[gssapi-openssh.git] / openssh / auth2-passwd.c

/*
 * Copyright (c) 2000 Markus Friedl.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "includes.h"
RCSID("$OpenBSD: auth2-passwd.c,v 1.5 2003/12/31 00:24:50 dtucker Exp $");

#include "xmalloc.h"
#include "packet.h"
#include "log.h"
#include "auth.h"
#include "monitor_wrap.h"
#include "servconf.h"

/* import */
extern ServerOptions options;

static int
userauth_passwd(Authctxt *authctxt)
{
	char *password, *newpass;
	int authenticated = 0;
	int change;
	u_int len, newlen;

	change = packet_get_char();
	password = packet_get_string(&len);
	if (change) {
		/* discard new password from packet */
		newpass = packet_get_string(&newlen);
		memset(newpass, 0, newlen);
		xfree(newpass);
	}
	packet_check_eom();

	if (change)
		logit("password change not supported");
	else if (PRIVSEP(auth_password(authctxt, password)) == 1
#ifdef HAVE_CYGWIN
	    && check_nt_auth(1, authctxt->pw)
#endif
	    )
		authenticated = 1;
	memset(password, 0, len);
	xfree(password);
	return authenticated;
}

Authmethod method_passwd = {
	"password",
	userauth_passwd,
	&options.password_authentication
};
Commit	Line	Data
884dc78b	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"
540d72c3	26	RCSID("$OpenBSD: auth2-passwd.c,v 1.5 2003/12/31 00:24:50 dtucker Exp $");
884dc78b	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	{
540d72c3	41	char password, newpass;
884dc78b	42	int authenticated = 0;
884dc78b	43	int change;
540d72c3	44	u_int len, newlen;
540d72c3	45
884dc78b	46	change = packet_get_char();
884dc78b	47	password = packet_get_string(&len);
540d72c3	48	if (change) {
	49	/* discard new password from packet */
	50	newpass = packet_get_string(&newlen);
	51	memset(newpass, 0, newlen);
	52	xfree(newpass);
	53	}
884dc78b	54	packet_check_eom();
540d72c3	55
	56	if (change)
	57	logit("password change not supported");
	58	else if (PRIVSEP(auth_password(authctxt, password)) == 1
884dc78b	59	#ifdef HAVE_CYGWIN
256cb466	60	&& check_nt_auth(1, authctxt->pw)
884dc78b	61	#endif
256cb466	62	)
884dc78b	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	};