FSDFtpC::getInstance().UploadFile("ftp.jqe360.com", 21, "updates@jqe360.com", "xbox360", "debug.log", "game:\\");

above is call; below is function.

void FSDFtpC::UploadFile(string host, int port, string username, string password, string filename, string path)
{

    DebugMsg("FSDFtpC", "Starting process");
    netbuf *conn;

    XNDNS* m_pXNDns;
    HANDLE hEvent = CreateEvent(NULL, false, false, NULL);

    INT iErr = XNetDnsLookup(
        host.c_str(),         // a string that prepresents the host name
        hEvent,          // the event handle from the CreateEvent call
        &m_pXNDns);      // the XNDNS structure to receive the IP info for the DNS entry found.

    while (m_pXNDns->iStatus == WSAEINPROGRESS)
    {
        WaitForSingleObject(hEvent, INFINITE);
    }
    CloseHandle(hEvent);

    if (m_pXNDns->cina != 0 && m_pXNDns->iStatus == 0)
    {
        char *buffer;
        XNetInAddrToString(m_pXNDns->aina[0], buffer, 32);
        //host = sprintfaA("%s", buffer);
        XNetDnsRelease(m_pXNDns);
        DebugMsg("FTPTest", "Connecting to %s", buffer);
        if (!FtpConnect(buffer,21, &conn))
        {
            DebugMsg("FTPTest", "Failed to open connection");
            return;
        }
    } else {
        DebugMsg("FTPTest", "Connecting to %s", host.c_str());
        if (!FtpConnect(host.c_str(),21, &conn))
        {
            DebugMsg("FTPTest", "Failed to open connection");
            return;
        }
    }

    DebugMsg("FTPTest", "Logining in");
    DebugMsg("FTPClient", "Username: %s, Password: %s", username.c_str(), password.c_str());
    if (!FtpLogin(username.c_str(), password.c_str(), conn))
    {
        DebugMsg("FTPTest", "Failed to login");
        FtpClose(conn);
        return;
    }

    string localfilename = path + filename;
    string remotefilename = sprintfaA("/%s", filename.c_str());
    if(!FtpPut(localfilename.c_str(), remotefilename.c_str(), FTPLIB_BINARY, conn))
    {
        DebugMsg("FTPTest", "Upload Failed");
        FtpClose(conn);
        return;
    }

    FtpClose(conn);
    return;
}