2 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
3 SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
4 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
5 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
6 IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
7 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
8 FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
9 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
10 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
11 COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
16 * Win32 lower-level network code.
17 * implements functions declared in include/ipx.h
35 #include "ipx_mcast4.h"
36 #include "../../main/player.h" /* for Players */
37 #include "../../main/multi.h" /* for NetPlayers */
39 extern struct ipx_driver ipx_win;
41 #define MAX_IPX_DATA 576
44 ipx_socket_t ipx_socket_data;
45 ubyte ipx_installed=0;
46 ushort ipx_socket = 0;
48 ubyte ipx_MyAddress[10];
49 int ipx_packetnum = 0; /* Sequence number */
51 /* User defined routing stuff */
52 typedef struct user_address {
58 int Ipx_num_users = 0;
59 user_address Ipx_users[MAX_USERS];
61 #define MAX_NETWORKS 64
62 int Ipx_num_networks = 0;
63 uint Ipx_networks[MAX_NETWORKS];
65 int ipx_general_PacketReady(ipx_socket_t *s) {
71 tv.tv_sec = tv.tv_usec = 0;
72 if (select(FD_SETSIZE, &set, NULL, NULL, &tv) > 0)
78 struct ipx_driver *driver = &ipx_win;
80 ubyte * ipx_get_my_server_address()
82 return (ubyte *)&ipx_network;
85 ubyte * ipx_get_my_local_address()
87 return (ubyte *)(ipx_MyAddress + 4);
90 void arch_ipx_set_driver(int ipx_driver)
93 case IPX_DRIVER_IPX: driver = &ipx_win; break;
94 case IPX_DRIVER_UDP: driver = &ipx_udp; break;
95 case IPX_DRIVER_MCAST4: driver = &ipx_mcast4; break;
100 int ipx_init(int socket_number)
104 WORD wVersionRequested;
107 wVersionRequested = MAKEWORD(2, 0);
108 if (WSAStartup( wVersionRequested, &wsaData))
110 return IPX_SOCKET_ALREADY_OPEN;
114 if ( LOBYTE( wsaData.wVersion ) != 2 ||
115 HIBYTE( wsaData.wVersion ) != 0 ) {
116 /* We couldn't find a usable WinSock DLL. */
118 return IPX_SOCKET_TABLE_FULL;
122 if ((i = FindArg("-ipxnetwork")) && Args[i + 1]) {
123 unsigned long n = strtol(Args[i + 1], NULL, 16);
124 ipx_MyAddress[0] = (unsigned char)n >> 24; ipx_MyAddress[1] = (unsigned char)(n >> 16) & 255;
125 ipx_MyAddress[2] = (unsigned char)(n >> 8) & 255; ipx_MyAddress[3] = (unsigned char)n & 255;
126 printf("IPX: Using network %08x\n", (int) n);
128 if (driver->OpenSocket(&ipx_socket_data, socket_number)) {
129 return IPX_NOT_INSTALLED;
131 driver->GetMyAddress();
132 memcpy(&ipx_network, ipx_MyAddress, 4);
133 Ipx_num_networks = 0;
134 memcpy( &Ipx_networks[Ipx_num_networks++], &ipx_network, 4 );
137 printf("ipx succesfully installed\n");
145 driver->CloseSocket(&ipx_socket_data);
150 int ipx_get_packet_data( ubyte * data )
152 struct ipx_recv_data rd;
153 char buf[MAX_IPX_DATA];
154 //killed 6-15-99 to get rid of compile warnings - OE
160 //edited 04/12/99 Matt Mueller - duh, we don't want to throw all that data away!
161 //--killed-- Like the original, only take latest packet, throw away rest
162 //do _NOT_ throw them away!
