Class: Zip::ZipExtraField::IUnix

Inherits:
Generic show all
Defined in:
lib/amp/dependencies/zip/zip.rb

Overview

Info-ZIP Extra for UNIX uid/gid

Constant Summary collapse

HEADER_ID = 
"Ux"

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Generic

#initial_parse, name, register_map, #to_c_dir_bin, #to_local_bin

Constructor Details

#initialize(binstr = nil) ⇒ IUnix

Returns a new instance of IUnix.



1732
1733
1734
1735
1736
 
# File 'lib/amp/dependencies/zip/zip.rb', line 1732

def initialize(binstr = nil)
  @uid = 0
  @gid = 0
  binstr and merge(binstr)
end

Instance Attribute Details

#gid ⇒ Object

Returns the value of attribute gid.



1737
1738
1739
 
# File 'lib/amp/dependencies/zip/zip.rb', line 1737

def gid
  @gid
end

#uid ⇒ Object

Returns the value of attribute uid.



1737
1738
1739
 
# File 'lib/amp/dependencies/zip/zip.rb', line 1737

def uid
  @uid
end

Instance Method Details

#==(other) ⇒ Object 



1749
1750
1751
1752
 
# File 'lib/amp/dependencies/zip/zip.rb', line 1749

def ==(other)
  @uid == other.uid &&
  @gid == other.gid
end

#merge(binstr) ⇒ Object 



1739
1740
1741
1742
1743
1744
1745
1746
1747
 
# File 'lib/amp/dependencies/zip/zip.rb', line 1739

def merge(binstr)
  binstr == "" and return
  size, content = initial_parse(binstr)
  # size: 0 for central direcotry. 4 for local header
  return if(! size || size == 0)
  uid, gid = content.unpack("vv")
  @uid ||= uid
  @gid ||= gid
end

#pack_for_c_dir ⇒ Object 



1758
1759
1760
 
# File 'lib/amp/dependencies/zip/zip.rb', line 1758

def pack_for_c_dir
  ""
end

#pack_for_local ⇒ Object 



1754
1755
1756
 
# File 'lib/amp/dependencies/zip/zip.rb', line 1754

def pack_for_local
  [@uid, @gid].pack("vv")
end