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 return "No error occurred";
152 for ( search = 0; errlist[search].errstr; search++ )
154 if ( error == errlist[search].errnum ) {
155 return errlist[search].errstr;
159 return "Unknown error";
160 } //end of the function WINS_ErrorMessage
161 //===========================================================================
165 // Changes Globals: -
166 //===========================================================================
167 int WINS_Init( void ){
169 struct hostent *local;
170 char buff[MAXHOSTNAMELEN];
171 struct sockaddr_s addr;
174 WORD wVersionRequested;
176 wVersionRequested = MAKEWORD( 1, 1 );
178 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 if(local && local->h_addr_list && local->h_addr_list[0])
200 myAddr = *(int *)local->h_addr_list[0];
202 myAddr = inet_addr("127.0.0.1");
204 // if the quake hostname isn't set, set it to the machine name
205 // if (Q_strcmp(hostname.string, "UNNAMED") == 0)
207 // see if it's a text IP address (well, close enough)
208 for ( p = buff; *p; p++ )
209 if ( ( *p < '0' || *p > '9' ) && *p != '.' ) {
213 // if it is a real name, strip off the domain; we only want the host
215 for ( i = 0; i < 15; i++ )
216 if ( buff[i] == '.' ) {
221 // Cvar_Set ("hostname", buff);
224 if ( ( net_controlsocket = WINS_OpenSocket( 0 ) ) == -1 ) {
225 WinError( "WINS_Init: Unable to open control socket\n" );
228 ( (struct sockaddr_in *)&broadcastaddr )->sin_family = AF_INET;
229 ( (struct sockaddr_in *)&broadcastaddr )->sin_addr.s_addr = INADDR_BROADCAST;
230 ( (struct sockaddr_in *)&broadcastaddr )->sin_port = htons( (u_short)net_hostport );
232 WINS_GetSocketAddr( net_controlsocket, &addr );
233 strcpy( my_tcpip_address, WINS_AddrToString( &addr ) );
234 p = strrchr( my_tcpip_address, ':' );
238 WinPrint( "Winsock Initialized\n" );
240 return net_controlsocket;
241 } //end of the function WINS_Init
242 //===========================================================================
246 // Changes Globals: -
247 //===========================================================================
248 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 ){
259 WINS_CloseSocket( net_controlsocket );
262 //WinPrint("Winsock Shutdown\n");
263 } //end of the function WINS_Shutdown
264 //===========================================================================
268 // Changes Globals: -
269 //===========================================================================
271 void WINS_Listen(int state)
276 if (net_acceptsocket != -1)
278 if ((net_acceptsocket = WINS_OpenSocket (net_hostport)) == -1)
279 WinError ("WINS_Listen: Unable to open accept socket\n");
284 if (net_acceptsocket == -1)
286 WINS_CloseSocket (net_acceptsocket);
287 net_acceptsocket = -1;
288 } //end of the function WINS_Listen*/
289 //===========================================================================
293 // Changes Globals: -
294 //===========================================================================
295 int WINS_OpenSocket( int port ){
297 struct sockaddr_in address;
300 if ( ( newsocket = socket( PF_INET, SOCK_DGRAM, IPPROTO_UDP ) ) == -1 ) {
301 WinPrint( "WINS_OpenSocket: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
305 if ( ioctlsocket( newsocket, FIONBIO, &_true ) == -1 ) {
306 WinPrint( "WINS_OpenSocket: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
307 closesocket( newsocket );
311 memset( (char *) &address, 0, sizeof( address ) );
312 address.sin_family = AF_INET;
313 address.sin_addr.s_addr = INADDR_ANY;
314 address.sin_port = htons( (u_short)port );
315 if ( bind( newsocket, (void *)&address, sizeof( address ) ) == -1 ) {
316 WinPrint( "WINS_OpenSocket: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
317 closesocket( newsocket );
322 } //end of the function WINS_OpenSocket
323 //===========================================================================
327 // Changes Globals: -
