2 Copyright (C) 1999-2006 Id Software, Inc. and contributors.
3 For a list of contributors, see the accompanying CONTRIBUTORS file.
5 This file is part of GtkRadiant.
7 GtkRadiant is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 GtkRadiant is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GtkRadiant; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 //===========================================================================
26 // Programmer: MrElusive
30 //===========================================================================
37 #include "l_net_wins.h"
38 //#include <winsock.h>
39 //#include "mpdosock.h"
41 #define WinError WinPrint
46 typedef struct tag_error_struct
52 #define NET_NAMELEN 64
54 char my_tcpip_address[NET_NAMELEN];
56 #define DEFAULTnet_hostport 26000
58 #define MAXHOSTNAMELEN 256
60 static int net_acceptsocket = -1; // socket for fielding new connections
61 static int net_controlsocket;
62 static int net_hostport; // udp port number for acceptsocket
63 static int net_broadcastsocket = 0;
64 //static qboolean ifbcastinit = qfalse;
65 static struct sockaddr_s broadcastaddr;
67 static unsigned long myAddr;
71 ERROR_STRUCT errlist[] = {
72 {WSAEINTR, "WSAEINTR - Interrupted"},
73 {WSAEBADF, "WSAEBADF - Bad file number"},
74 {WSAEFAULT, "WSAEFAULT - Bad address"},
75 {WSAEINVAL, "WSAEINVAL - Invalid argument"},
76 {WSAEMFILE, "WSAEMFILE - Too many open files"},
79 * Windows Sockets definitions of regular Berkeley error constants
82 {WSAEWOULDBLOCK, "WSAEWOULDBLOCK - Socket marked as non-blocking"},
83 {WSAEINPROGRESS, "WSAEINPROGRESS - Blocking call in progress"},
84 {WSAEALREADY, "WSAEALREADY - Command already completed"},
85 {WSAENOTSOCK, "WSAENOTSOCK - Descriptor is not a socket"},
86 {WSAEDESTADDRREQ, "WSAEDESTADDRREQ - Destination address required"},
87 {WSAEMSGSIZE, "WSAEMSGSIZE - Data size too large"},
88 {WSAEPROTOTYPE, "WSAEPROTOTYPE - Protocol is of wrong type for this socket"},
89 {WSAENOPROTOOPT, "WSAENOPROTOOPT - Protocol option not supported for this socket type"},
90 {WSAEPROTONOSUPPORT, "WSAEPROTONOSUPPORT - Protocol is not supported"},
91 {WSAESOCKTNOSUPPORT, "WSAESOCKTNOSUPPORT - Socket type not supported by this address family"},
92 {WSAEOPNOTSUPP, "WSAEOPNOTSUPP - Option not supported"},
93 {WSAEPFNOSUPPORT, "WSAEPFNOSUPPORT - "},
94 {WSAEAFNOSUPPORT, "WSAEAFNOSUPPORT - Address family not supported by this protocol"},
95 {WSAEADDRINUSE, "WSAEADDRINUSE - Address is in use"},
96 {WSAEADDRNOTAVAIL, "WSAEADDRNOTAVAIL - Address not available from local machine"},
97 {WSAENETDOWN, "WSAENETDOWN - Network subsystem is down"},
98 {WSAENETUNREACH, "WSAENETUNREACH - Network cannot be reached"},
99 {WSAENETRESET, "WSAENETRESET - Connection has been dropped"},
100 {WSAECONNABORTED, "WSAECONNABORTED - Connection aborted"},
101 {WSAECONNRESET, "WSAECONNRESET - Connection reset"},
102 {WSAENOBUFS, "WSAENOBUFS - No buffer space available"},
103 {WSAEISCONN, "WSAEISCONN - Socket is already connected"},
104 {WSAENOTCONN, "WSAENOTCONN - Socket is not connected"},
105 {WSAESHUTDOWN, "WSAESHUTDOWN - Socket has been shut down"},
106 {WSAETOOMANYREFS, "WSAETOOMANYREFS - Too many references"},
107 {WSAETIMEDOUT, "WSAETIMEDOUT - Command timed out"},
108 {WSAECONNREFUSED, "WSAECONNREFUSED - Connection refused"},
109 {WSAELOOP, "WSAELOOP - "},
110 {WSAENAMETOOLONG, "WSAENAMETOOLONG - "},
111 {WSAEHOSTDOWN, "WSAEHOSTDOWN - Host is down"},
112 {WSAEHOSTUNREACH, "WSAEHOSTUNREACH - "},
113 {WSAENOTEMPTY, "WSAENOTEMPTY - "},
114 {WSAEPROCLIM, "WSAEPROCLIM - "},
115 {WSAEUSERS, "WSAEUSERS - "},
116 {WSAEDQUOT, "WSAEDQUOT - "},
117 {WSAESTALE, "WSAESTALE - "},
118 {WSAEREMOTE, "WSAEREMOTE - "},
121 * Extended Windows Sockets error constant definitions
124 {WSASYSNOTREADY, "WSASYSNOTREADY - Network subsystem not ready"},
125 {WSAVERNOTSUPPORTED, "WSAVERNOTSUPPORTED - Version not supported"},
126 {WSANOTINITIALISED, "WSANOTINITIALISED - WSAStartup() has not been successfully called"},
129 * Other error constants.
