SIGSETMASK(2)SIGSETMASK(2)NAME
sigsetmask - set current signal mask
SYNOPSIS
#include <signal.h>
sigsetmask(mask);
int mask;
mask = sigmask(signum)DESCRIPTION
Sigsetmask sets the current signal mask (those signals that are blocked
from delivery). Signals are blocked if the corresponding bit in mask
is a 1; the macro sigmask is provided to construct the mask for a given
signum.
The system quietly disallows SIGKILL, SIGSTOP, or SIGCONT to be
blocked.
RETURN VALUE
The previous set of masked signals is returned.
SEE ALSOkill(2), sigvec(2), sigblock(2), sigpause(2)4.2 Berkeley Distribution May 14, 1986 SIGSETMASK(2)