328 //===========================================================================
329 int WINS_OpenReliableSocket( int port ){
331 struct sockaddr_in address;
332 BOOL _true = 0xFFFFFFFF;
336 if ( ( newsocket = socket( AF_INET, SOCK_STREAM, 0 ) ) == -1 ) {
337 WinPrint( "WINS_OpenReliableSocket: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
341 memset( (char *) &address, 0, sizeof( address ) );
342 address.sin_family = AF_INET;
343 address.sin_addr.s_addr = htonl( INADDR_ANY );
344 address.sin_port = htons( (u_short)port );
345 if ( bind( newsocket, (void *)&address, sizeof( address ) ) == -1 ) {
346 WinPrint( "WINS_OpenReliableSocket: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
347 closesocket( newsocket );
352 if ( setsockopt( newsocket, IPPROTO_TCP, TCP_NODELAY, (void *) &_true, sizeof( int ) ) == SOCKET_ERROR ) {
353 WinPrint( "WINS_OpenReliableSocket: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
354 WinPrint( "setsockopt error\n" );
358 } //end of the function WINS_OpenReliableSocket
359 //===========================================================================
363 // Changes Globals: -
364 //===========================================================================
365 int WINS_Listen( int socket ){
368 if ( ioctlsocket( socket, FIONBIO, &_true ) == -1 ) {
369 WinPrint( "WINS_Listen: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
372 if ( listen( socket, SOMAXCONN ) == SOCKET_ERROR ) {
373 WinPrint( "WINS_Listen: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
377 } //end of the function WINS_Listen
378 //===========================================================================
382 // Changes Globals: -
383 //===========================================================================
384 int WINS_Accept( int socket, struct sockaddr_s *addr ){
385 int addrlen = sizeof( struct sockaddr_s );
389 newsocket = accept( socket, (struct sockaddr *)addr, &addrlen );
390 if ( newsocket == INVALID_SOCKET ) {
391 if ( WSAGetLastError() == WSAEWOULDBLOCK ) {
394 WinPrint( "WINS_Accept: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
398 if ( setsockopt( newsocket, IPPROTO_TCP, TCP_NODELAY, (void *) &_true, sizeof( int ) ) == SOCKET_ERROR ) {
399 WinPrint( "WINS_Accept: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
400 WinPrint( "setsockopt error\n" );
403 } //end of the function WINS_Accept
404 //===========================================================================
408 // Changes Globals: -
409 //===========================================================================
410 int WINS_CloseSocket( int socket ){
412 if (socket == net_broadcastsocket)
413 net_broadcastsocket = 0;
415 // shutdown(socket, SD_SEND);
417 if ( closesocket( socket ) == SOCKET_ERROR ) {
418 WinPrint( "WINS_CloseSocket: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
422 } //end of the function WINS_CloseSocket
423 //===========================================================================
424 // this lets you type only as much of the net address as required, using
425 // the local network components to fill in the rest
429 // Changes Globals: -
430 //===========================================================================
431 static int PartialIPAddress( char *in, struct sockaddr_s *hostaddr ){
440 strcpy( buff + 1, in );
441 if ( buff[1] == '.' ) {
450 if ( *++b < '0' || *b > '9' ) {
453 while ( !( *b < '0' || *b > '9' ) )
454 num = num * 10 + *( b++ ) - '0';
456 addr = ( addr << 8 ) + num;
459 hostaddr->sa_family = AF_INET;
460 ( (struct sockaddr_in *)hostaddr )->sin_port = htons( (u_short)net_hostport );
461 ( (struct sockaddr_in *)hostaddr )->sin_addr.s_addr = ( myAddr & htonl( mask ) ) | htonl( addr );
464 } //end of the function PartialIPAddress
465 //===========================================================================
469 // Changes Globals: -
470 //===========================================================================
471 int WINS_Connect( int socket, struct sockaddr_s *addr ){
