1 /* $Id: winnet.c,v 1.6 2003-10-03 07:58:14 btb Exp $ */
3 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
4 SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
5 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
6 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
7 IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
8 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
9 FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
10 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
11 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
12 COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
17 * Win32 lower-level network code.
18 * implements functions declared in include/ipx.h
34 extern struct ipx_driver ipx_win;
36 #define MAX_IPX_DATA 576
39 ipx_socket_t ipx_socket_data;
40 ubyte ipx_installed=0;
41 ushort ipx_socket = 0;
43 ubyte ipx_MyAddress[10];
44 int ipx_packetnum = 0; /* Sequence number */
46 /* User defined routing stuff */
47 typedef struct user_address {
53 int Ipx_num_users = 0;
54 user_address Ipx_users[MAX_USERS];
56 #define MAX_NETWORKS 64
57 int Ipx_num_networks = 0;
58 uint Ipx_networks[MAX_NETWORKS];
60 int ipx_general_PacketReady(ipx_socket_t *s) {
66 tv.tv_sec = tv.tv_usec = 0;
67 if (select(FD_SETSIZE, &set, NULL, NULL, &tv) > 0)
73 struct ipx_driver *driver = &ipx_win;
75 ubyte * ipx_get_my_server_address()
77 return (ubyte *)&ipx_network;
80 ubyte * ipx_get_my_local_address()
82 return (ubyte *)(ipx_MyAddress + 4);
85 void arch_ipx_set_driver(int ipx_driver)
87 if (ipx_driver != IPX_DRIVER_IPX)
88 Warning("Unknown network driver! Defaulting to real IPX");
93 int ipx_init(int socket_number)
97 WORD wVersionRequested;
100 wVersionRequested = MAKEWORD(2, 0);
101 if (WSAStartup( wVersionRequested, &wsaData))
103 return IPX_SOCKET_ALREADY_OPEN;
107 if ( LOBYTE( wsaData.wVersion ) != 2 ||
108 HIBYTE( wsaData.wVersion ) != 0 ) {
109 /* We couldn't find a usable WinSock DLL. */
111 return IPX_SOCKET_TABLE_FULL;
115 if ((i = FindArg("-ipxnetwork")) && Args[i + 1]) {
116 unsigned long n = strtol(Args[i + 1], NULL, 16);
117 ipx_MyAddress[0] = (unsigned char)n >> 24; ipx_MyAddress[1] = (unsigned char)(n >> 16) & 255;
118 ipx_MyAddress[2] = (unsigned char)(n >> 8) & 255; ipx_MyAddress[3] = (unsigned char)n & 255;
119 printf("IPX: Using network %08x\n", (int) n);
121 if (driver->OpenSocket(&ipx_socket_data, socket_number)) {
122 return IPX_NOT_INSTALLED;
124 driver->GetMyAddress();
125 memcpy(&ipx_network, ipx_MyAddress, 4);
126 Ipx_num_networks = 0;
127 memcpy( &Ipx_networks[Ipx_num_networks++], &ipx_network, 4 );
130 printf("ipx succesfully installed\n");
138 driver->CloseSocket(&ipx_socket_data);
143 int ipx_get_packet_data( ubyte * data )
145 struct ipx_recv_data rd;
146 char buf[MAX_IPX_DATA];
152 // Like the original, only take latest packet, throw away rest
153 while (driver->PacketReady(&ipx_socket_data)) {
155 driver->ReceivePacket(&ipx_socket_data, buf,
156 sizeof(buf), &rd)) > 4) {
157 if (!memcmp(rd.src_network, ipx_MyAddress, 10))
158 continue; /* don't get own pkts */
159 pkt_num = *(uint *)buf;
160 if (pkt_num >= best_id) {
161 memcpy(data, buf + 4, size - 4);
163 best_size = size - 4;
170 void ipx_send_packet_data( ubyte * data, int datasize, ubyte *network, ubyte *address, ubyte *immediate_address )
172 u_char buf[MAX_IPX_DATA];
173 IPXPacket_t ipx_header;
175 memcpy(ipx_header.Destination.Network, network, 4);
176 memcpy(ipx_header.Destination.Node, immediate_address, 6);
177 *(u_short *)ipx_header.Destination.Socket = htons(ipx_socket_data.socket);
178 ipx_header.PacketType = 4; /* Packet Exchange */
179 *(uint *)buf = ipx_packetnum++;
180 memcpy(buf + 4, data, datasize);
181 driver->SendPacket(&ipx_socket_data, &ipx_header, buf, datasize + 4);
184 void ipx_get_local_target( ubyte * server, ubyte * node, ubyte * local_target )
186 // let's hope Linux knows how to route it
187 memcpy( local_target, node, 6 );
190 void ipx_send_broadcast_packet_data( ubyte * data, int datasize )
193 ubyte broadcast[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
194 ubyte local_address[6];
196 // Set to all networks besides mine
197 for (i=0; i<Ipx_num_networks; i++ ) {
198 if ( memcmp( &Ipx_networks[i], &ipx_network, 4 ) ) {
199 ipx_get_local_target( (ubyte *)&Ipx_networks[i], broadcast, local_address );
200 ipx_send_packet_data( data, datasize, (ubyte *)&Ipx_networks[i], broadcast, local_address );
202 ipx_send_packet_data( data, datasize, (ubyte *)&Ipx_networks[i], broadcast, broadcast );
206 //OLDipx_send_packet_data( data, datasize, (ubyte *)&ipx_network, broadcast, broadcast );
208 // Send directly to all users not on my network or in the network list.
