244 lines
5.6 KiB
C
244 lines
5.6 KiB
C
/*
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* Copyright (c) 1988, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $id$
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*
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*/
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1988, 1993, 1994\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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static const char sccsid[] = "From: @(#)passwd.c 8.3 (Berkeley) 4/2/94";
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static const char rcsid[] =
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"$Id: passwd.c,v 1.11 1997/02/22 19:56:35 peter Exp $";
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#endif /* not lint */
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#ifdef YP
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#include <pwd.h>
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#include <pw_yp.h>
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#include <rpcsvc/yp.h>
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int __use_yp = 0;
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int yp_errno = YP_TRUE;
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extern int yp_passwd __P(( char * ));
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#endif
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#ifdef KERBEROS
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#include "krb.h"
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#endif
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#include "extern.h"
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void usage __P((void));
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int use_local_passwd = 0;
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int
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main(argc, argv)
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int argc;
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char **argv;
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{
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int ch;
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char *uname;
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char *iflag = 0, *rflag = 0, *uflag = 0;
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#ifdef YP
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#ifdef KERBEROS
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char realm[REALM_SZ];
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#define OPTIONS "d:h:lysfoi:r:u:"
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#else
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#define OPTIONS "d:h:lysfo"
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#endif
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#else
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#ifdef KERBEROS
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char realm[REALM_SZ];
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#define OPTIONS "li:r:u:"
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#else
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#define OPTIONS "l"
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#endif
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#endif
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#ifdef YP
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int res = 0;
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if (strstr(argv[0], "yppasswd")) __use_yp = 1;
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#endif
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while ((ch = getopt(argc, argv, OPTIONS)) != -1) {
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switch (ch) {
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case 'l': /* change local password file */
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use_local_passwd = 1;
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break;
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#ifdef KERBEROS
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case 'i':
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iflag = optarg;
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break;
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case 'r':
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rflag = optarg;
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break;
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case 'u':
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uflag = optarg;
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break;
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#endif /* KERBEROS */
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#ifdef YP
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case 'y': /* Change NIS password */
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__use_yp = 1;
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break;
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case 'd': /* Specify NIS domain. */
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#ifdef PARANOID
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if (!getuid()) {
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#endif
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yp_domain = optarg;
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if (yp_server == NULL)
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yp_server = "localhost";
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#ifdef PARANOID
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} else {
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warnx("Only the super-user may use the -d flag.");
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}
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#endif
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break;
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case 'h': /* Specify NIS server. */
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#ifdef PARANOID
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if (!getuid()) {
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#endif
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yp_server = optarg;
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#ifdef PARANOID
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} else {
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warnx("Only the super-user may use the -h flag.");
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}
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#endif
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break;
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case 'o':
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force_old++;
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break;
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#endif
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default:
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case '?':
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usage();
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}
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}
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argc -= optind;
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argv += optind;
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if ((uname = getlogin()) == NULL)
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err(1, "getlogin");
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switch(argc) {
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case 0:
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break;
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case 1:
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uname = argv[0];
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break;
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default:
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usage();
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}
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#ifdef YP
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/*
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* If NIS is turned on in the password database, use it, else punt.
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*/
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#ifdef KERBEROS
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if (__use_yp || (iflag == NULL && rflag == NULL && uflag == NULL)) {
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#endif
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res = use_yp(uname, 0, 0);
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if (res == USER_YP_ONLY) {
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if (!use_local_passwd) {
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exit(yp_passwd(uname));
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} else {
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/*
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* Reject -l flag if NIS is turned on and the user
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* doesn't exist in the local password database.
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*/
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errx(1, "unknown local user: %s.", uname);
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}
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} else if (res == USER_LOCAL_ONLY) {
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/*
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* Reject -y flag if user only exists locally.
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*/
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if (__use_yp)
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errx(1, "unknown NIS user: %s.", uname);
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} else if (res == USER_YP_AND_LOCAL) {
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if (!use_local_passwd && (yp_in_pw_file || __use_yp))
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exit(yp_passwd(uname));
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}
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#ifdef KERBEROS
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}
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#endif
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#endif
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if (!use_local_passwd) {
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#ifdef KERBEROS
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if(krb_get_lrealm(realm, 0) == KSUCCESS) {
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fprintf(stderr, "realm %s\n", realm);
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exit(krb_passwd(argv[0], iflag, rflag, uflag));
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}
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#endif
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}
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exit(local_passwd(uname));
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}
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void
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usage()
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{
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#ifdef YP
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#ifdef KERBEROS
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fprintf(stderr,
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"usage: passwd [-l] [-i instance] [-r realm] [-u fullname]\n");
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fprintf(stderr,
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" [-l] [-y] [-o] [-d domain [-h host]] [user]\n");
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#else
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(void)fprintf(stderr, "usage: passwd [-l] [-y] [-o] [-d domain \
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[-h host]] [user] \n");
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#endif
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#else
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#ifdef KERBEROS
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fprintf(stderr,
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"usage: passwd [-l] [-i instance] [-r realm] [-u fullname] [user]\n");
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#else
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(void)fprintf(stderr, "usage: passwd user\n");
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#endif
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#endif
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exit(1);
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}
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