473 u_long _true2 = 0xFFFFFFFF;
475 ret = connect( socket, (struct sockaddr *)addr, sizeof( struct sockaddr_s ) );
476 if ( ret == SOCKET_ERROR ) {
477 WinPrint( "WINS_Connect: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
480 if ( ioctlsocket( socket, FIONBIO, &_true2 ) == -1 ) {
481 WinPrint( "WINS_Connect: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
485 } //end of the function WINS_Connect
486 //===========================================================================
490 // Changes Globals: -
491 //===========================================================================
492 int WINS_CheckNewConnections( void ){
495 if ( net_acceptsocket == -1 ) {
499 if ( recvfrom( net_acceptsocket, buf, 4, MSG_PEEK, NULL, NULL ) > 0 ) {
500 return net_acceptsocket;
503 } //end of the function WINS_CheckNewConnections
504 //===========================================================================
505 // returns the number of bytes read
506 // 0 if no bytes available
511 // Changes Globals: -
512 //===========================================================================
513 int WINS_Read( int socket, byte *buf, int len, struct sockaddr_s *addr ){
514 int addrlen = sizeof( struct sockaddr_s );
518 ret = recvfrom( socket, buf, len, 0, (struct sockaddr *)addr, &addrlen );
520 errno = WSAGetLastError();
522 if ( errno == WSAEWOULDBLOCK || errno == WSAECONNREFUSED ) {
529 ret = recv( socket, buf, len, 0 );
530 if ( ret == SOCKET_ERROR ) {
531 errno = WSAGetLastError();
533 if ( errno == WSAEWOULDBLOCK || errno == WSAECONNREFUSED ) {
538 if ( ret == SOCKET_ERROR ) {
539 WinPrint( "WINS_Read: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
542 } //end of the function WINS_Read
543 //===========================================================================
547 // Changes Globals: -
548 //===========================================================================
549 int WINS_MakeSocketBroadcastCapable( int socket ){
552 // make this socket broadcast capable
553 if ( setsockopt( socket, SOL_SOCKET, SO_BROADCAST, (char *)&i, sizeof( i ) ) < 0 ) {
556 net_broadcastsocket = socket;
559 } //end of the function WINS_MakeSocketBroadcastCapable
560 //===========================================================================
564 // Changes Globals: -
565 //===========================================================================
566 int WINS_Broadcast( int socket, byte *buf, int len ){
569 if ( socket != net_broadcastsocket ) {
570 if ( net_broadcastsocket != 0 ) {
571 WinError( "Attempted to use multiple broadcasts sockets\n" );
573 ret = WINS_MakeSocketBroadcastCapable( socket );
575 WinPrint( "Unable to make socket broadcast capable\n" );
580 return WINS_Write( socket, buf, len, &broadcastaddr );
581 } //end of the function WINS_Broadcast
582 //===========================================================================
583 // returns qtrue on success or qfalse on failure
587 // Changes Globals: -
588 //===========================================================================
589 int WINS_Write( int socket, byte *buf, int len, struct sockaddr_s *addr ){
594 while ( written < len )
596 ret = sendto( socket, &buf[written], len - written, 0, (struct sockaddr *)addr, sizeof( struct sockaddr_s ) );
597 if ( ret == SOCKET_ERROR ) {
598 if ( WSAGetLastError() != WSAEWOULDBLOCK ) {
612 while ( written < len )
614 ret = send( socket, buf, len, 0 );
615 if ( ret == SOCKET_ERROR ) {
616 if ( WSAGetLastError() != WSAEWOULDBLOCK ) {
627 if ( ret == SOCKET_ERROR ) {
628 WinPrint( "WINS_Write: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
630 return ( ret == len );
631 } //end of the function WINS_Write
632 //===========================================================================
636 // Changes Globals: -
637 //===========================================================================
638 char *WINS_AddrToString( struct sockaddr_s *addr ){
639 static char buffer[22];
