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getty: fix for NOCTTY killing us with SIGHUP

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2012-04-26 10:53:48 +02:00
parent b84dafb5e5
commit eced0c78a5
1 changed files with 6 additions and 0 deletions
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6
loginutils/getty.c
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@ -561,8 +561,14 @@ int getty_main(int argc UNUSED_PARAM, char **argv)
*/
fd = open("/dev/tty", O_RDWR | O_NONBLOCK);
if (fd >= 0) {
/* TIOCNOTTY sends SIGHUP to the foreground
* process group - which may include us!
* Make sure to not die on it:
*/
sighandler_t old = signal(SIGHUP, SIG_IGN);
ioctl(fd, TIOCNOTTY);
close(fd);
signal(SIGHUP, old);
}
}