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Я опубликую свой код, но мне не обязательно его просматривать. Я просто хочу знать, связана ли ошибка, скорее всего, с кодом, или ожидается ли моя проблема. Я впервые пробую это. Я действительно только что скопировал пример сервера / клиента Winsock, размещенный в MSDN. Я отключил брандмауэры, и это не помогло. Нужно ли мне изучать что-то вроде переадресации портов или существуют ли настройки для функций (getaddrinfo, connect, listen и т. Д.), Которые влияют на это, Или он должен теоретически подключаться, когда сервер и клиент запускаются на двух отдельных компьютерах, если два приложения подключаются при запуске на одном компьютере?

Вот мой сервер:

 int server(){
WSADATA wsaData;
int iResu<
int i;

SOCKET ListenSocket = INVALID_SOCKET;
SOCKET ClientSocket = INVALID_SOCKET;

struct addrinfo *result = NULL;
struct addrinfo hints;
char sendbuf[sizeof(me)];

char ip[40];
int iSendResu<
char recvbuf[DEFAULT_BUFLEN];
int recvbuflen = DEFAULT_BUFLEN;
int timer = GetTickCount();

printf("Opening server socketn");

// Initialize Winsock
iResult = WSAStartup(MAKEWORD(2,2), amp;wsaData);
if (iResult != 0) {
    printf("WSAStartup failed with error: %dn", iResult);
    return 1;
}

ZeroMemory(amp;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, amp;hints, amp;result);
if ( iResult != 0 ) {
    printf("getaddrinfo failed with error: %dn", 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: %ldn", 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: %dn", WSAGetLastError());
    freeaddrinfo(result);
    closesocket(ListenSocket);
    WSACleanup();
    return 1;
}

freeaddrinfo(result);

iResult = listen(ListenSocket, SOMAXCONN);
if (iResult == SOCKET_ERROR) {
    printf("listen failed with error: %dn", WSAGetLastError());
    closesocket(ListenSocket);
    WSACleanup();
    return 1;
}

//This part just displays computer hostname and IP address to input in the client
if(gethostname(ip, sizeof(ip))!=0){

    std::cout << "ERROR: " << WSAGetLastError() << std::endl;
}
i=0;
std::cout << "Host name is ";

   struct hostent *phe = gethostbyname(ip);
if (phe == 0) {
    std::cerr << "Yow! Bad host lookup." << std::endl;
    return 1;
}

i=0;
while(ip[i]!=NULL)
    std::cout << ip[i  ];



for (i = 0; phe->h_addr_list[i] != 0;   i) {
    struct in_addr addr;
    memcpy(amp;addr, phe->h_addr_list[i], sizeof(struct in_addr));
    std::cout << "Address " << i << ": " << inet_ntoa(addr) << std::endl;
}


// Accept a client socket
ClientSocket = accept(ListenSocket, NULL, NULL);
if (ClientSocket == INVALID_SOCKET) {
    printf("accept failed with error: %dn", WSAGetLastError());
    closesocket(ListenSocket);
    WSACleanup();
    return 1;
}


// No longer need server socket
closesocket(ListenSocket);


// Receive until the peer shuts down the connection
do{
    while(GetTickCount()-timer<(1000/(2.0*FPS)))
        Sleep(SLEEPTIMER);

    me[0]=cx;
    me[1]=cy;
    me[2]=dr;
    me[3]=at;

    memcpy(sendbuf, me, sizeof(float)*4);
    iResult = send( ClientSocket, sendbuf, sizeof(float)*4, 0 );
    iResult = recv(ClientSocket, recvbuf, recvbuflen, 0);
    memcpy(them, recvbuf, sizeof(float)*4);

    std::cout << sizeof(me) << std::endl;

    if (iResult == 0)
        printf("Connection closing...n");

} while (iResult > 0);

// shutdown the connection since we're done
iResult = shutdown(ClientSocket, SD_SEND);
if (iResult == SOCKET_ERROR) {
    printf("shutdown failed with error: %dn", WSAGetLastError());
    closesocket(ClientSocket);
    WSACleanup();
    return 1;
}

// cleanup
closesocket(ClientSocket);
WSACleanup();

return 0;
}
  

вот мой клиент:

 int __cdecl client() 
{
printf("Opening clent socketn");
WSADATA wsaData;
SOCKET ConnectSocket = INVALID_SOCKET;
struct addrinfo *result = NULL,
                *ptr = NULL,
                hints;
char sendbuf[sizeof(me)];
char recvbuf[DEFAULT_BUFLEN];
int iResu<
int recvbuflen = DEFAULT_BUFLEN;
char *init = "this is a test";
int timer = GetTickCount();

std::string  ip;
PCSTR ip_c;


//window.setFramerateLimit(1);

std::cout << "Enter the IP address of the server: ";
std::cin >> ip;

//memcpy(amp;ip_c, amp;ip, sizeof(ip));

/* // Validate the parameters
if (argc != 2) {
    printf("usage: %s server-namen", argv[0]);
    return 1;
}*/

// Initialize Winsock
iResult = WSAStartup(MAKEWORD(2,2), amp;wsaData);
if (iResult != 0) {
    printf("WSAStartup failed with error: %dn", iResult);
    return 1;
}

ZeroMemory( amp;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(ip.c_str(), DEFAULT_PORT, amp;hints, amp;result);
if ( iResult != 0 ) {
    printf("getaddrinfo failed with error: %dn", iResult);
    WSACleanup();
    return 1;
}

// Attempt to connect to an address until one succeeds
for(ptr=resu< ptr != NULL ;ptr=ptr->ai_next) {
    printf("Attempting to connectn");
    // 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: %ldn", WSAGetLastError());
        WSACleanup();
        return 1;
    }
    cnct=1;
    printf("Connectingn");
    std::cout << ptr->ai_addr << std::endl;
    // 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;
}

printf("Sendingn");


// Send an initial buffer
iResult = send( ConnectSocket, init, (int)strlen(init), 0 );
if (iResult == SOCKET_ERROR) {
    printf("send failed with error: %dn", WSAGetLastError());
    closesocket(ConnectSocket);
    WSACleanup();
    return 1;
}

printf("Bytes Sent: %ldn", iResult);


while(1){
    while(GetTickCount()-timer<(1000/(2.0*FPS)))
        Sleep(20);

    timer = GetTickCount();

    me[0]=cx;
    me[1]=cy;
    me[2]=dr;
    me[3]=at;

    memcpy(sendbuf, me, sizeof(float)*4);
    iResult = send( ConnectSocket, sendbuf, sizeof(float)*4, 0 );
    iResult = recv(ConnectSocket, recvbuf, recvbuflen, 0);
    memcpy(them, recvbuf, sizeof(float)*4);

    std::cout << me[1] << std::endl;


}

// shutdown the connection since no more data will be sent
iResult = shutdown(ConnectSocket, SD_SEND);
if (iResult == SOCKET_ERROR) {
    printf("shutdown failed with error: %dn", 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: %dn", iResult);
    else if ( iResult == 0 )
        printf("Connection closedn");
    else
        printf("recv failed with error: %dn", WSAGetLastError());

} while( iResult > 0 );

// cleanup
closesocket(ConnectSocket);
WSACleanup();

return 0;
}