1 /* 2 * Copyright (c) 1987, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * Copyright (c) 2002 Networks Associates Technology, Inc. 5 * All rights reserved. 6 * 7 * Portions of this software were developed for the FreeBSD Project by 8 * ThinkSec AS and NAI Labs, the Security Research Division of Network 9 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 10 * ("CBOSS"), as part of the DARPA CHATS research program. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 */ 40 41 #if 0 42 #ifndef lint 43 static const char copyright[] = 44 "@(#) Copyright (c) 1987, 1993, 1994\n\ 45 The Regents of the University of California. All rights reserved.\n"; 46 #endif /* not lint */ 47 48 #ifndef lint 49 static char sccsid[] = "@(#)vipw.c 8.3 (Berkeley) 4/2/94"; 50 #endif /* not lint */ 51 #endif 52 #include <sys/cdefs.h> 53 __FBSDID("$FreeBSD$"); 54 55 #include <sys/types.h> 56 #include <sys/stat.h> 57 58 #include <err.h> 59 #include <pwd.h> 60 #include <stdio.h> 61 #include <stdlib.h> 62 #include <string.h> 63 #include <unistd.h> 64 65 #include <libutil.h> /* must be after pwd.h */ 66 67 static void usage(void); 68 69 int 70 main(int argc, char *argv[]) 71 { 72 const char *passwd_dir = NULL; 73 int ch, pfd, tfd; 74 char *line; 75 size_t len; 76 77 while ((ch = getopt(argc, argv, "d:")) != -1) 78 switch (ch) { 79 case 'd': 80 passwd_dir = optarg; 81 break; 82 case '?': 83 default: 84 usage(); 85 } 86 87 argc -= optind; 88 argv += optind; 89 90 if (argc != 0) 91 usage(); 92 93 if (pw_init(passwd_dir, NULL) == -1) 94 err(1, "pw_init()"); 95 if ((pfd = pw_lock()) == -1) { 96 pw_fini(); 97 err(1, "pw_lock()"); 98 } 99 if ((tfd = pw_tmp(pfd)) == -1) { 100 pw_fini(); 101 err(1, "pw_tmp()"); 102 } 103 (void)close(tfd); 104 /* Force umask for partial writes made in the edit phase */ 105 (void)umask(077); 106 107 for (;;) { 108 switch (pw_edit(0)) { 109 case -1: 110 pw_fini(); 111 err(1, "pw_edit()"); 112 case 0: 113 pw_fini(); 114 errx(0, "no changes made"); 115 default: 116 break; 117 } 118 if (pw_mkdb(NULL) == 0) { 119 pw_fini(); 120 errx(0, "password list updated"); 121 } 122 printf("re-edit the password file? "); 123 fflush(stdout); 124 if ((line = fgetln(stdin, &len)) == NULL) { 125 pw_fini(); 126 err(1, "fgetln()"); 127 } 128 if (len > 0 && (*line == 'N' || *line == 'n')) 129 break; 130 } 131 pw_fini(); 132 exit(0); 133 } 134 135 static void 136 usage(void) 137 { 138 139 (void)fprintf(stderr, "usage: vipw [-d directory]\n"); 140 exit(1); 141 } 142