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