[src/trunk]: src/lib/libc/sys bring in ERRORS from openbsd.

[yamt <yamt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/2e4ef7c99da8
branches:  trunk
changeset: 535159:2e4ef7c99da8
user:      yamt <yamt%NetBSD.org@localhost>
date:      Sun Aug 11 12:09:11 2002 +0000

description:
bring in ERRORS from openbsd.

diffstat:

 lib/libc/sys/getpgrp.2 |  18 ++++++++++++++++--
 1 files changed, 16 insertions(+), 2 deletions(-)

diffs (39 lines):

diff -r 795a7a47f0d1 -r 2e4ef7c99da8 lib/libc/sys/getpgrp.2
--- a/lib/libc/sys/getpgrp.2    Sun Aug 11 12:08:55 2002 +0000
+++ b/lib/libc/sys/getpgrp.2    Sun Aug 11 12:09:11 2002 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: getpgrp.2,v 1.17 2002/02/08 01:28:17 ross Exp $
+.\"    $NetBSD: getpgrp.2,v 1.18 2002/08/11 12:09:11 yamt Exp $
 .\"
 .\" Copyright (c) 1983, 1991, 1993
 .\"    The Regents of the University of California.  All rights reserved.
@@ -33,7 +33,7 @@
 .\"
 .\"     @(#)getpgrp.2  8.1 (Berkeley) 6/4/93
 .\"
-.Dd June 4, 1993
+.Dd August 11, 2002
 .Dt GETPGRP 2
 .Os
 .Sh NAME
@@ -73,6 +73,20 @@
 .Fn tcsetpgrp
 calls
 are used to get/set the process group of the control terminal.
+.Sh ERRORS
+.Fn getpgrp
+always succeeds, however
+.Fn getpgid
+will succeed unless:
+.Bl -tag -width Er
+.It Bq Er EPERM
+if the current process and the process
+.Fa pid
+are not in the same session.
+.It Bq Er ESRCH
+if there is no process with a process ID equal to
+.Fa pid .
+.El
 .Sh SEE ALSO
 .Xr setpgid 2 ,
 .Xr termios 4