SIGSETMASK(2)                        BSD                         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.

SEE ALSO
     kill(2), sigvec(2), sigblock(2), sigpause(2)

DIAGNOSTICS
     The previous set of masked signals is returned.