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#define sw_port 27016
#define sw_ip "127.0.0.1"
DWORD WINAPI SocketHandler(void*);
void runserver()
{
unsigned short wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 2, 2 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 || ( LOBYTE( wsaData.wVersion ) != 2 || HIBYTE( wsaData.wVersion ) != 2 ))
{
cout << "Could not find useable sock dll " << WSAGetLastError() << endl;
return;
}
int hsock;
int *p_int;
hsock = socket(AF_INET, SOCK_STREAM, 0);
if(hsock == -1)
{
cout << "Error initializing socket " << WSAGetLastError() << endl;
return;
}
p_int = new int;
*p_int = 1;
if( (setsockopt(hsock, SOL_SOCKET, SO_REUSEADDR, (char*)p_int, sizeof(int)) == -1 ) || (setsockopt(hsock, SOL_SOCKET, SO_KEEPALIVE, (char*)p_int, sizeof(int)) == -1 ) )
{
cout << "Error setting options " << WSAGetLastError() << endl;
delete p_int;
return;
}
delete p_int;
struct sockaddr_in my_addr;
my_addr.sin_family = AF_INET;
my_addr.sin_port = htons(sw_port);
memset(&(my_addr.sin_zero), 0, 8);
my_addr.sin_addr.s_addr = INADDR_ANY ;
if( bind( hsock, (struct sockaddr*)&my_addr, sizeof(my_addr)) == -1 )
{
cout << "Error binding to socket, make sure nothing else is listening on this port " << WSAGetLastError() << endl;
return;
}
if(listen( hsock, 10) == -1 )
{
cout << "Error listening " << WSAGetLastError() << endl;
return;
}
int *csock;
sockaddr_in sadr;
int addr_size = sizeof(SOCKADDR);
csock = new int;
while(true)
{
cout << "waiting for a connection..." << endl;
if((*csock = accept( hsock, (SOCKADDR*)&sadr, &addr_size)) != INVALID_SOCKET )
{
cout << "Received connection from " << inet_ntoa(sadr.sin_addr) << endl;
CreateThread(0,0, &SocketHandler, (void*)csock , 0,0);
}
}
}
#define format(line, ilen, in,... ) _snprintf( line, ilen, in, __VA_ARGS__ );
int mcounter = 0;
DWORD WINAPI SocketHandler(void* lp)
{
int *csock = (int*)lp;
char buffer[1024];
int buffer_len = 1024;
int bytecount;
memset(buffer, 0, buffer_len);
if( (bytecount = recv(*csock, buffer, buffer_len, 0)) == SOCKET_ERROR)
{
cout << "Error receiving data" << WSAGetLastError() << endl;
return 0;
}
cout << "Received bytes:" << bytecount << endl << "Received string:" << buffer << endl;
format(buffer, 999, "message count(%d)", mcounter);
mcounter++;
cout << endl;
if((bytecount = send(*csock, buffer, strlen(buffer), 0))==SOCKET_ERROR)
{
cout << "Error sending data " << WSAGetLastError() << endl;
return 0;
}
cout << "Sent bytes:" << bytecount << endl;
free(csock);
return 0;
}
void runclient()
{
unsigned short wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 2, 2 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 || ( LOBYTE( wsaData.wVersion ) != 2 || HIBYTE( wsaData.wVersion ) != 2 ))
{
cout << "Could not find useable sock dll " << WSAGetLastError() << endl;
return;
}
int hsock;
int * p_int ;
hsock = socket(AF_INET, SOCK_STREAM, 0);
if(hsock == -1)
{
cout << "Error initializing socket " << WSAGetLastError() << endl;
return;
}
p_int = new int;
*p_int = 1;
if( (setsockopt(hsock, SOL_SOCKET, SO_REUSEADDR, (char*)p_int, sizeof(int)) == -1 ) || (setsockopt(hsock, SOL_SOCKET, SO_KEEPALIVE, (char*)p_int, sizeof(int)) == -1 ) )
{
cout << "Error setting options " << WSAGetLastError() << endl;
delete p_int;
return;
}
delete p_int;
struct sockaddr_in my_addr;
my_addr.sin_family = AF_INET;
my_addr.sin_port = htons(sw_port);
memset(&(my_addr.sin_zero), 0, 8);
my_addr.sin_addr.s_addr = inet_addr(sw_ip);
if( connect( hsock, (struct sockaddr*)&my_addr, sizeof(my_addr)) == SOCKET_ERROR )
{
cout << "Error connecting socket " << WSAGetLastError() << endl;
return;
}
char buffer[1024] = "";
int bytecount;
int re = 0;
int a = 0;
while(1)
{
a = 0;
cout << "what do you want to do?" << endl;
cout << "1- sent string data" << endl;
cout << "0- disconnect" << endl;
cin >> re;
cout << endl << endl;
cout << "enter a string what you wish to sent" << endl;
buffer[0] = 0;
cin >> buffer;
cout << "sending ..." << endl;
while(buffer[a]) a++;
if( (bytecount=send(hsock, buffer, a, 0))==SOCKET_ERROR)
{
cout << "Error sending data " << WSAGetLastError() << endl;
break;
}
if((bytecount = recv(hsock, buffer, 1024, 0))==SOCKET_ERROR)
{
cout << "Error receiving data " << WSAGetLastError() << endl;
break;
}
cout << "Recieved bytes:" << bytecount << endl << "Received string:" << buffer << endl;
cout << endl << endl << endl;
}
closesocket(hsock);
}
int _tmain(int argc, _TCHAR* argv[])
{
int mode = 0;
cout << "choose mode" << endl << endl;
cout << "1 - server" << endl;
cout << "2 - client" << endl << endl;
cin >> mode;
if( mode == 1 ) runserver();
else if( mode == 2 ) runclient();
cout << endl << endl << "press enter to exit..." << endl;
system("PAUSE");
return 900;
}
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