From: ludo@gnu.org (Ludovic Courtès)
To: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Cc: 30116@debbugs.gnu.org
Subject: bug#30116: [PATCH] `substitute' crashes when file contains NUL characters (core-updates))
Date: Wed, 17 Jan 2018 15:37:54 +0100 [thread overview]
Message-ID: <87h8rk4kl9.fsf@gnu.org> (raw)
In-Reply-To: <87k1wjc35d.fsf_-_@gmail.com> (Maxim Cournoyer's message of "Sun, 14 Jan 2018 20:38:22 -0500")
Maxim Cournoyer <maxim.cournoyer@gmail.com> skribis:
> From 9891e428eae0ed24e0d61862b3f5e298606b79eb Mon Sep 17 00:00:00 2001
> From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
> Date: Sun, 14 Jan 2018 20:31:33 -0500
> Subject: [PATCH] utils: Prevent substitute from crashing on files containing
> NUL chars.
>
> Fixes issue #30116.
>
> * guix/build/utils.scm (substitute): Add condition to skip lines containing
> the NUL character.
[...]
> + ((string-contains line (make-string 1 #\nul))
Rather (string-index line #\nul).
> + ;; The regexp functions of the GNU C library (which Guile uses)
> + ;; cannot deal with NUL characters, so skip to the next line.
> + (format #t "skipping line with NUL characters: ~s\n" line)
> + (loop (read-line in 'concat)))
Rather (format (current-error-port) …).
It’s strange semantics, but it’s probably better than crashing in the
contexts where we use it.
Otherwise LGTM. This would have to go to the next ‘core-updates’ (or
‘core-updates-next’ in the meantime.)
Thanks!
Ludo’.
next prev parent reply other threads:[~2018-01-17 14:38 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-15 1:27 bug#30116: [PATCH] `substitute' crashes when file contains NUL characters (core-updates) Maxim Cournoyer
[not found] ` <handler.30116.B.15159796942311.ack@debbugs.gnu.org>
2018-01-15 1:38 ` bug#30116: [PATCH] `substitute' crashes when file contains NUL characters (core-updates)) Maxim Cournoyer
2018-01-17 14:37 ` Ludovic Courtès [this message]
2018-06-14 1:40 ` Maxim Cournoyer
2018-06-14 8:01 ` Ludovic Courtès
2018-06-14 7:02 ` Mark H Weaver
2018-06-14 8:02 ` Ludovic Courtès
2018-06-16 16:47 ` Maxim Cournoyer
2018-06-17 4:36 ` Mark H Weaver
2021-01-08 19:14 ` bug#30116: [PATCH] `substitute' crashes when file contains NUL characters (core-updates) Maxim Cournoyer
2021-01-08 21:42 ` Mark H Weaver
2018-01-16 11:23 ` Ludovic Courtès
2018-01-21 4:24 ` Maxim Cournoyer
2018-01-21 18:17 ` Mark H Weaver
2018-01-22 10:58 ` Ludovic Courtès
2018-01-23 4:27 ` Maxim Cournoyer
2018-01-23 14:11 ` Ludovic Courtès
2018-01-25 5:11 ` Maxim Cournoyer
2018-01-25 11:11 ` Ludovic Courtès
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