Swift

Set an FTP Compatibility Option

Demonstrates the Chilkat Ftp2.SetOption method, which enables or disables a named compatibility option. The only argument is the option name; matching is case-insensitive, and prefixing a recognized name with No- disables it.

Background: Real-world FTP servers have quirks, and these named options are targeted workarounds for specific ones — for example Microsoft-TLS-1.2-Workaround addresses a known interoperability issue. Most applications never need any of them; reach for SetOption only when a documented server problem calls for a specific fix, and use the exact recognized name.

Chilkat Swift Downloads

Download Chilkat for Swift

Swift


func chilkatTest() {
    var success: Bool = false

    //  Demonstrates the Ftp2.SetOption method, which enables or disables a named compatibility option.
    //  The only argument is the option name.  Prefix a name with "No-" to disable it.

    let ftp = CkoFtp2()!

    ftp.hostname = "ftp.example.com"
    ftp.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.password = "myPassword"

    success = ftp.connect()
    if success == false {
        print("\(ftp.lastErrorText!)")
        return
    }

    //  Enable a recognized compatibility workaround.  Option-name matching is case-insensitive.
    success = ftp.setOption(option: "Microsoft-TLS-1.2-Workaround")
    if success == false {
        print("\(ftp.lastErrorText!)")
        return
    }

    //  To disable it, prefix the name with "No-":
    success = ftp.setOption(option: "No-Microsoft-TLS-1.2-Workaround")
    if success == false {
        print("\(ftp.lastErrorText!)")
        return
    }

    print("Compatibility option toggled.")

    success = ftp.disconnect()
    if success == false {
        print("\(ftp.lastErrorText!)")
        return
    }


}