Gem::Package::TarHeader.from

# File tmp/rubies/ruby-3.4.1/lib/rubygems/package/tar_header.rb, line 103
def self.from(stream)
  header = stream.read 512
  return EMPTY if header == EMPTY_HEADER

  fields = header.unpack UNPACK_FORMAT

  new name: fields.shift,
      mode: strict_oct(fields.shift),
      uid: oct_or_256based(fields.shift),
      gid: oct_or_256based(fields.shift),
      size: strict_oct(fields.shift),
      mtime: strict_oct(fields.shift),
      checksum: strict_oct(fields.shift),
      typeflag: fields.shift,
      linkname: fields.shift,
      magic: fields.shift,
      version: strict_oct(fields.shift),
      uname: fields.shift,
      gname: fields.shift,
      devmajor: strict_oct(fields.shift),
      devminor: strict_oct(fields.shift),
      prefix: fields.shift,

      empty: false
end