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hush: remove one sigprocmask from exit path

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2011-05-12 10:59:18 +02:00
parent 0c40a731e3
commit ebc1ee2e2a
1 changed files with 6 additions and 4 deletions
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10
shell/hush.c
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@ -1456,13 +1456,15 @@ static void record_pending_signo(int sig)
static void sigexit(int sig) NORETURN; static void sigexit(int sig) NORETURN;
static void sigexit(int sig) static void sigexit(int sig)
{ {
/* Disable all signals: job control, SIGPIPE, etc. */
sigprocmask_allsigs(SIG_BLOCK);
/* Careful: we can end up here after [v]fork. Do not restore /* Careful: we can end up here after [v]fork. Do not restore
* tty pgrp then, only top-level shell process does that */ * tty pgrp then, only top-level shell process does that */
if (G_saved_tty_pgrp && getpid() == G.root_pid) if (G_saved_tty_pgrp && getpid() == G.root_pid) {
/* Disable all signals: job control, SIGPIPE, etc.
* Mostly paranoid measure, to prevent infinite SIGTTOU.
*/
sigprocmask_allsigs(SIG_BLOCK);
tcsetpgrp(G_interactive_fd, G_saved_tty_pgrp); tcsetpgrp(G_interactive_fd, G_saved_tty_pgrp);
}
/* Not a signal, just exit */ /* Not a signal, just exit */
if (sig <= 0) if (sig <= 0)