Write a streambased echo server. The client should keep sending messages (by user prompt) to the server until the user enters "quit".

Server Code #undef UNICODE #de fine WIN32LEAN AND MEAN - #include #include #include ai family, result-ai socktype, result- ai protocol); if (ListenSocket INVALID SOCKET) printf("socket failed with error: ldin", WSAGetLastError)) freeaddrinfo(result); WSACleanup) return 1; I Setup the TCP listening socket Result . bind(ListenSocket, result->ai-addr, if (Result ". SOCKET_ERROR) { (int)result->ai-addrlen); printf ("bind failed with error : freeaddrinfo(result); closesocket (ListenSocket) WSACleanup) return 1; %d ", WSAGetLastError()); freeaddrinfo(result); Result . listen(ListenSocket, if (Result ". SOCKET_ERROR) { SONAXCONN); printf ("listen failed with closesocket (ListenSocket) WSACleanup) return 1; error: %d ", WSAGetLastError()); I Accept a client socket ClientSocket accept (ListenSocket, NULL, NULL); if (ClientSocket INVALID SOCKET) printf ("accept failed with closesocket (ListenSocket) WSACleanup) return 1; error: %d ", WSAGetLastError()); // No longer need server socket closesocket (ListenSocket) / Receive until the peer shuts down the connection do iResult- recv(ClientSocket, recvbuf, recvbuflen, e) // Resolve the server address and port Resultsul getaddrinfo(NULL, DEFAULT-PORT, &hints, &result); printf ("getaddrinfo failed WSACleanu with error: %din", iResult); return 1; // Create a SOCKET for connecting to server printf( "Bytes received: %d ", Result); // Echo the buffer back to the sender iS endResult send(ClientSocket, r if (SendResult .. SOCKET-ERROR) { recvbuf, Result, e); printf("send failed with error: closesocket(Client Socket); WSACleanup) return 1; %d ", WSAGetLastError()); printf "Bytes sent: 3dIn, iSendResult) else if (Result .. e) printf"Connection closing.In) else printf("recv failed with error: closesocket(Clientsocket); WSACleanup) return 1; %d ", WSAGetLastError()); while (iResult> e) // shutdown the connection since we're done Result . shutdown(Client Socket, SD-SEND); if (Result .. SOCKET_ERROR) { printf ("shutdown failed with error: closesocket (ClientSocket) WSACle anup) return 1; %d ", WSAGetLastError()); I cleanup closesocket(Clientsocket) WSACleanup return e; Client Code #de fine WIN32LEAN AND MEAN - #include #include #include #include #include ai_protocol) if (Connect Socket INVALID SOCKET) printf( "socket failed with error: 1dIn, WSAGetLastError O); WSACleanup) return 1; // Connect to server. iResult- connect (Connectsocket, ptr-ai addr, (int)ptr->ai addrlen); if (iResult sOCKET ERROR) closesocket (ConnectSocket) Connect Socket INVALID_SOCKET; continue break; freeaddrinfo(result); if (ConnectSocket INVALID SOCKET) printf ("Unable to connect to server! ") WSACleanup) return 1; /I Send an initial buffer iResult send (ConnectSocket, sendbuf, (int)strlen(sendbuf), e) if (Result ". SOCKET_ERROR) { printf ("send failed with error : closesocket (ConnectSocket); WSACleanup) %d ", WSAGetLastError()); return 1; printf( Bytes Sent: X1d , iResult); I shutdown the connection since no more data will be sent iResult shutdown (ConnectSocket, SD SEND) if (Result -SocKET ERROR) printf ("shutdown failed with error: closesocket (Connectsocket) WSACleanup); %d ", WSAGetLastError()); return 1; // Receive until the peer closes the connection do t Result recv(ConnectSocket, recvbuf, recvbuflen, e) if (iResult > e) printf( "Bytes received: %d " , iResult); else if (Result .. e) printf"Connection closed n) else printf("recv failed with error: %d -, WSAGetLastError()); } while (Result > e); I/ cleanup