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1.1 root 1: // net_bw.c
2:
3: #include <stdio.h>
4: #include <stdlib.h>
5: #include <dpmi.h>
6:
7: #include "quakedef.h"
8: #include "dosisms.h"
9:
10:
11: // this section is general Unix stuff that we need
12:
13: #define EIO 5 /* I/O error */
14: #define EBADS 9
15: #define EWOULDBLOCK 35 /* function would block */
16: #define EMSGSIZE 40 /* message to big for buffers */
17: #define EPROTONOSUPPORT 43 /* Protocol not supported */
18: #define ESOCKTNOSUPPORT 44 /* Socket type not supported */
19: #define EPFNOSUPPORT 46 /* Protocol family not supported */
20: #define EAFNOSUPPORT 47 /* Address family not supported */
21: #define ECONNABORTED 53 /* User requested hangup */
22: #define ENOBUFS 55 /* No buffers available */
23: #define EISCONN 56 /* Socket has closed */
24: #define ENOTCONN 57 /* Socket is not connected */
25: #define ESHUTDOWN 58 /* Socket is closed */
26: #define ETOOMANYREFS 59 /* Too many sockets open */
27: #define ETIMEDOUT 60 /* Connection timed out */
28: #define ECONNREFUSED 61 /* Connection refused */
29:
30: #define AF_INET 2 /* internet */
31:
32: #define PF_INET AF_INET
33:
34: #define SOCK_STREAM 1 /* stream */
35: #define SOCK_DGRAM 2 /* datagram */
36:
37: #define IPPROTO_TCP 6
38: #define IPPROTO_UDP 17
39:
40: #define INADDR_ANY 0
41:
42: #define SIOCDONE 0x7300
43: #define FIONREAD 0x667f
44: #define FIONBIO 0x667e
45: #define FIONWIN 0x1000
46: #define FIONTIN 0x2000
47:
48: #define BRDINIT 0
49: #define BRDADDR 10
50:
51: #define MAXHOSTNAMELEN 256
52:
53: #define SOL_SOCKET 0xffff /* options for socket level */
54:
55: /*
56: * Option flags per-socket.
57: */
58: #define SO_DEBUG 0x0001 /* turn on debugging info recording */
59: #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
60: #define SO_REUSEADDR 0x0004 /* allow local address reuse */
61: #define SO_KEEPALIVE 0x0008 /* keep connections alive */
62: #define SO_DONTROUTE 0x0010 /* just use interface addresses */
63: #define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */
64: #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
65: #define SO_LINGER 0x0080 /* linger on close if data present */
66: #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
67: #define SO_USEPRIV 0x4000 /* allocate from privileged port area */
68: #define SO_CANTSIG 0x8000 /* prevent SIGPIPE on SS_CANTSENDMORE */
69:
70: /*
71: * Additional options, not kept in so_options.
72: */
73: #define SO_SNDBUF 0x1001 /* send buffer size */
74: #define SO_RCVBUF 0x1002 /* receive buffer size */
75: #define SO_SNDLOWAT 0x1003 /* send low-water mark */
76: #define SO_RCVLOWAT 0x1004 /* receive low-water mark */
77: #define SO_SNDTIMEO 0x1005 /* send timeout */
78: #define SO_RCVTIMEO 0x1006 /* receive timeout */
79: #define SO_ERROR 0x1007 /* get error status and clear */
80: #define SO_TYPE 0x1008 /* get socket type */
81:
82:
83: struct in_addr
84: {
85: union
86: {
87: struct { unsigned char s_b1,s_b2,s_b3,s_b4; } S_un_b;
88: struct { unsigned short s_w1,s_w2; } S_un_w;
89: unsigned long S_addr;
90: } S_un;
91: };
92: #define s_addr S_un.S_addr /* can be used for most tcp & ip code */
93: #define s_host S_un.S_un_b.s_b2 /* host on imp */
94: #define s_net S_un.S_un_b.s_b1 /* network */
95: #define s_imp S_un.S_un_w.s_w2 /* imp */
96: #define s_impno S_un.S_un_b.s_b4 /* imp # */
97: #define s_lh S_un.S_un_b.s_b3 /* logical host */
98:
99: struct sockaddr_in
100: {
101: short sin_family;
102: unsigned short sin_port;
103: struct in_addr sin_addr;
