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File: [cvs.NetBSD.org] / src / lib / libc / compat-43 / sigsetmask.3 (download)

Revision 1.7, Mon May 12 07:37:37 1997 UTC (23 years, 1 month ago) by mikel
Branch: MAIN
CVS Tags: netbsd-1-3-base, netbsd-1-3-RELEASE, netbsd-1-3-PATCH003-CANDIDATE2, netbsd-1-3-PATCH003-CANDIDATE1, netbsd-1-3-PATCH003-CANDIDATE0, netbsd-1-3-PATCH003, netbsd-1-3-PATCH002, netbsd-1-3-PATCH001, netbsd-1-3-BETA, netbsd-1-3
Changes since 1.6: +6 -6 lines

xref sig{block,setmask}(3) not sig{block,setmask}(2), and RCSid police.

.\" Copyright (c) 1983, 1991 The Regents of the University of California.
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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 $
.\"
.Dd March 10, 1991
.Dt SIGSETMASK 3
.Os BSD 4.2
.Sh NAME
.Nm sigsetmask
.Nd set current signal mask
.Sh SYNOPSIS
.Fd #include <signal.h>
.Ft int
.Fn sigsetmask "int mask"
.Fn sigmask signum
.Sh DESCRIPTION
.Bf -symbolic
This interface is made obsolete by:
.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 ,
.Xr sigsuspend 2 ,
.Xr sigblock 3 ,
.Xr sigsetops 3 ,
.Xr sigvec 3
.Sh HISTORY
The
.Fn sigsetmask
function call appeared in
.Bx 4.2
and has been deprecated.