package main

import (
    "archive/tar"
    "fmt"
    "io/ioutil"
    "os"
    "path/filepath"
)

func main() {
    tempdir, err := ioutil.TempDir("", "")
    if err != nil {
        panic(err)
    }
    defer os.RemoveAll(tempdir)

    os.Symlink(`c:\`, filepath.Join(tempdir, "directorysymlink"))
    // os.Symlink("/", filepath.Join(tempdir, "directorysymlink"))

    fi, err := os.Lstat(filepath.Join(tempdir, "directorysymlink"))
    if err != nil {
        panic(err)
    }
    hdr, err := tar.FileInfoHeader(fi, "directorysymlink")
    if err != nil {
        panic(err)
    }

    fmt.Printf("Typeflag: %c, Mode: 0x%x, Linkname: %q\n", hdr.Typeflag, hdr.Mode, hdr.Linkname)
}