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