104: char sin_zero[8];
105: };
106:
107: struct hostent {
108: char *h_name; /* official name of host */
109: char **h_aliases; /* alias list */
110: int h_addrtype; /* host address type */
111: int h_length; /* length of address */
112: char **h_addr_list; /* list of addresses from name server */
113: #define h_addr h_addr_list[0] /* address, for backward compatiblity */
114: };
115:
116: char *inet_ntoa(struct in_addr in);
117:
118:
119: // this section is B&W specific constants & structures
120:
121: #define BW_IOCTL_BIND 0
122: #define BW_IOCTL_CLEAROPTIONS 5
123: #define BW_IOCTL_SETOPTIONS 6
124: #define BW_IOCTL_PEEK 7
125: #define BW_IOCTL_SETWINMASK 8
126:
127: #define BW_OPTION_BLOCKING 0x01
128: #define BW_OPTION_REUSEBUFFERS 0x80
129:
130: #define BW_ERR_USR_HANGUP 50
131: #define BW_ERR_HANGUP 51
132: #define BW_ERR_NET_ERR 52
133: #define BW_ERR_IS_CLOSED 53
134: #define BW_ERR_TIME_OUT 54
135: #define BW_ERR_RESET 55
136: #define BW_ERR_FULL 56
137: #define BW_ERR_BLOCK 57
138: #define BW_ERR_SHUTDOWN 58
139:
140: #pragma pack(1)
141:
142: typedef struct
143: {
144: char state; // always 1
145: short localPort;
146: struct in_addr localAddr;
147: char reason; // always 0
148: char options;
149: short dataAvailable;
150: } BW_UDPinfo_t;
151:
152: typedef struct
153: {
154: char reserved1 [6];
155: unsigned short info2Offset;
156: char reserved2 [18];
157: struct in_addr remoteAddr;
158: } BW_UDPreadInfo1_t;
159:
160: typedef struct
161: {
162: short remotePort;
163: char reserved1 [2];
164: unsigned short dataLenPlus8;
165: char reserved2 [2];
166: char data[1]; // actual size is <dataLenPlus8> - 8
167: } BW_UDPreadInfo2_t;
168:
169: typedef struct
170: {
171: char reserved1 [2];
172: short remotePort;
173: unsigned short dataLen;
174: struct in_addr remoteAddr;
175: char reserved2 [42];
176: char data[1]; // actual size is <datalen>
177: } BW_writeInfo_t;
178:
179: typedef struct
180: {
181: short ioport;
182: byte dma;
183: byte vector;
184: byte irq;
185: short bufferSize;
186: short maxWindow;
187: short timeZone;
188: byte myType;
189: int inetAddr;
190: short value;
191: byte subnetMask;
192: short etherPointer;
193: short logserverPointer;
194: short nameserverPointer;
195: short printserverPointer;
196: short timeserverPointer;
197: short gatewayPointer;
198: short driverSegment;
199: byte transferSize;
200: char cardName [9];
201: } BW_ethdevinfo_t;
202:
203: #pragma pack()
204:
205: #define LOWMEM_SIZE 4096
206:
207: static unsigned char *lowmem_buffer;
208: static int lowmem_bufseg;
209: static int lowmem_bufoff;
210: static BW_ethdevinfo_t ethdevinfo;
211: static int netmask;
212: static struct in_addr bcastaddr;
213:
214: extern regs_t regs;
215:
216: static int net_acceptsocket = -1; // socket for fielding new connections
217: static int net_controlsocket = 0;
218:
219: #include "net_bw.h"
220:
221: //=============================================================================
222:
223: static int BW_ioctl(int s, char *msg, int msglen)
224: {
225: Q_memcpy(lowmem_buffer, msg, msglen);
226:
227: regs.x.ax = 0x4403;
228: regs.x.bx = s;
229: regs.x.cx = msglen;
230: regs.x.dx = lowmem_bufoff;
231: regs.x.ds = lowmem_bufseg;
232: if (dos_int86(0x21))
233: return regs.x.ax;
234: return 0;
235: }
236:
237: //=============================================================================
238:
239: static int BW_TranslateError(int error)
240: {
241: switch(error)
242: {
243: case BW_ERR_USR_HANGUP: return ECONNABORTED;
