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.\"	@(#)sigpending.2	8.3 (Berkeley) 1/12/94
.\" $FreeBSD: release/9.1.0/lib/libc/sys/sigpending.2 165903 2007-01-09 00:28:16Z imp $
.\"
.Dd January 12, 1994
.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
.Fn sigpending
system call 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 transiently before delivery (although the latter case is not
normally detectable).
.Sh RETURN VALUES
.Rv -std sigpending
.Sh ERRORS
The
.Fn sigpending
system call
will fail if:
.Bl -tag -width Er
.It Bq Er EFAULT
The
.Fa set
argument specified an invalid address.
.El
.Sh SEE ALSO
.Xr sigaction 2 ,
.Xr sigprocmask 2 ,
.Xr sigsuspend 2 ,
.Xr sigsetops 3
.Sh STANDARDS
The
.Fn sigpending
system call is expected to conform to
.St -p1003.1-90 .