NetBSD/lib/libc/compat-43/sigsetmask.3

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.\" Copyright (c) 1983, 1991 The Regents of the University of California.
.\" All rights reserved.
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.\" from: @(#)sigsetmask.2 6.7 (Berkeley) 3/10/91
.\" $NetBSD: sigsetmask.3,v 1.7 1997/05/12 07:37:37 mikel Exp $
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.\"
.Dd March 10, 1991
.Dt SIGSETMASK 3
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.Os BSD 4.2
.Sh NAME
.Nm sigsetmask
.Nd set current signal mask
.Sh SYNOPSIS
.Fd #include <signal.h>
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.Ft int
.Fn sigsetmask "int mask"
.Fn sigmask signum
.Sh DESCRIPTION
.Bf -symbolic
This interface is made obsolete by:
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.Ef
.Xr sigprocmask 2 .
.Pp
.Fn Sigsetmask
sets the current signal mask
Signals are blocked from delivery if the
corresponding bit in
.Fa mask
is a 1; the macro
.Fn sigmask
is provided to construct the mask for a given
.Fa signum .
.Pp
The system
quietly disallows
.Dv SIGKILL
or
.Dv SIGSTOP
to be blocked.
.Sh RETURN VALUES
The previous set of masked signals is returned.
.Sh SEE ALSO
.Xr kill 2 ,
.Xr sigaction 2 ,
.Xr sigprocmask 2 ,
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.Xr sigsuspend 2 ,
.Xr sigblock 3 ,
.Xr sigsetops 3 ,
.Xr sigvec 3
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.Sh HISTORY
The
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.Fn sigsetmask
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function call appeared in
.Bx 4.2
and has been deprecated.