163 while (driver->PacketReady(&ipx_socket_data)) {
165 driver->ReceivePacket(&ipx_socket_data, buf,
166 sizeof(buf), &rd)) > 4) {
167 if (!memcmp(rd.src_network, ipx_MyAddress, 10))
168 continue; /* don't get own pkts */
169 //--killed-- pkt_num = *(uint *)buf;
170 //--killed-- if (pkt_num >= best_id) {
171 memcpy(data, buf + 4, size - 4);
173 //--killed-- best_id = pkt_num;
174 //--killed-- best_size = size - 4;
182 void ipx_send_packet_data( ubyte * data, int datasize, ubyte *network, ubyte *address, ubyte *immediate_address )
184 u_char buf[MAX_IPX_DATA];
185 IPXPacket_t ipx_header;
187 memcpy(ipx_header.Destination.Network, network, 4);
188 memcpy(ipx_header.Destination.Node, immediate_address, 6);
189 *(u_short *)ipx_header.Destination.Socket = htons(ipx_socket_data.socket);
190 ipx_header.PacketType = 4; /* Packet Exchange */
191 *(uint *)buf = ipx_packetnum++;
192 memcpy(buf + 4, data, datasize);
193 driver->SendPacket(&ipx_socket_data, &ipx_header, buf, datasize + 4);
196 void ipx_get_local_target( ubyte * server, ubyte * node, ubyte * local_target )
198 // let's hope Linux knows how to route it
199 memcpy( local_target, node, 6 );
202 void ipx_send_broadcast_packet_data( ubyte * data, int datasize )
205 ubyte broadcast[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
206 ubyte local_address[6];
208 // Set to all networks besides mine
209 for (i=0; i<Ipx_num_networks; i++ ) {
210 if ( memcmp( &Ipx_networks[i], &ipx_network, 4 ) ) {
211 ipx_get_local_target( (ubyte *)&Ipx_networks[i], broadcast, local_address );
212 ipx_send_packet_data( data, datasize, (ubyte *)&Ipx_networks[i], broadcast, local_address );
214 ipx_send_packet_data( data, datasize, (ubyte *)&Ipx_networks[i], broadcast, broadcast );
218 //OLDipx_send_packet_data( data, datasize, (ubyte *)&ipx_network, broadcast, broadcast );
220 // Send directly to all users not on my network or in the network list.
221 for (i=0; i<Ipx_num_users; i++ ) {
222 if ( memcmp( Ipx_users[i].network, &ipx_network, 4 ) ) {
223 for (j=0; j<Ipx_num_networks; j++ ) {
224 if (!memcmp( Ipx_users[i].network, &Ipx_networks[j], 4 ))
227 ipx_send_packet_data( data, datasize, Ipx_users[i].network, Ipx_users[i].node, Ipx_users[i].address );
234 // Sends a non-localized packet... needs 4 byte server, 6 byte address
235 void ipx_send_internetwork_packet_data( ubyte * data, int datasize, ubyte * server, ubyte *address )
237 ubyte local_address[6];
239 if ( (*(uint *)server) != 0 ) {
240 ipx_get_local_target( server, address, local_address );
241 ipx_send_packet_data( data, datasize, server, address, local_address );
243 // Old method, no server info.
244 ipx_send_packet_data( data, datasize, server, address, address );
248 int ipx_change_default_socket( ushort socket_number )
250 if ( !ipx_installed ) return -3;
252 driver->CloseSocket(&ipx_socket_data);
253 if (driver->OpenSocket(&ipx_socket_data, socket_number)) {
259 void ipx_read_user_file(char * filename)
263 char temp_line[132], *p1;
266 if (!filename) return;
270 fp = fopen( filename, "rt" );
273 printf( "Broadcast Users:\n" );
275 while (fgets(temp_line, 132, fp)) {
277 p1 = strchr(temp_line,'\n'); if (p1) *p1 = '\0';
278 p1 = strchr(temp_line,';'); if (p1) *p1 = '\0';
279 #if 1 // adb: replaced sscanf(..., "%2x...", (char *)...) with better, but longer code
280 if (strlen(temp_line) >= 21 && temp_line[8] == '/') {
281 for (n = 0; n < 4; n++) {
282 if (sscanf(temp_line + n * 2, "%2x", &x) != 1)
