Gem::Package::TarReader::Entry#full_name

# File tmp/rubies/ruby-3.0.5/lib/rubygems/package/tar_reader/entry.rb, line 64
def full_name
  if @header.prefix != ""
    File.join @header.prefix, @header.name
  else
    @header.name
  end
rescue ArgumentError => e
  raise unless e.message == 'string contains null byte'
  raise Gem::Package::TarInvalidError,
        'tar is corrupt, name contains null byte'
end