Sample code for 30+ languages & platforms
Unicode C

Send Bytes on a Socket Connection

See more Socket/SSL/TLS Examples

Demonstrates how to send a mixture of binary (non-text) and text bytes on a socket connection.

Chilkat Unicode C Downloads

Unicode C
#include <C_CkSocketW.h>
#include <C_CkBinDataW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkSocketW socket;
    BOOL ssl;
    int maxWaitMillisec;
    int port;
    HCkBinDataW bd;

    success = FALSE;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    socket = CkSocketW_Create();

    // Connect to some host:port
    ssl = FALSE;
    maxWaitMillisec = 20000;
    port = 5555;
    success = CkSocketW_Connect(socket,L"test.com",port,ssl,maxWaitMillisec);
    if (success != TRUE) {
        wprintf(L"%s\n",CkSocketW_lastErrorText(socket));
        CkSocketW_Dispose(socket);
        return;
    }

    // We wish to send a 0x00 byte followed by the us-ascii string "10800"
    bd = CkBinDataW_Create();

    CkBinDataW_AppendByte(bd,0);
    CkBinDataW_AppendString(bd,L"10800",L"utf-8");

    // Send the entire contents of bd.
    success = CkSocketW_SendBd(socket,bd,0,0);
    if (success != TRUE) {
        wprintf(L"%s\n",CkSocketW_lastErrorText(socket));
        CkSocketW_Dispose(socket);
        CkBinDataW_Dispose(bd);
        return;
    }



    CkSocketW_Dispose(socket);
    CkBinDataW_Dispose(bd);

    }