2 Copyright (C) 1999-2007 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 return "No error occurred";
158 for ( search = 0; errlist[search].errstr; search++ )
160 if ( error == errlist[search].errnum ) {
161 return errlist[search].errstr;
165 return "Unknown error";
166 } //end of the function WINS_ErrorMessage
167 //===========================================================================
171 // Changes Globals: -
172 //===========================================================================
173 int WINS_Init( void ){
175 struct hostent *local;
176 char buff[MAXHOSTNAMELEN];
177 struct sockaddr_s addr;
180 WORD wVersionRequested;
182 wVersionRequested = MAKEWORD( 1, 1 );
184 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 != '.' ) {
216 // if it is a real name, strip off the domain; we only want the host
218 for ( i = 0; i < 15; i++ )
219 if ( buff[i] == '.' ) {
224 // Cvar_Set ("hostname", buff);
227 if ( ( net_controlsocket = WINS_OpenSocket( 0 ) ) == -1 ) {
228 WinError( "WINS_Init: Unable to open control socket\n" );
231 ( (struct sockaddr_in *)&broadcastaddr )->sin_family = AF_INET;
232 ( (struct sockaddr_in *)&broadcastaddr )->sin_addr.s_addr = INADDR_BROADCAST;
233 ( (struct sockaddr_in *)&broadcastaddr )->sin_port = htons( (u_short)net_hostport );
235 WINS_GetSocketAddr( net_controlsocket, &addr );
236 strcpy( my_tcpip_address, WINS_AddrToString( &addr ) );
237 p = strrchr( my_tcpip_address, ':' );
241 WinPrint( "Winsock Initialized\n" );
243 return net_controlsocket;
244 } //end of the function WINS_Init
245 //===========================================================================
249 // Changes Globals: -
250 //===========================================================================
251 char *WINS_MyAddress( void ){
252 return my_tcpip_address;
253 } //end of the function WINS_MyAddress
254 //===========================================================================
258 // Changes Globals: -
259 //===========================================================================
260 void WINS_Shutdown( void ){
262 WINS_CloseSocket( net_controlsocket );
265 WinPrint( "Winsock Shutdown\n" );
266 } //end of the function WINS_Shutdown
267 //===========================================================================
271 // Changes Globals: -
272 //===========================================================================
274 void WINS_Listen(int state)
279 if (net_acceptsocket != -1)
281 if ((net_acceptsocket = WINS_OpenSocket (net_hostport)) == -1)
282 WinError ("WINS_Listen: Unable to open accept socket\n");
287 if (net_acceptsocket == -1)
289 WINS_CloseSocket (net_acceptsocket);
290 net_acceptsocket = -1;
291 } //end of the function WINS_Listen*/
292 //===========================================================================
296 // Changes Globals: -
297 //===========================================================================
298 int WINS_OpenSocket( int port ){
300 struct sockaddr_in address;
303 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 ) {
309 WinPrint( "WINS_OpenSocket: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
310 closesocket( newsocket );
314 memset( (char *) &address, 0, sizeof( address ) );
315 address.sin_family = AF_INET;
316 address.sin_addr.s_addr = INADDR_ANY;
317 address.sin_port = htons( (u_short)port );
318 if ( bind( newsocket, (void *)&address, sizeof( address ) ) == -1 ) {
319 WinPrint( "WINS_OpenSocket: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
320 closesocket( newsocket );
325 } //end of the function WINS_OpenSocket
326 //===========================================================================
330 // Changes Globals: -
331 //===========================================================================
332 int WINS_OpenReliableSocket( int port ){
334 struct sockaddr_in address;
335 BOOL _true = 0xFFFFFFFF;
339 if ( ( newsocket = socket( AF_INET, SOCK_STREAM, 0 ) ) == -1 ) {
340 WinPrint( "WINS_OpenReliableSocket: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
344 memset( (char *) &address, 0, sizeof( address ) );
345 address.sin_family = AF_INET;
346 address.sin_addr.s_addr = htonl( INADDR_ANY );
347 address.sin_port = htons( (u_short)port );
348 if ( bind( newsocket, (void *)&address, sizeof( address ) ) == -1 ) {
349 WinPrint( "WINS_OpenReliableSocket: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
350 closesocket( newsocket );
355 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 ){
371 if ( ioctlsocket( socket, FIONBIO, &_true ) == -1 ) {
372 WinPrint( "WINS_Listen: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
375 if ( listen( socket, SOMAXCONN ) == SOCKET_ERROR ) {
376 WinPrint( "WINS_Listen: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
380 } //end of the function WINS_Listen
381 //===========================================================================
385 // Changes Globals: -
386 //===========================================================================
387 int WINS_Accept( int socket, struct sockaddr_s *addr ){
