tcpipServer.cpp
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00007 #include "tcpipServer.h"
00008 #include <string.h>
00009 #include "detect_os.h"
00010 #ifdef Linux
00011 #include <sys/utsname.h>
00012 #else
00013 #include <windows.h>
00014 #endif
00015
00016
00017 TcpipServer::TcpipServer(void)
00018 #if !HAVE_CONFIG_H || HAVE_LIBSDL_NET
00019 : accept_socket(NULL)
00020 #endif
00021 {
00022 }
00023
00024
00025 TcpipServer::~TcpipServer(void) {
00026 #if !HAVE_CONFIG_H || HAVE_LIBSDL_NET
00027 if (accept_socket) {
00028 SDLNet_TCP_DelSocket(accept_set, accept_socket);
00029 SDLNet_FreeSocketSet(accept_set);
00030 accept_set = NULL;
00031 SDLNet_TCP_Close(accept_socket);
00032 accept_socket = NULL;
00033 }
00034 #endif
00035 }
00036
00037
00038 void TcpipServer::activate(unsigned short port) {
00039 #if !HAVE_CONFIG_H || HAVE_LIBSDL_NET
00040 SDLNet_ResolveHost(&ip, NULL, port);
00041
00042 if (accept_socket) {
00043 SDLNet_TCP_Close(accept_socket);
00044 }
00045 accept_socket = SDLNet_TCP_Open(&ip);
00046 if (!accept_socket) {
00047 char* message = new char [80 + strlen(SDLNet_GetError())];
00048 sprintf(message, "Create TCP/IP server(port %d): %s",
00049 port, SDLNet_GetError());
00050 throw ConnectionDevice_Exception(message);
00051 }
00052 accept_set = SDLNet_AllocSocketSet(1);
00053 SDLNet_TCP_AddSocket(accept_set, accept_socket);
00054 #endif
00055 }
00056
00057
00058 TcpipDevice* TcpipServer::accept(int timeout, bool manualCheckSockets) {
00059 #if !HAVE_CONFIG_H || HAVE_LIBSDL_NET
00060 int n = SDLNet_CheckSockets(accept_set, timeout);
00061 if ((n <= 0) || !SDLNet_SocketReady(accept_socket)) {
00062 return NULL;
00063 }
00064 TCPsocket net_socket = SDLNet_TCP_Accept(accept_socket);
00065 if (!net_socket) {
00066 return NULL;
00067 }
00068 TcpipDevice* socket = new TcpipDevice(net_socket, manualCheckSockets);
00069 socket->addSocket(net_socket);
00070
00071 return socket;
00072 #else
00073 return NULL;
00074 #endif
00075 }
00076
00077
00078 std::string TcpipServer::getOwnIP(void) {
00079 #if HAVE_CONFIG_H && !HAVE_LIBSDL_NET
00080 return "";
00081 #else
00082 #ifdef Linux
00083 struct utsname uts;
00084 if (uname(&uts) < 0) {
00085 return "";
00086 }
00087 char* host_name = uts.nodename;
00088 #else
00089 char host_name[MAX_COMPUTERNAME_LENGTH +1];
00090 DWORD length = sizeof(host_name);
00091 GetComputerName(host_name, &length);
00092 #endif
00093
00094 enum { ConnectionTestPort = 24590 };
00095 IPaddress host_ip;
00096 if (SDLNet_ResolveHost(&host_ip, host_name, ConnectionTestPort) < 0) {
00097 return "";
00098 }
00099 char ip_name[] = "XXX.XXX.XXX.XXX";
00100 sprintf(ip_name, "%d.%d.%d.%d",
00101 host_ip.host & 0xff, (host_ip.host >> 8) & 0xff,
00102 (host_ip.host >> 16) & 0xff, (host_ip.host >> 24) & 0xff);
00103
00104 return ip_name;
00105 #endif
00106 }
00107
