socket programming

according to MSDN

Quote:

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If no error occurs, Send returns the total number of characters sent. (Note that this can be less than the number indicated by nBufLen.) Otherwise, a value of SOCKET_ERROR is returned, and a specific error code can be retrieved by calling GetLastError. The following errors apply to this member function:

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so my send function returns the number of character it sends to server....(which is exactly equal to number of char i am passing)
but still at the server end i am not able to receive those character...
Receive function returns -1...........
could somebody send me a small code for using CArchive class for data transfer........
i tried a lot with the help of MSDN
thanks in advance
vishal:(

You are qouting a passage that you do not use in your application. Do you check for SOCKET_ERROR? no...Do you get the error code by using GetLastError? no...Further did you understand that SOCKET_ERROR is the same as -1? Well from your post it seems that you did not. Then how do you expect others to help???

Mathew i know that -1 and SOCKET_ERROR are same..but please look at my question carefully....
what i said is that i am able to send data correctly from client side but what **** i am doing wrong in server side.....
thanks
vishal

And read my post carefully too...you have to get the error no. Why didn't you post it?

VishalNikiSharma, you need to understand what Matthew Joy
is telling you. You must examine the error codes returned
by the socket functions. You will have a very hard time
writing socket programs if you don't. In particular if your
sockets are non-blocking (if you are using the horror CSocket then
this is probably the case) then the usual thing for your recv function
to do is to return SOCKET_ERROR with value WSAEWOULDBLOCK.
THIS IS SUPPOSED TO HAPPEN.
Now look at the following code for getting a error message from the code

PHP Code:

---

__inline void LOG_MESSAGE(const int error_code = -1, const char* msg = "", 
                 const char* title = "FOO ERROR", 
                 const int OptionFlag = USE_MESSAGE_BOX, 
                 const HWND hParent = NULL, const UINT BoxType = MB_OK|MB_ICONEXCLAMATION)
{
    std::string err(msg);
    if (error_code != -1)
    {
        LPVOID lpMsgBuf;
        FormatMessage( 
            FORMAT_MESSAGE_ALLOCATE_BUFFER | 
            FORMAT_MESSAGE_FROM_SYSTEM | 
            FORMAT_MESSAGE_IGNORE_INSERTS,
            NULL,
            error_code,
            MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
            (LPTSTR) &lpMsgBuf,
            0,
            NULL        
            );

        err += "\n";
        err += static_cast<char*>(lpMsgBuf);

        LocalFree(lpMsgBuf);
    }
    if(USE_MESSAGE_BOX == OptionFlag)
    {
        ::MessageBoxA(hParent, err.c_str(), title, BoxType);
    }
} 


---

USE_MESSAGE_BOX is just a constant I have defined, other options I use are to log to file etc..


so for you

if(SOCKET_ERROR == recv(...))
LOG_MESSAGE(GetLastError(), "EXTRA BIT OF INFO", "YOUR TITLE");

ok give a some time
i would try again and then put my points in a better way.........
i would be using CAsyncSocket instead CSocket....
vishal:eek:

Hi
I am trying server request/response program using socket class. here i couldn't send headers with the request to the proxy server.when i send the request i should able to get the response from the server.
if u have any idea please help me out.
Regards
request.
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