388 int addrlen = sizeof( struct sockaddr_s );
392 newsocket = accept( socket, (struct sockaddr *)addr, &addrlen );
393 if ( newsocket == INVALID_SOCKET ) {
394 if ( WSAGetLastError() == WSAEWOULDBLOCK ) {
397 WinPrint( "WINS_Accept: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
401 if ( setsockopt( newsocket, IPPROTO_TCP, TCP_NODELAY, (void *) &_true, sizeof( int ) ) == SOCKET_ERROR ) {
402 WinPrint( "WINS_Accept: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
403 WinPrint( "setsockopt error\n" );
406 } //end of the function WINS_Accept
407 //===========================================================================
411 // Changes Globals: -
412 //===========================================================================
413 int WINS_CloseSocket( int socket ){
415 if (socket == net_broadcastsocket)
416 net_broadcastsocket = 0;
418 // shutdown(socket, SD_SEND);
420 if ( closesocket( socket ) == SOCKET_ERROR ) {
421 WinPrint( "WINS_CloseSocket: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
425 } //end of the function WINS_CloseSocket
426 //===========================================================================
427 // this lets you type only as much of the net address as required, using
428 // the local network components to fill in the rest
432 // Changes Globals: -
433 //===========================================================================
434 static int PartialIPAddress( char *in, struct sockaddr_s *hostaddr ){
443 strcpy( buff + 1, in );
444 if ( buff[1] == '.' ) {
453 if ( *++b < '0' || *b > '9' ) {
456 while ( !( *b < '0' || *b > '9' ) )
457 num = num * 10 + *( b++ ) - '0';
459 addr = ( addr << 8 ) + num;
462 hostaddr->sa_family = AF_INET;
463 ( (struct sockaddr_in *)hostaddr )->sin_port = htons( (u_short)net_hostport );
464 ( (struct sockaddr_in *)hostaddr )->sin_addr.s_addr = ( myAddr & htonl( mask ) ) | htonl( addr );
467 } //end of the function PartialIPAddress
468 //===========================================================================
472 // Changes Globals: -
473 //===========================================================================
474 int WINS_Connect( int socket, struct sockaddr_s *addr ){
476 u_long _true2 = 0xFFFFFFFF;
478 ret = connect( socket, (struct sockaddr *)addr, sizeof( struct sockaddr_s ) );
479 if ( ret == SOCKET_ERROR ) {
480 WinPrint( "WINS_Connect: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
483 if ( ioctlsocket( socket, FIONBIO, &_true2 ) == -1 ) {
484 WinPrint( "WINS_Connect: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
488 } //end of the function WINS_Connect
489 //===========================================================================
493 // Changes Globals: -
494 //===========================================================================
495 int WINS_CheckNewConnections( void ){
498 if ( net_acceptsocket == -1 ) {
502 if ( recvfrom( net_acceptsocket, buf, 4, MSG_PEEK, NULL, NULL ) > 0 ) {
503 return net_acceptsocket;
506 } //end of the function WINS_CheckNewConnections
507 //===========================================================================
508 // returns the number of bytes read
509 // 0 if no bytes available
514 // Changes Globals: -
515 //===========================================================================
516 int WINS_Read( int socket, byte *buf, int len, struct sockaddr_s *addr ){
517 int addrlen = sizeof( struct sockaddr_s );
521 ret = recvfrom( socket, buf, len, 0, (struct sockaddr *)addr, &addrlen );
523 errno = WSAGetLastError();
525 if ( errno == WSAEWOULDBLOCK || errno == WSAECONNREFUSED ) {
532 ret = recv( socket, buf, len, 0 );
533 if ( ret == SOCKET_ERROR ) {
534 errno = WSAGetLastError();
536 if ( errno == WSAEWOULDBLOCK || errno == WSAECONNREFUSED ) {
541 if ( ret == SOCKET_ERROR ) {
542 WinPrint( "WINS_Read: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
545 } //end of the function WINS_Read
546 //===========================================================================
550 // Changes Globals: -
551 //===========================================================================
552 int WINS_MakeSocketBroadcastCapable( int socket ){
555 // make this socket broadcast capable
556 if ( setsockopt( socket, SOL_SOCKET, SO_BROADCAST, (char *)&i, sizeof( i ) ) < 0 ) {
559 net_broadcastsocket = socket;
562 } //end of the function WINS_MakeSocketBroadcastCapable
563 //===========================================================================
567 // Changes Globals: -
568 //===========================================================================
569 int WINS_Broadcast( int socket, byte *buf, int len ){
572 if ( socket != net_broadcastsocket ) {
573 if ( net_broadcastsocket != 0 ) {
574 WinError( "Attempted to use multiple broadcasts sockets\n" );
576 ret = WINS_MakeSocketBroadcastCapable( socket );
578 WinPrint( "Unable to make socket broadcast capable\n" );
583 return WINS_Write( socket, buf, len, &broadcastaddr );
584 } //end of the function WINS_Broadcast
585 //===========================================================================
