ConnectFailReason

The ConnectFailReason property can be examined to determine the reason why the Connect method failed. The possible values are listed in the source code below:

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MS Windows Visual C/C++ Libraries

Linux/CentOS C/C++ Libraries

MAC OS X C/C++ Libraries

Solaris C/C++ Libraries

C++ Builder Libraries

#include <CkFtp2.h>

void ChilkatSample(void)
    {
    CkFtp2 ftp;

    bool success;

    //  Any string unlocks the component for the 1st 30-days.
    success = ftp.UnlockComponent("Anything for 30-day trial");
    if (success != true) {
        printf("%s\n",ftp.lastErrorText());
        return;
    }

    ftp.put_Hostname("ftp.****.com");
    ftp.put_Username("****");
    ftp.put_Password("****");

    //  Connect and login to the FTP server.
    success = ftp.Connect();
    if (success != true) {

        //  The possible failure reasons are:
        //  0 = success
        //  Non-SSL socket fail reasons:
        //   1 = empty hostname
        //   2 = DNS lookup failed
        //   3 = DNS timeout
        //   4 = Aborted by application.
        //   5 = Internal failure.
        //   6 = Connect Timed Out
        //   7 = Connect Rejected (or failed for some other reason)
        //  SSL failure reasons:
        //   100 = Internal schannel error
        //   101 = Failed to create credentials
        //   102 = Failed to send initial message to proxy.
        //   103 = Handshake failed.
        //   104 = Failed to obtain remote certificate.
        //  300 = asynch op in progress
        //  301 = login failure.
        // 
        int failReason;
        failReason = ftp.get_ConnectFailReason();

        printf("connect fail reason = %d\n",failReason);

        printf("%s\n",ftp.lastErrorText());
        return;
    }

    //  ...

    }