new

# File lib/rubygems/package/tar_header.rb, line 133
  def initialize(vals)
    unless vals[:name] && vals[:size] && vals[:prefix] && vals[:mode] then
      raise ArgumentError, ":name, :size, :prefix and :mode required"
    end

    vals[:uid] ||= 0
    vals[:gid] ||= 0
    vals[:mtime] ||= 0
    vals[:checksum] ||= ""
    vals[:typeflag] = "0" if vals[:typeflag].nil? || vals[:typeflag].empty?
    vals[:magic] ||= "ustar"
    vals[:version] ||= "00"
    vals[:uname] ||= "wheel"
    vals[:gname] ||= "wheel"
    vals[:devmajor] ||= 0
    vals[:devminor] ||= 0

    FIELDS.each do |name|
      instance_variable_set "@#{name}", vals[name]
    end

    @empty = vals[:empty]
  end