.\"	$NetBSD: sigpending.2,v 1.15 2008/10/24 15:40:21 wiz Exp $
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.\"	@(#)sigpending.2	8.3 (Berkeley) 1/12/94
.\"
.Dd October 24, 2008
.Dt SIGPENDING 2
.Os
.Sh NAME
.Nm sigpending
.Nd get pending signals
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In signal.h
.Ft int
.Fn sigpending "sigset_t *set"
.Sh DESCRIPTION
The
.Nm sigpending
function returns a mask of the signals pending for delivery
to the calling process in the location indicated by
.Fa set .
Signals may be pending because they are currently masked,
or they are in transition before delivery (although the latter case is not
normally detectable).
.Sh RETURN VALUES
A 0 value indicates that the call succeeded.
A \-1 return value indicates an error occurred and
.Va errno
is set to indicate the reason.
.Sh ERRORS
.Fn sigpending
will fail if:
.Bl -tag -width Er
.It Bq Er EFAULT
.Fa set
specifies an invalid address.
.El
.Sh SEE ALSO
.Xr sigaction 2 ,
.Xr sigprocmask 2 ,
.Xr signal 7
.Sh STANDARDS
The
.Nm sigpending
function conforms to
.St -p1003.1-90 .