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 * @(#) Copyright (c) 1987, 1993, 1994 The Regents of the University of California. All rights reserved. 37 * @(#)vipw.c 8.3 (Berkeley) 4/2/94 38 * $FreeBSD: src/usr.sbin/vipw/vipw.c,v 1.16 2004/08/07 04:28:56 imp Exp $ 39 * $DragonFly: src/usr.sbin/vipw/vipw.c,v 1.5 2005/12/05 01:23:23 swildner Exp $ 40 */ 41 42 #include <sys/types.h> 43 #include <sys/stat.h> 44 45 #include <err.h> 46 #include <pwd.h> 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <string.h> 50 #include <unistd.h> 51 52 #include <libutil.h> /* must be after pwd.h */ 53 54 static void usage(void); 55 56 int 57 main(int argc, char *argv[]) 58 { 59 const char *passwd_dir = NULL; 60 int ch, pfd, tfd; 61 char *line; 62 size_t len; 63 64 while ((ch = getopt(argc, argv, "d:")) != -1) 65 switch (ch) { 66 case 'd': 67 passwd_dir = optarg; 68 break; 69 case '?': 70 default: 71 usage(); 72 } 73 74 argc -= optind; 75 argv += optind; 76 77 if (argc != 0) 78 usage(); 79 80 if (pw_init(passwd_dir, NULL) == -1) 81 err(1, "pw_init()"); 82 if ((pfd = pw_lock()) == -1) { 83 pw_fini(); 84 err(1, "pw_lock()"); 85 } 86 if ((tfd = pw_tmp(pfd)) == -1) { 87 pw_fini(); 88 err(1, "pw_tmp()"); 89 } 90 close(tfd); 91 /* Force umask for partial writes made in the edit phase */ 92 umask(077); 93 94 for (;;) { 95 switch (pw_edit(0)) { 96 case -1: 97 pw_fini(); 98 err(1, "pw_edit()"); 99 case 0: 100 pw_fini(); 101 errx(0, "no changes made"); 102 default: 103 break; 104 } 105 if (pw_mkdb(NULL) == 0) { 106 pw_fini(); 107 errx(0, "password list updated"); 108 } 109 printf("re-edit the password file? "); 110 fflush(stdout); 111 if ((line = fgetln(stdin, &len)) == NULL) { 112 pw_fini(); 113 err(1, "fgetln()"); 114 } 115 if (len > 0 && (*line == 'N' || *line == 'n')) 116 break; 117 } 118 pw_fini(); 119 exit(0); 120 } 121 122 static void 123 usage(void) 124 { 125 fprintf(stderr, "usage: vipw [ -d directory ]\n"); 126 exit(1); 127 } 128