C++

Send a 16-bit Integer over a Socket

Demonstrates Socket.SendInt16, which sends the low 16 bits of a value as a two-byte integer in the selected byte order.

Background. Fixed-size integers and length prefixes are common building blocks for application-defined binary protocols. Byte order is selectable, with big-endian being network byte order.

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C++

#include <CkSocket.h>

void ChilkatSample(void)
    {
    bool success = false;

    CkSocket socket;

    //  Connect to the server using TLS.
    bool bTls = true;
    int maxWaitMs = 5000;
    success = socket.Connect("example.com",5000,bTls,maxWaitMs);
    if (success == false) {
        std::cout << socket.lastErrorText() << "\r\n";
        return;
    }

    //  Send the low 16 bits of the value as a two-byte integer.  Use true for network byte order
    //  (big-endian) or false for little-endian.
    bool bBigEndian = true;
    success = socket.SendInt16(1024,bBigEndian);
    if (success == false) {
        std::cout << socket.lastErrorText() << "\r\n";
        return;
    }

    std::cout << "16-bit integer sent." << "\r\n";
    }