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

NAME
     sigsetmask — set current signal mask

SYNOPSIS
     #include <signal.h>

     int
     sigsetmask(int mask);

     sigmask(signum);

DESCRIPTION
     This interface is made obsoleted by: sigprocmask(2).

     Sigsetmask() sets the current signal mask Signals are blocked from deliv‐
     ery if the corresponding bit in mask is a 1; the macro sigmask() is pro‐
     vided 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
     sigprocmask(2), kill(2), sigaction(2), sigsuspend(2), sigvec(2),
     sigblock(2), sigsetops(3)

HISTORY
     The sigsetmask function call appeared in 4.2BSD and has been deprecated.

4.2 Berkeley Distribution	 June 2, 1993	     4.2 Berkeley Distribution

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