tcp.h

/*
 * This source file is Copyright 1995 by Evan Scott.
 * All rights reserved.
 * Permission is granted to distribute this file provided no
 * fees beyond distribution costs are levied.
 */


typedef union
{
	struct
	{
		unsigned char a;
		unsigned char b;
		unsigned char c;
		unsigned char d;
	} dot;

	unsigned long l;
} ipnum;

typedef union
{
	struct
	{
		unsigned char a;
		unsigned char b;
	} dot;

	unsigned short w;
} portnum;

/* something like an iorequest ... probably a real exec device
   implementation would be good, but for now just DIY */

typedef struct tcpm
{
	struct Message header;

	magic_verify;

	unsigned long command;
	void* ident; /* stores pointer to context information */

	ipnum address;
	portnum port;

	void* data;
	struct tcpm* interrupt;
	unsigned long length;

	unsigned long result;
	unsigned long error;
	unsigned long flags;
	unsigned long userid;
	void* userdata;
} tcpmessage;

typedef struct
{
	magic_verify;

	signed long fd;
	void* connecting_port;
	boolean eof;
} tcpident;

#define V_tcpmessage 4159
#define  V_tcpident 7592

/* commands */
#define TCP_NOOP  0
#define  TCP_CONNECT 1
#define  TCP_LISTEN  2
#define TCP_READ  3
#define TCP_WRITE 4
#define TCP_CLOSE 5
#define TCP_INTERRUPT   6

/* hmmm, keep these??? */
#define TCP_NEWMESSAGE  7
#define TCP_DISPOSE  8

/* internal */
#define TCP_CONNECTED   9  /* CONNECT reply */
#define TCP_ACCEPTED 10 /* Async ACCEPT */
#define TCP_WRITTEN  11 /* WRITE reply (not used) */
#define TCP_GOT      12 /* READ reply (not used) */
#define TCP_STARTUP  13 /* STARTUP was successful/unsuccessful */

#define TCP_DIE      14

/* info */
#define TCP_PEERNAME 15
#define TCP_SERVICE  16

/* errors */
#define  NO_ERROR    0
#define ERROR_OOM    1
#define ERROR_UNKNOWN_COMMAND 2
#define ERROR_NO_CONNECTION   3
#define ERROR_LOST_CONNECTION 4
#define ERROR_ALREADY_CONNECTED  5
#define ERROR_ACCESS_DENIED   6
#define ERROR_EOF    7
#define ERROR_INTERRUPTED  8
#define ERROR_UNKNOWN_HOST 9
#define ERROR_CANT_CONNECT 10
#define ERROR_UNREACHABLE  11
#define ERROR_CONNECT_REFUSED 12

/* flags */
#define FLAG_READLINE      1

#ifndef __MORPHOS__
void SAVEDS ASM tcp_handler(REG(a0, unsigned char *parent_port));
#else
void tcp_handler(unsigned char *parent_port);
#endif
void unique_name(void*, unsigned char*, unsigned char*);