209 for (i=0; i<Ipx_num_users; i++ ) {
210 if ( memcmp( Ipx_users[i].network, &ipx_network, 4 ) ) {
211 for (j=0; j<Ipx_num_networks; j++ ) {
212 if (!memcmp( Ipx_users[i].network, &Ipx_networks[j], 4 ))
215 ipx_send_packet_data( data, datasize, Ipx_users[i].network, Ipx_users[i].node, Ipx_users[i].address );
222 // Sends a non-localized packet... needs 4 byte server, 6 byte address
223 void ipx_send_internetwork_packet_data( ubyte * data, int datasize, ubyte * server, ubyte *address )
225 ubyte local_address[6];
227 if ( (*(uint *)server) != 0 ) {
228 ipx_get_local_target( server, address, local_address );
229 ipx_send_packet_data( data, datasize, server, address, local_address );
231 // Old method, no server info.
232 ipx_send_packet_data( data, datasize, server, address, address );
236 int ipx_change_default_socket( ushort socket_number )
238 if ( !ipx_installed ) return -3;
240 driver->CloseSocket(&ipx_socket_data);
241 if (driver->OpenSocket(&ipx_socket_data, socket_number)) {
247 void ipx_read_user_file(char * filename)
251 char temp_line[132], *p1;
254 if (!filename) return;
258 fp = fopen( filename, "rt" );
261 printf( "Broadcast Users:\n" );
263 while (fgets(temp_line, 132, fp)) {
265 p1 = strchr(temp_line,'\n'); if (p1) *p1 = '\0';
266 p1 = strchr(temp_line,';'); if (p1) *p1 = '\0';
267 #if 1 // adb: replaced sscanf(..., "%2x...", (char *)...) with better, but longer code
268 if (strlen(temp_line) >= 21 && temp_line[8] == '/') {
269 for (n = 0; n < 4; n++) {
270 if (sscanf(temp_line + n * 2, "%2x", &x) != 1)
276 for (n = 0; n < 6; n++) {
277 if (sscanf(temp_line + 9 + n * 2, "%2x", &x) != 1)
286 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] );
287 if ( n != 10 ) continue;
289 if ( Ipx_num_users < MAX_USERS ) {
290 ubyte * ipx_real_buffer = (ubyte *)&tmp;
291 ipx_get_local_target( tmp.network, tmp.node, tmp.address );
292 Ipx_users[Ipx_num_users++] = tmp;
293 printf( "%02X%02X%02X%02X/", ipx_real_buffer[0],ipx_real_buffer[1],ipx_real_buffer[2],ipx_real_buffer[3] );
294 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] );
296 printf( "Too many addresses in %s! (Limit of %d)\n", filename, MAX_USERS );
305 void ipx_read_network_file(char * filename)
309 char temp_line[132], *p1;
312 if (!filename) return;
314 fp = fopen( filename, "rt" );
317 printf( "Using Networks:\n" );
318 for (i=0; i<Ipx_num_networks; i++ ) {
319 ubyte * n1 = (ubyte *)&Ipx_networks[i];
320 printf("* %02x%02x%02x%02x\n", n1[0], n1[1], n1[2], n1[3] );
323 while (fgets(temp_line, 132, fp)) {
325 p1 = strchr(temp_line,'\n'); if (p1) *p1 = '\0';
326 p1 = strchr(temp_line,';'); if (p1) *p1 = '\0';
327 #if 1 // adb: replaced sscanf(..., "%2x...", (char *)...) with better, but longer code
328 if (strlen(temp_line) >= 8) {
329 for (n = 0; n < 4; n++) {
330 if (sscanf(temp_line + n * 2, "%2x", &x) != 1)
339 n = sscanf( temp_line, "%2x%2x%2x%2x", &tmp.network[0], &tmp.network[1], &tmp.network[2], &tmp.network[3] );
340 if ( n != 4 ) continue;
342 if ( Ipx_num_networks < MAX_NETWORKS ) {
344 for (j=0; j<Ipx_num_networks; j++ )
345 if ( !memcmp( &Ipx_networks[j], tmp.network, 4 ) )
347 if ( j >= Ipx_num_networks ) {
348 memcpy( &Ipx_networks[Ipx_num_networks++], tmp.network, 4 );
349 printf(" %02x%02x%02x%02x\n", tmp.network[0], tmp.network[1], tmp.network[2], tmp.network[3] );
352 printf( "Too many networks in %s! (Limit of %d)\n", filename, MAX_NETWORKS );