Get an FTP Listing Entry's Size as a String

See more FTP Examples

Demonstrates the Chilkat Ftp2.GetSizeStr method, which returns the size in bytes of a cached directory-listing entry as a decimal string. The only argument is a zero-based index.

// Demonstrates the Ftp2.GetSizeStr method, which returns the size in bytes of a cached
// directory-listing entry as a decimal string.  The only argument is a zero-based index.

let ftp = chilkat::Ftp2::new();

ftp.set_hostname("ftp.example.com");
ftp.set_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.set_password("myPassword");

if ftp.connect().is_err() {
    println!("{}", ftp.last_error_text());
    return;
}

if ftp.change_remote_dir("public_html").is_err() {
    println!("{}", ftp.last_error_text());
    return;
}

// GetDirCount retrieves the directory listing on the first call and returns the number of
// entries.  A negative return indicates failure.
let n = ftp.get_dir_count();
if n < 0 {
    println!("{}", ftp.last_error_text());
    return;
}

for i in 0..n {
    let name = ftp.get_filename(i).unwrap_or_default();

    // The string form avoids integer-size limits in languages without a convenient 64-bit type.
    let file_size = ftp.get_size_str(i).unwrap_or_default();
    println!("{}  {} bytes", name, file_size);
}

if ftp.disconnect().is_err() {
    println!("{}", ftp.last_error_text());
    return;
}