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