BSD 4_3_Net_2 release

[unix-history] / usr / src / lib / libc / sys / getpgrp.2

diff --git a/usr/src/lib/libc/sys/getpgrp.2 b/usr/src/lib/libc/sys/getpgrp.2
index 9968a8a..fe04ee2 100644 (file)
--- a/usr/src/lib/libc/sys/getpgrp.2
+++ b/usr/src/lib/libc/sys/getpgrp.2
@@ -1,42 +1,77 @@
-.\" Copyright (c) 1983 Regents of the University of California.
-.\" All rights reserved.  The Berkeley software License Agreement
-.\" specifies the terms and conditions for redistribution.
+.\" Copyright (c) 1983, 1991 Regents of the University of California.
+.\" All rights reserved.

 .\"
 .\"

-.\"    @(#)getpgrp.2   6.3 (Berkeley) 8/26/85
+.\" 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.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"    This product includes software developed by the University of
+.\"    California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.

 .\"
 .\"

-.TH GETPGRP 2 "August 26, 1985"
-.UC 5
-.SH NAME
-getpgrp \- get process group
-.SH SYNOPSIS
-.ft B
-.nf
-pgrp = getpgrp(pid)
-int pgrp;
-int pid;
-.fi
-.ft R
-.SH DESCRIPTION
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+.\"
+.\"     @(#)getpgrp.2  6.4 (Berkeley) 3/10/91
+.\"
+.Dd March 10, 1991
+.Dt GETPGRP 2
+.Os BSD 4.2
+.Sh NAME
+.Nm getpgrp
+.Nd get process group
+.Sh SYNOPSIS
+.Ft pid_t
+.Fn getpgrp "int pid"
+.Sh DESCRIPTION

 The process group of the specified process is returned by
 The process group of the specified process is returned by

-.I getpgrp.
+.Fn getpgrp .

 If
 If

-.I pid
-is zero, then the call applies to the current process.
-.PP
+.Fa pid
+is zero, the call applies to the current process.
+.Pp

 Process groups are used for distribution of signals, and
 by terminals to arbitrate requests for their input: processes
 that have the same process group as the terminal are foreground
 and may read, while others will block with a signal if they attempt
 to read.
 Process groups are used for distribution of signals, and
 by terminals to arbitrate requests for their input: processes
 that have the same process group as the terminal are foreground
 and may read, while others will block with a signal if they attempt
 to read.

-.PP
+.Pp

 This call is thus used by programs such as
 This call is thus used by programs such as

-.IR csh (1)
+.Xr csh 1

 to create
 process groups
 in implementing job control.
 to create
 process groups
 in implementing job control.

-The TIOCGPGRP and TIOCSPGRP calls
+The
+.Dv TIOCGPGRP
+and
+.Dv TIOCSPGRP
+calls

 described in
 described in

-.IR tty (4)
+.Xr termios 4

 are used to get/set the process group of the control terminal.
 are used to get/set the process group of the control terminal.

-.SH "SEE ALSO"
-setpgrp(2), getuid(2), tty(4)
+.Sh SEE ALSO
+.Xr setpgrp 2 ,
+.Xr getuid 2 ,
+.Xr termios 4
+.Sh HISTORY
+The
+.Nm
+function call appeared in
+.Bx 4.0 .