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"},
140 void WinPrint(char *str, ...);
142 void WinPrint(char *str, ...);
145 //===========================================================================
149 // Changes Globals: -
150 //===========================================================================
151 char *WINS_ErrorMessage(int error)
155 if (!error) return "No error occurred";
157 for (search = 0; errlist[search].errstr; search++)
159 if (error == errlist[search].errnum)
160 return errlist[search].errstr;
163 return "Unknown error";
164 } //end of the function WINS_ErrorMessage
165 //===========================================================================
169 // Changes Globals: -
170 //===========================================================================
174 struct hostent *local;
175 char buff[MAXHOSTNAMELEN];
176 struct sockaddr_s addr;
179 WORD wVersionRequested;
181 wVersionRequested = MAKEWORD(1, 1);
183 r = WSAStartup (wVersionRequested, &winsockdata);
187 WinPrint("Winsock initialization failed.\n");
192 i = COM_CheckParm ("-udpport");
194 net_hostport = DEFAULTnet_hostport;
196 else if (i < com_argc-1)
197 net_hostport = Q_atoi (com_argv[i+1]);
199 Sys_Error ("WINS_Init: you must specify a number after -udpport");
202 // determine my name & address
203 gethostname(buff, MAXHOSTNAMELEN);
204 local = gethostbyname(buff);
205 myAddr = *(int *)local->h_addr_list[0];
207 // if the quake hostname isn't set, set it to the machine name
208 // if (Q_strcmp(hostname.string, "UNNAMED") == 0)
210 // see if it's a text IP address (well, close enough)
211 for (p = buff; *p; p++)
212 if ((*p < '0' || *p > '9') && *p != '.')
215 // if it is a real name, strip off the domain; we only want the host
218 for (i = 0; i < 15; i++)
223 // Cvar_Set ("hostname", buff);
226 if ((net_controlsocket = WINS_OpenSocket (0)) == -1)
227 WinError("WINS_Init: Unable to open control socket\n");
229 ((struct sockaddr_in *)&broadcastaddr)->sin_family = AF_INET;
230 ((struct sockaddr_in *)&broadcastaddr)->sin_addr.s_addr = INADDR_BROADCAST;
231 ((struct sockaddr_in *)&broadcastaddr)->sin_port = htons((u_short)net_hostport);
233 WINS_GetSocketAddr (net_controlsocket, &addr);
234 strcpy(my_tcpip_address, WINS_AddrToString (&addr));
235 p = strrchr (my_tcpip_address, ':');
237 WinPrint("Winsock Initialized\n");
239 return net_controlsocket;
240 } //end of the function WINS_Init
241 //===========================================================================
245 // Changes Globals: -
246 //===========================================================================
247 char *WINS_MyAddress(void)
249 return my_tcpip_address;
250 } //end of the function WINS_MyAddress
251 //===========================================================================
255 // Changes Globals: -
256 //===========================================================================
257 void WINS_Shutdown(void)
260 WINS_CloseSocket(net_controlsocket);
263 //WinPrint("Winsock Shutdown\n");
264 } //end of the function WINS_Shutdown
265 //===========================================================================
269 // Changes Globals: -
270 //===========================================================================
272 void WINS_Listen(int state)
277 if (net_acceptsocket != -1)
279 if ((net_acceptsocket = WINS_OpenSocket (net_hostport)) == -1)
280 WinError ("WINS_Listen: Unable to open accept socket\n");
285 if (net_acceptsocket == -1)
287 WINS_CloseSocket (net_acceptsocket);
288 net_acceptsocket = -1;
289 } //end of the function WINS_Listen*/
290 //===========================================================================
294 // Changes Globals: -
295 //===========================================================================
296 int WINS_OpenSocket(int port)
299 struct sockaddr_in address;
302 if ((newsocket = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1)
304 WinPrint("WINS_OpenSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
308 if (ioctlsocket (newsocket, FIONBIO, &_true) == -1)
