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int main(int argc, char **argv)
{
WSADATA wsaData;
SOCKET ListeningSocket, NewConnection;
SOCKADDR_IN ServerAddr, SenderInfo;
int Port = 7171;
char recvbuff[1024];
int ByteReceived, i, nlen, SelectTiming;
if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0)
{
printf("Server: WSAStartup failed with error %ld.\n", WSAGetLastError());
return 1;
}
else
{
printf("Server: The Winsock DLL found!\n");
printf("Server: The current status is %s.\n\n", wsaData.szSystemStatus);
}
if (LOBYTE(wsaData.wVersion) != 2 || HIBYTE(wsaData.wVersion) != 2 )
{
printf("Server: The dll do not support the Winsock version %u.%u!\n", LOBYTE(wsaData.wVersion),HIBYTE(wsaData.wVersion));
WSACleanup();
return 1;
}
else
{
printf("Server: The dll supports the Winsock version %u.%u!\n", LOBYTE(wsaData.wVersion),HIBYTE(wsaData.wVersion))
}
ListeningSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (ListeningSocket == INVALID_SOCKET)
{
printf("Server: Error at socket, error code: %ld.\n", WSAGetLastError());
WSACleanup();
return 1;
}
else
{
printf("Server: socket is ok!\n");
}
ServerAddr.sin_family = AF_INET;
ServerAddr.sin_port = htons(Port);
ServerAddr.sin_addr.s_addr = htonl(INADDR_ANY);
if (bind(ListeningSocket, (SOCKADDR *)&ServerAddr, sizeof(ServerAddr)) == SOCKET_ERROR)
{
printf("Server: bind failed! Error code: %ld.\n", WSAGetLastError());
closesocket(ListeningSocket);
WSACleanup();
return 1;
}
else
{
printf("Server: bind is working\n");
}
if (listen(ListeningSocket, 5) == SOCKET_ERROR)
{
printf("Server: listen: Error listening on socket %ld.\n", WSAGetLastError());
closesocket(ListeningSocket);
WSACleanup();
return 1;
}
else
{
printf("Server: listening for connections...\n\n");
}
while(1)
{
NewConnection = SOCKET_ERROR;
while(NewConnection == SOCKET_ERROR)
{
NewConnection = accept(ListeningSocket, NULL, NULL);
printf("Server: accept is working...\n");
printf("Server: New client got connected, ready to receive and send data...\n\n");
ByteReceived = recv(NewConnection, recvbuff, sizeof(recvbuff), 0);
if ( ByteReceived > 0 )
{
printf("Server: recv is working....\n");
getsockname(ListeningSocket, (SOCKADDR *)&ServerAddr, (int *)sizeof(ServerAddr));
printf("Server: IP(s) used by Server: %s\n", inet_ntoa(ServerAddr.sin_addr));
printf("Server: port used by Server: %d\n\n", htons(ServerAddr.sin_port));
memset(&SenderInfo, 0, sizeof(SenderInfo));
nlen = sizeof(SenderInfo);
getpeername(NewConnection, (SOCKADDR *)&SenderInfo, &nlen);
printf("Server: IP used by Client: %s\n", inet_ntoa(SenderInfo.sin_addr));
printf("Server: Port used by Client: %d\n", htons(SenderInfo.sin_port));
printf("Server: Bytes received: %d\n", ByteReceived);
printf("Server: Those bytes are: \"");
for(i=0;i < ByteReceived;i++)
{
printf("%c", recvbuff[i]);
}
printf("\"");
}
else if ( ByteReceived == 0 )
{
printf("Server: Connection closed!\n");
}
else
{
printf("Server: recv failed with error code: %d\n", WSAGetLastError());
}
}
if( shutdown(NewConnection, SD_SEND) != 0)
printf("\n\nServer: Well, there is something wrong with the shutdown. The error code: %ld\n", WSAGetLastError());
else
printf("\nServer: shutdown is working...\n");
}
return 0;
}
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Jun 5, 2013 at 10:48am