SIGSETMASK(2) BSD System Calls Manual SIGSETMASK(2)NAME
sigsetmask — set current signal mask
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <signal.h>
int
sigsetmask(int mask);
sigmask(signum);
DESCRIPTION
This interface is made obsolete by: sigprocmask(2).
Sigsetmask() sets the current signal mask. Signals are blocked from
delivery 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 or SIGSTOP to be blocked.
RETURN VALUES
The previous set of masked signals is returned.
SEE ALSOkill(2), sigaction(2), sigblock(2), sigprocmask(2), sigsuspend(2),
sigvec(2), sigsetops(3)HISTORY
The sigsetmask() function call appeared in 4.2BSD and has been depre‐
cated.
BSD June 2, 1993 BSD