1 /* from OpenBSD: getgrouplist.c,v 1.12 2005/08/08 08:05:34 espie Exp */
3 * Copyright (c) 1991, 1993
4 * The Regents of the University of California. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of the University nor the names of its contributors
15 * may be used to endorse or promote products derived from this software
16 * without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 /* OPENBSD ORIGINAL: lib/libc/gen/getgrouplist.c */
35 #ifndef HAVE_GETGROUPLIST
40 #include <sys/types.h>
46 getgrouplist(const char *uname, gid_t agroup, gid_t *groups, int *grpcnt)
58 * install primary group
60 if (ngroups >= maxgroups) {
64 groups[ngroups++] = agroup;
67 * Scan the group file to find additional groups.
70 while ((grp = getgrent())) {
71 if (grp->gr_gid == agroup)
73 for (bail = 0, i = 0; bail == 0 && i < ngroups; i++)
74 if (groups[i] == grp->gr_gid)
78 for (i = 0; grp->gr_mem[i]; i++) {
79 if (!strcmp(grp->gr_mem[i], uname)) {
80 if (ngroups >= maxgroups) {
84 groups[ngroups++] = grp->gr_gid;
95 #endif /* HAVE_GETGROUPLIST */