fbc400a67a
track.
The $Id$ line is normally at the bottom of the main comment block in the
man page, separated from the rest of the manpage by an empty comment,
like so;
.\" $Id$
.\"
If the immediately preceding comment is a @(#) format ID marker than the
the $Id$ will line up underneath it with no intervening blank lines.
Otherwise, an additional blank line is inserted.
Approved by: bde
84 lines
2.9 KiB
Groff
84 lines
2.9 KiB
Groff
.\" Copyright (c) 1983, 1991, 1993
|
|
.\" The Regents of the University of California. 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.
|
|
.\" 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.
|
|
.\"
|
|
.\" 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.
|
|
.\"
|
|
.\" @(#)getgid.2 8.1 (Berkeley) 6/4/93
|
|
.\" $Id$
|
|
.\"
|
|
.Dd June 4, 1993
|
|
.Dt GETGID 2
|
|
.Os BSD 4.2
|
|
.Sh NAME
|
|
.Nm getgid ,
|
|
.Nm getegid
|
|
.Nd get group process identification
|
|
.Sh SYNOPSIS
|
|
.Fd #include <sys/types.h>
|
|
.Fd #include <unistd.h>
|
|
.Ft gid_t
|
|
.Fn getgid void
|
|
.Ft gid_t
|
|
.Fn getegid void
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn getgid
|
|
function returns the real group ID of the calling process,
|
|
.Fn getegid
|
|
returns the effective group ID of the calling process.
|
|
.Pp
|
|
The real group ID is specified at login time.
|
|
.Pp
|
|
The real group ID is the group of the user who invoked the program.
|
|
As the effective group ID gives the process additional permissions
|
|
during the execution of
|
|
.Dq Em set-group-ID
|
|
mode processes,
|
|
.Fn getgid
|
|
is used to determine the real-user-id of the calling process.
|
|
.Sh ERRORS
|
|
The
|
|
.Fn getgid
|
|
and
|
|
.Fn getegid
|
|
functions are always successful, and no return value is reserved to
|
|
indicate an error.
|
|
.Sh SEE ALSO
|
|
.Xr getuid 2 ,
|
|
.Xr issetugid 2 ,
|
|
.Xr setgid 2 ,
|
|
.Xr setregid 2
|
|
.Sh STANDARDS
|
|
The
|
|
.Fn getgid
|
|
and
|
|
.Fn getegid
|
|
function calls are expected to conform to
|
|
.St -p1003.1-90 .
|