/// \file /// \brief SocketLayer class implementation /// /// This file is part of RakNet Copyright 2003 Kevin Jenkins. /// /// Usage of RakNet is subject to the appropriate license agreement. /// Creative Commons Licensees are subject to the /// license found at /// http://creativecommons.org/licenses/by-nc/2.5/ /// Single application licensees are subject to the license found at /// http://www.jenkinssoftware.com/SingleApplicationLicense.html /// Custom license users are subject to the terms therein. /// GPL license users are subject to the GNU General Public /// License as published by the Free /// Software Foundation; either version 2 of the License, or (at your /// option) any later version. #include "SocketLayer.h" #include #include "MTUSize.h" #ifdef _WIN32 typedef int socklen_t; #elif !defined(_PS3) #include // memcpy #include #include #include #include // error numbers #include // printf #endif #if defined(_PS3) #if defined (_PS3_LOBBY) // OK this is lame but you need to know the app port when sending to the external IP. // I'm just assuming it's the same as our own because it would break the interfaces to pass it to SendTo directly. static unsigned short HACK_APP_PORT; #include "np/common.h" #include #include #endif #endif #ifdef _WIN32 #elif defined(_PS3) #define closesocket socketclose #else #define closesocket close #include #endif #include #include "ExtendedOverlappedPool.h" #ifdef _MSC_VER #pragma warning( push ) #endif bool SocketLayer::socketLayerStarted = false; #ifdef _WIN32 WSADATA SocketLayer::winsockInfo; #endif SocketLayer SocketLayer::I; extern void ProcessNetworkPacket( const unsigned int binaryAddress, const unsigned short port, const char *data, const int length, RakPeer *rakPeer, unsigned connectionSocketIndex ); extern void ProcessPortUnreachable( const unsigned int binaryAddress, const unsigned short port, RakPeer *rakPeer ); #ifdef _DEBUG #include #endif SocketLayer::SocketLayer() { if ( socketLayerStarted == false ) { #ifdef _WIN32 if ( WSAStartup( MAKEWORD( 2, 2 ), &winsockInfo ) != 0 ) { #if defined(_WIN32) && !defined(_XBOX360) && defined(_DEBUG) DWORD dwIOError = GetLastError(); LPVOID messageBuffer; FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwIOError, MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language ( LPTSTR ) & messageBuffer, 0, NULL ); // something has gone wrong here... printf( "WSAStartup failed:Error code - %d\n%s", dwIOError, messageBuffer ); //Free the buffer. LocalFree( messageBuffer ); #endif } #endif socketLayerStarted = true; } } SocketLayer::~SocketLayer() { if ( socketLayerStarted == true ) { #ifdef _WIN32 WSACleanup(); #endif socketLayerStarted = false; } } SOCKET SocketLayer::Connect( SOCKET writeSocket, unsigned int binaryAddress, unsigned short port ) { assert( writeSocket != (SOCKET) -1 ); sockaddr_in connectSocketAddress; connectSocketAddress.sin_family = AF_INET; connectSocketAddress.sin_port = htons( port ); connectSocketAddress.sin_addr.s_addr = binaryAddress; if ( connect( writeSocket, ( struct sockaddr * ) & connectSocketAddress, sizeof( struct sockaddr ) ) != 0 ) { #if defined(_WIN32) && !defined(_XBOX360) && defined(_DEBUG) DWORD dwIOError = GetLastError(); LPVOID messageBuffer; FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwIOError, MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language ( LPTSTR ) &messageBuffer, 0, NULL ); // something has gone wrong here... printf( "WSAConnect failed:Error code - %d\n%s", dwIOError, messageBuffer ); //Free