1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
4999
5000
5001
5002
5003
5004
5005
5006
5007
5008
5009
5010
5011
5012
5013
5014
5015
5016
5017
5018
5019
5020
5021
5022
5023
5024
5025
5026
5027
5028
5029
5030
5031
5032
5033
5034
5035
5036
5037
5038
5039
5040
5041
5042
5043
5044
5045
5046
5047
5048
5049
5050
5051
5052
5053
5054
5055
5056
5057
5058
5059
5060
5061
5062
5063
5064
5065
5066
5067
5068
5069
5070
5071
5072
5073
5074
5075
5076
5077
5078
5079
5080
5081
5082
5083
5084
5085
5086
5087
5088
5089
5090
5091
5092
5093
5094
5095
5096
5097
5098
5099
5100
5101
5102
5103
5104
5105
5106
5107
5108
5109
5110
5111
5112
5113
5114
5115
5116
5117
5118
5119
5120
5121
5122
5123
5124
5125
5126
5127
5128
5129
5130
5131
5132
5133
5134
5135
5136
5137
5138
5139
5140
5141
5142
5143
5144
5145
5146
5147
5148
5149
5150
5151
5152
5153
5154
5155
5156
5157
5158
5159
5160
5161
5162
5163
5164
5165
5166
5167
5168
5169
5170
5171
5172
5173
5174
5175
5176
5177
5178
5179
5180
5181
5182
5183
5184
5185
5186
5187
5188
5189
5190
5191
5192
5193
5194
5195
5196
5197
5198
5199
5200
5201
5202
5203
5204
5205
5206
5207
5208
5209
5210
5211
5212
5213
5214
5215
5216
5217
5218
5219
5220
5221
5222
5223
5224
5225
5226
5227
5228
5229
5230
5231
5232
5233
5234
5235
5236
5237
5238
5239
5240
5241
5242
5243
5244
5245
5246
5247
5248
5249
5250
5251
5252
5253
5254
5255
5256
5257
5258
5259
5260
5261
5262
5263
5264
5265
5266
5267
5268
5269
5270
5271
5272
5273
5274
5275
5276
5277
5278
5279
5280
5281
5282
5283
5284
5285
5286
5287
5288
5289
5290
5291
5292
5293
5294
5295
5296
5297
5298
5299
5300
5301
5302
5303
5304
5305
5306
5307
5308
5309
5310
5311
5312
5313
5314
5315
5316
5317
5318
5319
5320
5321
5322
5323
5324
5325
5326
5327
5328
5329
5330
5331
5332
5333
5334
5335
5336
5337
5338
5339
5340
5341
5342
5343
5344
5345
5346
5347
5348
5349
5350
5351
5352
5353
5354
5355
5356
5357
5358
5359
5360
5361
5362
5363
5364
5365
5366
5367
5368
5369
5370
5371
5372
5373
5374
5375
5376
5377
5378
5379
5380
5381
5382
5383
5384
5385
5386
5387
5388
5389
5390
5391
5392
5393
5394
5395
5396
5397
5398
5399
5400
5401
5402
5403
5404
5405
5406
5407
5408
5409
5410
5411
5412
5413
5414
5415
5416
5417
5418
5419
5420
5421
5422
5423
5424
5425
5426
5427
5428
5429
5430
5431
5432
5433
5434
5435
5436
5437
5438
5439
5440
5441
5442
5443
5444
5445
5446
5447
5448
5449
5450
5451
5452
5453
5454
5455
5456
5457
5458
5459
5460
5461
5462
5463
5464
5465
5466
5467
5468
5469
5470
5471
5472
5473
5474
5475
5476
5477
5478
5479
5480
5481
5482
5483
5484
5485
5486
5487
5488
5489
5490
5491
5492
5493
5494
5495
5496
5497
5498
5499
5500
5501
5502
5503
5504
5505
5506
5507
5508
5509
5510
5511
5512
5513
5514
5515
5516
5517
5518
5519
5520
5521
5522
5523
5524
5525
5526
5527
5528
5529
5530
5531
5532
5533
5534
5535
5536
5537
5538
5539
5540
5541
5542
5543
5544
5545
5546
5547
5548
5549
5550
5551
5552
5553
5554
5555
5556
5557
5558
5559
5560
5561
5562
5563
5564
5565
5566
5567
5568
5569
5570
5571
5572
5573
5574
5575
5576
5577
5578
5579
5580
5581
5582
5583
5584
5585
5586
5587
5588
5589
5590
5591
5592
5593
5594
5595
5596
5597
5598
5599
5600
5601
5602
5603
5604
5605
5606
5607
5608
5609
5610
5611
5612
5613
5614
5615
5616
5617
5618
5619
5620
5621
5622
5623
5624
5625
5626
5627
5628
5629
5630
5631
5632
5633
5634
5635
5636
5637
5638
5639
5640
5641
5642
5643
5644
5645
5646
5647
5648
5649
5650
5651
5652
5653
5654
5655
5656
5657
5658
5659
5660
5661
5662
5663
5664
5665
5666
5667
5668
5669
5670
5671
5672
5673
5674
5675
5676
5677
5678
5679
5680
5681
5682
5683
5684
5685
5686
5687
5688
5689
5690
5691
5692
5693
5694
5695
5696
5697
5698
5699
5700
5701
5702
5703
5704
5705
5706
5707
5708
5709
5710
5711
5712
5713
5714
5715
5716
5717
5718
5719
5720
5721
5722
5723
5724
5725
5726
5727
5728
5729
5730
5731
5732
5733
5734
5735
5736
5737
5738
5739
5740
5741
5742
5743
5744
5745
5746
5747
5748
5749
5750
5751
5752
5753
5754
5755
5756
5757
5758
5759
5760
5761
5762
5763
5764
5765
5766
5767
5768
5769
5770
5771
5772
5773
5774
5775
5776
5777
5778
5779
5780
5781
5782
5783
5784
5785
5786
5787
5788
5789
5790
5791
5792
5793
5794
5795
5796
5797
5798
5799
5800
5801
5802
5803
5804
5805
5806
5807
5808
5809
5810
5811
5812
5813
5814
5815
5816
5817
5818
5819
5820
5821
5822
5823
5824
5825
5826
5827
5828
5829
5830
5831
5832
5833
5834
5835
5836
5837
5838
5839
5840
5841
5842
5843
5844
5845
5846
5847
5848
5849
5850
5851
5852
5853
5854
5855
5856
5857
5858
5859
5860
5861
5862
5863
5864
5865
5866
5867
5868
5869
5870
5871
5872
5873
5874
5875
5876
5877
5878
5879
5880
5881
5882
5883
5884
5885
5886
5887
5888
5889
5890
5891
5892
5893
5894
5895
5896
5897
5898
5899
5900
5901
5902
5903
5904
5905
5906
5907
5908
5909
5910
5911
5912
5913
5914
5915
5916
5917
5918
5919
5920
5921
5922
5923
5924
5925
5926
5927
5928
5929
5930
5931
5932
5933
5934
5935
5936
5937
5938
5939
5940
5941
5942
5943
5944
5945
5946
5947
5948
5949
5950
5951
5952
5953
5954
5955
5956
5957
5958
5959
5960
5961
5962
5963
5964
5965
5966
5967
5968
5969
5970
5971
5972
5973
5974
5975
5976
5977
5978
5979
5980
5981
5982
5983
5984
5985
5986
5987
5988
5989
5990
5991
5992
5993
5994
5995
5996
5997
5998
5999
6000
6001
6002
6003
6004
6005
6006
6007
6008
6009
6010
6011
6012
6013
6014
6015
6016
6017
6018
6019
6020
6021
6022
6023
6024
6025
6026
6027
6028
6029
6030
6031
6032
6033
6034
6035
6036
6037
6038
6039
6040
6041
6042
6043
6044
6045
6046
6047
6048
6049
6050
6051
6052
6053
6054
6055
6056
6057
6058
6059
6060
6061
6062
6063
6064
6065
6066
6067
6068
6069
6070
6071
6072
6073
6074
6075
6076
6077
6078
6079
6080
6081
6082
6083
6084
6085
6086
6087
6088
6089
6090
6091
6092
6093
6094
6095
6096
6097
6098
6099
6100
6101
6102
6103
6104
6105
6106
6107
6108
6109
6110
6111
6112
6113
6114
6115
6116
6117
6118
6119
6120
6121
6122
6123
6124
6125
6126
6127
6128
6129
6130
6131
6132
6133
6134
6135
6136
6137
6138
6139
6140
6141
6142
6143
6144
6145
6146
6147
6148
6149
6150
6151
6152
6153
6154
6155
6156
6157
6158
6159
6160
6161
6162
6163
6164
6165
6166
6167
6168
6169
6170
6171
6172
6173
6174
6175
6176
6177
6178
6179
6180
6181
6182
6183
6184
6185
6186
6187
6188
6189
6190
6191
6192
6193
6194
6195
6196
6197
6198
6199
6200
6201
6202
6203
6204
6205
6206
6207
6208
6209
6210
6211
6212
6213
6214
6215
6216
6217
6218
6219
6220
6221
6222
6223
6224
6225
6226
6227
6228
6229
6230
6231
6232
6233
6234
6235
6236
6237
6238
6239
6240
6241
6242
6243
6244
6245
6246
6247
6248
6249
6250
6251
6252
6253
6254
6255
6256
6257
6258
6259
6260
6261
6262
6263
6264
6265
6266
6267
6268
6269
6270
6271
6272
6273
6274
6275
6276
6277
6278
6279
6280
6281
6282
6283
6284
6285
6286
6287
6288
6289
6290
6291
6292
6293
6294
6295
6296
6297
6298
6299
6300
6301
6302
6303
6304
6305
6306
6307
6308
6309
6310
6311
6312
6313
6314
6315
6316
6317
6318
6319
6320
6321
6322
6323
6324
6325
6326
6327
6328
6329
6330
6331
6332
6333
6334
6335
6336
6337
6338
6339
6340
6341
6342
6343
6344
6345
6346
6347
6348
6349
6350
6351
6352
6353
6354
6355
6356
6357
6358
6359
6360
6361
6362
6363
6364
6365
6366
6367
6368
6369
6370
6371
6372
6373
6374
6375
6376
6377
6378
6379
6380
6381
6382
6383
6384
6385
6386
6387
6388
6389
6390
6391
6392
6393
6394
6395
6396
6397
6398
6399
6400
6401
6402
6403
6404
6405
6406
6407
6408
6409
6410
6411
6412
6413
6414
6415
6416
6417
6418
6419
6420
6421
6422
6423
6424
6425
6426
6427
6428
6429
6430
6431
6432
6433
6434
6435
6436
6437
6438
6439
6440
6441
6442
6443
6444
6445
6446
6447
6448
6449
6450
6451
6452
6453
6454
6455
6456
6457
6458
6459
6460
6461
6462
6463
6464
6465
6466
6467
6468
6469
6470
6471
6472
6473
6474
6475
6476
6477
6478
6479
6480
6481
6482
6483
6484
6485
6486
6487
6488
6489
6490
6491
6492
6493
6494
6495
6496
6497
6498
6499
6500
6501
6502
6503
6504
6505
6506
6507
6508
6509
6510
6511
6512
6513
6514
6515
6516
6517
6518
6519
6520
6521
6522
6523
6524
6525
6526
6527
6528
6529
6530
6531
6532
6533
6534
6535
6536
6537
6538
6539
6540
6541
6542
6543
6544
6545
6546
6547
6548
6549
6550
6551
6552
6553
6554
6555
6556
6557
6558
6559
6560
6561
6562
6563
6564
6565
6566
6567
6568
6569
6570
6571
6572
6573
6574
6575
6576
6577
6578
6579
6580
6581
6582
6583
6584
6585
6586
6587
6588
6589
6590
6591
6592
6593
6594
6595
6596
6597
6598
6599
6600
6601
6602
6603
6604
6605
6606
6607
6608
6609
6610
6611
6612
6613
6614
6615
6616
6617
6618
6619
6620
6621
6622
6623
6624
6625
6626
6627
6628
6629
6630
6631
6632
6633
6634
6635
6636
6637
6638
6639
6640
6641
6642
6643
6644
6645
6646
6647
6648
6649
6650
6651
6652
6653
6654
6655
6656
6657
6658
6659
6660
6661
6662
6663
6664
6665
6666
6667
6668
6669
6670
6671
6672
6673
6674
6675
6676
6677
6678
6679
6680
6681
6682
6683
6684
6685
6686
6687
6688
6689
6690
6691
6692
6693
6694
6695
6696
6697
6698
6699
6700
6701
6702
6703
6704
6705
6706
6707
6708
6709
6710
6711
6712
6713
6714
6715
6716
6717
6718
6719
6720
6721
6722
6723
6724
6725
6726
6727
6728
6729
6730
6731
6732
6733
6734
6735
6736
6737
6738
6739
6740
6741
6742
6743
6744
6745
6746
6747
6748
6749
6750
6751
6752
6753
6754
6755
6756
6757
6758
6759
6760
6761
6762
6763
6764
6765
6766
6767
6768
6769
6770
6771
6772
6773
6774
6775
6776
6777
6778
6779
6780
6781
6782
6783
6784
6785
6786
6787
6788
6789
6790
6791
6792
6793
6794
6795
6796
6797
6798
6799
6800
6801
6802
6803
6804
6805
6806
6807
6808
6809
6810
6811
6812
6813
6814
6815
6816
6817
6818
6819
6820
6821
6822
6823
6824
6825
6826
6827
6828
6829
6830
6831
6832
6833
6834
6835
6836
6837
6838
6839
6840
6841
6842
6843
6844
6845
6846
6847
6848
6849
6850
6851
6852
6853
6854
6855
6856
6857
6858
6859
6860
6861
6862
6863
6864
6865
6866
6867
6868
6869
6870
6871
6872
6873
6874
6875
6876
6877
6878
6879
6880
6881
6882
6883
6884
6885
6886
6887
6888
6889
6890
6891
6892
6893
6894
6895
6896
6897
6898
6899
6900
6901
6902
6903
6904
6905
6906
6907
6908
6909
6910
6911
6912
6913
6914
6915
6916
6917
6918
6919
6920
6921
6922
6923
6924
6925
6926
6927
6928
6929
6930
6931
6932
6933
6934
6935
6936
6937
6938
6939
6940
6941
6942
6943
6944
6945
6946
6947
6948
6949
6950
6951
6952
6953
6954
6955
6956
6957
6958
6959
6960
6961
6962
6963
6964
6965
6966
6967
6968
6969
6970
6971
6972
6973
6974
6975
6976
6977
6978
6979
6980
6981
6982
6983
6984
6985
6986
6987
6988
6989
6990
6991
6992
6993
6994
6995
6996
6997
6998
6999
7000
7001
7002
7003
7004
7005
7006
7007
7008
7009
7010
7011
7012
7013
7014
7015
7016
7017
7018
7019
7020
7021
7022
7023
7024
7025
7026
7027
7028
7029
7030
7031
7032
7033
7034
7035
7036
7037
7038
7039
7040
7041
7042
7043
7044
7045
7046
7047
7048
7049
7050
7051
7052
7053
7054
7055
7056
7057
7058
7059
7060
7061
7062
7063
7064
7065
7066
7067
7068
7069
7070
7071
7072
7073
7074
7075
7076
7077
7078
7079
7080
7081
7082
7083
7084
7085
7086
7087
7088
7089
7090
7091
7092
7093
7094
7095
7096
7097
7098
7099
7100
7101
7102
7103
7104
7105
7106
7107
7108
7109
7110
7111
7112
7113
7114
7115
7116
7117
7118
7119
7120
7121
7122
7123
7124
7125
7126
7127
7128
7129
7130
7131
7132
7133
7134
7135
7136
7137
7138
7139
7140
7141
7142
7143
7144
7145
7146
7147
7148
7149
7150
7151
7152
7153
7154
7155
7156
7157
7158
7159
7160
7161
7162
7163
7164
7165
7166
7167
7168
7169
7170
7171
7172
7173
7174
7175
7176
7177
7178
7179
7180
7181
7182
7183
7184
7185
7186
7187
7188
7189
7190
7191
7192
7193
7194
7195
7196
7197
7198
7199
7200
7201
7202
7203
7204
7205
7206
7207
7208
7209
7210
7211
7212
7213
7214
7215
7216
7217
7218
7219
7220
7221
7222
7223
7224
7225
7226
7227
7228
7229
7230
7231
7232
7233
7234
7235
7236
7237
7238
7239
7240
7241
7242
7243
7244
7245
7246
7247
7248
7249
7250
7251
7252
7253
7254
7255
7256
7257
7258
7259
7260
7261
7262
7263
7264
7265
7266
7267
7268
7269
7270
7271
7272
7273
7274
7275
7276
7277
7278
7279
7280
7281
7282
7283
7284
7285
7286
7287
7288
7289
7290
7291
7292
7293
7294
7295
7296
7297
7298
7299
7300
7301
7302
7303
7304
7305
7306
7307
7308
7309
7310
7311
7312
7313
7314
7315
7316
7317
7318
7319
7320
7321
7322
7323
7324
7325
7326
7327
7328
7329
7330
7331
7332
7333
7334
7335
7336
7337
7338
7339
7340
7341
7342
7343
7344
7345
7346
7347
7348
7349
7350
7351
7352
7353
7354
7355
7356
7357
7358
7359
7360
7361
7362
7363
7364
7365
7366
7367
7368
7369
7370
7371
7372
7373
7374
7375
7376
7377
7378
7379
7380
7381
7382
7383
7384
7385
7386
7387
7388
7389
7390
7391
7392
7393
7394
7395
7396
7397
7398
7399
7400
7401
7402
7403
7404
7405
7406
7407
7408
7409
7410
7411
7412
7413
7414
7415
7416
7417
7418
7419
7420
7421
7422
7423
7424
7425
7426
7427
7428
7429
7430
7431
7432
7433
7434
7435
7436
7437
7438
7439
7440
7441
7442
7443
7444
7445
7446
7447
7448
7449
7450
7451
7452
7453
7454
7455
7456
7457
7458
7459
7460
7461
7462
7463
7464
7465
7466
7467
7468
7469
7470
7471
7472
7473
7474
7475
7476
7477
7478
7479
7480
7481
7482
7483
7484
7485
7486
7487
7488
7489
7490
7491
7492
7493
7494
7495
7496
7497
7498
7499
7500
7501
7502
7503
7504
7505
7506
7507
7508
7509
7510
7511
7512
7513
7514
7515
7516
7517
7518
7519
7520
7521
7522
7523
7524
7525
7526
7527
7528
7529
7530
7531
7532
7533
7534
7535
7536
7537
7538
7539
7540
7541
7542
7543
7544
7545
7546
7547
7548
7549
7550
7551
7552
7553
7554
7555
7556
7557
7558
7559
7560
7561
7562
7563
7564
7565
7566
7567
7568
7569
7570
7571
7572
7573
7574
7575
7576
7577
7578
7579
7580
7581
7582
7583
7584
7585
7586
7587
7588
7589
7590
7591
7592
7593
7594
7595
7596
7597
7598
7599
7600
7601
7602
7603
7604
7605
7606
7607
7608
7609
7610
7611
7612
7613
7614
7615
7616
7617
7618
7619
7620
7621
7622
7623
7624
7625
7626
7627
7628
7629
7630
7631
7632
7633
7634
7635
7636
7637
7638
7639
7640
7641
7642
7643
7644
7645
7646
7647
7648
7649
7650
7651
7652
7653
7654
7655
7656
7657
7658
7659
7660
7661
7662
7663
7664
7665
7666
7667
7668
7669
7670
7671
7672
7673
7674
7675
7676
7677
7678
7679
7680
7681
7682
7683
7684
7685
7686
7687
7688
7689
7690
7691
7692
7693
7694
7695
7696
7697
7698
7699
7700
7701
7702
7703
7704
7705
7706
7707
7708
7709
7710
7711
7712
7713
7714
7715
7716
7717
7718
7719
7720
7721
7722
7723
7724
7725
7726
7727
7728
7729
7730
7731
7732
7733
7734
7735
7736
7737
7738
7739
7740
7741
7742
7743
7744
7745
7746
7747
7748
7749
7750
7751
7752
7753
7754
7755
7756
7757
7758
7759
7760
7761
7762
7763
7764
7765
7766
7767
7768
7769
7770
7771
7772
7773
7774
7775
7776
7777
7778
7779
7780
7781
7782
7783
7784
7785
7786
7787
7788
7789
7790
7791
7792
7793
7794
7795
7796
7797
7798
7799
7800
7801
7802
7803
7804
7805
7806
7807
7808
7809
7810
7811
7812
7813
7814
7815
7816
7817
7818
7819
7820
7821
7822
7823
7824
7825
7826
7827
7828
7829
7830
7831
7832
7833
7834
7835
7836
7837
7838
7839
7840
7841
7842
7843
7844
7845
7846
7847
7848
7849
7850
7851
7852
7853
7854
7855
7856
7857
7858
7859
7860
7861
7862
7863
7864
7865
7866
7867
7868
7869
7870
7871
7872
7873
7874
7875
7876
7877
7878
7879
7880
7881
7882
7883
7884
7885
7886
7887
7888
7889
7890
7891
7892
7893
7894
7895
7896
7897
7898
7899
7900
7901
7902
7903
7904
7905
7906
7907
7908
7909
7910
7911
7912
7913
7914
7915
7916
7917
7918
7919
7920
7921
7922
7923
7924
7925
7926
7927
7928
7929
7930
7931
7932
7933
7934
7935
7936
7937
7938
7939
7940
7941
7942
7943
7944
7945
7946
7947
7948
7949
7950
7951
7952
7953
7954
7955
7956
7957
7958
7959
7960
7961
7962
7963
7964
7965
7966
7967
7968
7969
7970
7971
7972
7973
7974
7975
7976
7977
7978
7979
7980
7981
7982
7983
7984
7985
7986
7987
7988
7989
7990
7991
7992
7993
7994
7995
7996
7997
7998
7999
8000
8001
8002
8003
8004
8005
8006
8007
8008
8009
8010
8011
8012
8013
8014
8015
8016
8017
8018
8019
8020
8021
8022
8023
8024
8025
8026
8027
8028
8029
8030
8031
8032
8033
8034
8035
8036
8037
8038
8039
8040
8041
8042
8043
8044
8045
8046
8047
8048
8049
8050
8051
8052
8053
8054
8055
8056
8057
8058
8059
8060
8061
8062
8063
8064
8065
8066
8067
8068
8069
8070
8071
8072
8073
8074
8075
8076
8077
8078
8079
8080
8081
8082
8083
8084
8085
8086
8087
8088
8089
8090
8091
8092
8093
8094
8095
8096
8097
8098
8099
8100
8101
8102
8103
8104
8105
8106
8107
8108
8109
8110
8111
8112
8113
8114
8115
8116
8117
8118
8119
8120
8121
8122
8123
8124
8125
8126
8127
8128
8129
8130
8131
8132
8133
8134
8135
8136
8137
8138
8139
8140
8141
8142
8143
8144
8145
8146
8147
8148
8149
8150
8151
8152
8153
8154
8155
8156
8157
8158
8159
8160
8161
8162
8163
8164
8165
8166
8167
8168
8169
8170
8171
8172
8173
8174
8175
8176
8177
8178
8179
8180
8181
8182
8183
8184
8185
8186
8187
8188
8189
8190
8191
8192
8193
8194
8195
8196
8197
8198
8199
8200
8201
8202
8203
8204
8205
8206
8207
8208
8209
8210
8211
8212
8213
8214
8215
8216
8217
8218
8219
8220
8221
8222
8223
8224
8225
8226
8227
8228
8229
8230
8231
8232
8233
8234
8235
8236
8237
8238
8239
8240
8241
8242
8243
8244
8245
8246
8247
8248
8249
8250
8251
8252
8253
8254
8255
8256
8257
8258
8259
8260
8261
8262
8263
8264
8265
8266
8267
8268
8269
8270
8271
8272
8273
8274
8275
8276
8277
8278
8279
8280
8281
8282
8283
8284
8285
8286
8287
8288
8289
8290
8291
8292
8293
8294
8295
8296
8297
8298
8299
8300
8301
8302
8303
8304
8305
8306
8307
8308
8309
8310
8311
8312
8313
8314
8315
8316
8317
8318
8319
8320
8321
8322
8323
8324
8325
8326
8327
8328
8329
8330
8331
8332
8333
8334
8335
8336
8337
8338
8339
8340
8341
8342
8343
8344
8345
8346
8347
8348
8349
8350
8351
8352
8353
8354
8355
8356
8357
8358
8359
8360
8361
8362
8363
8364
8365
8366
8367
8368
8369
8370
8371
8372
8373
8374
8375
8376
8377
8378
8379
8380
8381
8382
8383
8384
8385
8386
8387
8388
8389
8390
8391
8392
8393
8394
8395
8396
8397
8398
8399
8400
8401
8402
8403
8404
8405
8406
8407
8408
8409
8410
8411
8412
8413
8414
8415
8416
8417
8418
8419
8420
8421
8422
8423
8424
8425
8426
8427
8428
8429
8430
8431
8432
8433
8434
8435
8436
8437
8438
8439
8440
8441
8442
8443
8444
8445
8446
8447
8448
8449
8450
8451
8452
8453
8454
8455
8456
8457
8458
8459
8460
8461
8462
8463
8464
8465
8466
8467
8468
8469
8470
8471
8472
8473
8474
8475
8476
8477
8478
8479
8480
8481
8482
8483
8484
8485
8486
8487
8488
8489
8490
8491
8492
8493
8494
8495
8496
8497
8498
8499
8500
8501
8502
8503
8504
8505
8506
8507
8508
8509
8510
8511
8512
8513
8514
8515
8516
8517
8518
8519
8520
8521
8522
8523
8524
8525
8526
8527
8528
8529
8530
8531
8532
8533
8534
8535
8536
8537
8538
8539
8540
8541
8542
8543
8544
8545
8546
8547
8548
8549
8550
8551
8552
8553
8554
8555
8556
8557
8558
8559
8560
8561
8562
8563
8564
8565
8566
8567
8568
8569
8570
8571
8572
8573
8574
8575
8576
8577
8578
8579
8580
8581
8582
8583
8584
8585
8586
8587
8588
8589
8590
8591
8592
8593
8594
8595
8596
8597
8598
8599
8600
8601
8602
8603
8604
8605
8606
8607
8608
8609
8610
8611
8612
8613
8614
8615
8616
8617
8618
8619
8620
8621
8622
8623
8624
8625
8626
8627
8628
8629
8630
8631
8632
8633
8634
8635
8636
8637
8638
8639
8640
8641
8642
8643
8644
8645
8646
8647
8648
8649
8650
8651
8652
8653
8654
8655
8656
8657
8658
8659
8660
8661
8662
8663
8664
8665
8666
8667
8668
8669
8670
8671
8672
8673
8674
8675
8676
8677
8678
8679
8680
8681
8682
8683
8684
8685
8686
8687
8688
8689
8690
8691
8692
8693
8694
8695
8696
8697
8698
8699
8700
8701
8702
8703
8704
8705
8706
8707
8708
8709
8710
8711
8712
8713
8714
8715
8716
8717
8718
8719
8720
8721
8722
8723
8724
8725
8726
8727
8728
8729
8730
8731
8732
8733
8734
8735
8736
8737
8738
8739
8740
8741
8742
8743
8744
8745
8746
8747
8748
8749
8750
8751
8752
8753
8754
8755
8756
8757
8758
8759
8760
8761
8762
8763
8764
8765
8766
8767
8768
8769
8770
8771
8772
8773
8774
8775
8776
8777
8778
8779
8780
8781
8782
8783
8784
8785
8786
8787
8788
8789
8790
8791
8792
8793
8794
8795
8796
8797
8798
8799
8800
8801
8802
8803
8804
8805
8806
8807
8808
8809
8810
8811
8812
8813
8814
8815
8816
8817
8818
8819
8820
8821
8822
8823
8824
8825
8826
8827
8828
8829
8830
8831
8832
8833
8834
8835
8836
8837
8838
8839
8840
8841
8842
8843
8844
8845
8846
8847
8848
8849
8850
8851
8852
8853
8854
8855
8856
8857
8858
8859
8860
8861
8862
8863
8864
8865
8866
8867
8868
8869
8870
8871
8872
8873
8874
8875
8876
8877
8878
8879
8880
8881
8882
8883
8884
8885
8886
8887
8888
8889
8890
8891
8892
8893
8894
8895
8896
8897
8898
8899
8900
8901
8902
8903
8904
8905
8906
8907
8908
8909
8910
8911
8912
8913
8914
8915
8916
8917
8918
8919
8920
8921
8922
8923
8924
8925
8926
8927
8928
8929
8930
8931
8932
8933
8934
8935
8936
8937
8938
8939
8940
8941
8942
8943
8944
8945
8946
8947
8948
8949
8950
8951
8952
8953
8954
8955
8956
8957
8958
8959
8960
8961
8962
8963
8964
8965
8966
8967
8968
8969
8970
8971
8972
8973
8974
8975
8976
8977
8978
8979
8980
8981
8982
8983
8984
8985
8986
8987
8988
8989
8990
8991
8992
8993
8994
8995
8996
8997
8998
8999
9000
9001
9002
9003
9004
9005
9006
9007
9008
9009
9010
9011
9012
9013
9014
9015
9016
9017
9018
9019
9020
9021
9022
9023
9024
9025
9026
9027
9028
9029
9030
9031
9032
9033
9034
9035
9036
9037
9038
9039
9040
9041
9042
9043
9044
9045
9046
9047
9048
9049
9050
9051
9052
9053
9054
9055
9056
9057
9058
9059
9060
9061
9062
9063
9064
9065
9066
9067
9068
9069
9070
9071
9072
9073
9074
9075
9076
9077
9078
9079
9080
9081
9082
9083
9084
9085
9086
9087
9088
9089
9090
9091
9092
9093
9094
9095
9096
9097
9098
9099
9100
9101
9102
9103
9104
9105
9106
9107
9108
9109
9110
9111
9112
9113
9114
9115
9116
9117
9118
9119
9120
9121
9122
9123
9124
9125
9126
9127
9128
9129
9130
9131
9132
9133
9134
9135
9136
9137
9138
9139
9140
9141
9142
9143
9144
9145
9146
9147
9148
9149
9150
9151
9152
9153
9154
9155
9156
9157
9158
9159
9160
9161
9162
9163
9164
9165
9166
9167
9168
9169
9170
9171
9172
9173
9174
9175
9176
9177
9178
9179
9180
9181
9182
9183
9184
9185
9186
9187
9188
9189
9190
9191
9192
9193
9194
9195
9196
9197
9198
9199
9200
9201
9202
9203
9204
9205
9206
9207
9208
9209
9210
9211
9212
9213
9214
9215
9216
9217
9218
9219
9220
9221
9222
9223
9224
9225
9226
9227
9228
9229
9230
9231
9232
9233
9234
9235
9236
9237
9238
9239
9240
9241
9242
9243
9244
9245
9246
9247
9248
9249
9250
9251
9252
9253
9254
9255
9256
9257
9258
9259
9260
9261
9262
9263
9264
9265
9266
9267
9268
9269
9270
9271
9272
9273
9274
9275
9276
9277
9278
9279
9280
9281
9282
9283
9284
9285
9286
9287
9288
9289
9290
9291
9292
9293
9294
9295
9296
9297
9298
9299
9300
9301
9302
9303
9304
9305
9306
9307
9308
9309
9310
9311
9312
9313
9314
9315
9316
9317
9318
9319
9320
9321
9322
9323
9324
9325
9326
9327
9328
9329
9330
9331
9332
9333
9334
9335
9336
9337
9338
9339
9340
9341
9342
9343
9344
9345
9346
9347
9348
9349
9350
9351
9352
9353
9354
9355
9356
9357
9358
9359
9360
9361
9362
9363
9364
9365
9366
9367
9368
9369
9370
9371
9372
9373
9374
9375
9376
9377
9378
9379
9380
9381
9382
9383
9384
9385
9386
9387
9388
9389
9390
9391
9392
9393
9394
9395
9396
9397
9398
9399
9400
9401
9402
9403
9404
9405
9406
9407
9408
9409
9410
9411
9412
9413
9414
9415
9416
9417
9418
9419
9420
9421
9422
9423
9424
9425
9426
9427
9428
9429
9430
9431
9432
9433
9434
9435
9436
9437
9438
9439
9440
9441
9442
9443
9444
9445
9446
9447
9448
9449
9450
9451
9452
9453
9454
9455
9456
9457
9458
9459
9460
9461
9462
9463
9464
9465
9466
9467
9468
9469
9470
9471
9472
9473
9474
9475
9476
9477
9478
9479
9480
9481
9482
9483
9484
9485
9486
9487
9488
9489
9490
9491
9492
9493
9494
9495
9496
9497
9498
9499
9500
9501
9502
9503
9504
9505
9506
9507
9508
9509
9510
9511
9512
9513
9514
9515
9516
9517
9518
9519
9520
9521
9522
9523
9524
9525
9526
9527
9528
9529
9530
9531
9532
9533
9534
9535
9536
9537
9538
9539
9540
9541
9542
9543
9544
9545
9546
9547
9548
9549
9550
9551
9552
9553
9554
9555
9556
9557
9558
9559
9560
9561
9562
9563
9564
9565
9566
9567
9568
9569
9570
9571
9572
9573
9574
9575
9576
9577
9578
9579
9580
9581
9582
9583
9584
9585
9586
9587
9588
9589
9590
9591
9592
9593
9594
9595
9596
9597
9598
9599
9600
9601
9602
9603
9604
9605
9606
9607
9608
9609
9610
9611
9612
9613
9614
9615
9616
9617
9618
9619
9620
9621
9622
9623
9624
9625
9626
9627
9628
9629
9630
9631
9632
9633
9634
9635
9636
9637
9638
9639
9640
9641
9642
9643
9644
9645
9646
9647
9648
9649
9650
9651
9652
9653
9654
9655
9656
9657
9658
9659
9660
9661
9662
9663
9664
9665
9666
9667
9668
9669
9670
9671
9672
9673
9674
9675
9676
9677
9678
9679
9680
9681
9682
9683
9684
9685
9686
9687
9688
9689
9690
9691
9692
9693
9694
9695
9696
9697
9698
9699
9700
9701
9702
9703
9704
9705
9706
9707
9708
9709
9710
9711
9712
9713
9714
9715
9716
9717
9718
9719
9720
9721
9722
9723
9724
9725
9726
9727
9728
9729
9730
9731
9732
9733
9734
9735
9736
9737
9738
9739
9740
9741
9742
9743
9744
9745
9746
9747
9748
9749
9750
9751
9752
9753
9754
9755
9756
9757
9758
9759
9760
9761
9762
9763
9764
9765
9766
9767
9768
9769
9770
9771
9772
9773
9774
9775
9776
9777
9778
9779
9780
9781
9782
9783
9784
9785
9786
9787
9788
9789
9790
9791
9792
9793
9794
9795
9796
9797
9798
9799
9800
9801
9802
9803
9804
9805
9806
9807
9808
9809
9810
9811
9812
9813
9814
9815
9816
9817
9818
9819
9820
9821
9822
9823
9824
9825
9826
9827
9828
9829
9830
9831
9832
9833
9834
9835
9836
9837
9838
9839
9840
9841
9842
9843
9844
9845
9846
9847
9848
9849
9850
9851
9852
9853
9854
9855
9856
9857
9858
9859
9860
9861
9862
9863
9864
9865
9866
9867
9868
9869
9870
9871
9872
9873
9874
9875
9876
9877
9878
9879
9880
9881
9882
9883
9884
9885
9886
9887
9888
9889
9890
9891
9892
9893
9894
9895
9896
9897
9898
9899
9900
9901
9902
9903
9904
9905
9906
9907
9908
9909
9910
9911
9912
9913
9914
9915
9916
9917
9918
9919
9920
9921
9922
9923
9924
9925
9926
9927
9928
9929
9930
9931
9932
9933
9934
9935
9936
9937
9938
9939
9940
9941
9942
9943
9944
9945
9946
9947
9948
9949
9950
9951
9952
9953
9954
9955
9956
9957
9958
9959
9960
9961
9962
9963
9964
9965
9966
9967
9968
9969
9970
9971
9972
9973
9974
9975
9976
9977
9978
9979
9980
9981
9982
9983
9984
9985
9986
9987
9988
9989
9990
9991
9992
9993
9994
9995
9996
9997
9998
9999
10000
10001
10002
10003
10004
10005
10006
10007
10008
10009
10010
10011
10012
10013
10014
10015
10016
10017
10018
10019
10020
10021
10022
10023
10024
10025
10026
10027
10028
10029
10030
10031
10032
10033
10034
10035
10036
10037
10038
10039
10040
10041
10042
10043
10044
10045
10046
10047
10048
10049
10050
10051
10052
10053
10054
10055
10056
10057
10058
10059
10060
10061
10062
10063
10064
10065
10066
10067
10068
10069
10070
10071
10072
10073
10074
10075
10076
10077
10078
10079
10080
10081
10082
10083
10084
10085
10086
10087
10088
10089
10090
10091
10092
10093
10094
10095
10096
10097
10098
10099
10100
10101
10102
10103
10104
10105
10106
10107
10108
10109
10110
10111
10112
10113
10114
10115
10116
10117
10118
10119
10120
10121
10122
10123
10124
10125
10126
10127
10128
10129
10130
10131
10132
10133
10134
10135
10136
10137
10138
10139
10140
10141
10142
10143
10144
10145
10146
10147
10148
10149
10150
10151
10152
10153
10154
10155
10156
10157
10158
10159
10160
10161
10162
10163
10164
10165
10166
10167
10168
10169
10170
10171
10172
10173
10174
10175
10176
10177
10178
10179
10180
10181
10182
10183
10184
10185
10186
10187
10188
10189
10190
10191
10192
10193
10194
10195
10196
10197
10198
10199
10200
10201
10202
10203
10204
10205
10206
10207
10208
10209
10210
10211
10212
10213
10214
10215
10216
10217
10218
10219
10220
10221
10222
10223
10224
10225
10226
10227
10228
10229
10230
10231
10232
10233
10234
10235
10236
10237
10238
10239
10240
10241
10242
10243
10244
10245
10246
10247
10248
10249
10250
10251
10252
10253
10254
10255
10256
10257
10258
10259
10260
10261
10262
10263
10264
10265
10266
10267
10268
10269
10270
10271
10272
10273
10274
10275
10276
10277
10278
10279
10280
10281
10282
10283
10284
10285
10286
10287
10288
10289
10290
10291
10292
10293
10294
10295
10296
10297
10298
10299
10300
10301
10302
10303
10304
10305
10306
10307
10308
10309
10310
10311
10312
10313
10314
10315
10316
10317
10318
10319
10320
10321
10322
10323
10324
10325
10326
10327
10328
10329
10330
10331
10332
10333
10334
10335
10336
10337
10338
10339
10340
10341
10342
10343
10344
10345
10346
10347
10348
10349
10350
10351
10352
10353
10354
10355
10356
10357
10358
10359
10360
10361
10362
10363
10364
10365
10366
10367
10368
10369
10370
10371
10372
10373
10374
10375
10376
10377
10378
10379
10380
10381
10382
10383
10384
10385
10386
10387
10388
10389
10390
10391
10392
10393
10394
10395
10396
10397
10398
10399
10400
10401
10402
10403
10404
10405
10406
10407
10408
10409
10410
10411
10412
10413
10414
10415
10416
10417
10418
10419
10420
10421
10422
10423
10424
10425
10426
10427
10428
10429
10430
10431
10432
10433
10434
10435
10436
10437
10438
10439
10440
10441
10442
10443
10444
10445
10446
10447
10448
10449
10450
10451
10452
10453
10454
10455
10456
10457
10458
10459
10460
10461
10462
10463
10464
10465
10466
10467
10468
10469
10470
10471
10472
10473
10474
10475
10476
10477
10478
10479
10480
10481
10482
10483
10484
10485
10486
10487
10488
10489
10490
10491
10492
10493
10494
10495
10496
10497
10498
10499
10500
10501
10502
10503
10504
10505
10506
10507
10508
10509
10510
10511
10512
10513
10514
10515
10516
10517
10518
10519
10520
10521
10522
10523
10524
10525
10526
10527
10528
10529
10530
10531
10532
10533
10534
10535
10536
10537
10538
10539
10540
10541
10542
10543
10544
10545
10546
10547
10548
10549
10550
10551
10552
10553
10554
10555
10556
10557
10558
10559
10560
10561
10562
10563
10564
10565
10566
10567
10568
10569
10570
10571
10572
10573
10574
10575
10576
10577
10578
10579
10580
10581
10582
10583
10584
10585
10586
10587
10588
10589
10590
10591
10592
10593
10594
10595
10596
10597
10598
10599
10600
10601
10602
10603
10604
10605
10606
10607
10608
10609
10610
10611
10612
10613
10614
10615
10616
10617
10618
10619
10620
10621
10622
10623
10624
10625
10626
10627
10628
10629
10630
10631
10632
10633
10634
10635
10636
10637
10638
10639
10640
10641
10642
10643
10644
10645
10646
10647
10648
10649
10650
10651
10652
10653
10654
10655
10656
10657
10658
10659
10660
10661
10662
10663
10664
10665
10666
10667
10668
10669
10670
10671
10672
10673
10674
10675
10676
10677
10678
10679
10680
10681
10682
10683
10684
10685
10686
10687
10688
10689
10690
10691
10692
10693
10694
10695
10696
10697
10698
10699
10700
10701
10702
10703
10704
10705
10706
10707
10708
10709
10710
10711
10712
10713
10714
10715
10716
10717
10718
10719
10720
10721
10722
10723
10724
10725
10726
10727
10728
10729
10730
10731
10732
10733
10734
10735
10736
10737
10738
10739
10740
10741
10742
10743
10744
10745
10746
10747
10748
10749
10750
10751
10752
10753
10754
10755
10756
10757
10758
10759
10760
10761
10762
10763
10764
10765
10766
10767
10768
10769
10770
10771
10772
10773
10774
10775
10776
10777
10778
10779
10780
10781
10782
10783
10784
10785
10786
10787
10788
10789
10790
10791
10792
10793
10794
10795
10796
10797
10798
10799
10800
10801
10802
10803
10804
10805
10806
10807
10808
10809
10810
10811
10812
10813
10814
10815
10816
10817
10818
10819
10820
10821
10822
10823
10824
10825
10826
10827
10828
10829
10830
10831
10832
10833
10834
10835
10836
10837
10838
10839
10840
10841
10842
10843
10844
10845
10846
10847
10848
10849
10850
10851
10852
10853
10854
10855
10856
10857
10858
10859
10860
10861
10862
10863
10864
10865
10866
10867
10868
10869
10870
10871
10872
10873
10874
10875
10876
10877
10878
10879
10880
10881
10882
10883
10884
10885
10886
10887
10888
10889
10890
10891
10892
10893
10894
10895
10896
10897
10898
10899
10900
10901
10902
10903
10904
10905
10906
10907
10908
10909
10910
10911
10912
10913
10914
10915
10916
10917
10918
10919
10920
10921
10922
10923
10924
10925
10926
10927
10928
10929
10930
10931
10932
10933
10934
10935
10936
10937
10938
10939
10940
10941
10942
10943
10944
10945
10946
10947
10948
10949
10950
10951
10952
10953
10954
10955
10956
10957
10958
10959
10960
10961
10962
10963
10964
10965
10966
10967
10968
10969
10970
10971
10972
10973
10974
10975
10976
10977
10978
10979
10980
10981
10982
10983
10984
10985
10986
10987
10988
10989
10990
10991
10992
10993
| | /* Utility and Unix shadow routines for GNU Emacs on the Microsoft Windows API.
Copyright (C) 1994-1995, 2000-2021 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
/*
Geoff Voelker (voelker@cs.washington.edu) 7-29-94
*/
#define DEFER_MS_W32_H
#include <config.h>
#include <mingw_time.h>
#include <stddef.h> /* for offsetof */
#include <stdlib.h>
#include <stdio.h>
#include <float.h> /* for DBL_EPSILON */
#include <io.h>
#include <errno.h>
#include <fcntl.h>
#include <ctype.h>
#include <signal.h>
#include <sys/file.h>
#include <time.h> /* must be before nt/inc/sys/time.h, for MinGW64 */
#include <sys/time.h>
#include <sys/utime.h>
#include <math.h>
#include <nproc.h>
/* Include (most) CRT headers *before* ms-w32.h. */
#include <ms-w32.h>
#include <string.h> /* for strerror, needed by sys_strerror */
#include <mbstring.h> /* for _mbspbrk, _mbslwr, _mbsrchr, ... */
#undef access
#undef chdir
#undef chmod
#undef creat
#undef ctime
#undef fopen
#undef link
#undef mkdir
#undef open
#undef rename
#undef rmdir
#undef unlink
#undef close
#undef dup
#undef dup2
#undef pipe
#undef read
#undef write
#undef strerror
#undef localtime
char *sys_ctime (const time_t *);
int sys_chdir (const char *);
int sys_creat (const char *, int);
FILE *sys_fopen (const char *, const char *);
int sys_open (const char *, int, int);
int sys_rename (char const *, char const *);
int sys_rmdir (const char *);
int sys_close (int);
int sys_dup2 (int, int);
int sys_read (int, char *, unsigned int);
int sys_write (int, const void *, unsigned int);
struct tm *sys_localtime (const time_t *);
/* MinGW64 system headers include string.h too early, causing the
compiler to emit a warning about sys_strerror having no
prototype. */
char *sys_strerror (int);
#ifdef HAVE_MODULES
extern void dynlib_reset_last_error (void);
#endif
#include "lisp.h"
#include "epaths.h" /* for PATH_EXEC */
#include <pwd.h>
#include <grp.h>
#include <windows.h>
/* Some versions of compiler define MEMORYSTATUSEX, some don't, so we
use a different name to avoid compilation problems. */
typedef struct _MEMORY_STATUS_EX {
DWORD dwLength;
DWORD dwMemoryLoad;
DWORDLONG ullTotalPhys;
DWORDLONG ullAvailPhys;
DWORDLONG ullTotalPageFile;
DWORDLONG ullAvailPageFile;
DWORDLONG ullTotalVirtual;
DWORDLONG ullAvailVirtual;
DWORDLONG ullAvailExtendedVirtual;
} MEMORY_STATUS_EX,*LPMEMORY_STATUS_EX;
/* These are here so that GDB would know about these data types. This
allows attaching GDB to Emacs when a fatal exception is triggered
and Windows pops up the "application needs to be closed" dialog.
