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.\" 38.Dd January 12, 1994 39.Dt SIGPENDING 2 40.Os 41.Sh NAME 42.Nm sigpending 43.Nd get pending signals 44.Sh LIBRARY 45.Lb libc 46.Sh SYNOPSIS 47.In signal.h 48.Ft int 49.Fn sigpending "sigset_t *set" 50.Sh DESCRIPTION 51The 52.Fn sigpending 53function returns a mask of the signals pending for delivery 54to the calling process in the location indicated by 55.Fa set . 56Signals may be pending because they are currently masked, 57or transiently before delivery (although the latter case is not 58normally detectable). 59.Sh RETURN VALUES 60.Rv -std sigpending 61.Sh ERRORS 62.Fn sigpending 63will fail if: 64.Bl -tag -width Er 65.It Bq Er EFAULT 66The 67.Fa set 68argument specified an invalid address. 69.El 70.Sh SEE ALSO 71.Xr sigaction 2 , 72.Xr sigprocmask 2 73.Sh STANDARDS 74The 75.Fn sigpending 76function call is expected to conform to 77.St -p1003.1-90 . 78