the buffer. LocalFree( messageBuffer ); #endif } return writeSocket; } bool SocketLayer::IsPortInUse(unsigned short port) { SOCKET listenSocket; sockaddr_in listenerSocketAddress; // Listen on our designated Port# listenerSocketAddress.sin_port = htons( port ); listenSocket = socket( AF_INET, SOCK_DGRAM, 0 ); if ( listenSocket == (SOCKET) -1 ) return true; // bind our name to the socket // Fill in the rest of the address structure listenerSocketAddress.sin_family = AF_INET; listenerSocketAddress.sin_addr.s_addr = INADDR_ANY; int ret = bind( listenSocket, ( struct sockaddr * ) & listenerSocketAddress, sizeof( listenerSocketAddress ) ); closesocket(listenSocket); return ret <= -1; } SOCKET SocketLayer::CreateBoundSocket( unsigned short port, bool blockingSocket, const char *forceHostAddress ) { (void) blockingSocket; int ret; SOCKET listenSocket; #if defined(_PS3) && defined (_PS3_LOBBY) sockaddr_in_p2p listenerSocketAddress; memset(&listenerSocketAddress, 0, sizeof(listenerSocketAddress)); // Lobby version listenerSocketAddress.sin_port = htons(SCE_NP_PORT); HACK_APP_PORT = port; // Save the locally bound port listenerSocketAddress.sin_vport = htons(port); listenSocket = socket( AF_INET, SOCK_DGRAM_P2P, 0 ); // Normal version as below #else sockaddr_in listenerSocketAddress; // Listen on our designated Port# listenerSocketAddress.sin_port = htons( port ); #if 0 // defined(_WIN32) listenSocket = WSASocket(AF_INET, SOCK_DGRAM, IPPROTO_UDP, NULL, 0, 0); #else listenSocket = socket( AF_INET, SOCK_DGRAM, 0 ); #endif #endif if ( listenSocket == (SOCKET) -1 ) { #if defined(_WIN32) && !defined(_XBOX360) && defined(_DEBUG) DWORD dwIOError = GetLastError(); LPVOID messageBuffer; FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwIOError, MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language ( LPTSTR ) & messageBuffer, 0, NULL ); // something has gone wrong here... printf( "socket(...) failed:Error code - %d\n%s", dwIOError, messageBuffer ); //Free the buffer. LocalFree( messageBuffer ); #endif return (SOCKET) -1; } int sock_opt = 1; if ( setsockopt( listenSocket, SOL_SOCKET, SO_REUSEADDR, ( char * ) & sock_opt, sizeof ( sock_opt ) ) == -1 ) { #if defined(_WIN32) && !defined(_XBOX360) && defined(_DEBUG) DWORD dwIOError = GetLastError(); LPVOID messageBuffer; FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwIOError, MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language ( LPTSTR ) & messageBuffer, 0, NULL ); // something has gone wrong here... printf( "setsockopt(SO_REUSEADDR) failed:Error code - %d\n%s", dwIOError, messageBuffer ); //Free the buffer. LocalFree( messageBuffer ); #endif } // This doubles the max throughput rate sock_opt=1024*256; setsockopt(listenSocket, SOL_SOCKET, SO_RCVBUF, ( char * ) & sock_opt, sizeof ( sock_opt ) ); #ifndef _PS3 // This doesn't make much difference: 10% maybe // Not supported on console 2 sock_opt=1024*16; setsockopt(listenSocket, SOL_SOCKET, SO_SNDBUF, ( char * ) & sock_opt, sizeof ( sock_opt ) ); #endif #ifdef _WIN32 unsigned long nonblocking = 1; ioctlsocket( listenSocket, FIONBIO, &nonblocking ); #elif defined(_PS3) sock_opt=1; setsockopt(listenSocket, SOL_SOCKET, SO_NBIO, ( char * ) & sock_opt, sizeof ( sock_opt ) ); #else fcntl( listenSocket, F_SETFL, O_NONBLOCK ); #endif #if defined(_WIN32) && !defined(_XBOX360) && defined(_DEBUG) // If this assert hit you improperly linked against WSock32.h assert(IP_DONTFRAGMENT==14); #endif // TODO - I need someone on dialup to test this with :( // Path MTU Detection // if ( setsockopt( listenSocket, IPPROTO_IP, IP_DONTFRAGMENT, ( char * ) & sock_opt, sizeof ( sock_opt ) ) == -1 ) // { //#if defined(_WIN32) && !defined(_XBOX360) && defined(_DEBUG) // DWORD dwIOError = GetLastError(); // LPVOID messageBuffer; // FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, // NULL, dwIOError, MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language // ( LPTSTR ) & messageBuffer, 0, NULL ); // something has gone wrong here... // printf( "setsockopt(IP_DONTFRAGMENT) failed:Error code - %d\n%s", dwIOError, messageBuffer ); //Free the buffer. // LocalFree( messageBuffer ); //#endif // } // Set broadcast capable sock_opt=1; if ( setsockopt( listenSocket, SOL_SOCKET, SO_BROADCAST, ( char * ) & sock_opt, sizeof( sock_opt ) ) == -1 ) { #if defined(_WIN32) && !defined(_XBOX360) && defined(_DEBUG) DWORD dwIOError = GetLastError(); LPVOID messageBuffer; FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwIOError, MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language ( LPTSTR ) & messageBuffer, 0, NULL ); // something has gone wrong here... printf( "setsockopt(SO_BROADCAST) failed:Error code - %d\n%s", dwIOError, messageBuffer ); //Free the buffer. LocalFree( messageBuffer ); #endif } // Fill in the rest of the address structure listenerSocketAddress.sin_family = AF_INET; if (forceHostAddress && forceHostAddress[0]) { listenerSocketAddress.sin_addr.s_addr = inet_addr( forceHostAddress ); } else { listenerSocketAddress.sin_addr.s_addr = INADDR_ANY; } // bind our name to the socket ret = bind( listenSocket, ( struct sockaddr * ) & listenerSocketAddress, sizeof( listenerSocketAddress ) ); if ( ret <= -1 ) { #if defined(_WIN32) && !defined(_XBOX360) && defined(_DEBUG) DWORD dwIOError = GetLastError(); LPVOID messageBuffer; FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwIOError, MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language ( LPTSTR ) & messageBuffer, 0, NULL ); // something has gone wrong here... printf( "bind(...) failed:Error code - %d\n%s", dwIOError, messageBuffer ); //Free the buffer. LocalFree( messageBuffer ); #elif (defined(__GNUC__) || defined(__GCCXML__) || defined(_PS3)) && !defined(__WIN32) switch (ret) { case EBADF: printf("bind(): sockfd is not a valid descriptor.\n"); break; #ifndef _PS3 case ENOTSOCK: printf("bind(): Argument is a descriptor for a file, not a socket.\n"); break; #endif case EINVAL: printf("bind(): The addrlen is wrong, or the socket was not in the AF_UNIX family.\n"); break; case EROFS: printf("bind(): The socket inode would reside on a read-only file system.\n"); break; case EFAULT: printf("bind(): my_addr points outside the user's accessible address space.\n"); break; case ENAMETOOLONG: printf("bind(): my_addr is too long.\n"); break; case ENOENT: printf("bind(): The file does not exist.\n"); break; case ENOMEM: printf("bind(): Insufficient kernel memory was available.\n"); break; case ENOTDIR: printf("bind(): A component of the path prefix is not a directory.\n"); break; case EACCES: printf("bind(): Search permission is denied on a component of the path prefix.\n"); break; #ifndef _PS3 case ELOOP: printf("bind(): Too many symbolic links were encountered in resolving my_addr.\n"); break; #endif default: printf("Unknown bind() error %i.