244: case BW_ERR_HANGUP: return EISCONN;
245: case BW_ERR_NET_ERR: return ENOTCONN;
246: case BW_ERR_IS_CLOSED: return ENOTCONN;
247: case BW_ERR_TIME_OUT: return ETIMEDOUT;
248: case BW_ERR_RESET: return ECONNREFUSED;
249: case BW_ERR_FULL: return ETOOMANYREFS;
250: case BW_ERR_BLOCK: return EWOULDBLOCK;
251: case BW_ERR_SHUTDOWN: return ESHUTDOWN;
252: }
253: return EIO;
254: }
255:
256: //=============================================================================
257:
258: static int GetEthdevinfo(void)
259: {
260: int fd;
261:
262: Q_strcpy((char *)lowmem_buffer, "ETHDEV27");
263: regs.x.ax = 0x3d42;
264: regs.x.ds = lowmem_bufseg;
265: regs.x.dx = lowmem_bufoff;
266: if (dos_int86(0x21))
267: return -1;
268: fd = regs.x.ax;
269:
270: regs.x.ax = 0x4401;
271: regs.x.bx = fd;
272: regs.x.dx = 0x60;
273: dos_int86(0x21);
274:
275: regs.h.ah = 0x3f;
276: regs.x.cx = sizeof(ethdevinfo);
277: regs.x.es = regs.x.ds = lowmem_bufseg;
278: regs.x.dx = lowmem_bufoff;
279: regs.x.bx = fd;
280: if (dos_int86(0x21))
281: return -1;
282: Q_memcpy(ðdevinfo, lowmem_buffer, regs.x.ax);
283:
284: regs.h.ah = 0x3e;
285: regs.x.bx = fd;
286: dos_int86(0x21);
287:
288: return 0;
289: }
290:
291: //=============================================================================
292:
293: int BW_Init(void)
294: {
295: struct qsockaddr addr;
296: char *colon;
297:
298: if (COM_CheckParm ("-noudp"))
299: return -1;
300:
301: lowmem_buffer = dos_getmemory(LOWMEM_SIZE);
302: if (!lowmem_buffer)
303: Sys_Error("not enough low memory\n");
304: lowmem_bufoff = ptr2real(lowmem_buffer) & 0xf;
305: lowmem_bufseg = ptr2real(lowmem_buffer) >> 4;
306:
307: if (GetEthdevinfo())
308: {
309: Con_DPrintf("Beame & Whiteside TCP/IP not detected\n");
310: dos_freememory(lowmem_buffer);
311: return -1;
312: }
313: netmask = 0xffffffff >> (32 - ethdevinfo.subnetMask);
314: bcastaddr.s_addr = (ethdevinfo.inetAddr & netmask) | (~netmask);
315:
316: if ((net_controlsocket = BW_OpenSocket (0)) == -1)
317: {
318: dos_freememory(lowmem_buffer);
319: Con_DPrintf ("BW_Init unable to open control socket; disabled\n");
320: return -1;
321: }
322:
323: BW_GetSocketAddr (net_controlsocket, &addr);
324: Q_strcpy(my_tcpip_address, BW_AddrToString (&addr));
325: colon = Q_strrchr (my_tcpip_address, ':');
326: if (colon)
327: *colon = 0;
328:
329: Con_Printf("BW_Init: UDP initialized\n");
330: tcpipAvailable = true;
331:
332: return net_controlsocket;
333: }
334:
335: //=============================================================================
336:
337: void BW_Shutdown(void)
338: {
339: BW_Listen (false);
340: BW_CloseSocket (net_controlsocket);
341: dos_freememory(lowmem_buffer);
342: }
343:
344: //=============================================================================
345:
346: void BW_Listen (qboolean state)
347: {
348: // enable listening
349: if (state)
350: {
351: if (net_acceptsocket != -1)
352: return;
353: if ((net_acceptsocket = BW_OpenSocket (net_hostport)) == -1)
354: Sys_Error ("BW_Listen: Unable to open accept socket\n");
355: return;
356: }
357:
358: // disable listening
359: if (net_acceptsocket == -1)
360: return;
361: BW_CloseSocket (net_acceptsocket);
362: net_acceptsocket = -1;
363: }
364:
365:
366: //=============================================================================
367:
368: /*
369: OpenSocket returns a handle to a network socket that has been opened,
370: set to nonblocking, and bound to <port>. Additional socket options
371: should be set here if they are needed. -1 is returned on failure.
