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.
|
|
.\"
|
|
.\" @(#)initgroups.3 8.1 (Berkeley) 6/4/93
|
|
.\"
|
|
.Dd June 4, 1993
|
|
.Dt INITGROUPS 3
|
|
.Os BSD 4.2
|
|
.Sh NAME
|
|
.Nm initgroups
|
|
.Nd initialize group access list
|
|
.Sh SYNOPSIS
|
|
.Fd #include <unistd.h>
|
|
.Ft int
|
|
.Fn initgroups "const char *name" "int basegid"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn initgroups
|
|
function
|
|
uses the
|
|
.Xr getgrouplist 3
|
|
function to calculate the group access list for the user
|
|
specified in
|
|
.Fa name .
|
|
This group list is then setup for the current process using
|
|
.Xr setgroups 2 .
|
|
The
|
|
.Fa basegid
|
|
is automatically included in the groups list.
|
|
Typically this value is given as
|
|
the group number from the password file.
|
|
.Sh RETURN VALUES
|
|
The
|
|
.Fn initgroups
|
|
function
|
|
returns \-1 if it was not invoked by the super-user.
|
|
.Sh SEE ALSO
|
|
.Xr setgroups 2 ,
|
|
.Xr getgrouplist 3
|
|
.Sh HISTORY
|
|
The
|
|
.Fn initgorups
|
|
function appeared in
|
|
.Bx 4.2 .
|
|
.Sh BUGS
|
|
The
|
|
.Fn getgrouplist
|
|
function called by
|
|
.Fn initgorups
|
|
uses the routines based on
|
|
.Xr getgrent 3 .
|
|
If the invoking program uses any of these routines,
|
|
the group structure will
|
|
be overwritten in the call to
|
|
.Fn initgroups .
|