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author | Julian Andres Klode <jak@debian.org> | 2016-08-19 13:00:33 +0200 |
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committer | Julian Andres Klode <jak@debian.org> | 2016-10-05 21:53:38 +0200 |
commit | f5aa6a782f1a8bcf08b572415ec6b521e11a8d82 (patch) | |
tree | 67fde30fa2d3560d68129e5e558acdd5cfddeb42 /apt-private/private-cachefile.h | |
parent | 65979c215df7a4fe1585fd988e4e5a06bc5d306b (diff) |
Ignore SIGINT and SIGQUIT for Pre-Install hooks
Instead of erroring out when receiving a SIGINT, let the
child deal with it - we'll error out anyway if the child
exits with an error or due to the signal. Also ignore
SIGQUIT, as system() ignores it.
This basically fixes Bug #832593, but: we are running
the hooks via sh -c. Some shells exit with a signal
error even if the command they are executing catches
the signal and exits successfully. So far, this has
been noticed on dash, which unfortunately, is our
default shell.
Example:
$ cat trap.sh
trap 'echo int' INT; sleep 10; exit 0
$ if dash -c ./trap.sh; then echo OK: $?; else echo FAIL: $?; fi
^Cint
FAIL: 130
$ if mksh -c ./trap.sh; then echo OK: $?; else echo FAIL: $?; fi
^Cint
OK: 0
$ if bash -c ./trap.sh; then echo OK: $?; else echo FAIL: $?; fi
^Cint
OK: 0
(cherry picked from commit a6ae3d3df490e7a5a1c8324ba9dc2e63972b1529)
Diffstat (limited to 'apt-private/private-cachefile.h')
0 files changed, 0 insertions, 0 deletions