At that point, _gnu_exception_handler, the top-level exception
handler installed by the MinGW startup code, is somewhere on the
call-stack of the main thread, so going to that call frame and
looking at the argument to _gnu_exception_handler, which is a
PEXCEPTION_POINTERS pointer, can reveal the exception code
(excptr->ExceptionRecord->ExceptionCode) and the address where the
exception happened (excptr->ExceptionRecord->ExceptionAddress), as
well as some additional information specific to the exception. */
PEXCEPTION_POINTERS excptr;
PEXCEPTION_RECORD excprec;
PCONTEXT ctxrec;
#include <lmcons.h>
#include <shlobj.h>
#include <tlhelp32.h>
#include <psapi.h>
#ifndef _MSC_VER
#include <w32api.h>
#endif
#if _WIN32_WINNT < 0x0500
#if !defined (__MINGW32__) || __W32API_MAJOR_VERSION < 3 || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION < 15)
/* This either is not in psapi.h or guarded by higher value of
_WIN32_WINNT than what we use. w32api supplied with MinGW 3.15
defines it in psapi.h */
typedef struct _PROCESS_MEMORY_COUNTERS_EX {
DWORD cb;
DWORD PageFaultCount;
SIZE_T PeakWorkingSetSize;
SIZE_T WorkingSetSize;
SIZE_T QuotaPeakPagedPoolUsage;
SIZE_T QuotaPagedPoolUsage;
SIZE_T QuotaPeakNonPagedPoolUsage;
SIZE_T QuotaNonPagedPoolUsage;
SIZE_T PagefileUsage;
SIZE_T PeakPagefileUsage;
SIZE_T PrivateUsage;
} PROCESS_MEMORY_COUNTERS_EX,*PPROCESS_MEMORY_COUNTERS_EX;
#endif
#endif
#include <winioctl.h>
#include <aclapi.h>
#include <sddl.h>
#include <sys/acl.h>
#include <acl.h>
/* This is not in MinGW's sddl.h (but they are in MSVC headers), so we
define them by hand if not already defined. */
#ifndef SDDL_REVISION_1
#define SDDL_REVISION_1 1
#endif /* SDDL_REVISION_1 */
#if defined(_MSC_VER) || defined(MINGW_W64)
/* MSVC and MinGW64 don't provide the definition of
REPARSE_DATA_BUFFER and the associated macros, except on ntifs.h,
which cannot be included because it triggers conflicts with other
Windows API headers. So we define it here by hand. */
typedef struct _REPARSE_DATA_BUFFER {
ULONG ReparseTag;
USHORT ReparseDataLength;
USHORT Reserved;
union {
struct {
USHORT SubstituteNameOffset;
USHORT SubstituteNameLength;
USHORT PrintNameOffset;
USHORT PrintNameLength;
ULONG Flags;
WCHAR PathBuffer[1];
} SymbolicLinkReparseBuffer;
struct {
USHORT SubstituteNameOffset;
USHORT SubstituteNameLength;
USHORT PrintNameOffset;
USHORT PrintNameLength;
WCHAR PathBuffer[1];
} MountPointReparseBuffer;
struct {
UCHAR DataBuffer[1];
} GenericReparseBuffer;
} DUMMYUNIONNAME;
} REPARSE_DATA_BUFFER, *PREPARSE_DATA_BUFFER;
#ifndef FILE_DEVICE_FILE_SYSTEM
#define FILE_DEVICE_FILE_SYSTEM 9
#endif
#ifndef METHOD_BUFFERED
#define METHOD_BUFFERED 0
#endif
#ifndef FILE_ANY_ACCESS
#define FILE_ANY_ACCESS 0x00000000
#endif
#ifndef CTL_CODE
#define CTL_CODE(t,f,m,a) (((t)<<16)|((a)<<14)|((f)<<2)|(m))
#endif
/* MinGW64 defines FSCTL_GET_REPARSE_POINT on winioctl.h. */
#ifndef FSCTL_GET_REPARSE_POINT
#define FSCTL_GET_REPARSE_POINT \
CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 42, METHOD_BUFFERED, FILE_ANY_ACCESS)
#endif
#endif
/* TCP connection support. */
#include <sys/socket.h>
#undef socket
#undef bind
#undef connect
#undef htons
#undef ntohs
#undef htonl
#undef ntohl
#undef inet_addr
#undef gethostname
#undef gethostbyname
#undef getservbyname
#undef getpeername
#undef shutdown
#undef setsockopt
#undef listen
#undef getsockname
#undef accept
#undef recvfrom
#undef sendto
/* We need at least XP level for GetAdaptersAddresses stuff. */
#if _WIN32_WINNT < 0x0501
# undef ORIG_WIN32_WINNT
# define ORIG_WIN32_WINNT _WIN32_WINNT
# undef _WIN32_WINNT
# define _WIN32_WINNT 0x0501
#endif
#include <iphlpapi.h> /* should be after winsock2.h */
#ifdef ORIG_WIN32_WINNT
# undef _WIN32_WINNT
# define _WIN32_WINNT ORIG_WIN32_WINNT
# undef ORIG_WIN32_WINNT
#endif
#include <wincrypt.h>
#include <c-strcase.h>
#include <utimens.h> /* for fdutimens */
#include "w32.h"
#include <dirent.h>
#include "w32common.h"
#include "w32select.h"
#include "systime.h" /* for current_timespec, struct timespec */
#include "dispextern.h" /* for xstrcasecmp */
#include "coding.h" /* for Vlocale_coding_system */
#include "careadlinkat.h"
#include "allocator.h"
/* For Lisp_Process, serial_configure and serial_open. */
#include "process.h"
#include "systty.h"
typedef HRESULT (WINAPI * ShGetFolderPath_fn)
(IN HWND, IN int, IN HANDLE, IN DWORD, OUT char *);
static DWORD get_rid (PSID);
static int is_symlink (const char *);
static char * chase_symlinks (const char *);
static int enable_privilege (LPCTSTR, BOOL, TOKEN_PRIVILEGES *);
static int restore_privilege (TOKEN_PRIVILEGES *);
static BOOL WINAPI revert_to_self (void);
static int sys_access (const char *, int);
extern void *e_malloc (size_t);
extern int sys_select (int, SELECT_TYPE *, SELECT_TYPE *, SELECT_TYPE *,
const struct timespec *, const sigset_t *);
extern int sys_dup (int);
\f
/* Initialization states.
WARNING: If you add any more such variables for additional APIs,
you MUST add initialization for them to globals_of_w32
below. This is because these variables might get set
to non-NULL values during dumping, but the dumped Emacs
cannot reuse those values, because it could be run on a
different version of the OS, where API addresses are
different. */
static BOOL g_b_init_is_windows_9x;
static BOOL g_b_init_open_process_token;
static BOOL g_b_init_get_token_information;
static BOOL g_b_init_lookup_account_sid;
static BOOL g_b_init_get_sid_sub_authority;
static BOOL g_b_init_get_sid_sub_authority_count;
static BOOL g_b_init_get_security_info;
static BOOL g_b_init_get_file_security_w;
static BOOL g_b_init_get_file_security_a;
static BOOL g_b_init_get_security_descriptor_owner;
static BOOL g_b_init_get_security_descriptor_group;
static BOOL g_b_init_is_valid_sid;
static BOOL g_b_init_create_toolhelp32_snapshot;
static BOOL g_b_init_process32_first;
static BOOL g_b_init_process32_next;
static BOOL g_b_init_open_thread_token;
static BOOL g_b_init_impersonate_self;
static BOOL g_b_init_revert_to_self;
static BOOL g_b_init_get_process_memory_info;
static BOOL g_b_init_get_process_working_set_size;
static BOOL g_b_init_global_memory_status;
static BOOL g_b_init_global_memory_status_ex;
static BOOL g_b_init_get_length_sid;
static BOOL g_b_init_equal_sid;
static BOOL g_b_init_copy_sid;
static BOOL g_b_init_get_native_system_info;
static BOOL g_b_init_get_system_times;
static BOOL g_b_init_create_symbolic_link_w;
static BOOL g_b_init_create_symbolic_link_a;
static BOOL g_b_init_get_security_descriptor_dacl;
static BOOL g_b_init_convert_sd_to_sddl;
static BOOL g_b_init_convert_sddl_to_sd;
static BOOL g_b_init_is_valid_security_descriptor;
static BOOL g_b_init_set_file_security_w;
static BOOL g_b_init_set_file_security_a;
static BOOL g_b_init_set_named_security_info_w;
static BOOL g_b_init_set_named_security_info_a;
static BOOL g_b_init_get_adapters_info;
static BOOL g_b_init_get_adapters_addresses;
static BOOL g_b_init_reg_open_key_ex_w;
static BOOL g_b_init_reg_query_value_ex_w;
static BOOL g_b_init_expand_environment_strings_w;
static BOOL g_b_init_get_user_default_ui_language;
BOOL g_b_init_compare_string_w;
BOOL g_b_init_debug_break_process;
/*
BEGIN: Wrapper functions around OpenProcessToken
and other functions in advapi32.dll that are only
supported in Windows NT / 2k / XP
*/
/* ** Function pointer typedefs ** */
typedef BOOL (WINAPI * OpenProcessToken_Proc) (
HANDLE ProcessHandle,
DWORD DesiredAccess,
PHANDLE TokenHandle);
typedef BOOL (WINAPI * GetTokenInformation_Proc) (
HANDLE TokenHandle,
TOKEN_INFORMATION_CLASS TokenInformationClass,
LPVOID TokenInformation,
DWORD TokenInformationLength,
PDWORD ReturnLength);
typedef BOOL (WINAPI * GetProcessTimes_Proc) (
HANDLE process_handle,
LPFILETIME creation_time,
LPFILETIME exit_time,
LPFILETIME kernel_time,
LPFILETIME user_time);
GetProcessTimes_Proc get_process_times_fn = NULL;
#ifdef _UNICODE
const char * const LookupAccountSid_Name = "LookupAccountSidW";
#else
const char * const LookupAccountSid_Name = "LookupAccountSidA";
#endif
typedef BOOL (WINAPI * LookupAccountSid_Proc) (
LPCTSTR lpSystemName,
PSID Sid,
LPTSTR Name,
LPDWORD cbName,
LPTSTR DomainName,
LPDWORD cbDomainName,
PSID_NAME_USE peUse);
typedef PDWORD (WINAPI * GetSidSubAuthority_Proc) (
PSID pSid,
DWORD n);
typedef PUCHAR (WINAPI * GetSidSubAuthorityCount_Proc) (
PSID pSid);
typedef DWORD (WINAPI * GetSecurityInfo_Proc) (
HANDLE handle,
SE_OBJECT_TYPE ObjectType,
SECURITY_INFORMATION SecurityInfo,
PSID *ppsidOwner,
PSID *ppsidGroup,
PACL *ppDacl,
PACL *ppSacl,
PSECURITY_DESCRIPTOR *ppSecurityDescriptor);
typedef BOOL (WINAPI * GetFileSecurityW_Proc) (
LPCWSTR lpFileName,
SECURITY_INFORMATION RequestedInformation,
PSECURITY_DESCRIPTOR pSecurityDescriptor,
DWORD nLength,
LPDWORD lpnLengthNeeded);
typedef BOOL (WINAPI * GetFileSecurityA_Proc) (
LPCSTR lpFileName,
SECURITY_INFORMATION RequestedInformation,
PSECURITY_DESCRIPTOR pSecurityDescriptor,
DWORD nLength,
LPDWORD lpnLengthNeeded);
typedef BOOL (WINAPI *SetFileSecurityW_Proc) (
LPCWSTR lpFileName,
SECURITY_INFORMATION SecurityInformation,
PSECURITY_DESCRIPTOR pSecurityDescriptor);
typedef BOOL (WINAPI *SetFileSecurityA_Proc) (
LPCSTR lpFileName,
SECURITY_INFORMATION SecurityInformation,
PSECURITY_DESCRIPTOR pSecurityDescriptor);
typedef DWORD (WINAPI *SetNamedSecurityInfoW_Proc) (
LPCWSTR lpObjectName,
SE_OBJECT_TYPE ObjectType,
SECURITY_INFORMATION SecurityInformation,
PSID psidOwner,
PSID psidGroup,
PACL pDacl,
PACL pSacl);
typedef DWORD (WINAPI *SetNamedSecurityInfoA_Proc) (
LPCSTR lpObjectName,
SE_OBJECT_TYPE ObjectType,
SECURITY_INFORMATION SecurityInformation,
PSID psidOwner,
PSID psidGroup,
PACL pDacl,
PACL pSacl);
typedef BOOL (WINAPI * GetSecurityDescriptorOwner_Proc) (
PSECURITY_DESCRIPTOR pSecurityDescriptor,
PSID *pOwner,
LPBOOL lpbOwnerDefaulted);
typedef BOOL (WINAPI * GetSecurityDescriptorGroup_Proc) (
PSECURITY_DESCRIPTOR pSecurityDescriptor,
PSID *pGroup,
LPBOOL lpbGroupDefaulted);
typedef BOOL (WINAPI *GetSecurityDescriptorDacl_Proc) (
PSECURITY_DESCRIPTOR pSecurityDescriptor,
LPBOOL lpbDaclPresent,
PACL *pDacl,
LPBOOL lpbDaclDefaulted);
typedef BOOL (WINAPI * IsValidSid_Proc) (
PSID sid);
typedef HANDLE (WINAPI * CreateToolhelp32Snapshot_Proc) (
DWORD dwFlags,
DWORD th32ProcessID);
typedef BOOL (WINAPI * Process32First_Proc) (
HANDLE hSnapshot,
LPPROCESSENTRY32 lppe);
typedef BOOL (WINAPI * Process32Next_Proc) (
HANDLE hSnapshot,
LPPROCESSENTRY32 lppe);
typedef BOOL (WINAPI * OpenThreadToken_Proc) (
HANDLE ThreadHandle,
DWORD DesiredAccess,
BOOL OpenAsSelf,
PHANDLE TokenHandle);
typedef BOOL (WINAPI * ImpersonateSelf_Proc) (
SECURITY_IMPERSONATION_LEVEL ImpersonationLevel);
typedef BOOL (WINAPI * RevertToSelf_Proc) (void);
typedef BOOL (WINAPI * GetProcessMemoryInfo_Proc) (
HANDLE Process,
PPROCESS_MEMORY_COUNTERS ppsmemCounters,
DWORD cb);
typedef BOOL (WINAPI * GetProcessWorkingSetSize_Proc) (
HANDLE hProcess,
PSIZE_T lpMinimumWorkingSetSize,
PSIZE_T lpMaximumWorkingSetSize);
typedef BOOL (WINAPI * GlobalMemoryStatus_Proc) (
LPMEMORYSTATUS lpBuffer);
typedef BOOL (WINAPI * GlobalMemoryStatusEx_Proc) (
LPMEMORY_STATUS_EX lpBuffer);
typedef BOOL (WINAPI * CopySid_Proc) (
DWORD nDestinationSidLength,
PSID pDestinationSid,
PSID pSourceSid);
typedef BOOL (WINAPI * EqualSid_Proc) (
PSID pSid1,
PSID pSid2);
typedef DWORD (WINAPI * GetLengthSid_Proc) (
PSID pSid);
typedef void (WINAPI * GetNativeSystemInfo_Proc) (
LPSYSTEM_INFO lpSystemInfo);
typedef BOOL (WINAPI * GetSystemTimes_Proc) (
LPFILETIME lpIdleTime,
LPFILETIME lpKernelTime,
LPFILETIME lpUserTime);
typedef BOOLEAN (WINAPI *CreateSymbolicLinkW_Proc) (
LPCWSTR lpSymlinkFileName,
LPCWSTR lpTargetFileName,
DWORD dwFlags);
typedef BOOLEAN (WINAPI *CreateSymbolicLinkA_Proc) (
LPCSTR lpSymlinkFileName,
LPCSTR lpTargetFileName,
DWORD dwFlags);
typedef BOOL (WINAPI *ConvertStringSecurityDescriptorToSecurityDescriptor_Proc) (
LPCTSTR StringSecurityDescriptor,
DWORD StringSDRevision,
PSECURITY_DESCRIPTOR *SecurityDescriptor,
PULONG SecurityDescriptorSize);
typedef BOOL (WINAPI *ConvertSecurityDescriptorToStringSecurityDescriptor_Proc) (
PSECURITY_DESCRIPTOR SecurityDescriptor,
DWORD RequestedStringSDRevision,
SECURITY_INFORMATION SecurityInformation,
LPTSTR *StringSecurityDescriptor,
PULONG StringSecurityDescriptorLen);
typedef BOOL (WINAPI *IsValidSecurityDescriptor_Proc) (PSECURITY_DESCRIPTOR);
typedef DWORD (WINAPI *GetAdaptersInfo_Proc) (
PIP_ADAPTER_INFO pAdapterInfo,
PULONG pOutBufLen);
typedef DWORD (WINAPI *GetAdaptersAddresses_Proc) (
ULONG,
ULONG,
PVOID,
PIP_ADAPTER_ADDRESSES,
PULONG);
int (WINAPI *pMultiByteToWideChar)(UINT,DWORD,LPCSTR,int,LPWSTR,int);
int (WINAPI *pWideCharToMultiByte)(UINT,DWORD,LPCWSTR,int,LPSTR,int,LPCSTR,LPBOOL);
DWORD multiByteToWideCharFlags;
typedef LONG (WINAPI *RegOpenKeyExW_Proc) (HKEY,LPCWSTR,DWORD,REGSAM,PHKEY);
typedef LONG (WINAPI *RegQueryValueExW_Proc) (HKEY,LPCWSTR,LPDWORD,LPDWORD,LPBYTE,LPDWORD);
typedef DWORD (WINAPI *ExpandEnvironmentStringsW_Proc) (LPCWSTR,LPWSTR,DWORD);
typedef LANGID (WINAPI *GetUserDefaultUILanguage_Proc) (void);
/* ** A utility function ** */
static BOOL
is_windows_9x (void)
{
static BOOL s_b_ret = 0;
OSVERSIONINFO os_ver;
if (g_b_init_is_windows_9x == 0)
{
g_b_init_is_windows_9x = 1;
ZeroMemory (&os_ver, sizeof (OSVERSIONINFO));
os_ver.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
if (GetVersionEx (&os_ver))
{
s_b_ret = (os_ver.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS);
}
}
return s_b_ret;
}
static Lisp_Object ltime (ULONGLONG);
/* Get total user and system times for get-internal-run-time.
Returns a list of integers if the times are provided by the OS
(NT derivatives), otherwise it returns the result of current-time. */
Lisp_Object
w32_get_internal_run_time (void)
{
if (get_process_times_fn)
{
FILETIME create, exit, kernel, user;
HANDLE proc = GetCurrentProcess ();
if ((*get_process_times_fn) (proc, &create, &exit, &kernel, &user))
{
LARGE_INTEGER user_int, kernel_int, total;
user_int.LowPart = user.dwLowDateTime;
user_int.HighPart = user.dwHighDateTime;
kernel_int.LowPart = kernel.dwLowDateTime;
kernel_int.HighPart = kernel.dwHighDateTime;
total.QuadPart = user_int.QuadPart + kernel_int.QuadPart;
return ltime (total.QuadPart);
}
}
return Fcurrent_time ();
}
/* ** The wrapper functions ** */
static BOOL WINAPI
open_process_token (HANDLE ProcessHandle,
DWORD DesiredAccess,
PHANDLE TokenHandle)
{
static OpenProcessToken_Proc s_pfn_Open_Process_Token = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
return FALSE;
}
if (g_b_init_open_process_token == 0)
{
g_b_init_open_process_token = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Open_Process_Token = (OpenProcessToken_Proc)
get_proc_addr (hm_advapi32, "OpenProcessToken");
}
if (s_pfn_Open_Process_Token == NULL)
{
return FALSE;
}
return (
s_pfn_Open_Process_Token (
ProcessHandle,
DesiredAccess,
TokenHandle)
);
}
static BOOL WINAPI
get_token_information (HANDLE TokenHandle,
TOKEN_INFORMATION_CLASS TokenInformationClass,
LPVOID TokenInformation,
DWORD TokenInformationLength,
PDWORD ReturnLength)
{
static GetTokenInformation_Proc s_pfn_Get_Token_Information = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
return FALSE;
}
if (g_b_init_get_token_information == 0)
{
g_b_init_get_token_information = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Get_Token_Information = (GetTokenInformation_Proc)
get_proc_addr (hm_advapi32, "GetTokenInformation");
}
if (s_pfn_Get_Token_Information == NULL)
{
return FALSE;
}
return (
s_pfn_Get_Token_Information (
TokenHandle,
TokenInformationClass,
TokenInformation,
TokenInformationLength,
ReturnLength)
);
}
static BOOL WINAPI
lookup_account_sid (LPCTSTR lpSystemName,
PSID Sid,
LPTSTR Name,
LPDWORD cbName,
LPTSTR DomainName,
LPDWORD cbDomainName,
PSID_NAME_USE peUse)
{
static LookupAccountSid_Proc s_pfn_Lookup_Account_Sid = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
return FALSE;
}
if (g_b_init_lookup_account_sid == 0)
{
g_b_init_lookup_account_sid = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Lookup_Account_Sid = (LookupAccountSid_Proc)
get_proc_addr (hm_advapi32, LookupAccountSid_Name);
}
if (s_pfn_Lookup_Account_Sid == NULL)
{
return FALSE;
}
return (
s_pfn_Lookup_Account_Sid (
lpSystemName,
Sid,
Name,
cbName,
DomainName,
cbDomainName,
peUse)
);
}
static PDWORD WINAPI
get_sid_sub_authority (PSID pSid, DWORD n)
{
static GetSidSubAuthority_Proc s_pfn_Get_Sid_Sub_Authority = NULL;
static DWORD zero = 0U;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
return &zero;
}
if (g_b_init_get_sid_sub_authority == 0)
{
g_b_init_get_sid_sub_authority = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Get_Sid_Sub_Authority = (GetSidSubAuthority_Proc)
get_proc_addr (hm_advapi32, "GetSidSubAuthority");
}
if (s_pfn_Get_Sid_Sub_Authority == NULL)
{
return &zero;
}
return (s_pfn_Get_Sid_Sub_Authority (pSid, n));
}
static PUCHAR WINAPI
get_sid_sub_authority_count (PSID pSid)
{
static GetSidSubAuthorityCount_Proc s_pfn_Get_Sid_Sub_Authority_Count = NULL;
static UCHAR zero = 0U;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
return &zero;
}
if (g_b_init_get_sid_sub_authority_count == 0)
{
g_b_init_get_sid_sub_authority_count = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Get_Sid_Sub_Authority_Count = (GetSidSubAuthorityCount_Proc)
get_proc_addr (hm_advapi32, "GetSidSubAuthorityCount");
}
if (s_pfn_Get_Sid_Sub_Authority_Count == NULL)
{
return &zero;
}
return (s_pfn_Get_Sid_Sub_Authority_Count (pSid));
}
static DWORD WINAPI
get_security_info (HANDLE handle,
SE_OBJECT_TYPE ObjectType,
SECURITY_INFORMATION SecurityInfo,
PSID *ppsidOwner,
PSID *ppsidGroup,
PACL *ppDacl,
PACL *ppSacl,
PSECURITY_DESCRIPTOR *ppSecurityDescriptor)
{
static GetSecurityInfo_Proc s_pfn_Get_Security_Info = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
return FALSE;
}
if (g_b_init_get_security_info == 0)
{
g_b_init_get_security_info = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Get_Security_Info = (GetSecurityInfo_Proc)
get_proc_addr (hm_advapi32, "GetSecurityInfo");
}
if (s_pfn_Get_Security_Info == NULL)
{
return FALSE;
}
return (s_pfn_Get_Security_Info (handle, ObjectType, SecurityInfo,
ppsidOwner, ppsidGroup, ppDacl, ppSacl,
ppSecurityDescriptor));
}
static BOOL WINAPI
get_file_security (const char *lpFileName,
SECURITY_INFORMATION RequestedInformation,
PSECURITY_DESCRIPTOR pSecurityDescriptor,
DWORD nLength,
LPDWORD lpnLengthNeeded)
{
static GetFileSecurityA_Proc s_pfn_Get_File_SecurityA = NULL;
static GetFileSecurityW_Proc s_pfn_Get_File_SecurityW = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
errno = ENOTSUP;
return FALSE;
}
if (w32_unicode_filenames)
{
wchar_t filename_w[MAX_PATH];
if (g_b_init_get_file_security_w == 0)
{
g_b_init_get_file_security_w = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Get_File_SecurityW = (GetFileSecurityW_Proc)
get_proc_addr (hm_advapi32, "GetFileSecurityW");
}
if (s_pfn_Get_File_SecurityW == NULL)
{
errno = ENOTSUP;
return FALSE;
}
filename_to_utf16 (lpFileName, filename_w);
return (s_pfn_Get_File_SecurityW (filename_w, RequestedInformation,
pSecurityDescriptor, nLength,
lpnLengthNeeded));
}
else
{
char filename_a[MAX_PATH];
if (g_b_init_get_file_security_a == 0)
{
g_b_init_get_file_security_a = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Get_File_SecurityA = (GetFileSecurityA_Proc)
get_proc_addr (hm_advapi32, "GetFileSecurityA");
}
if (s_pfn_Get_File_SecurityA == NULL)
{
errno = ENOTSUP;
return FALSE;
}
filename_to_ansi (lpFileName, filename_a);
return (s_pfn_Get_File_SecurityA (filename_a, RequestedInformation,
pSecurityDescriptor, nLength,
lpnLengthNeeded));
}
}
static BOOL WINAPI
set_file_security (const char *lpFileName,
SECURITY_INFORMATION SecurityInformation,
PSECURITY_DESCRIPTOR pSecurityDescriptor)
{
static SetFileSecurityW_Proc s_pfn_Set_File_SecurityW = NULL;
static SetFileSecurityA_Proc s_pfn_Set_File_SecurityA = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
errno = ENOTSUP;
return FALSE;
}
if (w32_unicode_filenames)
{
wchar_t filename_w[MAX_PATH];
if (g_b_init_set_file_security_w == 0)
{
g_b_init_set_file_security_w = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Set_File_SecurityW = (SetFileSecurityW_Proc)
get_proc_addr (hm_advapi32, "SetFileSecurityW");
}
if (s_pfn_Set_File_SecurityW == NULL)
{
errno = ENOTSUP;
return FALSE;
}
filename_to_utf16 (lpFileName, filename_w);
return (s_pfn_Set_File_SecurityW (filename_w, SecurityInformation,
pSecurityDescriptor));
}
else
{
char filename_a[MAX_PATH];
if (g_b_init_set_file_security_a == 0)
{
g_b_init_set_file_security_a = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Set_File_SecurityA = (SetFileSecurityA_Proc)
get_proc_addr (hm_advapi32, "SetFileSecurityA");
}
if (s_pfn_Set_File_SecurityA == NULL)
{
errno = ENOTSUP;
return FALSE;
}
filename_to_ansi (lpFileName, filename_a);
return (s_pfn_Set_File_SecurityA (filename_a, SecurityInformation,
pSecurityDescriptor));
}
}
static DWORD WINAPI
set_named_security_info (LPCTSTR lpObjectName,
SE_OBJECT_TYPE ObjectType,
SECURITY_INFORMATION SecurityInformation,
PSID psidOwner,
PSID psidGroup,
PACL pDacl,
PACL pSacl)
{
static SetNamedSecurityInfoW_Proc s_pfn_Set_Named_Security_InfoW = NULL;
static SetNamedSecurityInfoA_Proc s_pfn_Set_Named_Security_InfoA = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
errno = ENOTSUP;
return ENOTSUP;
}
if (w32_unicode_filenames)
{
wchar_t filename_w[MAX_PATH];
if (g_b_init_set_named_security_info_w == 0)
{
g_b_init_set_named_security_info_w = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Set_Named_Security_InfoW = (SetNamedSecurityInfoW_Proc)
get_proc_addr (hm_advapi32, "SetNamedSecurityInfoW");
}
if (s_pfn_Set_Named_Security_InfoW == NULL)
{
errno = ENOTSUP;
return ENOTSUP;
}
filename_to_utf16 (lpObjectName, filename_w);
return (s_pfn_Set_Named_Security_InfoW (filename_w, ObjectType,
SecurityInformation, psidOwner,
psidGroup, pDacl, pSacl));
}
else
{
char filename_a[MAX_PATH];
if (g_b_init_set_named_security_info_a == 0)
{
g_b_init_set_named_security_info_a = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Set_Named_Security_InfoA = (SetNamedSecurityInfoA_Proc)
get_proc_addr (hm_advapi32, "SetNamedSecurityInfoA");
}
if (s_pfn_Set_Named_Security_InfoA == NULL)
{
errno = ENOTSUP;
return ENOTSUP;
}
filename_to_ansi (lpObjectName, filename_a);
return (s_pfn_Set_Named_Security_InfoA (filename_a, ObjectType,
SecurityInformation, psidOwner,
psidGroup, pDacl, pSacl));
}
}
static BOOL WINAPI
get_security_descriptor_owner (PSECURITY_DESCRIPTOR pSecurityDescriptor,
PSID *pOwner,
LPBOOL lpbOwnerDefaulted)
{
static GetSecurityDescriptorOwner_Proc s_pfn_Get_Security_Descriptor_Owner = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
errno = ENOTSUP;
return FALSE;
}
if (g_b_init_get_security_descriptor_owner == 0)
{
g_b_init_get_security_descriptor_owner = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Get_Security_Descriptor_Owner = (GetSecurityDescriptorOwner_Proc)
get_proc_addr (hm_advapi32, "GetSecurityDescriptorOwner");
}
if (s_pfn_Get_Security_Descriptor_Owner == NULL)
{
errno = ENOTSUP;
return FALSE;
}
return (s_pfn_Get_Security_Descriptor_Owner (pSecurityDescriptor, pOwner,
lpbOwnerDefaulted));
}
static BOOL WINAPI
get_security_descriptor_group (PSECURITY_DESCRIPTOR pSecurityDescriptor,
PSID *pGroup,
LPBOOL lpbGroupDefaulted)
{
static GetSecurityDescriptorGroup_Proc s_pfn_Get_Security_Descriptor_Group = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
errno = ENOTSUP;
return FALSE;
}
if (g_b_init_get_security_descriptor_group == 0)
{
g_b_init_get_security_descriptor_group = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Get_Security_Descriptor_Group = (GetSecurityDescriptorGroup_Proc)
get_proc_addr (hm_advapi32, "GetSecurityDescriptorGroup");
}
if (s_pfn_Get_Security_Descriptor_Group == NULL)
{
errno = ENOTSUP;
return FALSE;
}
return (s_pfn_Get_Security_Descriptor_Group (pSecurityDescriptor, pGroup,
lpbGroupDefaulted));
}
static BOOL WINAPI
get_security_descriptor_dacl (PSECURITY_DESCRIPTOR pSecurityDescriptor,
LPBOOL lpbDaclPresent,
PACL *pDacl,
LPBOOL lpbDaclDefaulted)
{
static GetSecurityDescriptorDacl_Proc s_pfn_Get_Security_Descriptor_Dacl = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
errno = ENOTSUP;
return FALSE;
}
if (g_b_init_get_security_descriptor_dacl == 0)
{
g_b_init_get_security_descriptor_dacl = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Get_Security_Descriptor_Dacl = (GetSecurityDescriptorDacl_Proc)
get_proc_addr (hm_advapi32, "GetSecurityDescriptorDacl");
}
if (s_pfn_Get_Security_Descriptor_Dacl == NULL)
{
errno = ENOTSUP;
return FALSE;
}
return (s_pfn_Get_Security_Descriptor_Dacl (pSecurityDescriptor,
lpbDaclPresent, pDacl,
lpbDaclDefaulted));
}
static BOOL WINAPI
is_valid_sid (PSID sid)
{
static IsValidSid_Proc s_pfn_Is_Valid_Sid = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
return FALSE;
}
if (g_b_init_is_valid_sid == 0)
{
g_b_init_is_valid_sid = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Is_Valid_Sid = (IsValidSid_Proc)
get_proc_addr (hm_advapi32, "IsValidSid");
}
if (s_pfn_Is_Valid_Sid == NULL)
{
return FALSE;
}
return (s_pfn_Is_Valid_Sid (sid));
}
static BOOL WINAPI
equal_sid (PSID sid1, PSID sid2)
{
static EqualSid_Proc s_pfn_Equal_Sid = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
return FALSE;
}
if (g_b_init_equal_sid == 0)
{
g_b_init_equal_sid = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Equal_Sid = (EqualSid_Proc)
get_proc_addr (hm_advapi32, "EqualSid");
}
if (s_pfn_Equal_Sid == NULL)
{
return FALSE;
}
return (s_pfn_Equal_Sid (sid1, sid2));
}
static DWORD WINAPI
get_length_sid (PSID sid)
{
static GetLengthSid_Proc s_pfn_Get_Length_Sid = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
return 0;
}
if (g_b_init_get_length_sid == 0)
{
g_b_init_get_length_sid = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Get_Length_Sid = (GetLengthSid_Proc)
get_proc_addr (hm_advapi32, "GetLengthSid");
}
if (s_pfn_Get_Length_Sid == NULL)
{
return 0;
}
return (s_pfn_Get_Length_Sid (sid));
}
static BOOL WINAPI
copy_sid (DWORD destlen, PSID dest, PSID src)
{
static CopySid_Proc s_pfn_Copy_Sid = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
return FALSE;
}
if (g_b_init_copy_sid == 0)
{
g_b_init_copy_sid = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Copy_Sid = (CopySid_Proc)
get_proc_addr (hm_advapi32, "CopySid");
}
if (s_pfn_Copy_Sid == NULL)
{
return FALSE;
}
return (s_pfn_Copy_Sid (destlen, dest, src));
}
/*
END: Wrapper functions around OpenProcessToken
and other functions in advapi32.dll that are only
supported in Windows NT / 2k / XP
*/
static void WINAPI
get_native_system_info (LPSYSTEM_INFO lpSystemInfo)
{
static GetNativeSystemInfo_Proc s_pfn_Get_Native_System_Info = NULL;
if (is_windows_9x () != TRUE)
{
if (g_b_init_get_native_system_info == 0)
{
g_b_init_get_native_system_info = 1;
s_pfn_Get_Native_System_Info = (GetNativeSystemInfo_Proc)
get_proc_addr (GetModuleHandle ("kernel32.dll"),
"GetNativeSystemInfo");
}
if (s_pfn_Get_Native_System_Info != NULL)
s_pfn_Get_Native_System_Info (lpSystemInfo);
}
else
lpSystemInfo->dwNumberOfProcessors = -1;
}
static BOOL WINAPI
get_system_times (LPFILETIME lpIdleTime,
LPFILETIME lpKernelTime,
LPFILETIME lpUserTime)
{
static GetSystemTimes_Proc s_pfn_Get_System_times = NULL;
if (is_windows_9x () == TRUE)
{
return FALSE;
}
if (g_b_init_get_system_times == 0)
{
g_b_init_get_system_times = 1;
s_pfn_Get_System_times = (GetSystemTimes_Proc)
get_proc_addr (GetModuleHandle ("kernel32.dll"),
"GetSystemTimes");
}
if (s_pfn_Get_System_times == NULL)
return FALSE;
return (s_pfn_Get_System_times (lpIdleTime, lpKernelTime, lpUserTime));
}
static BOOLEAN WINAPI
create_symbolic_link (LPCSTR lpSymlinkFilename,
LPCSTR lpTargetFileName,
DWORD dwFlags)
{
static CreateSymbolicLinkW_Proc s_pfn_Create_Symbolic_LinkW = NULL;
static CreateSymbolicLinkA_Proc s_pfn_Create_Symbolic_LinkA = NULL;
BOOLEAN retval;
if (is_windows_9x () == TRUE)
{
errno = ENOSYS;
return 0;
}
if (w32_unicode_filenames)
{
wchar_t symfn_w[MAX_PATH], tgtfn_w[MAX_PATH];
if (g_b_init_create_symbolic_link_w == 0)
{
g_b_init_create_symbolic_link_w = 1;
s_pfn_Create_Symbolic_LinkW = (CreateSymbolicLinkW_Proc)
get_proc_addr (GetModuleHandle ("kernel32.dll"),
"CreateSymbolicLinkW");
}
if (s_pfn_Create_Symbolic_LinkW == NULL)
{
errno = ENOSYS;
return 0;
}
filename_to_utf16 (lpSymlinkFilename, symfn_w);
filename_to_utf16 (lpTargetFileName, tgtfn_w);
retval = s_pfn_Create_Symbolic_LinkW (symfn_w, tgtfn_w, dwFlags);
/* If we were denied creation of the symlink, try again after
enabling the SeCreateSymbolicLinkPrivilege for our process. */
if (!retval)
{
TOKEN_PRIVILEGES priv_current;
if (enable_privilege (SE_CREATE_SYMBOLIC_LINK_NAME, TRUE,
&priv_current))
{
retval = s_pfn_Create_Symbolic_LinkW (symfn_w, tgtfn_w, dwFlags);
restore_privilege (&priv_current);
revert_to_self ();
}
}
}
else
{
char symfn_a[MAX_PATH], tgtfn_a[MAX_PATH];
if (g_b_init_create_symbolic_link_a == 0)
{
g_b_init_create_symbolic_link_a = 1;
s_pfn_Create_Symbolic_LinkA = (CreateSymbolicLinkA_Proc)
get_proc_addr (GetModuleHandle ("kernel32.dll"),
"CreateSymbolicLinkA");
}
if (s_pfn_Create_Symbolic_LinkA == NULL)
{
errno = ENOSYS;
return 0;
}
filename_to_ansi (lpSymlinkFilename, symfn_a);
filename_to_ansi (lpTargetFileName, tgtfn_a);
retval = s_pfn_Create_Symbolic_LinkA (symfn_a, tgtfn_a, dwFlags);
/* If we were denied creation of the symlink, try again after
enabling the SeCreateSymbolicLinkPrivilege for our process. */
if (!retval)
{
TOKEN_PRIVILEGES priv_current;
if (enable_privilege (SE_CREATE_SYMBOLIC_LINK_NAME, TRUE,
&priv_current))
{
retval = s_pfn_Create_Symbolic_LinkA (symfn_a, tgtfn_a, dwFlags);
restore_privilege (&priv_current);
revert_to_self ();
}
}
}
return retval;
}
static BOOL WINAPI
is_valid_security_descriptor (PSECURITY_DESCRIPTOR pSecurityDescriptor)
{
static IsValidSecurityDescriptor_Proc s_pfn_Is_Valid_Security_Descriptor_Proc = NULL;
if (is_windows_9x () == TRUE)
{
errno = ENOTSUP;
return FALSE;
}
if (g_b_init_is_valid_security_descriptor == 0)
{
g_b_init_is_valid_security_descriptor = 1;
s_pfn_Is_Valid_Security_Descriptor_Proc = (IsValidSecurityDescriptor_Proc)
get_proc_addr (GetModuleHandle ("Advapi32.dll"),
"IsValidSecurityDescriptor");
}
if (s_pfn_Is_Valid_Security_Descriptor_Proc == NULL)
{
errno = ENOTSUP;
return FALSE;
}
return s_pfn_Is_Valid_Security_Descriptor_Proc (pSecurityDescriptor);
}
static BOOL WINAPI
convert_sd_to_sddl (PSECURITY_DESCRIPTOR SecurityDescriptor,
DWORD RequestedStringSDRevision,
SECURITY_INFORMATION SecurityInformation,
LPTSTR *StringSecurityDescriptor,
PULONG StringSecurityDescriptorLen)
{
static ConvertSecurityDescriptorToStringSecurityDescriptor_Proc s_pfn_Convert_SD_To_SDDL = NULL;
BOOL retval;
if (is_windows_9x () == TRUE)
{
errno = ENOTSUP;
return FALSE;
}
if (g_b_init_convert_sd_to_sddl == 0)
{
g_b_init_convert_sd_to_sddl = 1;
#ifdef _UNICODE
s_pfn_Convert_SD_To_SDDL =
(ConvertSecurityDescriptorToStringSecurityDescriptor_Proc)
get_proc_addr (GetModuleHandle ("Advapi32.dll"),
"ConvertSecurityDescriptorToStringSecurityDescriptorW");
#else
s_pfn_Convert_SD_To_SDDL =
(ConvertSecurityDescriptorToStringSecurityDescriptor_Proc)
get_proc_addr (GetModuleHandle ("Advapi32.dll"),
"ConvertSecurityDescriptorToStringSecurityDescriptorA");
#endif
}
if (s_pfn_Convert_SD_To_SDDL == NULL)
{
errno = ENOTSUP;
return FALSE;
}
retval = s_pfn_Convert_SD_To_SDDL (SecurityDescriptor,
RequestedStringSDRevision,
SecurityInformation,
StringSecurityDescriptor,
StringSecurityDescriptorLen);
return retval;
}
static BOOL WINAPI
convert_sddl_to_sd (LPCTSTR StringSecurityDescriptor,
DWORD StringSDRevision,
PSECURITY_DESCRIPTOR *SecurityDescriptor,
PULONG SecurityDescriptorSize)
{
static ConvertStringSecurityDescriptorToSecurityDescriptor_Proc s_pfn_Convert_SDDL_To_SD = NULL;
BOOL retval;
if (is_windows_9x () == TRUE)
{
errno = ENOTSUP;
return FALSE;
}
if (g_b_init_convert_sddl_to_sd == 0)
{
g_b_init_convert_sddl_to_sd = 1;
#ifdef _UNICODE
s_pfn_Convert_SDDL_To_SD =
(ConvertStringSecurityDescriptorToSecurityDescriptor_Proc)
get_proc_addr (GetModuleHandle ("Advapi32.dll"),
"ConvertStringSecurityDescriptorToSecurityDescriptorW");
#else
s_pfn_Convert_SDDL_To_SD =
(ConvertStringSecurityDescriptorToSecurityDescriptor_Proc)
get_proc_addr (GetModuleHandle ("Advapi32.dll"),
"ConvertStringSecurityDescriptorToSecurityDescriptorA");
#endif
}
if (s_pfn_Convert_SDDL_To_SD == NULL)
{
errno = ENOTSUP;
return FALSE;
}
retval = s_pfn_Convert_SDDL_To_SD (StringSecurityDescriptor,
StringSDRevision,
SecurityDescriptor,
SecurityDescriptorSize);
return retval;
}
static DWORD WINAPI
get_adapters_info (PIP_ADAPTER_INFO pAdapterInfo, PULONG pOutBufLen)
{
static GetAdaptersInfo_Proc s_pfn_Get_Adapters_Info = NULL;
HMODULE hm_iphlpapi = NULL;
if (is_windows_9x () == TRUE)
return ERROR_NOT_SUPPORTED;
if (g_b_init_get_adapters_info == 0)
{
g_b_init_get_adapters_info = 1;
hm_iphlpapi = LoadLibrary ("Iphlpapi.dll");
if (hm_iphlpapi)
s_pfn_Get_Adapters_Info = (GetAdaptersInfo_Proc)
get_proc_addr (hm_iphlpapi, "GetAdaptersInfo");
}
if (s_pfn_Get_Adapters_Info == NULL)
return ERROR_NOT_SUPPORTED;
return s_pfn_Get_Adapters_Info (pAdapterInfo, pOutBufLen);
}
static DWORD WINAPI
get_adapters_addresses (ULONG family, PIP_ADAPTER_ADDRESSES pAdapterAddresses, PULONG pOutBufLen)
{
static GetAdaptersAddresses_Proc s_pfn_Get_Adapters_Addresses = NULL;
HMODULE hm_iphlpapi = NULL;
if (is_windows_9x () == TRUE)
return ERROR_NOT_SUPPORTED;
if (g_b_init_get_adapters_addresses == 0)
{
g_b_init_get_adapters_addresses = 1;
hm_iphlpapi = LoadLibrary ("Iphlpapi.dll");
if (hm_iphlpapi)
s_pfn_Get_Adapters_Addresses = (GetAdaptersAddresses_Proc)
get_proc_addr (hm_iphlpapi, "GetAdaptersAddresses");
}
if (s_pfn_Get_Adapters_Addresses == NULL)
return ERROR_NOT_SUPPORTED;
ULONG flags = GAA_FLAG_SKIP_ANYCAST
| GAA_FLAG_SKIP_MULTICAST
| GAA_FLAG_SKIP_DNS_SERVER;
return s_pfn_Get_Adapters_Addresses (family, flags, NULL, pAdapterAddresses, pOutBufLen);
}
static LONG WINAPI
reg_open_key_ex_w (HKEY hkey, LPCWSTR lpSubKey, DWORD ulOptions,
REGSAM samDesired, PHKEY phkResult)
{
static RegOpenKeyExW_Proc s_pfn_Reg_Open_Key_Ex_w = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
return ERROR_NOT_SUPPORTED;
if (g_b_init_reg_open_key_ex_w == 0)
{
g_b_init_reg_open_key_ex_w = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
if (hm_advapi32)
s_pfn_Reg_Open_Key_Ex_w = (RegOpenKeyExW_Proc)
get_proc_addr (hm_advapi32, "RegOpenKeyExW");
}
if (s_pfn_Reg_Open_Key_Ex_w == NULL)
return ERROR_NOT_SUPPORTED;
return s_pfn_Reg_Open_Key_Ex_w (hkey, lpSubKey, ulOptions,
samDesired, phkResult);
}
static LONG WINAPI
reg_query_value_ex_w (HKEY hkey, LPCWSTR lpValueName, LPDWORD lpReserved,
LPDWORD lpType, LPBYTE lpData, LPDWORD lpcbData)
{
static RegQueryValueExW_Proc s_pfn_Reg_Query_Value_Ex_w = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
return ERROR_NOT_SUPPORTED;
if (g_b_init_reg_query_value_ex_w == 0)
{
g_b_init_reg_query_value_ex_w = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
if (hm_advapi32)
s_pfn_Reg_Query_Value_Ex_w = (RegQueryValueExW_Proc)
get_proc_addr (hm_advapi32, "RegQueryValueExW");
}
if (s_pfn_Reg_Query_Value_Ex_w == NULL)
return ERROR_NOT_SUPPORTED;
return s_pfn_Reg_Query_Value_Ex_w (hkey, lpValueName, lpReserved,
lpType, lpData, lpcbData);
}
static DWORD WINAPI
expand_environment_strings_w (LPCWSTR lpSrc, LPWSTR lpDst, DWORD nSize)
{
static ExpandEnvironmentStringsW_Proc s_pfn_Expand_Environment_Strings_w = NULL;
HMODULE hm_kernel32 = NULL;
if (is_windows_9x () == TRUE)
return ERROR_NOT_SUPPORTED;
if (g_b_init_expand_environment_strings_w == 0)
{
g_b_init_expand_environment_strings_w = 1;
hm_kernel32 = LoadLibrary ("Kernel32.dll");
if (hm_kernel32)
s_pfn_Expand_Environment_Strings_w = (ExpandEnvironmentStringsW_Proc)
get_proc_addr (hm_kernel32, "ExpandEnvironmentStringsW");
}
if (s_pfn_Expand_Environment_Strings_w == NULL)
{
errno = ENOSYS;
return FALSE;
}
return s_pfn_Expand_Environment_Strings_w (lpSrc, lpDst, nSize);
}
static LANGID WINAPI
get_user_default_ui_language (void)
{
static GetUserDefaultUILanguage_Proc s_pfn_GetUserDefaultUILanguage = NULL;
HMODULE hm_kernel32 = NULL;
if (is_windows_9x () == TRUE)
return 0;
if (g_b_init_get_user_default_ui_language == 0)
{
g_b_init_get_user_default_ui_language = 1;
hm_kernel32 = LoadLibrary ("Kernel32.dll");
if (hm_kernel32)
s_pfn_GetUserDefaultUILanguage = (GetUserDefaultUILanguage_Proc)
get_proc_addr (hm_kernel32, "GetUserDefaultUILanguage");
}
if (s_pfn_GetUserDefaultUILanguage == NULL)
return 0;
return s_pfn_GetUserDefaultUILanguage ();
}
\f
/* Return 1 if P is a valid pointer to an object of size SIZE. Return
0 if P is NOT a valid pointer. Return -1 if we cannot validate P.
