Rust

Check FTP Connection and Login Status

Demonstrates the connection-status properties ConnectVerified, LoginVerified, ConnectFailReason, and Greeting.

Background: When Connect fails, these properties separate the possible causes: ConnectVerified shows whether the TCP connection was established at all, LoginVerified whether authentication then succeeded, and ConnectFailReason gives a numeric code pinpointing the failure — far more actionable than a generic error for distinguishing, say, an unreachable host from a bad password. The Greeting captures the server's opening banner, sometimes useful for identifying the server or its policies.

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Rust


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() {
    // ConnectFailReason gives a numeric code describing why Connect failed.
    println!("Connect failed, reason code: {}", ftp.connect_fail_reason());
    println!("{}", ftp.last_error_text());
    return;
}

// After a successful connect, these flags report what succeeded.
println!("TCP connection verified: {}", ftp.connect_verified());
println!("Login verified: {}", ftp.login_verified());

// The Greeting property holds the server's initial greeting banner.
println!("Server greeting: {}", ftp.greeting());

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