586 // returns qtrue on success or qfalse on failure
590 // Changes Globals: -
591 //===========================================================================
592 int WINS_Write( int socket, byte *buf, int len, struct sockaddr_s *addr ){
597 while ( written < len )
599 ret = sendto( socket, &buf[written], len - written, 0, (struct sockaddr *)addr, sizeof( struct sockaddr_s ) );
600 if ( ret == SOCKET_ERROR ) {
601 if ( WSAGetLastError() != WSAEWOULDBLOCK ) {
615 while ( written < len )
617 ret = send( socket, buf, len, 0 );
618 if ( ret == SOCKET_ERROR ) {
619 if ( WSAGetLastError() != WSAEWOULDBLOCK ) {
630 if ( ret == SOCKET_ERROR ) {
631 WinPrint( "WINS_Write: %s\n", WINS_ErrorMessage( WSAGetLastError() ) );
633 return ( ret == len );
634 } //end of the function WINS_Write
635 //===========================================================================
639 // Changes Globals: -
640 //===========================================================================
641 char *WINS_AddrToString( struct sockaddr_s *addr ){
642 static char buffer[22];
645 haddr = ntohl( ( (struct sockaddr_in *)addr )->sin_addr.s_addr );
646 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 ) );
648 } //end of the function WINS_AddrToString
649 //===========================================================================
653 // Changes Globals: -
654 //===========================================================================
655 int WINS_StringToAddr( char *string, struct sockaddr_s *addr ){
656 int ha1, ha2, ha3, ha4, hp;
659 sscanf( string, "%d.%d.%d.%d:%d", &ha1, &ha2, &ha3, &ha4, &hp );
660 ipaddr = ( ha1 << 24 ) | ( ha2 << 16 ) | ( ha3 << 8 ) | ha4;
662 addr->sa_family = AF_INET;
663 ( (struct sockaddr_in *)addr )->sin_addr.s_addr = htonl( ipaddr );
664 ( (struct sockaddr_in *)addr )->sin_port = htons( (u_short)hp );
666 } //end of the function WINS_StringToAddr
667 //===========================================================================
671 // Changes Globals: -
672 //===========================================================================
673 int WINS_GetSocketAddr( int socket, struct sockaddr_s *addr ){
674 int addrlen = sizeof( struct sockaddr_s );
677 memset( addr, 0, sizeof( struct sockaddr_s ) );
678 getsockname( socket, (struct sockaddr *)addr, &addrlen );
679 a = ( (struct sockaddr_in *)addr )->sin_addr.s_addr;
680 if ( a == 0 || a == inet_addr( "127.0.0.1" ) ) {
681 ( (struct sockaddr_in *)addr )->sin_addr.s_addr = myAddr;
685 } //end of the function WINS_GetSocketAddr
686 //===========================================================================
690 // Changes Globals: -
691 //===========================================================================
692 int WINS_GetNameFromAddr( struct sockaddr_s *addr, char *name ){
693 struct hostent *hostentry;
695 hostentry = gethostbyaddr( (char *)&( (struct sockaddr_in *)addr )->sin_addr, sizeof( struct in_addr ), AF_INET );
697 strncpy( name, (char *)hostentry->h_name, NET_NAMELEN - 1 );
701 strcpy( name, WINS_AddrToString( addr ) );
703 } //end of the function WINS_GetNameFromAddr
704 //===========================================================================
708 // Changes Globals: -
709 //===========================================================================
710 int WINS_GetAddrFromName( char *name, struct sockaddr_s *addr ){
711 struct hostent *hostentry;
713 if ( name[0] >= '0' && name[0] <= '9' ) {
714 return PartialIPAddress( name, addr );
717 hostentry = gethostbyname( name );
722 addr->sa_family = AF_INET;
723 ( (struct sockaddr_in *)addr )->sin_port = htons( (u_short)net_hostport );
724 ( (struct sockaddr_in *)addr )->sin_addr.s_addr = *(int *)hostentry->h_addr_list[0];
727 } //end of the function WINS_GetAddrFromName
728 //===========================================================================
732 // Changes Globals: -
733 //===========================================================================
734 int WINS_AddrCompare( struct sockaddr_s *addr1, struct sockaddr_s *addr2 ){
735 if ( addr1->sa_family != addr2->sa_family ) {
739 if ( ( (struct sockaddr_in *)addr1 )->sin_addr.s_addr != ( (struct sockaddr_in *)addr2 )->sin_addr.s_addr ) {
743 if ( ( (struct sockaddr_in *)addr1 )->sin_port != ( (struct sockaddr_in *)addr2 )->sin_port ) {
748 } //end of the function WINS_AddrCompare
749 //===========================================================================
753 // Changes Globals: -
754 //===========================================================================
755 int WINS_GetSocketPort( struct sockaddr_s *addr ){
756 return ntohs( ( (struct sockaddr_in *)addr )->sin_port );
757 } //end of the function WINS_GetSocketPort
758 //===========================================================================
762 // Changes Globals: -
763 //===========================================================================
764 int WINS_SetSocketPort( struct sockaddr_s *addr, int port ){
765 ( (struct sockaddr_in *)addr )->sin_port = htons( (u_short)port );
767 } //end of the function WINS_SetSocketPort