This is called from alloc.c:valid_pointer_p. */
int
w32_valid_pointer_p (void *p, int size)
{
SIZE_T done;
HANDLE h = OpenProcess (PROCESS_VM_READ, FALSE, GetCurrentProcessId ());
if (h)
{
unsigned char *buf = alloca (size);
int retval = ReadProcessMemory (h, p, buf, size, &done);
CloseHandle (h);
return retval;
}
else
return -1;
}
\f
/* Here's an overview of how the Windows build supports file names
that cannot be encoded by the current system codepage.
From the POV of Lisp and layers of C code above the functions here,
Emacs on Windows pretends that its file names are encoded in UTF-8;
see encode_file and decode_file on coding.c. Any file name that is
passed as a unibyte string to C functions defined here is assumed
to be in UTF-8 encoding. Any file name returned by functions
defined here must be in UTF-8 encoding, with only a few exceptions
reserved for a couple of special cases. (Be sure to use
MAX_UTF8_PATH for char arrays that store UTF-8 encoded file names,
as they can be much longer than MAX_PATH!)
The UTF-8 encoded file names cannot be passed to system APIs, as
Windows does not support that. Therefore, they are converted
either to UTF-16 or to the ANSI codepage, depending on the value of
w32-unicode-filenames, before calling any system APIs or CRT library
functions. The default value of that variable is determined by the
OS on which Emacs runs: nil on Windows 9X and t otherwise, but the
user can change that default (although I don't see why would she
want to).
The 4 functions defined below, filename_to_utf16, filename_to_ansi,
filename_from_utf16, and filename_from_ansi, are the workhorses of
these conversions. They rely on Windows native APIs
MultiByteToWideChar and WideCharToMultiByte; we cannot use
functions from coding.c here, because they allocate memory, which
is a bad idea on the level of libc, which is what the functions
here emulate. (If you worry about performance due to constant
conversion back and forth from UTF-8 to UTF-16, then don't: first,
it was measured to take only a few microseconds on a not-so-fast
machine, and second, that's exactly what the ANSI APIs we used
before did anyway, because they are just thin wrappers around the
Unicode APIs.)
The variables file-name-coding-system and default-file-name-coding-system
still exist, but are actually used only when a file name needs to
be converted to the ANSI codepage. This happens all the time when
w32-unicode-filenames is nil, but can also happen from time to time
when it is t. Otherwise, these variables have no effect on file-name
encoding when w32-unicode-filenames is t; this is similar to
selection-coding-system.
This arrangement works very well, but it has a few gotchas and
limitations:
. Lisp code that encodes or decodes file names manually should
normally use 'utf-8' as the coding-system on Windows,
disregarding file-name-coding-system. This is a somewhat
unpleasant consequence, but it cannot be avoided. Fortunately,
very few Lisp packages need to do that.
More generally, passing to library functions (e.g., fopen or
opendir) file names already encoded in the ANSI codepage is
explicitly *verboten*, as all those functions, as shadowed and
emulated here, assume they will receive UTF-8 encoded file names.
For the same reasons, no CRT function or Win32 API can be called
directly in Emacs sources, without either converting the file
names from UTF-8 to UTF-16 or ANSI codepage, or going through
some shadowing function defined here.
. Environment variables stored in Vprocess_environment are encoded
in the ANSI codepage, so if getenv/egetenv is used for a variable
whose value is a file name or a list of directories, it needs to
be converted to UTF-8, before it is used as argument to functions
or decoded into a Lisp string.
. File names passed to external libraries, like the image libraries
and GnuTLS, need special handling. These libraries generally
don't support UTF-16 or UTF-8 file names, so they must get file
names encoded in the ANSI codepage. To facilitate using these
libraries with file names that are not encodable in the ANSI
codepage, use the function ansi_encode_filename, which will try
to use the short 8+3 alias of a file name if that file name is
not encodable in the ANSI codepage. See image.c and gnutls.c for
examples of how this should be done.
. Running subprocesses in non-ASCII directories and with non-ASCII
file arguments is limited to the current codepage (even though
Emacs is perfectly capable of finding an executable program file
in a directory whose name cannot be encoded in the current
codepage). This is because the command-line arguments are
encoded _before_ they get to the w32-specific level, and the
encoding is not known in advance (it doesn't have to be the
current ANSI codepage), so w32proc.c functions cannot re-encode
them in UTF-16. This should be fixed, but will also require
changes in cmdproxy. The current limitation is not terribly bad
anyway, since very few, if any, Windows console programs that are
likely to be invoked by Emacs support UTF-16 encoded command
lines.
. For similar reasons, server.el and emacsclient are also limited
to the current ANSI codepage for now.
. Emacs itself can only handle command-line arguments encoded in
the current codepage.
. Turning on w32-unicode-filename on Windows 9X (if it at all
works) requires UNICOWS.DLL, which is thus a requirement even in
non-GUI sessions, something that we previously avoided. */
\f
/* Converting file names from UTF-8 to either UTF-16 or the ANSI
codepage defined by file-name-coding-system. */
/* Current codepage for encoding file names. */
static int file_name_codepage;
/* Initialize the codepage used for decoding file names. This is
needed to undo the value recorded during dumping, which might not
be correct when we run the dumped Emacs. */
void
w32_init_file_name_codepage (void)
{
file_name_codepage = CP_ACP;
w32_ansi_code_page = CP_ACP;
}
/* Produce a Windows ANSI codepage suitable for encoding file names.
Return the information about that codepage in CP_INFO. */
int
codepage_for_filenames (CPINFO *cp_info)
{
/* A simple cache to avoid calling GetCPInfo every time we need to
encode/decode a file name. The file-name encoding is not
supposed to be changed too frequently, if ever. */
static Lisp_Object last_file_name_encoding;
static CPINFO cp;
Lisp_Object current_encoding;
current_encoding = Vfile_name_coding_system;
if (NILP (current_encoding))
current_encoding = Vdefault_file_name_coding_system;
if (!EQ (last_file_name_encoding, current_encoding)
|| NILP (last_file_name_encoding))
{
/* Default to the current ANSI codepage. */
file_name_codepage = w32_ansi_code_page;
if (!NILP (current_encoding))
{
char *cpname = SSDATA (SYMBOL_NAME (current_encoding));
char *cp = NULL, *end;
int cpnum;
if (strncmp (cpname, "cp", 2) == 0)
cp = cpname + 2;
else if (strncmp (cpname, "windows-", 8) == 0)
cp = cpname + 8;
if (cp)
{
end = cp;
cpnum = strtol (cp, &end, 10);
if (cpnum && *end == '\0' && end - cp >= 2)
file_name_codepage = cpnum;
}
}
if (!file_name_codepage)
file_name_codepage = CP_ACP; /* CP_ACP = 0, but let's not assume that */
if (!GetCPInfo (file_name_codepage, &cp))
{
file_name_codepage = CP_ACP;
if (!GetCPInfo (file_name_codepage, &cp))
emacs_abort ();
}
/* Cache the new value. */
last_file_name_encoding = current_encoding;
}
if (cp_info)
*cp_info = cp;
return file_name_codepage;
}
int
filename_to_utf16 (const char *fn_in, wchar_t *fn_out)
{
int result = pMultiByteToWideChar (CP_UTF8, multiByteToWideCharFlags, fn_in,
-1, fn_out, MAX_PATH);
if (!result)
{
DWORD err = GetLastError ();
switch (err)
{
case ERROR_INVALID_FLAGS:
case ERROR_INVALID_PARAMETER:
errno = EINVAL;
break;
case ERROR_INSUFFICIENT_BUFFER:
case ERROR_NO_UNICODE_TRANSLATION:
default:
errno = ENOENT;
break;
}
return -1;
}
return 0;
}
int
filename_from_utf16 (const wchar_t *fn_in, char *fn_out)
{
int result = pWideCharToMultiByte (CP_UTF8, 0, fn_in, -1,
fn_out, MAX_UTF8_PATH, NULL, NULL);
if (!result)
{
DWORD err = GetLastError ();
switch (err)
{
case ERROR_INVALID_FLAGS:
case ERROR_INVALID_PARAMETER:
errno = EINVAL;
break;
case ERROR_INSUFFICIENT_BUFFER:
case ERROR_NO_UNICODE_TRANSLATION:
default:
errno = ENOENT;
break;
}
return -1;
}
return 0;
}
int
filename_to_ansi (const char *fn_in, char *fn_out)
{
wchar_t fn_utf16[MAX_PATH];
if (filename_to_utf16 (fn_in, fn_utf16) == 0)
{
int result;
int codepage = codepage_for_filenames (NULL);
result = pWideCharToMultiByte (codepage, 0, fn_utf16, -1,
fn_out, MAX_PATH, NULL, NULL);
if (!result)
{
DWORD err = GetLastError ();
switch (err)
{
case ERROR_INVALID_FLAGS:
case ERROR_INVALID_PARAMETER:
errno = EINVAL;
break;
case ERROR_INSUFFICIENT_BUFFER:
case ERROR_NO_UNICODE_TRANSLATION:
default:
errno = ENOENT;
break;
}
return -1;
}
return 0;
}
return -1;
}
int
filename_from_ansi (const char *fn_in, char *fn_out)
{
wchar_t fn_utf16[MAX_PATH];
int codepage = codepage_for_filenames (NULL);
int result = pMultiByteToWideChar (codepage, multiByteToWideCharFlags, fn_in,
-1, fn_utf16, MAX_PATH);
if (!result)
{
DWORD err = GetLastError ();
switch (err)
{
case ERROR_INVALID_FLAGS:
case ERROR_INVALID_PARAMETER:
errno = EINVAL;
break;
case ERROR_INSUFFICIENT_BUFFER:
case ERROR_NO_UNICODE_TRANSLATION:
default:
errno = ENOENT;
break;
}
return -1;
}
return filename_from_utf16 (fn_utf16, fn_out);
}
\f
/* The directory where we started, in UTF-8. */
static char startup_dir[MAX_UTF8_PATH];
/* Get the current working directory. The caller must arrange for CWD
to be allocated with enough space to hold a 260-char directory name
in UTF-8. IOW, the space should be at least MAX_UTF8_PATH bytes. */
static void
w32_get_current_directory (char *cwd)
{
/* FIXME: Do we need to resolve possible symlinks in startup_dir?
Does it matter anywhere in Emacs? */
if (w32_unicode_filenames)
{
wchar_t wstartup_dir[MAX_PATH];
if (!GetCurrentDirectoryW (MAX_PATH, wstartup_dir))
emacs_abort ();
filename_from_utf16 (wstartup_dir, cwd);
}
else
{
char astartup_dir[MAX_PATH];
if (!GetCurrentDirectoryA (MAX_PATH, astartup_dir))
emacs_abort ();
filename_from_ansi (astartup_dir, cwd);
}
}
/* For external callers. Used by 'main' in emacs.c. */
void
w32_init_current_directory (void)
{
w32_get_current_directory (startup_dir);
}
/* Return the original directory where Emacs started. */
char *
getcwd (char *dir, int dirsize)
{
if (!dirsize)
{
errno = EINVAL;
return NULL;
}
if (dirsize <= strlen (startup_dir))
{
errno = ERANGE;
return NULL;
}
#if 0
if (GetCurrentDirectory (MAXPATHLEN, dir) > 0)
return dir;
return NULL;
#else
/* Emacs doesn't actually change directory itself, it stays in the
same directory where it was started. */
strcpy (dir, startup_dir);
return dir;
#endif
}
/* Emulate getloadavg. */
struct load_sample {
time_t sample_time;
ULONGLONG idle;
ULONGLONG kernel;
ULONGLONG user;
};
/* Number of processors on this machine. */
static unsigned num_of_processors;
/* We maintain 1-sec samples for the last 16 minutes in a circular buffer. */
static struct load_sample samples[16*60];
static int first_idx = -1, last_idx = -1;
static int max_idx = ARRAYELTS (samples);
static int
buf_next (int from)
{
int next_idx = from + 1;
if (next_idx >= max_idx)
next_idx = 0;
return next_idx;
}
static int
buf_prev (int from)
{
int prev_idx = from - 1;
if (prev_idx < 0)
prev_idx = max_idx - 1;
return prev_idx;
}
unsigned
w32_get_nproc (void)
{
SYSTEM_INFO sysinfo;
/* Initialize the number of processors on this machine. */
if (num_of_processors <= 0)
{
get_native_system_info (&sysinfo);
num_of_processors = sysinfo.dwNumberOfProcessors;
if (num_of_processors <= 0)
{
GetSystemInfo (&sysinfo);
num_of_processors = sysinfo.dwNumberOfProcessors;
}
if (num_of_processors <= 0)
num_of_processors = 1;
}
return num_of_processors;
}
/* Emulate Gnulib's 'num_processors'. We cannot use the Gnulib
version because it unconditionally calls APIs that aren't available
on old MS-Windows versions. */
unsigned long
num_processors (enum nproc_query query)
{
/* We ignore QUERY. */
return w32_get_nproc ();
}
static void
sample_system_load (ULONGLONG *idle, ULONGLONG *kernel, ULONGLONG *user)
{
FILETIME ft_idle, ft_user, ft_kernel;
(void) w32_get_nproc ();
/* TODO: Take into account threads that are ready to run, by
sampling the "\System\Processor Queue Length" performance
counter. The code below accounts only for threads that are
actually running. */
if (get_system_times (&ft_idle, &ft_kernel, &ft_user))
{
ULARGE_INTEGER uidle, ukernel, uuser;
memcpy (&uidle, &ft_idle, sizeof (ft_idle));
memcpy (&ukernel, &ft_kernel, sizeof (ft_kernel));
memcpy (&uuser, &ft_user, sizeof (ft_user));
*idle = uidle.QuadPart;
*kernel = ukernel.QuadPart;
*user = uuser.QuadPart;
}
else
{
*idle = 0;
*kernel = 0;
*user = 0;
}
}
/* Produce the load average for a given time interval, using the
samples in the samples[] array. WHICH can be 0, 1, or 2, meaning
1-minute, 5-minute, or 15-minute average, respectively. */
static double
getavg (int which)
{
double retval = -1.0;
double tdiff;
int idx;
double span = (which == 0 ? 1.0 : (which == 1 ? 5.0 : 15.0)) * 60;
time_t now = samples[last_idx].sample_time;
if (first_idx != last_idx)
{
for (idx = buf_prev (last_idx); ; idx = buf_prev (idx))
{
tdiff = difftime (now, samples[idx].sample_time);
if (tdiff >= span - 2*DBL_EPSILON*now)
{
long double sys =
samples[last_idx].kernel + samples[last_idx].user
- (samples[idx].kernel + samples[idx].user);
long double idl = samples[last_idx].idle - samples[idx].idle;
retval = (1.0 - idl / sys) * num_of_processors;
break;
}
if (idx == first_idx)
break;
}
}
return retval;
}
int
getloadavg (double loadavg[], int nelem)
{
int elem;
ULONGLONG idle, kernel, user;
time_t now = time (NULL);
/* If system time jumped back for some reason, delete all samples
whose time is later than the current wall-clock time. This
prevents load average figures from becoming frozen for prolonged
periods of time, when system time is reset backwards. */
if (last_idx >= 0)
{
while (difftime (now, samples[last_idx].sample_time) < -1.0)
{
if (last_idx == first_idx)
{
first_idx = last_idx = -1;
break;
}
last_idx = buf_prev (last_idx);
}
}
/* Store another sample. We ignore samples that are less than 1 sec
apart. */
if (last_idx < 0
|| (difftime (now, samples[last_idx].sample_time)
>= 1.0 - 2*DBL_EPSILON*now))
{
sample_system_load (&idle, &kernel, &user);
last_idx = buf_next (last_idx);
samples[last_idx].sample_time = now;
samples[last_idx].idle = idle;
samples[last_idx].kernel = kernel;
samples[last_idx].user = user;
/* If the buffer has more that 15 min worth of samples, discard
the old ones. */
if (first_idx == -1)
first_idx = last_idx;
while (first_idx != last_idx
&& (difftime (now, samples[first_idx].sample_time)
>= 15.0*60 + 2*DBL_EPSILON*now))
first_idx = buf_next (first_idx);
}
for (elem = 0; elem < nelem; elem++)
{
double avg = getavg (elem);
if (avg < 0)
break;
loadavg[elem] = avg;
}
/* Always return at least one element, otherwise load-average
returns nil, and Lisp programs might decide we cannot measure
system load. For example, jit-lock-stealth-load's defcustom
might decide that feature is "unsupported". */
if (elem == 0)
loadavg[elem++] = 0.09; /* < display-time-load-average-threshold */
return elem;
}
/* Emulate getpwuid, getpwnam and others. */
#define PASSWD_FIELD_SIZE 256
static char dflt_passwd_name[PASSWD_FIELD_SIZE];
static char dflt_passwd_passwd[PASSWD_FIELD_SIZE];
static char dflt_passwd_gecos[PASSWD_FIELD_SIZE];
static char dflt_passwd_dir[MAX_UTF8_PATH];
static char dflt_passwd_shell[MAX_UTF8_PATH];
static struct passwd dflt_passwd =
{
dflt_passwd_name,
dflt_passwd_passwd,
0,
0,
0,
dflt_passwd_gecos,
dflt_passwd_dir,
dflt_passwd_shell,
};
static char dflt_group_name[GNLEN+1];
static struct group dflt_group =
{
/* When group information is not available, we return this as the
group for all files. */
dflt_group_name,
0,
};
unsigned
getuid (void)
{
return dflt_passwd.pw_uid;
}
unsigned
geteuid (void)
{
/* I could imagine arguing for checking to see whether the user is
in the Administrators group and returning a UID of 0 for that
case, but I don't know how wise that would be in the long run. */
return getuid ();
}
unsigned
getgid (void)
{
return dflt_passwd.pw_gid;
}
unsigned
getegid (void)
{
return getgid ();
}
struct passwd *
getpwuid (unsigned uid)
{
if (uid == dflt_passwd.pw_uid)
return &dflt_passwd;
return NULL;
}
struct group *
getgrgid (gid_t gid)
{
if (gid == dflt_passwd.pw_gid)
return &dflt_group;
return NULL;
}
struct passwd *
getpwnam (char *name)
{
struct passwd *pw;
pw = getpwuid (getuid ());
if (!pw)
return pw;
if (xstrcasecmp (name, pw->pw_name))
{
/* Mimic what init_editfns does with these environment
variables, so that the likes of ~USER is recognized by
expand-file-name even if $LOGNAME gives a name different from
the real username produced by the process token. */
char *logname = getenv ("LOGNAME");
char *username = getenv ("USERNAME");
if ((logname || username)
&& xstrcasecmp (name, logname ? logname : username) == 0)
{
static struct passwd alias_user;
static char alias_name[PASSWD_FIELD_SIZE];
memcpy (&alias_user, &dflt_passwd, sizeof dflt_passwd);
alias_name[0] = '\0';
strncat (alias_name, logname ? logname : username,
PASSWD_FIELD_SIZE - 1);
alias_user.pw_name = alias_name;
pw = &alias_user;
}
else
return NULL;
}
return pw;
}
static void
init_user_info (void)
{
/* Find the user's real name by opening the process token and
looking up the name associated with the user-sid in that token.
Use the relative portion of the identifier authority value from
the user-sid as the user id value (same for group id using the
primary group sid from the process token). */
char uname[UNLEN+1], gname[GNLEN+1], domain[1025];
DWORD ulength = sizeof (uname), dlength = sizeof (domain), needed;
DWORD glength = sizeof (gname);
HANDLE token = NULL;
SID_NAME_USE user_type;
unsigned char *buf = NULL;
DWORD blen = 0;
TOKEN_USER user_token;
TOKEN_PRIMARY_GROUP group_token;
BOOL result;
result = open_process_token (GetCurrentProcess (), TOKEN_QUERY, &token);
if (result)
{
result = get_token_information (token, TokenUser, NULL, 0, &blen);
if (!result && GetLastError () == ERROR_INSUFFICIENT_BUFFER)
{
buf = xmalloc (blen);
result = get_token_information (token, TokenUser,
(LPVOID)buf, blen, &needed);
if (result)
{
memcpy (&user_token, buf, sizeof (user_token));
result = lookup_account_sid (NULL, user_token.User.Sid,
uname, &ulength,
domain, &dlength, &user_type);
}
}
else
result = FALSE;
}
if (result)
{
strcpy (dflt_passwd.pw_name, uname);
/* Determine a reasonable uid value. */
if (xstrcasecmp ("administrator", uname) == 0)
{
dflt_passwd.pw_uid = 500; /* well-known Administrator uid */
dflt_passwd.pw_gid = 513; /* well-known None gid */
}
else
{
/* Use the last sub-authority value of the RID, the relative
portion of the SID, as user/group ID. */
dflt_passwd.pw_uid = get_rid (user_token.User.Sid);
/* Get group id and name. */
result = get_token_information (token, TokenPrimaryGroup,
(LPVOID)buf, blen, &needed);
if (!result && GetLastError () == ERROR_INSUFFICIENT_BUFFER)
{
buf = xrealloc (buf, blen = needed);
result = get_token_information (token, TokenPrimaryGroup,
(LPVOID)buf, blen, &needed);
}
if (result)
{
memcpy (&group_token, buf, sizeof (group_token));
dflt_passwd.pw_gid = get_rid (group_token.PrimaryGroup);
dlength = sizeof (domain);
/* If we can get at the real Primary Group name, use that.
Otherwise, the default group name was already set to
"None" in globals_of_w32. */
if (lookup_account_sid (NULL, group_token.PrimaryGroup,
gname, &glength, NULL, &dlength,
&user_type))
strcpy (dflt_group_name, gname);
}
else
dflt_passwd.pw_gid = dflt_passwd.pw_uid;
}
}
/* If security calls are not supported (presumably because we
are running under Windows 9X), fallback to this: */
else if (GetUserName (uname, &ulength))
{
strcpy (dflt_passwd.pw_name, uname);
if (xstrcasecmp ("administrator", uname) == 0)
dflt_passwd.pw_uid = 0;
else
dflt_passwd.pw_uid = 123;
dflt_passwd.pw_gid = dflt_passwd.pw_uid;
}
else
{
strcpy (dflt_passwd.pw_name, "unknown");
dflt_passwd.pw_uid = 123;
dflt_passwd.pw_gid = 123;
}
dflt_group.gr_gid = dflt_passwd.pw_gid;
/* Set dir and shell from environment variables. */
if (w32_unicode_filenames)
{
wchar_t *home = _wgetenv (L"HOME");
wchar_t *shell = _wgetenv (L"SHELL");
/* Ensure HOME and SHELL are defined. */
if (home == NULL)
emacs_abort ();
if (shell == NULL)
emacs_abort ();
filename_from_utf16 (home, dflt_passwd.pw_dir);
filename_from_utf16 (shell, dflt_passwd.pw_shell);
}
else
{
char *home = getenv ("HOME");
char *shell = getenv ("SHELL");
if (home == NULL)
emacs_abort ();
if (shell == NULL)
emacs_abort ();
filename_from_ansi (home, dflt_passwd.pw_dir);
filename_from_ansi (shell, dflt_passwd.pw_shell);
}
xfree (buf);
if (token)
CloseHandle (token);
}
static HCRYPTPROV w32_crypto_hprov;
static int
w32_init_crypt_random (void)
{
if (!CryptAcquireContext (&w32_crypto_hprov, NULL, NULL, PROV_RSA_FULL,
CRYPT_VERIFYCONTEXT | CRYPT_SILENT))
{
DebPrint (("CryptAcquireContext failed with error %x\n",
GetLastError ()));
w32_crypto_hprov = 0;
return -1;
}
return 0;
}
int
w32_init_random (void *buf, ptrdiff_t buflen)
{
if (!w32_crypto_hprov)
w32_init_crypt_random ();
if (w32_crypto_hprov)
{
if (CryptGenRandom (w32_crypto_hprov, buflen, (BYTE *)buf))
return 0;
}
return -1;
}
/* MS-Windows 'rand' produces separate identical series for each
thread, so we replace it with our version. */
/* Algorithm AS183: An Efficient and Portable Pseudo-random Number
Generator, by B.A. Wichmann, I.D. Hill. AS, v31, No. 2 (1982). */
static int ix = 3172, iy = 9814, iz = 20125;
#define RAND_MAX_X 30269
#define RAND_MAX_Y 30307
#define RAND_MAX_Z 30323
static int
rand_as183 (void)
{
ix = (171 * ix) % RAND_MAX_X;
iy = (172 * iy) % RAND_MAX_Y;
iz = (170 * iz) % RAND_MAX_Z;
return (ix + iy + iz) & 0x7fff;
}
int
random (void)
{
/* rand_as183 () gives us 15 random bits...hack together 30 bits for
Emacs with 32-bit EMACS_INT, and at least 31 bit for wider EMACS_INT. */
#if EMACS_INT_MAX > INT_MAX
return ((rand_as183 () << 30) | (rand_as183 () << 15) | rand_as183 ());
#else
return ((rand_as183 () << 15) | rand_as183 ());
#endif
}
void
srandom (int seed)
{
srand (seed);
ix = rand () % RAND_MAX_X;
iy = rand () % RAND_MAX_Y;
iz = rand () % RAND_MAX_Z;
}
/* Emulate explicit_bzero. This is to avoid using the Gnulib version,
because it calls SecureZeroMemory at will, disregarding systems
older than Windows XP, which didn't have that function. We want to
avoid having that function as dependency in builds that need to
support systems older than Windows XP, otherwise Emacs will refuse
to start on those systems. */
void
explicit_bzero (void *buf, size_t len)
{
#if _WIN32_WINNT >= 0x0501
/* We are compiling for XP or newer, most probably with MinGW64.
We can use SecureZeroMemory. */
SecureZeroMemory (buf, len);
#else
memset (buf, 0, len);
/* Compiler barrier. */
asm volatile ("" ::: "memory");
#endif
}
/* Return the maximum length in bytes of a multibyte character
sequence encoded in the current ANSI codepage. This is required to
correctly walk the encoded file names one character at a time. */
static int
max_filename_mbslen (void)
{
CPINFO cp_info;
codepage_for_filenames (&cp_info);
return cp_info.MaxCharSize;
}
/* Normalize filename by converting in-place all of its path
separators to the separator specified by PATH_SEP. */
static void
normalize_filename (register char *fp, char path_sep)
{
char *p2;
/* Always lower-case drive letters a-z, even if the filesystem
preserves case in filenames.
This is so filenames can be compared by string comparison
functions that are case-sensitive. Even case-preserving filesystems
do not distinguish case in drive letters. */
p2 = fp + 1;
if (*p2 == ':' && *fp >= 'A' && *fp <= 'Z')
{
*fp += 'a' - 'A';
fp += 2;
}
while (*fp)
{
if ((*fp == '/' || *fp == '\\') && *fp != path_sep)
*fp = path_sep;
fp++;
}
}
/* Destructively turn backslashes into slashes. */
void
dostounix_filename (register char *p)
{
normalize_filename (p, '/');
}
/* Destructively turn slashes into backslashes. */
void
unixtodos_filename (register char *p)
{
normalize_filename (p, '\\');
}
/* Remove all CR's that are followed by a LF.
(From msdos.c...probably should figure out a way to share it,
although this code isn't going to ever change.) */
static int
crlf_to_lf (register int n, register char *buf)
{
unsigned char *np = (unsigned char *)buf;
unsigned char *startp = np;
char *endp = buf + n;
if (n == 0)
return n;
while (buf < endp - 1)
{
if (*buf == 0x0d)
{
if (*(++buf) != 0x0a)
*np++ = 0x0d;
}
else
*np++ = *buf++;
}
if (buf < endp)
*np++ = *buf++;
return np - startp;
}
/* Parse the root part of file name, if present. Return length and
optionally store pointer to char after root. */
static int
parse_root (const char * name, const char ** pPath)
{
const char * start = name;
if (name == NULL)
return 0;
/* find the root name of the volume if given */
if (isalpha (name[0]) && name[1] == ':')
{
/* skip past drive specifier */
name += 2;
if (IS_DIRECTORY_SEP (name[0]))
name++;
}
else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1]))
{
int slashes = 2;
name += 2;
do
{
if (IS_DIRECTORY_SEP (*name) && --slashes == 0)
break;
name++;
}
while ( *name );
if (IS_DIRECTORY_SEP (name[0]))
name++;
}
if (pPath)
*pPath = name;
return name - start;
}
/* Get long base name for name; name is assumed to be absolute. */
static int
get_long_basename (char * name, char * buf, int size)
{
HANDLE dir_handle = INVALID_HANDLE_VALUE;
char fname_utf8[MAX_UTF8_PATH];
int len = 0;
int cstatus = -1;
/* Must be valid filename, no wild cards or other invalid characters. */
if (strpbrk (name, "*?|<>\""))
return 0;
if (w32_unicode_filenames)
{
wchar_t fname_utf16[MAX_PATH];
WIN32_FIND_DATAW find_data_wide;
filename_to_utf16 (name, fname_utf16);
dir_handle = FindFirstFileW (fname_utf16, &find_data_wide);
if (dir_handle != INVALID_HANDLE_VALUE)
cstatus = filename_from_utf16 (find_data_wide.cFileName, fname_utf8);
}
else
{
char fname_ansi[MAX_PATH];
WIN32_FIND_DATAA find_data_ansi;
filename_to_ansi (name, fname_ansi);
/* If the ANSI name includes ? characters, it is not encodable
in the ANSI codepage. In that case, we deliver the question
marks to the caller; calling FindFirstFileA in this case
could return some unrelated file name in the same
directory. */
if (_mbspbrk (fname_ansi, "?"))
{
/* Find the basename of fname_ansi. */
char *p = strrchr (fname_ansi, '\\');
if (!p)
p = fname_ansi;
else
p++;
cstatus = filename_from_ansi (p, fname_utf8);
}
else
{
dir_handle = FindFirstFileA (fname_ansi, &find_data_ansi);
if (dir_handle != INVALID_HANDLE_VALUE)
cstatus = filename_from_ansi (find_data_ansi.cFileName, fname_utf8);
}
}
if (cstatus == 0 && (len = strlen (fname_utf8)) < size)
memcpy (buf, fname_utf8, len + 1);
else
len = 0;
if (dir_handle != INVALID_HANDLE_VALUE)
FindClose (dir_handle);
return len;
}
/* Get long name for file, if possible (assumed to be absolute). */
BOOL
w32_get_long_filename (const char * name, char * buf, int size)
{
char * o = buf;
char * p;
const char * q;
char full[ MAX_UTF8_PATH ];
int len;
len = strlen (name);
if (len >= MAX_UTF8_PATH)
return FALSE;
/* Use local copy for destructive modification. */
memcpy (full, name, len+1);
unixtodos_filename (full);
/* Copy root part verbatim. */
len = parse_root (full, (const char **)&p);
memcpy (o, full, len);
o += len;
*o = '\0';
size -= len;
while (p != NULL && *p)
{
q = p;
p = strchr (q, '\\');
if (p) *p = '\0';
len = get_long_basename (full, o, size);
if (len > 0)
{
o += len;
size -= len;
if (p != NULL)
{
*p++ = '\\';
if (size < 2)
return FALSE;
*o++ = '\\';
size--;
*o = '\0';
}
}
else
return FALSE;
}
return TRUE;
}
unsigned int
w32_get_short_filename (const char * name, char * buf, int size)
{
if (w32_unicode_filenames)
{
wchar_t name_utf16[MAX_PATH], short_name[MAX_PATH];
unsigned int retval;
filename_to_utf16 (name, name_utf16);
retval = GetShortPathNameW (name_utf16, short_name, size);
if (retval && retval < size)
filename_from_utf16 (short_name, buf);
return retval;
}
else
{
char name_ansi[MAX_PATH];
filename_to_ansi (name, name_ansi);
return GetShortPathNameA (name_ansi, buf, size);
}
}
/* Re-encode FILENAME, a UTF-8 encoded unibyte string, using the
MS-Windows ANSI codepage. If FILENAME includes characters not
supported by the ANSI codepage, return the 8+3 alias of FILENAME,
if it exists. This is needed because the w32 build wants to
support file names outside of the system locale, but image
libraries typically don't support wide (a.k.a. "Unicode") APIs
required for that. */
Lisp_Object
ansi_encode_filename (Lisp_Object filename)
{
Lisp_Object encoded_filename;
char fname[MAX_PATH];
filename_to_ansi (SSDATA (filename), fname);
if (_mbspbrk (fname, "?"))
{
char shortname[MAX_PATH];
if (w32_get_short_filename (SSDATA (filename), shortname, MAX_PATH))
{
dostounix_filename (shortname);
encoded_filename = build_string (shortname);
}
else
encoded_filename = build_unibyte_string (fname);
}
else
encoded_filename = build_unibyte_string (fname);
return encoded_filename;
}
static int
is_unc_volume (const char *filename)
{
const char *ptr = filename;
if (!IS_DIRECTORY_SEP (ptr[0]) || !IS_DIRECTORY_SEP (ptr[1]) || !ptr[2])
return 0;
if (strpbrk (ptr + 2, "*?|<>\"\\/"))
return 0;
return 1;
}
/* Emulate the Posix unsetenv. */
int
unsetenv (const char *name)
{
char *var;
size_t name_len;
if (name == NULL || *name == '\0' || strchr (name, '=') != NULL)
{
errno = EINVAL;
return -1;
}
name_len = strlen (name);
/* MS docs says an environment variable cannot be longer than 32K. */
if (name_len > 32767)
{
errno = ENOMEM;
return 0;
}
/* It is safe to use 'alloca' with 32K size, since the stack is at
least 2MB, and we set it to 8MB in the link command line. */
var = alloca (name_len + 2);
memcpy (var, name, name_len);
var[name_len++] = '=';
var[name_len] = '\0';
return _putenv (var);
}
/* MS _putenv doesn't support removing a variable when the argument
does not include the '=' character, so we fix that here. */
int
sys_putenv (char *str)
{
const char *const name_end = strchr (str, '=');
if (name_end == NULL)
{
/* Remove the variable from the environment. */
return unsetenv (str);
}
if (strncmp (str, "TZ=<", 4) == 0)
{
/* MS-Windows does not support POSIX.1-2001 angle-bracket TZ
abbreviation syntax. Convert to POSIX.1-1988 syntax if possible,
and to the undocumented placeholder "ZZZ" otherwise. */
bool supported_abbr = true;
for (char *p = str + 4; *p; p++)
{
if (('0' <= *p && *p <= '9') || *p == '-' || *p == '+')
supported_abbr = false;
else if (*p == '>')
{
ptrdiff_t abbrlen;
if (supported_abbr)
{
abbrlen = p - (str + 4);
memmove (str + 3, str + 4, abbrlen);
}
else
{
abbrlen = 3;
memset (str + 3, 'Z', abbrlen);
}
memmove (str + 3 + abbrlen, p + 1, strlen (p));
break;
}
}
}
return _putenv (str);
}
#define REG_ROOT "SOFTWARE\\GNU\\Emacs"
LPBYTE
w32_get_resource (const char *key, LPDWORD lpdwtype)
{
LPBYTE lpvalue;
HKEY hrootkey = NULL;
DWORD cbData;
/* Check both the current user and the local machine to see if
we have any resources. */
if (RegOpenKeyEx (HKEY_CURRENT_USER, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS)
{
lpvalue = NULL;
if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS
&& (lpvalue = xmalloc (cbData)) != NULL
&& RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS)
{
RegCloseKey (hrootkey);
return (lpvalue);
}
xfree (lpvalue);
RegCloseKey (hrootkey);
}
if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS)
{
lpvalue = NULL;
if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS
&& (lpvalue = xmalloc (cbData)) != NULL
&& RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS)
{
RegCloseKey (hrootkey);
return (lpvalue);
}
xfree (lpvalue);
RegCloseKey (hrootkey);
}
return (NULL);
}
/* The argv[] array holds ANSI-encoded strings, and so this function
works with ANS_encoded strings. */
void
init_environment (char ** argv)
{
static const char * const tempdirs[] = {
"$TMPDIR", "$TEMP", "$TMP", "c:/"
};
int i;
const int imax = ARRAYELTS (tempdirs);
/* Implementation note: This function explicitly works with ANSI
file names, not with UTF-8 encoded file names. This is because
this function pushes variables into the Emacs's environment, and
the environment variables are always assumed to be in the
locale-specific encoding. Do NOT call any functions that accept
UTF-8 file names from this function! */
/* Make sure they have a usable $TMPDIR. Many Emacs functions use
temporary files and assume "/tmp" if $TMPDIR is unset, which
will break on DOS/Windows. Refuse to work if we cannot find
a directory, not even "c:/", usable for that purpose. */
for (i = 0; i < imax ; i++)
{
const char *tmp = tempdirs[i];
if (*tmp == '$')
tmp = getenv (tmp + 1);
/* Note that `access' can lie to us if the directory resides on a
read-only filesystem, like CD-ROM or a write-protected floppy.
The only way to be really sure is to actually create a file and
see if it succeeds. But I think that's too much to ask. */
/* MSVCRT's _access crashes with D_OK, so we use our replacement. */
if (tmp && sys_access (tmp, D_OK) == 0)
{
char * var = alloca (strlen (tmp) + 8);
sprintf (var, "TMPDIR=%s", tmp);
_putenv (strdup (var));
break;
}
}
if (i >= imax)
cmd_error_internal
(Fcons (Qerror,
Fcons (build_string ("no usable temporary directories found!!"),
Qnil)),
"While setting TMPDIR: ");
/* Check for environment variables and use registry settings if they
don't exist. Fallback on default values where applicable. */
{
int i;
LPBYTE lpval;
DWORD dwType;
char locale_name[32];
char default_home[MAX_PATH];
int appdata = 0;
static const struct env_entry
{
const char * name;
const char * def_value;
} dflt_envvars[] =
{
/* If the default value is NULL, we will use the value from the
outside environment or the Registry, but will not push the
variable into the Emacs environment if it is defined neither
in the Registry nor in the outside environment. */
{"HOME", "C:/"},
{"PRELOAD_WINSOCK", NULL},
{"emacs_dir", "C:/emacs"},
{"EMACSLOADPATH", NULL},
{"SHELL", "cmdproxy.exe"}, /* perhaps it is somewhere on PATH */
{"EMACSDATA", NULL},
{"EMACSPATH", NULL},
{"INFOPATH", NULL},
{"EMACSDOC", NULL},
{"TERM", "cmd"},
{"LANG", NULL},
};
#define N_ENV_VARS ARRAYELTS (dflt_envvars)
/* We need to copy dflt_envvars[] and work on the copy because we
don't want the dumped Emacs to inherit the values of
environment variables we saw during dumping (which could be on
a different system). The defaults above must be left intact. */
struct env_entry env_vars[N_ENV_VARS];
for (i = 0; i < N_ENV_VARS; i++)
env_vars[i] = dflt_envvars[i];
/* For backwards compatibility, check if a .emacs file exists in C:/
If not, then we can try to default to the appdata directory under the
user's profile, which is more likely to be writable. */
if (sys_access ("C:/.emacs", F_OK) != 0)
{
HRESULT profile_result;
/* Dynamically load ShGetFolderPath, as it won't exist on versions
of Windows 95 and NT4 that have not been updated to include
MSIE 5. */
ShGetFolderPath_fn get_folder_path;
get_folder_path = (ShGetFolderPath_fn)
get_proc_addr (GetModuleHandle ("shell32.dll"),
"SHGetFolderPathA");
if (get_folder_path != NULL)
{
profile_result = get_folder_path (NULL, CSIDL_APPDATA, NULL,
0, default_home);
/* If we can't get the appdata dir, revert to old behavior. */
if (profile_result == S_OK)
{
env_vars[0].def_value = default_home;
appdata = 1;
}
}
}
/* Get default locale info and use it for LANG. */
if (GetLocaleInfo (LOCALE_USER_DEFAULT,
LOCALE_SABBREVLANGNAME | LOCALE_USE_CP_ACP,
locale_name, sizeof (locale_name)))
{
/* Microsoft are migrating away of locale IDs, replacing them
with locale names, such as "en-US", and are therefore
deprecating the APIs which use LCID etc. As part of that
deprecation, they don't bother inventing LCID and LANGID
codes for new locales and language/culture combinations;
instead, those get LCID of 0xC000 and LANGID of 0x2000, for
which the LCID/LANGID oriented APIs return "ZZZ" as the
"language name". Such "language name" is useless for our
purposes. So we instead use the default UI language, in the
hope of getting something usable. */
if (strcmp (locale_name, "ZZZ") == 0)
{
LANGID lang_id = get_user_default_ui_language ();
if (lang_id != 0)
{
/* Disregard the sorting order differences between cultures. */
LCID def_lcid = MAKELCID (lang_id, SORT_DEFAULT);
char locale_name_def[32];
if (GetLocaleInfo (def_lcid,
LOCALE_SABBREVLANGNAME | LOCALE_USE_CP_ACP,
locale_name_def, sizeof (locale_name_def)))
strcpy (locale_name, locale_name_def);
}
}
for (i = 0; i < N_ENV_VARS; i++)
{
if (strcmp (env_vars[i].name, "LANG") == 0)
{
env_vars[i].def_value = locale_name;
break;
}
}
}
#define SET_ENV_BUF_SIZE (4 * MAX_PATH) /* to cover EMACSLOADPATH */
/* Treat emacs_dir specially: set it unconditionally based on our
location. */
{
char *p;
char modname[MAX_PATH];
if (!GetModuleFileNameA (NULL, modname, MAX_PATH))
emacs_abort ();
if ((p = _mbsrchr (modname, '\\')) == NULL)
emacs_abort ();
*p = 0;
if ((p = _mbsrchr (modname, '\\'))
/* From bin means installed Emacs, from src means uninstalled. */
&& (xstrcasecmp (p, "\\bin") == 0 || xstrcasecmp (p, "\\src") == 0))
{
char buf[SET_ENV_BUF_SIZE];
int within_build_tree = xstrcasecmp (p, "\\src") == 0;
*p = 0;
for (p = modname; *p; p = CharNext (p))
if (*p == '\\') *p = '/';
_snprintf (buf, sizeof (buf)-1, "emacs_dir=%s", modname);
_putenv (strdup (buf));
/* If we are running from the Posix-like build tree, define
SHELL to point to our own cmdproxy. The loop below will
then disregard PATH_EXEC and the default value. */
if (within_build_tree)
{
_snprintf (buf, sizeof (buf) - 1,
"SHELL=%s/nt/cmdproxy.exe", modname);
_putenv (strdup (buf));
}
}
}
for (i = 0; i < N_ENV_VARS; i++)
{
if (!getenv (env_vars[i].name))
{
int dont_free = 0;
char bufc[SET_ENV_BUF_SIZE];
if ((lpval = w32_get_resource (env_vars[i].name, &dwType)) == NULL
/* Also ignore empty environment variables. */
|| *lpval == 0)
{
xfree (lpval);
dont_free = 1;
if (strcmp (env_vars[i].name, "SHELL") == 0)
{
/* Look for cmdproxy.exe in every directory in
PATH_EXEC. FIXME: This does not find cmdproxy
in nt/ when we run uninstalled. */
char fname[MAX_PATH];
const char *pstart = PATH_EXEC, *pend;
do {
pend = _mbschr (pstart, ';');
if (!pend)
pend = pstart + strlen (pstart);
/* Be defensive against series of ;;; characters. */
if (pend > pstart)
{
strncpy (fname, pstart, pend - pstart);
fname[pend - pstart] = '/';
strcpy (&fname[pend - pstart + 1], "cmdproxy.exe");
ExpandEnvironmentStrings ((LPSTR) fname, bufc,
sizeof (bufc));
if (sys_access (bufc, F_OK) == 0)
{
lpval = bufc;
dwType = REG_SZ;
break;
}
}
if (*pend)
pstart = pend + 1;
else
pstart = pend;
if (!*pstart)
{
/* If not found in any directory, use the
default as the last resort. */
lpval = (char *)env_vars[i].def_value;
dwType = REG_EXPAND_SZ;
}
} while (*pstart);
}
else
{
lpval = (char *)env_vars[i].def_value;
dwType = REG_EXPAND_SZ;
}
if (strcmp (env_vars[i].name, "HOME") == 0 && !appdata)
Vdelayed_warnings_list
= Fcons
(list2 (intern ("initialization"), build_string
("Use of `C:\\.emacs' without defining `HOME'\n"
"in the environment is deprecated, "
"see `Windows HOME' in the Emacs manual.")),
Vdelayed_warnings_list);
}
if (lpval)
{
char buf1[SET_ENV_BUF_SIZE], buf2[SET_ENV_BUF_SIZE];
if (dwType == REG_EXPAND_SZ)
ExpandEnvironmentStrings ((LPSTR) lpval, buf1, sizeof (buf1));
else if (dwType == REG_SZ)
strcpy (buf1, (char *)lpval);
if (dwType == REG_EXPAND_SZ || dwType == REG_SZ)
{
_snprintf (buf2, sizeof (buf2)-1, "%s=%s", env_vars[i].name,
buf1);
_putenv (strdup (buf2));
}
if (!dont_free)
xfree (lpval);
}
}
}
}
/* Rebuild system configuration to reflect invoking system. */
Vsystem_configuration = build_string (EMACS_CONFIGURATION);
/* Another special case: on NT, the PATH variable is actually named
"Path" although cmd.exe (perhaps NT itself) arranges for
environment variable lookup and setting to be case insensitive.
