/*
* Signal handling for most loops where we can be interrupted
* by user pressing ^C/^Break (generating SIGINT/SIGBREAK).
*/
int _sock_sig_setup (void)
{
#if (USE_SIGMASK)
static sigset_t old_mask, new_mask;
#endif
int i;
if (signal_depth > 0 ||
++signal_depth > 1)
return (0);
_sock_start_timer();
#if (USE_SIGMASK)
sigemptyset (&new_mask);
#endif
for (i = 0; i < DIM(sig_tab); i++)
{
int sig = sig_tab[i].sig_num;
sig_tab[i].caught = FALSE;
#if (USE_SIGMASK)
sigaddset (&new_mask, sig);
sigprocmask (SIG_SETMASK, &new_mask, &old_mask);
#else
sig_tab[i].old = signal (sig, sig_catch);
#endif
}
return (0);
}
int _sock_sig_setup (void)
{
volatile int sig;
if (signal_depth > 0)
return (0);
if (++signal_depth > 1)
return (0);
_sock_start_timer();
wat_brkmode = wathndlcbrk;
wathndlcbrk = 0;
watcbroke = 0;
sigalrm_caught = sigbrk_caught = 0;
sigint_caught = sigquit_caught = 0;
old_sigint = signal (SIGINT, sig_catch);
#if defined(SIGQUIT)
old_sigquit = signal (SIGQUIT, sig_catch);
#endif
#if defined(SIGBREAK)
old_sigbrk = signal (SIGBREAK, sig_catch);
#endif
#if defined(SIGPIPE)
old_sigpipe = signal (SIGPIPE, sig_catch);
#endif
#if defined(SIGALRM) && TRAP_SIGALRM
old_sigalrm = signal (SIGALRM, sig_catch);
block_sigalrm();
#endif
sig = setjmp (sig_jmp);
if (sig == 0)
return (0);
/* We'll get here only when sig_catch() calls longjmp()
*/
SOCK_DEBUGF ((NULL, ", interrupted by %s\n", sig_name(sig)));
_sock_sig_restore();
return (-1);
}
