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* job.c (set_child_handler_action_flags): [SV 41341]

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Ensure signal handler is in place before alarm(1).
This commit is contained in:
Paul Smith 2014-02-01 23:08:59 -05:00
parent a7cac0f0e3
commit 88713683fe
1 changed files with 14 additions and 4 deletions
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18
job.c
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@ -1116,10 +1116,20 @@ set_child_handler_action_flags (int set_handler, int set_alarm)
/* If we're about to enter the read(), set an alarm to wake up in a
second so we can check if the load has dropped and we can start more
work. On the way out, turn off the alarm and set SIG_DFL. */
alarm (set_handler ? 1 : 0);
sa.sa_handler = set_handler ? job_noop : SIG_DFL;
sa.sa_flags = 0;
sigaction (SIGALRM, &sa, NULL);
if (set_handler)
{
sa.sa_handler = job_noop;
sa.sa_flags = 0;
sigaction (SIGALRM, &sa, NULL);
alarm (1);
}
else
{
alarm (0);
sa.sa_handler = SIG_DFL;
sa.sa_flags = 0;
sigaction (SIGALRM, &sa, NULL);
}
}
#endif
}