Get an FTP Listing Entry's Size as a String

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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.

Background: Returning the size as text sidesteps integer-width limits entirely, which is useful in languages without a convenient 64-bit type and whenever you only need to display or log the value. Parse the string when you need to do arithmetic on it; otherwise it is ready to print as-is.

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    success := false

    //  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.

    ftp := chilkat.NewFtp2()

    ftp.SetHostname("ftp.example.com")
    ftp.SetUsername("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.SetPassword("myPassword")

    success = ftp.Connect()
    if success == false {
        fmt.Println(ftp.LastErrorText())
        ftp.DisposeFtp2()
        return
    }

    success = ftp.ChangeRemoteDir("public_html")
    if success == false {
        fmt.Println(ftp.LastErrorText())
        ftp.DisposeFtp2()
        return
    }

    //  GetDirCount retrieves the directory listing on the first call and returns the number of
    //  entries.  A negative return indicates failure.
    n := ftp.GetDirCount()
    if n < 0 {
        fmt.Println(ftp.LastErrorText())
        ftp.DisposeFtp2()
        return
    }

    var i int
    for i = 0; i <= n - 1; i++ {
        name := ftp.GetFilename(i)

        //  The string form avoids integer-size limits in languages without a convenient 64-bit type.
        fileSize := ftp.GetSizeStr(i)
        fmt.Println(*name, "  ", *fileSize, " bytes")
    }

    success = ftp.Disconnect()
    if success == false {
        fmt.Println(ftp.LastErrorText())
        ftp.DisposeFtp2()
        return
    }


    ftp.DisposeFtp2()