closesocket(Connectsocket); WSAC leanup system("pause") return e; Server Code #undef UNICODE #de fine WIN32LEAN AND MEAN - #include #include #include ai family, result-ai socktype, result- ai protocol); if (ListenSocket INVALID SOCKET) printf("socket failed with error: ldin", WSAGetLastError)) freeaddrinfo(result); WSACleanup) return 1; I Setup the TCP listening socket Result . bind(ListenSocket, result->ai-addr, if (Result ". SOCKET_ERROR) { (int)result->ai-addrlen); printf ("bind failed with error : freeaddrinfo(result); closesocket (ListenSocket) WSACleanup) return 1; %d ", WSAGetLastError()); freeaddrinfo(result); Result . listen(ListenSocket, if (Result ". SOCKET_ERROR) { SONAXCONN); printf ("listen failed with closesocket (ListenSocket) WSACleanup) return 1; error: %d ", WSAGetLastError()); I Accept a client socket ClientSocket accept (ListenSocket, NULL, NULL); if (ClientSocket INVALID SOCKET) printf ("accept failed with closesocket (ListenSocket) WSACleanup) return 1; error: %d ", WSAGetLastError()); // No longer need server socket closesocket (ListenSocket) / Receive until the peer shuts down the connection do iResult- recv(ClientSocket, recvbuf, recvbuflen, e) // Resolve the server address and port Resultsul getaddrinfo(NULL, DEFAULT-PORT, &hints, &result); printf ("getaddrinfo failed WSACleanu with error: %din", iResult); return 1; // Create a SOCKET for connecting to server printf( "Bytes received: %d ", Result); // Echo the buffer back to the sender iS endResult send(ClientSocket, r if (SendResult .. SOCKET-ERROR) { recvbuf, Result, e); printf("send failed with error: closesocket(Client Socket); WSACleanup) return 1; %d ", WSAGetLastError()); printf "Bytes sent: 3dIn, iSendResult) else if (Result .. e) printf"Connection closing.In) else printf("recv failed with error: closesocket(Clientsocket); WSACleanup) return 1; %d ", WSAGetLastError()); while (iResult> e) // shutdown the connection since we're done Result . shutdown(Client Socket, SD-SEND); if (Result .. SOCKET_ERROR) { printf ("shutdown failed with error: closesocket (ClientSocket) WSACle anup) return 1; %d ", WSAGetLastError()); I cleanup closesocket(Clientsocket) WSACleanup return e; Client Code #de fine WIN32LEAN AND MEAN - #include #include #include #include #include ai_protocol) if (Connect Socket INVALID SOCKET) printf( "socket failed with error: 1dIn, WSAGetLastError O); WSACleanup) return 1; // Connect to server. iResult- connect (Connectsocket, ptr-ai addr, (int)ptr->ai addrlen); if (iResult sOCKET ERROR) closesocket (ConnectSocket) Connect Socket INVALID_SOCKET; continue break; freeaddrinfo(result); if (ConnectSocket INVALID SOCKET) printf ("Unable to connect to server! ") WSACleanup) return 1; /I Send an initial buffer iResult send (ConnectSocket, sendbuf, (int)strlen(sendbuf), e) if (Result ". SOCKET_ERROR) { printf ("send failed with error : closesocket (ConnectSocket); WSACleanup) %d ", WSAGetLastError()); return 1; printf( Bytes Sent: X1d , iResult); I shutdown the connection since no more data will be sent iResult shutdown (ConnectSocket, SD SEND) if (Result -SocKET ERROR) printf ("shutdown failed with error: closesocket (Connectsocket) WSACleanup); %d ", WSAGetLastError()); return 1; // Receive until the peer closes the connection do t Result recv(ConnectSocket, recvbuf, recvbuflen, e) if (iResult > e) printf( "Bytes received: %d " , iResult); else if (Result .. e) printf"Connection closed n) else printf("recv failed with error: %d -, WSAGetLastError()); } while (Result > e); I/ cleanup closesocket(Connectsocket); WSAC leanup system("pause") return e