1/* 2 * Copyright (c) 1997, 1998, 1999 Kungliga Tekniska H��gskolan 3 * (Royal Institute of Technology, Stockholm, Sweden). 4 * 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 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * 3. Neither the name of the Institute nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#include "login_locl.h" 35 36RCSID("$Id$"); 37 38#ifdef HAVE_SHADOW_H 39 40#ifndef _PATH_CHPASS 41#define _PATH_CHPASS "/usr/bin/passwd" 42#endif 43 44static int 45change_passwd(const struct passwd *who) 46{ 47 int status; 48 pid_t pid; 49 50 switch (pid = fork()) { 51 case -1: 52 printf("fork /bin/passwd"); 53 exit(1); 54 case 0: 55 execlp(_PATH_CHPASS, "passwd", who->pw_name, (char *) 0); 56 exit(1); 57 default: 58 waitpid(pid, &status, 0); 59 return (status); 60 } 61} 62 63void 64check_shadow(const struct passwd *pw, const struct spwd *sp) 65{ 66 long today; 67 68 today = time(0)/(24L * 60 * 60); 69 70 if (sp == NULL) 71 return; 72 73 if (sp->sp_expire > 0) { 74 if (today >= sp->sp_expire) { 75 printf("Your account has expired.\n"); 76 sleep(1); 77 exit(0); 78 } else if (sp->sp_expire - today < 14) { 79 printf("Your account will expire in %d days.\n", 80 (int)(sp->sp_expire - today)); 81 } 82 } 83 84 if (sp->sp_max > 0) { 85 if (today >= (sp->sp_lstchg + sp->sp_max)) { 86 printf("Your password has expired. Choose a new one.\n"); 87 change_passwd(pw); 88 } else if (sp->sp_warn > 0 89 && (today > (sp->sp_lstchg + sp->sp_max - sp->sp_warn))) { 90 printf("Your password will expire in %d days.\n", 91 (int)(sp->sp_lstchg + sp->sp_max - today)); 92 } 93 } 94} 95#endif /* HAVE_SHADOW_H */ 96