[openssh.git] / 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"

#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)
		authenticated = 1;
#ifdef HAVE_CYGWIN
	if (check_nt_auth(1, authctxt->pw) == 0)
		authenticated = 0;
#endif
	memset(password, 0, len);
	xfree(password);
	return authenticated;
}

Authmethod method_passwd = {
	"password",
	userauth_passwd,
	&options.password_authentication
};
Commit	Line	Data
013eab17	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"
013eab17	26
	27	#include "xmalloc.h"
	28	#include "packet.h"
	29	#include "log.h"
	30	#include "auth.h"
	31	#include "monitor_wrap.h"
	32	#include "servconf.h"
	33
	34	/* import */
	35	extern ServerOptions options;
	36
	37	static int
	38	userauth_passwd(Authctxt *authctxt)
	39	{
b0ca6225	40	char password, newpass;
013eab17	41	int authenticated = 0;
013eab17	42	int change;
b0ca6225	43	u_int len, newlen;
b0ca6225	44
013eab17	45	change = packet_get_char();
013eab17	46	password = packet_get_string(&len);
b0ca6225	47	if (change) {
	48	/* discard new password from packet */
	49	newpass = packet_get_string(&newlen);
	50	memset(newpass, 0, newlen);
	51	xfree(newpass);
	52	}
013eab17	53	packet_check_eom();
b0ca6225	54
	55	if (change)
	56	logit("password change not supported");
73b1ee82	57	else if (PRIVSEP(auth_password(authctxt, password)) == 1)
73b1ee82	58	authenticated = 1;
013eab17	59	#ifdef HAVE_CYGWIN
73b1ee82	60	if (check_nt_auth(1, authctxt->pw) == 0)
73b1ee82	61	authenticated = 0;
013eab17	62	#endif
013eab17	63	memset(password, 0, len);
	64	xfree(password);
	65	return authenticated;
	66	}
	67
	68	Authmethod method_passwd = {
	69	"password",
	70	userauth_passwd,
	71	&options.password_authentication
	72	};