372: */
373:
374: int BW_OpenSocket(int port)
375: {
376: int s;
377: int ret;
378: int deadman = 3 * 1024;
379: static int dynamic = 1024;
380: static char reuse_msg[2] = {BW_IOCTL_SETOPTIONS, BW_OPTION_REUSEBUFFERS};
381: static char bind_msg[3] = {BW_IOCTL_BIND, 0, 0};
382: static char nonblock_msg[2] = {BW_IOCTL_CLEAROPTIONS, BW_OPTION_BLOCKING};
383:
384: // allocate a UDP socket
385: Q_strcpy((char *)lowmem_buffer, "UDP-IP10");
386: regs.x.ax = 0x3d42;
387: regs.x.ds = lowmem_bufseg;
388: regs.x.dx = lowmem_bufoff;
389: if (dos_int86(0x21))
390: {
391: Con_Printf("BW_OpenSocket failed: %u\n", BW_TranslateError(regs.x.ax));
392: return -1;
393: }
394: s = regs.x.ax;
395:
396: // set file descriptor to raw mode
397: regs.x.ax = 0x4401;
398: regs.x.bx = s;
399: regs.x.dx = 0x60;
400: dos_int86(0x21);
401:
402: if (BW_ioctl(s, reuse_msg, 2))
403: {
404: Con_Printf("BW_OpenSocket ioctl(reuse) failed\n");
405: return -1;
406: }
407:
408: if (BW_ioctl(s, nonblock_msg, 2))
409: {
410: Con_Printf("BW_OpenSocket ioctl(nonblocking) failed\n");
411: return -1;
412: }
413:
414: // if a socket was specified, bind to it and return
415: if (port)
416: {
417: *(short *)&bind_msg[1] = port;
418: if (BW_ioctl(s, bind_msg, 3))
419: {
420: BW_CloseSocket(s);
421: return -1;
422: }
423: return s;
424: }
425:
426: // B&W does NOT do dynamic allocation, so if port == 0 we must fake it
427: do
428: {
429: port = dynamic++;
430: if (dynamic == 4096)
431: dynamic = 1024;
432: deadman--;
433: *(short *)&bind_msg[1] = port;
434: ret = BW_ioctl(s, bind_msg, 3);
435: }
436: while (ret && deadman);
437: if (ret)
438: return -1;
439: return s;
440: }
441:
442: //=============================================================================
443:
444: int BW_CloseSocket(int socket)
445: {
446: regs.h.ah = 0x3e;
447: regs.x.bx = socket;
448: if(dos_int86(0x21))
449: {
450: Con_Printf("BW_CloseSocket %u failed: %u\n", socket, BW_TranslateError(regs.x.ax));
451: return -1;
452: }
453: return 0;
454: }
455:
456: //=============================================================================
457:
458: int BW_Connect (int socket, struct qsockaddr *hostaddr)
459: {
460: return 0;
461: }
462:
463: //=============================================================================
464:
465: int BW_CheckNewConnections(void)
466: {
467: if (net_acceptsocket == 0)
468: return -1;
469:
470: // see if there's anything waiting
471: regs.x.ax = 0x4406;
472: regs.x.bx = net_acceptsocket;
473: dos_int86(0x21);
474: if (regs.x.ax == 0)
475: return -1;
476: return net_acceptsocket;
477: }
478:
479: //=============================================================================
480:
481: int BW_Read(int s, byte *buf, int len, struct qsockaddr *from)
482: {
483: BW_UDPreadInfo1_t *info1;
484: BW_UDPreadInfo2_t *info2;
485:
486: // ask if there's anything waiting
487: regs.x.ax = 0x4406;
488: regs.x.bx = s;
489: dos_int86(0x21);
490: if (regs.x.ax == 0)
491: return 0;
492:
493: // there was, so let's get it
494: regs.h.ah = 0x3f;
495: regs.x.cx = /* len + 53 */ LOWMEM_SIZE;
496: regs.x.es = regs.x.ds = lowmem_bufseg;
497: regs.x.dx = lowmem_bufoff;
498: regs.x.bx = s;
499: if (dos_int86(0x21))
500: {
501: Con_Printf("BW UDP read error: %u\n", BW_TranslateError(regs.x.ax));
502: return -1;
503: }
504:
505: info1 = (BW_UDPreadInfo1_t *)lowmem_buffer;
506: info2 = (BW_UDPreadInfo2_t *)(lowmem_buffer + info1->info2Offset);
