1 /*
2 Copyright (C) 1996-1997 Id Software, Inc.
3
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12
13 See the GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18
19 */
20 // net_wipx.c
21
22 #include "quakedef.h"
23 #include "winquake.h"
24 #include <wsipx.h>
25 #include "net_wipx.h"
26
27 extern cvar_t hostname;
28
29 #define MAXHOSTNAMELEN 256
30
31 static int net_acceptsocket = -1; // socket for fielding new connections
32 static int net_controlsocket;
33 static struct qsockaddr broadcastaddr;
34
35 extern qboolean winsock_initialized;
36 extern WSADATA winsockdata;
37
38 #define IPXSOCKETS 18
39 static int ipxsocket[IPXSOCKETS];
40 static int sequence[IPXSOCKETS];
41
42 //=============================================================================
43
WIPX_Init(void)44 int WIPX_Init (void)
45 {
46 int i;
47 char buff[MAXHOSTNAMELEN];
48 struct qsockaddr addr;
49 char *p;
50 int r;
51 WORD wVersionRequested;
52
53 if (COM_CheckParm ("-noipx"))
54 return -1;
55
56 // make sure LoadLibrary has happened successfully
57 if (!winsock_lib_initialized)
58 return -1;
59
60 if (winsock_initialized == 0)
61 {
62 wVersionRequested = MAKEWORD(1, 1);
63
64 r = pWSAStartup (MAKEWORD(1, 1), &winsockdata);
65
66 if (r)
67 {
68 Con_Printf ("Winsock initialization failed.\n");
69 return -1;
70 }
71 }
72 winsock_initialized++;
73
74 for (i = 0; i < IPXSOCKETS; i++)
75 ipxsocket[i] = 0;
76
77 // determine my name & address
78 if (pgethostname(buff, MAXHOSTNAMELEN) == 0)
79 {
80 // if the quake hostname isn't set, set it to the machine name
81 if (Q_strcmp(hostname.string, "UNNAMED") == 0)
82 {
83 // see if it's a text IP address (well, close enough)
84 for (p = buff; *p; p++)
85 if ((*p < '0' || *p > '9') && *p != '.')
86 break;
87
88 // if it is a real name, strip off the domain; we only want the host
89 if (*p)
90 {
91 for (i = 0; i < 15; i++)
92 if (buff[i] == '.')
93 break;
94 buff[i] = 0;
95 }
96 Cvar_Set ("hostname", buff);
97 }
98 }
99
100 if ((net_controlsocket = WIPX_OpenSocket (0)) == -1)
101 {
102 Con_Printf("WIPX_Init: Unable to open control socket\n");
103 if (--winsock_initialized == 0)
104 pWSACleanup ();
105 return -1;
106 }
107
108 ((struct sockaddr_ipx *)&broadcastaddr)->sa_family = AF_IPX;
109 memset(((struct sockaddr_ipx *)&broadcastaddr)->sa_netnum, 0, 4);
110 memset(((struct sockaddr_ipx *)&broadcastaddr)->sa_nodenum, 0xff, 6);
111 ((struct sockaddr_ipx *)&broadcastaddr)->sa_socket = htons((unsigned short)net_hostport);
112
113 WIPX_GetSocketAddr (net_controlsocket, &addr);
114 Q_strcpy(my_ipx_address, WIPX_AddrToString (&addr));
115 p = Q_strrchr (my_ipx_address, ':');
116 if (p)
117 *p = 0;
118
119 Con_Printf("Winsock IPX Initialized\n");
120 ipxAvailable = true;
121
122 return net_controlsocket;
123 }
124
125 //=============================================================================
126
WIPX_Shutdown(void)127 void WIPX_Shutdown (void)
128 {
129 WIPX_Listen (false);
130 WIPX_CloseSocket (net_controlsocket);
131 if (--winsock_initialized == 0)
132 pWSACleanup ();
133 }
134
135 //=============================================================================
136
WIPX_Listen(qboolean state)137 void WIPX_Listen (qboolean state)
138 {
139 // enable listening
140 if (state)
141 {
142 if (net_acceptsocket != -1)
143 return;
144 if ((net_acceptsocket = WIPX_OpenSocket (net_hostport)) == -1)
145 Sys_Error ("WIPX_Listen: Unable to open accept socket\n");
146 return;
147 }
148
149 // disable listening
150 if (net_acceptsocket == -1)
151 return;
152 WIPX_CloseSocket (net_acceptsocket);
153 net_acceptsocket = -1;
154 }
155
156 //=============================================================================
157
WIPX_OpenSocket(int port)158 int WIPX_OpenSocket (int port)
159 {
160 int handle;
161 int newsocket;
162 struct sockaddr_ipx address;
163 u_long _true = 1;
164
165 for (handle = 0; handle < IPXSOCKETS; handle++)
166 if (ipxsocket[handle] == 0)
167 break;
168 if (handle == IPXSOCKETS)
169 return -1;
170
171 if ((newsocket = psocket (AF_IPX, SOCK_DGRAM, NSPROTO_IPX)) == INVALID_SOCKET)
