passwd.c revision 1.13
1 /* $NetBSD: passwd.c,v 1.13 1998/07/11 15:55:48 mrg 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 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) 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 __RCSID("$NetBSD: passwd.c,v 1.13 1998/07/11 15:55:48 mrg 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 int use_kerberos; 66 int use_yp; 67 int yppwd; 68 int yflag; 69 70 extern char *__progname; /* from crt0.o */ 71 72 int main __P((int, char **)); 73 74 #ifdef YP 75 extern int _yp_check __P((char **)); /* buried deep inside libc */ 76 #endif 77 78 int 79 main(argc, argv) 80 int argc; 81 char **argv; 82 { 83 extern int optind; 84 int ch; 85 char *username; 86 #if defined(KERBEROS) || defined(KERBEROS5) 87 char *iflag = 0, *rflag = 0, *uflag = 0; 88 89 if (strcmp(__progname, "kpasswd") == 0) 90 use_kerberos = 1; 91 else 92 use_kerberos = krb_check(); 93 #endif 94 #ifdef YP 95 use_yp = _yp_check(NULL); 96 #endif 97 98 if (strcmp(__progname, "yppasswd") == 0) { 99 #ifdef YP 100 if (!use_yp) 101 errx(1, "YP not in use."); 102 use_kerberos = 0; 103 yppwd = 1; 104 #else 105 errx(1, "YP support not compiled in."); 106 #endif 107 } 108 109 while ((ch = getopt(argc, argv, "lkyi:r:u:")) != -1) 110 switch (ch) { 111 case 'l': /* change local password file */ 112 if (yppwd) 113 usage(); 114 use_kerberos = 0; 115 use_yp = 0; 116 break; 117 #ifdef KERBEROS 118 case 'i': 119 iflag = optarg; 120 break; 121 case 'r': 122 rflag = optarg; 123 break; 124 case 'u': 125 uflag = optarg; 126 break; 127 #endif 128 case 'k': /* change Kerberos password */ 129 #if defined(KERBEROS) || defined(KERBEROS5) 130 if (yppwd) 131 usage(); 132 use_kerberos = 1; 133 use_yp = 0; 134 break; 135 #endif 136 #ifndef KERBEROS 137 case 'i': 138 case 'r': 139 case 'u': 140 errx(1, "Kerberos4 support not compiled in."); 141 #endif 142 case 'y': /* change YP password */ 143 #ifdef YP 144 if (yppwd) 145 usage(); 146 if (!use_yp) 147 errx(1, "YP not in use."); 148 use_kerberos = 0; 149 yflag = 1; 150 break; 151 #else 152 errx(1, "YP support not compiled in."); 153 #endif 154 default: 155 usage(); 156 } 157 158 argc -= optind; 159 argv += optind; 160 161 username = getlogin(); 162 if (username == NULL) 163 errx(1, "who are you ??"); 164 165 switch(argc) { 166 case 0: 167 break; 168 case 1: 169 #ifdef KERBEROS5 170 if (use_kerberos && strcmp(argv[0], username)) { 171 errx(1, "%s\n\t%s\n%s\n", 172 "to change another user's Kerberos password, do", 173 "\"kinit <user>; passwd; kdestroy\";", 174 "to change a user's local passwd, use\ 175 \"passwd -l <user>\""); 176 } 177 #endif 178 username = argv[0]; 179 break; 180 default: 181 usage(); 182 exit(1); 183 } 184 185 #if defined(KERBEROS) || defined(KERBEROS5) 186 if (use_kerberos) 187 exit(kadm_passwd(username, iflag, rflag, uflag)); 188 #else 189 #ifdef KERBEROS5 190 if (use_kerberos) 191 exit(krb_passwd()); 192 #endif 193 #endif 194 #ifdef YP 195 if (use_yp) 196 exit(yp_passwd(username)); 197 #endif 198 exit(local_passwd(username)); 199 } 200 201 void 202 usage() 203 { 204 205 if (yppwd) 206 fprintf(stderr, "usage: %s user\n", __progname); 207 else 208 fprintf(stderr, "usage: %s [-l] [-k] [-y] [-i instance] [-r realm] [-u fullname] user\n", __progname); 209 exit(1); 210 } 211
Indexes created Thu Oct 23 22:10:10 GMT 2025