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      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  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
     26  * Use is subject to license terms.
     27  */
     28 
     29 #include "includes.h"
     30 RCSID("$OpenBSD: auth2-passwd.c,v 1.2 2002/05/31 11:35:15 markus Exp $");
     31 
     32 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     33 
     34 #include "xmalloc.h"
     35 #include "packet.h"
     36 #include "log.h"
     37 #include "auth.h"
     38 #include "servconf.h"
     39 
     40 /* import */
     41 extern ServerOptions options;
     42 
     43 static void
     44 userauth_passwd(Authctxt *authctxt)
     45 {
     46 	char *password;
     47 	int change;
     48 	u_int len;
     49 
     50 	if (!authctxt || !authctxt->method)
     51 		fatal("%s: missing context", __func__);
     52 
     53 	change = packet_get_char();
     54 	if (change)
     55 		log("password change not supported");
     56 	password = packet_get_string(&len);
     57 	packet_check_eom();
     58 	if (
     59 #ifdef HAVE_CYGWIN
     60 	    check_nt_auth(1, authctxt->pw) &&
     61 #endif
     62 	    auth_password(authctxt, password) == 1) {
     63 		authctxt->method->authenticated = 1;
     64 	}
     65 	memset(password, 0, len);
     66 	xfree(password);
     67 }
     68 
     69 Authmethod method_passwd = {
     70 	"password",
     71 	&options.password_authentication,
     72 	userauth_passwd,
     73 	NULL,		    /* no abandon function */
     74 	NULL, NULL,	    /* method data and hist data */
     75 	1,		    /* initial userauth */
     76 	0, 0, 0,	    /* counters */
     77 	0, 0, 0, 0, 0, 0    /* state */
     78 };
     79