132 {WSAHOST_NOT_FOUND, "WSAHOST_NOT_FOUND - Host not found"},
133 {WSATRY_AGAIN, "WSATRY_AGAIN - Host not found or SERVERFAIL"},
134 {WSANO_RECOVERY, "WSANO_RECOVERY - Non-recoverable error"},
135 {WSANO_DATA, "WSANO_DATA - (or WSANO_ADDRESS) - No data record of requested type"},
139 //===========================================================================
143 // Changes Globals: -
144 //===========================================================================
145 const char *WINS_ErrorMessage(int error)
149 if (!error) return "No error occurred";
151 for (search = 0; errlist[search].errstr; search++)
153 if (error == errlist[search].errnum)
154 return errlist[search].errstr;
157 return "Unknown error";
158 } //end of the function WINS_ErrorMessage
159 //===========================================================================
163 // Changes Globals: -
164 //===========================================================================
168 struct hostent *local;
169 char buff[MAXHOSTNAMELEN];
170 struct sockaddr_s addr;
173 WORD wVersionRequested;
175 wVersionRequested = MAKEWORD(1, 1);
177 r = WSAStartup (wVersionRequested, &winsockdata);
181 WinPrint("Winsock initialization failed.\n");
186 i = COM_CheckParm ("-udpport");
188 net_hostport = DEFAULTnet_hostport;
190 else if (i < com_argc-1)
191 net_hostport = Q_atoi (com_argv[i+1]);
193 Sys_Error ("WINS_Init: you must specify a number after -udpport");
196 // determine my name & address
197 gethostname(buff, MAXHOSTNAMELEN);
198 local = gethostbyname(buff);
199 myAddr = *(int *)local->h_addr_list[0];
201 // if the quake hostname isn't set, set it to the machine name
202 // if (Q_strcmp(hostname.string, "UNNAMED") == 0)
204 // see if it's a text IP address (well, close enough)
205 for (p = buff; *p; p++)
206 if ((*p < '0' || *p > '9') && *p != '.')
209 // if it is a real name, strip off the domain; we only want the host
212 for (i = 0; i < 15; i++)
217 // Cvar_Set ("hostname", buff);
220 if ((net_controlsocket = WINS_OpenSocket (0)) == -1)
221 WinError("WINS_Init: Unable to open control socket\n");
223 ((struct sockaddr_in *)&broadcastaddr)->sin_family = AF_INET;
224 ((struct sockaddr_in *)&broadcastaddr)->sin_addr.s_addr = INADDR_BROADCAST;
225 ((struct sockaddr_in *)&broadcastaddr)->sin_port = htons((u_short)net_hostport);
227 WINS_GetSocketAddr (net_controlsocket, &addr);
228 strcpy(my_tcpip_address, WINS_AddrToString (&addr));
229 p = strrchr (my_tcpip_address, ':');
231 WinPrint("Winsock Initialized\n");
233 return net_controlsocket;
234 } //end of the function WINS_Init
235 //===========================================================================
239 // Changes Globals: -
240 //===========================================================================
241 char *WINS_MyAddress(void)
243 return my_tcpip_address;
244 } //end of the function WINS_MyAddress
245 //===========================================================================
249 // Changes Globals: -
250 //===========================================================================
251 void WINS_Shutdown(void)
254 WINS_CloseSocket(net_controlsocket);
257 //WinPrint("Winsock Shutdown\n");
258 } //end of the function WINS_Shutdown
259 //===========================================================================
263 // Changes Globals: -
264 //===========================================================================
266 void WINS_Listen(int state)
271 if (net_acceptsocket != -1)
273 if ((net_acceptsocket = WINS_OpenSocket (net_hostport)) == -1)
274 WinError ("WINS_Listen: Unable to open accept socket\n");
279 if (net_acceptsocket == -1)
281 WINS_CloseSocket (net_acceptsocket);
282 net_acceptsocket = -1;
283 } //end of the function WINS_Listen*/
284 //===========================================================================
288 // Changes Globals: -
289 //===========================================================================
290 int WINS_OpenSocket(int port)
293 struct sockaddr_in address;
296 if ((newsocket = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1)
