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, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 2003 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
27 /* All Rights Reserved */
28
29 #include <stdio.h>
30 #include <grp.h>
31 #include <unistd.h>
32
33 /*
34 * putgrent() function to write a group structure to a file
35 * supports the use of group names that with + or -
36 */
37 void
putgrent(struct group * grpstr,FILE * to)38 putgrent(struct group *grpstr, FILE *to)
39 {
40 char **memptr; /* member vector pointer */
41
42 if (grpstr->gr_name[0] == '+' || grpstr->gr_name[0] == '-') {
43 /*
44 * if the groupname starts with either a '+' or '-' then
45 * write out what we can as best as we can
46 * we assume that fgetgrent() set gr_gid to 0 so
47 * write a null entry instead of 0
48 * This should not break /etc/nsswitch.conf for any of
49 * "group: compat", "group: files", "group: nis"
50 *
51 */
52 (void) fprintf(to, "%s:%s:", grpstr->gr_name,
53 grpstr->gr_passwd != NULL ? grpstr->gr_passwd : "");
54
55 if (grpstr->gr_gid == 0) {
56 (void) fprintf(to, ":");
57 } else {
58 (void) fprintf(to, "%ld:", grpstr->gr_gid);
59 }
60
61 memptr = grpstr->gr_mem;
62
63 while (memptr != NULL && *memptr != NULL) {
64 (void) fprintf(to, "%s", *memptr);
65 memptr++;
66 if (memptr != NULL && *memptr != NULL)
67 (void) fprintf(to, ",");
68 }
69
70 (void) fprintf(to, "\n");
71 } else {
72 /*
73 * otherwise write out all the fields in the group structure
74 *
75 */
76 (void) fprintf(to, "%s:%s:%ld:", grpstr->gr_name,
77 grpstr->gr_passwd, grpstr->gr_gid);
78
79 memptr = grpstr->gr_mem;
80
81 while (*memptr != NULL) {
82 (void) fprintf(to, "%s", *memptr);
83 memptr++;
84 if (*memptr != NULL)
85 (void) fprintf(to, ",");
86 }
87
88 (void) fprintf(to, "\n");
89 }
90 }
91