diff options
Diffstat (limited to 'libpthread/linuxthreads/signals.c')
| -rw-r--r-- | libpthread/linuxthreads/signals.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/libpthread/linuxthreads/signals.c b/libpthread/linuxthreads/signals.c index 0c0f2b6b1..91b88e2c7 100644 --- a/libpthread/linuxthreads/signals.c +++ b/libpthread/linuxthreads/signals.c @@ -134,6 +134,7 @@ int sigaction(int sig, const struct sigaction * act, { struct sigaction newact; struct sigaction *newactp; + void *save = NULL; #ifdef DEBUG_PT printf(__FUNCTION__": pthreads wrapper!\n"); @@ -142,6 +143,8 @@ printf(__FUNCTION__": pthreads wrapper!\n"); sig == __pthread_sig_cancel || (sig == __pthread_sig_debug && __pthread_sig_debug > 0)) return EINVAL; + if (sig > 0 && sig < NSIG) + save = sighandler[sig].old; if (act) { newact = *act; @@ -154,22 +157,24 @@ printf(__FUNCTION__": pthreads wrapper!\n"); newact.sa_handler = (__sighandler_t) pthread_sighandler; } newactp = &newact; + if (sig > 0 && sig < NSIG) + sighandler[sig].old = (arch_sighandler_t) act->sa_handler; } else newactp = NULL; if (__libc_sigaction(sig, newactp, oact) == -1) - return -1; + { + if (act && sig > 0 && sig < NSIG) + sighandler[sig].old = save; + return -1; + } #ifdef DEBUG_PT printf(__FUNCTION__": sighandler installed, sigaction successful\n"); #endif if (sig > 0 && sig < NSIG) { if (oact != NULL) - oact->sa_handler = (__sighandler_t) sighandler[sig].old; - if (act) - /* For the assignment is does not matter whether it's a normal - or real-time signal. */ - sighandler[sig].old = (arch_sighandler_t) act->sa_handler; + oact->sa_handler = save; } return 0; } |