298 WinPrint("WINS_OpenSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
302 if (ioctlsocket (newsocket, FIONBIO, &_true) == -1)
304 WinPrint("WINS_OpenSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
305 closesocket(newsocket);
309 memset((char *) &address, 0, sizeof(address));
310 address.sin_family = AF_INET;
311 address.sin_addr.s_addr = INADDR_ANY;
312 address.sin_port = htons((u_short)port);
313 if( bind (newsocket, (void *)&address, sizeof(address)) == -1)
315 WinPrint("WINS_OpenSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
316 closesocket(newsocket);
321 } //end of the function WINS_OpenSocket
322 //===========================================================================
326 // Changes Globals: -
327 //===========================================================================
328 int WINS_OpenReliableSocket(int port)
331 struct sockaddr_in address;
332 BOOL _true = 0xFFFFFFFF;
336 if ((newsocket = socket(AF_INET, SOCK_STREAM, 0)) == -1)
338 WinPrint("WINS_OpenReliableSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
342 memset((char *) &address, 0, sizeof(address));
343 address.sin_family = AF_INET;
344 address.sin_addr.s_addr = htonl(INADDR_ANY);
345 address.sin_port = htons((u_short)port);
346 if (bind(newsocket, (void *)&address, sizeof(address)) == -1)
348 WinPrint("WINS_OpenReliableSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
349 closesocket(newsocket);
354 if (setsockopt(newsocket, IPPROTO_TCP, TCP_NODELAY, (void *) &_true, sizeof(int)) == SOCKET_ERROR)
356 WinPrint("WINS_OpenReliableSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
357 WinPrint("setsockopt error\n");
361 } //end of the function WINS_OpenReliableSocket
362 //===========================================================================
366 // Changes Globals: -
367 //===========================================================================
368 int WINS_Listen(int socket)
372 if (ioctlsocket(socket, FIONBIO, &_true) == -1)
374 WinPrint("WINS_Listen: %s\n", WINS_ErrorMessage(WSAGetLastError()));
377 if (listen(socket, SOMAXCONN) == SOCKET_ERROR)
379 WinPrint("WINS_Listen: %s\n", WINS_ErrorMessage(WSAGetLastError()));
383 } //end of the function WINS_Listen
384 //===========================================================================
388 // Changes Globals: -
389 //===========================================================================
390 int WINS_Accept(int socket, struct sockaddr_s *addr)
392 int addrlen = sizeof (struct sockaddr_s);
396 newsocket = accept(socket, (struct sockaddr *)addr, &addrlen);
397 if (newsocket == INVALID_SOCKET)
399 if (WSAGetLastError() == WSAEWOULDBLOCK) return -1;
400 WinPrint("WINS_Accept: %s\n", WINS_ErrorMessage(WSAGetLastError()));
404 if (setsockopt(newsocket, IPPROTO_TCP, TCP_NODELAY, (void *) &_true, sizeof(int)) == SOCKET_ERROR)
406 WinPrint("WINS_Accept: %s\n", WINS_ErrorMessage(WSAGetLastError()));
407 WinPrint("setsockopt error\n");
410 } //end of the function WINS_Accept
411 //===========================================================================
415 // Changes Globals: -
416 //===========================================================================
417 int WINS_CloseSocket(int socket)
420 if (socket == net_broadcastsocket)
421 net_broadcastsocket = 0;
423 // shutdown(socket, SD_SEND);
425 if (closesocket(socket) == SOCKET_ERROR)
427 WinPrint("WINS_CloseSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
431 } //end of the function WINS_CloseSocket
432 //===========================================================================
433 // this lets you type only as much of the net address as required, using
434 // the local network components to fill in the rest
438 // Changes Globals: -
439 //===========================================================================
440 static int PartialIPAddress (char *in, struct sockaddr_s *hostaddr)
451 if (buff[1] == '.') b++;
458 if (*++b < '0' || *b > '9') return -1;
459 while (!( *b < '0' || *b > '9'))
460 num = num*10 + *(b++) - '0';
462 addr = (addr<<8) + num;
465 hostaddr->sa_family = AF_INET;