507:
508: if (from)
509: {
510: from->sa_family = AF_INET;
511: ((struct sockaddr_in *)from)->sin_addr = info1->remoteAddr;
512: ((struct sockaddr_in *)from)->sin_port = htons(info2->remotePort);
513: }
514:
515: len = info2->dataLenPlus8 - 8;
516: if (len > NET_DATAGRAMSIZE)
517: {
518: Con_Printf("BW UDP read packet too large: %u\n", len);
519: return -1;
520: }
521: Q_memcpy(buf, info2->data, len);
522:
523: return len;
524: }
525:
526: //=============================================================================
527:
528: int BW_Broadcast(int s, byte *msg, int len)
529: {
530: BW_writeInfo_t *writeInfo;
531:
532: // ask if we're clear to send
533: regs.x.ax = 0x4407;
534: regs.x.bx = s;
535: dos_int86(0x21);
536: if (regs.x.ax == 0)
537: return 0;
538:
539: // yes, let's do it
540: writeInfo = (BW_writeInfo_t *)lowmem_buffer;
541: writeInfo->remoteAddr = bcastaddr;
542: writeInfo->remotePort = net_hostport;
543: writeInfo->dataLen = len;
544: if (len > NET_DATAGRAMSIZE)
545: Sys_Error("BW UDP write packet too large: %u\n", len);
546: Q_memcpy(writeInfo->data, msg, len);
547: writeInfo->data[len] = 0;
548: regs.h.ah = 0x40;
549: regs.x.bx = s;
550: regs.x.cx = len + sizeof(BW_writeInfo_t);
551: regs.x.es = regs.x.ds = lowmem_bufseg;
552: regs.x.dx = lowmem_bufoff;
553: if (dos_int86(0x21))
554: {
555: Con_Printf("BW_Broadcast failed: %u\n", BW_TranslateError(regs.x.ax));
556: return -1;
557: }
558:
559: return len;
560: }
561:
562: //=============================================================================
563:
564: int BW_Write(int s, byte *msg, int len, struct qsockaddr *to)
565: {
566: BW_writeInfo_t *writeInfo;
567:
568: // ask if we're clear to send
569: regs.x.ax = 0x4407;
570: regs.x.bx = s;
571: dos_int86(0x21);
572: if (regs.x.ax == 0)
573: return 0;
574:
575: // yes, let's do it
576: writeInfo = (BW_writeInfo_t *)lowmem_buffer;
577: writeInfo->remoteAddr = ((struct sockaddr_in *)to)->sin_addr;
578: writeInfo->remotePort = ntohs(((struct sockaddr_in *)to)->sin_port);
579: writeInfo->dataLen = len;
580: if (len > NET_DATAGRAMSIZE)
581: Sys_Error("BW UDP write packet too large: %u\n", len);
582: Q_memcpy(writeInfo->data, msg, len);
583: writeInfo->data[len] = 0;
584: regs.h.ah = 0x40;
585: regs.x.bx = s;
586: regs.x.cx = len + sizeof(BW_writeInfo_t);
587: regs.x.es = regs.x.ds = lowmem_bufseg;
588: regs.x.dx = lowmem_bufoff;
589: if (dos_int86(0x21))
590: {
591: Con_Printf("BW_Write failed: %u\n", BW_TranslateError(regs.x.ax));
592: return -1;
593: }
594:
595: return len;
596: }
597:
598: //=============================================================================
599:
600:
601: char *BW_AddrToString (struct qsockaddr *addr)
602: {
603: static char buffer[22];
604:
605: sprintf(buffer, "%d.%d.%d.%d:%d",
606: ((struct sockaddr_in *)addr)->sin_addr.s_net,
607: ((struct sockaddr_in *)addr)->sin_addr.s_host,
608: ((struct sockaddr_in *)addr)->sin_addr.s_lh,
609: ((struct sockaddr_in *)addr)->sin_addr.s_impno,
610: ntohs(((struct sockaddr_in *)addr)->sin_port)
611: );
612: return buffer;
613: }
614:
615: //=============================================================================
616:
617: int BW_StringToAddr (char *string, struct qsockaddr *addr)
618: {
619: int ha1, ha2, ha3, ha4, hp;
620: int ipaddr;
621:
622: sscanf(string, "%d.%d.%d.%d:%d", &ha1, &ha2, &ha3, &ha4, &hp);