However, Emacs assumes a fully case sensitive environment, so we
need to change "Path" to "PATH" to match the expectations of
various elisp packages. We do this by the sneaky method of
modifying the string in the C runtime environ entry.
The same applies to COMSPEC. */
{
char ** envp;
const char *path = "PATH=";
int path_len = strlen (path);
const char *comspec = "COMSPEC=";
int comspec_len = strlen (comspec);
for (envp = environ; *envp; envp++)
if (_strnicmp (*envp, path, path_len) == 0)
memcpy (*envp, path, path_len);
else if (_strnicmp (*envp, comspec, comspec_len) == 0)
memcpy (*envp, comspec, comspec_len);
/* Make the same modification to `process-environment' which has
already been initialized in set_initial_environment. */
for (Lisp_Object env = Vprocess_environment; CONSP (env); env = XCDR (env))
{
Lisp_Object entry = XCAR (env);
if (_strnicmp (SDATA (entry), path, path_len) == 0)
for (int i = 0; i < path_len; i++)
SSET (entry, i, path[i]);
else if (_strnicmp (SDATA (entry), comspec, comspec_len) == 0)
for (int i = 0; i < comspec_len; i++)
SSET (entry, i, comspec[i]);
}
}
/* Remember the initial working directory for getcwd. */
w32_get_current_directory (startup_dir);
{
static char modname[MAX_PATH];
if (!GetModuleFileNameA (NULL, modname, MAX_PATH))
emacs_abort ();
argv[0] = modname;
}
/* Determine if there is a middle mouse button, to allow parse_button
to decide whether right mouse events should be mouse-2 or
mouse-3. */
w32_num_mouse_buttons = GetSystemMetrics (SM_CMOUSEBUTTONS);
init_user_info ();
}
/* Called from expand-file-name when default-directory is not a string. */
char *
emacs_root_dir (void)
{
static char root_dir[MAX_UTF8_PATH];
const char *p;
p = getenv ("emacs_dir");
if (p == NULL)
emacs_abort ();
filename_from_ansi (p, root_dir);
root_dir[parse_root (root_dir, NULL)] = '\0';
dostounix_filename (root_dir);
return root_dir;
}
/* Emulate fdutimens. */
/* Set the access and modification time stamps of FD (a.k.a. FILE) to be
TIMESPEC[0] and TIMESPEC[1], respectively.
FD must be either negative -- in which case it is ignored --
or a file descriptor that is open on FILE.
If FD is nonnegative, then FILE can be NULL, which means
use just futimes instead of utimes.
If TIMESPEC is null, FAIL.
Return 0 on success, -1 (setting errno) on failure. */
int
fdutimens (int fd, char const *file, struct timespec const timespec[2])
{
if (!timespec)
{
errno = ENOSYS;
return -1;
}
if (fd < 0 && !file)
{
errno = EBADF;
return -1;
}
/* _futime's prototype defines 2nd arg as having the type 'struct
_utimbuf', while utime needs to accept 'struct utimbuf' for
compatibility with Posix. So we need to use 2 different (but
equivalent) types to avoid compiler warnings, sigh. */
if (fd >= 0)
{
struct _utimbuf _ut;
_ut.actime = timespec[0].tv_sec;
_ut.modtime = timespec[1].tv_sec;
return _futime (fd, &_ut);
}
else
return utimensat (fd, file, timespec, 0);
}
/* ------------------------------------------------------------------------- */
/* IO support and wrapper functions for the Windows API. */
/* ------------------------------------------------------------------------- */
/* Place a wrapper around the MSVC version of ctime. It returns NULL
on network directories, so we handle that case here.
(Ulrich Leodolter, 1/11/95). */
char *
sys_ctime (const time_t *t)
{
char *str = (char *) ctime (t);
return (str ? str : (char *)"Sun Jan 01 00:00:00 1970");
}
/* Emulate sleep...we could have done this with a define, but that
would necessitate including windows.h in the files that used it.
This is much easier. */
void
sys_sleep (int seconds)
{
Sleep (seconds * 1000);
}
/* Internal MSVC functions for low-level descriptor munging */
extern int __cdecl _set_osfhnd (int fd, long h);
extern int __cdecl _free_osfhnd (int fd);
/* parallel array of private info on file handles */
filedesc fd_info [ MAXDESC ];
typedef struct volume_info_data {
struct volume_info_data * next;
/* time when info was obtained */
DWORD timestamp;
/* actual volume info */
char * root_dir;
DWORD serialnum;
DWORD maxcomp;
DWORD flags;
char * name;
char * type;
} volume_info_data;
/* Global referenced by various functions. */
static volume_info_data volume_info;
/* Vector to indicate which drives are local and fixed (for which cached
data never expires). */
static BOOL fixed_drives[26];
/* Consider cached volume information to be stale if older than 10s,
at least for non-local drives. Info for fixed drives is never stale. */
#define DRIVE_INDEX( c ) ( (c) <= 'Z' ? (c) - 'A' : (c) - 'a' )
#define VOLINFO_STILL_VALID( root_dir, info ) \
( ( isalpha (root_dir[0]) && \
fixed_drives[ DRIVE_INDEX (root_dir[0]) ] ) \
|| GetTickCount () - info->timestamp < 10000 )
/* Cache support functions. */
/* Simple linked list with linear search is sufficient. */
static volume_info_data *volume_cache = NULL;
static volume_info_data *
lookup_volume_info (char * root_dir)
{
volume_info_data * info;
for (info = volume_cache; info; info = info->next)
if (xstrcasecmp (info->root_dir, root_dir) == 0)
break;
return info;
}
static void
add_volume_info (char * root_dir, volume_info_data * info)
{
info->root_dir = xstrdup (root_dir);
unixtodos_filename (info->root_dir);
info->next = volume_cache;
volume_cache = info;
}
/* Wrapper for GetVolumeInformation, which uses caching to avoid
performance penalty (~2ms on 486 for local drives, 7.5ms for local
cdrom drive, ~5-10ms or more for remote drives on LAN). */
static volume_info_data *
GetCachedVolumeInformation (char * root_dir)
{
volume_info_data * info;
char default_root[ MAX_UTF8_PATH ];
char name[MAX_PATH+1];
char type[MAX_PATH+1];
/* NULL for root_dir means use root from current directory. */
if (root_dir == NULL)
{
w32_get_current_directory (default_root);
parse_root (default_root, (const char **)&root_dir);
*root_dir = 0;
root_dir = default_root;
}
/* Local fixed drives can be cached permanently. Removable drives
cannot be cached permanently, since the volume name and serial
number (if nothing else) can change. Remote drives should be
treated as if they are removable, since there is no sure way to
tell whether they are or not. Also, the UNC association of drive
letters mapped to remote volumes can be changed at any time (even
by other processes) without notice.
As a compromise, so we can benefit from caching info for remote
volumes, we use a simple expiry mechanism to invalidate cache
entries that are more than ten seconds old. */
#if 0
/* No point doing this, because WNetGetConnection is even slower than
GetVolumeInformation, consistently taking ~50ms on a 486 (FWIW,
GetDriveType is about the only call of this type which does not
involve network access, and so is extremely quick). */
/* Map drive letter to UNC if remote. */
if (isalpha (root_dir[0]) && !fixed[DRIVE_INDEX (root_dir[0])])
{
char remote_name[ 256 ];
char drive[3] = { root_dir[0], ':' };
if (WNetGetConnection (drive, remote_name, sizeof (remote_name))
== NO_ERROR)
/* do something */ ;
}
#endif
info = lookup_volume_info (root_dir);
if (info == NULL || ! VOLINFO_STILL_VALID (root_dir, info))
{
DWORD serialnum;
DWORD maxcomp;
DWORD flags;
/* Info is not cached, or is stale. */
if (w32_unicode_filenames)
{
wchar_t root_w[MAX_PATH];
wchar_t name_w[MAX_PATH+1];
wchar_t type_w[MAX_PATH+1];
filename_to_utf16 (root_dir, root_w);
if (!GetVolumeInformationW (root_w,
name_w, sizeof (name_w),
&serialnum,
&maxcomp,
&flags,
type_w, sizeof (type_w)))
return NULL;
/* Hmm... not really 100% correct, as these 2 are not file
names... */
filename_from_utf16 (name_w, name);
filename_from_utf16 (type_w, type);
}
else
{
char root_a[MAX_PATH];
char name_a[MAX_PATH+1];
char type_a[MAX_PATH+1];
filename_to_ansi (root_dir, root_a);
if (!GetVolumeInformationA (root_a,
name_a, sizeof (name_a),
&serialnum,
&maxcomp,
&flags,
type_a, sizeof (type_a)))
return NULL;
filename_from_ansi (name_a, name);
filename_from_ansi (type_a, type);
}
/* Cache the volume information for future use, overwriting existing
entry if present. */
if (info == NULL)
{
info = xmalloc (sizeof (volume_info_data));
add_volume_info (root_dir, info);
}
else
{
xfree (info->name);
xfree (info->type);
}
info->name = xstrdup (name);
unixtodos_filename (info->name);
info->serialnum = serialnum;
info->maxcomp = maxcomp;
info->flags = flags;
info->type = xstrdup (type);
info->timestamp = GetTickCount ();
}
return info;
}
/* Get information on the volume where NAME is held; set path pointer to
start of pathname in NAME (past UNC header\volume header if present),
if pPath is non-NULL.
Note: if NAME includes symlinks, the information is for the volume
of the symlink, not of its target. That's because, even though
GetVolumeInformation returns information about the symlink target
of its argument, we only pass the root directory to
GetVolumeInformation, not the full NAME. */
static int
get_volume_info (const char * name, const char ** pPath)
{
char temp[MAX_UTF8_PATH];
char *rootname = NULL; /* default to current volume */
volume_info_data * info;
int root_len = parse_root (name, pPath);
if (name == NULL)
return FALSE;
/* Copy the root name of the volume, if given. */
if (root_len)
{
strncpy (temp, name, root_len);
temp[root_len] = '\0';
unixtodos_filename (temp);
rootname = temp;
}
info = GetCachedVolumeInformation (rootname);
if (info != NULL)
{
/* Set global referenced by other functions. */
volume_info = *info;
return TRUE;
}
return FALSE;
}
/* Determine if volume is FAT format (ie. only supports short 8.3
names); also set path pointer to start of pathname in name, if
pPath is non-NULL. */
static int
is_fat_volume (const char * name, const char ** pPath)
{
if (get_volume_info (name, pPath))
return (volume_info.maxcomp == 12);
return FALSE;
}
/* Convert all slashes in a filename to backslashes, and map filename
to a valid 8.3 name if necessary. The result is a pointer to a
static buffer, so CAVEAT EMPTOR! */
const char *
map_w32_filename (const char * name, const char ** pPath)
{
static char shortname[MAX_UTF8_PATH];
char * str = shortname;
char c;
char * path;
const char * save_name = name;
if (strlen (name) >= sizeof (shortname))
{
/* Return a filename which will cause callers to fail. */
strcpy (shortname, "?");
return shortname;
}
if (!fatal_error_in_progress /* disable fancy processing during crash */
&& is_fat_volume (name, (const char **)&path)) /* truncate to 8.3 */
{
register int left = 8; /* maximum number of chars in part */
register int extn = 0; /* extension added? */
register int dots = 2; /* maximum number of dots allowed */
while (name < path)
*str++ = *name++; /* skip past UNC header */
while ((c = *name++))
{
switch ( c )
{
case ':':
case '\\':
case '/':
*str++ = (c == ':' ? ':' : '\\');
extn = 0; /* reset extension flags */
dots = 2; /* max 2 dots */
left = 8; /* max length 8 for main part */
break;
case '.':
if ( dots )
{
/* Convert path components of the form .xxx to _xxx,
but leave . and .. as they are. This allows .emacs
to be read as _emacs, for example. */
if (! *name ||
*name == '.' ||
IS_DIRECTORY_SEP (*name))
{
*str++ = '.';
dots--;
}
else
{
*str++ = '_';
left--;
dots = 0;
}
}
else if ( !extn )
{
*str++ = '.';
extn = 1; /* we've got an extension */
left = 3; /* 3 chars in extension */
}
else
{
/* any embedded dots after the first are converted to _ */
*str++ = '_';
}
break;
case '~':
case '#': /* don't lose these, they're important */
if ( ! left )
str[-1] = c; /* replace last character of part */
/* FALLTHRU */
FALLTHROUGH;
default:
if ( left && 'A' <= c && c <= 'Z' )
{
*str++ = tolower (c); /* map to lower case (looks nicer) */
left--;
dots = 0; /* started a path component */
}
break;
}
}
*str = '\0';
}
else
{
strcpy (shortname, name);
unixtodos_filename (shortname);
}
if (pPath)
*pPath = shortname + (path - save_name);
return shortname;
}
static int
is_exec (const char * name)
{
char * p = strrchr (name, '.');
return
(p != NULL
&& (xstrcasecmp (p, ".exe") == 0 ||
xstrcasecmp (p, ".com") == 0 ||
xstrcasecmp (p, ".bat") == 0 ||
xstrcasecmp (p, ".cmd") == 0));
}
/* Emulate the Unix directory procedures opendir, closedir, and
readdir. We rename them to sys_* names because some versions of
MinGW startup code call opendir and readdir to glob wildcards, and
the code that calls them doesn't grok UTF-8 encoded file names we
produce in dirent->d_name[]. */
struct dirent dir_static; /* simulated directory contents */
static HANDLE dir_find_handle = INVALID_HANDLE_VALUE;
static int dir_is_fat;
static char dir_pathname[MAX_UTF8_PATH];
static WIN32_FIND_DATAW dir_find_data_w;
static WIN32_FIND_DATAA dir_find_data_a;
#define DIR_FIND_DATA_W 1
#define DIR_FIND_DATA_A 2
static int last_dir_find_data = -1;
/* Support shares on a network resource as subdirectories of a read-only
root directory. */
static HANDLE wnet_enum_handle = INVALID_HANDLE_VALUE;
static HANDLE open_unc_volume (const char *);
static void *read_unc_volume (HANDLE, wchar_t *, char *, int);
static void close_unc_volume (HANDLE);
DIR *
sys_opendir (const char *filename)
{
DIR *dirp;
/* Opening is done by FindFirstFile. However, a read is inherent to
this operation, so we defer the open until read time. */
if (dir_find_handle != INVALID_HANDLE_VALUE)
return NULL;
if (wnet_enum_handle != INVALID_HANDLE_VALUE)
return NULL;
/* Note: We don't support traversal of UNC volumes via symlinks.
Doing so would mean punishing 99.99% of use cases by resolving
all the possible symlinks in FILENAME, recursively. */
if (is_unc_volume (filename))
{
wnet_enum_handle = open_unc_volume (filename);
if (wnet_enum_handle == INVALID_HANDLE_VALUE)
return NULL;
}
if (!(dirp = (DIR *) malloc (sizeof (DIR))))
return NULL;
dirp->dd_fd = 0;
dirp->dd_loc = 0;
dirp->dd_size = 0;
strncpy (dir_pathname, map_w32_filename (filename, NULL), MAX_UTF8_PATH - 1);
dir_pathname[MAX_UTF8_PATH - 1] = '\0';
/* Note: We don't support symlinks to file names on FAT volumes.
Doing so would mean punishing 99.99% of use cases by resolving
all the possible symlinks in FILENAME, recursively. */
dir_is_fat = is_fat_volume (filename, NULL);
return dirp;
}
void
sys_closedir (DIR *dirp)
{
/* If we have a find-handle open, close it. */
if (dir_find_handle != INVALID_HANDLE_VALUE)
{
FindClose (dir_find_handle);
dir_find_handle = INVALID_HANDLE_VALUE;
}
else if (wnet_enum_handle != INVALID_HANDLE_VALUE)
{
close_unc_volume (wnet_enum_handle);
wnet_enum_handle = INVALID_HANDLE_VALUE;
}
xfree ((char *) dirp);
}
struct dirent *
sys_readdir (DIR *dirp)
{
int downcase = !NILP (Vw32_downcase_file_names);
if (wnet_enum_handle != INVALID_HANDLE_VALUE)
{
if (!read_unc_volume (wnet_enum_handle,
dir_find_data_w.cFileName,
dir_find_data_a.cFileName,
MAX_PATH))
return NULL;
}
/* If we aren't dir_finding, do a find-first, otherwise do a find-next. */
else if (dir_find_handle == INVALID_HANDLE_VALUE)
{
char filename[MAX_UTF8_PATH];
int ln;
bool last_slash = true;
/* Note: We don't need to worry about dir_pathname being longer
than MAX_UTF8_PATH, as sys_opendir already took care of that
when it called map_w32_filename: that function will put a "?"
in its return value in that case, thus failing all the calls
below. */
strcpy (filename, dir_pathname);
ln = strlen (filename);
if (!IS_DIRECTORY_SEP (filename[ln - 1]))
last_slash = false;
/* Note: No need to resolve symlinks in FILENAME, because
FindFirst opens the directory that is the target of a
symlink. */
if (w32_unicode_filenames)
{
wchar_t fnw[MAX_PATH + 2];
filename_to_utf16 (filename, fnw);
if (!last_slash)
wcscat (fnw, L"\\");
wcscat (fnw, L"*");
dir_find_handle = FindFirstFileW (fnw, &dir_find_data_w);
}
else
{
char fna[MAX_PATH + 2];
filename_to_ansi (filename, fna);
if (!last_slash)
strcat (fna, "\\");
strcat (fna, "*");
/* If FILENAME is not representable by the current ANSI
codepage, we don't want FindFirstFileA to interpret the
'?' characters as a wildcard. */
if (_mbspbrk (fna, "?"))
dir_find_handle = INVALID_HANDLE_VALUE;
else
dir_find_handle = FindFirstFileA (fna, &dir_find_data_a);
}
if (dir_find_handle == INVALID_HANDLE_VALUE)
{
/* Any changes in the value of errno here should be in sync
with what directory_files_internal does when it calls
readdir. */
switch (GetLastError ())
{
/* Windows uses this value when FindFirstFile finds no
files that match the wildcard. This is not supposed
to happen, since our wildcard is "*", but just in
case, if there's some weird empty directory with not
even "." and ".." entries... */
case ERROR_FILE_NOT_FOUND:
errno = 0;
/* FALLTHRU */
default:
break;
case ERROR_ACCESS_DENIED:
case ERROR_NETWORK_ACCESS_DENIED:
errno = EACCES;
break;
case ERROR_PATH_NOT_FOUND:
case ERROR_INVALID_DRIVE:
case ERROR_NOT_READY:
case ERROR_BAD_NETPATH:
case ERROR_BAD_NET_NAME:
errno = ENOENT;
break;
}
return NULL;
}
}
else if (w32_unicode_filenames)
{
if (!FindNextFileW (dir_find_handle, &dir_find_data_w))
{
errno = 0;
return NULL;
}
}
else
{
if (!FindNextFileA (dir_find_handle, &dir_find_data_a))
{
errno = 0;
return NULL;
}
}
/* Emacs never uses this value, so don't bother making it match
value returned by stat(). */
dir_static.d_ino = 1;
if (w32_unicode_filenames)
{
if (downcase || dir_is_fat)
{
wchar_t tem[MAX_PATH];
wcscpy (tem, dir_find_data_w.cFileName);
CharLowerW (tem);
filename_from_utf16 (tem, dir_static.d_name);
}
else
filename_from_utf16 (dir_find_data_w.cFileName, dir_static.d_name);
last_dir_find_data = DIR_FIND_DATA_W;
}
else
{
char tem[MAX_PATH];
/* If the file name in cFileName[] includes `?' characters, it
means the original file name used characters that cannot be
represented by the current ANSI codepage. To avoid total
lossage, retrieve the short 8+3 alias of the long file
name. */
if (_mbspbrk (dir_find_data_a.cFileName, "?"))
{
strcpy (tem, dir_find_data_a.cAlternateFileName);
/* 8+3 aliases are returned in all caps, which could break
various alists that look at filenames' extensions. */
downcase = 1;
}
else if (downcase || dir_is_fat)
strcpy (tem, dir_find_data_a.cFileName);
else
filename_from_ansi (dir_find_data_a.cFileName, dir_static.d_name);
if (downcase || dir_is_fat)
{
_mbslwr (tem);
filename_from_ansi (tem, dir_static.d_name);
}
last_dir_find_data = DIR_FIND_DATA_A;
}
dir_static.d_namlen = strlen (dir_static.d_name);
dir_static.d_reclen = sizeof (struct dirent) - MAX_UTF8_PATH + 3 +
dir_static.d_namlen - dir_static.d_namlen % 4;
return &dir_static;
}
static HANDLE
open_unc_volume (const char *path)
{
const char *fn = map_w32_filename (path, NULL);
DWORD result;
HANDLE henum;
if (w32_unicode_filenames)
{
NETRESOURCEW nrw;
wchar_t fnw[MAX_PATH];
nrw.dwScope = RESOURCE_GLOBALNET;
nrw.dwType = RESOURCETYPE_DISK;
nrw.dwDisplayType = RESOURCEDISPLAYTYPE_SERVER;
nrw.dwUsage = RESOURCEUSAGE_CONTAINER;
nrw.lpLocalName = NULL;
filename_to_utf16 (fn, fnw);
nrw.lpRemoteName = fnw;
nrw.lpComment = NULL;
nrw.lpProvider = NULL;
result = WNetOpenEnumW (RESOURCE_GLOBALNET, RESOURCETYPE_DISK,
RESOURCEUSAGE_CONNECTABLE, &nrw, &henum);
}
else
{
NETRESOURCEA nra;
char fna[MAX_PATH];
nra.dwScope = RESOURCE_GLOBALNET;
nra.dwType = RESOURCETYPE_DISK;
nra.dwDisplayType = RESOURCEDISPLAYTYPE_SERVER;
nra.dwUsage = RESOURCEUSAGE_CONTAINER;
nra.lpLocalName = NULL;
filename_to_ansi (fn, fna);
nra.lpRemoteName = fna;
nra.lpComment = NULL;
nra.lpProvider = NULL;
result = WNetOpenEnumA (RESOURCE_GLOBALNET, RESOURCETYPE_DISK,
RESOURCEUSAGE_CONNECTABLE, &nra, &henum);
}
if (result == NO_ERROR)
return henum;
else
{
/* Make sure directory_files_internal reports a sensible error. */
errno = ENOENT;
return INVALID_HANDLE_VALUE;
}
}
static void *
read_unc_volume (HANDLE henum, wchar_t *fname_w, char *fname_a, int size)
{
DWORD count;
int result;
char *buffer;
DWORD bufsize = 512;
void *retval;
count = 1;
if (w32_unicode_filenames)
{
wchar_t *ptrw;
bufsize *= 2;
buffer = alloca (bufsize);
result = WNetEnumResourceW (henum, &count, buffer, &bufsize);
if (result != NO_ERROR)
return NULL;
/* WNetEnumResource returns \\resource\share...skip forward to "share". */
ptrw = ((LPNETRESOURCEW) buffer)->lpRemoteName;
ptrw += 2;
while (*ptrw && *ptrw != L'/' && *ptrw != L'\\') ptrw++;
ptrw++;
wcsncpy (fname_w, ptrw, size);
retval = fname_w;
}
else
{
int dbcs_p = max_filename_mbslen () > 1;
char *ptra;
buffer = alloca (bufsize);
result = WNetEnumResourceA (henum, &count, buffer, &bufsize);
if (result != NO_ERROR)
return NULL;
ptra = ((LPNETRESOURCEA) buffer)->lpRemoteName;
ptra += 2;
if (!dbcs_p)
while (*ptra && !IS_DIRECTORY_SEP (*ptra)) ptra++;
else
{
while (*ptra && !IS_DIRECTORY_SEP (*ptra))
ptra = CharNextExA (file_name_codepage, ptra, 0);
}
ptra++;
strncpy (fname_a, ptra, size);
retval = fname_a;
}
return retval;
}
static void
close_unc_volume (HANDLE henum)
{
if (henum != INVALID_HANDLE_VALUE)
WNetCloseEnum (henum);
}
static DWORD
unc_volume_file_attributes (const char *path)
{
HANDLE henum;
DWORD attrs;
henum = open_unc_volume (path);
if (henum == INVALID_HANDLE_VALUE)
return -1;
attrs = FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_DIRECTORY;
close_unc_volume (henum);
return attrs;
}
/* Ensure a network connection is authenticated. */
static void
logon_network_drive (const char *path)
{
char share[MAX_UTF8_PATH];
int n_slashes;
char drive[4];
UINT drvtype;
char *p;
DWORD val;
if (IS_DIRECTORY_SEP (path[0]) && IS_DIRECTORY_SEP (path[1]))
drvtype = DRIVE_REMOTE;
else if (path[0] == '\0' || path[1] != ':')
drvtype = GetDriveType (NULL);
else
{
drive[0] = path[0];
drive[1] = ':';
drive[2] = '\\';
drive[3] = '\0';
drvtype = GetDriveType (drive);
}
/* Only logon to networked drives. */
if (drvtype != DRIVE_REMOTE)
return;
n_slashes = 2;
strncpy (share, path, MAX_UTF8_PATH - 1);
/* Truncate to just server and share name. */
for (p = share + 2; *p && p < share + MAX_UTF8_PATH; p++)
{
if (IS_DIRECTORY_SEP (*p) && ++n_slashes > 3)
{
*p = '\0';
break;
}
}
if (w32_unicode_filenames)
{
NETRESOURCEW resourcew;
wchar_t share_w[MAX_PATH];
resourcew.dwScope = RESOURCE_GLOBALNET;
resourcew.dwType = RESOURCETYPE_DISK;
resourcew.dwDisplayType = RESOURCEDISPLAYTYPE_SHARE;
resourcew.dwUsage = RESOURCEUSAGE_CONTAINER;
resourcew.lpLocalName = NULL;
filename_to_utf16 (share, share_w);
resourcew.lpRemoteName = share_w;
resourcew.lpProvider = NULL;
val = WNetAddConnection2W (&resourcew, NULL, NULL, CONNECT_INTERACTIVE);
}
else
{
NETRESOURCEA resourcea;
char share_a[MAX_PATH];
resourcea.dwScope = RESOURCE_GLOBALNET;
resourcea.dwType = RESOURCETYPE_DISK;
resourcea.dwDisplayType = RESOURCEDISPLAYTYPE_SHARE;
resourcea.dwUsage = RESOURCEUSAGE_CONTAINER;
resourcea.lpLocalName = NULL;
filename_to_ansi (share, share_a);
resourcea.lpRemoteName = share_a;
resourcea.lpProvider = NULL;
val = WNetAddConnection2A (&resourcea, NULL, NULL, CONNECT_INTERACTIVE);
}
switch (val)
{
case NO_ERROR:
case ERROR_ALREADY_ASSIGNED:
break;
case ERROR_ACCESS_DENIED:
case ERROR_LOGON_FAILURE:
errno = EACCES;
break;
case ERROR_BUSY:
errno = EAGAIN;
break;
case ERROR_BAD_NET_NAME:
case ERROR_NO_NET_OR_BAD_PATH:
case ERROR_NO_NETWORK:
case ERROR_CANCELLED:
default:
errno = ENOENT;
break;
}
}
/* Emulate faccessat(2). */
int
faccessat (int dirfd, const char * path, int mode, int flags)
{
DWORD attributes;
char fullname[MAX_UTF8_PATH];
/* Rely on a hack: an open directory is modeled as file descriptor 0,
and its actual file name is stored in dir_pathname by opendir.
This is good enough for the current usage in Emacs, but is fragile. */
if (dirfd != AT_FDCWD
&& !(IS_DIRECTORY_SEP (path[0])
|| IS_DEVICE_SEP (path[1])))
{
char lastc = dir_pathname[strlen (dir_pathname) - 1];
if (_snprintf (fullname, sizeof fullname, "%s%s%s",
dir_pathname, IS_DIRECTORY_SEP (lastc) ? "" : "/", path)
< 0)
{
errno = ENAMETOOLONG;
return -1;
}
path = fullname;
}
/* When dired.c calls us with F_OK and a trailing slash, it actually
wants to know whether PATH is a directory. */
if (IS_DIRECTORY_SEP (path[strlen (path) - 1]) && mode == F_OK)
mode |= D_OK;
/* MSVCRT implementation of 'access' doesn't recognize D_OK, and its
newer versions blow up when passed D_OK. */
path = map_w32_filename (path, NULL);
/* If the last element of PATH is a symlink, we need to resolve it
to get the attributes of its target file. Note: any symlinks in
PATH elements other than the last one are transparently resolved
by GetFileAttributes below. */
if ((volume_info.flags & FILE_SUPPORTS_REPARSE_POINTS) != 0
&& (flags & AT_SYMLINK_NOFOLLOW) == 0)
path = chase_symlinks (path);
if (w32_unicode_filenames)
{
wchar_t path_w[MAX_PATH];
filename_to_utf16 (path, path_w);
attributes = GetFileAttributesW (path_w);
}
else
{
char path_a[MAX_PATH];
filename_to_ansi (path, path_a);
attributes = GetFileAttributesA (path_a);
}
if (attributes == -1)
{
DWORD w32err = GetLastError ();
switch (w32err)
{
case ERROR_INVALID_NAME:
case ERROR_BAD_PATHNAME:
if (is_unc_volume (path))
{
attributes = unc_volume_file_attributes (path);
if (attributes == -1)
{
errno = EACCES;
return -1;
}
goto check_attrs;
}
/* FALLTHROUGH */
FALLTHROUGH;
case ERROR_FILE_NOT_FOUND:
case ERROR_PATH_NOT_FOUND:
case ERROR_INVALID_DRIVE:
case ERROR_NOT_READY:
case ERROR_BAD_NETPATH:
case ERROR_BAD_NET_NAME:
errno = ENOENT;
break;
default:
errno = EACCES;
break;
}
return -1;
}
check_attrs:
if ((mode & X_OK) != 0
&& !(is_exec (path) || (attributes & FILE_ATTRIBUTE_DIRECTORY) != 0))
{
errno = EACCES;
return -1;
}
if ((mode & W_OK) != 0 && (attributes & FILE_ATTRIBUTE_READONLY) != 0)
{
errno = EACCES;
return -1;
}
if ((mode & D_OK) != 0 && (attributes & FILE_ATTRIBUTE_DIRECTORY) == 0)
{
errno = EACCES;
return -1;
}
return 0;
}
/* A special test for DIRNAME being a directory accessible by the
current user. This is needed because the security permissions in
directory's ACLs are not visible in the Posix-style mode bits
returned by 'stat' and in attributes returned by GetFileAttributes.
So a directory would seem like it's readable by the current user,
but will in fact error out with EACCES when they actually try. */
int
w32_accessible_directory_p (const char *dirname, ptrdiff_t dirlen)
{
char pattern[MAX_UTF8_PATH];
bool last_slash = dirlen > 0 && IS_DIRECTORY_SEP (dirname[dirlen - 1]);
HANDLE dh;
/* Network volumes need a different reading method. */
if (is_unc_volume (dirname))
{
void *read_result = NULL;
wchar_t fnw[MAX_PATH];
char fna[MAX_PATH];
dh = open_unc_volume (dirname);
if (dh != INVALID_HANDLE_VALUE)
{
read_result = read_unc_volume (dh, fnw, fna, MAX_PATH);
close_unc_volume (dh);
}
/* Treat empty volumes as accessible. */
return read_result != NULL || GetLastError () == ERROR_NO_MORE_ITEMS;
}
/* Note: map_w32_filename makes sure DIRNAME is not longer than
MAX_UTF8_PATH. */
strcpy (pattern, map_w32_filename (dirname, NULL));
/* Note: No need to resolve symlinks in FILENAME, because FindFirst
opens the directory that is the target of a symlink. */
if (w32_unicode_filenames)
{
wchar_t pat_w[MAX_PATH + 2];
WIN32_FIND_DATAW dfd_w;
filename_to_utf16 (pattern, pat_w);
if (!last_slash)
wcscat (pat_w, L"\\");
wcscat (pat_w, L"*");
dh = FindFirstFileW (pat_w, &dfd_w);
}
else
{
char pat_a[MAX_PATH + 2];
WIN32_FIND_DATAA dfd_a;
filename_to_ansi (pattern, pat_a);
if (!last_slash)
strcpy (pat_a, "\\");
strcat (pat_a, "*");
/* In case DIRNAME cannot be expressed in characters from the
current ANSI codepage. */
if (_mbspbrk (pat_a, "?"))
{
errno = ENOENT;
return 0;
}
dh = FindFirstFileA (pat_a, &dfd_a);
}
if (dh == INVALID_HANDLE_VALUE)
{
DWORD w32err = GetLastError ();
switch (w32err)
{
case ERROR_INVALID_NAME:
case ERROR_BAD_PATHNAME:
case ERROR_FILE_NOT_FOUND:
case ERROR_PATH_NOT_FOUND:
case ERROR_NO_MORE_FILES:
case ERROR_BAD_NETPATH:
errno = ENOENT;
break;
case ERROR_NOT_READY:
errno = ENODEV;
break;
default:
errno = EACCES;
break;
}
return 0;
}
FindClose (dh);
return 1;
}
/* A version of 'access' to be used locally with file names in
locale-specific encoding. Does not resolve symlinks and does not
support file names on FAT12 and FAT16 volumes, but that's OK, since
we only invoke this function for files inside the Emacs source or
installation tree, on directories (so any symlinks should have the
directory bit set), and on short file names such as "C:/.emacs". */
static int
sys_access (const char *fname, int mode)
{
char fname_copy[MAX_PATH], *p;
DWORD attributes;
strcpy (fname_copy, fname);
/* Do the equivalent of unixtodos_filename. */
for (p = fname_copy; *p; p = CharNext (p))
if (*p == '/')
*p = '\\';
if ((attributes = GetFileAttributesA (fname_copy)) == -1)
{
DWORD w32err = GetLastError ();
switch (w32err)
{
case ERROR_INVALID_NAME:
case ERROR_BAD_PATHNAME:
case ERROR_FILE_NOT_FOUND:
case ERROR_BAD_NETPATH:
errno = ENOENT;
break;
default:
errno = EACCES;
break;
}
return -1;
}
if ((mode & X_OK) != 0
&& !(is_exec (fname_copy)
|| (attributes & FILE_ATTRIBUTE_DIRECTORY) != 0))
{
errno = EACCES;
return -1;
}
if ((mode & W_OK) != 0 && (attributes & FILE_ATTRIBUTE_READONLY) != 0)
{
errno = EACCES;
return -1;
}
if ((mode & D_OK) != 0 && (attributes & FILE_ATTRIBUTE_DIRECTORY) == 0)
{
errno = EACCES;
return -1;
}
return 0;
}
/* Shadow some MSVC runtime functions to map requests for long filenames
to reasonable short names if necessary. This was originally added to
permit running Emacs on NT 3.1 on a FAT partition, which doesn't support
long file names. */
int
sys_chdir (const char * path)
{
path = map_w32_filename (path, NULL);
if (w32_unicode_filenames)
{
wchar_t newdir_w[MAX_PATH];
if (filename_to_utf16 (path, newdir_w) == 0)
return _wchdir (newdir_w);
return -1;
}
else
{
char newdir_a[MAX_PATH];
if (filename_to_ansi (path, newdir_a) == 0)
return _chdir (newdir_a);
return -1;
}
}
static int
chmod_worker (const char * path, int mode)
{
if (w32_unicode_filenames)
{
wchar_t path_w[MAX_PATH];
filename_to_utf16 (path, path_w);
return _wchmod (path_w, mode);
}
else
{
char path_a[MAX_PATH];
filename_to_ansi (path, path_a);
return _chmod (path_a, mode);
}
}
int
sys_chmod (const char * path, int mode)
{
path = chase_symlinks (map_w32_filename (path, NULL));
return chmod_worker (path, mode);
}
int
lchmod (const char * path, mode_t mode)
{
path = map_w32_filename (path, NULL);
return chmod_worker (path, mode);
}
int
sys_creat (const char * path, int mode)
{
path = map_w32_filename (path, NULL);
if (w32_unicode_filenames)
{
wchar_t path_w[MAX_PATH];
filename_to_utf16 (path, path_w);
return _wcreat (path_w, mode);
}
else
{
char path_a[MAX_PATH];
filename_to_ansi (path, path_a);
return _creat (path_a, mode);
}
}
FILE *
sys_fopen (const char * path, const char * mode)
{
int fd;
int oflag;
const char * mode_save = mode;
/* Force all file handles to be non-inheritable. This is necessary to
ensure child processes don't unwittingly inherit handles that might
prevent future file access. */
if (mode[0] == 'r')
oflag = O_RDONLY;
else if (mode[0] == 'w' || mode[0] == 'a')
oflag = O_WRONLY | O_CREAT | O_TRUNC;
else
return NULL;
/* Only do simplistic option parsing. */
while (*++mode)
if (mode[0] == '+')
{
oflag &= ~(O_RDONLY | O_WRONLY);
oflag |= O_RDWR;
}
else if (mode[0] == 'b')
{
oflag &= ~O_TEXT;
oflag |= O_BINARY;
}
else if (mode[0] == 't')
{
oflag &= ~O_BINARY;
oflag |= O_TEXT;
}
else break;
path = map_w32_filename (path, NULL);
if (w32_unicode_filenames)
{
wchar_t path_w[MAX_PATH];
filename_to_utf16 (path, path_w);
fd = _wopen (path_w, oflag | _O_NOINHERIT, 0644);
}
else
{
char path_a[MAX_PATH];
filename_to_ansi (path, path_a);
fd = _open (path_a, oflag | _O_NOINHERIT, 0644);
}
if (fd < 0)
return NULL;
return _fdopen (fd, mode_save);
}
/* This only works on NTFS volumes, but is useful to have. */
int
sys_link (const char * old, const char * new)
{
HANDLE fileh;
int result = -1;
char oldname[MAX_UTF8_PATH], newname[MAX_UTF8_PATH];
wchar_t oldname_w[MAX_PATH];
char oldname_a[MAX_PATH];
if (old == NULL || new == NULL)
{
errno = ENOENT;
return -1;
}
strcpy (oldname, map_w32_filename (old, NULL));
strcpy (newname, map_w32_filename (new, NULL));
if (w32_unicode_filenames)
{
filename_to_utf16 (oldname, oldname_w);
fileh = CreateFileW (oldname_w, 0, 0, NULL, OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS, NULL);
}
else
{
filename_to_ansi (oldname, oldname_a);
fileh = CreateFileA (oldname_a, 0, 0, NULL, OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS, NULL);
}
if (fileh != INVALID_HANDLE_VALUE)
{
int wlen;
/* Confusingly, the "alternate" stream name field does not apply
when restoring a hard link, and instead contains the actual
stream data for the link (ie. the name of the link to create).
The WIN32_STREAM_ID structure before the cStreamName field is
the stream header, which is then immediately followed by the
stream data. */
struct {
WIN32_STREAM_ID wid;
WCHAR wbuffer[MAX_PATH]; /* extra space for link name */
} data;
/* We used to pass MB_PRECOMPOSED as the 2nd arg here, but MSDN
indicates that flag is unsupported for CP_UTF8, and OTOH says
it is the default anyway. */
wlen = pMultiByteToWideChar (CP_UTF8, 0, newname, -1,
data.wid.cStreamName, MAX_PATH);
if (wlen > 0)
{
LPVOID context = NULL;
DWORD wbytes = 0;
data.wid.dwStreamId = BACKUP_LINK;
data.wid.dwStreamAttributes = 0;
data.wid.Size.LowPart = wlen * sizeof (WCHAR);
data.wid.Size.HighPart = 0;
data.wid.dwStreamNameSize = 0;
if (BackupWrite (fileh, (LPBYTE)&data,
offsetof (WIN32_STREAM_ID, cStreamName)
+ data.wid.Size.LowPart,
&wbytes, FALSE, FALSE, &context)
&& BackupWrite (fileh, NULL, 0, &wbytes, TRUE, FALSE, &context))
{
/* succeeded */
result = 0;
}
else
{
DWORD err = GetLastError ();
DWORD attributes;
switch (err)
{
case ERROR_ACCESS_DENIED:
/* This is what happens when OLDNAME is a directory,
since Windows doesn't support hard links to
directories. Posix says to set errno to EPERM in
that case. */
if (w32_unicode_filenames)
attributes = GetFileAttributesW (oldname_w);
else
attributes = GetFileAttributesA (oldname_a);
if (attributes != -1
&& (attributes & FILE_ATTRIBUTE_DIRECTORY) != 0)
errno = EPERM;
else if (attributes == -1
&& is_unc_volume (oldname)
&& unc_volume_file_attributes (oldname) != -1)
errno = EPERM;
else
errno = EACCES;
break;
case ERROR_TOO_MANY_LINKS:
errno = EMLINK;
break;
case ERROR_NOT_SAME_DEVICE:
errno = EXDEV;
break;
default:
errno = EINVAL;
break;
}
}
}
CloseHandle (fileh);
}
else
errno = ENOENT;
return result;
}
int
sys_mkdir (const char * path, mode_t mode)
{
path = map_w32_filename (path, NULL);
if (w32_unicode_filenames)
{
wchar_t path_w[MAX_PATH];
filename_to_utf16 (path, path_w);
return _wmkdir (path_w);
}
else
{
char path_a[MAX_PATH];
filename_to_ansi (path, path_a);
return _mkdir (path_a);
}
}
int
sys_open (const char * path, int oflag, int mode)
{
const char* mpath = map_w32_filename (path, NULL);
int res = -1;
if (w32_unicode_filenames)
{
wchar_t mpath_w[MAX_PATH];
filename_to_utf16 (mpath, mpath_w);
/* If possible, try to open file without _O_CREAT, to be able to
write to existing hidden and system files. Force all file
handles to be non-inheritable. */
if ((oflag & (_O_CREAT | _O_EXCL)) != (_O_CREAT | _O_EXCL))
res = _wopen (mpath_w, (oflag & ~_O_CREAT) | _O_NOINHERIT, mode);
if (res < 0)
res = _wopen (mpath_w, oflag | _O_NOINHERIT, mode);
}
else
{
char mpath_a[MAX_PATH];
filename_to_ansi (mpath, mpath_a);
if ((oflag & (_O_CREAT | _O_EXCL)) != (_O_CREAT | _O_EXCL))
res = _open (mpath_a, (oflag & ~_O_CREAT) | _O_NOINHERIT, mode);
if (res < 0)
res = _open (mpath_a, oflag | _O_NOINHERIT, mode);
}
return res;
}
int
openat (int fd, const char * path, int oflag, int mode)
{
/* Rely on a hack: an open directory is modeled as file descriptor 0,
as in fstatat. FIXME: Add proper support for openat. */
char fullname[MAX_UTF8_PATH];
if (fd != AT_FDCWD)
{
if (_snprintf (fullname, sizeof fullname, "%s/%s", dir_pathname, path)
< 0)
{
errno = ENAMETOOLONG;
return -1;
}
path = fullname;
}
return sys_open (path, oflag, mode);
}
int
fchmod (int fd, mode_t mode)
{
return 0;
}
int
fchmodat (int fd, char const *path, mode_t mode, int flags)
{
/* Rely on a hack: an open directory is modeled as file descriptor 0,
as in fstatat. FIXME: Add proper support for fchmodat. */
char fullname[MAX_UTF8_PATH];
if (fd != AT_FDCWD)
{
if (_snprintf (fullname, sizeof fullname, "%s/%s", dir_pathname, path)
< 0)
{
errno = ENAMETOOLONG;
return -1;
}
path = fullname;
}
return
flags == AT_SYMLINK_NOFOLLOW ? lchmod (path, mode) : sys_chmod (path, mode);
}
int
sys_rename_replace (const char *oldname, const char *newname, BOOL force)
{
BOOL result;
char temp[MAX_UTF8_PATH], temp_a[MAX_PATH];;
int newname_dev;
int oldname_dev;
bool have_temp_a = false;
/* MoveFile on Windows 95 doesn't correctly change the short file name
alias in a number of circumstances (it is not easy to predict when
just by looking at oldname and newname, unfortunately). In these
cases, renaming through a temporary name avoids the problem.
A second problem on Windows 95 is that renaming through a temp name when
newname is uppercase fails (the final long name ends up in
lowercase, although the short alias might be uppercase) UNLESS the
long temp name is not 8.3.
So, on Windows 95 we always rename through a temp name, and we make sure
the temp name has a long extension to ensure correct renaming. */
strcpy (temp, map_w32_filename (oldname, NULL));
/* volume_info is set indirectly by map_w32_filename. */
oldname_dev = volume_info.serialnum;
if (os_subtype == OS_SUBTYPE_9X)
{
char * o;
char * p;
int i = 0;
char oldname_a[MAX_PATH];
oldname = map_w32_filename (oldname, NULL);
filename_to_ansi (oldname, oldname_a);
filename_to_ansi (temp, temp_a);
if ((o = strrchr (oldname_a, '\\')))
o++;
else
o = (char *) oldname_a;
if ((p = strrchr (temp_a, '\\')))
p++;
else
p = temp_a;
do
{
/* Force temp name to require a manufactured 8.3 alias - this
seems to make the second rename work properly. */
sprintf (p, "_.%s.%d", o, i);
i++;
result = rename (oldname_a, temp_a);
}
/* This loop must surely terminate! */
while (result < 0 && errno == EEXIST);
if (result < 0)
return -1;
have_temp_a = true;
}
/* If FORCE, emulate Unix behavior - newname is deleted if it already exists
(at least if it is a file; don't do this for directories).