310 WinPrint("WINS_OpenSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
311 closesocket(newsocket);
315 memset((char *) &address, 0, sizeof(address));
316 address.sin_family = AF_INET;
317 address.sin_addr.s_addr = INADDR_ANY;
318 address.sin_port = htons((u_short)port);
319 if( bind (newsocket, (void *)&address, sizeof(address)) == -1)
321 WinPrint("WINS_OpenSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
322 closesocket(newsocket);
327 } //end of the function WINS_OpenSocket
328 //===========================================================================
332 // Changes Globals: -
333 //===========================================================================
334 int WINS_OpenReliableSocket(int port)
337 struct sockaddr_in address;
338 BOOL _true = 0xFFFFFFFF;
342 if ((newsocket = socket(AF_INET, SOCK_STREAM, 0)) == -1)
344 WinPrint("WINS_OpenReliableSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
348 memset((char *) &address, 0, sizeof(address));
349 address.sin_family = AF_INET;
350 address.sin_addr.s_addr = htonl(INADDR_ANY);
351 address.sin_port = htons((u_short)port);
352 if (bind(newsocket, (void *)&address, sizeof(address)) == -1)
354 WinPrint("WINS_OpenReliableSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
355 closesocket(newsocket);
360 if (setsockopt(newsocket, IPPROTO_TCP, TCP_NODELAY, (void *) &_true, sizeof(int)) == SOCKET_ERROR)
362 WinPrint("WINS_OpenReliableSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
363 WinPrint("setsockopt error\n");
367 } //end of the function WINS_OpenReliableSocket
368 //===========================================================================
372 // Changes Globals: -
373 //===========================================================================
374 int WINS_Listen(int socket)
378 if (ioctlsocket(socket, FIONBIO, &_true) == -1)
380 WinPrint("WINS_Listen: %s\n", WINS_ErrorMessage(WSAGetLastError()));
383 if (listen(socket, SOMAXCONN) == SOCKET_ERROR)
385 WinPrint("WINS_Listen: %s\n", WINS_ErrorMessage(WSAGetLastError()));
389 } //end of the function WINS_Listen
390 //===========================================================================
394 // Changes Globals: -
395 //===========================================================================
396 int WINS_Accept(int socket, struct sockaddr_s *addr)
398 int addrlen = sizeof (struct sockaddr_s);
402 newsocket = accept(socket, (struct sockaddr *)addr, &addrlen);
403 if (newsocket == INVALID_SOCKET)
405 if (WSAGetLastError() == WSAEWOULDBLOCK) return -1;
406 WinPrint("WINS_Accept: %s\n", WINS_ErrorMessage(WSAGetLastError()));
410 if (setsockopt(newsocket, IPPROTO_TCP, TCP_NODELAY, (void *) &_true, sizeof(int)) == SOCKET_ERROR)
412 WinPrint("WINS_Accept: %s\n", WINS_ErrorMessage(WSAGetLastError()));
413 WinPrint("setsockopt error\n");
416 } //end of the function WINS_Accept
417 //===========================================================================
421 // Changes Globals: -
422 //===========================================================================
423 int WINS_CloseSocket(int socket)
426 if (socket == net_broadcastsocket)
427 net_broadcastsocket = 0;
429 // shutdown(socket, SD_SEND);
431 if (closesocket(socket) == SOCKET_ERROR)
433 WinPrint("WINS_CloseSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
437 } //end of the function WINS_CloseSocket
438 //===========================================================================
439 // this lets you type only as much of the net address as required, using
440 // the local network components to fill in the rest
444 // Changes Globals: -
445 //===========================================================================
446 static int PartialIPAddress (char *in, struct sockaddr_s *hostaddr)
457 if (buff[1] == '.') b++;
464 if (*++b < '0' || *b > '9') return -1;
465 while (!( *b < '0' || *b > '9'))
466 num = num*10 + *(b++) - '0';
468 addr = (addr<<8) + num;
471 hostaddr->sa_family = AF_INET;
472 ((struct sockaddr_in *)hostaddr)->sin_port = htons((u_short)net_hostport);
