freebsd-dev/usr.sbin/vipw/vipw.c

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/*
* Copyright (c) 1987, 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 2002 Networks Associates Technology, Inc.
* All rights reserved.
*
* Portions of this software were developed for the FreeBSD Project by
* ThinkSec AS and NAI Labs, the Security Research Division of Network
* Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
* ("CBOSS"), as part of the DARPA CHATS research program.
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*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if 0
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1987, 1993, 1994\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)vipw.c 8.3 (Berkeley) 4/2/94";
#endif /* not lint */
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
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#include <sys/types.h>
#include <sys/stat.h>
#include <err.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <libutil.h> /* must be after pwd.h */
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static void usage(void);
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int
main(int argc, char *argv[])
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{
const char *passwd_dir = NULL;
int ch, pfd, tfd;
char *line;
size_t len;
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while ((ch = getopt(argc, argv, "d:")) != -1)
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switch (ch) {
case 'd':
passwd_dir = optarg;
break;
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case '?':
default:
usage();
}
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argc -= optind;
argv += optind;
if (argc != 0)
usage();
if (pw_init(passwd_dir, NULL) == -1)
err(1, "pw_init()");
if ((pfd = pw_lock()) == -1) {
pw_fini();
err(1, "pw_lock()");
}
if ((tfd = pw_tmp(pfd)) == -1) {
pw_fini();
err(1, "pw_tmp()");
}
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(void)close(tfd);
/* Force umask for partial writes made in the edit phase */
(void)umask(077);
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for (;;) {
switch (pw_edit(0)) {
case -1:
pw_fini();
err(1, "pw_edit()");
case 0:
pw_fini();
errx(0, "no changes made");
default:
break;
}
if (pw_mkdb(NULL) == 0) {
pw_fini();
errx(0, "password list updated");
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}
printf("re-edit the password file? ");
fflush(stdout);
if ((line = fgetln(stdin, &len)) == NULL) {
pw_fini();
err(1, "fgetln()");
}
if (len > 0 && (*line == 'N' || *line == 'n'))
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break;
}
pw_fini();
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exit(0);
}
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static void
usage(void)
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{
(void)fprintf(stderr, "usage: vipw [-d directory]\n");
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exit(1);
}