control: tags -1 patch On 2018-12-17 13:24:50 [+0100], Étienne Mollier wrote: > I will keep the modification in my /usr/bin/xzcmp for some time, > in case it inadvertently breaks things.
made a patch. > Cheers Sebastian
From: Sebastian Andrzej Siewior <[email protected]> Date: Thu, 24 Dec 2020 20:56:15 +0100 Subject: [PATCH] xzdiff: Trap SIGPIPE MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The `cmp' command will return early if a difference is found while the shell script is still invoking the decompressor which writes into the closed FD. This results in SIGPIPE / exit code 141. By ignoring SIGPIPE the real return code from `cmp' is observed which is `1' and xzdiff exits with `1'. Without ignoring SIGPIPE the exitcode 141 is observed and xzdiff returns with `2'. Reported to Debian BTS as #844770. Change suggested by Étienne Mollierö. BTS: https://bugs.debian.org/844770 Signed-off-by: Sebastian Andrzej Siewior <[email protected]> --- src/scripts/xzdiff.in | 1 + 1 file changed, 1 insertion(+) diff --git a/src/scripts/xzdiff.in b/src/scripts/xzdiff.in index eb7825c1dfba9..d343a889e0e52 100644 --- a/src/scripts/xzdiff.in +++ b/src/scripts/xzdiff.in @@ -1,4 +1,5 @@ #!@POSIX_SHELL@ +trap '' PIPE # Copyright (C) 1998, 2002, 2006, 2007 Free Software Foundation # Copyright (C) 1993 Jean-loup Gailly -- 2.29.2
