C++

Open a Remote Directory on an SFTP Server

Demonstrates the Chilkat SFtp.OpenDir method, which opens a remote directory and returns a handle for reading its entries. The only argument is the directory path. Close the handle with CloseHandle when finished.

Background: Listing a directory in SFTP is a handle-based operation, mirroring file access: open the directory to get a handle, read its entries, then close it. The handle is passed to ReadDirListing to retrieve the names and attributes. As with file handles, the directory handle is a server-side resource that should be closed to avoid exhausting the server's limits.

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C++

#include <CkSFtp.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  Demonstrates the SFtp.OpenDir method, which opens a remote directory and returns a handle for
    //  reading its entries.  The only argument is the directory path.

    CkSFtp sftp;

    //  Connect, authenticate, and initialize the SFTP subsystem.
    int port = 22;
    success = sftp.Connect("sftp.example.com",port);
    if (success == false) {
        std::cout << sftp.lastErrorText() << "\r\n";
        return;
    }

    //  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.
    const char *password = "mySshPassword";

    success = sftp.AuthenticatePw("mySshLogin",password);
    if (success == false) {
        std::cout << sftp.lastErrorText() << "\r\n";
        return;
    }

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

    //  Open the remote directory.  OpenDir returns a handle string.
    const char *handle = sftp.openDir("subdir");
    if (sftp.get_LastMethodSuccess() == false) {
        std::cout << sftp.lastErrorText() << "\r\n";
        return;
    }

    std::cout << "Opened directory, handle = " << handle << "\r\n";

    //  The directory entries are read with ReadDirListing using this handle.

    //  Close the handle when finished.
    success = sftp.CloseHandle(handle);
    if (success == false) {
        std::cout << sftp.lastErrorText() << "\r\n";
        return;
    }

    sftp.Disconnect();
    }