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.
24 extern struct ipx_driver ipx_win;
26 #define MAX_IPX_DATA 576
29 ipx_socket_t ipx_socket_data;
30 ubyte ipx_installed=0;
31 ushort ipx_socket = 0;
33 ubyte ipx_MyAddress[10];
34 int ipx_packetnum = 0; /* Sequence number */
36 /* User defined routing stuff */
37 typedef struct user_address {
43 int Ipx_num_users = 0;
44 user_address Ipx_users[MAX_USERS];
46 #define MAX_NETWORKS 64
47 int Ipx_num_networks = 0;
48 uint Ipx_networks[MAX_NETWORKS];
52 int ipx_general_PacketReady(ipx_socket_t *s) {
58 tv.tv_sec = tv.tv_usec = 0;
59 if (select(FD_SETSIZE, &set, NULL, NULL, &tv) > 0)
65 struct ipx_driver *driver = &ipx_win;
67 ubyte * ipx_get_my_server_address()
69 return (ubyte *)&ipx_network;
72 ubyte * ipx_get_my_local_address()
74 return (ubyte *)(ipx_MyAddress + 4);
77 //---------------------------------------------------------------
78 // Initializes all IPX internals.
79 // If socket_number==0, then opens next available socket.
80 // Returns: 0 if successful.
81 // -1 if socket already open.
82 // -2 if socket table full.
83 // -3 if IPX not installed.
84 // -4 if couldn't allocate low dos memory
85 // -5 if error with getting internetwork address
86 int ipx_init( int socket_number, int show_address )
90 WORD wVersionRequested;
93 wVersionRequested = MAKEWORD(2, 0);
94 if (WSAStartup( wVersionRequested, &wsaData))
100 if ( LOBYTE( wsaData.wVersion ) != 2 ||
101 HIBYTE( wsaData.wVersion ) != 0 ) {
102 /* We couldn't find a usable WinSock DLL. */
108 printf("Using real IPX for network games\n");
110 if ((i = FindArg("-ipxnetwork")) && Args[i + 1]) {
111 unsigned long n = strtol(Args[i + 1], NULL, 16);
112 ipx_MyAddress[0] = (unsigned char)n >> 24; ipx_MyAddress[1] = (unsigned char)(n >> 16) & 255;
113 ipx_MyAddress[2] = (unsigned char)(n >> 8) & 255; ipx_MyAddress[3] = (unsigned char)n & 255;
114 printf("IPX: Using network %08x\n", (int) n);
116 if (driver->OpenSocket(&ipx_socket_data, socket_number)) {
119 driver->GetMyAddress();
120 memcpy(&ipx_network, ipx_MyAddress, 4);
121 Ipx_num_networks = 0;
122 memcpy( &Ipx_networks[Ipx_num_networks++], &ipx_network, 4 );
125 printf("ipx succesfully installed\n");
133 driver->CloseSocket(&ipx_socket_data);
138 int ipx_get_packet_data( ubyte * data )
140 struct ipx_recv_data rd;
141 char buf[MAX_IPX_DATA];
147 // Like the original, only take latest packet, throw away rest
148 while (driver->PacketReady(&ipx_socket_data)) {
150 driver->ReceivePacket(&ipx_socket_data, buf,
151 sizeof(buf), &rd)) > 4) {
152 if (!memcmp(rd.src_network, ipx_MyAddress, 10))
153 continue; /* don't get own pkts */
154 pkt_num = *(uint *)buf;
155 if (pkt_num >= best_id) {
156 memcpy(data, buf + 4, size - 4);
158 best_size = size - 4;
165 void ipx_send_packet_data( ubyte * data, int datasize, ubyte *network, ubyte *address, ubyte *immediate_address )
167 u_char buf[MAX_IPX_DATA];
168 IPXPacket_t ipx_header;
170 memcpy(ipx_header.Destination.Network, network, 4);
171 memcpy(ipx_header.Destination.Node, immediate_address, 6);
172 *(u_short *)ipx_header.Destination.Socket = htons(ipx_socket_data.socket);
173 ipx_header.PacketType = 4; /* Packet Exchange */
174 *(uint *)buf = ipx_packetnum++;
175 memcpy(buf + 4, data, datasize);
176 driver->SendPacket(&ipx_socket_data, &ipx_header, buf, datasize + 4);
179 void ipx_get_local_target( ubyte * server, ubyte * node, ubyte * local_target )
181 // let's hope Linux knows how to route it
182 memcpy( local_target, node, 6 );
185 void ipx_send_broadcast_packet_data( ubyte * data, int datasize )
188 ubyte broadcast[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
189 ubyte local_address[6];
191 // Set to all networks besides mine
192 for (i=0; i<Ipx_num_networks; i++ ) {
193 if ( memcmp( &Ipx_networks[i], &ipx_network, 4 ) ) {
194 ipx_get_local_target( (ubyte *)&Ipx_networks[i], broadcast, local_address );
195 ipx_send_packet_data( data, datasize, (ubyte *)&Ipx_networks[i], broadcast, local_address );
197 ipx_send_packet_data( data, datasize, (ubyte *)&Ipx_networks[i], broadcast, broadcast );
201 //OLDipx_send_packet_data( data, datasize, (ubyte *)&ipx_network, broadcast, broadcast );
203 // Send directly to all users not on my network or in the network list.
