1.\" $NetBSD: sigignore.3,v 1.6 2010/04/30 06:48:20 wiz Exp $ 2.\" 3.\" Copyright (c) 2003 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Klaus Klein. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28.\" POSSIBILITY OF SUCH DAMAGE. 29.\" 30.Dd April 30, 2010 31.Dt SIGIGNORE 3 32.Os 33.Sh NAME 34.Nm sigignore 35.Nd manipulate signal dispositions 36.Sh LIBRARY 37.Lb libc 38.Sh SYNOPSIS 39.In signal.h 40.Ft int 41.Fn sigignore "int sig" 42.Sh DESCRIPTION 43.Bf -symbolic 44This interface is made obsolete by 45.Xr sigaction 2 . 46.Ef 47.Pp 48The 49.Fn sigignore 50function sets the disposition of the signal 51.Fa sig 52to 53.Dv SIG_IGN . 54.Sh RETURN VALUES 55If successful, the 56.Fn sigignore 57function returns 0. 58Otherwise \-1 is returned and 59.Va errno 60is set to indicate the error. 61.Sh ERRORS 62The 63.Fn sigignore 64function will fail if: 65.Bl -tag -width Er 66.It Bq Er EINVAL 67The argument 68.Fa sig 69is not a valid signal number; 70or an attempt is made to ignore a signal that cannot be ignored, 71such as 72.Dv SIGKILL 73or 74.Dv SIGSTOP . 75.El 76.Sh SEE ALSO 77.Xr sigaction 2 78.Sh STANDARDS 79The 80.Fn sigignore 81function conforms to 82.St -p1003.1-2001 . 83It was however marked as obsolete in the 84.St -p1003.1-2008 85revision of the standard. 86