telnet.h

/* ES40 emulator.
 * Copyright (C) 2007-2008 by the ES40 Emulator Project
 *
 * WWW    : http://sourceforge.net/projects/es40
 * E-mail : camiel@camicom.com
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 * 
 * Although this is not required, the author would appreciate being notified of, 
 * and receiving any modifications you may make to the source code that might serve
 * the general public.
 */

/** 
 * \file
 * Contains TCP/IP declarations used by the serial port emulator and lock-step
 * code. Different OS'es need different header files included, and some OS'es
 * miss certain functions or macro's we need. In this file, we try to take 
 * away most of these differences.
 *
 * $Id: telnet.h,v 1.10 2008/02/20 19:16:19 iamcamiel Exp $
 *
 * X-1.10       Alex                                            20-FEB-2008
 *      GNU compiler support on Windows.
 *
 * X-1.9        Camiel Vanderhoeven                             04-JAN-2008
 *      Comments.
 *
 * X-1.8        Fang Zhe                                        04-JAN-2008
 *      Include sys/socket.h on Apple OS X.
 *
 * X-1.7        Camiel Vanderhoeven                             02-JAN-2008
 *      Comments.
 *
 * X-1.6        Brian Wheeler                                   1-DEC-2007
 *      Corrected an unsigned/signed issue in inet_aton.
 *
 * X-1.5        Camiel Vanderhoeven                             15-NOV-2007
 *      Replace winsock.h by winsock2.h.
 *
 * X-1.4        Camiel Vanderhoeven                             15-NOV-2007
 *      Added some includes for Linux.
 *
 * X-1.3        Camiel Vanderhoeven                             14-NOV-2007
 *      Added inet_aton.
 *
 * X-1.2        Camiel Vanderhoeven                             30-MAR-2007
 *      Added old changelog comments.
 *
 * X-1.1        Camiel Vanderhoeven                             28-FEB-2007
 *      File created. Code was previously found in Serial.cpp and Serial.h
 *
 * \author Camiel Vanderhoeven (camiel@camicom.com / http://www.camicom.com)
 **/

#if !defined(INCLUDED_TELNET_H)
#define INCLUDED_TELNET_H

#if defined(_WIN32)
#include <winsock2.h>
#if defined(__GNUWIN32__)
#include <ws2tcpip.h>
#else  
typedef size_t ssize_t;
typedef int socklen_t;
#endif // __GNUWIN32__
#endif // _WIN32

#if defined(__APPLE__)
#include <sys/socket.h>
#endif // __APPLE__

#if defined(__VMS)
#include <socket.h>
#include <in.h>
#include <inet.h>
#define INVALID_SOCKET -1
typedef unsigned int socklen_t;
#endif // __VMS

#if defined(_WIN32) || defined(__VMS)

#define	IAC	255		/* interpret as command: */
#define	DONT	254		/* you are not to use option */
#define	DO	253		/* please, you use option */
#define	WONT	252		/* I won't use option */
#define	WILL	251		/* I will use option */
#define	SB	250		/* interpret as subnegotiation */
#define	GA	249		/* you may reverse the line */
#define	EL	248		/* erase the current line */
#define	EC	247		/* erase the current character */
#define	AYT	246		/* are you there */
#define	AO	245		/* abort output--but let prog finish */
#define	IP	244		/* interrupt process--permanently */
#define	BREAK	243		/* break */
#define	DM	242		/* data mark--for connect. cleaning */
#define	NOP	241		/* nop */
#define	SE	240		/* end sub negotiation */
#define EOR     239             /* end of record (transparent mode) */
#define	ABORT	238		/* Abort process */
#define	SUSP	237		/* Suspend process */
#define	xEOF	236		/* End of file: EOF is already used... */

#define SYNCH	242		/* for telfunc calls */
#define TELOPT_ECHO	1	/* echo */
#define	TELOPT_SGA	3	/* suppress go ahead */
#define	TELOPT_NAWS	31	/* window size */
#define	TELOPT_LFLOW	33	/* remote flow control */

#else // defined(_WIN32) || defined(__VMS)

#include <arpa/inet.h>
#include <arpa/telnet.h>
#include <netinet/in.h>
#include <sys/select.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#define INVALID_SOCKET 1

#endif // defined (_WIN32) || defined(__VMS)

  /* inet_aton -- Emulate BSD inet_aton via inet_addr.
   *
   * Useful on systems that don't have inet_aton, such as Solaris,
   * to let your code use the better inet_aton interface and use autoconf
   * and AC_REPLACE_FUNCS([inet_aton]).
   *
   * Copyright (C) 2003 Matthias Andree <matthias.andree@gmx.de>
   */
  
  #ifndef HAVE_INET_ATON
    
  inline int inet_aton (const char *name, struct in_addr *addr)
  {
    unsigned long a = inet_addr (name);
    addr->s_addr = a;
    return a != (unsigned int) -1;
  }
  
  #endif

#endif // !defined(INCLUDED_TELNET_H)