70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/* $Id: udp.h,v 1.2 2005/03/27 01:31:50 stpohle Exp $
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* UDP Network */
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#ifndef _UDP_H
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#define _UDP_H
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <time.h>
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#include <sys/time.h>
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#ifdef _WIN32
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#include <winsock.h>
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#include <io.h>
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#else
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netdb.h>
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#include <arpa/inet.h>
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#include <unistd.h>
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#include <sys/time.h>
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#endif
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// #define IPv6 // just here for debugging - set via SConstruct
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#ifdef IPv6
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#define _sockaddr sockaddr_in6
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#define _af AF_INET6
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#define _pf PF_INET6
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#else
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#define _sockaddr sockaddr_in
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#define _af AF_INET
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#define _pf PF_INET
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#endif
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#define DXXcfgid "D2Rc" // identification string for UDP/IP configuration packets
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#define MAX_CONNECTIONS 32 // maximum connections that can be stored in UDPPeers
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#define LEN_SERVERNAME 41
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#define LEN_PORT 6
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#define UDP_BASEPORT 31017
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// CFGFlags
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#define CFG_FIRSTCONTACT_REQ 1 // Request to get in contact with host for the first time to show the game
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#define CFG_FIRSTCONTACT_ACK 2 // Ack so client proceeds and adds host addr to it's peer list
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#define CFG_HANDSHAKE_INIT 3 // Request from Host to Handshake between two clients
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#define CFG_HANDSHAKE_ACK 4 // Handshake OK answer
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#define CFG_HANDSHAKE_PING 5 // Contact from connected client to a new one
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#define CFG_HANDSHAKE_PONG 6 // Answer from new client - Handshake successful
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typedef struct peer_list
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{
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struct _sockaddr addr; // real address information about this peer
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int valid; // 1 = client connected / 2 = client ready for handshaking / 3 = client done with handshake and fully joined
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fix timestamp; // time of received packet - used for timeout
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char hs_list[MAX_CONNECTIONS]; // list to store all handshake results from clients assigned to this peer
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int hstimeout; // counts the number of tries the client tried to connect - if reached 10, client put to relay if allowed
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int relay; // relay packets by this clients over host
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} __pack__ peer_list;
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extern sequence_packet My_Seq;
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extern void network_init(void);
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extern int network_do_join_game();
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extern int get_and_show_netgame_info(ubyte *server, ubyte *node, ubyte *net_address);
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extern int UDPReceivePacket(socket_t *unused, char *text, int len, struct recv_data *rd);
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extern int UDPgeneral_PacketReady(socket_t *unused);
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#endif
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