466 ((struct sockaddr_in *)hostaddr)->sin_port = htons((u_short)net_hostport);
467 ((struct sockaddr_in *)hostaddr)->sin_addr.s_addr = (myAddr & htonl(mask)) | htonl(addr);
470 } //end of the function PartialIPAddress
471 //===========================================================================
475 // Changes Globals: -
476 //===========================================================================
477 int WINS_Connect(int socket, struct sockaddr_s *addr)
480 u_long _true2 = 0xFFFFFFFF;
482 ret = connect(socket, (struct sockaddr *)addr, sizeof(struct sockaddr_s));
483 if (ret == SOCKET_ERROR)
485 WinPrint("WINS_Connect: %s\n", WINS_ErrorMessage(WSAGetLastError()));
488 if (ioctlsocket(socket, FIONBIO, &_true2) == -1)
490 WinPrint("WINS_Connect: %s\n", WINS_ErrorMessage(WSAGetLastError()));
494 } //end of the function WINS_Connect
495 //===========================================================================
499 // Changes Globals: -
500 //===========================================================================
501 int WINS_CheckNewConnections(void)
505 if (net_acceptsocket == -1)
508 if (recvfrom(net_acceptsocket, buf, 4, MSG_PEEK, NULL, NULL) > 0)
509 return net_acceptsocket;
511 } //end of the function WINS_CheckNewConnections
512 //===========================================================================
513 // returns the number of bytes read
514 // 0 if no bytes available
519 // Changes Globals: -
520 //===========================================================================
521 int WINS_Read(int socket, byte *buf, int len, struct sockaddr_s *addr)
523 int addrlen = sizeof (struct sockaddr_s);
528 ret = recvfrom(socket, buf, len, 0, (struct sockaddr *)addr, &addrlen);
531 errno = WSAGetLastError();
533 if (errno == WSAEWOULDBLOCK || errno == WSAECONNREFUSED)
539 ret = recv(socket, buf, len, 0);
540 if (ret == SOCKET_ERROR)
542 errno = WSAGetLastError();
544 if (errno == WSAEWOULDBLOCK || errno == WSAECONNREFUSED)
548 if (ret == SOCKET_ERROR)
550 WinPrint("WINS_Read: %s\n", WINS_ErrorMessage(WSAGetLastError()));
553 } //end of the function WINS_Read
554 //===========================================================================
558 // Changes Globals: -
559 //===========================================================================
560 int WINS_MakeSocketBroadcastCapable (int socket)
564 // make this socket broadcast capable
565 if (setsockopt(socket, SOL_SOCKET, SO_BROADCAST, (char *)&i, sizeof(i)) < 0)
567 net_broadcastsocket = socket;
570 } //end of the function WINS_MakeSocketBroadcastCapable
571 //===========================================================================
575 // Changes Globals: -
576 //===========================================================================
577 int WINS_Broadcast (int socket, byte *buf, int len)
581 if (socket != net_broadcastsocket)
583 if (net_broadcastsocket != 0)
584 WinError("Attempted to use multiple broadcasts sockets\n");
585 ret = WINS_MakeSocketBroadcastCapable (socket);
588 WinPrint("Unable to make socket broadcast capable\n");
593 return WINS_Write (socket, buf, len, &broadcastaddr);
594 } //end of the function WINS_Broadcast
595 //===========================================================================
596 // returns qtrue on success or qfalse on failure
600 // Changes Globals: -
601 //===========================================================================
602 int WINS_Write(int socket, byte *buf, int len, struct sockaddr_s *addr)
611 ret = sendto (socket, &buf[written], len-written, 0, (struct sockaddr *)addr, sizeof(struct sockaddr_s));
612 if (ret == SOCKET_ERROR)
614 if (WSAGetLastError() != WSAEWOULDBLOCK)
629 ret = send(socket, buf, len, 0);
630 if (ret == SOCKET_ERROR)
632 if (WSAGetLastError() != WSAEWOULDBLOCK)
642 if (ret == SOCKET_ERROR)
644 WinPrint("WINS_Write: %s\n", WINS_ErrorMessage(WSAGetLastError()));
647 } //end of the function WINS_Write
648 //===========================================================================
652 // Changes Globals: -
653 //===========================================================================
