C++

Download Multiple FTP Files by Wildcard (MGET)

Demonstrates the Chilkat Ftp2.MGetFiles method, which downloads files in the current remote directory matching a pattern into a local directory. The first argument is the remote pattern and the second is the local directory. It returns the number of files downloaded, or -1 on failure.

Note: The local paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: This is FTP's mget: fetch everything matching a wildcard in one call rather than looping yourself. It operates on the current remote directory — hence the ChangeRemoteDir first — and does not descend into subdirectories; use DownloadTree for recursive transfers. The count return lets you confirm how many matched, with -1 signaling an outright failure to check separately from a legitimate zero.

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C++

#include <CkFtp2.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  Demonstrates the Ftp2.MGetFiles method, which downloads files in the current remote directory
    //  matching a pattern into a local directory.  The 1st argument is the remote pattern and the 2nd
    //  is the local directory.  It returns the number of files downloaded, or -1 on failure.

    CkFtp2 ftp;

    ftp.put_Hostname("ftp.example.com");
    ftp.put_Username("myFtpLogin");

    //  Normally you would not hard-code the password in source.  You should instead obtain it
    //  from an interactive prompt, environment variable, or a secrets vault.
    ftp.put_Password("myPassword");

    success = ftp.Connect();
    if (success == false) {
        std::cout << ftp.lastErrorText() << "\r\n";
        return;
    }

    success = ftp.ChangeRemoteDir("public_html");
    if (success == false) {
        std::cout << ftp.lastErrorText() << "\r\n";
        return;
    }

    //  Download all .html files from the current remote directory.  Subdirectories are not traversed.
    int numDownloaded = ftp.MGetFiles("*.html","qa_output/site");
    if (numDownloaded < 0) {
        std::cout << ftp.lastErrorText() << "\r\n";
        return;
    }

    std::cout << "Downloaded " << numDownloaded << " files." << "\r\n";

    success = ftp.Disconnect();
    if (success == false) {
        std::cout << ftp.lastErrorText() << "\r\n";
        return;
    }
    }