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C

Connect a TCP or TLS Socket

See more Socket/SSL/TLS Examples

Demonstrates Socket.Connect, which establishes a TCP connection to a host and port. Setting the TLS argument to _TRUE_ performs a TLS handshake after the TCP connection succeeds.

Background. The hostname may be a DNS name or a numeric IPv4/IPv6 address. The final argument bounds how long the connect attempt waits before failing. On failure, ConnectFailReason and LastErrorText provide detail.

Chilkat C Downloads

C
#include <C_CkSocket.h>

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

    success = FALSE;

    socket = CkSocket_Create();

    //  Connect to the server using TLS.  The 3rd argument enables the TLS handshake after the TCP
    //  connection succeeds; the 4th is the maximum time to wait, in milliseconds.
    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;
    }

    //  StringCharset controls the character encoding used when sending and receiving text.
    CkSocket_putStringCharset(socket,"utf-8");

    //  The socket is now connected and ready to send and receive data using whatever protocol the
    //  application implements.
    printf("Connected: %d\n",CkSocket_getIsConnected(socket));

    //  Close the connection when finished.  The argument is the maximum time to wait for a clean
    //  shutdown, in milliseconds.
    success = CkSocket_Close(socket,1000);
    if (success == FALSE) {
        printf("%s\n",CkSocket_lastErrorText(socket));
        CkSocket_Dispose(socket);
        return;
    }



    CkSocket_Dispose(socket);

    }