xref: /onnv-gate/usr/src/lib/libbc/libc/sys/sys5/getgroups.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 1990 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate /*
28*0Sstevel@tonic-gate  * POSIX.1 compatible getgroups() routine
29*0Sstevel@tonic-gate  * This is needed while gid_t is not the same size as int (or whatever the
30*0Sstevel@tonic-gate  * syscall is using at the time).
31*0Sstevel@tonic-gate  */
32*0Sstevel@tonic-gate 
33*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
34*0Sstevel@tonic-gate 
35*0Sstevel@tonic-gate #include <sys/types.h>
36*0Sstevel@tonic-gate #include <sys/param.h>
37*0Sstevel@tonic-gate #include <sys/syscall.h>
38*0Sstevel@tonic-gate 
39*0Sstevel@tonic-gate getgroups(gidsetsize, grouplist)
40*0Sstevel@tonic-gate int	gidsetsize;
41*0Sstevel@tonic-gate gid_t	grouplist[];
42*0Sstevel@tonic-gate {
43*0Sstevel@tonic-gate 	int	glist[NGROUPS];	/* getgroups() syscall returns ints */
44*0Sstevel@tonic-gate 	register int	i;	/* loop control */
45*0Sstevel@tonic-gate 	register int	rc;	/* return code hold area */
46*0Sstevel@tonic-gate 
47*0Sstevel@tonic-gate 	rc = _syscall(SYS_getgroups, gidsetsize, glist);
48*0Sstevel@tonic-gate 	if (rc > 0 && gidsetsize != 0)
49*0Sstevel@tonic-gate 		for (i = 0; i < rc; i++)
50*0Sstevel@tonic-gate 			grouplist[i] = (gid_t)glist[i];
51*0Sstevel@tonic-gate 	return (rc);
52*0Sstevel@tonic-gate }
53