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