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Server x Cliente (Internet) - Não fuciona RRS feed

  • Pergunta

  • O que há de errado com esses dois códigos eles não funcionam para a Internet só rede interna?

    // fonte http://msdn.microsoft.com/en-us/library/windows/desktop/ms737593(v=vs.85).aspx

    // Servidor

    #undef UNICODE

    #define WIN32_LEAN_AND_MEAN #include <windows.h> #include <winsock2.h> #include <ws2tcpip.h> #include <stdlib.h> #include <stdio.h> // Need to link with Ws2_32.lib#pragma comment (lib, "Ws2_32.lib") // #pragma comment (lib, "Mswsock.lib")#define DEFAULT_BUFLEN 512 #define DEFAULT_PORT "27015" int __cdecl main(void) { WSADATA wsaData; int iResult; SOCKET ListenSocket = INVALID_SOCKET; SOCKET ClientSocket = INVALID_SOCKET; struct addrinfo *result = NULL; struct addrinfo hints; int iSendResult; char recvbuf[DEFAULT_BUFLEN]; int recvbuflen = DEFAULT_BUFLEN; // Initialize Winsock iResult = WSAStartup(MAKEWORD(2,2), &wsaData); if (iResult != 0) { printf("WSAStartup failed with error: %d\n", iResult); return 1; } ZeroMemory(&hints, sizeof(hints)); hints.ai_family = AF_INET; hints.ai_socktype = SOCK_STREAM; hints.ai_protocol = IPPROTO_TCP; hints.ai_flags = AI_PASSIVE; // Resolve the server address and port iResult = getaddrinfo(NULL, DEFAULT_PORT, &hints, &result); if ( iResult != 0 ) { printf("getaddrinfo failed with error: %d\n", iResult); WSACleanup(); return 1; } // Create a SOCKET for connecting to server ListenSocket = socket(result->ai_family, result->ai_socktype, result->ai_protocol); if (ListenSocket == INVALID_SOCKET) { printf("socket failed with error: %ld\n", WSAGetLastError()); freeaddrinfo(result); WSACleanup(); return 1; } // Setup the TCP listening socket iResult = bind( ListenSocket, result->ai_addr, (int)result->ai_addrlen); if (iResult == SOCKET_ERROR) { printf("bind failed with error: %d\n", WSAGetLastError()); freeaddrinfo(result); closesocket(ListenSocket); WSACleanup(); return 1; } freeaddrinfo(result); iResult = listen(ListenSocket, SOMAXCONN); if (iResult == SOCKET_ERROR) { printf("listen failed with error: %d\n", WSAGetLastError()); closesocket(ListenSocket); WSACleanup(); return 1; } // Accept a client socket ClientSocket = accept(ListenSocket, NULL, NULL); if (ClientSocket == INVALID_SOCKET) { printf("accept failed with error: %d\n", WSAGetLastError()); closesocket(ListenSocket); WSACleanup(); return 1; } // No longer need server socket closesocket(ListenSocket); // Receive until the peer shuts down the connectiondo { iResult = recv(ClientSocket, recvbuf, recvbuflen, 0); if (iResult > 0) { printf("Bytes received: %d\n", iResult); // Echo the buffer back to the sender iSendResult = send( ClientSocket, recvbuf, iResult, 0 ); if (iSendResult == SOCKET_ERROR) { printf("send failed with error: %d\n", WSAGetLastError()); closesocket(ClientSocket); WSACleanup(); return 1; } printf("Bytes sent: %d\n", iSendResult); } elseif (iResult == 0) printf("Connection closing...\n"); else { printf("recv failed with error: %d\n", WSAGetLastError()); closesocket(ClientSocket); WSACleanup(); return 1; } } while (iResult > 0); // shutdown the connection since we're done iResult = shutdown(ClientSocket, SD_SEND); if (iResult == SOCKET_ERROR) { printf("shutdown failed with error: %d\n", WSAGetLastError()); closesocket(ClientSocket); WSACleanup(); return 1; } // cleanup closesocket(ClientSocket); WSACleanup(); return 0; }