473 ((struct sockaddr_in *)hostaddr)->sin_addr.s_addr = (myAddr & htonl(mask)) | htonl(addr);
476 } //end of the function PartialIPAddress
477 //===========================================================================
481 // Changes Globals: -
482 //===========================================================================
483 int WINS_Connect(int socket, struct sockaddr_s *addr)
486 u_long _true2 = 0xFFFFFFFF;
488 ret = connect(socket, (struct sockaddr *)addr, sizeof(struct sockaddr_s));
489 if (ret == SOCKET_ERROR)
491 WinPrint("WINS_Connect: %s\n", WINS_ErrorMessage(WSAGetLastError()));
494 if (ioctlsocket(socket, FIONBIO, &_true2) == -1)
496 WinPrint("WINS_Connect: %s\n", WINS_ErrorMessage(WSAGetLastError()));
500 } //end of the function WINS_Connect
501 //===========================================================================
505 // Changes Globals: -
506 //===========================================================================
507 int WINS_CheckNewConnections(void)
511 if (net_acceptsocket == -1)
514 if (recvfrom(net_acceptsocket, buf, 4, MSG_PEEK, NULL, NULL) > 0)
515 return net_acceptsocket;
517 } //end of the function WINS_CheckNewConnections
518 //===========================================================================
519 // returns the number of bytes read
520 // 0 if no bytes available
525 // Changes Globals: -
526 //===========================================================================
527 int WINS_Read(int socket, byte *buf, int len, struct sockaddr_s *addr)
529 int addrlen = sizeof (struct sockaddr_s);
534 ret = recvfrom(socket, buf, len, 0, (struct sockaddr *)addr, &addrlen);
537 errno = WSAGetLastError();
539 if (errno == WSAEWOULDBLOCK || errno == WSAECONNREFUSED)
545 ret = recv(socket, buf, len, 0);
546 if (ret == SOCKET_ERROR)
548 errno = WSAGetLastError();
550 if (errno == WSAEWOULDBLOCK || errno == WSAECONNREFUSED)
554 if (ret == SOCKET_ERROR)
556 WinPrint("WINS_Read: %s\n", WINS_ErrorMessage(WSAGetLastError()));
559 } //end of the function WINS_Read
560 //===========================================================================
564 // Changes Globals: -
565 //===========================================================================
566 int WINS_MakeSocketBroadcastCapable (int socket)
570 // make this socket broadcast capable
571 if (setsockopt(socket, SOL_SOCKET, SO_BROADCAST, (char *)&i, sizeof(i)) < 0)
573 net_broadcastsocket = socket;
576 } //end of the function WINS_MakeSocketBroadcastCapable
577 //===========================================================================
581 // Changes Globals: -
582 //===========================================================================
583 int WINS_Broadcast (int socket, byte *buf, int len)
587 if (socket != net_broadcastsocket)
589 if (net_broadcastsocket != 0)
590 WinError("Attempted to use multiple broadcasts sockets\n");
591 ret = WINS_MakeSocketBroadcastCapable (socket);
594 WinPrint("Unable to make socket broadcast capable\n");
599 return WINS_Write (socket, buf, len, &broadcastaddr);
600 } //end of the function WINS_Broadcast
601 //===========================================================================
602 // returns qtrue on success or qfalse on failure
606 // Changes Globals: -
607 //===========================================================================
608 int WINS_Write(int socket, byte *buf, int len, struct sockaddr_s *addr)
617 ret = sendto (socket, &buf[written], len-written, 0, (struct sockaddr *)addr, sizeof(struct sockaddr_s));
618 if (ret == SOCKET_ERROR)
620 if (WSAGetLastError() != WSAEWOULDBLOCK)
635 ret = send(socket, buf, len, 0);
636 if (ret == SOCKET_ERROR)
638 if (WSAGetLastError() != WSAEWOULDBLOCK)
648 if (ret == SOCKET_ERROR)
650 WinPrint("WINS_Write: %s\n", WINS_ErrorMessage(WSAGetLastError()));
653 } //end of the function WINS_Write
654 //===========================================================================
658 // Changes Globals: -
