17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate * with the License.
87c478bd9Sstevel@tonic-gate *
97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate * and limitations under the License.
137c478bd9Sstevel@tonic-gate *
147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate *
207c478bd9Sstevel@tonic-gate * CDDL HEADER END
217c478bd9Sstevel@tonic-gate */
227c478bd9Sstevel@tonic-gate /*
23*49335bdeSbasabi * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
247c478bd9Sstevel@tonic-gate * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate */
267c478bd9Sstevel@tonic-gate
277c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
287c478bd9Sstevel@tonic-gate /* All Rights Reserved */
297c478bd9Sstevel@tonic-gate
307c478bd9Sstevel@tonic-gate /*
317c478bd9Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988
327c478bd9Sstevel@tonic-gate * The Regents of the University of California
337c478bd9Sstevel@tonic-gate * All Rights Reserved
347c478bd9Sstevel@tonic-gate *
357c478bd9Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from
367c478bd9Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its
377c478bd9Sstevel@tonic-gate * contributors.
387c478bd9Sstevel@tonic-gate */
397c478bd9Sstevel@tonic-gate
407c478bd9Sstevel@tonic-gate /*
417c478bd9Sstevel@tonic-gate * groups - show group memberships
427c478bd9Sstevel@tonic-gate */
437c478bd9Sstevel@tonic-gate /* LINTLIBRARY PROTOLIB1 */
447c478bd9Sstevel@tonic-gate
457c478bd9Sstevel@tonic-gate #include <grp.h>
467c478bd9Sstevel@tonic-gate #include <pwd.h>
477c478bd9Sstevel@tonic-gate #include <stdio.h>
487c478bd9Sstevel@tonic-gate #include <unistd.h>
497c478bd9Sstevel@tonic-gate #include <stdlib.h>
507c478bd9Sstevel@tonic-gate
517c478bd9Sstevel@tonic-gate extern struct group *getgrgid();
527c478bd9Sstevel@tonic-gate extern struct passwd *getpwnam();
537c478bd9Sstevel@tonic-gate extern int _getgroupsbymember(const char *, gid_t[], int, int);
547c478bd9Sstevel@tonic-gate
557c478bd9Sstevel@tonic-gate static void showgroups();
567c478bd9Sstevel@tonic-gate
577c478bd9Sstevel@tonic-gate static int ngroups_max;
587c478bd9Sstevel@tonic-gate
59*49335bdeSbasabi int
main(int argc,char * argv[])60*49335bdeSbasabi main(int argc, char *argv[])
617c478bd9Sstevel@tonic-gate {
62*49335bdeSbasabi int xval = 0;
63*49335bdeSbasabi struct passwd *pw;
647c478bd9Sstevel@tonic-gate
657c478bd9Sstevel@tonic-gate ngroups_max = sysconf(_SC_NGROUPS_MAX);
667c478bd9Sstevel@tonic-gate
677c478bd9Sstevel@tonic-gate if (ngroups_max < 0) {
687c478bd9Sstevel@tonic-gate (void) fprintf(stderr,
697c478bd9Sstevel@tonic-gate "groups: could not get configuration info\n");
707c478bd9Sstevel@tonic-gate exit(1);
717c478bd9Sstevel@tonic-gate }
727c478bd9Sstevel@tonic-gate
737c478bd9Sstevel@tonic-gate if (ngroups_max == 0)
747c478bd9Sstevel@tonic-gate exit(0);
