1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include <stdio.h>
28 #include <grp.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include "getent.h"
32
33
34 static int
putgrent(const struct group * grp,FILE * fp)35 putgrent(const struct group *grp, FILE *fp)
36 {
37 char **mem;
38 int rc = 0;
39
40 if (grp == NULL) {
41 return (1);
42 }
43
44 if (fprintf(fp, "%s:%s:%u:",
45 grp->gr_name != NULL ? grp->gr_name : "",
46 grp->gr_passwd != NULL ? grp->gr_passwd : "",
47 grp->gr_gid) == EOF)
48 rc = 1;
49
50 mem = grp ->gr_mem;
51
52 if (mem != NULL) {
53 if (*mem != NULL)
54 if (fputs(*mem++, fp) == EOF)
55 rc = 1;
56
57 while (*mem != NULL)
58 if (fprintf(fp, ",%s", *mem++) == EOF)
59 rc = 1;
60 }
61 if (putc('\n', fp) == EOF)
62 rc = 1;
63 return (rc);
64 }
65
66 int
dogetgr(const char ** list)67 dogetgr(const char **list)
68 {
69 struct group *grp;
70 int rc = EXC_SUCCESS;
71 char *ptr;
72 gid_t gid;
73
74 if (list == NULL || *list == NULL) {
75 while ((grp = getgrent()) != NULL)
76 (void) putgrent(grp, stdout);
77 } else {
78 for (; *list != NULL; list++) {
79 errno = 0;
80
81 /*
82 * Here we assume that the argument passed is
83 * a gid, if it can be completely transformed
84 * to a long integer. So we check for gid in
85 * the database and if we fail then we check
86 * for the group name.
87 * If the argument passed is not numeric, then
88 * we take it as the group name and proceed.
89 */
90 gid = strtoul(*list, &ptr, 10);
91 if (!(*ptr == '\0' && errno == 0) ||
92 ((grp = getgrgid(gid)) == NULL)) {
93 grp = getgrnam(*list);
94 }
95 if (grp == NULL)
96 rc = EXC_NAME_NOT_FOUND;
97 else
98 (void) putgrent(grp, stdout);
99 }
100 }
101
102 return (rc);
103 }
104