    //Cliente

    #define WIN32_LEAN_AND_MEAN
    
    #include <windows.h>
    #include <winsock2.h>
    #include <ws2tcpip.h>
    #include <stdlib.h>
    #include <stdio.h>
    
    
    // Need to link with Ws2_32.lib, Mswsock.lib, and Advapi32.lib
    #pragma comment (lib, "Ws2_32.lib")
    #pragma comment (lib, "Mswsock.lib")
    #pragma comment (lib, "AdvApi32.lib")
    
    
    #define DEFAULT_BUFLEN 512
    #define DEFAULT_PORT "27015"
    
    int __cdecl main(int argc, char **argv) 
    {
        WSADATA wsaData;
        SOCKET ConnectSocket = INVALID_SOCKET;
        struct addrinfo *result = NULL,
                        *ptr = NULL,
                        hints;
        char *sendbuf = "this is a test";
        char recvbuf[DEFAULT_BUFLEN];
        int iResult;
        int recvbuflen = DEFAULT_BUFLEN;
        
        // Validate the parameters
        if (argc != 2) {
            printf("usage: %s server-name\n", argv[0]);
            return 1;
        }
    
        // Initialize Winsock
        iResult = WSAStartup(MAKEWORD(2,2), &wsaData);
        if (iResult != 0) {
            printf("WSAStartup failed with error: %d\n", iResult);
            return 1;
        }
    
        ZeroMemory( &hints, sizeof(hints) );
        hints.ai_family = AF_UNSPEC;
        hints.ai_socktype = SOCK_STREAM;
        hints.ai_protocol = IPPROTO_TCP;
    
        // Resolve the server address and port
        iResult = getaddrinfo(argv[1], DEFAULT_PORT, &hints, &result);
        if ( iResult != 0 ) {
            printf("getaddrinfo failed with error: %d\n", iResult);
            WSACleanup();
            return 1;
        }
    
        // Attempt to connect to an address until one succeeds
        for(ptr=result; ptr != NULL ;ptr=ptr->ai_next) {
    
            // Create a SOCKET for connecting to server
            ConnectSocket = socket(ptr->ai_family, ptr->ai_socktype, 
                ptr->ai_protocol);
            if (ConnectSocket == INVALID_SOCKET) {
                printf("socket failed with error: %ld\n", WSAGetLastError());
                WSACleanup();
                return 1;
            }
    
            // Connect to server.
            iResult = connect( ConnectSocket, ptr->ai_addr, (int)ptr->ai_addrlen);
            if (iResult == SOCKET_ERROR) {
                closesocket(ConnectSocket);
                ConnectSocket = INVALID_SOCKET;
                continue;
            }
            break;
        }
    
        freeaddrinfo(result);
    
        if (ConnectSocket == INVALID_SOCKET) {
            printf("Unable to connect to server!\n");
            WSACleanup();
            return 1;
        }
    
        // Send an initial buffer
        iResult = send( ConnectSocket, sendbuf, (int)strlen(sendbuf), 0 );
        if (iResult == SOCKET_ERROR) {
            printf("send failed with error: %d\n", WSAGetLastError());
            closesocket(ConnectSocket);
            WSACleanup();
            return 1;
        }
    
        printf("Bytes Sent: %ld\n", iResult);
    
        // shutdown the connection since no more data will be sent
        iResult = shutdown(ConnectSocket, SD_SEND);
        if (iResult == SOCKET_ERROR) {
            printf("shutdown failed with error: %d\n", WSAGetLastError());
            closesocket(ConnectSocket);
            WSACleanup();
            return 1;
        }
    
        // Receive until the peer closes the connection
        do {
    
            iResult = recv(ConnectSocket, recvbuf, recvbuflen, 0);
            if ( iResult > 0 )
                printf("Bytes received: %d\n", iResult);
            else if ( iResult == 0 )
                printf("Connection closed\n");
            else
                printf("recv failed with error: %d\n", WSAGetLastError());
    
        } while( iResult > 0 );
    
        // cleanup
        closesocket(ConnectSocket);
        WSACleanup();
    
        return 0;
    }


    ANS

    terça-feira, 3 de julho de 2012 02:09