Since we mustn't do this if we are just changing the case of the
file name (we would end up deleting the file we are trying to
rename!), we let rename detect if the destination file already
exists - that way we avoid the possible pitfalls of trying to
determine ourselves whether two names really refer to the same
file, which is not always possible in the general case. (Consider
all the permutations of shared or subst'd drives, etc.) */
newname = map_w32_filename (newname, NULL);
/* volume_info is set indirectly by map_w32_filename. */
newname_dev = volume_info.serialnum;
if (w32_unicode_filenames)
{
wchar_t temp_w[MAX_PATH], newname_w[MAX_PATH];
filename_to_utf16 (temp, temp_w);
filename_to_utf16 (newname, newname_w);
result = _wrename (temp_w, newname_w);
if (result < 0)
{
DWORD w32err = GetLastError ();
if (errno == EACCES
&& newname_dev != oldname_dev)
{
DWORD attributes;
/* The implementation of `rename' on Windows does not return
errno = EXDEV when you are moving a directory to a
different storage device (ex. logical disk). It returns
EACCES instead. So here we handle such situations and
return EXDEV. */
if ((attributes = GetFileAttributesW (temp_w)) != -1
&& (attributes & FILE_ATTRIBUTE_DIRECTORY))
errno = EXDEV;
}
else if (errno == EEXIST && force)
{
DWORD attributes_old;
DWORD attributes_new;
if (_wchmod (newname_w, 0666) != 0)
return result;
attributes_old = GetFileAttributesW (temp_w);
attributes_new = GetFileAttributesW (newname_w);
if (attributes_old != -1 && attributes_new != -1
&& ((attributes_old & FILE_ATTRIBUTE_DIRECTORY)
!= (attributes_new & FILE_ATTRIBUTE_DIRECTORY)))
{
if ((attributes_old & FILE_ATTRIBUTE_DIRECTORY) != 0)
errno = ENOTDIR;
else
errno = EISDIR;
return -1;
}
if ((attributes_new & FILE_ATTRIBUTE_DIRECTORY) != 0)
{
if (_wrmdir (newname_w) != 0)
return result;
}
else if (_wunlink (newname_w) != 0)
return result;
result = _wrename (temp_w, newname_w);
}
else if (w32err == ERROR_PRIVILEGE_NOT_HELD
&& is_symlink (temp))
{
/* This is Windows prohibiting the user from creating a
symlink in another place, since that requires
privileges. */
errno = EPERM;
}
}
}
else
{
char newname_a[MAX_PATH];
if (!have_temp_a)
filename_to_ansi (temp, temp_a);
filename_to_ansi (newname, newname_a);
result = rename (temp_a, newname_a);
if (result < 0)
{
DWORD w32err = GetLastError ();
if (errno == EACCES
&& newname_dev != oldname_dev)
{
DWORD attributes;
if ((attributes = GetFileAttributesA (temp_a)) != -1
&& (attributes & FILE_ATTRIBUTE_DIRECTORY))
errno = EXDEV;
}
else if (errno == EEXIST && force)
{
DWORD attributes_old;
DWORD attributes_new;
if (_chmod (newname_a, 0666) != 0)
return result;
attributes_old = GetFileAttributesA (temp_a);
attributes_new = GetFileAttributesA (newname_a);
if (attributes_old != -1 && attributes_new != -1
&& ((attributes_old & FILE_ATTRIBUTE_DIRECTORY)
!= (attributes_new & FILE_ATTRIBUTE_DIRECTORY)))
{
if ((attributes_old & FILE_ATTRIBUTE_DIRECTORY) != 0)
errno = ENOTDIR;
else
errno = EISDIR;
return -1;
}
if ((attributes_new & FILE_ATTRIBUTE_DIRECTORY) != 0)
{
if (_rmdir (newname_a) != 0)
return result;
}
else if (_unlink (newname_a) != 0)
return result;
result = rename (temp_a, newname_a);
}
else if (w32err == ERROR_PRIVILEGE_NOT_HELD
&& is_symlink (temp))
errno = EPERM;
}
}
return result;
}
int
sys_rename (char const *old, char const *new)
{
return sys_rename_replace (old, new, TRUE);
}
int
sys_rmdir (const char * path)
{
path = map_w32_filename (path, NULL);
if (w32_unicode_filenames)
{
wchar_t path_w[MAX_PATH];
filename_to_utf16 (path, path_w);
return _wrmdir (path_w);
}
else
{
char path_a[MAX_PATH];
filename_to_ansi (path, path_a);
return _rmdir (path_a);
}
}
int
sys_unlink (const char * path)
{
int rmstatus, e;
path = map_w32_filename (path, NULL);
if (w32_unicode_filenames)
{
wchar_t path_w[MAX_PATH];
filename_to_utf16 (path, path_w);
/* On Unix, unlink works without write permission. */
_wchmod (path_w, 0666);
rmstatus = _wunlink (path_w);
e = errno;
/* Symlinks to directories can only be deleted by _rmdir;
_unlink returns EACCES. */
if (rmstatus != 0
&& errno == EACCES
&& (is_symlink (path) & FILE_ATTRIBUTE_DIRECTORY) != 0)
rmstatus = _wrmdir (path_w);
else
errno = e;
}
else
{
char path_a[MAX_PATH];
filename_to_ansi (path, path_a);
_chmod (path_a, 0666);
rmstatus = _unlink (path_a);
e = errno;
if (rmstatus != 0
&& errno == EACCES
&& (is_symlink (path) & FILE_ATTRIBUTE_DIRECTORY) != 0)
rmstatus = _rmdir (path_a);
else
errno = e;
}
return rmstatus;
}
static FILETIME utc_base_ft;
static ULONGLONG utc_base; /* In 100ns units */
static int init = 0;
#define FILETIME_TO_U64(result, ft) \
do { \
ULARGE_INTEGER uiTemp; \
uiTemp.LowPart = (ft).dwLowDateTime; \
uiTemp.HighPart = (ft).dwHighDateTime; \
result = uiTemp.QuadPart; \
} while (0)
static void
initialize_utc_base (void)
{
/* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */
SYSTEMTIME st;
st.wYear = 1970;
st.wMonth = 1;
st.wDay = 1;
st.wHour = 0;
st.wMinute = 0;
st.wSecond = 0;
st.wMilliseconds = 0;
SystemTimeToFileTime (&st, &utc_base_ft);
FILETIME_TO_U64 (utc_base, utc_base_ft);
}
static time_t
convert_time (FILETIME ft)
{
ULONGLONG tmp;
if (!init)
{
initialize_utc_base ();
init = 1;
}
if (CompareFileTime (&ft, &utc_base_ft) < 0)
return 0;
FILETIME_TO_U64 (tmp, ft);
return (time_t) ((tmp - utc_base) / 10000000L);
}
static void
convert_from_timespec (struct timespec time, FILETIME * pft)
{
ULARGE_INTEGER tmp;
if (!init)
{
initialize_utc_base ();
init = 1;
}
/* time in 100ns units since 1-Jan-1601 */
tmp.QuadPart =
(ULONGLONG) time.tv_sec * 10000000L + time.tv_nsec / 100 + utc_base;
pft->dwHighDateTime = tmp.HighPart;
pft->dwLowDateTime = tmp.LowPart;
}
static PSECURITY_DESCRIPTOR
get_file_security_desc_by_handle (HANDLE h)
{
PSECURITY_DESCRIPTOR psd = NULL;
DWORD err;
SECURITY_INFORMATION si = OWNER_SECURITY_INFORMATION
| GROUP_SECURITY_INFORMATION /* | DACL_SECURITY_INFORMATION */ ;
err = get_security_info (h, SE_FILE_OBJECT, si,
NULL, NULL, NULL, NULL, &psd);
if (err != ERROR_SUCCESS)
return NULL;
return psd;
}
static PSECURITY_DESCRIPTOR
get_file_security_desc_by_name (const char *fname)
{
PSECURITY_DESCRIPTOR psd = NULL;
DWORD sd_len, err;
SECURITY_INFORMATION si = OWNER_SECURITY_INFORMATION
| GROUP_SECURITY_INFORMATION /* | DACL_SECURITY_INFORMATION */ ;
if (!get_file_security (fname, si, psd, 0, &sd_len))
{
err = GetLastError ();
if (err != ERROR_INSUFFICIENT_BUFFER)
return NULL;
}
psd = xmalloc (sd_len);
if (!get_file_security (fname, si, psd, sd_len, &sd_len))
{
xfree (psd);
return NULL;
}
return psd;
}
static DWORD
get_rid (PSID sid)
{
unsigned n_subauthorities;
/* Use the last sub-authority value of the RID, the relative
portion of the SID, as user/group ID. */
n_subauthorities = *get_sid_sub_authority_count (sid);
if (n_subauthorities < 1)
return 0; /* the "World" RID */
return *get_sid_sub_authority (sid, n_subauthorities - 1);
}
/* Caching SID and account values for faster lokup. */
struct w32_id {
unsigned rid;
struct w32_id *next;
char name[GNLEN+1];
unsigned char sid[FLEXIBLE_ARRAY_MEMBER];
};
static struct w32_id *w32_idlist;
static int
w32_cached_id (PSID sid, unsigned *id, char *name)
{
struct w32_id *tail, *found;
for (found = NULL, tail = w32_idlist; tail; tail = tail->next)
{
if (equal_sid ((PSID)tail->sid, sid))
{
found = tail;
break;
}
}
if (found)
{
*id = found->rid;
strcpy (name, found->name);
return 1;
}
else
return 0;
}
static void
w32_add_to_cache (PSID sid, unsigned id, char *name)
{
DWORD sid_len;
struct w32_id *new_entry;
/* We don't want to leave behind stale cache from when Emacs was
dumped. */
if (initialized)
{
sid_len = get_length_sid (sid);
new_entry = xmalloc (offsetof (struct w32_id, sid) + sid_len);
if (new_entry)
{
new_entry->rid = id;
strcpy (new_entry->name, name);
copy_sid (sid_len, (PSID)new_entry->sid, sid);
new_entry->next = w32_idlist;
w32_idlist = new_entry;
}
}
}
#define UID 1
#define GID 2
static int
get_name_and_id (PSECURITY_DESCRIPTOR psd, unsigned *id, char *nm, int what)
{
PSID sid = NULL;
BOOL dflt;
SID_NAME_USE ignore;
char name[UNLEN+1];
DWORD name_len = sizeof (name);
char domain[1024];
DWORD domain_len = sizeof (domain);
int use_dflt = 0;
int result;
if (what == UID)
result = get_security_descriptor_owner (psd, &sid, &dflt);
else if (what == GID)
result = get_security_descriptor_group (psd, &sid, &dflt);
else
result = 0;
if (!result || !is_valid_sid (sid))
use_dflt = 1;
else if (!w32_cached_id (sid, id, nm))
{
if (!lookup_account_sid (NULL, sid, name, &name_len,
domain, &domain_len, &ignore)
|| name_len > UNLEN+1)
use_dflt = 1;
else
{
*id = get_rid (sid);
strcpy (nm, name);
w32_add_to_cache (sid, *id, name);
}
}
return use_dflt;
}
static void
get_file_owner_and_group (PSECURITY_DESCRIPTOR psd, struct stat *st)
{
int dflt_usr = 0, dflt_grp = 0;
if (!psd)
{
dflt_usr = 1;
dflt_grp = 1;
}
else
{
if (get_name_and_id (psd, &st->st_uid, st->st_uname, UID))
dflt_usr = 1;
if (get_name_and_id (psd, &st->st_gid, st->st_gname, GID))
dflt_grp = 1;
}
/* Consider files to belong to current user/group, if we cannot get
more accurate information. */
if (dflt_usr)
{
st->st_uid = dflt_passwd.pw_uid;
strcpy (st->st_uname, dflt_passwd.pw_name);
}
if (dflt_grp)
{
st->st_gid = dflt_passwd.pw_gid;
strcpy (st->st_gname, dflt_group.gr_name);
}
}
/* Return non-zero if NAME is a potentially slow filesystem. */
int is_slow_fs (const char *);
int
is_slow_fs (const char *name)
{
char drive_root[4];
UINT devtype;
if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1]))
devtype = DRIVE_REMOTE; /* assume UNC name is remote */
else if (!(strlen (name) >= 2 && IS_DEVICE_SEP (name[1])))
devtype = GetDriveType (NULL); /* use root of current drive */
else
{
/* GetDriveType needs the root directory of the drive. */
strncpy (drive_root, name, 2);
drive_root[2] = '\\';
drive_root[3] = '\0';
devtype = GetDriveType (drive_root);
}
return !(devtype == DRIVE_FIXED || devtype == DRIVE_RAMDISK);
}
/* If this is non-zero, the caller wants accurate information about
file's owner and group, which could be expensive to get. dired.c
uses this flag when needed for the job at hand. */
int w32_stat_get_owner_group;
/* MSVC stat function can't cope with UNC names and has other bugs, so
replace it with our own. This also allows us to calculate consistent
inode values and owner/group without hacks in the main Emacs code,
and support file names encoded in UTF-8. */
static int
stat_worker (const char * path, struct stat * buf, int follow_symlinks)
{
char *name, *save_name, *r;
WIN32_FIND_DATAW wfd_w;
WIN32_FIND_DATAA wfd_a;
HANDLE fh;
unsigned __int64 fake_inode = 0;
int permission;
int len;
int rootdir = FALSE;
PSECURITY_DESCRIPTOR psd = NULL;
int is_a_symlink = 0;
DWORD file_flags = FILE_FLAG_BACKUP_SEMANTICS;
DWORD access_rights = 0;
DWORD fattrs = 0, serialnum = 0, fs_high = 0, fs_low = 0, nlinks = 1;
FILETIME ctime, atime, wtime;
wchar_t name_w[MAX_PATH];
char name_a[MAX_PATH];
if (path == NULL || buf == NULL)
{
errno = EFAULT;
return -1;
}
save_name = name = (char *) map_w32_filename (path, &path);
/* Must be valid filename, no wild cards or other invalid
characters. */
if (strpbrk (name, "*?|<>\""))
{
errno = ENOENT;
return -1;
}
len = strlen (name);
/* Allocate 1 extra byte so that we could append a slash to a root
directory, down below. */
name = strcpy (alloca (len + 2), name);
/* Avoid a somewhat costly call to is_symlink if the filesystem
doesn't support symlinks. */
if ((volume_info.flags & FILE_SUPPORTS_REPARSE_POINTS) != 0)
is_a_symlink = is_symlink (name);
/* Plan A: Open the file and get all the necessary information via
the resulting handle. This solves several issues in one blow:
. retrieves attributes for the target of a symlink, if needed
. gets attributes of root directories and symlinks pointing to
root directories, thus avoiding the need for special-casing
these and detecting them by examining the file-name format
. retrieves more accurate attributes (e.g., non-zero size for
some directories, esp. directories that are junction points)
. correctly resolves "c:/..", "/.." and similar file names
. avoids run-time penalties for 99% of use cases
Plan A is always tried first, unless the user asked not to (but
if the file is a symlink and we need to follow links, we try Plan
A even if the user asked not to).
If Plan A fails, we go to Plan B (below), where various
potentially expensive techniques must be used to handle "special"
files such as UNC volumes etc. */
if (!(NILP (Vw32_get_true_file_attributes)
|| (EQ (Vw32_get_true_file_attributes, Qlocal) && is_slow_fs (name)))
/* Following symlinks requires getting the info by handle. */
|| (is_a_symlink && follow_symlinks))
{
BY_HANDLE_FILE_INFORMATION info;
if (is_a_symlink && !follow_symlinks)
file_flags |= FILE_FLAG_OPEN_REPARSE_POINT;
/* READ_CONTROL access rights are required to get security info
by handle. But if the OS doesn't support security in the
first place, we don't need to try. */
if (is_windows_9x () != TRUE)
access_rights |= READ_CONTROL;
if (w32_unicode_filenames)
{
filename_to_utf16 (name, name_w);
fh = CreateFileW (name_w, access_rights, 0, NULL, OPEN_EXISTING,
file_flags, NULL);
/* If CreateFile fails with READ_CONTROL, try again with
zero as access rights. */
if (fh == INVALID_HANDLE_VALUE && access_rights)
fh = CreateFileW (name_w, 0, 0, NULL, OPEN_EXISTING,
file_flags, NULL);
}
else
{
filename_to_ansi (name, name_a);
fh = CreateFileA (name_a, access_rights, 0, NULL, OPEN_EXISTING,
file_flags, NULL);
if (fh == INVALID_HANDLE_VALUE && access_rights)
fh = CreateFileA (name_a, 0, 0, NULL, OPEN_EXISTING,
file_flags, NULL);
}
if (fh == INVALID_HANDLE_VALUE)
goto no_true_file_attributes;
/* This is more accurate in terms of getting the correct number
of links, but is quite slow (it is noticeable when Emacs is
making a list of file name completions). */
if (GetFileInformationByHandle (fh, &info))
{
nlinks = info.nNumberOfLinks;
/* Might as well use file index to fake inode values, but this
is not guaranteed to be unique unless we keep a handle open
all the time (even then there are situations where it is
not unique). Reputedly, there are at most 48 bits of info
(on NTFS, presumably less on FAT). */
fake_inode = info.nFileIndexHigh;
fake_inode <<= 32;
fake_inode += info.nFileIndexLow;
serialnum = info.dwVolumeSerialNumber;
fs_high = info.nFileSizeHigh;
fs_low = info.nFileSizeLow;
ctime = info.ftCreationTime;
atime = info.ftLastAccessTime;
wtime = info.ftLastWriteTime;
fattrs = info.dwFileAttributes;
}
else
{
/* We don't go to Plan B here, because it's not clear that
it's a good idea. The only known use case where
CreateFile succeeds, but GetFileInformationByHandle fails
(with ERROR_INVALID_FUNCTION) is for character devices
such as NUL, PRN, etc. For these, switching to Plan B is
a net loss, because we lose the character device
attribute returned by GetFileType below (FindFirstFile
doesn't set that bit in the attributes), and the other
fields don't make sense for character devices anyway.
Emacs doesn't really care for non-file entities in the
context of l?stat, so neither do we. */
/* w32err is assigned so one could put a breakpoint here and
examine its value, when GetFileInformationByHandle
fails. */
DWORD w32err = GetLastError ();
switch (w32err)
{
case ERROR_FILE_NOT_FOUND: /* can this ever happen? */
errno = ENOENT;
return -1;
}
}
/* Test for a symlink before testing for a directory, since
symlinks to directories have the directory bit set, but we
don't want them to appear as directories. */
if (is_a_symlink && !follow_symlinks)
buf->st_mode = S_IFLNK;
else if (fattrs & FILE_ATTRIBUTE_DIRECTORY)
buf->st_mode = S_IFDIR;
else
{
DWORD ftype = GetFileType (fh);
switch (ftype)
{
case FILE_TYPE_DISK:
buf->st_mode = S_IFREG;
break;
case FILE_TYPE_PIPE:
buf->st_mode = S_IFIFO;
break;
case FILE_TYPE_CHAR:
case FILE_TYPE_UNKNOWN:
default:
buf->st_mode = S_IFCHR;
}
}
/* We produce the fallback owner and group data, based on the
current user that runs Emacs, in the following cases:
. caller didn't request owner and group info
. this is Windows 9X
. getting security by handle failed, and we need to produce
information for the target of a symlink (this is better
than producing a potentially misleading info about the
symlink itself)
If getting security by handle fails, and we don't need to
resolve symlinks, we try getting security by name. */
if (!w32_stat_get_owner_group || is_windows_9x () == TRUE)
get_file_owner_and_group (NULL, buf);
else
{
psd = get_file_security_desc_by_handle (fh);
if (psd)
{
get_file_owner_and_group (psd, buf);
LocalFree (psd);
}
else if (!(is_a_symlink && follow_symlinks))
{
psd = get_file_security_desc_by_name (name);
get_file_owner_and_group (psd, buf);
xfree (psd);
}
else
get_file_owner_and_group (NULL, buf);
}
CloseHandle (fh);
}
else
{
no_true_file_attributes:
/* Plan B: Either getting a handle on the file failed, or the
caller explicitly asked us to not bother making this
information more accurate.
Implementation note: In Plan B, we never bother to resolve
symlinks, even if we got here because we tried Plan A and
failed. That's because, even if the caller asked for extra
precision by setting Vw32_get_true_file_attributes to t,
resolving symlinks requires acquiring a file handle to the
symlink, which we already know will fail. And if the user
did not ask for extra precision, resolving symlinks will fly
in the face of that request, since the user then wants the
lightweight version of the code. */
rootdir = (path >= save_name + len - 1
&& (IS_DIRECTORY_SEP (*path) || *path == 0));
/* If name is "c:/.." or "/.." then stat "c:/" or "/". */
r = IS_DEVICE_SEP (name[1]) ? &name[2] : name;
if (IS_DIRECTORY_SEP (r[0])
&& r[1] == '.' && r[2] == '.' && r[3] == '\0')
r[1] = r[2] = '\0';
/* Note: If NAME is a symlink to the root of a UNC volume
(i.e. "\\SERVER"), we will not detect that here, and we will
return data about the symlink as result of FindFirst below.
This is unfortunate, but that marginal use case does not
justify a call to chase_symlinks which would impose a penalty
on all the other use cases. (We get here for symlinks to
roots of UNC volumes because CreateFile above fails for them,
unlike with symlinks to root directories X:\ of drives.) */
if (is_unc_volume (name))
{
fattrs = unc_volume_file_attributes (name);
if (fattrs == -1)
return -1;
ctime = atime = wtime = utc_base_ft;
}
else if (rootdir)
{
/* Make sure root directories end in a slash. */
if (!IS_DIRECTORY_SEP (name[len-1]))
strcpy (name + len, "\\");
if (GetDriveType (name) < 2)
{
errno = ENOENT;
return -1;
}
fattrs = FILE_ATTRIBUTE_DIRECTORY;
ctime = atime = wtime = utc_base_ft;
}
else
{
int have_wfd = -1;
/* Make sure non-root directories do NOT end in a slash,
otherwise FindFirstFile might fail. */
if (IS_DIRECTORY_SEP (name[len-1]))
name[len - 1] = 0;
/* (This is hacky, but helps when doing file completions on
network drives.) Optimize by using information available from
active readdir if possible. */
len = strlen (dir_pathname);
if (IS_DIRECTORY_SEP (dir_pathname[len-1]))
len--;
if (dir_find_handle != INVALID_HANDLE_VALUE
&& last_dir_find_data != -1
&& !(is_a_symlink && follow_symlinks)
/* The 2 file-name comparisons below support only ASCII
characters, and will lose (compare not equal) when
the file names include non-ASCII characters that are
the same but for the case. However, doing this
properly involves: (a) converting both file names to
UTF-16, (b) lower-casing both names using CharLowerW,
and (c) comparing the results; this would be quite a
bit slower, whereas Plan B is for users who want
lightweight albeit inaccurate version of 'stat'. */
&& c_strncasecmp (save_name, dir_pathname, len) == 0
&& IS_DIRECTORY_SEP (name[len])
&& xstrcasecmp (name + len + 1, dir_static.d_name) == 0)
{
have_wfd = last_dir_find_data;
/* This was the last entry returned by readdir. */
if (last_dir_find_data == DIR_FIND_DATA_W)
wfd_w = dir_find_data_w;
else
wfd_a = dir_find_data_a;
}
else
{
logon_network_drive (name);
if (w32_unicode_filenames)
{
filename_to_utf16 (name, name_w);
fh = FindFirstFileW (name_w, &wfd_w);
have_wfd = DIR_FIND_DATA_W;
}
else
{
filename_to_ansi (name, name_a);
/* If NAME includes characters not representable by
the current ANSI codepage, filename_to_ansi
usually replaces them with a '?'. We don't want
to let FindFirstFileA interpret those as wildcards,
and "succeed", returning us data from some random
file in the same directory. */
if (_mbspbrk (name_a, "?"))
fh = INVALID_HANDLE_VALUE;
else
fh = FindFirstFileA (name_a, &wfd_a);
have_wfd = DIR_FIND_DATA_A;
}
if (fh == INVALID_HANDLE_VALUE)
{
errno = ENOENT;
return -1;
}
FindClose (fh);
}
/* Note: if NAME is a symlink, the information we get from
FindFirstFile is for the symlink, not its target. */
if (have_wfd == DIR_FIND_DATA_W)
{
fattrs = wfd_w.dwFileAttributes;
ctime = wfd_w.ftCreationTime;
atime = wfd_w.ftLastAccessTime;
wtime = wfd_w.ftLastWriteTime;
fs_high = wfd_w.nFileSizeHigh;
fs_low = wfd_w.nFileSizeLow;
}
else
{
fattrs = wfd_a.dwFileAttributes;
ctime = wfd_a.ftCreationTime;
atime = wfd_a.ftLastAccessTime;
wtime = wfd_a.ftLastWriteTime;
fs_high = wfd_a.nFileSizeHigh;
fs_low = wfd_a.nFileSizeLow;
}
fake_inode = 0;
nlinks = 1;
serialnum = volume_info.serialnum;
}
if (is_a_symlink && !follow_symlinks)
buf->st_mode = S_IFLNK;
else if (fattrs & FILE_ATTRIBUTE_DIRECTORY)
buf->st_mode = S_IFDIR;
else
buf->st_mode = S_IFREG;
get_file_owner_and_group (NULL, buf);
}
buf->st_ino = fake_inode;
buf->st_dev = serialnum;
buf->st_rdev = serialnum;
buf->st_size = fs_high;
buf->st_size <<= 32;
buf->st_size += fs_low;
buf->st_nlink = nlinks;
/* Convert timestamps to Unix format. */
buf->st_mtime = convert_time (wtime);
buf->st_atime = convert_time (atime);
if (buf->st_atime == 0) buf->st_atime = buf->st_mtime;
buf->st_ctime = convert_time (ctime);
if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime;
/* determine rwx permissions */
if (is_a_symlink && !follow_symlinks)
permission = S_IREAD | S_IWRITE | S_IEXEC; /* Posix expectations */
else
{
if (fattrs & FILE_ATTRIBUTE_READONLY)
permission = S_IREAD;
else
permission = S_IREAD | S_IWRITE;
if (fattrs & FILE_ATTRIBUTE_DIRECTORY)
permission |= S_IEXEC;
else if (is_exec (name))
permission |= S_IEXEC;
}
buf->st_mode |= permission | (permission >> 3) | (permission >> 6);
return 0;
}
int
stat (const char * path, struct stat * buf)
{
return stat_worker (path, buf, 1);
}
int
lstat (const char * path, struct stat * buf)
{
return stat_worker (path, buf, 0);
}
int
fstatat (int fd, char const *name, struct stat *st, int flags)
{
/* Rely on a hack: an open directory is modeled as file descriptor 0.
This is good enough for the current usage in Emacs, but is fragile.
FIXME: Add proper support for fdopendir, fstatat, readlinkat.
Gnulib does this and can serve as a model. */
char fullname[MAX_UTF8_PATH];
if (fd != AT_FDCWD)
{
char lastc = dir_pathname[strlen (dir_pathname) - 1];
if (_snprintf (fullname, sizeof fullname, "%s%s%s",
dir_pathname, IS_DIRECTORY_SEP (lastc) ? "" : "/", name)
< 0)
{
errno = ENAMETOOLONG;
return -1;
}
name = fullname;
}
return stat_worker (name, st, ! (flags & AT_SYMLINK_NOFOLLOW));
}
/* Provide fstat and utimensat as well as stat for consistent handling
of file timestamps. */
int
fstat (int desc, struct stat * buf)
{
HANDLE fh = (HANDLE) _get_osfhandle (desc);
BY_HANDLE_FILE_INFORMATION info;
unsigned __int64 fake_inode;
int permission;
switch (GetFileType (fh) & ~FILE_TYPE_REMOTE)
{
case FILE_TYPE_DISK:
buf->st_mode = S_IFREG;
if (!GetFileInformationByHandle (fh, &info))
{
errno = EACCES;
return -1;
}
break;
case FILE_TYPE_PIPE:
buf->st_mode = S_IFIFO;
goto non_disk;
case FILE_TYPE_CHAR:
case FILE_TYPE_UNKNOWN:
default:
buf->st_mode = S_IFCHR;
non_disk:
memset (&info, 0, sizeof (info));
info.dwFileAttributes = 0;
info.ftCreationTime = utc_base_ft;
info.ftLastAccessTime = utc_base_ft;
info.ftLastWriteTime = utc_base_ft;
}
if (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
buf->st_mode = S_IFDIR;
buf->st_nlink = info.nNumberOfLinks;
/* Might as well use file index to fake inode values, but this
is not guaranteed to be unique unless we keep a handle open
all the time (even then there are situations where it is
not unique). Reputedly, there are at most 48 bits of info
(on NTFS, presumably less on FAT). */
fake_inode = info.nFileIndexHigh;
fake_inode <<= 32;
fake_inode += info.nFileIndexLow;
/* MSVC defines _ino_t to be short; other libc's might not. */
if (sizeof (buf->st_ino) == 2)
buf->st_ino = fake_inode ^ (fake_inode >> 16);
else
buf->st_ino = fake_inode;
/* If the caller so requested, get the true file owner and group.
Otherwise, consider the file to belong to the current user. */
if (!w32_stat_get_owner_group || is_windows_9x () == TRUE)
get_file_owner_and_group (NULL, buf);
else
{
PSECURITY_DESCRIPTOR psd = NULL;
psd = get_file_security_desc_by_handle (fh);
if (psd)
{
get_file_owner_and_group (psd, buf);
LocalFree (psd);
}
else
get_file_owner_and_group (NULL, buf);
}
buf->st_dev = info.dwVolumeSerialNumber;
buf->st_rdev = info.dwVolumeSerialNumber;
buf->st_size = info.nFileSizeHigh;
buf->st_size <<= 32;
buf->st_size += info.nFileSizeLow;
/* Convert timestamps to Unix format. */
buf->st_mtime = convert_time (info.ftLastWriteTime);
buf->st_atime = convert_time (info.ftLastAccessTime);
if (buf->st_atime == 0) buf->st_atime = buf->st_mtime;
buf->st_ctime = convert_time (info.ftCreationTime);
if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime;
/* determine rwx permissions */
if (info.dwFileAttributes & FILE_ATTRIBUTE_READONLY)
permission = S_IREAD;
else
permission = S_IREAD | S_IWRITE;
if (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
permission |= S_IEXEC;
else
{
#if 0 /* no way of knowing the filename */
char * p = strrchr (name, '.');
if (p != NULL &&
(xstrcasecmp (p, ".exe") == 0 ||
xstrcasecmp (p, ".com") == 0 ||
xstrcasecmp (p, ".bat") == 0 ||
xstrcasecmp (p, ".cmd") == 0))
permission |= S_IEXEC;
#endif
}
buf->st_mode |= permission | (permission >> 3) | (permission >> 6);
return 0;
}
/* Emulate utimensat. */
int
utimensat (int fd, const char *name, const struct timespec times[2], int flag)
{
struct timespec ltimes[2];
HANDLE fh;
FILETIME mtime;
FILETIME atime;
DWORD flags_and_attrs = FILE_FLAG_BACKUP_SEMANTICS;
/* Rely on a hack: an open directory is modeled as file descriptor 0.
This is good enough for the current usage in Emacs, but is fragile.
FIXME: Add proper support for utimensat.
Gnulib does this and can serve as a model. */
char fullname[MAX_UTF8_PATH];
if (fd != AT_FDCWD)
{
char lastc = dir_pathname[strlen (dir_pathname) - 1];
if (_snprintf (fullname, sizeof fullname, "%s%s%s",
dir_pathname, IS_DIRECTORY_SEP (lastc) ? "" : "/", name)
< 0)
{
errno = ENAMETOOLONG;
return -1;
}
name = fullname;
}
if (times == NULL)
{
memset (ltimes, 0, sizeof (ltimes));
ltimes[0] = ltimes[1] = current_timespec ();
}
else
{
if (times[0].tv_nsec == UTIME_OMIT && times[1].tv_nsec == UTIME_OMIT)
return 0; /* nothing to do */
if ((times[0].tv_nsec != UTIME_NOW && times[0].tv_nsec != UTIME_OMIT
&& !(0 <= times[0].tv_nsec && times[0].tv_nsec < 1000000000))
|| (times[1].tv_nsec != UTIME_NOW && times[1].tv_nsec != UTIME_OMIT
&& !(0 <= times[1].tv_nsec && times[1].tv_nsec < 1000000000)))
{
errno = EINVAL; /* reject invalid timespec values */
return -1;
}
memcpy (ltimes, times, sizeof (ltimes));
if (ltimes[0].tv_nsec == UTIME_NOW)
ltimes[0] = current_timespec ();
if (ltimes[1].tv_nsec == UTIME_NOW)
ltimes[1] = current_timespec ();
}
if (flag == AT_SYMLINK_NOFOLLOW)
flags_and_attrs |= FILE_FLAG_OPEN_REPARSE_POINT;
if (w32_unicode_filenames)
{
wchar_t name_utf16[MAX_PATH];
if (filename_to_utf16 (name, name_utf16) != 0)
return -1; /* errno set by filename_to_utf16 */
/* Need write access to set times. */
fh = CreateFileW (name_utf16, FILE_WRITE_ATTRIBUTES,
/* If NAME specifies a directory, FILE_SHARE_DELETE
allows other processes to delete files inside it,
while we have the directory open. */
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
0, OPEN_EXISTING, flags_and_attrs, NULL);
}
else
{
char name_ansi[MAX_PATH];
if (filename_to_ansi (name, name_ansi) != 0)
return -1; /* errno set by filename_to_ansi */
fh = CreateFileA (name_ansi, FILE_WRITE_ATTRIBUTES,
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
0, OPEN_EXISTING, flags_and_attrs, NULL);
}
if (fh != INVALID_HANDLE_VALUE)
{
FILETIME *patime, *pmtime;
if (ltimes[0].tv_nsec == UTIME_OMIT)
patime = NULL;
else
{
convert_from_timespec (ltimes[0], &atime);
patime = &atime;
}
if (ltimes[1].tv_nsec == UTIME_OMIT)
pmtime = NULL;
else
{
convert_from_timespec (ltimes[1], &mtime);
pmtime = &mtime;
}
if (!SetFileTime (fh, NULL, patime, pmtime))
{
CloseHandle (fh);
errno = EACCES;
return -1;
}
CloseHandle (fh);
}
else
{
DWORD err = GetLastError ();
switch (err)
{
case ERROR_FILE_NOT_FOUND:
case ERROR_PATH_NOT_FOUND:
case ERROR_INVALID_DRIVE:
case ERROR_BAD_NETPATH:
case ERROR_DEV_NOT_EXIST:
/* ERROR_INVALID_NAME is the error CreateFile sets when the
file name includes ?s, i.e. translation to ANSI failed. */
case ERROR_INVALID_NAME:
errno = ENOENT;
break;
case ERROR_TOO_MANY_OPEN_FILES:
errno = ENFILE;
break;
case ERROR_ACCESS_DENIED:
case ERROR_SHARING_VIOLATION:
errno = EACCES;
break;
default:
errno = EINVAL;
break;
}
return -1;
}
return 0;
}
int
sys_umask (int mode)
{
static int current_mask;
int retval, arg = 0;
/* The only bit we really support is the write bit. Files are
always readable on MS-Windows, and the execute bit does not exist
at all. */
/* FIXME: if the GROUP and OTHER bits are reset, we should use ACLs
to prevent access by other users on NTFS. */
if ((mode & S_IWRITE) != 0)
arg |= S_IWRITE;
retval = _umask (arg);
/* Merge into the return value the bits they've set the last time,
which msvcrt.dll ignores and never returns. Emacs insists on its
notion of mask being identical to what we return. */
retval |= (current_mask & ~S_IWRITE);
current_mask = mode;
return retval;
}
\f
/* Symlink-related functions. */
#ifndef SYMBOLIC_LINK_FLAG_DIRECTORY
#define SYMBOLIC_LINK_FLAG_DIRECTORY 0x1
#endif
int
symlink (char const *filename, char const *linkname)
{
char linkfn[MAX_UTF8_PATH], *tgtfn;
DWORD flags = 0;
int dir_access, filename_ends_in_slash;
/* Diagnostics follows Posix as much as possible. */
if (filename == NULL || linkname == NULL)
{
errno = EFAULT;
return -1;
}
if (!*filename)
{
errno = ENOENT;
return -1;
}
if (strlen (filename) > MAX_UTF8_PATH || strlen (linkname) > MAX_UTF8_PATH)
{
errno = ENAMETOOLONG;
return -1;
}
strcpy (linkfn, map_w32_filename (linkname, NULL));
if ((volume_info.flags & FILE_SUPPORTS_REPARSE_POINTS) == 0)
{
errno = EPERM;
return -1;
}
/* Note: since empty FILENAME was already rejected, we can safely
refer to FILENAME[1]. */
if (!(IS_DIRECTORY_SEP (filename[0]) || IS_DEVICE_SEP (filename[1])))
{
/* Non-absolute FILENAME is understood as being relative to
LINKNAME's directory. We need to prepend that directory to
FILENAME to get correct results from faccessat below, since
otherwise it will interpret FILENAME relative to the
directory where the Emacs process runs. Note that
make-symbolic-link always makes sure LINKNAME is a fully
expanded file name. */
char tem[MAX_UTF8_PATH];
char *p = linkfn + strlen (linkfn);
while (p > linkfn && !IS_ANY_SEP (p[-1]))
p--;
if (p > linkfn)
strncpy (tem, linkfn, p - linkfn);
strcpy (tem + (p - linkfn), filename);
dir_access = faccessat (AT_FDCWD, tem, D_OK, AT_EACCESS);
}
else
dir_access = faccessat (AT_FDCWD, filename, D_OK, AT_EACCESS);
/* Since Windows distinguishes between symlinks to directories and
to files, we provide a kludgy feature: if FILENAME doesn't
exist, but ends in a slash, we create a symlink to directory. If
FILENAME exists and is a directory, we always create a symlink to
directory. */
filename_ends_in_slash = IS_DIRECTORY_SEP (filename[strlen (filename) - 1]);
if (dir_access == 0 || filename_ends_in_slash)
flags = SYMBOLIC_LINK_FLAG_DIRECTORY;
tgtfn = (char *)map_w32_filename (filename, NULL);
if (filename_ends_in_slash)
tgtfn[strlen (tgtfn) - 1] = '\0';
errno = 0;
if (!create_symbolic_link (linkfn, tgtfn, flags))
{
/* ENOSYS is set by create_symbolic_link, when it detects that
the OS doesn't support the CreateSymbolicLink API. */
if (errno != ENOSYS)
{
DWORD w32err = GetLastError ();
switch (w32err)
{
/* ERROR_SUCCESS is sometimes returned when LINKFN and
TGTFN point to the same file name, go figure. */
case ERROR_SUCCESS:
case ERROR_FILE_EXISTS:
errno = EEXIST;
break;
case ERROR_ACCESS_DENIED:
errno = EACCES;
break;
case ERROR_FILE_NOT_FOUND:
case ERROR_PATH_NOT_FOUND:
case ERROR_BAD_NETPATH:
case ERROR_INVALID_REPARSE_DATA:
errno = ENOENT;
break;
case ERROR_DIRECTORY:
errno = EISDIR;
break;
case ERROR_PRIVILEGE_NOT_HELD:
case ERROR_NOT_ALL_ASSIGNED:
errno = EPERM;
break;
case ERROR_DISK_FULL:
errno = ENOSPC;
break;
default:
errno = EINVAL;
break;
}
}
return -1;
}
return 0;
}
/* A quick inexpensive test of whether FILENAME identifies a file that
is a symlink. Returns non-zero if it is, zero otherwise. FILENAME
must already be in the normalized form returned by
map_w32_filename. If the symlink is to a directory, the
FILE_ATTRIBUTE_DIRECTORY bit will be set in the return value.
Note: for repeated operations on many files, it is best to test
whether the underlying volume actually supports symlinks, by
testing the FILE_SUPPORTS_REPARSE_POINTS bit in volume's flags, and
avoid the call to this function if it doesn't. That's because the
call to GetFileAttributes takes a non-negligible time, especially
on non-local or removable filesystems. See stat_worker for an
example of how to do that. */
static int
is_symlink (const char *filename)
{
DWORD attrs;
wchar_t filename_w[MAX_PATH];
char filename_a[MAX_PATH];
WIN32_FIND_DATAW wfdw;
WIN32_FIND_DATAA wfda;
HANDLE fh;
int attrs_mean_symlink;
if (w32_unicode_filenames)
{
filename_to_utf16 (filename, filename_w);
attrs = GetFileAttributesW (filename_w);
}
else
{
filename_to_ansi (filename, filename_a);
attrs = GetFileAttributesA (filename_a);
}
if (attrs == -1)
{
DWORD w32err = GetLastError ();
switch (w32err)
{
case ERROR_BAD_NETPATH: /* network share, can't be a symlink */
break;
case ERROR_ACCESS_DENIED:
errno = EACCES;
break;
case ERROR_FILE_NOT_FOUND:
case ERROR_PATH_NOT_FOUND:
default:
errno = ENOENT;
break;
}
return 0;
}
if ((attrs & FILE_ATTRIBUTE_REPARSE_POINT) == 0)
return 0;
logon_network_drive (filename);
if (w32_unicode_filenames)
{
fh = FindFirstFileW (filename_w, &wfdw);
attrs_mean_symlink =
(wfdw.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) != 0
&& (wfdw.dwReserved0 & IO_REPARSE_TAG_SYMLINK) == IO_REPARSE_TAG_SYMLINK;
if (attrs_mean_symlink)
attrs_mean_symlink |= (wfdw.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
}
else if (_mbspbrk (filename_a, "?"))
{
/* filename_to_ansi failed to convert the file name. */
errno = ENOENT;
return 0;
}
else
{
fh = FindFirstFileA (filename_a, &wfda);
attrs_mean_symlink =
(wfda.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) != 0
&& (wfda.dwReserved0 & IO_REPARSE_TAG_SYMLINK) == IO_REPARSE_TAG_SYMLINK;
if (attrs_mean_symlink)
attrs_mean_symlink |= (wfda.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
}
if (fh == INVALID_HANDLE_VALUE)
return 0;
FindClose (fh);
return attrs_mean_symlink;
}
/* If NAME identifies a symbolic link, copy into BUF the file name of
the symlink's target. Copy at most BUF_SIZE bytes, and do NOT
null-terminate the target name, even if it fits. Return the number
of bytes copied, or -1 if NAME is not a symlink or any error was
encountered while resolving it. The file name copied into BUF is
encoded in the current ANSI codepage. */
ssize_t
readlink (const char *name, char *buf, size_t buf_size)
{
const char *path;
TOKEN_PRIVILEGES privs;
int restore_privs = 0;
HANDLE sh;
ssize_t retval;
char resolved[MAX_UTF8_PATH];
if (name == NULL)
{
errno = EFAULT;
return -1;
}
if (!*name)
{
errno = ENOENT;
return -1;
}
path = map_w32_filename (name, NULL);
if (strlen (path) > MAX_UTF8_PATH)
{
errno = ENAMETOOLONG;
return -1;
}
errno = 0;
if (is_windows_9x () == TRUE
|| (volume_info.flags & FILE_SUPPORTS_REPARSE_POINTS) == 0
|| !is_symlink (path))
{
if (!errno)
errno = EINVAL; /* not a symlink */
return -1;
}
/* Done with simple tests, now we're in for some _real_ work. */
if (enable_privilege (SE_BACKUP_NAME, TRUE, &privs))
restore_privs = 1;
/* Implementation note: From here and onward, don't return early,
since that will fail to restore the original set of privileges of
the calling thread. */
retval = -1; /* not too optimistic, are we? */
/* Note: In the next call to CreateFile, we use zero as the 2nd
argument because, when the symlink is a hidden/system file,
e.g. 'C:\Users\All Users', GENERIC_READ fails with
ERROR_ACCESS_DENIED. Zero seems to work just fine, both for file
and directory symlinks. */
if (w32_unicode_filenames)
{
wchar_t path_w[MAX_PATH];
filename_to_utf16 (path, path_w);
sh = CreateFileW (path_w, 0, 0, NULL, OPEN_EXISTING,
FILE_FLAG_OPEN_REPARSE_POINT
| FILE_FLAG_BACKUP_SEMANTICS,
NULL);
}
else
{
char path_a[MAX_PATH];
filename_to_ansi (path, path_a);
sh = CreateFileA (path_a, 0, 0, NULL, OPEN_EXISTING,
FILE_FLAG_OPEN_REPARSE_POINT
| FILE_FLAG_BACKUP_SEMANTICS,
NULL);
}
if (sh != INVALID_HANDLE_VALUE)
{
BYTE reparse_buf[MAXIMUM_REPARSE_DATA_BUFFER_SIZE];
REPARSE_DATA_BUFFER *reparse_data = (REPARSE_DATA_BUFFER *)&reparse_buf[0];
DWORD retbytes;
if (!DeviceIoControl (sh, FSCTL_GET_REPARSE_POINT, NULL, 0,
reparse_buf, MAXIMUM_REPARSE_DATA_BUFFER_SIZE,
&retbytes, NULL))
errno = EIO;
else if (reparse_data->ReparseTag != IO_REPARSE_TAG_SYMLINK)
errno = EINVAL;
else
{
/* Copy the link target name, in wide characters, from
reparse_data, then convert it to multibyte encoding in
the current locale's codepage. */
WCHAR *lwname;
size_t lname_size;
USHORT lwname_len =
reparse_data->SymbolicLinkReparseBuffer.PrintNameLength;
WCHAR *lwname_src =
reparse_data->SymbolicLinkReparseBuffer.PathBuffer
+ reparse_data->SymbolicLinkReparseBuffer.PrintNameOffset/sizeof(WCHAR);
size_t size_to_copy = buf_size;
/* According to MSDN, PrintNameLength does not include the
terminating null character. */
lwname = alloca ((lwname_len + 1) * sizeof(WCHAR));
memcpy (lwname, lwname_src, lwname_len);
lwname[lwname_len/sizeof(WCHAR)] = 0; /* null-terminate */
filename_from_utf16 (lwname, resolved);
dostounix_filename (resolved);
lname_size = strlen (resolved) + 1;
if (lname_size <= buf_size)
size_to_copy = lname_size;
memcpy (buf, resolved, size_to_copy);
/* Success! */
retval = size_to_copy;
}
CloseHandle (sh);
}
else
{
/* CreateFile failed. */
DWORD w32err2 = GetLastError ();
switch (w32err2)
{
case ERROR_FILE_NOT_FOUND:
case ERROR_PATH_NOT_FOUND:
errno = ENOENT;
break;
case ERROR_ACCESS_DENIED:
case ERROR_TOO_MANY_OPEN_FILES:
errno = EACCES;
break;
default:
errno = EPERM;
break;
}
}
if (restore_privs)
{
restore_privilege (&privs);
revert_to_self ();
}
return retval;
}
ssize_t
readlinkat (int fd, char const *name, char *buffer,
size_t buffer_size)
{
/* Rely on a hack: an open directory is modeled as file descriptor 0,
as in fstatat. FIXME: Add proper support for readlinkat. */
char fullname[MAX_UTF8_PATH];
if (fd != AT_FDCWD)
{
if (_snprintf (fullname, sizeof fullname, "%s/%s", dir_pathname, name)
< 0)
{
errno = ENAMETOOLONG;
return -1;
}
name = fullname;
}
return readlink (name, buffer, buffer_size);
}
/* If FILE is a symlink, return its target (stored in a static
buffer); otherwise return FILE.
