1/*
2 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
7 * Reserved.  This file contains Original Code and/or Modifications of
8 * Original Code as defined in and that are subject to the Apple Public
9 * Source License Version 1.0 (the 'License').  You may not use this file
10 * except in compliance with the License.  Please obtain a copy of the
11 * License at http://www.apple.com/publicsource and read it before using
12 * this file.
13 *
14 * The Original Code and all software distributed under the License are
15 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
19 * License for the specific language governing rights and limitations
20 * under the License."
21 *
22 * @APPLE_LICENSE_HEADER_END@
23 */
24/*
25 * Copyright (c) 1987, 1993, 1994
26 *	The Regents of the University of California.  All rights reserved.
27 *
28 * Redistribution and use in source and binary forms, with or without
29 * modification, are permitted provided that the following conditions
30 * are met:
31 * 1. Redistributions of source code must retain the above copyright
32 *    notice, this list of conditions and the following disclaimer.
33 * 2. Redistributions in binary form must reproduce the above copyright
34 *    notice, this list of conditions and the following disclaimer in the
35 *    documentation and/or other materials provided with the distribution.
36 * 3. All advertising materials mentioning features or use of this software
37 *    must display the following acknowledgement:
38 *	This product includes software developed by the University of
39 *	California, Berkeley and its contributors.
40 * 4. Neither the name of the University nor the names of its contributors
41 *    may be used to endorse or promote products derived from this software
42 *    without specific prior written permission.
43 *
44 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
45 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
46 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
47 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
48 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
49 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
50 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
51 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
52 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
53 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
54 * SUCH DAMAGE.
55 */
56
57#include <sys/cdefs.h>
58#ifndef lint
59__unused static char copyright[] =
60"@(#) Copyright (c) 1987, 1993, 1994\n\
61	The Regents of the University of California.  All rights reserved.\n";
62#endif /* not lint */
63
64#ifndef lint
65__unused static char sccsid[] = "@(#)vipw.c	8.3 (Berkeley) 4/2/94";
66#endif /* not lint */
67
68#include <sys/types.h>
69#include <sys/stat.h>
70
71#include <err.h>
72#include <pwd.h>
73#include <stdio.h>
74#include <stdlib.h>
75#include <string.h>
76#include <unistd.h>
77
78#include "pw_util.h"
79
80char *tempname;
81
82void	copyfile __P((int, int));
83void	usage __P((void));
84
85int
86main(argc, argv)
87	int argc;
88	char *argv[];
89{
90	int pfd, tfd;
91	struct stat begin, end;
92	int ch;
93
94	while ((ch = getopt(argc, argv, "")) != EOF)
95		switch (ch) {
96		case '?':
97		default:
98			usage();
99		}
100
101	argc -= optind;
102	argv += optind;
103
104	if (argc != 0)
105		usage();
106
107	pw_init();
108	pfd = pw_lock();
109	tfd = pw_tmp();
110	copyfile(pfd, tfd);
111	(void)close(tfd);
112
113	for (;;) {
114		if (stat(tempname, &begin))
115			pw_error(tempname, 1, 1);
116		pw_edit(0);
117		if (stat(tempname, &end))
118			pw_error(tempname, 1, 1);
119		if (begin.st_mtime == end.st_mtime) {
120			warnx("no changes made");
121			pw_error((char *)NULL, 0, 0);
122		}
123		if (pw_mkdb())
124			break;
125		pw_prompt();
126	}
127	exit(0);
128}
129
130void
131copyfile(from, to)
132	int from, to;
133{
134	int nr, nw, off;
135	char buf[8*1024];
136
137	while ((nr = read(from, buf, sizeof(buf))) > 0)
138		for (off = 0; off < nr; nr -= nw, off += nw)
139			if ((nw = write(to, buf + off, nr)) < 0)
140				pw_error(tempname, 1, 1);
141	if (nr < 0)
142		pw_error(_PATH_MASTERPASSWD, 1, 1);
143}
144
145void
146usage()
147{
148
149	(void)fprintf(stderr, "usage: vipw\n");
150	exit(1);
151}
152