623: ipaddr = (ha1 << 24) | (ha2 << 16) | (ha3 << 8) | ha4;
624:
625: addr->sa_family = AF_INET;
626: ((struct sockaddr_in *)addr)->sin_addr.s_addr = htonl(ipaddr);
627: ((struct sockaddr_in *)addr)->sin_port = htons((short)hp);
628: return 0;
629: }
630:
631: //=============================================================================
632:
633: int BW_GetSocketAddr (int socket, struct qsockaddr *addr)
634: {
635: regs.x.ax = 0x4402;
636: regs.x.bx = socket;
637: regs.x.cx = sizeof(BW_UDPinfo_t);
638: regs.x.dx = lowmem_bufoff;
639: regs.x.ds = lowmem_bufseg;
640: dos_int86(0x21);
641:
642: addr->sa_family = AF_INET;
643: ((struct sockaddr_in *)addr)->sin_addr.s_addr = ((BW_UDPinfo_t *)lowmem_buffer)->localAddr.s_addr;
644: ((struct sockaddr_in *)addr)->sin_port = htons(((BW_UDPinfo_t *)lowmem_buffer)->localPort);
645:
646: return 0;
647: }
648:
649: //=============================================================================
650:
651: int BW_GetNameFromAddr (struct qsockaddr *addr, char *name)
652: {
653: Q_strcpy(name, BW_AddrToString(addr));
654: return 0;
655: }
656:
657: ///=============================================================================
658:
659: int BW_GetAddrFromName (char *name, struct qsockaddr *hostaddr)
660: {
661: char buff[MAXHOSTNAMELEN];
662: char *b;
663: int addr;
664: int num;
665: int mask;
666: int run;
667: int port;
668:
669: if (name[0] < '0' || name[0] > '9')
670: return -1;
671:
672: buff[0] = '.';
673: b = buff;
674: Q_strcpy(buff+1, name);
675: if (buff[1] == '.')
676: b++;
677:
678: addr = 0;
679: mask = -1;
1.1.1.3 ! root 680: while (*b == '.')
1.1 root 681: {
1.1.1.3 ! root 682: b++;
1.1 root 683: num = 0;
684: run = 0;
685: while (!( *b < '0' || *b > '9'))
686: {
687: num = num*10 + *b++ - '0';
688: if (++run > 3)
689: return -1;
690: }
691: if ((*b < '0' || *b > '9') && *b != '.' && *b != ':' && *b != 0)
692: return -1;
693: if (num < 0 || num > 255)
694: return -1;
695: mask<<=8;
696: addr = (addr<<8) + num;
697: }
698: addr = htonl(addr);
699: mask = htonl(mask);
700:
701: if (*b++ == ':')
702: port = Q_atoi(b);
703: else
704: port = net_hostport;
705:
706: hostaddr->sa_family = AF_INET;
707: ((struct sockaddr_in *)hostaddr)->sin_port = htons((short)port);
708: ((struct sockaddr_in *)hostaddr)->sin_addr.s_addr =
709: ((ethdevinfo.inetAddr & mask) | addr);
710:
711: return 0;
712: }
713:
714: //=============================================================================
715:
716: int BW_AddrCompare (struct qsockaddr *addr1, struct qsockaddr *addr2)
717: {
718: if (addr1->sa_family != addr2->sa_family)
719: return -1;
720:
721: if (((struct sockaddr_in *)addr1)->sin_addr.s_addr != ((struct sockaddr_in *)addr2)->sin_addr.s_addr)
722: return -1;
723:
724: if (((struct sockaddr_in *)addr1)->sin_port != ((struct sockaddr_in *)addr2)->sin_port)
725: return 1;
726:
727: return 0;
728: }
729:
730: //=============================================================================
731:
732: int BW_GetSocketPort (struct qsockaddr *addr)
733: {
734: return ntohs(((struct sockaddr_in *)addr)->sin_port);
735: }
736:
737:
738: int BW_SetSocketPort (struct qsockaddr *addr, int port)
739: {
740: ((struct sockaddr_in *)addr)->sin_port = htons(port);
741: return 0;
742: }
743:
744: //=============================================================================
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