204 for (i=0; i<Ipx_num_users; i++ ) {
205 if ( memcmp( Ipx_users[i].network, &ipx_network, 4 ) ) {
206 for (j=0; j<Ipx_num_networks; j++ ) {
207 if (!memcmp( Ipx_users[i].network, &Ipx_networks[j], 4 ))
210 ipx_send_packet_data( data, datasize, Ipx_users[i].network, Ipx_users[i].node, Ipx_users[i].address );
217 // Sends a non-localized packet... needs 4 byte server, 6 byte address
218 void ipx_send_internetwork_packet_data( ubyte * data, int datasize, ubyte * server, ubyte *address )
220 ubyte local_address[6];
222 if ( (*(uint *)server) != 0 ) {
223 ipx_get_local_target( server, address, local_address );
224 ipx_send_packet_data( data, datasize, server, address, local_address );
226 // Old method, no server info.
227 ipx_send_packet_data( data, datasize, server, address, address );
231 int ipx_change_default_socket( ushort socket_number )
233 if ( !ipx_installed ) return -3;
235 driver->CloseSocket(&ipx_socket_data);
236 if (driver->OpenSocket(&ipx_socket_data, socket_number)) {
242 void ipx_read_user_file(char * filename)
246 char temp_line[132], *p1;
249 if (!filename) return;
253 fp = fopen( filename, "rt" );
256 printf( "Broadcast Users:\n" );
258 while (fgets(temp_line, 132, fp)) {
260 p1 = strchr(temp_line,'\n'); if (p1) *p1 = '\0';
261 p1 = strchr(temp_line,';'); if (p1) *p1 = '\0';
262 #if 1 // adb: replaced sscanf(..., "%2x...", (char *)...) with better, but longer code
263 if (strlen(temp_line) >= 21 && temp_line[8] == '/') {
264 for (n = 0; n < 4; n++) {
265 if (sscanf(temp_line + n * 2, "%2x", &x) != 1)
271 for (n = 0; n < 6; n++) {
272 if (sscanf(temp_line + 9 + n * 2, "%2x", &x) != 1)
281 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] );
282 if ( n != 10 ) continue;
284 if ( Ipx_num_users < MAX_USERS ) {
285 ubyte * ipx_real_buffer = (ubyte *)&tmp;
286 ipx_get_local_target( tmp.network, tmp.node, tmp.address );
287 Ipx_users[Ipx_num_users++] = tmp;
288 printf( "%02X%02X%02X%02X/", ipx_real_buffer[0],ipx_real_buffer[1],ipx_real_buffer[2],ipx_real_buffer[3] );
289 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] );
291 printf( "Too many addresses in %s! (Limit of %d)\n", filename, MAX_USERS );
300 void ipx_read_network_file(char * filename)
304 char temp_line[132], *p1;
307 if (!filename) return;
309 fp = fopen( filename, "rt" );
312 printf( "Using Networks:\n" );
313 for (i=0; i<Ipx_num_networks; i++ ) {
314 ubyte * n1 = (ubyte *)&Ipx_networks[i];
315 printf("* %02x%02x%02x%02x\n", n1[0], n1[1], n1[2], n1[3] );
318 while (fgets(temp_line, 132, fp)) {
320 p1 = strchr(temp_line,'\n'); if (p1) *p1 = '\0';
321 p1 = strchr(temp_line,';'); if (p1) *p1 = '\0';
322 #if 1 // adb: replaced sscanf(..., "%2x...", (char *)...) with better, but longer code
323 if (strlen(temp_line) >= 8) {
324 for (n = 0; n < 4; n++) {
325 if (sscanf(temp_line + n * 2, "%2x", &x) != 1)
334 n = sscanf( temp_line, "%2x%2x%2x%2x", &tmp.network[0], &tmp.network[1], &tmp.network[2], &tmp.network[3] );
335 if ( n != 4 ) continue;
337 if ( Ipx_num_networks < MAX_NETWORKS ) {
339 for (j=0; j<Ipx_num_networks; j++ )
340 if ( !memcmp( &Ipx_networks[j], tmp.network, 4 ) )
342 if ( j >= Ipx_num_networks ) {
343 memcpy( &Ipx_networks[Ipx_num_networks++], tmp.network, 4 );
344 printf(" %02x%02x%02x%02x\n", tmp.network[0], tmp.network[1], tmp.network[2], tmp.network[3] );
347 printf( "Too many networks in %s! (Limit of %d)\n", filename, MAX_NETWORKS );