passwd.c revision 1.11
1 /* $NetBSD: passwd.c,v 1.11 1997/01/07 04:08:18 tls Exp $ */ 2 3 /* 4 * Copyright (c) 1988, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef lint 37 static char copyright[] = 38 "@(#) Copyright (c) 1988, 1993, 1994\n\ 39 The Regents of the University of California. All rights reserved.\n"; 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "from: @(#)passwd.c 8.3 (Berkeley) 4/2/94"; 45 #else 46 static char rcsid[] = "$NetBSD: passwd.c,v 1.11 1997/01/07 04:08:18 tls Exp $"; 47 #endif 48 #endif /* not lint */ 49 50 #include <err.h> 51 #include <stdio.h> 52 #include <string.h> 53 #include <unistd.h> 54 55 #include "extern.h" 56 57 void usage __P((void)); 58 59 /* 60 * Note on configuration: 61 * Generally one would not use both Kerberos and YP 62 * to maintain passwords. 63 * 64 */ 65 66 int use_kerberos; 67 int use_yp; 68 int yppwd; 69 int yflag; 70 71 extern char *__progname; /* from crt0.o */ 72 73 #ifdef YP 74 extern int _yp_check __P((char **)); /* buried deep inside libc */ 75 #endif 76 77 main(argc, argv) 78 int argc; 79 char **argv; 80 { 81 extern int optind; 82 int ch; 83 char *username; 84 char *iflag = 0, *rflag = 0, *uflag = 0; 85 86 #if defined(KERBEROS) || defined(KERBEROS5) 87 if (strcmp(__progname, "kpasswd") == 0) 88 use_kerberos = 1; 89 else 90 use_kerberos = krb_check(); 91 #endif 92 #ifdef YP 93 use_yp = _yp_check(NULL); 94 #endif 95 96 if (strcmp(__progname, "yppasswd") == 0) { 97 #ifdef YP 98 if (!use_yp) 99 errx(1, "YP not in use."); 100 use_kerberos = 0; 101 yppwd = 1; 102 #else 103 errx(1, "YP support not compiled in."); 104 #endif 105 } 106 107 108 while ((ch = getopt(argc, argv, "lkyi:r:u:")) != -1) 109 switch (ch) { 110 case 'l': /* change local password file */ 111 if (yppwd) 112 usage(); 113 use_kerberos = 0; 114 use_yp = 0; 115 break; 116 #ifdef KERBEROS 117 case 'i': 118 iflag = optarg; 119 break; 120 case 'r': 121 rflag = optarg; 122 break; 123 case 'u': 124 uflag = optarg; 125 break; 126 #endif 127 case 'k': /* change Kerberos password */ 128 #if defined(KERBEROS) || defined(KERBEROS5) 129 if (yppwd) 130 usage(); 131 use_kerberos = 1; 132 use_yp = 0; 133 break; 134 #else 135 errx(1, "Kerberos support not compiled in."); 136 #endif 137 case 'y': /* change YP password */ 138 #ifdef YP 139 if (yppwd) 140 usage(); 141 if (!use_yp) 142 errx(1, "YP not in use."); 143 use_kerberos = 0; 144 yflag = 1; 145 break; 146 #else 147 errx(1, "YP support not compiled in."); 148 #endif 149 default: 150 usage(); 151 } 152 153 argc -= optind; 154 argv += optind; 155 156 username = getlogin(); 157 if (username == NULL) 158 errx(1, "who are you ??"); 159 160 switch(argc) { 161 case 0: 162 break; 163 case 1: 164 #ifdef KERBEROS5 165 if (use_kerberos && strcmp(argv[0], username)) { 166 errx(1, "%s\n\t%s\n%s\n", 167 "to change another user's Kerberos password, do", 168 "\"kinit <user>; passwd; kdestroy\";", 169 "to change a user's local passwd, use\ 170 \"passwd -l <user>\""); 171 } 172 #endif 173 username = argv[0]; 174 break; 175 default: 176 usage(); 177 exit(1); 178 } 179 180 #if defined(KERBEROS) || defined(KERBEROS5) 181 if (use_kerberos) 182 exit(kadm_passwd(username, iflag, rflag, uflag)); 183 #else 184 #ifdef KERBEROS5 185 if (use_kerberos) 186 exit(krb_passwd()); 187 #endif 188 #endif 189 #ifdef YP 190 if (use_yp) 191 exit(yp_passwd(username)); 192 #endif 193 exit(local_passwd(username)); 194 } 195 196 void 197 usage() 198 { 199 200 if (yppwd) 201 fprintf(stderr, "usage: %s user\n", __progname); 202 else 203 fprintf(stderr, "usage: %s [-l] [-k] [-y] [-i instance] [-r realm] [-u fullname] user\n", __progname); 204 exit(1); 205 } 206
Indexes created Tue Sep 30 11:09:46 GMT 2025