[Shooting King]

I am using this winsock2 code for getting Server A2S_Info Query. But when i try to get Queries from my own server (at localhost) it gives me a timeout :C

PHP Code:

#define WIN32_LEAN_AND_MEAN

#include <windows.h>
#include <winsock2.h>
#include <ws2tcpip.h>
#include <stdlib.h>
#include <stdio.h>
#include <iostream>

using namespace std;

// 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 256

void dump_buffer(int len, const unsigned char* szBuffer)
{
    int i, j, iPrinted = 0;

    for( i = 0; i < len; i++ )
    {
        printf( "%02X ", szBuffer[i] );
        iPrinted++;

        if( iPrinted == 16 || i == len-1)
        {
            for( j = 0; j < ((16-iPrinted)+2)*3; j++ ) printf( " " );

            for( j = i-iPrinted+1; j <= i; j++ )
            {
                printf( "%c", (isprint(szBuffer[j])?szBuffer[j]:'.') );
            }
            printf( "\n" );
            iPrinted = 0;
        }
    }
    printf( "\n" );
}

int __cdecl main(int argc, char **argv) 
{
    WSADATA wsaData;
    SOCKET ConnectSocket = INVALID_SOCKET;
    struct addrinfo *result = NULL,
                    *ptr = NULL,
                    hints;
    char *sendbuf = "\xff\xff\xff\xffTSource Engine Query\x00";
    char recvbuf[DEFAULT_BUFLEN];
    int iResult;
    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_UNSPEC;
    hints.ai_socktype = SOCK_DGRAM;
    hints.ai_protocol = IPPROTO_UDP;

    // Resolve the server address and port
    iResult = getaddrinfo("localhost", "27032", &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;
        }
        
        int ReceiveTimeout = 6000;
        setsockopt(ConnectSocket, SOL_SOCKET, SO_RCVTIMEO, (char*)&ReceiveTimeout, sizeof(int));
        // 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;
    }
    int total = 0;
    do{
        iResult = recv(ConnectSocket, recvbuf, recvbuflen, 0);
        if ( iResult > 0 )
        {
            dump_buffer( recvbuflen, (unsigned char*)recvbuf );
            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 );
    
    printf( "Exiting ... \n"  );

    /*cout << endl << endl;
    cout << "Size of Short : " << sizeof (short) << endl;
    cout << "Size of int : " << sizeof (int) << endl;
    cout << "Size of long : " << sizeof (long) << endl;
    cout << "Size of longlong : " << sizeof (long long) << endl;
    cout << "Size of char : " << sizeof (char) << endl;
    cout << "Size of float : " << sizeof (float) << endl;
    
    cout << std::hex << recvbuffer << endl;
    for( int i = 0; i <= total; i++ )
    {
        //if( recvbuffer[i] != '\xfffffffe' )
        //    cout << std::hex << std::setw(2) << (int)recvbuffer[i] << std::setw(7) << recvbuffer[i] << " ";
        //else
            cout << std::setw(9) << recvbuffer[i] << " ";

        if( i % 7 == 0 ) cout << endl;
    }
    printf( "Header - %x\n", recvbuffer[0] );
    printf( "Address - %s\n", &recvbuffer[1] );
    for( int i = 1; i <= (int)strlen( &recvbuffer[1] ); i++ )
    {
        cout << std::hex << (int)recvbuffer[i-1] << " ";
        if( i % 10 == 0 ) cout << endl;
    }
    int temp = strlen(&recvbuffer[1])+1;
    printf( "Name - %s\n", &recvbuffer[temp] );
    temp += strlen(&recvbuffer[temp])+1;
    printf( "Map - %s\n", &recvbuffer[temp] );
    temp += strlen(&recvbuffer[temp])+1;
    printf( "Folder - %s\n", &recvbuffer[temp] );
    temp += strlen(&recvbuffer[temp])+1;
    printf( "Game - %s\n", &recvbuffer[temp] );
    temp++;
    printf( "Players - %c\n", 48+recvbuffer[temp] );
    temp++;
    printf( "MaxPlayers - %c\n", 48+recvbuffer[temp] );
    temp++;
    printf( "Protocol - %c\n", 48+recvbuffer[temp] );
    temp++;
    printf( "Server Type - %c\n", recvbuffer[temp] );
    temp++;
    printf( "Envirnoment - %c\n", recvbuffer[temp] );
    temp++;
    printf( "Visibility - %c\n", recvbuffer[temp] );
    temp++;
    printf( "Mod - %c\n", 48+recvbuffer[temp] );*/
    
    closesocket(ConnectSocket);
    WSACleanup();
    system( "pause" );
    return 0;
} 


[Neeeeeeeeeel.-]

Did you tried with 127.0.0.1? If it doesn't work, try with your public address.

[Shooting King]

Originally Posted by Neeeeeeeeeel.- Did you tried with 127.0.0.1? If it doesn't work, try with your public address.

Already tied 127.0.0.1, localhost, 192.168.x.x and Global IP. fyi, i am behind a NAT.

[claudiuhks]

Did you check AMX Mod X Sockets module's source?

[Shooting King]

Originally Posted by claudiuhks Did you check AMX Mod X Sockets module's source?

Yes, seen, but i did't get any good out of it. Can tell me where is my mistake ?

[claudiuhks]

Originally Posted by Shooting King Yes, seen, but i did't get any good out of it. Can tell me where is my mistake ?

I can't right now because I've got no studies regarding C/ C++ but what I can say is that I recommend IPPROTO_UDP to be changed to IPPROTO_IP, AF_UNSPEC to AF_INET and regarding WSAStartup function ain't MAKEWORD(1u, 1u) version enough?

Also are you sure you want to use DGRAM Socket type? What about STREAM?

That's the way I use Sockets.

PHP Code:

#pragma comment (lib, "ws2_32.lib") // link ws2_32.lib to Program,
    // this is designed for Internet connection in Program

// include winsock2.h file, this is designed for Windows and Internet applications
#include <WinSock2.h>

// when program starts
VOID main(SIZE_T, PCHAR argsList[])
{
    // startup Internet in program
    WSADATA dataHndl;

    WSAStartup(MAKEWORD(1u, 1u), &dataHndl);

    // create new socket for DGRAM and IP protocol
    SOCKET sockHndl = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP);

    // retrieve IPAddress of target
    SOCKADDR_IN srvHndl;

    ULONG addrHndl = inet_addr(argsList[1u]);

    // copy IPAddress to srvHndl
    memcpy(&srvHndl.sin_addr, &addrHndl, sizeof addrHndl);

    // set family as AF_INET and port as the numerical port htons'ed
    srvHndl.sin_family = AF_INET;
    srvHndl.sin_port = htons(atoi(argsList[2u]));

    // connect to target
    connect(sockHndl, (PSOCKADDR)&srvHndl, sizeof srvHndl);

// .......
} 


[Shooting King]

Originally Posted by claudiuhks I can't right now because I've got no studies regarding C/ C++ but what I can say is that I recommend IPPROTO_UDP to be changed to IPPROTO_IP, AF_UNSPEC to AF_INET and regarding WSAStartup function ain't MAKEWORD(1u, 1u) version enough? Also are you sure you want to use DGRAM Socket type? What about STREAM?

See This.
There is no IPPROTO_IP. There is a choice for transport layer only.
I think AF_UNSPEC can be used for all types of interfaces ?
Hl Queries use UDP, UDP can only be used with SOCK_DGRAM ?
Latest version is 2.2 according to MSDN : |

[Shooting King]

Some one has to know