This function repeatedly resolves symlinks in the last component of
a chain of symlink file names, as in foo -> bar -> baz -> ...,
until it arrives at a file whose last component is not a symlink,
or some error occurs. It returns the target of the last
successfully resolved symlink in the chain. If it succeeds to
resolve even a single symlink, the value returned is an absolute
file name with backslashes (result of GetFullPathName). By
contrast, if the original FILE is returned, it is unaltered.
Note: This function can set errno even if it succeeds.
Implementation note: we only resolve the last portion ("basename")
of the argument FILE and of each following file in the chain,
disregarding any possible symlinks in its leading directories.
This is because Windows system calls and library functions
transparently resolve symlinks in leading directories and return
correct information, as long as the basename is not a symlink. */
static char *
chase_symlinks (const char *file)
{
static char target[MAX_UTF8_PATH];
char link[MAX_UTF8_PATH];
wchar_t target_w[MAX_PATH], link_w[MAX_PATH];
char target_a[MAX_PATH], link_a[MAX_PATH];
ssize_t res, link_len;
int loop_count = 0;
if (is_windows_9x () == TRUE || !is_symlink (file))
return (char *)file;
if (w32_unicode_filenames)
{
wchar_t file_w[MAX_PATH];
filename_to_utf16 (file, file_w);
if (GetFullPathNameW (file_w, MAX_PATH, link_w, NULL) == 0)
return (char *)file;
filename_from_utf16 (link_w, link);
}
else
{
char file_a[MAX_PATH];
filename_to_ansi (file, file_a);
if (GetFullPathNameA (file_a, MAX_PATH, link_a, NULL) == 0)
return (char *)file;
filename_from_ansi (link_a, link);
}
link_len = strlen (link);
target[0] = '\0';
do {
/* Remove trailing slashes, as we want to resolve the last
non-trivial part of the link name. */
while (link_len > 3 && IS_DIRECTORY_SEP (link[link_len-1]))
link[link_len--] = '\0';
res = readlink (link, target, MAX_UTF8_PATH);
if (res > 0)
{
target[res] = '\0';
if (!(IS_DEVICE_SEP (target[1])
|| (IS_DIRECTORY_SEP (target[0]) && IS_DIRECTORY_SEP (target[1]))))
{
/* Target is relative. Append it to the directory part of
the symlink, then copy the result back to target. */
char *p = link + link_len;
while (p > link && !IS_ANY_SEP (p[-1]))
p--;
strcpy (p, target);
strcpy (target, link);
}
/* Resolve any "." and ".." to get a fully-qualified file name
in link[] again. */
if (w32_unicode_filenames)
{
filename_to_utf16 (target, target_w);
link_len = GetFullPathNameW (target_w, MAX_PATH, link_w, NULL);
if (link_len > 0)
filename_from_utf16 (link_w, link);
}
else
{
filename_to_ansi (target, target_a);
link_len = GetFullPathNameA (target_a, MAX_PATH, link_a, NULL);
if (link_len > 0)
filename_from_ansi (link_a, link);
}
link_len = strlen (link);
}
} while (res > 0 && link_len > 0 && ++loop_count <= 100);
if (loop_count > 100)
errno = ELOOP;
if (target[0] == '\0') /* not a single call to readlink succeeded */
return (char *)file;
return target;
}
\f
/* Posix ACL emulation. */
int
acl_valid (acl_t acl)
{
return is_valid_security_descriptor ((PSECURITY_DESCRIPTOR)acl) ? 0 : -1;
}
char * ATTRIBUTE_MALLOC
acl_to_text (acl_t acl, ssize_t *size)
{
LPTSTR str_acl;
SECURITY_INFORMATION flags =
OWNER_SECURITY_INFORMATION |
GROUP_SECURITY_INFORMATION |
DACL_SECURITY_INFORMATION;
char *retval = NULL;
ULONG local_size;
int e = errno;
errno = 0;
if (convert_sd_to_sddl ((PSECURITY_DESCRIPTOR)acl, SDDL_REVISION_1, flags, &str_acl, &local_size))
{
errno = e;
/* We don't want to mix heaps, so we duplicate the string in our
heap and free the one allocated by the API. */
retval = xstrdup (str_acl);
if (size)
*size = local_size;
LocalFree (str_acl);
}
else if (errno != ENOTSUP)
errno = EINVAL;
return retval;
}
acl_t
acl_from_text (const char *acl_str)
{
PSECURITY_DESCRIPTOR psd, retval = NULL;
ULONG sd_size;
int e = errno;
errno = 0;
if (convert_sddl_to_sd (acl_str, SDDL_REVISION_1, &psd, &sd_size))
{
errno = e;
retval = xmalloc (sd_size);
memcpy (retval, psd, sd_size);
LocalFree (psd);
}
else if (errno != ENOTSUP)
errno = EINVAL;
return retval;
}
int
acl_free (void *ptr)
{
xfree (ptr);
return 0;
}
acl_t
acl_get_file (const char *fname, acl_type_t type)
{
PSECURITY_DESCRIPTOR psd = NULL;
const char *filename;
if (type == ACL_TYPE_ACCESS)
{
DWORD sd_len, err;
SECURITY_INFORMATION si =
OWNER_SECURITY_INFORMATION |
GROUP_SECURITY_INFORMATION |
DACL_SECURITY_INFORMATION ;
int e = errno;
filename = map_w32_filename (fname, NULL);
if ((volume_info.flags & FILE_SUPPORTS_REPARSE_POINTS) != 0)
fname = chase_symlinks (filename);
else
fname = filename;
errno = 0;
if (!get_file_security (fname, si, psd, 0, &sd_len)
&& errno != ENOTSUP)
{
err = GetLastError ();
if (err == ERROR_INSUFFICIENT_BUFFER)
{
psd = xmalloc (sd_len);
if (!get_file_security (fname, si, psd, sd_len, &sd_len))
{
xfree (psd);
err = GetLastError ();
if (err == ERROR_NOT_SUPPORTED
|| err == ERROR_ACCESS_DENIED)
errno = ENOTSUP;
else if (err == ERROR_FILE_NOT_FOUND
|| err == ERROR_PATH_NOT_FOUND
|| err == ERROR_INVALID_NAME)
errno = ENOENT;
else
errno = EIO;
psd = NULL;
}
}
else if (err == ERROR_FILE_NOT_FOUND
|| err == ERROR_PATH_NOT_FOUND
/* ERROR_INVALID_NAME is what we get if
w32-unicode-filenames is nil and the file cannot
be encoded in the current ANSI codepage. */
|| err == ERROR_INVALID_NAME)
errno = ENOENT;
else if (err == ERROR_NOT_SUPPORTED
/* ERROR_ACCESS_DENIED is what we get for a volume
mounted by WebDAV, which evidently doesn't
support ACLs. */
|| err == ERROR_ACCESS_DENIED)
errno = ENOTSUP;
else
errno = EIO;
}
else if (!errno)
errno = e;
}
else if (type != ACL_TYPE_DEFAULT)
errno = EINVAL;
return psd;
}
int
acl_set_file (const char *fname, acl_type_t type, acl_t acl)
{
TOKEN_PRIVILEGES old1, old2;
DWORD err;
int st = 0, retval = -1;
SECURITY_INFORMATION flags = 0;
PSID psidOwner, psidGroup;
PACL pacl;
BOOL dflt;
BOOL dacl_present;
int e;
const char *filename;
if (acl_valid (acl) != 0
|| (type != ACL_TYPE_DEFAULT && type != ACL_TYPE_ACCESS))
{
errno = EINVAL;
return -1;
}
if (type == ACL_TYPE_DEFAULT)
{
errno = ENOSYS;
return -1;
}
filename = map_w32_filename (fname, NULL);
if ((volume_info.flags & FILE_SUPPORTS_REPARSE_POINTS) != 0)
fname = chase_symlinks (filename);
else
fname = filename;
if (get_security_descriptor_owner ((PSECURITY_DESCRIPTOR)acl, &psidOwner,
&dflt)
&& psidOwner)
flags |= OWNER_SECURITY_INFORMATION;
if (get_security_descriptor_group ((PSECURITY_DESCRIPTOR)acl, &psidGroup,
&dflt)
&& psidGroup)
flags |= GROUP_SECURITY_INFORMATION;
if (get_security_descriptor_dacl ((PSECURITY_DESCRIPTOR)acl, &dacl_present,
&pacl, &dflt)
&& dacl_present)
flags |= DACL_SECURITY_INFORMATION;
if (!flags)
return 0;
/* According to KB-245153, setting the owner will succeed if either:
(1) the caller is the user who will be the new owner, and has the
SE_TAKE_OWNERSHIP privilege, or
(2) the caller has the SE_RESTORE privilege, in which case she can
set any valid user or group as the owner
We request below both SE_TAKE_OWNERSHIP and SE_RESTORE
privileges, and disregard any failures in obtaining them. If
these privileges cannot be obtained, and do not already exist in
the calling thread's security token, this function could fail
with EPERM. */
if (enable_privilege (SE_TAKE_OWNERSHIP_NAME, TRUE, &old1))
st++;
if (enable_privilege (SE_RESTORE_NAME, TRUE, &old2))
st++;
e = errno;
errno = 0;
/* SetFileSecurity is deprecated by MS, and sometimes fails when
DACL inheritance is involved, but it seems to preserve ownership
better than SetNamedSecurityInfo, which is important e.g., in
copy-file. */
if (!set_file_security (fname, flags, (PSECURITY_DESCRIPTOR)acl))
{
err = GetLastError ();
if (errno != ENOTSUP)
err = set_named_security_info (fname, SE_FILE_OBJECT, flags,
psidOwner, psidGroup, pacl, NULL);
}
else
err = ERROR_SUCCESS;
if (err != ERROR_SUCCESS)
{
if (errno == ENOTSUP)
;
else if (err == ERROR_INVALID_OWNER
|| err == ERROR_NOT_ALL_ASSIGNED
|| err == ERROR_ACCESS_DENIED)
{
/* Maybe the requested ACL and the one the file already has
are identical, in which case we can silently ignore the
failure. (And no, Windows doesn't.) */
acl_t current_acl = acl_get_file (fname, ACL_TYPE_ACCESS);
errno = EPERM;
if (current_acl)
{
char *acl_from = acl_to_text (current_acl, NULL);
char *acl_to = acl_to_text (acl, NULL);
if (acl_from && acl_to && xstrcasecmp (acl_from, acl_to) == 0)
{
retval = 0;
errno = e;
}
if (acl_from)
acl_free (acl_from);
if (acl_to)
acl_free (acl_to);
acl_free (current_acl);
}
}
else if (err == ERROR_FILE_NOT_FOUND
|| err == ERROR_PATH_NOT_FOUND
/* ERROR_INVALID_NAME is what we get if
w32-unicode-filenames is nil and the file cannot be
encoded in the current ANSI codepage. */
|| err == ERROR_INVALID_NAME)
errno = ENOENT;
else
errno = EACCES;
}
else
{
retval = 0;
errno = e;
}
if (st)
{
if (st >= 2)
restore_privilege (&old2);
restore_privilege (&old1);
revert_to_self ();
}
return retval;
}
/* Return true if errno value ERRNUM indicates that ACLs are well
supported on this system. ERRNUM should be an errno value obtained
after an ACL-related system call fails. */
bool
acl_errno_valid (int errnum)
{
switch (errnum)
{
case EBUSY:
case EINVAL:
case ENOTSUP:
return false;
default:
return true;
}
}
\f
/* MS-Windows version of careadlinkat (cf. ../lib/careadlinkat.c). We
have a fixed max size for file names, so we don't need the kind of
alloc/malloc/realloc dance the gnulib version does. We also don't
support FD-relative symlinks. */
char *
careadlinkat (int fd, char const *filename,
char *buffer, size_t buffer_size,
struct allocator const *alloc,
ssize_t (*preadlinkat) (int, char const *, char *, size_t))
{
char linkname[MAX_UTF8_PATH];
ssize_t link_size;
link_size = preadlinkat (fd, filename, linkname, sizeof(linkname));
if (link_size > 0)
{
char *retval = buffer;
linkname[link_size++] = '\0';
if (link_size > buffer_size)
retval = (char *)(alloc ? alloc->allocate : xmalloc) (link_size);
if (retval)
memcpy (retval, linkname, link_size);
return retval;
}
return NULL;
}
int
w32_copy_file (const char *from, const char *to,
int keep_time, int preserve_ownership, int copy_acls)
{
acl_t acl = NULL;
BOOL copy_result;
wchar_t from_w[MAX_PATH], to_w[MAX_PATH];
char from_a[MAX_PATH], to_a[MAX_PATH];
/* We ignore preserve_ownership for now. */
preserve_ownership = preserve_ownership;
if (copy_acls)
{
acl = acl_get_file (from, ACL_TYPE_ACCESS);
if (acl == NULL && acl_errno_valid (errno))
return -2;
}
if (w32_unicode_filenames)
{
filename_to_utf16 (from, from_w);
filename_to_utf16 (to, to_w);
copy_result = CopyFileW (from_w, to_w, FALSE);
}
else
{
filename_to_ansi (from, from_a);
filename_to_ansi (to, to_a);
copy_result = CopyFileA (from_a, to_a, FALSE);
}
if (!copy_result)
{
/* CopyFile doesn't set errno when it fails. By far the most
"popular" reason is that the target is read-only. */
DWORD err = GetLastError ();
switch (err)
{
case ERROR_FILE_NOT_FOUND:
errno = ENOENT;
break;
case ERROR_ACCESS_DENIED:
errno = EACCES;
break;
case ERROR_ENCRYPTION_FAILED:
errno = EIO;
break;
default:
errno = EPERM;
break;
}
if (acl)
acl_free (acl);
return -1;
}
/* CopyFile retains the timestamp by default. However, see
"Community Additions" for CopyFile: it sounds like that is not
entirely true. Testing on Windows XP confirms that modified time
is copied, but creation and last-access times are not.
FIXME? */
else if (!keep_time)
{
struct timespec tnow[2];
DWORD attributes;
tnow[0] = tnow[1] = current_timespec ();
if (w32_unicode_filenames)
{
/* Ensure file is writable while its times are set. */
attributes = GetFileAttributesW (to_w);
SetFileAttributesW (to_w, attributes & ~FILE_ATTRIBUTE_READONLY);
if (utimensat (AT_FDCWD, to, tnow, 0))
{
/* Restore original attributes. */
SetFileAttributesW (to_w, attributes);
if (acl)
acl_free (acl);
return -3;
}
/* Restore original attributes. */
SetFileAttributesW (to_w, attributes);
}
else
{
attributes = GetFileAttributesA (to_a);
SetFileAttributesA (to_a, attributes & ~FILE_ATTRIBUTE_READONLY);
if (utimensat (AT_FDCWD, to, tnow, 0))
{
SetFileAttributesA (to_a, attributes);
if (acl)
acl_free (acl);
return -3;
}
SetFileAttributesA (to_a, attributes);
}
}
if (acl != NULL)
{
bool fail =
acl_set_file (to, ACL_TYPE_ACCESS, acl) != 0;
acl_free (acl);
if (fail && acl_errno_valid (errno))
return -4;
}
return 0;
}
\f
/* Support for browsing other processes and their attributes. See
process.c for the Lisp bindings. */
/* Helper wrapper functions. */
static HANDLE WINAPI
create_toolhelp32_snapshot (DWORD Flags, DWORD Ignored)
{
static CreateToolhelp32Snapshot_Proc s_pfn_Create_Toolhelp32_Snapshot = NULL;
if (g_b_init_create_toolhelp32_snapshot == 0)
{
g_b_init_create_toolhelp32_snapshot = 1;
s_pfn_Create_Toolhelp32_Snapshot = (CreateToolhelp32Snapshot_Proc)
get_proc_addr (GetModuleHandle ("kernel32.dll"),
"CreateToolhelp32Snapshot");
}
if (s_pfn_Create_Toolhelp32_Snapshot == NULL)
{
return INVALID_HANDLE_VALUE;
}
return (s_pfn_Create_Toolhelp32_Snapshot (Flags, Ignored));
}
static BOOL WINAPI
process32_first (HANDLE hSnapshot, LPPROCESSENTRY32 lppe)
{
static Process32First_Proc s_pfn_Process32_First = NULL;
if (g_b_init_process32_first == 0)
{
g_b_init_process32_first = 1;
s_pfn_Process32_First = (Process32First_Proc)
get_proc_addr (GetModuleHandle ("kernel32.dll"),
"Process32First");
}
if (s_pfn_Process32_First == NULL)
{
return FALSE;
}
return (s_pfn_Process32_First (hSnapshot, lppe));
}
static BOOL WINAPI
process32_next (HANDLE hSnapshot, LPPROCESSENTRY32 lppe)
{
static Process32Next_Proc s_pfn_Process32_Next = NULL;
if (g_b_init_process32_next == 0)
{
g_b_init_process32_next = 1;
s_pfn_Process32_Next = (Process32Next_Proc)
get_proc_addr (GetModuleHandle ("kernel32.dll"),
"Process32Next");
}
if (s_pfn_Process32_Next == NULL)
{
return FALSE;
}
return (s_pfn_Process32_Next (hSnapshot, lppe));
}
static BOOL WINAPI
open_thread_token (HANDLE ThreadHandle,
DWORD DesiredAccess,
BOOL OpenAsSelf,
PHANDLE TokenHandle)
{
static OpenThreadToken_Proc s_pfn_Open_Thread_Token = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
SetLastError (ERROR_NOT_SUPPORTED);
return FALSE;
}
if (g_b_init_open_thread_token == 0)
{
g_b_init_open_thread_token = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Open_Thread_Token = (OpenThreadToken_Proc)
get_proc_addr (hm_advapi32, "OpenThreadToken");
}
if (s_pfn_Open_Thread_Token == NULL)
{
SetLastError (ERROR_NOT_SUPPORTED);
return FALSE;
}
return (
s_pfn_Open_Thread_Token (
ThreadHandle,
DesiredAccess,
OpenAsSelf,
TokenHandle)
);
}
static BOOL WINAPI
impersonate_self (SECURITY_IMPERSONATION_LEVEL ImpersonationLevel)
{
static ImpersonateSelf_Proc s_pfn_Impersonate_Self = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
return FALSE;
}
if (g_b_init_impersonate_self == 0)
{
g_b_init_impersonate_self = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Impersonate_Self = (ImpersonateSelf_Proc)
get_proc_addr (hm_advapi32, "ImpersonateSelf");
}
if (s_pfn_Impersonate_Self == NULL)
{
return FALSE;
}
return s_pfn_Impersonate_Self (ImpersonationLevel);
}
static BOOL WINAPI
revert_to_self (void)
{
static RevertToSelf_Proc s_pfn_Revert_To_Self = NULL;
HMODULE hm_advapi32 = NULL;
if (is_windows_9x () == TRUE)
{
return FALSE;
}
if (g_b_init_revert_to_self == 0)
{
g_b_init_revert_to_self = 1;
hm_advapi32 = LoadLibrary ("Advapi32.dll");
s_pfn_Revert_To_Self = (RevertToSelf_Proc)
get_proc_addr (hm_advapi32, "RevertToSelf");
}
if (s_pfn_Revert_To_Self == NULL)
{
return FALSE;
}
return s_pfn_Revert_To_Self ();
}
static BOOL WINAPI
get_process_memory_info (HANDLE h_proc,
PPROCESS_MEMORY_COUNTERS mem_counters,
DWORD bufsize)
{
static GetProcessMemoryInfo_Proc s_pfn_Get_Process_Memory_Info = NULL;
HMODULE hm_psapi = NULL;
if (is_windows_9x () == TRUE)
{
return FALSE;
}
if (g_b_init_get_process_memory_info == 0)
{
g_b_init_get_process_memory_info = 1;
hm_psapi = LoadLibrary ("Psapi.dll");
if (hm_psapi)
s_pfn_Get_Process_Memory_Info = (GetProcessMemoryInfo_Proc)
get_proc_addr (hm_psapi, "GetProcessMemoryInfo");
}
if (s_pfn_Get_Process_Memory_Info == NULL)
{
return FALSE;
}
return s_pfn_Get_Process_Memory_Info (h_proc, mem_counters, bufsize);
}
static BOOL WINAPI
get_process_working_set_size (HANDLE h_proc,
PSIZE_T minrss,
PSIZE_T maxrss)
{
static GetProcessWorkingSetSize_Proc
s_pfn_Get_Process_Working_Set_Size = NULL;
if (is_windows_9x () == TRUE)
{
return FALSE;
}
if (g_b_init_get_process_working_set_size == 0)
{
g_b_init_get_process_working_set_size = 1;
s_pfn_Get_Process_Working_Set_Size = (GetProcessWorkingSetSize_Proc)
get_proc_addr (GetModuleHandle ("kernel32.dll"),
"GetProcessWorkingSetSize");
}
if (s_pfn_Get_Process_Working_Set_Size == NULL)
{
return FALSE;
}
return s_pfn_Get_Process_Working_Set_Size (h_proc, minrss, maxrss);
}
static BOOL WINAPI
global_memory_status (MEMORYSTATUS *buf)
{
static GlobalMemoryStatus_Proc s_pfn_Global_Memory_Status = NULL;
if (is_windows_9x () == TRUE)
{
return FALSE;
}
if (g_b_init_global_memory_status == 0)
{
g_b_init_global_memory_status = 1;
s_pfn_Global_Memory_Status = (GlobalMemoryStatus_Proc)
get_proc_addr (GetModuleHandle ("kernel32.dll"),
"GlobalMemoryStatus");
}
if (s_pfn_Global_Memory_Status == NULL)
{
return FALSE;
}
return s_pfn_Global_Memory_Status (buf);
}
static BOOL WINAPI
global_memory_status_ex (MEMORY_STATUS_EX *buf)
{
static GlobalMemoryStatusEx_Proc s_pfn_Global_Memory_Status_Ex = NULL;
if (is_windows_9x () == TRUE)
{
return FALSE;
}
if (g_b_init_global_memory_status_ex == 0)
{
g_b_init_global_memory_status_ex = 1;
s_pfn_Global_Memory_Status_Ex = (GlobalMemoryStatusEx_Proc)
get_proc_addr (GetModuleHandle ("kernel32.dll"),
"GlobalMemoryStatusEx");
}
if (s_pfn_Global_Memory_Status_Ex == NULL)
{
return FALSE;
}
return s_pfn_Global_Memory_Status_Ex (buf);
}
Lisp_Object
list_system_processes (void)
{
Lisp_Object proclist = Qnil;
HANDLE h_snapshot;
h_snapshot = create_toolhelp32_snapshot (TH32CS_SNAPPROCESS, 0);
if (h_snapshot != INVALID_HANDLE_VALUE)
{
PROCESSENTRY32 proc_entry;
DWORD proc_id;
BOOL res;
proc_entry.dwSize = sizeof (PROCESSENTRY32);
for (res = process32_first (h_snapshot, &proc_entry); res;
res = process32_next (h_snapshot, &proc_entry))
{
proc_id = proc_entry.th32ProcessID;
proclist = Fcons (INT_TO_INTEGER (proc_id), proclist);
}
CloseHandle (h_snapshot);
proclist = Fnreverse (proclist);
}
return proclist;
}
static int
enable_privilege (LPCTSTR priv_name, BOOL enable_p, TOKEN_PRIVILEGES *old_priv)
{
TOKEN_PRIVILEGES priv;
DWORD priv_size = sizeof (priv);
DWORD opriv_size = sizeof (*old_priv);
HANDLE h_token = NULL;
HANDLE h_thread = GetCurrentThread ();
int ret_val = 0;
BOOL res;
res = open_thread_token (h_thread,
TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES,
FALSE, &h_token);
if (!res && GetLastError () == ERROR_NO_TOKEN)
{
if (impersonate_self (SecurityImpersonation))
res = open_thread_token (h_thread,
TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES,
FALSE, &h_token);
}
if (res)
{
priv.PrivilegeCount = 1;
priv.Privileges[0].Attributes = enable_p ? SE_PRIVILEGE_ENABLED : 0;
LookupPrivilegeValue (NULL, priv_name, &priv.Privileges[0].Luid);
if (AdjustTokenPrivileges (h_token, FALSE, &priv, priv_size,
old_priv, &opriv_size)
&& GetLastError () != ERROR_NOT_ALL_ASSIGNED)
ret_val = 1;
}
if (h_token)
CloseHandle (h_token);
return ret_val;
}
static int
restore_privilege (TOKEN_PRIVILEGES *priv)
{
DWORD priv_size = sizeof (*priv);
HANDLE h_token = NULL;
int ret_val = 0;
if (open_thread_token (GetCurrentThread (),
TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES,
FALSE, &h_token))
{
if (AdjustTokenPrivileges (h_token, FALSE, priv, priv_size, NULL, NULL)
&& GetLastError () != ERROR_NOT_ALL_ASSIGNED)
ret_val = 1;
}
if (h_token)
CloseHandle (h_token);
return ret_val;
}
static Lisp_Object
ltime (ULONGLONG time_100ns)
{
ULONGLONG time_sec = time_100ns / 10000000;
int subsec = time_100ns % 10000000;
return list4i (time_sec >> 16, time_sec & 0xffff,
subsec / 10, subsec % 10 * 100000);
}
#define U64_TO_LISP_TIME(time) ltime (time)
static int
process_times (HANDLE h_proc, Lisp_Object *ctime, Lisp_Object *etime,
Lisp_Object *stime, Lisp_Object *utime, Lisp_Object *ttime,
double *pcpu)
{
FILETIME ft_creation, ft_exit, ft_kernel, ft_user, ft_current;
ULONGLONG tem1, tem2, tem3, tem;
if (!h_proc
|| !get_process_times_fn
|| !(*get_process_times_fn) (h_proc, &ft_creation, &ft_exit,
&ft_kernel, &ft_user))
return 0;
GetSystemTimeAsFileTime (&ft_current);
FILETIME_TO_U64 (tem1, ft_kernel);
*stime = U64_TO_LISP_TIME (tem1);
FILETIME_TO_U64 (tem2, ft_user);
*utime = U64_TO_LISP_TIME (tem2);
tem3 = tem1 + tem2;
*ttime = U64_TO_LISP_TIME (tem3);
FILETIME_TO_U64 (tem, ft_creation);
/* Process no 4 (System) returns zero creation time. */
if (tem)
tem -= utc_base;
*ctime = U64_TO_LISP_TIME (tem);
if (tem)
{
FILETIME_TO_U64 (tem3, ft_current);
tem = (tem3 - utc_base) - tem;
}
*etime = U64_TO_LISP_TIME (tem);
if (tem)
{
*pcpu = 100.0 * (tem1 + tem2) / tem;
if (*pcpu > 100)
*pcpu = 100.0;
}
else
*pcpu = 0;
return 1;
}
Lisp_Object
system_process_attributes (Lisp_Object pid)
{
Lisp_Object attrs = Qnil;
Lisp_Object cmd_str, decoded_cmd, tem;
HANDLE h_snapshot, h_proc;
DWORD proc_id;
int found_proc = 0;
char uname[UNLEN+1], gname[GNLEN+1], domain[1025];
DWORD ulength = sizeof (uname), dlength = sizeof (domain), needed;
DWORD glength = sizeof (gname);
HANDLE token = NULL;
SID_NAME_USE user_type;
unsigned char *buf = NULL;
DWORD blen = 0;
TOKEN_USER user_token;
TOKEN_PRIMARY_GROUP group_token;
unsigned euid;
unsigned egid;
PROCESS_MEMORY_COUNTERS mem;
PROCESS_MEMORY_COUNTERS_EX mem_ex;
SIZE_T minrss, maxrss;
MEMORYSTATUS memst;
MEMORY_STATUS_EX memstex;
double totphys = 0.0;
Lisp_Object ctime, stime, utime, etime, ttime;
double pcpu;
BOOL result = FALSE;
CHECK_NUMBER (pid);
proc_id = FLOATP (pid) ? XFLOAT_DATA (pid) : XFIXNUM (pid);
h_snapshot = create_toolhelp32_snapshot (TH32CS_SNAPPROCESS, 0);
if (h_snapshot != INVALID_HANDLE_VALUE)
{
PROCESSENTRY32 pe;
BOOL res;
pe.dwSize = sizeof (PROCESSENTRY32);
for (res = process32_first (h_snapshot, &pe); res;
res = process32_next (h_snapshot, &pe))
{
if (proc_id == pe.th32ProcessID)
{
if (proc_id == 0)
decoded_cmd = build_string ("Idle");
else
{
/* Decode the command name from locale-specific
encoding. */
cmd_str = build_unibyte_string (pe.szExeFile);
decoded_cmd =
code_convert_string_norecord (cmd_str,
Vlocale_coding_system, 0);
}
attrs = Fcons (Fcons (Qcomm, decoded_cmd), attrs);
attrs = Fcons (Fcons (Qppid,
INT_TO_INTEGER (pe.th32ParentProcessID)),
attrs);
attrs = Fcons (Fcons (Qpri, make_fixnum (pe.pcPriClassBase)),
attrs);
attrs = Fcons (Fcons (Qthcount,
INT_TO_INTEGER (pe.cntThreads)),
attrs);
found_proc = 1;
break;
}
}
CloseHandle (h_snapshot);
}
if (!found_proc)
return Qnil;
h_proc = OpenProcess (PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,
FALSE, proc_id);
/* If we were denied a handle to the process, try again after
enabling the SeDebugPrivilege in our process. */
if (!h_proc)
{
TOKEN_PRIVILEGES priv_current;
if (enable_privilege (SE_DEBUG_NAME, TRUE, &priv_current))
{
h_proc = OpenProcess (PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,
FALSE, proc_id);
restore_privilege (&priv_current);
revert_to_self ();
}
}
if (h_proc)
{
result = open_process_token (h_proc, TOKEN_QUERY, &token);
if (result)
{
result = get_token_information (token, TokenUser, NULL, 0, &blen);
if (!result && GetLastError () == ERROR_INSUFFICIENT_BUFFER)
{
buf = xmalloc (blen);
result = get_token_information (token, TokenUser,
(LPVOID)buf, blen, &needed);
if (result)
{
memcpy (&user_token, buf, sizeof (user_token));
if (!w32_cached_id (user_token.User.Sid, &euid, uname))
{
euid = get_rid (user_token.User.Sid);
result = lookup_account_sid (NULL, user_token.User.Sid,
uname, &ulength,
domain, &dlength,
&user_type);
if (result)
w32_add_to_cache (user_token.User.Sid, euid, uname);
else
{
strcpy (uname, "unknown");
result = TRUE;
}
}
ulength = strlen (uname);
}
}
}
if (result)
{
/* Determine a reasonable euid and gid values. */
if (xstrcasecmp ("administrator", uname) == 0)
{
euid = 500; /* well-known Administrator uid */
egid = 513; /* well-known None gid */
}
else
{
/* Get group id and name. */
result = get_token_information (token, TokenPrimaryGroup,
(LPVOID)buf, blen, &needed);
if (!result && GetLastError () == ERROR_INSUFFICIENT_BUFFER)
{
buf = xrealloc (buf, blen = needed);
result = get_token_information (token, TokenPrimaryGroup,
(LPVOID)buf, blen, &needed);
}
if (result)
{
memcpy (&group_token, buf, sizeof (group_token));
if (!w32_cached_id (group_token.PrimaryGroup, &egid, gname))
{
egid = get_rid (group_token.PrimaryGroup);
dlength = sizeof (domain);
result =
lookup_account_sid (NULL, group_token.PrimaryGroup,
gname, &glength, NULL, &dlength,
&user_type);
if (result)
w32_add_to_cache (group_token.PrimaryGroup,
egid, gname);
else
{
strcpy (gname, "None");
result = TRUE;
}
}
glength = strlen (gname);
}
}
}
xfree (buf);
}
if (!result)
{
if (!is_windows_9x ())
{
/* We couldn't open the process token, presumably because of
insufficient access rights. Assume this process is run
by the system. */
strcpy (uname, "SYSTEM");
strcpy (gname, "None");
euid = 18; /* SYSTEM */
egid = 513; /* None */
glength = strlen (gname);
ulength = strlen (uname);
}
/* If we are running under Windows 9X, where security calls are
not supported, we assume all processes are run by the current
user. */
else if (GetUserName (uname, &ulength))
{
if (xstrcasecmp ("administrator", uname) == 0)
euid = 0;
else
euid = 123;
egid = euid;
strcpy (gname, "None");
glength = strlen (gname);
ulength = strlen (uname);
}
else
{
euid = 123;
egid = 123;
strcpy (uname, "administrator");
ulength = strlen (uname);
strcpy (gname, "None");
glength = strlen (gname);
}
if (token)
CloseHandle (token);
}
attrs = Fcons (Fcons (Qeuid, INT_TO_INTEGER (euid)), attrs);
tem = make_unibyte_string (uname, ulength);
attrs = Fcons (Fcons (Quser,
code_convert_string_norecord (tem, Vlocale_coding_system, 0)),
attrs);
attrs = Fcons (Fcons (Qegid, INT_TO_INTEGER (egid)), attrs);
tem = make_unibyte_string (gname, glength);
attrs = Fcons (Fcons (Qgroup,
code_convert_string_norecord (tem, Vlocale_coding_system, 0)),
attrs);
memstex.dwLength = sizeof (memstex);
if (global_memory_status_ex (&memstex))
#if __GNUC__ || (defined (_MSC_VER) && _MSC_VER >= 1300)
totphys = memstex.ullTotalPhys / 1024.0;
#else
/* Visual Studio 6 cannot convert an unsigned __int64 type to
double, so we need to do this for it... */
{
DWORD tot_hi = memstex.ullTotalPhys >> 32;
DWORD tot_md = (memstex.ullTotalPhys & 0x00000000ffffffff) >> 10;
DWORD tot_lo = memstex.ullTotalPhys % 1024;
totphys = tot_hi * 4194304.0 + tot_md + tot_lo / 1024.0;
}
#endif /* __GNUC__ || _MSC_VER >= 1300 */
else if (global_memory_status (&memst))
totphys = memst.dwTotalPhys / 1024.0;
if (h_proc
&& get_process_memory_info (h_proc, (PROCESS_MEMORY_COUNTERS *)&mem_ex,
sizeof (mem_ex)))
{
SIZE_T rss = mem_ex.WorkingSetSize / 1024;
attrs = Fcons (Fcons (Qmajflt,
INT_TO_INTEGER (mem_ex.PageFaultCount)),
attrs);
attrs = Fcons (Fcons (Qvsize,
INT_TO_INTEGER (mem_ex.PrivateUsage / 1024)),
attrs);
attrs = Fcons (Fcons (Qrss, INT_TO_INTEGER (rss)), attrs);
if (totphys)
attrs = Fcons (Fcons (Qpmem, make_float (100. * rss / totphys)), attrs);
}
else if (h_proc
&& get_process_memory_info (h_proc, &mem, sizeof (mem)))
{
SIZE_T rss = mem_ex.WorkingSetSize / 1024;
attrs = Fcons (Fcons (Qmajflt,
INT_TO_INTEGER (mem.PageFaultCount)),
attrs);
attrs = Fcons (Fcons (Qrss, INT_TO_INTEGER (rss)), attrs);
if (totphys)
attrs = Fcons (Fcons (Qpmem, make_float (100. * rss / totphys)), attrs);
}
else if (h_proc
&& get_process_working_set_size (h_proc, &minrss, &maxrss))
{
DWORD rss = maxrss / 1024;
attrs = Fcons (Fcons (Qrss, INT_TO_INTEGER (maxrss / 1024)), attrs);
if (totphys)
attrs = Fcons (Fcons (Qpmem, make_float (100. * rss / totphys)), attrs);
}
if (process_times (h_proc, &ctime, &etime, &stime, &utime, &ttime, &pcpu))
{
attrs = Fcons (Fcons (Qutime, utime), attrs);
attrs = Fcons (Fcons (Qstime, stime), attrs);
attrs = Fcons (Fcons (Qtime, ttime), attrs);
attrs = Fcons (Fcons (Qstart, ctime), attrs);
attrs = Fcons (Fcons (Qetime, etime), attrs);
attrs = Fcons (Fcons (Qpcpu, make_float (pcpu)), attrs);
}
/* FIXME: Retrieve command line by walking the PEB of the process. */
if (h_proc)
CloseHandle (h_proc);
return attrs;
}
int
w32_memory_info (unsigned long long *totalram, unsigned long long *freeram,
unsigned long long *totalswap, unsigned long long *freeswap)
{
MEMORYSTATUS memst;
MEMORY_STATUS_EX memstex;
/* Use GlobalMemoryStatusEx if available, as it can report more than
2GB of memory. */
if (global_memory_status_ex (&memstex))
{
*totalram = memstex.ullTotalPhys;
*freeram = memstex.ullAvailPhys;
*totalswap = memstex.ullTotalPageFile;
*freeswap = memstex.ullAvailPageFile;
return 0;
}
else if (global_memory_status (&memst))
{
*totalram = memst.dwTotalPhys;
*freeram = memst.dwAvailPhys;
*totalswap = memst.dwTotalPageFile;
*freeswap = memst.dwAvailPageFile;
return 0;
}
else
return -1;
}
\f
/* Wrappers for winsock functions to map between our file descriptors
and winsock's handles; also set h_errno for convenience.
