Add manpage for pgfind(9).

PR:		docs/29552
Submitted by:	Evan Sarmiento <kaworu@sektor7.ath.cx>

1 files changed, 57 insertions, 0 deletions

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+.\" Copyright (c) 2001 Evan Sarmiento.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd August 8, 2001
+.Os
+.Dt PGFIND 9
+.Sh NAME
+.Nm pgfind
+.Nd "locate a process group by number"
+.Sh SYNOPSIS
+.In sys/proc.h
+.Ft "struct pgrp *"
+.Fn pgfind "pid_t pgid"
+.Sh DESCRIPTION
+The
+.Fn pgfind
+function takes a
+.Fa pgid
+as its argument and returns a pointer to the
+.Vt pgrp
+structure whose
+.Va pg_id
+is specified in the argument.
+.Sh RETURN VALUES
+The
+.Fn pgfind
+function returns
+.Dv NULL
+on failure or a pointer to a
+.Vt pgrp
+structure on successful completion.
+.Sh AUTHORS
+This man page was written by
+.An Evan Sarmiento Aq kaworu@sektor7.ath.cx .