all messages for Guix-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
blob c2a4b292f7d3c53f7aa8bf0e95824ad2d11c167e 2289 bytes (raw)
name: gnu/packages/patches/chez-scheme-bin-sh.patch 	 # note: path name is non-authoritative(*)

 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
 
From b8428ad25b437acf4bd8210b14db207b71fe44c3 Mon Sep 17 00:00:00 2001
From: Philip McGrath <philip@philipmcgrath.com>
Date: Wed, 24 Aug 2022 19:55:14 -0400
Subject: [PATCH] patch s_process for "/bin/sh" on Guix

If:

    1. The nonstandard but ubiquitous macro `_PATH_BSHELL` from
       <paths.h> is defined; and

    2. The path specified by `_PATH_BSHELL` exists;

then `s_process` will call `execl` with the file specified by
`_PATH_BSHELL` instead of "/bin/sh".

Checking that the path specified by `_PATH_BSHELL` exists safeguards
against obscure errors if attempting to use the patched Chez Scheme
or executables it builds in non-Guix envoronments.

This patch does not change the behavior of `s_system`, which relies
on `system` from the C library.
---

Notes:
    See also racket-chez-scheme-bin-sh.patch, racket-rktio-bin-sh.patch,
    and zuo-bin-sh.patch.

 c/prim5.c | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/c/prim5.c b/c/prim5.c
index 90b087f1..284f063f 100644
--- a/c/prim5.c
+++ b/c/prim5.c
@@ -27,6 +27,12 @@
 #include <sys/resource.h>
 #endif
 
+/* BEGIN PATCH for Guix */
+#ifndef WIN32
+# include <paths.h>
+#endif
+/* END PATCH for Guix */
+
 /* locally defined functions */
 static INT s_errno(void);
 static IBOOL s_addr_in_heap(uptr x);
@@ -875,6 +881,17 @@ static ptr s_process(char *s, IBOOL stderrp) {
 
     INT tofds[2], fromfds[2], errfds[2];
     struct sigaction act, oint_act;
+    /* BEGIN PATCH for Guix */
+#if defined(_PATH_BSHELL)
+    struct stat guix_stat_buf;
+    char *guix_sh =
+      (0 == stat(_PATH_BSHELL, &guix_stat_buf))
+      ? _PATH_BSHELL
+      : "/bin/sh";
+#else /* _PATH_BSHELL */
+    char *guix_sh = "/bin/sh";
+#endif
+    /* END PATCH for Guix */
 
     if (pipe(tofds)) S_error("process","cannot open pipes");
     if (pipe(fromfds)) {
@@ -911,7 +928,9 @@ static ptr s_process(char *s, IBOOL stderrp) {
           }
         }
 #endif /* __GNU__ Hurd */
-        execl("/bin/sh", "/bin/sh", "-c", s, NULL);
+        /* BEGIN PATCH for Guix */
+        execl(guix_sh, guix_sh, "-c", s, NULL);
+        /* END PATCH for Guix */
         _exit(1) /* only if execl fails */;
         /*NOTREACHED*/
     } else {

base-commit: 253230f7dfbb4fe777277d6bbf93f39f9567f086
-- 
2.41.0


debug log:

solving c2a4b292f7 ...
found c2a4b292f7 in https://git.savannah.gnu.org/cgit/guix.git

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/guix.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.