|File: [cvs.NetBSD.org] / src / lib / libc / compat-43 / sigblock.3 (download)
Revision 1.6, Mon May 12 07:41:29 1997 UTC (23 years, 2 months ago) by mikel
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 1.5: +4 -4
xref sigsetmask(3) not sigsetmask(2), and RCSid police.
.\" Copyright (c) 1983, 1991 The Regents of the University of California.
.\" All rights reserved.
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.\" modification, are permitted provided that the following conditions
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.\" notice, this list of conditions and the following disclaimer in the
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.\" must display the following acknowledgement:
.\" This product includes software developed by the University of
.\" California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" from: @(#)sigblock.2 6.7 (Berkeley) 3/10/91
.\" $NetBSD: sigblock.3,v 1.6 1997/05/12 07:41:29 mikel Exp $
.Dd March 10, 1991
.Dt SIGBLOCK 3
.Os BSD 4.2
.Nd block signals
.Fd #include <signal.h>
.Fn sigblock "int mask"
.Fn sigmask signum
This interface is made obsolete by:
.Xr sigprocmask 2 .
adds the signals specified in
to the set of signals currently
being blocked from delivery.
Signals are blocked if the
corresponding bit in
is a 1; the macro
is provided to construct the mask for a given
.Fa signum .
It is not possible to block
.Dv SIGSTOP ;
this restriction is silently
imposed by the system.
.Sh RETURN VALUES
The previous set of masked signals is returned.
.Sh SEE ALSO
.Xr kill 2 ,
.Xr sigaction 2 ,
.Xr sigprocmask 2 ,
.Xr sigsetmask 3 ,
.Xr sigsetops 3
function call appeared in
and has been deprecated.