NetBSD/usr.bin/passwd/passwd.c

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1993-03-21 12:45:37 +03:00
/*
* Copyright (c) 1988 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
char copyright[] =
"@(#) Copyright (c) 1988 The Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)passwd.c 5.5 (Berkeley) 7/6/91";
#endif /* not lint */
#include <stdio.h>
#include <unistd.h>
#ifdef KERBEROS
int use_kerberos = 1;
#endif
main(argc, argv)
int argc;
char **argv;
{
extern int optind;
register int ch;
char *uname;
#ifdef KERBEROS
while ((ch = getopt(argc, argv, "l")) != EOF)
switch (ch) {
case 'l': /* change local password file */
use_kerberos = 0;
break;
#else
while ((ch = getopt(argc, argv, "")) != EOF)
switch (ch) {
#endif
default:
case '?':
usage();
exit(1);
}
argc -= optind;
argv += optind;
uname = getlogin();
switch(argc) {
case 0:
break;
case 1:
#ifdef KERBEROS
if (use_kerberos && strcmp(argv[1], uname)) {
(void)fprintf(stderr, "passwd: %s\n\t%s\n%s\n",
"to change another user's Kerberos password, do",
"\"kinit user; passwd; kdestroy\";",
"to change a user's local passwd, use \"passwd -l user\"");
exit(1);
}
#endif
uname = argv[0];
break;
default:
usage();
exit(1);
}
#ifdef KERBEROS
if (use_kerberos)
exit(krb_passwd());
#endif
exit(local_passwd(uname));
}
usage()
{
#ifdef KERBEROS
(void)fprintf(stderr, "usage: passwd [-l] user\n");
#else
(void)fprintf(stderr, "usage: passwd user\n");
#endif
}