\n", ret); break; } #endif return (SOCKET) -1; } return listenSocket; } #if !defined(_XBOX360) const char* SocketLayer::DomainNameToIP( const char *domainName ) { struct hostent * phe = gethostbyname( domainName ); if ( phe == 0 || phe->h_addr_list[ 0 ] == 0 ) { //cerr << "Yow! Bad host lookup." << endl; return 0; } struct in_addr addr; if (phe->h_addr_list[ 0 ]==0) return 0; memcpy( &addr, phe->h_addr_list[ 0 ], sizeof( struct in_addr ) ); return inet_ntoa( addr ); } #endif void SocketLayer::Write( const SOCKET writeSocket, const char* data, const int length ) { #ifdef _DEBUG assert( writeSocket != (SOCKET) -1 ); #endif send( writeSocket, data, length, 0 ); } int SocketLayer::RecvFrom( const SOCKET s, RakPeer *rakPeer, int *errorCode, unsigned connectionSocketIndex ) { int len; char data[ MAXIMUM_MTU_SIZE ]; #if defined(_PS3) && defined (_PS3_LOBBY) sockaddr_in_p2p sa; #else sockaddr_in sa; #endif socklen_t len2 = sizeof( sa ); sa.sin_family = AF_INET; #ifdef _DEBUG data[ 0 ] = 0; len = 0; sa.sin_addr.s_addr = 0; #endif if ( s == (SOCKET) -1 ) { *errorCode = -1; return -1; } #if defined (_WIN32) || !defined(MSG_DONTWAIT) const int flag=0; #else const int flag=MSG_DONTWAIT; #endif len = recvfrom( s, data, MAXIMUM_MTU_SIZE, flag, ( sockaddr* ) & sa, ( socklen_t* ) & len2 ); // if (len>0) // printf("Got packet on port %i\n",ntohs(sa.sin_port)); if ( len == 0 ) { #ifdef _DEBUG printf( "Error: recvfrom returned 0 on a connectionless blocking call\non port %i. This is a bug with Zone Alarm. Please turn off Zone Alarm.\n", ntohs( sa.sin_port ) ); assert( 0 ); #endif //*errorCode = -1; #ifdef __linux__ char str[INET_ADDRSTRLEN]; inet_ntop(AF_INET, &(sa.sin_addr), str, INET_ADDRSTRLEN); printf("[RakNet] SocketLayer::RecvFrom: empty datagram from %s", str); #endif //return -1; return 0; } if ( len > 0 ) // if ( len != SOCKET_ERROR ) { unsigned short portnum; //#if defined(_PS3) && defined (_PS3_LOBBY) // portnum = ntohs( sa.sin_vport ); //#else portnum = ntohs( sa.sin_port ); //#endif //strcpy(ip, inet_ntoa(sa.sin_addr)); //if (strcmp(ip, "0.0.0.0")==0) // strcpy(ip, "127.0.0.1"); ProcessNetworkPacket( sa.sin_addr.s_addr, portnum, data, len, rakPeer, connectionSocketIndex ); return 1; } else { *errorCode = 0; #if defined(_WIN32) && !defined(_XBOX360) && defined(_DEBUG) DWORD dwIOError = WSAGetLastError(); if ( dwIOError == WSAEWOULDBLOCK ) { return SOCKET_ERROR; } if ( dwIOError == WSAECONNRESET ) { #if defined(_DEBUG) // printf( "A previous send operation resulted in an ICMP Port Unreachable message.\n" ); #endif unsigned short portnum=0; ProcessPortUnreachable(sa.sin_addr.s_addr, portnum, rakPeer); // *errorCode = dwIOError; return -1; } else { #if defined(_DEBUG) if ( dwIOError != WSAEINTR ) { LPVOID messageBuffer; FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwIOError, MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language ( LPTSTR ) & messageBuffer, 0, NULL ); // something has gone wrong here... printf( "recvfrom failed:Error code - %d\n%s", dwIOError, messageBuffer ); //Free the buffer. LocalFree( messageBuffer ); } #endif } #elif defined(__linux__) if (len < -1) { printf("[RakNet] SocketLayer::RecvFrom: Unexpected return value."); return -1; } int local_errno = errno; if (local_errno == EAGAIN || local_errno == EWOULDBLOCK) { return 0; // no data } if (local_errno == EINTR) { printf("[RakNet] SocketLayer::RecvFrom: The receive was interrupted by delivery of a signal before any data were available."); return 0; // log, but ignore } char str[INET_ADDRSTRLEN]; inet_ntop(AF_INET, &(sa.sin_addr), str, INET_ADDRSTRLEN); printf("[RakNet] SocketLayer::RecvFrom: Error receiving data from %s", str); switch (local_errno) { case