Sample code for 30+ languages & platforms
C

Send a 32-bit Integer over a Socket

See more Socket/SSL/TLS Examples

Demonstrates Socket.SendInt32, which sends a value as a four-byte signed 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.

Chilkat C Downloads

C
#include <C_CkSocket.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkSocket socket;
    BOOL bTls;
    int maxWaitMs;
    BOOL bBigEndian;

    success = FALSE;

    socket = CkSocket_Create();

    //  Connect to the server using TLS.
    bTls = TRUE;
    maxWaitMs = 5000;
    success = CkSocket_Connect(socket,"example.com",5000,bTls,maxWaitMs);
    if (success == FALSE) {
        printf("%s\n",CkSocket_lastErrorText(socket));
        CkSocket_Dispose(socket);
        return;
    }

    //  Send the value as a four-byte signed integer.  Use TRUE for network byte order (big-endian) or
    //  FALSE for little-endian.
    bBigEndian = TRUE;
    success = CkSocket_SendInt32(socket,1000000,bBigEndian);
    if (success == FALSE) {
        printf("%s\n",CkSocket_lastErrorText(socket));
        CkSocket_Dispose(socket);
        return;
    }

    printf("32-bit integer sent.\n");


    CkSocket_Dispose(socket);

    }