Method: Rant::Archive::Rubyzip::ZipEntry#read_c_dir_entry

Defined in:
lib/rant/archive/rubyzip.rb

#read_c_dir_entry(io) ⇒ Object

:nodoc:all



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# File 'lib/rant/archive/rubyzip.rb', line 455

def read_c_dir_entry(io)  #:nodoc:all
  staticSizedFieldsBuf = io.read(CDIR_ENTRY_STATIC_HEADER_LENGTH)
  unless (staticSizedFieldsBuf.size == CDIR_ENTRY_STATIC_HEADER_LENGTH)
  raise ZipError, "Premature end of file. Not enough data for zip cdir entry header"
  end
  
  cdirSignature          ,
  @version               , # version of encoding software
    @fstype                , # filesystem type
  @versionNeededToExtract,
  @gpFlags               ,
  @compression_method     ,
  lastModTime            ,
  lastModDate            ,
  @crc                   ,
  @compressed_size        ,
  @size                  ,
  nameLength             ,
  extraLength            ,
  commentLength          ,
  diskNumberStart        ,
  @internalFileAttributes,
  @externalFileAttributes,
  @localHeaderOffset     ,
  @name                  ,
  @extra                 ,
  @comment               = staticSizedFieldsBuf.unpack('VCCvvvvvVVVvvvvvVV')

  unless (cdirSignature == CENTRAL_DIRECTORY_ENTRY_SIGNATURE)
  raise ZipError, "Zip local header magic not found at location '#{localHeaderOffset}'"
  end
  set_time(lastModDate, lastModTime)
  
  @name                  = io.read(nameLength)
  if ZipExtraField === @extra
    @extra.merge(io.read(extraLength))
  else
    @extra = ZipExtraField.new(io.read(extraLength))
  end
  @comment               = io.read(commentLength)
  unless (@comment && @comment.length == commentLength)
  raise ZipError, "Truncated cdir zip entry header"
  end
end