288 for (n = 0; n < 6; n++) {
289 if (sscanf(temp_line + 9 + n * 2, "%2x", &x) != 1)
298 n = sscanf( temp_line, "%2x%2x%2x%2x/%2x%2x%2x%2x%2x%2x", &tmp.network[0], &tmp.network[1], &tmp.network[2], &tmp.network[3], &tmp.node[0], &tmp.node[1], &tmp.node[2],&tmp.node[3], &tmp.node[4], &tmp.node[5] );
299 if ( n != 10 ) continue;
301 if ( Ipx_num_users < MAX_USERS ) {
302 ubyte * ipx_real_buffer = (ubyte *)&tmp;
303 ipx_get_local_target( tmp.network, tmp.node, tmp.address );
304 Ipx_users[Ipx_num_users++] = tmp;
305 printf( "%02X%02X%02X%02X/", ipx_real_buffer[0],ipx_real_buffer[1],ipx_real_buffer[2],ipx_real_buffer[3] );
306 printf( "%02X%02X%02X%02X%02X%02X\n", ipx_real_buffer[4],ipx_real_buffer[5],ipx_real_buffer[6],ipx_real_buffer[7],ipx_real_buffer[8],ipx_real_buffer[9] );
308 printf( "Too many addresses in %s! (Limit of %d)\n", filename, MAX_USERS );
317 void ipx_read_network_file(char * filename)
321 char temp_line[132], *p1;
324 if (!filename) return;
326 fp = fopen( filename, "rt" );
329 printf( "Using Networks:\n" );
330 for (i=0; i<Ipx_num_networks; i++ ) {
331 ubyte * n1 = (ubyte *)&Ipx_networks[i];
332 printf("* %02x%02x%02x%02x\n", n1[0], n1[1], n1[2], n1[3] );
335 while (fgets(temp_line, 132, fp)) {
337 p1 = strchr(temp_line,'\n'); if (p1) *p1 = '\0';
338 p1 = strchr(temp_line,';'); if (p1) *p1 = '\0';
339 #if 1 // adb: replaced sscanf(..., "%2x...", (char *)...) with better, but longer code
340 if (strlen(temp_line) >= 8) {
341 for (n = 0; n < 4; n++) {
342 if (sscanf(temp_line + n * 2, "%2x", &x) != 1)
351 n = sscanf( temp_line, "%2x%2x%2x%2x", &tmp.network[0], &tmp.network[1], &tmp.network[2], &tmp.network[3] );
352 if ( n != 4 ) continue;
354 if ( Ipx_num_networks < MAX_NETWORKS ) {
356 for (j=0; j<Ipx_num_networks; j++ )
357 if ( !memcmp( &Ipx_networks[j], tmp.network, 4 ) )
359 if ( j >= Ipx_num_networks ) {
360 memcpy( &Ipx_networks[Ipx_num_networks++], tmp.network, 4 );
361 printf(" %02x%02x%02x%02x\n", tmp.network[0], tmp.network[1], tmp.network[2], tmp.network[3] );
364 printf( "Too many networks in %s! (Limit of %d)\n", filename, MAX_NETWORKS );
372 // Initalizes the protocol-specific member of the netgame packet.
373 void ipx_init_netgame_aux_data(ubyte buf[])
375 if(driver->InitNetgameAuxData)
376 driver->InitNetgameAuxData(&ipx_socket_data, buf);
379 // Handles the protocol-specific member of the netgame packet.
380 int ipx_handle_netgame_aux_data(const ubyte buf[])
382 if(driver->HandleNetgameAuxData)
383 return driver->HandleNetgameAuxData(&ipx_socket_data, buf);
387 // Notifies the protocol that we're done with a particular game
388 void ipx_handle_leave_game()
390 if(driver->HandleLeaveGame)
391 driver->HandleLeaveGame(&ipx_socket_data);
394 // Send a packet to every member of the game.
395 int ipx_send_game_packet(ubyte *data, int datasize)
397 if(driver->SendGamePacket) {
398 u_char buf[MAX_IPX_DATA];
400 *(uint *)buf = ipx_packetnum++;
401 memcpy(buf + 4, data, datasize);
402 *(uint *)data = ipx_packetnum++;
403 return driver->SendGamePacket(&ipx_socket_data, buf, datasize + 4);
405 // Loop through all the players unicasting the packet.
408 //printf("Sending game packet: N_players = %i\n", N_players);
410 for(i=0; i<N_players; i++) {
411 if(Players[i].connected && (i != Player_num))
412 ipx_send_packet_data(data, datasize, NetPlayers.players[i].network.ipx.server, NetPlayers.players[i].network.ipx.node,Players[i].net_address);