(Unicode C) SOCKS4 and SOCKS5 Proxy for FTP

Demonstrates how to connect to an FTP server through a SOCKS4 or SOCKS5 proxy. Both SSL/TLS and non-secure FTP communications may use SOCKS4 and SOCKS5 proxies.

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#include <C_CkFtp2W.h>

void ChilkatSample(void)
    {
    HCkFtp2W ftp;
    BOOL success;
    const wchar_t *localFilename;
    const wchar_t *remoteFilename;

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

    ftp = CkFtp2W_Create();

    CkFtp2W_putHostname(ftp,L"ftp.example.com");
    CkFtp2W_putUsername(ftp,L"login");
    CkFtp2W_putPassword(ftp,L"password");

    // To use a SOCKS4 or SOCKS5 proxy, simply set the following
    // properties prior to connecting:
    // The SOCKS hostname may be a domain name or 
    // IP address:
    CkFtp2W_putSocksHostname(ftp,L"www.mysocksproxyserver.com");
    CkFtp2W_putSocksPort(ftp,1080);
    CkFtp2W_putSocksUsername(ftp,L"myProxyLogin");
    CkFtp2W_putSocksPassword(ftp,L"myProxyPassword");
    // Set the SOCKS version to 4 or 5 based on the version
    // of the SOCKS proxy server:
    CkFtp2W_putSocksVersion(ftp,5);
    // Note: SOCKS4 servers only support usernames without passwords.
    // SOCKS5 servers support full login/password authentication.

    // Connect and login to the FTP server.
    success = CkFtp2W_Connect(ftp);
    if (success != TRUE) {
        wprintf(L"%s\n",CkFtp2W_lastErrorText(ftp));
        CkFtp2W_Dispose(ftp);
        return;
    }

    // Change to the remote directory where the file is located.
    // This step is only necessary if the file is not in the root directory
    // for the FTP account.
    success = CkFtp2W_ChangeRemoteDir(ftp,L"junk");
    if (success != TRUE) {
        wprintf(L"%s\n",CkFtp2W_lastErrorText(ftp));
        CkFtp2W_Dispose(ftp);
        return;
    }

    // Download a file.
    localFilename = L"c:/temp/hamlet.xml";
    remoteFilename = L"hamlet.xml";

    success = CkFtp2W_GetFile(ftp,remoteFilename,localFilename);
    if (success != TRUE) {
        wprintf(L"%s\n",CkFtp2W_lastErrorText(ftp));
        CkFtp2W_Dispose(ftp);
        return;
    }

    success = CkFtp2W_Disconnect(ftp);

    wprintf(L"File Downloaded!\n");


    CkFtp2W_Dispose(ftp);

    }