To display network packet contents without encoding issues, data must be converted to hexadecimal format. The following utility function performs this conversion:

std::string ConvertToHex(const char* data, size_t size) {
    std::string hexResult;
    hexResult.reserve(size * 2);
    for (size_t i = 0; i < size; ++i) {
        char hex[3];
        snprintf(hex, sizeof(hex), "%02X", static_cast<unsigned char="">(data[i]));
        hexResult.append(hex);
    }
    return hexResult;
}</unsigned>

Preserve original function addresses for hooking Windows socket operations:

int (WSAAPI* OriginalSend)(SOCKET, LPCSTR, int, int) = ::send;
int (WSAAPI* OriginalWSASend)(SOCKET, LPWSABUF, DWORD, LPDWORD, DWORD, 
                             LPWSAOVERLAPPED, LPWSAOVERLAPPED_COMPLETION_ROUTINE) = ::WSASend;
int (WSAAPI* OriginalSendTo)(SOCKET, LPCSTR, int, int, const sockaddr*, int) = ::sendto;

int (WSAAPI* OriginalRecv)(SOCKET, LPSTR, int, int) = ::recv;
int (WSAAPI* OriginalWSARecv)(SOCKET, LPWSABUF, DWORD, LPDWORD, LPDWORD,
                             LPWSAOVERLAPPED, LPWSAOVERLAPPED_COMPLETION_ROUTINE) = ::WSARecv;
int (WSAAPI* OriginalRecvFrom)(SOCKET, LPSTR, int, int, sockaddr*, int*) = ::recvfrom;

Implement proxy functions to intercept socket operations. This example shows the send function hook:

int WSAAPI HookedSend(
    SOCKET connection,      // Connection identifier
    const char* payload,    // Data buffer
    int payloadSize,        // Data length
    int flags               // Send options
)