659 //===========================================================================
660 char *WINS_AddrToString (struct sockaddr_s *addr)
662 static char buffer[22];
665 haddr = ntohl(((struct sockaddr_in *)addr)->sin_addr.s_addr);
666 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));
668 } //end of the function WINS_AddrToString
669 //===========================================================================
673 // Changes Globals: -
674 //===========================================================================
675 int WINS_StringToAddr(char *string, struct sockaddr_s *addr)
677 int ha1, ha2, ha3, ha4, hp;
680 sscanf(string, "%d.%d.%d.%d:%d", &ha1, &ha2, &ha3, &ha4, &hp);
681 ipaddr = (ha1 << 24) | (ha2 << 16) | (ha3 << 8) | ha4;
683 addr->sa_family = AF_INET;
684 ((struct sockaddr_in *)addr)->sin_addr.s_addr = htonl(ipaddr);
685 ((struct sockaddr_in *)addr)->sin_port = htons((u_short)hp);
687 } //end of the function WINS_StringToAddr
688 //===========================================================================
692 // Changes Globals: -
693 //===========================================================================
694 int WINS_GetSocketAddr(int socket, struct sockaddr_s *addr)
696 int addrlen = sizeof(struct sockaddr_s);
699 memset(addr, 0, sizeof(struct sockaddr_s));
700 getsockname(socket, (struct sockaddr *)addr, &addrlen);
701 a = ((struct sockaddr_in *)addr)->sin_addr.s_addr;
702 if (a == 0 || a == inet_addr("127.0.0.1"))
703 ((struct sockaddr_in *)addr)->sin_addr.s_addr = myAddr;
706 } //end of the function WINS_GetSocketAddr
707 //===========================================================================
711 // Changes Globals: -
712 //===========================================================================
713 int WINS_GetNameFromAddr (struct sockaddr_s *addr, char *name)
715 struct hostent *hostentry;
717 hostentry = gethostbyaddr ((char *)&((struct sockaddr_in *)addr)->sin_addr, sizeof(struct in_addr), AF_INET);
720 strncpy (name, (char *)hostentry->h_name, NET_NAMELEN - 1);
724 strcpy (name, WINS_AddrToString (addr));
726 } //end of the function WINS_GetNameFromAddr
727 //===========================================================================
731 // Changes Globals: -
732 //===========================================================================
733 int WINS_GetAddrFromName(char *name, struct sockaddr_s *addr)
735 struct hostent *hostentry;
737 if (name[0] >= '0' && name[0] <= '9')
738 return PartialIPAddress (name, addr);
740 hostentry = gethostbyname (name);
744 addr->sa_family = AF_INET;
745 ((struct sockaddr_in *)addr)->sin_port = htons((u_short)net_hostport);
746 ((struct sockaddr_in *)addr)->sin_addr.s_addr = *(int *)hostentry->h_addr_list[0];
749 } //end of the function WINS_GetAddrFromName
750 //===========================================================================
754 // Changes Globals: -
755 //===========================================================================
756 int WINS_AddrCompare (struct sockaddr_s *addr1, struct sockaddr_s *addr2)
758 if (addr1->sa_family != addr2->sa_family)
761 if (((struct sockaddr_in *)addr1)->sin_addr.s_addr != ((struct sockaddr_in *)addr2)->sin_addr.s_addr)
764 if (((struct sockaddr_in *)addr1)->sin_port != ((struct sockaddr_in *)addr2)->sin_port)
768 } //end of the function WINS_AddrCompare
769 //===========================================================================
773 // Changes Globals: -
774 //===========================================================================
775 int WINS_GetSocketPort (struct sockaddr_s *addr)
777 return ntohs(((struct sockaddr_in *)addr)->sin_port);
778 } //end of the function WINS_GetSocketPort
779 //===========================================================================
783 // Changes Globals: -
784 //===========================================================================
785 int WINS_SetSocketPort (struct sockaddr_s *addr, int port)
787 ((struct sockaddr_in *)addr)->sin_port = htons((u_short)port);
789 } //end of the function WINS_SetSocketPort