SIGSETMASK(2) BSD System Calls Manual SIGSETMASK(2)

NAME
     ssiiggsseettmmaasskk - set current signal mask

LLIIBBRRAARRYY
     Standard C Library (libc, -lc)

SYNOPSIS
     ##iinncclluuddee <>

     int
     ssiiggsseettmmaasskk(int mask);

     ssiiggmmaasskk(signum);

DESCRIPTION
     TThhiiss iinntteerrffaaccee iiss mmaaddee oobbssoolleettee bbyy:: sigprocmask(2).

     SSiiggsseettmmaasskk() sets the current signal mask.  Signals are blocked from
     delivery if the corresponding bit in mask is a 1; the macro ssiiggmmaasskk() 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 ssiiggsseettmmaasskk() function call appeared in 4.2BSD and has been depre-
     cated.

BSD                              June 2, 1993                              BSD