pw_nis.c revision 285092 
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: stable/10/usr.sbin/pw/pw_nis.c 285092 2015-07-03 14:22:44Z bapt $";
30#endif /* not lint */
31
32#include <sys/types.h>
33#include <err.h>
34#include <pwd.h>
35#include <libutil.h>
36
37#include "pw.h"
38
39static int
40pw_nisupdate(const char * path, struct passwd * pwd, char const * user)
41{
42	int pfd, tfd;
43	struct passwd *pw = NULL;
44	struct passwd *old_pw = NULL;
45
46	if (pwd != NULL)
47		pw = pw_dup(pwd);
48
49	if (user != NULL)
50		old_pw = GETPWNAM(user);
51
52	if (pw_init(NULL, path))
53		err(1,"pw_init()");
54	if ((pfd = pw_lock()) == -1) {
55		pw_fini();
56		err(1, "pw_lock()");
57	}
58	if ((tfd = pw_tmp(-1)) == -1) {
59		pw_fini();
60		err(1, "pw_tmp()");
61	}
62	if (pw_copy(pfd, tfd, pw, old_pw) == -1) {
63		pw_fini();
64		err(1, "pw_copy()");
65	}
66	if (chmod(pw_tempname(), 0644) == -1)
67		err(1, "chmod()");
68	if (rename(pw_tempname(), path) == -1)
69		err(1, "rename()");
70
71	free(pw);
72	pw_fini();
73
74	return (0);
75}
76
77int
78addnispwent(const char *path, struct passwd * pwd)
79{
80	return pw_nisupdate(path, pwd, NULL);
81}
82
83int
84chgnispwent(const char *path, char const * login, struct passwd * pwd)
85{
86	return pw_nisupdate(path, pwd, login);
87}
88
89int
90delnispwent(const char *path, const char *login)
91{
92	return pw_nisupdate(path, NULL, login);
93}
94