1 /* 2 * Copyright (c) 2000 Markus Friedl. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25 #include "includes.h" 26 RCSID("$OpenBSD: auth2-passwd.c,v 1.5 2003/12/31 00:24:50 dtucker Exp $"); 27 28 #include "xmalloc.h" 29 #include "packet.h" 30 #include "log.h" 31 #include "auth.h" 32 #include "monitor_wrap.h" 33 #include "servconf.h" 34 35 /* import */ 36 extern ServerOptions options; 37 38 static int 39 userauth_passwd(Authctxt *authctxt) 40 { 41 char *password, *newpass; 42 int authenticated = 0; 43 int change; 44 u_int len, newlen; 45 46 change = packet_get_char(); 47 password = packet_get_string(&len); 48 if (change) { 49 /* discard new password from packet */ 50 newpass = packet_get_string(&newlen); 51 memset(newpass, 0, newlen); 52 xfree(newpass); 53 } 54 packet_check_eom(); 55 56 if (change) 57 logit("password change not supported"); 58 else if (PRIVSEP(auth_password(authctxt, password)) == 1 59 #ifdef HAVE_CYGWIN 60 && check_nt_auth(1, authctxt->pw) 61 #endif 62 ) 63 authenticated = 1; 64 memset(password, 0, len); 65 xfree(password); 66 return authenticated; 67 } 68 69 Authmethod method_passwd = { 70 "password", 71 userauth_passwd, 72 &options.password_authentication 73 }; 74