1.\" Copyright (c) 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" Berkeley Software Design, Inc. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 3. All advertising materials mentioning features or use of this software 16.\" must display the following acknowledgement: 17.\" This product includes software developed by the University of 18.\" California, Berkeley and its contributors. 19.\" 4. Neither the name of the University nor the names of its contributors 20.\" may be used to endorse or promote products derived from this software 21.\" without specific prior written permission. 22.\" 23.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33.\" SUCH DAMAGE. 34.\" 35.\" @(#)sigpending.2 8.3 (Berkeley) 1/12/94 36.\" $FreeBSD: src/lib/libc/sys/sigpending.2,v 1.5.2.5 2001/12/14 18:34:01 ru Exp $ 37.\" $DragonFly: src/lib/libc/sys/sigpending.2,v 1.2 2003/06/17 04:26:47 dillon Exp $ 38.\" 39.Dd January 12, 1994 40.Dt SIGPENDING 2 41.Os 42.Sh NAME 43.Nm sigpending 44.Nd get pending signals 45.Sh LIBRARY 46.Lb libc 47.Sh SYNOPSIS 48.In signal.h 49.Ft int 50.Fn sigpending "sigset_t *set" 51.Sh DESCRIPTION 52The 53.Fn sigpending 54function returns a mask of the signals pending for delivery 55to the calling process in the location indicated by 56.Fa set . 57Signals may be pending because they are currently masked, 58or transiently before delivery (although the latter case is not 59normally detectable). 60.Sh RETURN VALUES 61.Rv -std sigpending 62.Sh ERRORS 63.Fn sigpending 64will fail if: 65.Bl -tag -width Er 66.It Bq Er EFAULT 67The 68.Fa set 69argument specified an invalid address. 70.El 71.Sh SEE ALSO 72.Xr sigaction 2 , 73.Xr sigprocmask 2 74.Sh STANDARDS 75The 76.Fn sigpending 77function call is expected to conform to 78.St -p1003.1-90 . 79