172 return -1;
173
174 if (pioctlsocket (newsocket, FIONBIO, &_true) == -1)
175 goto ErrorReturn;
176
177 if (psetsockopt(newsocket, SOL_SOCKET, SO_BROADCAST, (char *)&_true, sizeof(_true)) < 0)
178 goto ErrorReturn;
179
180 address.sa_family = AF_IPX;
181 memset(address.sa_netnum, 0, 4);
182 memset(address.sa_nodenum, 0, 6);;
183 address.sa_socket = htons((unsigned short)port);
184 if( bind (newsocket, (void *)&address, sizeof(address)) == 0)
185 {
186 ipxsocket[handle] = newsocket;
187 sequence[handle] = 0;
188 return handle;
189 }
190
191 Sys_Error ("Winsock IPX bind failed\n");
192 ErrorReturn:
193 pclosesocket (newsocket);
194 return -1;
195 }
196
197 //=============================================================================
198
WIPX_CloseSocket(int handle)199 int WIPX_CloseSocket (int handle)
200 {
201 int socket = ipxsocket[handle];
202 int ret;
203
204 ret = pclosesocket (socket);
205 ipxsocket[handle] = 0;
206 return ret;
207 }
208
209
210 //=============================================================================
211
WIPX_Connect(int handle,struct qsockaddr * addr)212 int WIPX_Connect (int handle, struct qsockaddr *addr)
213 {
214 return 0;
215 }
216
217 //=============================================================================
218
WIPX_CheckNewConnections(void)219 int WIPX_CheckNewConnections (void)
220 {
221 unsigned long available;
222
223 if (net_acceptsocket == -1)
224 return -1;
225
226 if (pioctlsocket (ipxsocket[net_acceptsocket], FIONREAD, &available) == -1)
227 Sys_Error ("WIPX: ioctlsocket (FIONREAD) failed\n");
228 if (available)
229 return net_acceptsocket;
230 return -1;
231 }
232
233 //=============================================================================
234
235 static byte packetBuffer[NET_DATAGRAMSIZE + 4];
236
WIPX_Read(int handle,byte * buf,int len,struct qsockaddr * addr)237 int WIPX_Read (int handle, byte *buf, int len, struct qsockaddr *addr)
238 {
239 int addrlen = sizeof (struct qsockaddr);
240 int socket = ipxsocket[handle];
241 int ret;
242
243 ret = precvfrom (socket, packetBuffer, len+4, 0, (struct sockaddr *)addr, &addrlen);
244 if (ret == -1)
245 {
246 int errno = pWSAGetLastError();
247
248 if (errno == WSAEWOULDBLOCK || errno == WSAECONNREFUSED)
249 return 0;
250
251 }
252
253 if (ret < 4)
254 return 0;
255
256 // remove sequence number, it's only needed for DOS IPX
257 ret -= 4;
258 memcpy(buf, packetBuffer+4, ret);
259
260 return ret;
261 }
262
263 //=============================================================================
264
WIPX_Broadcast(int handle,byte * buf,int len)265 int WIPX_Broadcast (int handle, byte *buf, int len)
266 {
267 return WIPX_Write (handle, buf, len, &broadcastaddr);
268 }
269
270 //=============================================================================
271
WIPX_Write(int handle,byte * buf,int len,struct qsockaddr * addr)272 int WIPX_Write (int handle, byte *buf, int len, struct qsockaddr *addr)
273 {
274 int socket = ipxsocket[handle];
275 int ret;
276
277 // build packet with sequence number
278 *(int *)(&packetBuffer[0]) = sequence[handle];
279 sequence[handle]++;
280 memcpy(&packetBuffer[4], buf, len);
281 len += 4;
282
283 ret = psendto (socket, packetBuffer, len, 0, (struct sockaddr *)addr, sizeof(struct qsockaddr));
284 if (ret == -1)
285 if (pWSAGetLastError() == WSAEWOULDBLOCK)
286 return 0;
287
288 return ret;
289 }
290
291 //=============================================================================
292
WIPX_AddrToString(struct qsockaddr * addr)293 char *WIPX_AddrToString (struct qsockaddr *addr)
294 {
295 static char buf[28];
296
297 sprintf(buf, "%02x%02x%02x%02x:%02x%02x%02x%02x%02x%02x:%u",
298 ((struct sockaddr_ipx *)addr)->sa_netnum[0] & 0xff,
299 ((struct sockaddr_ipx *)addr)->sa_netnum[1] & 0xff,
300 ((struct sockaddr_ipx *)addr)->sa_netnum[2] & 0xff,
301 ((struct sockaddr_ipx *)addr)->sa_netnum[3] & 0xff,
302 ((struct sockaddr_ipx *)addr)->sa_nodenum[0] & 0xff,
303 ((struct sockaddr_ipx *)addr)->sa_nodenum[1] & 0xff,
