* bug#1523: [Ivan Shmakov] process-send-string apparently mangles \r into \n
@ 2008-12-09 21:15 Sven Joachim
2009-01-12 17:24 ` richardeng
` (2 more replies)
0 siblings, 3 replies; 8+ messages in thread
From: Sven Joachim @ 2008-12-09 21:15 UTC (permalink / raw)
To: bug-gnu-emacs
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I received the following report via the Debian bug tracking system.
It is reproducible in the trunk.
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From: Ivan Shmakov <oneingray@gmail.com>
To: submit@bugs.debian.org
Cc: Ivan Shmakov <oneingray@gmail.com>
Subject: Bug#508300: process-send-string apparently mangles \r into \n
Date: Wed, 10 Dec 2008 01:14:09 +0600
Message-ID: <87abb5gnzy.fsf@violet.siamics.int>
Package: emacs22
Version: 22.2+2-5
After running the following program:
(let* ((coding-system-for-read 'binary)
(coding-system-for-write 'binary)
(p (start-process "foo" "*foo*" "od" "-td1")))
(process-send-string p "\r\n")
(process-send-eof p))
;; => #<process foo>
the `*foo*' buffer contains:
--cut: *foo*--
0000000 10 10
0000002
Process foo finished
--cut: *foo*--
While I'd expect the following instead:
--cut: *foo*--
0000000 13 10
0000002
Process foo finished
--cut: *foo*--
Compare:
(let ((coding-system-for-read 'binary)
(coding-system-for-write 'binary))
(save-excursion
(set-buffer "*foo*")
(let* ((start (point))
(end (progn (insert "\r\n") (point))))
(call-process-region start end "od" t t t "-td1"))))
--cut: *foo*--
0000000 13 10
0000002
--cut: *foo*--
^ permalink raw reply [flat|nested] 8+ messages in thread
* bug#1523: [Ivan Shmakov] process-send-string apparently mangles \r into \n
2008-12-09 21:15 bug#1523: [Ivan Shmakov] process-send-string apparently mangles \r into \n Sven Joachim
@ 2009-01-12 17:24 ` richardeng
2009-01-12 17:58 ` richardeng
2011-09-11 18:26 ` Lars Magne Ingebrigtsen
2 siblings, 0 replies; 8+ messages in thread
From: richardeng @ 2009-01-12 17:24 UTC (permalink / raw)
To: Sven Joachim, 1523; +Cc: bug-gnu-emacs
Sven Joachim wrote:
> I received the following report via the Debian bug tracking system.
> It is reproducible in the trunk.
>
>
>
> ------------------------------------------------------------------------
>
> Subject:
> Bug#508300: process-send-string apparently mangles \r into \n
> From:
> Ivan Shmakov <oneingray@gmail.com>
> Date:
> Wed, 10 Dec 2008 01:14:09 +0600
> To:
> submit@bugs.debian.org
>
> To:
> submit@bugs.debian.org
> CC:
> Ivan Shmakov <oneingray@gmail.com>
>
>
> Package: emacs22
> Version: 22.2+2-5
>
> After running the following program:
>
> (let* ((coding-system-for-read 'binary)
> (coding-system-for-write 'binary)
> (p (start-process "foo" "*foo*" "od" "-td1")))
> (process-send-string p "\r\n")
> (process-send-eof p))
> ;; => #<process foo>
>
> the `*foo*' buffer contains:
>
> --cut: *foo*--
> 0000000 10 10
> 0000002
>
> Process foo finished
> --cut: *foo*--
>
> While I'd expect the following instead:
>
> --cut: *foo*--
> 0000000 13 10
> 0000002
>
> Process foo finished
> --cut: *foo*--
>
> Compare:
>
> (let ((coding-system-for-read 'binary)
> (coding-system-for-write 'binary))
> (save-excursion
> (set-buffer "*foo*")
> (let* ((start (point))
> (end (progn (insert "\r\n") (point))))
> (call-process-region start end "od" t t t "-td1"))))
>
> --cut: *foo*--
> 0000000 13 10
> 0000002
> --cut: *foo*--
>
>
>
(start-process "foo" "*foo*" "od" "-td1") // pty is used,
pty driver will map '\r' <-> '\n'
(call-process-region start end "od" t t t "-td1") // temp file is
used, no such problem
--- process.c.~1.577.~ 2009-01-03 07:03:59.000000000
-0800
+++ process.c 2009-01-13 01:18:08.000000000
-0800
@@ -1871,6 +1871,13 @@
forkin = forkout =
-1;
#endif /* not USG, or USG_SUBTTY_WORKS
*/
pty_flag =
1;
+
{
+ struct emacs_tty
settings;
+ EMACS_GET_TTY(outchannel,
&settings);
+ settings.main.c_iflag &= ~ICRNL; /* Disable map of CR to
NL on input */
+ settings.main.c_iflag &= ~INLCR; /* Disable map of NL to
CR on input */
+ EMACS_SET_TTY(outchannel, &settings,
1);
+
}
}
else
#endif /* HAVE_PTYS */
^ permalink raw reply [flat|nested] 8+ messages in thread
* bug#1523: [Ivan Shmakov] process-send-string apparently mangles \r into \n
2008-12-09 21:15 bug#1523: [Ivan Shmakov] process-send-string apparently mangles \r into \n Sven Joachim
2009-01-12 17:24 ` richardeng
