1.\" $NetBSD: sigignore.3,v 1.3 2003/04/16 13:34:39 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.\" 3. All advertising materials mentioning features or use of this software 18.\" must display the following acknowledgement: 19.\" This product includes software developed by the NetBSD 20.\" Foundation, Inc. and its contributors. 21.\" 4. Neither the name of The NetBSD Foundation nor the names of its 22.\" contributors may be used to endorse or promote products derived 23.\" from this software without specific prior written permission. 24.\" 25.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35.\" POSSIBILITY OF SUCH DAMAGE. 36.\" 37.Dd January 16, 2003 38.Dt SIGIGNORE 3 39.Os 40.Sh NAME 41.Nm sigignore 42.Nd manipulate signal dispositions 43.Sh LIBRARY 44.Lb libc 45.Sh SYNOPSIS 46.In signal.h 47.Ft int 48.Fn sigignore "int sig" 49.Sh DESCRIPTION 50.Bf -symbolic 51This interface is made obsolete by 52.Xr sigaction 2 . 53.Ef 54.Pp 55The 56.Fn sigignore 57function sets the disposition of the signal 58.Fa sig 59to 60.Dv SIG_IGN . 61.Sh RETURN VALUES 62If successful, the 63.Fn sigignore 64function returns 0. 65Otherwise \-1 is returned and 66.Va errno 67is set to indicate the error. 68.Sh ERRORS 69The 70.Fn sigignore 71function will fail if: 72.Bl -tag -width Er 73.It Bq Er EINVAL 74The argument 75.Fa sig 76is not a valid signal number. 77.It Bq Er EINVAL 78An attempt is made to ignore a signal that cannot be ignored, 79such as 80.Dv SIGKILL 81or 82.Dv SIGSTOP . 83.El 84.Sh SEE ALSO 85.Xr sigaction 2 86.Sh STANDARDS 87The 88.Fn sigignore 89function conforms to 90.St -p1003.1-2001 . 91