To allow Emacs to run on systems which don't have winsock support
installed, we dynamically link to winsock on startup if present, and
otherwise provide the minimum necessary functionality
(eg. gethostname). */
/* function pointers for relevant socket functions */
int (PASCAL *pfn_WSAStartup) (WORD wVersionRequired, LPWSADATA lpWSAData);
void (PASCAL *pfn_WSASetLastError) (int iError);
int (PASCAL *pfn_WSAGetLastError) (void);
int (PASCAL *pfn_WSAEventSelect) (SOCKET s, HANDLE hEventObject, long lNetworkEvents);
int (PASCAL *pfn_WSAEnumNetworkEvents) (SOCKET s, HANDLE hEventObject,
WSANETWORKEVENTS *NetworkEvents);
HANDLE (PASCAL *pfn_WSACreateEvent) (void);
int (PASCAL *pfn_WSACloseEvent) (HANDLE hEvent);
int (PASCAL *pfn_socket) (int af, int type, int protocol);
int (PASCAL *pfn_bind) (SOCKET s, const struct sockaddr *addr, int namelen);
int (PASCAL *pfn_connect) (SOCKET s, const struct sockaddr *addr, int namelen);
int (PASCAL *pfn_ioctlsocket) (SOCKET s, long cmd, u_long *argp);
int (PASCAL *pfn_recv) (SOCKET s, char * buf, int len, int flags);
int (PASCAL *pfn_send) (SOCKET s, const char * buf, int len, int flags);
int (PASCAL *pfn_closesocket) (SOCKET s);
int (PASCAL *pfn_shutdown) (SOCKET s, int how);
int (PASCAL *pfn_WSACleanup) (void);
u_short (PASCAL *pfn_htons) (u_short hostshort);
u_short (PASCAL *pfn_ntohs) (u_short netshort);
u_long (PASCAL *pfn_htonl) (u_long hostlong);
u_long (PASCAL *pfn_ntohl) (u_long netlong);
unsigned long (PASCAL *pfn_inet_addr) (const char * cp);
int (PASCAL *pfn_gethostname) (char * name, int namelen);
struct hostent * (PASCAL *pfn_gethostbyname) (const char * name);
struct servent * (PASCAL *pfn_getservbyname) (const char * name, const char * proto);
int (PASCAL *pfn_getpeername) (SOCKET s, struct sockaddr *addr, int * namelen);
int (PASCAL *pfn_setsockopt) (SOCKET s, int level, int optname,
const char * optval, int optlen);
int (PASCAL *pfn_listen) (SOCKET s, int backlog);
int (PASCAL *pfn_getsockname) (SOCKET s, struct sockaddr * name,
int * namelen);
SOCKET (PASCAL *pfn_accept) (SOCKET s, struct sockaddr * addr, int * addrlen);
int (PASCAL *pfn_recvfrom) (SOCKET s, char * buf, int len, int flags,
struct sockaddr * from, int * fromlen);
int (PASCAL *pfn_sendto) (SOCKET s, const char * buf, int len, int flags,
const struct sockaddr * to, int tolen);
int (PASCAL *pfn_getaddrinfo) (const char *, const char *,
const struct addrinfo *, struct addrinfo **);
void (PASCAL *pfn_freeaddrinfo) (struct addrinfo *);
/* SetHandleInformation is only needed to make sockets non-inheritable. */
BOOL (WINAPI *pfn_SetHandleInformation) (HANDLE object, DWORD mask, DWORD flags);
#ifndef HANDLE_FLAG_INHERIT
#define HANDLE_FLAG_INHERIT 1
#endif
HANDLE winsock_lib;
static int winsock_inuse;
BOOL term_winsock (void);
BOOL
term_winsock (void)
{
if (winsock_lib != NULL && winsock_inuse == 0)
{
release_listen_threads ();
/* Not sure what would cause WSAENETDOWN, or even if it can happen
after WSAStartup returns successfully, but it seems reasonable
to allow unloading winsock anyway in that case. */
if (pfn_WSACleanup () == 0 ||
pfn_WSAGetLastError () == WSAENETDOWN)
{
if (FreeLibrary (winsock_lib))
winsock_lib = NULL;
return TRUE;
}
}
return FALSE;
}
BOOL
init_winsock (int load_now)
{
WSADATA winsockData;
if (winsock_lib != NULL)
return TRUE;
pfn_SetHandleInformation
= (void *) get_proc_addr (GetModuleHandle ("kernel32.dll"),
"SetHandleInformation");
winsock_lib = LoadLibrary ("Ws2_32.dll");
if (winsock_lib != NULL)
{
/* dynamically link to socket functions */
#define LOAD_PROC(fn) \
if ((pfn_##fn = (void *) get_proc_addr (winsock_lib, #fn)) == NULL) \
goto fail;
LOAD_PROC (WSAStartup);
LOAD_PROC (WSASetLastError);
LOAD_PROC (WSAGetLastError);
LOAD_PROC (WSAEventSelect);
LOAD_PROC (WSAEnumNetworkEvents);
LOAD_PROC (WSACreateEvent);
LOAD_PROC (WSACloseEvent);
LOAD_PROC (socket);
LOAD_PROC (bind);
LOAD_PROC (connect);
LOAD_PROC (ioctlsocket);
LOAD_PROC (recv);
LOAD_PROC (send);
LOAD_PROC (closesocket);
LOAD_PROC (shutdown);
LOAD_PROC (htons);
LOAD_PROC (ntohs);
LOAD_PROC (htonl);
LOAD_PROC (ntohl);
LOAD_PROC (inet_addr);
LOAD_PROC (gethostname);
LOAD_PROC (gethostbyname);
LOAD_PROC (getservbyname);
LOAD_PROC (getpeername);
LOAD_PROC (WSACleanup);
LOAD_PROC (setsockopt);
LOAD_PROC (listen);
LOAD_PROC (getsockname);
LOAD_PROC (accept);
LOAD_PROC (recvfrom);
LOAD_PROC (sendto);
#undef LOAD_PROC
/* Try loading functions not available before XP. */
pfn_getaddrinfo = (void *) get_proc_addr (winsock_lib, "getaddrinfo");
pfn_freeaddrinfo = (void *) get_proc_addr (winsock_lib, "freeaddrinfo");
/* Paranoia: these two functions should go together, so if one
is absent, we cannot use the other. */
if (pfn_getaddrinfo == NULL)
pfn_freeaddrinfo = NULL;
else if (pfn_freeaddrinfo == NULL)
pfn_getaddrinfo = NULL;
/* specify version 1.1 of winsock */
if (pfn_WSAStartup (0x101, &winsockData) == 0)
{
if (winsockData.wVersion != 0x101)
goto fail;
if (!load_now)
{
/* Report that winsock exists and is usable, but leave
socket functions disabled. I am assuming that calling
WSAStartup does not require any network interaction,
and in particular does not cause or require a dial-up
connection to be established. */
pfn_WSACleanup ();
FreeLibrary (winsock_lib);
winsock_lib = NULL;
}
winsock_inuse = 0;
return TRUE;
}
fail:
FreeLibrary (winsock_lib);
winsock_lib = NULL;
}
return FALSE;
}
int h_errno = 0;
/* Function to map winsock error codes to errno codes for those errno
code defined in errno.h (errno values not defined by errno.h are
already in nt/inc/sys/socket.h). */
static void
set_errno (void)
{
int wsa_err;
h_errno = 0;
if (winsock_lib == NULL)
wsa_err = EINVAL;
else
wsa_err = pfn_WSAGetLastError ();
switch (wsa_err)
{
case WSAEACCES: errno = EACCES; break;
case WSAEBADF: errno = EBADF; break;
case WSAEFAULT: errno = EFAULT; break;
case WSAEINTR: errno = EINTR; break;
case WSAEINVAL: errno = EINVAL; break;
case WSAEMFILE: errno = EMFILE; break;
case WSAENAMETOOLONG: errno = ENAMETOOLONG; break;
case WSAENOTEMPTY: errno = ENOTEMPTY; break;
case WSAEWOULDBLOCK: errno = EWOULDBLOCK; break;
case WSAENOTCONN: errno = ENOTCONN; break;
default: errno = wsa_err; break;
}
}
static void
check_errno (void)
{
h_errno = 0;
if (winsock_lib != NULL)
pfn_WSASetLastError (0);
}
/* Extend strerror to handle the winsock-specific error codes. */
struct {
int errnum;
const char * msg;
} _wsa_errlist[] = {
{WSAEINTR , "Interrupted function call"},
{WSAEBADF , "Bad file descriptor"},
{WSAEACCES , "Permission denied"},
{WSAEFAULT , "Bad address"},
{WSAEINVAL , "Invalid argument"},
{WSAEMFILE , "Too many open files"},
{WSAEWOULDBLOCK , "Resource temporarily unavailable"},
{WSAEINPROGRESS , "Operation now in progress"},
{WSAEALREADY , "Operation already in progress"},
{WSAENOTSOCK , "Socket operation on non-socket"},
{WSAEDESTADDRREQ , "Destination address required"},
{WSAEMSGSIZE , "Message too long"},
{WSAEPROTOTYPE , "Protocol wrong type for socket"},
{WSAENOPROTOOPT , "Bad protocol option"},
{WSAEPROTONOSUPPORT , "Protocol not supported"},
{WSAESOCKTNOSUPPORT , "Socket type not supported"},
{WSAEOPNOTSUPP , "Operation not supported"},
{WSAEPFNOSUPPORT , "Protocol family not supported"},
{WSAEAFNOSUPPORT , "Address family not supported by protocol family"},
{WSAEADDRINUSE , "Address already in use"},
{WSAEADDRNOTAVAIL , "Cannot assign requested address"},
{WSAENETDOWN , "Network is down"},
{WSAENETUNREACH , "Network is unreachable"},
{WSAENETRESET , "Network dropped connection on reset"},
{WSAECONNABORTED , "Software caused connection abort"},
{WSAECONNRESET , "Connection reset by peer"},
{WSAENOBUFS , "No buffer space available"},
{WSAEISCONN , "Socket is already connected"},
{WSAENOTCONN , "Socket is not connected"},
{WSAESHUTDOWN , "Cannot send after socket shutdown"},
{WSAETOOMANYREFS , "Too many references"}, /* not sure */
{WSAETIMEDOUT , "Connection timed out"},
{WSAECONNREFUSED , "Connection refused"},
{WSAELOOP , "Network loop"}, /* not sure */
{WSAENAMETOOLONG , "Name is too long"},
{WSAEHOSTDOWN , "Host is down"},
{WSAEHOSTUNREACH , "No route to host"},
{WSAENOTEMPTY , "Buffer not empty"}, /* not sure */
{WSAEPROCLIM , "Too many processes"},
{WSAEUSERS , "Too many users"}, /* not sure */
{WSAEDQUOT , "Double quote in host name"}, /* really not sure */
{WSAESTALE , "Data is stale"}, /* not sure */
{WSAEREMOTE , "Remote error"}, /* not sure */
{WSASYSNOTREADY , "Network subsystem is unavailable"},
{WSAVERNOTSUPPORTED , "WINSOCK.DLL version out of range"},
{WSANOTINITIALISED , "Winsock not initialized successfully"},
{WSAEDISCON , "Graceful shutdown in progress"},
#ifdef WSAENOMORE
{WSAENOMORE , "No more operations allowed"}, /* not sure */
{WSAECANCELLED , "Operation cancelled"}, /* not sure */
{WSAEINVALIDPROCTABLE , "Invalid procedure table from service provider"},
{WSAEINVALIDPROVIDER , "Invalid service provider version number"},
{WSAEPROVIDERFAILEDINIT , "Unable to initialize a service provider"},
{WSASYSCALLFAILURE , "System call failure"},
{WSASERVICE_NOT_FOUND , "Service not found"}, /* not sure */
{WSATYPE_NOT_FOUND , "Class type not found"},
{WSA_E_NO_MORE , "No more resources available"}, /* really not sure */
{WSA_E_CANCELLED , "Operation already cancelled"}, /* really not sure */
{WSAEREFUSED , "Operation refused"}, /* not sure */
#endif
{WSAHOST_NOT_FOUND , "Host not found"},
{WSATRY_AGAIN , "Authoritative host not found during name lookup"},
{WSANO_RECOVERY , "Non-recoverable error during name lookup"},
{WSANO_DATA , "Valid name, no data record of requested type"},
{-1, NULL}
};
char *
sys_strerror (int error_no)
{
int i;
static char unknown_msg[40];
if (error_no >= 0 && error_no < sys_nerr)
return sys_errlist[error_no];
for (i = 0; _wsa_errlist[i].errnum >= 0; i++)
if (_wsa_errlist[i].errnum == error_no)
return (char *)_wsa_errlist[i].msg;
sprintf (unknown_msg, "Unidentified error: %d", error_no);
return unknown_msg;
}
/* [andrewi 3-May-96] I've had conflicting results using both methods,
but I believe the method of keeping the socket handle separate (and
insuring it is not inheritable) is the correct one. */
#define SOCK_HANDLE(fd) ((SOCKET) fd_info[fd].hnd)
static int socket_to_fd (SOCKET s);
int
sys_socket (int af, int type, int protocol)
{
SOCKET s;
if (winsock_lib == NULL)
{
errno = ENETDOWN;
return -1;
}
check_errno ();
/* call the real socket function */
s = pfn_socket (af, type, protocol);
if (s != INVALID_SOCKET)
return socket_to_fd (s);
set_errno ();
return -1;
}
/* Convert a SOCKET to a file descriptor. */
static int
socket_to_fd (SOCKET s)
{
int fd;
child_process * cp;
/* Although under NT 3.5 _open_osfhandle will accept a socket
handle, if opened with SO_OPENTYPE == SO_SYNCHRONOUS_NONALERT,
that does not work under NT 3.1. However, we can get the same
effect by using a backdoor function to replace an existing
descriptor handle with the one we want. */
/* allocate a file descriptor (with appropriate flags) */
fd = _open ("NUL:", _O_RDWR);
if (fd >= 0)
{
/* Make a non-inheritable copy of the socket handle. Note
that it is possible that sockets aren't actually kernel
handles, which appears to be the case on Windows 9x when
the MS Proxy winsock client is installed. */
{
/* Apparently there is a bug in NT 3.51 with some service
packs, which prevents using DuplicateHandle to make a
socket handle non-inheritable (causes WSACleanup to
hang). The work-around is to use SetHandleInformation
instead if it is available and implemented. */
if (pfn_SetHandleInformation)
{
pfn_SetHandleInformation ((HANDLE) s, HANDLE_FLAG_INHERIT, 0);
}
else
{
HANDLE parent = GetCurrentProcess ();
HANDLE new_s = INVALID_HANDLE_VALUE;
if (DuplicateHandle (parent,
(HANDLE) s,
parent,
&new_s,
0,
FALSE,
DUPLICATE_SAME_ACCESS))
{
/* It is possible that DuplicateHandle succeeds even
though the socket wasn't really a kernel handle,
because a real handle has the same value. So
test whether the new handle really is a socket. */
unsigned long nonblocking = 0;
if (pfn_ioctlsocket ((SOCKET) new_s, FIONBIO, &nonblocking) == 0)
{
pfn_closesocket (s);
s = (SOCKET) new_s;
}
else
{
CloseHandle (new_s);
}
}
}
}
eassert (fd < MAXDESC);
fd_info[fd].hnd = (HANDLE) s;
/* set our own internal flags */
fd_info[fd].flags = FILE_SOCKET | FILE_BINARY | FILE_READ | FILE_WRITE;
cp = new_child ();
if (cp)
{
cp->fd = fd;
cp->status = STATUS_READ_ACKNOWLEDGED;
/* attach child_process to fd_info */
if (fd_info[ fd ].cp != NULL)
{
DebPrint (("sys_socket: fd_info[%d] apparently in use!\n", fd));
emacs_abort ();
}
fd_info[ fd ].cp = cp;
/* success! */
winsock_inuse++; /* count open sockets */
return fd;
}
/* clean up */
_close (fd);
}
else
pfn_closesocket (s);
errno = EMFILE;
return -1;
}
int
sys_bind (int s, const struct sockaddr * addr, int namelen)
{
if (winsock_lib == NULL)
{
errno = ENOTSOCK;
return SOCKET_ERROR;
}
check_errno ();
if (fd_info[s].flags & FILE_SOCKET)
{
int rc = pfn_bind (SOCK_HANDLE (s), addr, namelen);
if (rc == SOCKET_ERROR)
set_errno ();
return rc;
}
errno = ENOTSOCK;
return SOCKET_ERROR;
}
int
sys_connect (int s, const struct sockaddr * name, int namelen)
{
if (winsock_lib == NULL)
{
errno = ENOTSOCK;
return SOCKET_ERROR;
}
check_errno ();
if (fd_info[s].flags & FILE_SOCKET)
{
int rc = pfn_connect (SOCK_HANDLE (s), name, namelen);
if (rc == SOCKET_ERROR)
{
set_errno ();
/* If this is a non-blocking 'connect', set the bit in flags
that will tell reader_thread to wait for connection
before trying to read. */
if (errno == EWOULDBLOCK && (fd_info[s].flags & FILE_NDELAY) != 0)
{
errno = EINPROGRESS; /* that's what process.c expects */
fd_info[s].flags |= FILE_CONNECT;
}
}
return rc;
}
errno = ENOTSOCK;
return SOCKET_ERROR;
}
u_short
sys_htons (u_short hostshort)
{
return (winsock_lib != NULL) ?
pfn_htons (hostshort) : hostshort;
}
u_short
sys_ntohs (u_short netshort)
{
return (winsock_lib != NULL) ?
pfn_ntohs (netshort) : netshort;
}
u_long
sys_htonl (u_long hostlong)
{
return (winsock_lib != NULL) ?
pfn_htonl (hostlong) : hostlong;
}
u_long
sys_ntohl (u_long netlong)
{
return (winsock_lib != NULL) ?
pfn_ntohl (netlong) : netlong;
}
unsigned long
sys_inet_addr (const char * cp)
{
return (winsock_lib != NULL) ?
pfn_inet_addr (cp) : INADDR_NONE;
}
int
sys_gethostname (char * name, int namelen)
{
if (winsock_lib != NULL)
{
int retval;
check_errno ();
retval = pfn_gethostname (name, namelen);
if (retval == SOCKET_ERROR)
set_errno ();
return retval;
}
if (namelen > MAX_COMPUTERNAME_LENGTH)
return !GetComputerName (name, (DWORD *)&namelen);
errno = EFAULT;
return SOCKET_ERROR;
}
struct hostent *
sys_gethostbyname (const char * name)
{
struct hostent * host;
int h_err = h_errno;
if (winsock_lib == NULL)
{
h_errno = NO_RECOVERY;
errno = ENETDOWN;
return NULL;
}
check_errno ();
host = pfn_gethostbyname (name);
if (!host)
{
set_errno ();
h_errno = errno;
}
else
h_errno = h_err;
return host;
}
struct servent *
sys_getservbyname (const char * name, const char * proto)
{
struct servent * serv;
if (winsock_lib == NULL)
{
errno = ENETDOWN;
return NULL;
}
check_errno ();
serv = pfn_getservbyname (name, proto);
if (!serv)
set_errno ();
return serv;
}
int
sys_getpeername (int s, struct sockaddr *addr, int * namelen)
{
if (winsock_lib == NULL)
{
errno = ENETDOWN;
return SOCKET_ERROR;
}
check_errno ();
if (fd_info[s].flags & FILE_SOCKET)
{
int rc = pfn_getpeername (SOCK_HANDLE (s), addr, namelen);
if (rc == SOCKET_ERROR)
set_errno ();
return rc;
}
errno = ENOTSOCK;
return SOCKET_ERROR;
}
int
sys_getaddrinfo (const char *node, const char *service,
const struct addrinfo *hints, struct addrinfo **res)
{
int rc;
if (winsock_lib == NULL)
{
errno = ENETDOWN;
return SOCKET_ERROR;
}
check_errno ();
if (pfn_getaddrinfo)
rc = pfn_getaddrinfo (node, service, hints, res);
else
{
int port = 0;
struct hostent *host_info;
struct gai_storage {
struct addrinfo addrinfo;
struct sockaddr_in sockaddr_in;
} *gai_storage;
/* We don't (yet) support any flags, as Emacs doesn't need that. */
if (hints && hints->ai_flags != 0)
return WSAEINVAL;
/* NODE cannot be NULL, since process.c has fallbacks for that. */
if (!node)
return WSAHOST_NOT_FOUND;
if (service)
{
const char *protocol =
(hints && hints->ai_socktype == SOCK_DGRAM) ? "udp" : "tcp";
struct servent *srv = sys_getservbyname (service, protocol);
if (srv)
port = srv->s_port;
else if (*service >= '0' && *service <= '9')
{
char *endp;
port = strtoul (service, &endp, 10);
if (*endp || port > 65536)
return WSAHOST_NOT_FOUND;
port = sys_htons ((unsigned short) port);
}
else
return WSAHOST_NOT_FOUND;
}
gai_storage = xzalloc (sizeof *gai_storage);
gai_storage->sockaddr_in.sin_port = port;
host_info = sys_gethostbyname (node);
if (host_info)
{
memcpy (&gai_storage->sockaddr_in.sin_addr,
host_info->h_addr, host_info->h_length);
gai_storage->sockaddr_in.sin_family = host_info->h_addrtype;
}
else
{
/* Attempt to interpret host as numeric inet address. */
unsigned long numeric_addr = sys_inet_addr (node);
if (numeric_addr == -1)
{
free (gai_storage);
return WSAHOST_NOT_FOUND;
}
memcpy (&gai_storage->sockaddr_in.sin_addr, &numeric_addr,
sizeof (gai_storage->sockaddr_in.sin_addr));
gai_storage->sockaddr_in.sin_family = (hints) ? hints->ai_family : 0;
}
gai_storage->addrinfo.ai_addr =
(struct sockaddr *)&gai_storage->sockaddr_in;
gai_storage->addrinfo.ai_addrlen = sizeof (gai_storage->sockaddr_in);
gai_storage->addrinfo.ai_protocol = (hints) ? hints->ai_protocol : 0;
gai_storage->addrinfo.ai_socktype = (hints) ? hints->ai_socktype : 0;
gai_storage->addrinfo.ai_family = gai_storage->sockaddr_in.sin_family;
gai_storage->addrinfo.ai_next = NULL;
*res = &gai_storage->addrinfo;
rc = 0;
}
return rc;
}
void
sys_freeaddrinfo (struct addrinfo *ai)
{
if (winsock_lib == NULL)
{
errno = ENETDOWN;
return;
}
check_errno ();
if (pfn_freeaddrinfo)
pfn_freeaddrinfo (ai);
else
{
eassert (ai->ai_next == NULL);
xfree (ai);
}
}
int
sys_shutdown (int s, int how)
{
if (winsock_lib == NULL)
{
errno = ENETDOWN;
return SOCKET_ERROR;
}
check_errno ();
if (fd_info[s].flags & FILE_SOCKET)
{
int rc = pfn_shutdown (SOCK_HANDLE (s), how);
if (rc == SOCKET_ERROR)
set_errno ();
return rc;
}
errno = ENOTSOCK;
return SOCKET_ERROR;
}
int
sys_setsockopt (int s, int level, int optname, const void * optval, int optlen)
{
if (winsock_lib == NULL)
{
errno = ENETDOWN;
return SOCKET_ERROR;
}
check_errno ();
if (fd_info[s].flags & FILE_SOCKET)
{
int rc = pfn_setsockopt (SOCK_HANDLE (s), level, optname,
(const char *)optval, optlen);
if (rc == SOCKET_ERROR)
set_errno ();
return rc;
}
errno = ENOTSOCK;
return SOCKET_ERROR;
}
int
sys_listen (int s, int backlog)
{
if (winsock_lib == NULL)
{
errno = ENETDOWN;
return SOCKET_ERROR;
}
check_errno ();
if (fd_info[s].flags & FILE_SOCKET)
{
int rc = pfn_listen (SOCK_HANDLE (s), backlog);
if (rc == SOCKET_ERROR)
set_errno ();
else
fd_info[s].flags |= FILE_LISTEN;
return rc;
}
errno = ENOTSOCK;
return SOCKET_ERROR;
}
int
sys_getsockname (int s, struct sockaddr * name, int * namelen)
{
if (winsock_lib == NULL)
{
errno = ENETDOWN;
return SOCKET_ERROR;
}
check_errno ();
if (fd_info[s].flags & FILE_SOCKET)
{
int rc = pfn_getsockname (SOCK_HANDLE (s), name, namelen);
if (rc == SOCKET_ERROR)
set_errno ();
return rc;
}
errno = ENOTSOCK;
return SOCKET_ERROR;
}
int
sys_accept (int s, struct sockaddr * addr, int * addrlen)
{
if (winsock_lib == NULL)
{
errno = ENETDOWN;
return -1;
}
check_errno ();
if (fd_info[s].flags & FILE_LISTEN)
{
SOCKET t = pfn_accept (SOCK_HANDLE (s), addr, addrlen);
int fd = -1;
if (t == INVALID_SOCKET)
set_errno ();
else
fd = socket_to_fd (t);
if (fd >= 0)
{
fd_info[s].cp->status = STATUS_READ_ACKNOWLEDGED;
ResetEvent (fd_info[s].cp->char_avail);
}
return fd;
}
errno = ENOTSOCK;
return -1;
}
int
sys_recvfrom (int s, char * buf, int len, int flags,
struct sockaddr * from, int * fromlen)
{
if (winsock_lib == NULL)
{
errno = ENETDOWN;
return SOCKET_ERROR;
}
check_errno ();
if (fd_info[s].flags & FILE_SOCKET)
{
int rc = pfn_recvfrom (SOCK_HANDLE (s), buf, len, flags, from, fromlen);
if (rc == SOCKET_ERROR)
set_errno ();
return rc;
}
errno = ENOTSOCK;
return SOCKET_ERROR;
}
int
sys_sendto (int s, const char * buf, int len, int flags,
const struct sockaddr * to, int tolen)
{
if (winsock_lib == NULL)
{
errno = ENETDOWN;
return SOCKET_ERROR;
}
check_errno ();
if (fd_info[s].flags & FILE_SOCKET)
{
int rc = pfn_sendto (SOCK_HANDLE (s), buf, len, flags, to, tolen);
if (rc == SOCKET_ERROR)
set_errno ();
return rc;
}
errno = ENOTSOCK;
return SOCKET_ERROR;
}
/* Windows does not have an fcntl function. Provide an implementation
good enough for Emacs. */
int
fcntl (int s, int cmd, int options)
{
/* In the w32 Emacs port, fcntl (fd, F_DUPFD_CLOEXEC, fd1) is always
invoked in a context where fd1 is closed and all descriptors less
than fd1 are open, so sys_dup is an adequate implementation. */
if (cmd == F_DUPFD_CLOEXEC)
return sys_dup (s);
check_errno ();
if (fd_info[s].flags & FILE_SOCKET)
{
if (winsock_lib == NULL)
{
errno = ENETDOWN;
return -1;
}
if (cmd == F_SETFL && options == O_NONBLOCK)
{
unsigned long nblock = 1;
int rc = pfn_ioctlsocket (SOCK_HANDLE (s), FIONBIO, &nblock);
if (rc == SOCKET_ERROR)
set_errno ();
/* Keep track of the fact that we set this to non-blocking. */
fd_info[s].flags |= FILE_NDELAY;
return rc;
}
else
{
errno = EINVAL;
return SOCKET_ERROR;
}
}
else if ((fd_info[s].flags & (FILE_PIPE | FILE_WRITE))
== (FILE_PIPE | FILE_WRITE))
{
/* Force our writes to pipes be non-blocking. */
if (cmd == F_SETFL && options == O_NONBLOCK)
{
HANDLE h = (HANDLE)_get_osfhandle (s);
DWORD pipe_mode = PIPE_NOWAIT;
if (!SetNamedPipeHandleState (h, &pipe_mode, NULL, NULL))
{
DebPrint (("SetNamedPipeHandleState: %lu\n", GetLastError ()));
return SOCKET_ERROR;
}
fd_info[s].flags |= FILE_NDELAY;
return 0;
}
else
{
errno = EINVAL;
return SOCKET_ERROR;
}
}
errno = ENOTSOCK;
return SOCKET_ERROR;
}
/* Shadow main io functions: we need to handle pipes and sockets more
intelligently. */
int
sys_close (int fd)
{
int rc;
if (fd < 0)
{
errno = EBADF;
return -1;
}
if (fd < MAXDESC && fd_info[fd].cp)
{
child_process * cp = fd_info[fd].cp;
fd_info[fd].cp = NULL;
if (CHILD_ACTIVE (cp))
{
/* if last descriptor to active child_process then cleanup */
int i;
for (i = 0; i < MAXDESC; i++)
{
if (i == fd)
continue;
if (fd_info[i].cp == cp)
break;
}
if (i == MAXDESC)
{
if (fd_info[fd].flags & FILE_SOCKET)
{
if (winsock_lib == NULL) emacs_abort ();
pfn_shutdown (SOCK_HANDLE (fd), 2);
rc = pfn_closesocket (SOCK_HANDLE (fd));
winsock_inuse--; /* count open sockets */
}
/* If the process handle is NULL, it's either a socket
or serial connection, or a subprocess that was
already reaped by reap_subprocess, but whose
resources were not yet freed, because its output was
not fully read yet by the time it was reaped. (This
usually happens with async subprocesses whose output
is being read by Emacs.) Otherwise, this process was
not reaped yet, so we set its FD to a negative value
to make sure sys_select will eventually get to
calling the SIGCHLD handler for it, which will then
invoke waitpid and reap_subprocess. */
if (cp->procinfo.hProcess == NULL)
delete_child (cp);
else
cp->fd = -1;
}
}
}
if (fd >= 0 && fd < MAXDESC)
fd_info[fd].flags = 0;
/* Note that sockets do not need special treatment here (at least on
NT and Windows 95 using the standard tcp/ip stacks) - it appears that
closesocket is equivalent to CloseHandle, which is to be expected
because socket handles are fully fledged kernel handles. */
rc = _close (fd);
return rc;
}
int
sys_dup (int fd)
{
int new_fd;
new_fd = _dup (fd);
if (new_fd >= 0 && new_fd < MAXDESC)
{
/* duplicate our internal info as well */
fd_info[new_fd] = fd_info[fd];
}
return new_fd;
}
int
sys_dup2 (int src, int dst)
{
int rc;
if (dst < 0 || dst >= MAXDESC)
{
errno = EBADF;
return -1;
}
/* MS _dup2 seems to have weird side effect when invoked with 2
identical arguments: an attempt to fclose the corresponding stdio
stream after that hangs (we do close standard streams in
init_ntproc). Attempt to avoid that by not calling _dup2 that
way: if SRC is valid, we know that dup2 should be a no-op, so do
nothing and return DST. */
if (src == dst)
{
if ((HANDLE)_get_osfhandle (src) == INVALID_HANDLE_VALUE)
{
errno = EBADF;
return -1;
}
return dst;
}
/* Make sure we close the destination first if it's a pipe or socket. */
if (fd_info[dst].flags != 0)
sys_close (dst);
rc = _dup2 (src, dst);
if (rc == 0)
{
/* Duplicate our internal info as well. */
fd_info[dst] = fd_info[src];
}
return rc == 0 ? dst : rc;
}
int
pipe2 (int * phandles, int pipe2_flags)
{
int rc;
unsigned flags;
unsigned pipe_size = 0;
eassert (pipe2_flags == (O_BINARY | O_CLOEXEC));
/* Allow Lisp to override the default buffer size of the pipe. */
if (w32_pipe_buffer_size > 0 && w32_pipe_buffer_size < UINT_MAX)
pipe_size = w32_pipe_buffer_size;
/* make pipe handles non-inheritable; when we spawn a child, we
replace the relevant handle with an inheritable one. Also put
pipes into binary mode; we will do text mode translation ourselves
if required. */
rc = _pipe (phandles, pipe_size, _O_NOINHERIT | _O_BINARY);
if (rc == 0)
{
/* Protect against overflow, since Windows can open more handles than
our fd_info array has room for. */
if (phandles[0] >= MAXDESC || phandles[1] >= MAXDESC)
{
_close (phandles[0]);
_close (phandles[1]);
/* Since we close the handles, set them to -1, so as to
avoid an assertion violation if the caller then tries to
close the handle again (emacs_close will abort otherwise
if errno is EBADF). */
phandles[0] = phandles[1] = -1;
errno = EMFILE;
rc = -1;
}
else
{
flags = FILE_PIPE | FILE_READ | FILE_BINARY;
fd_info[phandles[0]].flags = flags;
flags = FILE_PIPE | FILE_WRITE | FILE_BINARY;
fd_info[phandles[1]].flags = flags;
}
}
return rc;
}
/* Function to do blocking read of one byte, needed to implement
select. It is only allowed on communication ports, sockets, or
pipes. */
int
_sys_read_ahead (int fd)
{
child_process * cp;
int rc = 0;
if (fd < 0 || fd >= MAXDESC)
return STATUS_READ_ERROR;
cp = fd_info[fd].cp;
if (cp == NULL || cp->fd != fd || cp->status != STATUS_READ_READY)
return STATUS_READ_ERROR;
if ((fd_info[fd].flags & (FILE_PIPE | FILE_SERIAL | FILE_SOCKET)) == 0
|| (fd_info[fd].flags & FILE_READ) == 0)
{
DebPrint (("_sys_read_ahead: internal error: fd %d is not a pipe, serial port, or socket!\n", fd));
emacs_abort ();
}
if ((fd_info[fd].flags & FILE_CONNECT) != 0)
DebPrint (("_sys_read_ahead: read requested from fd %d, which waits for async connect!\n", fd));
cp->status = STATUS_READ_IN_PROGRESS;
if (fd_info[fd].flags & FILE_PIPE)
{
rc = _read (fd, &cp->chr, sizeof (char));
/* Optionally give subprocess time to buffer some more output
for us before reporting that input is available; we may need
this because Windows 9X connects DOS programs to pipes by
making the pipe appear to be the normal console stdout -- as
a result most DOS programs will write to stdout without
buffering, i.e., one character at a time. Even some W32
programs do this -- "dir" in a command shell on NT is very
slow if we don't do this. */
if (rc > 0)
{
int wait = w32_pipe_read_delay;
if (wait > 0)
Sleep (wait);
else if (wait < 0)
while (++wait <= 0)
/* Yield remainder of our time slice, effectively giving a
temporary priority boost to the child process. */
Sleep (0);
}
}
else if (fd_info[fd].flags & FILE_SERIAL)
{
HANDLE hnd = fd_info[fd].hnd;
OVERLAPPED *ovl = &fd_info[fd].cp->ovl_read;
COMMTIMEOUTS ct;
/* Configure timeouts for blocking read. */
if (!GetCommTimeouts (hnd, &ct))
{
cp->status = STATUS_READ_ERROR;
return STATUS_READ_ERROR;
}
ct.ReadIntervalTimeout = 0;
ct.ReadTotalTimeoutMultiplier = 0;
ct.ReadTotalTimeoutConstant = 0;
if (!SetCommTimeouts (hnd, &ct))
{
cp->status = STATUS_READ_ERROR;
return STATUS_READ_ERROR;
}
if (!ReadFile (hnd, &cp->chr, sizeof (char), (DWORD*) &rc, ovl))
{
if (GetLastError () != ERROR_IO_PENDING)
{
cp->status = STATUS_READ_ERROR;
return STATUS_READ_ERROR;
}
if (!GetOverlappedResult (hnd, ovl, (DWORD*) &rc, TRUE))
{
cp->status = STATUS_READ_ERROR;
return STATUS_READ_ERROR;
}
}
}
else if (fd_info[fd].flags & FILE_SOCKET)
{
unsigned long nblock = 0;
/* We always want this to block, so temporarily disable NDELAY. */
if (fd_info[fd].flags & FILE_NDELAY)
pfn_ioctlsocket (SOCK_HANDLE (fd), FIONBIO, &nblock);
rc = pfn_recv (SOCK_HANDLE (fd), &cp->chr, sizeof (char), 0);
if (fd_info[fd].flags & FILE_NDELAY)
{
nblock = 1;
pfn_ioctlsocket (SOCK_HANDLE (fd), FIONBIO, &nblock);
}
}
if (rc == sizeof (char))
cp->status = STATUS_READ_SUCCEEDED;
else
cp->status = STATUS_READ_FAILED;
return cp->status;
}
int
_sys_wait_accept (int fd)
{
HANDLE hEv;
child_process * cp;
int rc;
if (fd < 0 || fd >= MAXDESC)
return STATUS_READ_ERROR;
cp = fd_info[fd].cp;
if (cp == NULL || cp->fd != fd || cp->status != STATUS_READ_READY)
return STATUS_READ_ERROR;
cp->status = STATUS_READ_FAILED;
hEv = pfn_WSACreateEvent ();
rc = pfn_WSAEventSelect (SOCK_HANDLE (fd), hEv, FD_ACCEPT);
if (rc != SOCKET_ERROR)
{
do {
rc = WaitForSingleObject (hEv, 500);
Sleep (5);
} while (rc == WAIT_TIMEOUT
&& cp->status != STATUS_READ_ERROR
&& cp->char_avail);
pfn_WSAEventSelect (SOCK_HANDLE (fd), NULL, 0);
if (rc == WAIT_OBJECT_0)
cp->status = STATUS_READ_SUCCEEDED;
}
pfn_WSACloseEvent (hEv);
return cp->status;
}
int
_sys_wait_connect (int fd)
{
HANDLE hEv;
child_process * cp;
int rc;
if (fd < 0 || fd >= MAXDESC)
return STATUS_READ_ERROR;
cp = fd_info[fd].cp;
if (cp == NULL || cp->fd != fd || cp->status != STATUS_READ_READY)
return STATUS_READ_ERROR;
cp->status = STATUS_READ_FAILED;
hEv = pfn_WSACreateEvent ();
rc = pfn_WSAEventSelect (SOCK_HANDLE (fd), hEv, FD_CONNECT);
if (rc != SOCKET_ERROR)
{
do {
rc = WaitForSingleObject (hEv, 500);
Sleep (5);
} while (rc == WAIT_TIMEOUT
&& cp->status != STATUS_READ_ERROR
&& cp->char_avail);
if (rc == WAIT_OBJECT_0)
{
/* We've got an event, but it could be a successful
connection, or it could be a failure. Find out
which one is it. */
WSANETWORKEVENTS events;
pfn_WSAEnumNetworkEvents (SOCK_HANDLE (fd), hEv, &events);
if ((events.lNetworkEvents & FD_CONNECT) != 0
&& events.iErrorCode[FD_CONNECT_BIT])
{
cp->status = STATUS_CONNECT_FAILED;
cp->errcode = events.iErrorCode[FD_CONNECT_BIT];
}
else
{
cp->status = STATUS_READ_SUCCEEDED;
cp->errcode = 0;
}
}
pfn_WSAEventSelect (SOCK_HANDLE (fd), NULL, 0);
}
else
pfn_WSACloseEvent (hEv);
return cp->status;
}
int
sys_read (int fd, char * buffer, unsigned int count)
{
int nchars;
int to_read;
DWORD waiting;
char * orig_buffer = buffer;
if (fd < 0)
{
errno = EBADF;
return -1;
}
if (fd < MAXDESC && fd_info[fd].flags & (FILE_PIPE | FILE_SOCKET | FILE_SERIAL))
{
child_process *cp = fd_info[fd].cp;
if ((fd_info[fd].flags & FILE_READ) == 0)
{
errno = EBADF;
return -1;
}
nchars = 0;
/* re-read CR carried over from last read */
if (fd_info[fd].flags & FILE_LAST_CR)
{
if (fd_info[fd].flags & FILE_BINARY) emacs_abort ();
*buffer++ = 0x0d;
count--;
nchars++;
fd_info[fd].flags &= ~FILE_LAST_CR;
}
/* presence of a child_process structure means we are operating in
non-blocking mode - otherwise we just call _read directly.
Note that the child_process structure might be missing because
reap_subprocess has been called; in this case the pipe is
already broken, so calling _read on it is okay. */
if (cp)
{
int current_status = cp->status;
switch (current_status)
{
case STATUS_READ_FAILED:
case STATUS_READ_ERROR:
/* report normal EOF if nothing in buffer */
if (nchars <= 0)
fd_info[fd].flags |= FILE_AT_EOF;
return nchars;
case STATUS_READ_READY:
case STATUS_READ_IN_PROGRESS:
#if 0
/* This happens all the time during GnuTLS handshake
with the remote, evidently because GnuTLS waits for
the read to complete by retrying the read operation
upon EAGAIN. So I'm disabling the DebPrint to avoid
wasting cycles on something that is not a real
problem. Enable if you need to debug something that
bumps into this. */
DebPrint (("sys_read called when read is in progress %d\n",
current_status));
#endif
errno = EWOULDBLOCK;
return -1;
case STATUS_READ_SUCCEEDED:
/* consume read-ahead char */
*buffer++ = cp->chr;
count--;
nchars++;
cp->status = STATUS_READ_ACKNOWLEDGED;
ResetEvent (cp->char_avail);
case STATUS_READ_ACKNOWLEDGED:
case STATUS_CONNECT_FAILED:
break;
default:
DebPrint (("sys_read: bad status %d\n", current_status));
errno = EBADF;
return -1;
}
if (fd_info[fd].flags & FILE_PIPE)
{
PeekNamedPipe ((HANDLE) _get_osfhandle (fd), NULL, 0, NULL, &waiting, NULL);
to_read = min (waiting, (DWORD) count);
if (to_read > 0)
nchars += _read (fd, buffer, to_read);
}
else if (fd_info[fd].flags & FILE_SERIAL)
{
HANDLE hnd = fd_info[fd].hnd;
OVERLAPPED *ovl = &fd_info[fd].cp->ovl_read;
int rc = 0;
COMMTIMEOUTS ct;
if (count > 0)
{
/* Configure timeouts for non-blocking read. */
if (!GetCommTimeouts (hnd, &ct))
{
errno = EIO;
return -1;
}
ct.ReadIntervalTimeout = MAXDWORD;
ct.ReadTotalTimeoutMultiplier = 0;
ct.ReadTotalTimeoutConstant = 0;
if (!SetCommTimeouts (hnd, &ct))
{
errno = EIO;
return -1;
}
if (!ResetEvent (ovl->hEvent))
{
errno = EIO;
return -1;
}
if (!ReadFile (hnd, buffer, count, (DWORD*) &rc, ovl))
{
if (GetLastError () != ERROR_IO_PENDING)
{
errno = EIO;
return -1;
}
if (!GetOverlappedResult (hnd, ovl, (DWORD*) &rc, TRUE))
{
errno = EIO;
return -1;
}
}
nchars += rc;
}
}
else /* FILE_SOCKET */
{
if (winsock_lib == NULL) emacs_abort ();
/* When a non-blocking 'connect' call fails,
wait_reading_process_output detects this by calling
'getpeername', and then attempts to obtain the connection
error code by trying to read 1 byte from the socket. If
we try to serve that read by calling 'recv' below, the
error we get is a generic WSAENOTCONN, not the actual
connection error. So instead, we use the actual error
code stashed by '_sys_wait_connect' in cp->errcode.
Alternatively, we could have used 'getsockopt', like on
GNU/Linux, but: (a) I have no idea whether the winsock
version could hang, as it does "on some systems" (see the
comment in process.c); and (b) 'getsockopt' on Windows is
documented to clear the socket error for the entire
process, which I'm not sure is TRT; FIXME. */
if (current_status == STATUS_CONNECT_FAILED
&& (fd_info[fd].flags & FILE_CONNECT) != 0
&& cp->errcode != 0)
{
pfn_WSASetLastError (cp->errcode);
set_errno ();
return -1;
}
/* Do the equivalent of a non-blocking read. */
pfn_ioctlsocket (SOCK_HANDLE (fd), FIONREAD, &waiting);
if (waiting == 0 && nchars == 0)
{
errno = EWOULDBLOCK;
return -1;
}
if (waiting)
{
/* always use binary mode for sockets */
int res = pfn_recv (SOCK_HANDLE (fd), buffer, count, 0);
if (res == SOCKET_ERROR)
{
set_errno ();
DebPrint (("sys_read.recv failed with error %d on socket %ld\n",
errno, SOCK_HANDLE (fd)));
return -1;
}
nchars += res;
}
}
}
else
{
int nread = _read (fd, buffer, count);
if (nread >= 0)
nchars += nread;
else if (nchars == 0)
nchars = nread;
}
if (nchars <= 0)
fd_info[fd].flags |= FILE_AT_EOF;
/* Perform text mode translation if required. */
else if ((fd_info[fd].flags & FILE_BINARY) == 0)
{
nchars = crlf_to_lf (nchars, orig_buffer);
/* If buffer contains only CR, return that. To be absolutely
sure we should attempt to read the next char, but in
practice a CR to be followed by LF would not appear by
itself in the buffer. */
if (nchars > 1 && orig_buffer[nchars - 1] == 0x0d)
{
fd_info[fd].flags |= FILE_LAST_CR;
nchars--;
}
}
}
else
nchars = _read (fd, buffer, count);
return nchars;
}
/* From w32xfns.c */
extern HANDLE interrupt_handle;
int
sys_write (int fd, const void * buffer, unsigned int count)
{
int nchars;
USE_SAFE_ALLOCA;
if (fd < 0)
{
errno = EBADF;
return -1;
}
if (fd < MAXDESC && fd_info[fd].flags & (FILE_PIPE | FILE_SOCKET | FILE_SERIAL))
{
if ((fd_info[fd].flags & FILE_WRITE) == 0)
{
errno = EBADF;
return -1;
}
/* Perform text mode translation if required. */
if ((fd_info[fd].flags & FILE_BINARY) == 0)
{
char * tmpbuf;
const unsigned char * src = buffer;
unsigned char * dst;
int nbytes = count;
SAFE_NALLOCA (tmpbuf, 2, count);
dst = (unsigned char *)tmpbuf;
while (1)
{
unsigned char *next;
/* Copy next line or remaining bytes. */
next = _memccpy (dst, src, '\n', nbytes);
if (next)
{
/* Copied one line ending with '\n'. */
int copied = next - dst;
nbytes -= copied;
src += copied;
/* Insert '\r' before '\n'. */
next[-1] = '\r';
next[0] = '\n';
dst = next + 1;
count++;
}
else
/* Copied remaining partial line -> now finished. */
break;
}
buffer = tmpbuf;
}
}
if (fd < MAXDESC && fd_info[fd].flags & FILE_SERIAL)
{
HANDLE hnd = (HANDLE) _get_osfhandle (fd);
OVERLAPPED *ovl = &fd_info[fd].cp->ovl_write;
HANDLE wait_hnd[2] = { interrupt_handle, ovl->hEvent };
DWORD active = 0;
/* This is async (a.k.a. "overlapped") I/O, so the return value
of FALSE from WriteFile means either an error or the output
will be completed asynchronously (ERROR_IO_PENDING). */
if (!WriteFile (hnd, buffer, count, (DWORD*) &nchars, ovl))
{
if (GetLastError () != ERROR_IO_PENDING)
{
errno = EIO;
nchars = -1;
}
else
{
/* Wait for the write to complete, and watch C-g while
at that. */
if (detect_input_pending ())
active = MsgWaitForMultipleObjects (2, wait_hnd, FALSE,
INFINITE, QS_ALLINPUT);
else
active = WaitForMultipleObjects (2, wait_hnd, FALSE, INFINITE);
switch (active)
{
case WAIT_OBJECT_0:
/* User pressed C-g, cancel write, then leave.
