/* $OpenBSD: passwd.c,v 1.8 2000/05/19 02:14:31 ericj Exp $ */ /* * 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[] = "from: @(#)passwd.c 5.5 (Berkeley) 7/6/91";*/ static char rcsid[] = "$OpenBSD: passwd.c,v 1.8 2000/05/19 02:14:31 ericj Exp $"; #endif /* not lint */ #include #include #include #ifdef KERBEROS #include #endif /* * Note on configuration: * Generally one would not use both Kerberos and YP * to maintain passwords. * */ int use_kerberos; int use_yp; #ifdef YP int force_yp; #endif extern int local_passwd(char *); extern int yp_passwd(char *); extern int krb_passwd(int, char **); void usage(int value); int main(argc, argv) int argc; char **argv; { extern int optind; register int ch; char *username; int status = 0; #if defined(KERBEROS) || defined(KERBEROS5) extern char realm[]; if (krb_get_lrealm(realm,1) == KSUCCESS) use_kerberos = 1; #endif #ifdef YP use_yp = _yp_check(NULL); #endif /* Process args and options */ while ((ch = getopt(argc, argv, "lyk")) != -1) switch (ch) { case 'l': /* change local password file */ use_kerberos = 0; use_yp = 0; break; case 'k': /* change Kerberos password */ #if defined(KERBEROS) || defined(KERBEROS5) use_kerberos = 1; use_yp = 0; exit(krb_passwd(argc, argv)); break; #else fprintf(stderr, "passwd: Kerberos not compiled in\n"); exit(1); #endif case 'y': /* change YP password */ #ifdef YP if (!use_yp) { fprintf(stderr, "passwd: YP not in use.\n"); exit(1); } use_kerberos = 0; use_yp = 1; force_yp = 1; break; #else fprintf(stderr, "passwd: YP not compiled in\n"); exit(1); #endif default: usage(1); } argc -= optind; argv += optind; username = getlogin(); if (username == NULL) { fprintf(stderr, "passwd: who are you ??\n"); exit(1); } switch(argc) { case 0: break; case 1: #if defined(KERBEROS) || defined(KERBEROS5) if (use_kerberos && strcmp(argv[0], username)) { (void)fprintf(stderr, "passwd: %s\n\t%s\n%s\n", "to change another user's Kerberos password, do", "\"passwd -k -u \";", "to change a user's local passwd, use \"passwd -l \""); exit(1); } #endif username = argv[0]; break; default: usage(1); } #if defined(KERBEROS) || defined(KERBEROS5) if (use_kerberos) exit(krb_passwd(argc, argv)); #endif #ifdef YP if (force_yp || ((status = local_passwd(username)) && use_yp)) exit(yp_passwd(username)); exit(status); #endif exit(local_passwd(username)); } void usage(retval) int retval; { fprintf(stderr, "usage: passwd [-l] [-y] [-k [-n name] [-i instance] [-r realm] [-u username[.instance][@realm]] [user]\n"); exit(retval); }