654 char *WINS_AddrToString (struct sockaddr_s *addr)
656 static char buffer[22];
659 haddr = ntohl(((struct sockaddr_in *)addr)->sin_addr.s_addr);
660 sprintf(buffer, "%d.%d.%d.%d:%d", (haddr >> 24) & 0xff, (haddr >> 16) & 0xff, (haddr >> 8) & 0xff, haddr & 0xff, ntohs(((struct sockaddr_in *)addr)->sin_port));
662 } //end of the function WINS_AddrToString
663 //===========================================================================
667 // Changes Globals: -
668 //===========================================================================
669 int WINS_StringToAddr(char *string, struct sockaddr_s *addr)
671 int ha1, ha2, ha3, ha4, hp;
674 sscanf(string, "%d.%d.%d.%d:%d", &ha1, &ha2, &ha3, &ha4, &hp);
675 ipaddr = (ha1 << 24) | (ha2 << 16) | (ha3 << 8) | ha4;
677 addr->sa_family = AF_INET;
678 ((struct sockaddr_in *)addr)->sin_addr.s_addr = htonl(ipaddr);
679 ((struct sockaddr_in *)addr)->sin_port = htons((u_short)hp);
681 } //end of the function WINS_StringToAddr
682 //===========================================================================
686 // Changes Globals: -
687 //===========================================================================
688 int WINS_GetSocketAddr(int socket, struct sockaddr_s *addr)
690 int addrlen = sizeof(struct sockaddr_s);
693 memset(addr, 0, sizeof(struct sockaddr_s));
694 getsockname(socket, (struct sockaddr *)addr, &addrlen);
695 a = ((struct sockaddr_in *)addr)->sin_addr.s_addr;
696 if (a == 0 || a == inet_addr("127.0.0.1"))
697 ((struct sockaddr_in *)addr)->sin_addr.s_addr = myAddr;
700 } //end of the function WINS_GetSocketAddr
701 //===========================================================================
705 // Changes Globals: -
706 //===========================================================================
707 int WINS_GetNameFromAddr (struct sockaddr_s *addr, char *name)
709 struct hostent *hostentry;
711 hostentry = gethostbyaddr ((char *)&((struct sockaddr_in *)addr)->sin_addr, sizeof(struct in_addr), AF_INET);
714 strncpy (name, (char *)hostentry->h_name, NET_NAMELEN - 1);
718 strcpy (name, WINS_AddrToString (addr));
720 } //end of the function WINS_GetNameFromAddr
721 //===========================================================================
725 // Changes Globals: -
726 //===========================================================================
727 int WINS_GetAddrFromName(char *name, struct sockaddr_s *addr)
729 struct hostent *hostentry;
731 if (name[0] >= '0' && name[0] <= '9')
732 return PartialIPAddress (name, addr);
734 hostentry = gethostbyname (name);
738 addr->sa_family = AF_INET;
739 ((struct sockaddr_in *)addr)->sin_port = htons((u_short)net_hostport);
740 ((struct sockaddr_in *)addr)->sin_addr.s_addr = *(int *)hostentry->h_addr_list[0];
743 } //end of the function WINS_GetAddrFromName
744 //===========================================================================
748 // Changes Globals: -
749 //===========================================================================
750 int WINS_AddrCompare (struct sockaddr_s *addr1, struct sockaddr_s *addr2)
752 if (addr1->sa_family != addr2->sa_family)
755 if (((struct sockaddr_in *)addr1)->sin_addr.s_addr != ((struct sockaddr_in *)addr2)->sin_addr.s_addr)
758 if (((struct sockaddr_in *)addr1)->sin_port != ((struct sockaddr_in *)addr2)->sin_port)
762 } //end of the function WINS_AddrCompare
763 //===========================================================================
767 // Changes Globals: -
768 //===========================================================================
769 int WINS_GetSocketPort (struct sockaddr_s *addr)
771 return ntohs(((struct sockaddr_in *)addr)->sin_port);
772 } //end of the function WINS_GetSocketPort
773 //===========================================================================
777 // Changes Globals: -
778 //===========================================================================
779 int WINS_SetSocketPort (struct sockaddr_s *addr, int port)
781 ((struct sockaddr_in *)addr)->sin_port = htons((u_short)port);
783 } //end of the function WINS_SetSocketPort