/*
 * Copyright (c) 1998-2001, Robert O'Callahan
 * (C) 2004-2017 TeraTerm Project
 * 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.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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.
 */

/*
This code is copyright (C) 1998-1999 Robert O'Callahan.
See LICENSE.TXT for the license.
*/

#ifndef __X11UTIL_H
#define __X11UTIL_H

#include "ttxssh.h"

typedef struct _X11AuthData {
  char *local_protocol;
  unsigned char *local_data;
  int local_data_len;
  char *spoofed_protocol;
  unsigned char *spoofed_data;
  int spoofed_data_len;
} X11AuthData;

#define X11_get_spoofed_protocol_name(d) ((d)->spoofed_protocol)
#define X11_get_spoofed_protocol_data(d) ((d)->spoofed_data)
#define X11_get_spoofed_protocol_data_len(d) ((d)->spoofed_data_len)

void X11_get_DISPLAY_info(PTInstVar pvar, char *name_buf, int name_buf_len, int *port, int *screen);
X11AuthData *X11_load_local_auth_data(int screen_num);
void *X11_init_unspoofing_filter(struct _TInstVar *pvar, X11AuthData *auth_data);
FwdFilterResult X11_unspoofing_filter(void *closure, FwdFilterEvent event, int *length, unsigned char **buf);
void X11_dispose_auth_data(X11AuthData *auth_data);

#endif