EINVAL: printf("[RakNet] SocketLayer::RecvFrom: Invalid argument passed."); break; case ENOMEM: case ENOBUFS: printf("[RakNet] SocketLayer::RecvFrom: Could not allocate memory for recvmsg()."); break; case EFAULT: printf("[RakNet] SocketLayer::RecvFrom: The receive buffer pointer(s) point outside the process's address space."); break; case EBADF: printf("[RakNet] SocketLayer::RecvFrom: The argument sockfd is an invalid descriptor."); break; case ENOTSOCK: printf("[RakNet] SocketLayer::RecvFrom: The argument sockfd does not refer to a socket."); break; case EPIPE: printf("[RakNet] SocketLayer::RecvFrom: The connection was unexpectedly closed or shut down by the other end. "); break; default: printf("[RakNet] SocketLayer::RecvFrom: Unknown Error %d", local_errno); break; } return -1; #endif } return 0; // no data } #ifdef _MSC_VER #pragma warning( disable : 4702 ) // warning C4702: unreachable code #endif int SocketLayer::SendTo( SOCKET s, const char *data, int length, unsigned int binaryAddress, unsigned short port ) { if ( s == (SOCKET) -1 ) { return -1; } int len; #if defined(_PS3) && defined (_PS3_LOBBY) sockaddr_in_p2p sa; memset(&sa, 0, sizeof(sa)); // LAME!!!! You have to know the behind-nat port on the recipient! Just guessing it is the same as our own sa.sin_vport = htons(HACK_APP_PORT); sa.sin_port = htons(port); // Port returned from signaling #else sockaddr_in sa; sa.sin_port = htons( port ); // User port #endif sa.sin_addr.s_addr = binaryAddress; sa.sin_family = AF_INET; #if 1 // !defined(_WIN32) do { len = sendto( s, data, length, 0, ( const sockaddr* ) & sa, sizeof( sa ) ); } while ( len == 0 ); #else WSABUF DataBuf; DataBuf.len = length; DataBuf.buf = (char*) data; DWORD bytesSent; int WSASendToResult = WSASendTo(s, &DataBuf, 1, &bytesSent, 0, (SOCKADDR*) &sa, sizeof( sa ), 0, NULL); len=bytesSent; if (WSASendToResult!=0) { DWORD dwIOError = WSAGetLastError(); LPVOID messageBuffer; FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwIOError, MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language ( LPTSTR ) & messageBuffer, 0, NULL ); // something has gone wrong here... printf( "sendto failed:Error code - %d\n%s", dwIOError, messageBuffer ); //Free the buffer. LocalFree( messageBuffer ); } #endif if ( len != -1 ) return 0; #if defined(_WIN32) DWORD dwIOError = WSAGetLastError(); if ( dwIOError == WSAECONNRESET ) { #if defined(_DEBUG) printf( "A previous send operation resulted in an ICMP Port Unreachable message.\n" ); #endif } else if ( dwIOError != WSAEWOULDBLOCK ) { #if defined(_WIN32) && !defined(_XBOX360) && defined(_DEBUG) LPVOID messageBuffer; FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwIOError, MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language ( LPTSTR ) & messageBuffer, 0, NULL ); // something has gone wrong here... printf( "sendto failed:Error code - %d\n%s", dwIOError, messageBuffer ); //Free the buffer. LocalFree( messageBuffer ); #endif } return dwIOError; #endif return 1; // error } int SocketLayer::SendTo( SOCKET s, const char *data, int length, const char ip[ 16 ], unsigned short port ) { unsigned int binaryAddress; binaryAddress = inet_addr( ip ); return SendTo( s, data, length, binaryAddress, port ); } int SocketLayer::SendToTTL( SOCKET s, const char *data, int length, const char ip[ 16 ], unsigned short port, int ttl ) { #if !defined(_XBOX360) int oldTTL; socklen_t opLen=sizeof(oldTTL); // Get the current TTL if (getsockopt(s, IPPROTO_IP, IP_TTL, ( char * ) & oldTTL, &opLen ) == -1) { #if defined(_WIN32) && defined(_DEBUG) DWORD dwIOError = GetLastError(); LPVOID messageBuffer; FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwIOError, MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language ( LPTSTR ) & messageBuffer, 0, NULL ); // something has gone wrong here... printf( "getsockopt(IPPROTO_IP,IP_TTL) failed:Error code - %d\n%s", dwIOError, messageBuffer ); //Free the buffer. LocalFree( messageBuffer ); #endif } // Set to TTL int newTTL=ttl; if (setsockopt(s, IPPROTO_IP, IP_TTL, ( char * ) & newTTL, sizeof ( newTTL ) ) == -1) { #if defined(_WIN32) && defined(_DEBUG) DWORD dwIOError = GetLastError(); LPVOID messageBuffer; FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwIOError, MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language ( LPTSTR ) & messageBuffer, 0, NULL ); // something has gone wrong here... printf( "setsockopt(IPPROTO_IP,IP_TTL) failed:Error code - %d\n%s", dwIOError, messageBuffer ); //Free the buffer. LocalFree( messageBuffer ); #endif } // Send int res = SendTo(s,data,length,ip,port); // Restore the old TTL setsockopt(s, IPPROTO_IP, IP_TTL, ( char * ) & oldTTL, opLen ); return res; #else return 0; #endif } #if !defined(_XBOX360) void SocketLayer::GetMyIP( char ipList[ 10 ][ 16 ] ) { #if !defined(_PS3) char ac[ 80 ]; if ( gethostname( ac, sizeof( ac ) ) == -1 ) { #if defined(_WIN32) && !defined(_XBOX360) && defined(_DEBUG) DWORD dwIOError = GetLastError(); LPVOID messageBuffer; FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwIOError, MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language ( LPTSTR ) & messageBuffer, 0, NULL ); // something has gone wrong here... printf( "gethostname failed:Error code - %d\n%s", dwIOError, messageBuffer ); //Free the buffer. LocalFree( messageBuffer ); #endif return ; } struct hostent *phe = gethostbyname( ac ); if ( phe == 0 ) { #if defined(_WIN32) && !defined(_XBOX360) && defined(_DEBUG) DWORD dwIOError = GetLastError(); LPVOID messageBuffer; FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwIOError, MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language ( LPTSTR ) & messageBuffer, 0, NULL ); // something has gone wrong here... printf( "gethostbyname failed:Error code - %d\n%s", dwIOError, messageBuffer ); //Free the buffer. LocalFree( messageBuffer ); #endif return ; } for ( int i = 0; phe->h_addr_list[ i ] != 0 && i < 10; ++i ) { struct in_addr addr; memcpy( &addr, phe->h_addr_list[ i ], sizeof( struct in_addr ) ); //cout << "Address " << i << ": " << inet_ntoa(addr) << endl; strcpy( ipList[ i ], inet_ntoa( addr ) ); } #else union CellNetCtlInfo info; int errCode; if((errCode=cellNetCtlGetInfo(CELL_NET_CTL_INFO_IP_ADDRESS, &info)) >= 0){ memcpy(ipList[0], info.ip_address, sizeof(info.ip_address)); ipList[1][0]=0; } return; #endif } #endif unsigned short SocketLayer::GetLocalPort ( SOCKET s ) { sockaddr_in sa; socklen_t len = sizeof(sa); if (getsockname(s, (sockaddr*)&sa, &len)!=0) { #if defined(_WIN32) && !defined(_XBOX360) && defined(_DEBUG) DWORD dwIOError = GetLastError(); LPVOID messageBuffer; FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwIOError, MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language ( LPTSTR ) & messageBuffer, 0, NULL ); // something has gone wrong here... printf( "getsockname failed:Error code - %d\n%s", dwIOError, messageBuffer ); //Free the buffer. LocalFree( messageBuffer ); #endif return 0; } return ntohs(sa.sin_port); } #ifdef _MSC_VER #pragma warning( pop ) #endif