@ 2009-01-12 17:58 ` richardeng
2011-09-11 18:26 ` Lars Magne Ingebrigtsen
2 siblings, 0 replies; 8+ messages in thread
From: richardeng @ 2009-01-12 17:58 UTC (permalink / raw)
To: Sven Joachim, 1523; +Cc: bug-gnu-emacs
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^ permalink raw reply [flat|nested] 8+ messages in thread
* bug#1523: [Ivan Shmakov] process-send-string apparently mangles \r into \n
2008-12-09 21:15 bug#1523: [Ivan Shmakov] process-send-string apparently mangles \r into \n Sven Joachim
2009-01-12 17:24 ` richardeng
2009-01-12 17:58 ` richardeng
@ 2011-09-11 18:26 ` Lars Magne Ingebrigtsen
2011-09-11 19:24 ` Andreas Schwab
2 siblings, 1 reply; 8+ messages in thread
From: Lars Magne Ingebrigtsen @ 2011-09-11 18:26 UTC (permalink / raw)
To: Sven Joachim; +Cc: Ivan Shmakov, 1523
Sven Joachim <svenjoac@gmx.de> writes:
> (let* ((coding-system-for-read 'binary)
> (coding-system-for-write 'binary)
> (p (start-process "foo" "*foo*" "od" "-td1")))
> (process-send-string p "\r\n")
> (process-send-eof p))
> ;; => #<process foo>
>
> the `*foo*' buffer contains:
>
> --cut: *foo*--
> 0000000 10 10
> 0000002
>
> Process foo finished
I can confirm this behaviour in Emacs 24. And it's isn't just CRLF
conversion -- all "\r"s are translated into "\n":
(let* ((coding-system-for-read 'binary)
(coding-system-for-write 'binary)
(p (start-process "foo" "*foo*" "od" "-td1")))
(process-send-string p "a\rb\n")
(process-send-eof p))
Gives:
Process foo<2> finished
0000000 97 10 98 10
0000004
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog http://lars.ingebrigtsen.no/
^ permalink raw reply [flat|nested] 8+ messages in thread
* bug#1523: [Ivan Shmakov] process-send-string apparently mangles \r into \n
2011-09-11 18:26 ` Lars Magne Ingebrigtsen
@ 2011-09-11 19:24 ` Andreas Schwab
2011-09-11 19:27 ` Lars Magne Ingebrigtsen
0 siblings, 1 reply; 8+ messages in thread
From: Andreas Schwab @ 2011-09-11 19:24 UTC (permalink / raw)
To: Lars Magne Ingebrigtsen; +Cc: Ivan Shmakov, Sven Joachim, 1523
Lars Magne Ingebrigtsen <larsi@gnus.org> writes:
> I can confirm this behaviour in Emacs 24. And it's isn't just CRLF
> conversion -- all "\r"s are translated into "\n":
That's stty icrnl.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
^ permalink raw reply [flat|nested] 8+ messages in thread
* bug#1523: [Ivan Shmakov] process-send-string apparently mangles \r into \n
2011-09-11 19:24 ` Andreas Schwab
@ 2011-09-11 19:27 ` Lars Magne Ingebrigtsen
2011-09-11 20:23 ` Andreas Schwab
0 siblings, 1 reply; 8+ messages in thread
From: Lars Magne Ingebrigtsen @ 2011-09-11 19:27 UTC (permalink / raw)
To: Andreas Schwab; +Cc: Ivan Shmakov, Sven Joachim, 1523
Andreas Schwab <schwab@linux-m68k.org> writes:
>> I can confirm this behaviour in Emacs 24. And it's isn't just CRLF
>> conversion -- all "\r"s are translated into "\n":
>
> That's stty icrnl.
So... is this a bug or not?
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog http://lars.ingebrigtsen.no/
^ permalink raw reply [flat|nested] 8+ messages in thread
* bug#1523: [Ivan Shmakov] process-send-string apparently mangles \r into \n
2011-09-11 19:27 ` Lars Magne Ingebrigtsen
@ 2011-09-11 20:23 ` Andreas Schwab
2011-09-11 20:40 ` Lars Magne Ingebrigtsen
0 siblings, 1 reply; 8+ messages in thread
From: Andreas Schwab @ 2011-09-11 20:23 UTC (permalink / raw)
To: Lars Magne Ingebrigtsen; +Cc: Ivan Shmakov, Sven Joachim, 1523
Lars Magne Ingebrigtsen <larsi@gnus.org> writes:
> Andreas Schwab <schwab@linux-m68k.org> writes:
>
>>> I can confirm this behaviour in Emacs 24. And it's isn't just CRLF
>>> conversion -- all "\r"s are translated into "\n":
>>
>> That's stty icrnl.
>
> So... is this a bug or not?
Don't use a pty if you want a literal communication channel.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2011-09-11 20:40 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2008-12-09 21:15 bug#1523: [Ivan Shmakov] process-send-string apparently mangles \r into \n Sven Joachim
2009-01-12 17:24 ` richardeng
2009-01-12 17:58 ` richardeng
2011-09-11 18:26 ` Lars Magne Ingebrigtsen
2011-09-11 19:24 ` Andreas Schwab
2011-09-11 19:27 ` Lars Magne Ingebrigtsen
2011-09-11 20:23 ` Andreas Schwab
2011-09-11 20:40 ` Lars Magne Ingebrigtsen
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