/*
* Copyright (c) 1988, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* 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.
*/
#ifndef lint
static const char copyright[] =
"@(#) Copyright (c) 1988, 1993, 1994\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)passwd.c 8.3 (Berkeley) 4/2/94";
#endif
static const char rcsid[] =
"$FreeBSD$";
#endif /* not lint */
#include <sys/types.h>
#include <err.h>
#include <errno.h>
#include <libutil.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#ifdef YP
#include <pwd.h>
#include <pw_yp.h>
#include <rpcsvc/yp.h>
int __use_yp = 0;
int yp_errno = YP_TRUE;
extern int yp_passwd( char * );
#endif
#ifdef KERBEROS
#include "krb.h"
#endif
#include "extern.h"
static void usage(void);
int use_local_passwd = 0;
int
main(argc, argv)
int argc;
char **argv;
{
int ch;
char *uname;
#ifdef KERBEROS
char *iflag = 0, *rflag = 0, *uflag = 0;
char *k;
#endif
#ifdef YP
#ifdef KERBEROS
char realm[REALM_SZ];
#define OPTIONS "d:h:lysfoi:r:u:"
#else
#define OPTIONS "d:h:lysfo"
#endif
#else
#ifdef KERBEROS
char realm[REALM_SZ];
#define OPTIONS "li:r:u:"
#else
#define OPTIONS "l"
#endif
#endif
#ifdef YP
int res = 0;
if (strstr(argv[0], "yppasswd")) __use_yp = 1;
#endif
while ((ch = getopt(argc, argv, OPTIONS)) != -1) {
switch (ch) {
case 'l': /* change local password file */
use_local_passwd = 1;
break;
#ifdef KERBEROS
case 'i':
iflag = optarg;
break;
case 'r':
rflag = optarg;
break;
case 'u':
uflag = optarg;
break;
#endif /* KERBEROS */
#ifdef YP
case 'y': /* Change NIS password */
__use_yp = 1;
break;
case 'd': /* Specify NIS domain. */
#ifdef PARANOID
if (!getuid()) {
#endif
yp_domain = optarg;
if (yp_server == NULL)
yp_server = "localhost";
#ifdef PARANOID
} else {
warnx("only the super-user may use the -d flag");
}
#endif
break;
case 'h': /* Specify NIS server. */
#ifdef PARANOID
if (!getuid()) {
#endif
yp_server = optarg;
#ifdef PARANOID
} else {
warnx("only the super-user may use the -h flag");
}
#endif
break;
case 'o':
force_old++;
break;
#endif
default:
case '?':
usage();
}
}
argc -= optind;
argv += optind;
if ((uname = getlogin()) == NULL)
err(1, "getlogin");
switch(argc) {
case 0:
break;
case 1:
uname = argv[0];
break;
default:
usage();
}
#ifdef YP
/*
* If NIS is turned on in the password database, use it, else punt.
*/
#ifdef KERBEROS
if (__use_yp || (iflag == NULL && rflag == NULL && uflag == NULL)) {
#endif
res = use_yp(uname, 0, 0);
if (res == USER_YP_ONLY) {
if (!use_local_passwd) {
exit(yp_passwd(uname));
} else {
/*
* Reject -l flag if NIS is turned on and the user
* doesn't exist in the local password database.
*/
errx(1, "unknown local user: %s", uname);
}
} else if (res == USER_LOCAL_ONLY) {
/*
* Reject -y flag if user only exists locally.
*/
if (__use_yp)
errx(1, "unknown NIS user: %s", uname);
} else if (res == USER_YP_AND_LOCAL) {
if (!use_local_passwd && (yp_in_pw_file || __use_yp))
exit(yp_passwd(uname));
}
#ifdef KERBEROS
}
#endif
#endif
if (!use_local_passwd) {
#ifdef KERBEROS
k = auth_getval("auth_list");
if (k && strstr(k, "kerberos"))
if(krb_get_lrealm(realm, 0) == KSUCCESS) {
setuid(getuid());
fprintf(stderr, "realm %s\n", realm);
exit(krb_passwd(argv[0], iflag, rflag, uflag));
}
#endif
}
exit(local_passwd(uname));
}
static void
usage()
{
#ifdef YP
#ifdef KERBEROS
fprintf(stderr, "%s\n%s\n",
"usage: passwd [-l] [-i instance] [-r realm] [-u fullname]",
" passwd [-l] [-y] [-o] [-d domain [-h host]] [user]");
#else
(void)fprintf(stderr,
"usage: passwd [-l] [-y] [-o] [-d domain [-h host]] [user]\n");
#endif
#else
#ifdef KERBEROS
fprintf(stderr,
"usage: passwd [-l] [-i instance] [-r realm] [-u fullname] [user]\n");
#else
(void)fprintf(stderr, "usage: passwd user\n");
#endif
#endif
exit(1);
}