642 haddr = ntohl( ( (struct sockaddr_in *)addr )->sin_addr.s_addr );
643 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 ) );
645 } //end of the function WINS_AddrToString
646 //===========================================================================
650 // Changes Globals: -
651 //===========================================================================
652 int WINS_StringToAddr( char *string, struct sockaddr_s *addr ){
653 int ha1, ha2, ha3, ha4, hp;
656 sscanf( string, "%d.%d.%d.%d:%d", &ha1, &ha2, &ha3, &ha4, &hp );
657 ipaddr = ( ha1 << 24 ) | ( ha2 << 16 ) | ( ha3 << 8 ) | ha4;
659 addr->sa_family = AF_INET;
660 ( (struct sockaddr_in *)addr )->sin_addr.s_addr = htonl( ipaddr );
661 ( (struct sockaddr_in *)addr )->sin_port = htons( (u_short)hp );
663 } //end of the function WINS_StringToAddr
664 //===========================================================================
668 // Changes Globals: -
669 //===========================================================================
670 int WINS_GetSocketAddr( int socket, struct sockaddr_s *addr ){
671 int addrlen = sizeof( struct sockaddr_s );
674 memset( addr, 0, sizeof( struct sockaddr_s ) );
675 getsockname( socket, (struct sockaddr *)addr, &addrlen );
676 a = ( (struct sockaddr_in *)addr )->sin_addr.s_addr;
677 if ( a == 0 || a == inet_addr( "127.0.0.1" ) ) {
678 ( (struct sockaddr_in *)addr )->sin_addr.s_addr = myAddr;
682 } //end of the function WINS_GetSocketAddr
683 //===========================================================================
687 // Changes Globals: -
688 //===========================================================================
689 int WINS_GetNameFromAddr( struct sockaddr_s *addr, char *name ){
690 struct hostent *hostentry;
692 hostentry = gethostbyaddr( (char *)&( (struct sockaddr_in *)addr )->sin_addr, sizeof( struct in_addr ), AF_INET );
694 strncpy( name, (char *)hostentry->h_name, NET_NAMELEN - 1 );
698 strcpy( name, WINS_AddrToString( addr ) );
700 } //end of the function WINS_GetNameFromAddr
701 //===========================================================================
705 // Changes Globals: -
706 //===========================================================================
707 int WINS_GetAddrFromName( char *name, struct sockaddr_s *addr ){
708 struct hostent *hostentry;
710 if ( name[0] >= '0' && name[0] <= '9' ) {
711 return PartialIPAddress( name, addr );
714 hostentry = gethostbyname( name );
719 addr->sa_family = AF_INET;
720 ( (struct sockaddr_in *)addr )->sin_port = htons( (u_short)net_hostport );
721 ( (struct sockaddr_in *)addr )->sin_addr.s_addr = *(int *)hostentry->h_addr_list[0];
724 } //end of the function WINS_GetAddrFromName
725 //===========================================================================
729 // Changes Globals: -
730 //===========================================================================
731 int WINS_AddrCompare( struct sockaddr_s *addr1, struct sockaddr_s *addr2 ){
732 if ( addr1->sa_family != addr2->sa_family ) {
736 if ( ( (struct sockaddr_in *)addr1 )->sin_addr.s_addr != ( (struct sockaddr_in *)addr2 )->sin_addr.s_addr ) {
740 if ( ( (struct sockaddr_in *)addr1 )->sin_port != ( (struct sockaddr_in *)addr2 )->sin_port ) {
745 } //end of the function WINS_AddrCompare
746 //===========================================================================
750 // Changes Globals: -
751 //===========================================================================
752 int WINS_GetSocketPort( struct sockaddr_s *addr ){
753 return ntohs( ( (struct sockaddr_in *)addr )->sin_port );
754 } //end of the function WINS_GetSocketPort
755 //===========================================================================
759 // Changes Globals: -
760 //===========================================================================
761 int WINS_SetSocketPort( struct sockaddr_s *addr, int port ){
762 ( (struct sockaddr_in *)addr )->sin_port = htons( (u_short)port );
764 } //end of the function WINS_SetSocketPort