Don't bother cleaning up as we may only get stuck
in buggy drivers. */
PurgeComm (hnd, PURGE_TXABORT | PURGE_TXCLEAR);
CancelIo (hnd);
errno = EIO; /* Why not EINTR? */
nchars = -1;
break;
case WAIT_OBJECT_0 + 1:
if (!GetOverlappedResult (hnd, ovl, (DWORD*) &nchars, TRUE))
{
errno = EIO;
nchars = -1;
}
break;
}
}
}
}
else if (fd < MAXDESC && fd_info[fd].flags & FILE_SOCKET)
{
unsigned long nblock = 0;
if (winsock_lib == NULL) emacs_abort ();
child_process *cp = fd_info[fd].cp;
/* If this is a non-blocking socket whose connection is in
progress or terminated with an error already, return the
proper error code to the caller. */
if (cp != NULL && (fd_info[fd].flags & FILE_CONNECT) != 0)
{
/* In case connection is in progress, ENOTCONN that would
result from calling pfn_send is not what callers expect. */
if (cp->status != STATUS_CONNECT_FAILED)
{
errno = EWOULDBLOCK;
return -1;
}
/* In case connection failed, use the actual error code
stashed by '_sys_wait_connect' in cp->errcode. */
else if (cp->errcode != 0)
{
pfn_WSASetLastError (cp->errcode);
set_errno ();
return -1;
}
}
/* TODO: implement select() properly so non-blocking I/O works. */
/* For now, make sure the write blocks. */
if (fd_info[fd].flags & FILE_NDELAY)
pfn_ioctlsocket (SOCK_HANDLE (fd), FIONBIO, &nblock);
nchars = pfn_send (SOCK_HANDLE (fd), buffer, count, 0);
if (nchars == SOCKET_ERROR)
{
set_errno ();
DebPrint (("sys_write.send failed with error %d on socket %ld\n",
pfn_WSAGetLastError (), SOCK_HANDLE (fd)));
}
/* Set the socket back to non-blocking if it was before,
for other operations that support it. */
if (fd_info[fd].flags & FILE_NDELAY)
{
nblock = 1;
pfn_ioctlsocket (SOCK_HANDLE (fd), FIONBIO, &nblock);
}
}
else
{
/* Some networked filesystems don't like too large writes, so
break them into smaller chunks. See the Comments section of
the MSDN documentation of WriteFile for details behind the
choice of the value of CHUNK below. See also the thread
http://thread.gmane.org/gmane.comp.version-control.git/145294
in the git mailing list. */
const unsigned char *p = buffer;
const bool is_pipe = (fd < MAXDESC
&& ((fd_info[fd].flags & (FILE_PIPE | FILE_NDELAY))
== (FILE_PIPE | FILE_NDELAY)));
/* Some programs, notably Node.js's node.exe, seem to never
completely empty the pipe, so writing more than the size of
the pipe's buffer always returns ENOSPC, and we loop forever
between send_process and here. As a workaround, write no
more than the pipe's buffer can hold. */
DWORD pipe_buffer_size;
if (is_pipe)
{
if (!GetNamedPipeInfo ((HANDLE)_get_osfhandle (fd),
NULL, &pipe_buffer_size, NULL, NULL))
{
DebPrint (("GetNamedPipeInfo: error %u\n", GetLastError ()));
pipe_buffer_size = 4096;
}
}
const unsigned chunk = is_pipe ? pipe_buffer_size : 30 * 1024 * 1024;
nchars = 0;
errno = 0;
while (count > 0)
{
unsigned this_chunk = count < chunk ? count : chunk;
int n = _write (fd, p, this_chunk);
if (n > 0)
nchars += n;
if (n < 0)
{
/* When there's no buffer space in a pipe that is in the
non-blocking mode, _write returns ENOSPC. We return
EAGAIN instead, which should trigger the logic in
send_process that enters waiting loop and calls
wait_reading_process_output to allow process input to
be accepted during the wait. Those calls to
wait_reading_process_output allow sys_select to
notice when process input becomes available, thus
avoiding deadlock whereby each side of the pipe is
blocked on write, waiting for the other party to read
its end of the pipe. */
if (errno == ENOSPC && is_pipe)
errno = EAGAIN;
if (nchars == 0)
nchars = -1;
break;
}
else if (n < this_chunk)
break;
count -= n;
p += n;
}
}
SAFE_FREE ();
return nchars;
}
\f
/* Emulation of SIOCGIFCONF and getifaddrs, see process.c. */
/* Return information about network interface IFNAME, or about all
interfaces (if IFNAME is nil). */
static Lisp_Object
network_interface_get_info (Lisp_Object ifname)
{
ULONG ainfo_len = sizeof (IP_ADAPTER_INFO);
IP_ADAPTER_INFO *adapter, *ainfo = xmalloc (ainfo_len);
DWORD retval = get_adapters_info (ainfo, &ainfo_len);
Lisp_Object res = Qnil;
if (retval == ERROR_BUFFER_OVERFLOW)
{
ainfo = xrealloc (ainfo, ainfo_len);
retval = get_adapters_info (ainfo, &ainfo_len);
}
if (retval == ERROR_SUCCESS)
{
int eth_count = 0, tr_count = 0, fddi_count = 0, ppp_count = 0;
int sl_count = 0, wlan_count = 0, lo_count = 0, ifx_count = 0;
int if_num;
struct sockaddr_in sa;
/* For the below, we need some winsock functions, so make sure
the winsock DLL is loaded. If we cannot successfully load
it, they will have no use of the information we provide,
anyway, so punt. */
if (!winsock_lib && !init_winsock (1))
goto done;
for (adapter = ainfo; adapter; adapter = adapter->Next)
{
char namebuf[MAX_ADAPTER_NAME_LENGTH + 4];
u_long ip_addr;
/* Present Unix-compatible interface names, instead of the
Windows names, which are really GUIDs not readable by
humans. */
static const char *ifmt[] = {
"eth%d", "tr%d", "fddi%d", "ppp%d", "sl%d", "wlan%d",
"lo", "ifx%d"
};
enum {
NONE = -1,
ETHERNET = 0,
TOKENRING = 1,
FDDI = 2,
PPP = 3,
SLIP = 4,
WLAN = 5,
LOOPBACK = 6,
OTHER_IF = 7
} ifmt_idx;
switch (adapter->Type)
{
case MIB_IF_TYPE_ETHERNET:
/* Windows before Vista reports wireless adapters as
Ethernet. Work around by looking at the Description
string. */
if (strstr (adapter->Description, "Wireless "))
{
ifmt_idx = WLAN;
if_num = wlan_count++;
}
else
{
ifmt_idx = ETHERNET;
if_num = eth_count++;
}
break;
case MIB_IF_TYPE_TOKENRING:
ifmt_idx = TOKENRING;
if_num = tr_count++;
break;
case MIB_IF_TYPE_FDDI:
ifmt_idx = FDDI;
if_num = fddi_count++;
break;
case MIB_IF_TYPE_PPP:
ifmt_idx = PPP;
if_num = ppp_count++;
break;
case MIB_IF_TYPE_SLIP:
ifmt_idx = SLIP;
if_num = sl_count++;
break;
case IF_TYPE_IEEE80211:
ifmt_idx = WLAN;
if_num = wlan_count++;
break;
case MIB_IF_TYPE_LOOPBACK:
if (lo_count < 0)
{
ifmt_idx = LOOPBACK;
if_num = lo_count++;
}
else
ifmt_idx = NONE;
break;
default:
ifmt_idx = OTHER_IF;
if_num = ifx_count++;
break;
}
if (ifmt_idx == NONE)
continue;
sprintf (namebuf, ifmt[ifmt_idx], if_num);
sa.sin_family = AF_INET;
ip_addr = sys_inet_addr (adapter->IpAddressList.IpAddress.String);
if (ip_addr == INADDR_NONE)
{
/* Bogus address, skip this interface. */
continue;
}
sa.sin_addr.s_addr = ip_addr;
sa.sin_port = 0;
if (NILP (ifname))
res = Fcons (Fcons (build_string (namebuf),
conv_sockaddr_to_lisp ((struct sockaddr*) &sa,
sizeof (struct sockaddr))),
res);
else if (strcmp (namebuf, SSDATA (ifname)) == 0)
{
Lisp_Object hwaddr = Fmake_vector (make_fixnum (6), Qnil);
register struct Lisp_Vector *p = XVECTOR (hwaddr);
Lisp_Object flags = Qnil;
int n;
u_long net_mask;
/* Flags. We guess most of them by type, since the
Windows flags are different and hard to get by. */
flags = Fcons (intern ("up"), flags);
if (ifmt_idx == ETHERNET || ifmt_idx == WLAN)
{
flags = Fcons (intern ("broadcast"), flags);
flags = Fcons (intern ("multicast"), flags);
}
flags = Fcons (intern ("running"), flags);
if (ifmt_idx == PPP)
{
flags = Fcons (intern ("pointopoint"), flags);
flags = Fcons (intern ("noarp"), flags);
}
if (adapter->HaveWins)
flags = Fcons (intern ("WINS"), flags);
if (adapter->DhcpEnabled)
flags = Fcons (intern ("dynamic"), flags);
res = Fcons (flags, res);
/* Hardware address and its family. */
for (n = 0; n < adapter->AddressLength; n++)
p->contents[n] = make_fixnum ((int) adapter->Address[n]);
/* Windows does not support AF_LINK or AF_PACKET family
of addresses. Use an arbitrary family number that is
identical to what GNU/Linux returns. */
res = Fcons (Fcons (make_fixnum (1), hwaddr), res);
/* Network mask. */
sa.sin_family = AF_INET;
net_mask = sys_inet_addr (adapter->IpAddressList.IpMask.String);
if (net_mask != INADDR_NONE)
{
sa.sin_addr.s_addr = net_mask;
sa.sin_port = 0;
res = Fcons (conv_sockaddr_to_lisp ((struct sockaddr *) &sa,
sizeof (struct sockaddr)),
res);
}
else
res = Fcons (Qnil, res);
sa.sin_family = AF_INET;
if (ip_addr != INADDR_NONE)
{
/* Broadcast address is only reported by
GetAdaptersAddresses, which is of limited
availability. Generate it on our own. */
u_long bcast_addr = (ip_addr & net_mask) | ~net_mask;
sa.sin_addr.s_addr = bcast_addr;
sa.sin_port = 0;
res = Fcons (conv_sockaddr_to_lisp ((struct sockaddr *) &sa,
sizeof (struct sockaddr)),
res);
/* IP address. */
sa.sin_addr.s_addr = ip_addr;
sa.sin_port = 0;
res = Fcons (conv_sockaddr_to_lisp ((struct sockaddr *) &sa,
sizeof (struct sockaddr)),
res);
}
else
res = Fcons (Qnil, Fcons (Qnil, res));
}
}
/* GetAdaptersInfo is documented to not report loopback
interfaces, so we generate one out of thin air. */
if (!lo_count)
{
sa.sin_family = AF_INET;
sa.sin_port = 0;
if (NILP (ifname))
{
sa.sin_addr.s_addr = sys_inet_addr ("127.0.0.1");
res = Fcons (Fcons (build_string ("lo"),
conv_sockaddr_to_lisp ((struct sockaddr*) &sa,
sizeof (struct sockaddr))),
res);
}
else if (strcmp (SSDATA (ifname), "lo") == 0)
{
res = Fcons (Fcons (intern ("running"),
Fcons (intern ("loopback"),
Fcons (intern ("up"), Qnil))), Qnil);
/* 772 is what 3 different GNU/Linux systems report for
the loopback interface. */
res = Fcons (Fcons (make_fixnum (772),
Fmake_vector (make_fixnum (6),
make_fixnum (0))),
res);
sa.sin_addr.s_addr = sys_inet_addr ("255.0.0.0");
res = Fcons (conv_sockaddr_to_lisp ((struct sockaddr *) &sa,
sizeof (struct sockaddr)),
res);
sa.sin_addr.s_addr = sys_inet_addr ("0.0.0.0");
res = Fcons (conv_sockaddr_to_lisp ((struct sockaddr *) &sa,
sizeof (struct sockaddr)),
res);
sa.sin_addr.s_addr = sys_inet_addr ("127.0.0.1");
res = Fcons (conv_sockaddr_to_lisp ((struct sockaddr *) &sa,
sizeof (struct sockaddr)),
res);
}
}
}
done:
xfree (ainfo);
return res;
}
static bool
address_prefix_match (int family, struct sockaddr *address,
struct sockaddr *prefix_address, ULONG prefix_len)
{
UINT8 *address_data;
UINT8 *prefix_address_data;
int i;
if (family == AF_INET6)
{
address_data = (UINT8 *) &(((struct sockaddr_in6 *) address)->sin6_addr);
prefix_address_data =
(UINT8 *) &(((struct sockaddr_in6 *) prefix_address)->sin6_addr);
}
else
{
address_data = (UINT8 *) &(((struct sockaddr_in *) address)->sin_addr);
prefix_address_data =
(UINT8 *) &(((struct sockaddr_in *) prefix_address)->sin_addr);
}
for (i = 0; i < prefix_len >> 3; i++)
{
if (address_data[i] != prefix_address_data[i])
return false;
}
if (prefix_len % 8)
return (prefix_address_data[i] ==
(address_data[i] & (0xff << (8 - prefix_len % 8))));
return true;
}
Lisp_Object
network_interface_list (bool full, unsigned short match)
{
ULONG ainfo_len = sizeof (IP_ADAPTER_ADDRESSES);
ULONG family = match;
IP_ADAPTER_ADDRESSES *adapter, *ainfo = xmalloc (ainfo_len);
DWORD retval = get_adapters_addresses (family, ainfo, &ainfo_len);
Lisp_Object res = Qnil;
if (retval == ERROR_BUFFER_OVERFLOW)
{
ainfo = xrealloc (ainfo, ainfo_len);
retval = get_adapters_addresses (family, ainfo, &ainfo_len);
}
if (retval != ERROR_SUCCESS)
{
xfree (ainfo);
return res;
}
/* For the below, we need some winsock functions, so make sure
the winsock DLL is loaded. If we cannot successfully load
it, they will have no use of the information we provide,
anyway, so punt. */
if (!winsock_lib && !init_winsock (1))
return res;
int eth_count = 0, tr_count = 0, fddi_count = 0, ppp_count = 0;
int sl_count = 0, wlan_count = 0, lo_count = 0, ifx_count = 0;
int tnl_count = 0;
int if_num;
char namebuf[MAX_ADAPTER_NAME_LENGTH + 4];
static const char *ifmt[] = {
"eth%d", "tr%d", "fddi%d", "ppp%d", "sl%d", "wlan%d",
"lo%d", "ifx%d", "tunnel%d"
};
enum {
NONE = -1,
ETHERNET = 0,
TOKENRING = 1,
FDDI = 2,
PPP = 3,
SLIP = 4,
WLAN = 5,
LOOPBACK = 6,
OTHER_IF = 7,
TUNNEL = 8
} ifmt_idx;
for (adapter = ainfo; adapter; adapter = adapter->Next)
{
/* Present Unix-compatible interface names, instead of the
Windows names, which are really GUIDs not readable by
humans. */
switch (adapter->IfType)
{
case IF_TYPE_ETHERNET_CSMACD:
/* Windows before Vista reports wireless adapters as
Ethernet. Work around by looking at the Description
string. */
{
char description[MAX_UTF8_PATH];
if (filename_from_utf16 (adapter->Description, description) == 0
&& strstr (description, "Wireless "))
{
ifmt_idx = WLAN;
if_num = wlan_count++;
}
else
{
ifmt_idx = ETHERNET;
if_num = eth_count++;
}
}
break;
case IF_TYPE_ISO88025_TOKENRING:
ifmt_idx = TOKENRING;
if_num = tr_count++;
break;
case IF_TYPE_FDDI:
ifmt_idx = FDDI;
if_num = fddi_count++;
break;
case IF_TYPE_PPP:
ifmt_idx = PPP;
if_num = ppp_count++;
break;
case IF_TYPE_SLIP:
ifmt_idx = SLIP;
if_num = sl_count++;
break;
case IF_TYPE_IEEE80211:
ifmt_idx = WLAN;
if_num = wlan_count++;
break;
case IF_TYPE_SOFTWARE_LOOPBACK:
ifmt_idx = LOOPBACK;
if_num = lo_count++;
break;
case IF_TYPE_TUNNEL:
ifmt_idx = TUNNEL;
if_num = tnl_count++;
break;
default:
ifmt_idx = OTHER_IF;
if_num = ifx_count++;
break;
}
sprintf (namebuf, ifmt[ifmt_idx], if_num);
IP_ADAPTER_UNICAST_ADDRESS *address;
for (address = adapter->FirstUnicastAddress; address; address = address->Next)
{
int len;
int addr_len;
uint32_t *maskp;
uint32_t *addrp;
Lisp_Object elt = Qnil;
struct sockaddr *ifa_addr = address->Address.lpSockaddr;
if (ifa_addr == NULL)
continue;
if (match && ifa_addr->sa_family != match)
continue;
struct sockaddr_in ipv4;
#ifdef AF_INET6
struct sockaddr_in6 ipv6;
#endif
struct sockaddr *sin;
if (ifa_addr->sa_family == AF_INET)
{
ipv4.sin_family = AF_INET;
ipv4.sin_port = 0;
DECLARE_POINTER_ALIAS (sin_in, struct sockaddr_in, ifa_addr);
addrp = (uint32_t *)&sin_in->sin_addr;
maskp = (uint32_t *)&ipv4.sin_addr;
sin = (struct sockaddr *)&ipv4;
len = sizeof (struct sockaddr_in);
addr_len = 1;
}
#ifdef AF_INET6
else if (ifa_addr->sa_family == AF_INET6)
{
ipv6.sin6_family = AF_INET6;
ipv6.sin6_port = 0;
DECLARE_POINTER_ALIAS (sin_in6, struct sockaddr_in6, ifa_addr);
addrp = (uint32_t *)&sin_in6->sin6_addr;
maskp = (uint32_t *)&ipv6.sin6_addr;
sin = (struct sockaddr *)&ipv6;
len = sizeof (struct sockaddr_in6);
addr_len = 4;
}
#endif
else
continue;
Lisp_Object addr = conv_sockaddr_to_lisp (ifa_addr, len);
if (full)
{
/* GetAdaptersAddress returns information in network
byte order, so convert from host to network order
when generating the netmask. */
int i;
ULONG numbits;
if (w32_major_version >= 6) /* Vista or later */
{
#if _WIN32_WINNT >= 0x0600
numbits = address->OnLinkPrefixLength;
#else
/* Kludge alert! OnLinkPrefixLength is only defined
when compiling for Vista and later. */
numbits = *(UINT8 *) (&address->LeaseLifetime + 1);
#endif
}
else /* Windows XP */
{
IP_ADAPTER_PREFIX *prefix = adapter->FirstPrefix;
numbits = 0;
for ( ; prefix; prefix = prefix->Next)
{
/* We want the longest matching prefix. */
if ((prefix->Address.lpSockaddr->sa_family
== ifa_addr->sa_family)
&& (prefix->PrefixLength > numbits)
&& address_prefix_match (ifa_addr->sa_family,
ifa_addr,
prefix->Address.lpSockaddr,
prefix->PrefixLength))
numbits = prefix->PrefixLength;
}
if (!numbits)
numbits = (ifa_addr->sa_family == AF_INET6) ? 128 : 32;
}
for (i = 0; i < addr_len; i++)
{
if (numbits >= 32)
{
maskp[i] = -1U;
numbits -= 32;
}
else if (numbits)
{
maskp[i] = sys_htonl (-1U << (32 - numbits));
numbits = 0;
}
else
{
maskp[i] = 0;
}
}
elt = Fcons (conv_sockaddr_to_lisp (sin, len), elt);
uint32_t mask;
for (i = 0; i < addr_len; i++)
{
mask = maskp[i];
maskp[i] = (addrp[i] & mask) | ~mask;
}
elt = Fcons (conv_sockaddr_to_lisp (sin, len), elt);
elt = Fcons (addr, elt);
}
else
{
elt = addr;
}
res = Fcons (Fcons (build_string (namebuf), elt), res);
}
}
xfree (ainfo);
return res;
}
Lisp_Object
network_interface_info (Lisp_Object ifname)
{
CHECK_STRING (ifname);
return network_interface_get_info (ifname);
}
\f
/* Workhorse for w32-read-registry, which see. */
Lisp_Object
w32_read_registry (HKEY rootkey, Lisp_Object lkey, Lisp_Object lname)
{
HKEY hkey = NULL;
LONG status;
DWORD vsize, vtype;
LPBYTE pvalue;
Lisp_Object val, retval;
const char *key, *value_name = NULL;
/* The following sizes are according to size limitations
documented in MSDN. */
wchar_t key_w[255+1];
wchar_t value_w[16*1024+1];
bool use_unicode = is_windows_9x () == 0;
if (use_unicode)
{
Lisp_Object encoded_key, encoded_vname;
/* Convert input strings to UTF-16. */
encoded_key = code_convert_string_norecord (lkey, Qutf_16le, 1);
memcpy (key_w, SSDATA (encoded_key), SBYTES (encoded_key));
/* wchar_t strings need to be terminated by 2 null bytes. */
key_w [SBYTES (encoded_key)/2] = L'\0';
encoded_vname = code_convert_string_norecord (lname, Qutf_16le, 1);
memcpy (value_w, SSDATA (encoded_vname), SBYTES (encoded_vname));
value_w[SBYTES (encoded_vname)/2] = L'\0';
/* Mirror the slashes, if required. */
for (int i = 0; i < SBYTES (encoded_key)/2; i++)
{
if (key_w[i] == L'/')
key_w[i] = L'\\';
}
if ((status = reg_open_key_ex_w (rootkey, key_w, 0,
KEY_READ, &hkey)) == ERROR_NOT_SUPPORTED
|| (status = reg_query_value_ex_w (hkey, value_w, NULL, NULL, NULL,
&vsize)) == ERROR_NOT_SUPPORTED
|| status != ERROR_SUCCESS)
{
if (hkey)
RegCloseKey (hkey);
if (status != ERROR_NOT_SUPPORTED)
return Qnil;
use_unicode = 0; /* fall back to non-Unicode calls */
}
}
if (!use_unicode)
{
/* Need to copy LKEY because we are going to modify it. */
Lisp_Object local_lkey = Fcopy_sequence (lkey);
/* Mirror the slashes. Note: this has to be done before
encoding, because after encoding we cannot guarantee that a
slash '/' always stands for itself, it could be part of some
multibyte sequence. */
for (int i = 0; i < SBYTES (local_lkey); i++)
{
if (SSDATA (local_lkey)[i] == '/')
SSDATA (local_lkey)[i] = '\\';
}
key = SSDATA (ENCODE_SYSTEM (local_lkey));
value_name = SSDATA (ENCODE_SYSTEM (lname));
if ((status = RegOpenKeyEx (rootkey, key, 0,
KEY_READ, &hkey)) != ERROR_SUCCESS
|| (status = RegQueryValueEx (hkey, value_name, NULL,
NULL, NULL, &vsize)) != ERROR_SUCCESS)
{
if (hkey)
RegCloseKey (hkey);
return Qnil;
}
}
pvalue = xzalloc (vsize);
if (use_unicode)
status = reg_query_value_ex_w (hkey, value_w, NULL, &vtype, pvalue, &vsize);
else
status = RegQueryValueEx (hkey, value_name, NULL, &vtype, pvalue, &vsize);
if (status != ERROR_SUCCESS)
{
xfree (pvalue);
RegCloseKey (hkey);
return Qnil;
}
switch (vtype)
{
case REG_NONE:
retval = Qt;
break;
case REG_DWORD:
retval = INT_TO_INTEGER (*((DWORD *)pvalue));
break;
case REG_QWORD:
retval = INT_TO_INTEGER (*((long long *)pvalue));
break;
case REG_BINARY:
{
int i;
unsigned char *dbuf = (unsigned char *)pvalue;
val = make_uninit_vector (vsize);
for (i = 0; i < vsize; i++)
ASET (val, i, make_fixnum (dbuf[i]));
retval = val;
break;
}
case REG_SZ:
if (use_unicode)
{
/* pvalue ends with 2 null bytes, but we need only one,
and AUTO_STRING_WITH_LEN will add it. */
if (pvalue[vsize - 1] == '\0')
vsize -= 2;
AUTO_STRING_WITH_LEN (sval, (char *)pvalue, vsize);
retval = from_unicode (sval);
}
else
{
/* Don't waste a byte on the terminating null character,
since make_unibyte_string will add one anyway. */
if (pvalue[vsize - 1] == '\0')
vsize--;
retval = DECODE_SYSTEM (make_unibyte_string (pvalue, vsize));
}
break;
case REG_EXPAND_SZ:
if (use_unicode)
{
wchar_t expanded_w[32*1024];
DWORD dsize = sizeof (expanded_w) / 2;
DWORD produced = expand_environment_strings_w ((wchar_t *)pvalue,
expanded_w,
dsize);
if (produced > 0 && produced < dsize)
{
AUTO_STRING_WITH_LEN (sval, (char *)expanded_w,
produced * 2 - 2);
retval = from_unicode (sval);
}
else
{
if (pvalue[vsize - 1] == '\0')
vsize -= 2;
AUTO_STRING_WITH_LEN (sval, (char *)pvalue, vsize);
retval = from_unicode (sval);
}
}
else
{
char expanded[32*1024]; /* size limitation according to MSDN */
DWORD produced = ExpandEnvironmentStrings ((char *)pvalue,
expanded,
sizeof (expanded));
if (produced > 0 && produced < sizeof (expanded))
retval = make_unibyte_string (expanded, produced - 1);
else
{
if (pvalue[vsize - 1] == '\0')
vsize--;
retval = make_unibyte_string (pvalue, vsize);
}
retval = DECODE_SYSTEM (retval);
}
break;
case REG_MULTI_SZ:
if (use_unicode)
{
wchar_t *wp = (wchar_t *)pvalue;
val = Qnil;
do {
size_t wslen = wcslen (wp);
AUTO_STRING_WITH_LEN (sval, (char *)wp, wslen * 2);
val = Fcons (from_unicode (sval), val);
wp += wslen + 1;
} while (*wp);
}
else
{
char *p = (char *)pvalue;
val = Qnil;
do {
size_t slen = strlen (p);
val = Fcons (DECODE_SYSTEM (make_unibyte_string (p, slen)), val);
p += slen + 1;
} while (*p);
}
retval = Fnreverse (val);
break;
default:
error ("unsupported registry data type: %d", (int)vtype);
}
xfree (pvalue);
RegCloseKey (hkey);
return retval;
}
\f
/* The Windows CRT functions are "optimized for speed", so they don't
check for timezone and DST changes if they were last called less
than 1 minute ago (see http://support.microsoft.com/kb/821231). So
all Emacs features that repeatedly call time functions (e.g.,
display-time) are in real danger of missing timezone and DST
changes. Calling tzset before each localtime call fixes that. */
struct tm *
sys_localtime (const time_t *t)
{
tzset ();
return localtime (t);
}
\f
/* Try loading LIBRARY_ID from the file(s) specified in
Vdynamic_library_alist. If the library is loaded successfully,
return the handle of the DLL, and record the filename in the
property :loaded-from of LIBRARY_ID. If the library could not be
found, or when it was already loaded (because the handle is not
recorded anywhere, and so is lost after use), return NULL.
We could also save the handle in :loaded-from, but currently
there's no use case for it. */
HMODULE
w32_delayed_load (Lisp_Object library_id)
{
HMODULE dll_handle = NULL;
CHECK_SYMBOL (library_id);
if (CONSP (Vdynamic_library_alist)
&& NILP (Fassq (library_id, Vlibrary_cache)))
{
Lisp_Object found = Qnil;
Lisp_Object dlls = Fassq (library_id, Vdynamic_library_alist);
if (CONSP (dlls))
for (dlls = XCDR (dlls); CONSP (dlls); dlls = XCDR (dlls))
{
Lisp_Object dll = XCAR (dlls);
char name[MAX_UTF8_PATH];
DWORD res = -1;
CHECK_STRING (dll);
dll = ENCODE_FILE (dll);
if (w32_unicode_filenames)
{
wchar_t name_w[MAX_PATH];
filename_to_utf16 (SSDATA (dll), name_w);
dll_handle = LoadLibraryW (name_w);
if (dll_handle)
{
res = GetModuleFileNameW (dll_handle, name_w,
sizeof (name_w));
if (res > 0)
filename_from_utf16 (name_w, name);
}
}
else
{
char name_a[MAX_PATH];
filename_to_ansi (SSDATA (dll), name_a);
dll_handle = LoadLibraryA (name_a);
if (dll_handle)
{
res = GetModuleFileNameA (dll_handle, name_a,
sizeof (name_a));
if (res > 0)
filename_from_ansi (name_a, name);
}
}
if (dll_handle)
{
ptrdiff_t len = strlen (name);
found = Fcons (dll,
(res > 0)
/* Possibly truncated */
? make_specified_string (name, -1, len, 1)
: Qnil);
/* This prevents thread start and end notifications
from being sent to the DLL, for every thread we
start. We don't need those notifications because
threads we create never use any of these DLLs, only
the main thread uses them. This is supposed to
speed up thread creation. */
DisableThreadLibraryCalls (dll_handle);
break;
}
}
Fput (library_id, QCloaded_from, found);
}
return dll_handle;
}
\f
void
check_windows_init_file (void)
{
/* A common indication that Emacs is not installed properly is when
it cannot find the Windows installation file. If this file does
not exist in the expected place, tell the user. */
if (!noninteractive && !inhibit_window_system
/* Vload_path is not yet initialized when we are loading
loadup.el. */
&& NILP (Vpurify_flag))
{
Lisp_Object init_file;
int fd;
/* Implementation note: this function runs early during Emacs
startup, before startup.el is run. So Vload_path is still in
its initial unibyte form, but it holds UTF-8 encoded file
names, since init_callproc was already called. So we do not
need to ENCODE_FILE here, but we do need to convert the file
names from UTF-8 to ANSI. */
init_file = build_string ("term/w32-win");
fd =
openp (Vload_path, init_file, Fget_load_suffixes (), NULL, Qnil, 0, 0);
if (fd < 0)
{
Lisp_Object load_path_print = Fprin1_to_string (Vload_path, Qnil);
char *init_file_name = SSDATA (init_file);
char *load_path = SSDATA (load_path_print);
char *buffer = alloca (1024
+ strlen (init_file_name)
+ strlen (load_path));
char *msg = buffer;
int needed;
sprintf (buffer,
"The Emacs Windows initialization file \"%s.el\" "
"could not be found in your Emacs installation. "
"Emacs checked the following directories for this file:\n"
"\n%s\n\n"
"When Emacs cannot find this file, it usually means that it "
"was not installed properly, or its distribution file was "
"not unpacked properly.\nSee the README.W32 file in the "
"top-level Emacs directory for more information.",
init_file_name, load_path);
needed = pMultiByteToWideChar (CP_UTF8, multiByteToWideCharFlags,
buffer, -1, NULL, 0);
if (needed > 0)
{
wchar_t *msg_w = alloca ((needed + 1) * sizeof (wchar_t));
pMultiByteToWideChar (CP_UTF8, multiByteToWideCharFlags, buffer,
-1, msg_w, needed);
needed = pWideCharToMultiByte (CP_ACP, 0, msg_w, -1,
NULL, 0, NULL, NULL);
if (needed > 0)
{
char *msg_a = alloca (needed + 1);
pWideCharToMultiByte (CP_ACP, 0, msg_w, -1, msg_a, needed,
NULL, NULL);
msg = msg_a;
}
}
MessageBox (NULL,
msg,
"Emacs Abort Dialog",
MB_OK | MB_ICONEXCLAMATION | MB_TASKMODAL);
/* Use the low-level system abort. */
abort ();
}
else
{
_close (fd);
}
}
}
void
term_ntproc (int ignored)
{
(void)ignored;
term_timers ();
/* shutdown the socket interface if necessary */
term_winsock ();
term_w32select ();
#if HAVE_NATIVE_IMAGE_API
w32_gdiplus_shutdown ();
#endif
}
void
init_ntproc (int dumping)
{
sigset_t initial_mask = 0;
/* Initialize the socket interface now if available and requested by
the user by defining PRELOAD_WINSOCK; otherwise loading will be
delayed until open-network-stream is called (w32-has-winsock can
also be used to dynamically load or reload winsock).
Conveniently, init_environment is called before us, so
PRELOAD_WINSOCK can be set in the registry. */
/* Always initialize this correctly. */
winsock_lib = NULL;
if (getenv ("PRELOAD_WINSOCK") != NULL)
init_winsock (TRUE);
/* Initial preparation for subprocess support: replace our standard
handles with non-inheritable versions. */
{
HANDLE parent;
HANDLE stdin_save = INVALID_HANDLE_VALUE;
HANDLE stdout_save = INVALID_HANDLE_VALUE;
HANDLE stderr_save = INVALID_HANDLE_VALUE;
parent = GetCurrentProcess ();
/* ignore errors when duplicating and closing; typically the
handles will be invalid when running as a gui program. */
DuplicateHandle (parent,
GetStdHandle (STD_INPUT_HANDLE),
parent,
&stdin_save,
0,
FALSE,
DUPLICATE_SAME_ACCESS);
DuplicateHandle (parent,
GetStdHandle (STD_OUTPUT_HANDLE),
parent,
&stdout_save,
0,
FALSE,
DUPLICATE_SAME_ACCESS);
DuplicateHandle (parent,
GetStdHandle (STD_ERROR_HANDLE),
parent,
&stderr_save,
0,
FALSE,
DUPLICATE_SAME_ACCESS);
fclose (stdin);
fclose (stdout);
fclose (stderr);
if (stdin_save != INVALID_HANDLE_VALUE)
_open_osfhandle ((intptr_t) stdin_save, O_TEXT);
else
_open ("nul", O_TEXT | O_NOINHERIT | O_RDONLY);
_fdopen (0, "r");
if (stdout_save != INVALID_HANDLE_VALUE)
_open_osfhandle ((intptr_t) stdout_save, O_TEXT);
else
_open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY);
_fdopen (1, "w");
if (stderr_save != INVALID_HANDLE_VALUE)
_open_osfhandle ((intptr_t) stderr_save, O_TEXT);
else
_open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY);
_fdopen (2, "w");
}
/* unfortunately, atexit depends on implementation of malloc */
/* atexit (term_ntproc); */
if (!dumping)
{
/* Make sure we start with all signals unblocked. */
sigprocmask (SIG_SETMASK, &initial_mask, NULL);
signal (SIGABRT, term_ntproc);
}
init_timers ();
/* determine which drives are fixed, for GetCachedVolumeInformation */
{
/* GetDriveType must have trailing backslash. */
char drive[] = "A:\\";
/* Loop over all possible drive letters */
while (*drive <= 'Z')
{
/* Record if this drive letter refers to a fixed drive. */
fixed_drives[DRIVE_INDEX (*drive)] =
(GetDriveType (drive) == DRIVE_FIXED);
(*drive)++;
}
/* Reset the volume info cache. */
volume_cache = NULL;
}
}
/*
shutdown_handler ensures that buffers' autosave files are
up to date when the user logs off, or the system shuts down.
*/
static BOOL WINAPI
shutdown_handler (DWORD type)
{
/* Ctrl-C and Ctrl-Break are already suppressed, so don't handle them. */
if (type == CTRL_CLOSE_EVENT /* User closes console window. */
|| type == CTRL_LOGOFF_EVENT /* User logs off. */
|| type == CTRL_SHUTDOWN_EVENT) /* User shutsdown. */
{
/* If we are being shut down in noninteractive mode, we don't
care about the message stack, so clear it to avoid abort in
shut_down_emacs. This happens when an noninteractive Emacs
is invoked as a subprocess of Emacs, and the parent wants to
kill us, e.g. because it's about to exit. */
if (noninteractive)
clear_message_stack ();
/* Shut down cleanly, making sure autosave files are up to date. */
shut_down_emacs (0, Qnil);
}
/* Allow other handlers to handle this signal. */
return FALSE;
}
/* On Windows 9X, load UNICOWS.DLL and return its handle, or die. On
NT, return a handle to GDI32.DLL. */
HANDLE
maybe_load_unicows_dll (void)
{
if (os_subtype == OS_SUBTYPE_9X)
{
HANDLE ret = LoadLibrary ("Unicows.dll");
if (ret)
{
/* These two functions are present on Windows 9X as stubs
that always fail. We need the real implementations from
UNICOWS.DLL, so we must call these functions through
pointers, and assign the correct addresses to these
pointers at program startup (see emacs.c, which calls
this function early on). */
pMultiByteToWideChar = (MultiByteToWideChar_Proc)
get_proc_addr (ret, "MultiByteToWideChar");
pWideCharToMultiByte = (WideCharToMultiByte_Proc)
get_proc_addr (ret, "WideCharToMultiByte");
multiByteToWideCharFlags = MB_ERR_INVALID_CHARS;
return ret;
}
else
{
int button;
button = MessageBox (NULL,
"Emacs cannot load the UNICOWS.DLL library.\n"
"This library is essential for using Emacs\n"
"on this system. You need to install it.\n\n"
"Emacs will exit when you click OK.",
"Emacs cannot load UNICOWS.DLL",
MB_ICONERROR | MB_TASKMODAL
| MB_SETFOREGROUND | MB_OK);
switch (button)
{
case IDOK:
default:
exit (1);
}
}
}
else
{
/* On NT family of Windows, these two functions are always
linked in, so we just assign their addresses to the 2
pointers; no need for the LoadLibrary dance. */
pMultiByteToWideChar = MultiByteToWideChar;
pWideCharToMultiByte = WideCharToMultiByte;
/* On NT 4.0, though, MB_ERR_INVALID_CHARS is not supported. */
if (w32_major_version < 5)
multiByteToWideCharFlags = 0;
else
multiByteToWideCharFlags = MB_ERR_INVALID_CHARS;
return LoadLibrary ("Gdi32.dll");
}
}
/* Relocate a directory specified by epaths.h, using the location of
our binary as an anchor. Note: this runs early during startup, so
we cannot rely on the usual file-related facilities, and in
particular the argument is assumed to be a unibyte string in system
codepage encoding. */
const char *
w32_relocate (const char *epath_dir)
{
if (strncmp (epath_dir, "%emacs_dir%/", 12) == 0)
{
static char relocated_dir[MAX_PATH];
/* Replace "%emacs_dir%" with the parent of the directory where
our binary lives. Note that init_environment was not yet
called, so we cannot rely on emacs_dir being set in the
environment. */
if (GetModuleFileNameA (NULL, relocated_dir, MAX_PATH))
{
char *p = _mbsrchr (relocated_dir, '\\');
if (p)
{
*p = '\0';
if ((p = _mbsrchr (relocated_dir, '\\')) != NULL)
{
strcpy (p, epath_dir + 11);
epath_dir = relocated_dir;
}
}
}
}
return epath_dir;
}
/* Return the full absolute name of the running executable. If the
executable is a symlink, resolve it.
Note: this function is called early during startup, when Unicode
file names are not yet supported. Thus the result must be an
ANSI-encoded string. */
char *
w32_my_exename (void)
{
static char exename[MAX_PATH];
if (!GetModuleFileNameA (NULL, exename, MAX_PATH))
return NULL;
/* The caller expects us to resolve all possible symlinks in the
last component of exename, i.e. if the executable itself is a
symlink to a file in another directory. */
if (get_volume_info (exename, NULL)
&& (volume_info.flags & FILE_SUPPORTS_REPARSE_POINTS) != 0)
{
/* chase_symlinks wants its argument in UTF-8. */
char exename_utf8[MAX_UTF8_PATH];
filename_from_ansi (exename, exename_utf8);
/* If EXENAME is a symlink, replace it with its target. */
char *tgt = chase_symlinks (exename_utf8);
if (tgt != exename_utf8)
filename_to_ansi (tgt, exename);
}
return exename;
}
/* Emulate Posix 'realpath'. This is needed in
comp-el-to-eln-rel-filename. */
char *
realpath (const char *file_name, char *resolved_name)
{
char *tgt = chase_symlinks (file_name);
char target[MAX_UTF8_PATH];
if (tgt == file_name)
{
/* If FILE_NAME is not a symlink, chase_symlinks returns its
argument, possibly not in canonical absolute form. Make sure
we return a canonical file name. */
if (w32_unicode_filenames)
{
wchar_t file_w[MAX_PATH], tgt_w[MAX_PATH];
filename_to_utf16 (file_name, file_w);
if (GetFullPathNameW (file_w, MAX_PATH, tgt_w, NULL) == 0)
return NULL;
filename_from_utf16 (tgt_w, target);
}
else
{
char file_a[MAX_PATH], tgt_a[MAX_PATH];
filename_to_ansi (file_name, file_a);
if (GetFullPathNameA (file_a, MAX_PATH, tgt_a, NULL) == 0)
return NULL;
filename_from_ansi (tgt_a, target);
}
tgt = target;
}
if (resolved_name)
return strcpy (resolved_name, tgt);
return xstrdup (tgt);
}
/*
globals_of_w32 is used to initialize those global variables that
must always be initialized on startup even when the global variable
initialized is non zero (see the function main in emacs.c).
*/
void
globals_of_w32 (void)
{
HMODULE kernel32 = GetModuleHandle ("kernel32.dll");
get_process_times_fn = (GetProcessTimes_Proc)
get_proc_addr (kernel32, "GetProcessTimes");
DEFSYM (QCloaded_from, ":loaded-from");
g_b_init_is_windows_9x = 0;
g_b_init_open_process_token = 0;
g_b_init_get_token_information = 0;
g_b_init_lookup_account_sid = 0;
g_b_init_get_sid_sub_authority = 0;
g_b_init_get_sid_sub_authority_count = 0;
g_b_init_get_security_info = 0;
g_b_init_get_file_security_w = 0;
g_b_init_get_file_security_a = 0;
g_b_init_get_security_descriptor_owner = 0;
g_b_init_get_security_descriptor_group = 0;
g_b_init_is_valid_sid = 0;
g_b_init_create_toolhelp32_snapshot = 0;
g_b_init_process32_first = 0;
g_b_init_process32_next = 0;
g_b_init_open_thread_token = 0;
g_b_init_impersonate_self = 0;
g_b_init_revert_to_self = 0;
g_b_init_get_process_memory_info = 0;
g_b_init_get_process_working_set_size = 0;
g_b_init_global_memory_status = 0;
g_b_init_global_memory_status_ex = 0;
g_b_init_equal_sid = 0;
g_b_init_copy_sid = 0;
g_b_init_get_length_sid = 0;
g_b_init_get_native_system_info = 0;
g_b_init_get_system_times = 0;
g_b_init_create_symbolic_link_w = 0;
g_b_init_create_symbolic_link_a = 0;
g_b_init_get_security_descriptor_dacl = 0;
g_b_init_convert_sd_to_sddl = 0;
g_b_init_convert_sddl_to_sd = 0;
g_b_init_is_valid_security_descriptor = 0;
g_b_init_set_file_security_w = 0;
g_b_init_set_file_security_a = 0;
g_b_init_set_named_security_info_w = 0;
g_b_init_set_named_security_info_a = 0;
g_b_init_get_adapters_info = 0;
g_b_init_get_adapters_addresses = 0;
g_b_init_reg_open_key_ex_w = 0;
g_b_init_reg_query_value_ex_w = 0;
g_b_init_expand_environment_strings_w = 0;
g_b_init_compare_string_w = 0;
g_b_init_debug_break_process = 0;
g_b_init_get_user_default_ui_language = 0;
num_of_processors = 0;
/* The following sets a handler for shutdown notifications for
console apps. This actually applies to Emacs in both console and
GUI modes, since we had to fool windows into thinking emacs is a
console application to get console mode to work. */
SetConsoleCtrlHandler (shutdown_handler, TRUE);
/* "None" is the default group name on standalone workstations. */
strcpy (dflt_group_name, "None");
/* Reset, in case it has some value inherited from dump time. */
w32_stat_get_owner_group = 0;
/* If w32_unicode_filenames is non-zero, we will be using Unicode
(a.k.a. "wide") APIs to invoke functions that accept file
names. */
if (is_windows_9x ())
w32_unicode_filenames = 0;
else
w32_unicode_filenames = 1;
#ifdef HAVE_MODULES
dynlib_reset_last_error ();
#endif
w32_crypto_hprov = (HCRYPTPROV)0;
/* We need to forget about libraries that were loaded during the
dumping process (e.g. libgccjit) */
Vlibrary_cache = Qnil;
}
/* For make-serial-process */
int
serial_open (Lisp_Object port_obj)
{
char *port = SSDATA (port_obj);
HANDLE hnd;
child_process *cp;
int fd = -1;
hnd = CreateFile (port, GENERIC_READ | GENERIC_WRITE, 0, 0,
OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
if (hnd == INVALID_HANDLE_VALUE)
error ("Could not open %s", port);
fd = (int) _open_osfhandle ((intptr_t) hnd, 0);
if (fd == -1)
error ("Could not open %s", port);
cp = new_child ();
if (!cp)
error ("Could not create child process");
cp->fd = fd;
cp->status = STATUS_READ_ACKNOWLEDGED;
fd_info[ fd ].hnd = hnd;
fd_info[ fd ].flags |=
FILE_READ | FILE_WRITE | FILE_BINARY | FILE_SERIAL;
if (fd_info[ fd ].cp != NULL)
{
error ("fd_info[fd = %d] is already in use", fd);
}
fd_info[ fd ].cp = cp;
cp->ovl_read.hEvent = CreateEvent (NULL, TRUE, FALSE, NULL);
if (cp->ovl_read.hEvent == NULL)
error ("Could not create read event");
cp->ovl_write.hEvent = CreateEvent (NULL, TRUE, FALSE, NULL);
if (cp->ovl_write.hEvent == NULL)
error ("Could not create write event");
return fd;
}
/* For serial-process-configure */
void
serial_configure (struct Lisp_Process *p, Lisp_Object contact)
{
Lisp_Object childp2 = Qnil;
Lisp_Object tem = Qnil;
HANDLE hnd;
DCB dcb;
COMMTIMEOUTS ct;
char summary[4] = "???"; /* This usually becomes "8N1". */
if ((fd_info[ p->outfd ].flags & FILE_SERIAL) == 0)
error ("Not a serial process");
hnd = fd_info[ p->outfd ].hnd;
childp2 = Fcopy_sequence (p->childp);
/* Initialize timeouts for blocking read and blocking write. */
if (!GetCommTimeouts (hnd, &ct))
error ("GetCommTimeouts() failed");
ct.ReadIntervalTimeout = 0;
ct.ReadTotalTimeoutMultiplier = 0;
ct.ReadTotalTimeoutConstant = 0;
ct.WriteTotalTimeoutMultiplier = 0;
ct.WriteTotalTimeoutConstant = 0;
if (!SetCommTimeouts (hnd, &ct))
error ("SetCommTimeouts() failed");
/* Read port attributes and prepare default configuration. */
memset (&dcb, 0, sizeof (dcb));
dcb.DCBlength = sizeof (DCB);
if (!GetCommState (hnd, &dcb))
error ("GetCommState() failed");
dcb.fBinary = TRUE;
dcb.fNull = FALSE;
dcb.fAbortOnError = FALSE;
/* dcb.XonLim and dcb.XoffLim are set by GetCommState() */
dcb.ErrorChar = 0;
dcb.EofChar = 0;
dcb.EvtChar = 0;
/* Configure speed. */
if (!NILP (Fplist_member (contact, QCspeed)))
tem = Fplist_get (contact, QCspeed);
else
tem = Fplist_get (p->childp, QCspeed);
CHECK_FIXNUM (tem);
dcb.BaudRate = XFIXNUM (tem);
childp2 = Fplist_put (childp2, QCspeed, tem);
/* Configure bytesize. */
if (!NILP (Fplist_member (contact, QCbytesize)))
tem = Fplist_get (contact, QCbytesize);
else
tem = Fplist_get (p->childp, QCbytesize);
if (NILP (tem))
tem = make_fixnum (8);
CHECK_FIXNUM (tem);
if (XFIXNUM (tem) != 7 && XFIXNUM (tem) != 8)
error (":bytesize must be nil (8), 7, or 8");
dcb.ByteSize = XFIXNUM (tem);
summary[0] = XFIXNUM (tem) + '0';
childp2 = Fplist_put (childp2, QCbytesize, tem);
/* Configure parity. */
if (!NILP (Fplist_member (contact, QCparity)))
tem = Fplist_get (contact, QCparity);
else
tem = Fplist_get (p->childp, QCparity);
if (!NILP (tem) && !EQ (tem, Qeven) && !EQ (tem, Qodd))
error (":parity must be nil (no parity), `even', or `odd'");
dcb.fParity = FALSE;
dcb.Parity = NOPARITY;
dcb.fErrorChar = FALSE;
if (NILP (tem))
{
summary[1] = 'N';
}
else if (EQ (tem, Qeven))
{
summary[1] = 'E';
dcb.fParity = TRUE;
dcb.Parity = EVENPARITY;
dcb.fErrorChar = TRUE;
}
else if (EQ (tem, Qodd))
{
summary[1] = 'O';
dcb.fParity = TRUE;
dcb.Parity = ODDPARITY;
dcb.fErrorChar = TRUE;
}
childp2 = Fplist_put (childp2, QCparity, tem);
/* Configure stopbits. */
if (!NILP (Fplist_member (contact, QCstopbits)))
tem = Fplist_get (contact, QCstopbits);
else
tem = Fplist_get (p->childp, QCstopbits);
if (NILP (tem))
tem = make_fixnum (1);
CHECK_FIXNUM (tem);
if (XFIXNUM (tem) != 1 && XFIXNUM (tem) != 2)
error (":stopbits must be nil (1 stopbit), 1, or 2");
summary[2] = XFIXNUM (tem) + '0';
if (XFIXNUM (tem) == 1)
dcb.StopBits = ONESTOPBIT;
else if (XFIXNUM (tem) == 2)
dcb.StopBits = TWOSTOPBITS;
childp2 = Fplist_put (childp2, QCstopbits, tem);
/* Configure flowcontrol. */
if (!NILP (Fplist_member (contact, QCflowcontrol)))
tem = Fplist_get (contact, QCflowcontrol);
else
tem = Fplist_get (p->childp, QCflowcontrol);
if (!NILP (tem) && !EQ (tem, Qhw) && !EQ (tem, Qsw))
error (":flowcontrol must be nil (no flowcontrol), `hw', or `sw'");
dcb.fOutxCtsFlow = FALSE;
dcb.fOutxDsrFlow = FALSE;
dcb.fDtrControl = DTR_CONTROL_DISABLE;
dcb.fDsrSensitivity = FALSE;
dcb.fTXContinueOnXoff = FALSE;
dcb.fOutX = FALSE;
dcb.fInX = FALSE;
dcb.fRtsControl = RTS_CONTROL_DISABLE;
dcb.XonChar = 17; /* Control-Q */
dcb.XoffChar = 19; /* Control-S */
if (NILP (tem))
{
/* Already configured. */
}
else if (EQ (tem, Qhw))
{
dcb.fRtsControl = RTS_CONTROL_HANDSHAKE;
dcb.fOutxCtsFlow = TRUE;
}
else if (EQ (tem, Qsw))
{
dcb.fOutX = TRUE;
dcb.fInX = TRUE;
}
childp2 = Fplist_put (childp2, QCflowcontrol, tem);
/* Activate configuration. */
if (!SetCommState (hnd, &dcb))
error ("SetCommState() failed");
childp2 = Fplist_put (childp2, QCsummary, build_string (summary));
pset_childp (p, childp2);
}
/* For make-pipe-process */
void
register_aux_fd (int infd)
{
child_process *cp;
cp = new_child ();
if (!cp)
error ("Could not create child process");
cp->fd = infd;
cp->status = STATUS_READ_ACKNOWLEDGED;
if (fd_info[ infd ].cp != NULL)
{
error ("fd_info[fd = %d] is already in use", infd);
}
fd_info[ infd ].cp = cp;
fd_info[ infd ].hnd = (HANDLE) _get_osfhandle (infd);
}
#ifdef HAVE_GNUTLS
ssize_t
emacs_gnutls_pull (gnutls_transport_ptr_t p, void* buf, size_t sz)
{
int n, err;
struct Lisp_Process *process = (struct Lisp_Process *)p;
int fd = process->infd;
n = sys_read (fd, (char*)buf, sz);
if (n >= 0)
return n;
err = errno;
/* Translate the WSAEWOULDBLOCK alias EWOULDBLOCK to EAGAIN. */
if (err == EWOULDBLOCK)
err = EAGAIN;
emacs_gnutls_transport_set_errno (process->gnutls_state, err);
return -1;
}
ssize_t
emacs_gnutls_push (gnutls_transport_ptr_t p, const void* buf, size_t sz)
{
struct Lisp_Process *process = (struct Lisp_Process *)p;
int fd = process->outfd;
ssize_t n = sys_write (fd, buf, sz);
/* 0 or more bytes written means everything went fine. */
if (n >= 0)
return n;
/* Negative bytes written means we got an error in errno.
Translate the WSAEWOULDBLOCK alias EWOULDBLOCK to EAGAIN. */
emacs_gnutls_transport_set_errno (process->gnutls_state,
errno == EWOULDBLOCK ? EAGAIN : errno);
return -1;
}
#endif /* HAVE_GNUTLS */
/* end of w32.c */
|