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(sighandler): Handle SIGTSTP specially.

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Based on suggestions from Solar Designer and Dmitry V. Levin.
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This commit is contained in:
Jim Meyering
2002-11-10 20:15:54 +00:00
parent 7acacbf29a
commit f549fc269c
1 changed files with 18 additions and 8 deletions
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26
src/ls.c
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@@ -1004,6 +1004,8 @@ restore_default_color (void)
put_indicator_direct (&color_indicator[C_RIGHT]);
}
/* Upon interrupt, suspend, hangup, etc. ensure that the
terminal text color is restored to the default. */
static void
sighandler (int sig)
{
@@ -1013,18 +1015,26 @@ sighandler (int sig)
restore_default_color ();
/* SIGTSTP is special, since the application can receive that signal more
than once. In this case, don't set the signal handler to the default.
Instead, just raise the uncatchable SIGSTOP. */
if (sig == SIGTSTP)
{
sig = SIGSTOP;
}
else
{
#ifdef SA_NOCLDSTOP
{
struct sigaction sigact;
struct sigaction sigact;
sigact.sa_handler = SIG_DFL;
sigemptyset (&sigact.sa_mask);
sigact.sa_flags = 0;
sigaction (sig, &sigact, NULL);
}
sigact.sa_handler = SIG_DFL;
sigemptyset (&sigact.sa_mask);
sigact.sa_flags = 0;
sigaction (sig, &sigact, NULL);
#else
signal (sig, SIG_DFL);
signal (sig, SIG_DFL);
#endif
}
raise (sig);
}