NAME

sigsetmask — set current signal mask

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <signal.h>

int
sigsetmask(int mask);

sigmask(signum);

DESCRIPTION

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 ALSO

kill(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 deprecated.