Sample code for 30+ languages & platforms
Unicode C

SSL Client Example

See more Socket/SSL/TLS Examples

Demonstrates how to connect to an SSL server, send a simple message, receive a simple response, and disconnect.

Chilkat Unicode C Downloads

Unicode C
#include <C_CkSocketW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkSocketW socket;
    BOOL ssl;
    int maxWaitMillisec;
    const wchar_t *sslServerHost;
    int sslServerPort;
    const wchar_t *receivedMsg;

    success = FALSE;

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

    socket = CkSocketW_Create();

    ssl = TRUE;
    maxWaitMillisec = 20000;

    // The SSL server hostname may be an IP address, a domain name,
    // or "localhost".  You'll need to change this:

    sslServerHost = L"123.123.88.88";
    sslServerPort = 8123;

    // Connect to the SSL server:
    success = CkSocketW_Connect(socket,sslServerHost,sslServerPort,ssl,maxWaitMillisec);
    if (success != TRUE) {
        wprintf(L"%s\n",CkSocketW_lastErrorText(socket));
        CkSocketW_Dispose(socket);
        return;
    }

    // Set maximum timeouts for reading an writing (in millisec)
    CkSocketW_putMaxReadIdleMs(socket,20000);
    CkSocketW_putMaxSendIdleMs(socket,20000);

    // Send a "Hello Server! -EOM-" message:
    success = CkSocketW_SendString(socket,L"Hello Server! -EOM-");
    if (success != TRUE) {
        wprintf(L"%s\n",CkSocketW_lastErrorText(socket));
        CkSocketW_Dispose(socket);
        return;
    }

    // The server (in this example) is going to send a "Hello Client! -EOM-" 
    // message.  Read it:
    receivedMsg = CkSocketW_receiveUntilMatch(socket,L"-EOM-");
    if (CkSocketW_getLastMethodSuccess(socket) != TRUE) {
        wprintf(L"%s\n",CkSocketW_lastErrorText(socket));
        CkSocketW_Dispose(socket);
        return;
    }

    // Close the connection with the server
    // Wait a max of 20 seconds (20000 millsec)
    success = CkSocketW_Close(socket,20000);

    wprintf(L"%s\n",receivedMsg);


    CkSocketW_Dispose(socket);

    }