1 /* $OpenBSD: login_chpass.c,v 1.22 2024/09/22 04:19:22 jsg Exp $ */ 2 3 /*- 4 * Copyright (c) 1995,1996 Berkeley Software Design, Inc. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Berkeley Software Design, 17 * Inc. 18 * 4. The name of Berkeley Software Design, Inc. may not be used to endorse 19 * or promote products derived from this software without specific prior 20 * written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN, INC. ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN, INC. BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * BSDI $From: login_chpass.c,v 1.3 1996/08/21 21:01:48 prb Exp $ 35 */ 36 37 #include <sys/resource.h> 38 39 #include <err.h> 40 #include <stdlib.h> 41 #include <string.h> 42 #include <syslog.h> 43 #include <unistd.h> 44 45 #define _PATH_LOGIN_LCHPASS "/usr/libexec/auth/login_lchpass" 46 47 void local_chpass(char **); 48 49 int 50 main(int argc, char *argv[]) 51 { 52 struct rlimit rl; 53 int c; 54 55 rl.rlim_cur = 0; 56 rl.rlim_max = 0; 57 (void)setrlimit(RLIMIT_CORE, &rl); 58 59 (void)setpriority(PRIO_PROCESS, 0, 0); 60 61 if (pledge("stdio exec", NULL) == -1) 62 err(1, "pledge"); 63 64 openlog("login", LOG_ODELAY, LOG_AUTH); 65 66 while ((c = getopt(argc, argv, "s:v:")) != -1) 67 switch (c) { 68 case 'v': 69 break; 70 case 's': /* service */ 71 if (strcmp(optarg, "login") != 0) { 72 syslog(LOG_ERR, "%s: invalid service", optarg); 73 exit(1); 74 } 75 break; 76 default: 77 syslog(LOG_ERR, "usage error"); 78 exit(1); 79 } 80 81 switch (argc - optind) { 82 case 2: 83 /* class is not used */ 84 case 1: 85 break; 86 default: 87 syslog(LOG_ERR, "usage error"); 88 exit(1); 89 } 90 91 local_chpass(argv); 92 /* NOTREACHED */ 93 exit(0); 94 } 95 96 void 97 local_chpass(char *argv[]) 98 { 99 100 /* login_lchpass doesn't check instance so don't bother restoring it */ 101 argv[0] = strrchr(_PATH_LOGIN_LCHPASS, '/') + 1; 102 execv(_PATH_LOGIN_LCHPASS, argv); 103 syslog(LOG_ERR, "%s: %m", _PATH_LOGIN_LCHPASS); 104 exit(1); 105 } 106