grupd.c revision 284118 
1/*-
2 * Copyright (C) 1996
3 *	David L. Nugent.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#ifndef lint
28static const char rcsid[] =
29  "$FreeBSD: head/usr.sbin/pw/grupd.c 284118 2015-06-07 14:34:38Z bapt $";
30#endif /* not lint */
31
32#include <grp.h>
33#include <libutil.h>
34#include <err.h>
35#include <stdio.h>
36#include <stdlib.h>
37#include <string.h>
38#include <sys/param.h>
39
40#include "pwupd.h"
41
42char *
43getgrpath(const char * file)
44{
45	static char pathbuf[MAXPATHLEN];
46
47	snprintf(pathbuf, sizeof pathbuf, "%s/%s", conf.etcpath, file);
48
49	return (pathbuf);
50}
51
52static int
53gr_update(struct group * grp, char const * group)
54{
55	int pfd, tfd;
56	struct group *gr = NULL;
57	struct group *old_gr = NULL;
58
59	if (grp != NULL)
60		gr = gr_dup(grp);
61
62	if (group != NULL)
63		old_gr = GETGRNAM(group);
64
65	if (gr_init(conf.etcpath, NULL))
66		err(1, "gr_init()");
67
68	if ((pfd = gr_lock()) == -1) {
69		gr_fini();
70		err(1, "gr_lock()");
71	}
72	if ((tfd = gr_tmp(-1)) == -1) {
73		gr_fini();
74		err(1, "gr_tmp()");
75	}
76	if (gr_copy(pfd, tfd, gr, old_gr) == -1) {
77		gr_fini();
78		err(1, "gr_copy()");
79	}
80	if (gr_mkdb() == -1) {
81		gr_fini();
82		err(1, "gr_mkdb()");
83	}
84	free(gr);
85	gr_fini();
86	return 0;
87}
88
89
90int
91addgrent(struct group * grp)
92{
93	return gr_update(grp, NULL);
94}
95
96int
97chggrent(char const * login, struct group * grp)
98{
99	return gr_update(grp, login);
100}
101
102int
103delgrent(struct group * grp)
104{
105
106	return (gr_update(NULL, grp->gr_name));
107}
108