757c478bd9Sstevel@tonic-gate
767c478bd9Sstevel@tonic-gate if (argc == 1) {
777c478bd9Sstevel@tonic-gate
787c478bd9Sstevel@tonic-gate if ((pw = getpwuid(getuid())) == NULL) {
797c478bd9Sstevel@tonic-gate (void) fprintf(stderr, "groups: No passwd entry\n");
807c478bd9Sstevel@tonic-gate xval = 1;
817c478bd9Sstevel@tonic-gate } else
827c478bd9Sstevel@tonic-gate showgroups(pw);
837c478bd9Sstevel@tonic-gate
847c478bd9Sstevel@tonic-gate } else while (*++argv) {
857c478bd9Sstevel@tonic-gate
867c478bd9Sstevel@tonic-gate if ((pw = getpwnam(*argv)) == NULL) {
877c478bd9Sstevel@tonic-gate (void) fprintf(stderr,
887c478bd9Sstevel@tonic-gate "groups: %s : No such user\n", *argv);
897c478bd9Sstevel@tonic-gate xval = 1;
907c478bd9Sstevel@tonic-gate } else {
917c478bd9Sstevel@tonic-gate if (argc > 2)
927c478bd9Sstevel@tonic-gate (void) printf("%s : ", *argv);
937c478bd9Sstevel@tonic-gate showgroups(pw);
947c478bd9Sstevel@tonic-gate }
957c478bd9Sstevel@tonic-gate }
967c478bd9Sstevel@tonic-gate
97*49335bdeSbasabi return (xval);
987c478bd9Sstevel@tonic-gate
997c478bd9Sstevel@tonic-gate }
1007c478bd9Sstevel@tonic-gate
1017c478bd9Sstevel@tonic-gate static void
showgroups(struct passwd * pw)102*49335bdeSbasabi showgroups(struct passwd *pw)
1037c478bd9Sstevel@tonic-gate {
104*49335bdeSbasabi struct group *gr;
1057c478bd9Sstevel@tonic-gate static gid_t *groups = NULL;
1067c478bd9Sstevel@tonic-gate int ngroups;
1077c478bd9Sstevel@tonic-gate int i;
1087c478bd9Sstevel@tonic-gate
1097c478bd9Sstevel@tonic-gate if (groups == NULL) {
1107c478bd9Sstevel@tonic-gate if ((groups = (gid_t *)calloc((uint_t)ngroups_max,
1117c478bd9Sstevel@tonic-gate sizeof (gid_t))) == 0) {
1127c478bd9Sstevel@tonic-gate (void) fprintf(stderr,
1137c478bd9Sstevel@tonic-gate "allocation of %d bytes failed\n",
1147c478bd9Sstevel@tonic-gate ngroups_max * sizeof (gid_t));
1157c478bd9Sstevel@tonic-gate exit(1);
1167c478bd9Sstevel@tonic-gate }
1177c478bd9Sstevel@tonic-gate }
1187c478bd9Sstevel@tonic-gate groups[0] = pw->pw_gid;
1197c478bd9Sstevel@tonic-gate
1207c478bd9Sstevel@tonic-gate ngroups = _getgroupsbymember(pw->pw_name, groups, ngroups_max, 1);
1217c478bd9Sstevel@tonic-gate
1227c478bd9Sstevel@tonic-gate if (gr = getgrgid(groups[0]))
1237c478bd9Sstevel@tonic-gate (void) printf("%s", gr->gr_name);
1247c478bd9Sstevel@tonic-gate else
1257c478bd9Sstevel@tonic-gate (void) printf("%d", (int)pw->pw_gid);
1267c478bd9Sstevel@tonic-gate
1277c478bd9Sstevel@tonic-gate for (i = 1; i < ngroups; i++) {
1287c478bd9Sstevel@tonic-gate if ((gr = getgrgid(groups[i])))
1297c478bd9Sstevel@tonic-gate (void) printf(" %s", gr->gr_name);
1307c478bd9Sstevel@tonic-gate else
1317c478bd9Sstevel@tonic-gate (void) printf(" %d", (int)groups[i]);
1327c478bd9Sstevel@tonic-gate }
1337c478bd9Sstevel@tonic-gate
1347c478bd9Sstevel@tonic-gate (void) printf("\n");
1357c478bd9Sstevel@tonic-gate }
136