86 lines
2.4 KiB
Groff
86 lines
2.4 KiB
Groff
|
.\" $NetBSD: sigignore.3,v 1.6 2010/04/30 06:48:20 wiz Exp $
|
||
|
|
.\"
|
||
|
|
.\" Copyright (c) 2003 The NetBSD Foundation, Inc.
|
||
|
|
.\" All rights reserved.
|
||
|
|
.\"
|
||
|
|
.\" This code is derived from software contributed to The NetBSD Foundation
|
||
|
|
.\" by Klaus Klein.
|
||
|
|
.\"
|
||
|
|
.\" Redistribution and use in source and binary forms, with or without
|
||
|
|
.\" modification, are permitted provided that the following conditions
|
||
|
|
.\" are met:
|
||
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
||
|
|
.\" notice, this list of conditions and the following disclaimer.
|
||
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
||
|
|
.\" documentation and/or other materials provided with the distribution.
|
||
|
|
.\"
|
||
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||
|
|
.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||
|
|
.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||
|
|
.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||
|
|
.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||
|
|
.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||
|
|
.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||
|
|
.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||
|
|
.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||
|
|
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||
|
|
.\" POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
.\"
|
||
|
|
.Dd April 30, 2010
|
||
|
|
.Dt SIGIGNORE 3
|
||
|
|
.Os
|
||
|
|
.Sh NAME
|
||
|
|
.Nm sigignore
|
||
|
|
.Nd manipulate signal dispositions
|
||
|
|
.Sh LIBRARY
|
||
|
|
.Lb libc
|
||
|
|
.Sh SYNOPSIS
|
||
|
|
.In signal.h
|
||
|
|
.Ft int
|
||
|
|
.Fn sigignore "int sig"
|
||
|
|
.Sh DESCRIPTION
|
||
|
|
.Bf -symbolic
|
||
|
|
This interface is made obsolete by
|
||
|
|
.Xr sigaction 2 .
|
||
|
|
.Ef
|
||
|
|
.Pp
|
||
|
|
The
|
||
|
|
.Fn sigignore
|
||
|
|
function sets the disposition of the signal
|
||
|
|
.Fa sig
|
||
|
|
to
|
||
|
|
.Dv SIG_IGN .
|
||
|
|
.Sh RETURN VALUES
|
||
|
|
If successful, the
|
||
|
|
.Fn sigignore
|
||
|
|
function returns 0.
|
||
|
|
Otherwise \-1 is returned and
|
||
|
|
.Va errno
|
||
|
|
is set to indicate the error.
|
||
|
|
.Sh ERRORS
|
||
|
|
The
|
||
|
|
.Fn sigignore
|
||
|
|
function will fail if:
|
||
|
|
.Bl -tag -width Er
|
||
|
|
.It Bq Er EINVAL
|
||
|
|
The argument
|
||
|
|
.Fa sig
|
||
|
|
is not a valid signal number;
|
||
|
|
or an attempt is made to ignore a signal that cannot be ignored,
|
||
|
|
such as
|
||
|
|
.Dv SIGKILL
|
||
|
|
or
|
||
|
|
.Dv SIGSTOP .
|
||
|
|
.El
|
||
|
|
.Sh SEE ALSO
|
||
|
|
.Xr sigaction 2
|
||
|
|
.Sh STANDARDS
|
||
|
|
The
|
||
|
|
.Fn sigignore
|
||
|
|
function conforms to
|
||
|
|
.St -p1003.1-2001 .
|
||
|
|
It was however marked as obsolete in the
|
||
|
|
.St -p1003.1-2008
|
||
|
|
revision of the standard.
|