304 ((struct sockaddr_ipx *)addr)->sa_nodenum[2] & 0xff,
305 ((struct sockaddr_ipx *)addr)->sa_nodenum[3] & 0xff,
306 ((struct sockaddr_ipx *)addr)->sa_nodenum[4] & 0xff,
307 ((struct sockaddr_ipx *)addr)->sa_nodenum[5] & 0xff,
308 ntohs(((struct sockaddr_ipx *)addr)->sa_socket)
309 );
310 return buf;
311 }
312
313 //=============================================================================
314
WIPX_StringToAddr(char * string,struct qsockaddr * addr)315 int WIPX_StringToAddr (char *string, struct qsockaddr *addr)
316 {
317 int val;
318 char buf[3];
319
320 buf[2] = 0;
321 Q_memset(addr, 0, sizeof(struct qsockaddr));
322 addr->sa_family = AF_IPX;
323
324 #define DO(src,dest) \
325 buf[0] = string[src]; \
326 buf[1] = string[src + 1]; \
327 if (sscanf (buf, "%x", &val) != 1) \
328 return -1; \
329 ((struct sockaddr_ipx *)addr)->dest = val
330
331 DO(0, sa_netnum[0]);
332 DO(2, sa_netnum[1]);
333 DO(4, sa_netnum[2]);
334 DO(6, sa_netnum[3]);
335 DO(9, sa_nodenum[0]);
336 DO(11, sa_nodenum[1]);
337 DO(13, sa_nodenum[2]);
338 DO(15, sa_nodenum[3]);
339 DO(17, sa_nodenum[4]);
340 DO(19, sa_nodenum[5]);
341 #undef DO
342
343 sscanf (&string[22], "%u", &val);
344 ((struct sockaddr_ipx *)addr)->sa_socket = htons((unsigned short)val);
345
346 return 0;
347 }
348
349 //=============================================================================
350
WIPX_GetSocketAddr(int handle,struct qsockaddr * addr)351 int WIPX_GetSocketAddr (int handle, struct qsockaddr *addr)
352 {
353 int socket = ipxsocket[handle];
354 int addrlen = sizeof(struct qsockaddr);
355 unsigned int a;
356
357 Q_memset(addr, 0, sizeof(struct qsockaddr));
358 if(pgetsockname(socket, (struct sockaddr *)addr, &addrlen) != 0)
359 {
360 int errno = pWSAGetLastError();
361 }
362
363 return 0;
364 }
365
366 //=============================================================================
367
WIPX_GetNameFromAddr(struct qsockaddr * addr,char * name)368 int WIPX_GetNameFromAddr (struct qsockaddr *addr, char *name)
369 {
370 Q_strcpy(name, WIPX_AddrToString(addr));
371 return 0;
372 }
373
374 //=============================================================================
375
WIPX_GetAddrFromName(char * name,struct qsockaddr * addr)376 int WIPX_GetAddrFromName(char *name, struct qsockaddr *addr)
377 {
378 int n;
379 char buf[32];
380
381 n = Q_strlen(name);
382
383 if (n == 12)
384 {
385 sprintf(buf, "00000000:%s:%u", name, net_hostport);
386 return WIPX_StringToAddr (buf, addr);
387 }
388 if (n == 21)
389 {
390 sprintf(buf, "%s:%u", name, net_hostport);
391 return WIPX_StringToAddr (buf, addr);
392 }
393 if (n > 21 && n <= 27)
394 return WIPX_StringToAddr (name, addr);
395
396 return -1;
397 }
398
399 //=============================================================================
400
WIPX_AddrCompare(struct qsockaddr * addr1,struct qsockaddr * addr2)401 int WIPX_AddrCompare (struct qsockaddr *addr1, struct qsockaddr *addr2)
402 {
403 if (addr1->sa_family != addr2->sa_family)
404 return -1;
405
406 if (*((struct sockaddr_ipx *)addr1)->sa_netnum && *((struct sockaddr_ipx *)addr2)->sa_netnum)
407 if (memcmp(((struct sockaddr_ipx *)addr1)->sa_netnum, ((struct sockaddr_ipx *)addr2)->sa_netnum, 4) != 0)
408 return -1;
409 if (memcmp(((struct sockaddr_ipx *)addr1)->sa_nodenum, ((struct sockaddr_ipx *)addr2)->sa_nodenum, 6) != 0)
410 return -1;
411
412 if (((struct sockaddr_ipx *)addr1)->sa_socket != ((struct sockaddr_ipx *)addr2)->sa_socket)
413 return 1;
414
415 return 0;
416 }
417
418 //=============================================================================
419
WIPX_GetSocketPort(struct qsockaddr * addr)420 int WIPX_GetSocketPort (struct qsockaddr *addr)
421 {
422 return ntohs(((struct sockaddr_ipx *)addr)->sa_socket);
423 }
424
425
WIPX_SetSocketPort(struct qsockaddr * addr,int port)426 int WIPX_SetSocketPort (struct qsockaddr *addr, int port)
427 {
428 ((struct sockaddr_ipx *)addr)->sa_socket = htons((unsigned short)port);
429 return 0;
430 }
431
432 //=============================================================================
433