class PEdump::Loader::Section

Constants

Characteristics
EMPTY_DATA

Attributes

data[W]
hdr[RW]

Public Class Methods

new(x = nil, args = {}) click to toggle source
# File lib/pedump/loader/section.rb, line 8
def initialize x = nil, args = {}
  if x.is_a?(PEdump::IMAGE_SECTION_HEADER)
    @hdr = x.dup
  end
  @data = EMPTY_DATA.dup
  @delta = args[:delta] || 0
  @deferred_load_io   = args[:deferred_load_io]
  @deferred_load_pos  = args[:deferred_load_pos]  || (@hdr && (@hdr.PointerToRawData - @delta))
  @deferred_load_size = args[:deferred_load_size] || (@hdr && @hdr.SizeOfRawData)
  @image_base = args[:image_base] || 0
end

Public Instance Methods

data() click to toggle source
# File lib/pedump/loader/section.rb, line 27
def data
  if @data.empty? && @deferred_load_io && @deferred_load_pos && @deferred_load_size.to_i > 0
    begin
      old_pos = @deferred_load_io.tell
      @deferred_load_io.seek @deferred_load_pos
      @data = @deferred_load_io.binmode.read(@deferred_load_size) || EMPTY_DATA.dup
    ensure
      if @deferred_load_io && old_pos
        @deferred_load_io.seek old_pos
        @deferred_load_io = nil # prevent read only on 1st access to data
      end
    end
  end
  @data
end
flags() click to toggle source
# File lib/pedump/loader/section.rb, line 24
def flags; @hdr.Characteristics; end
flags=(f;) click to toggle source
# File lib/pedump/loader/section.rb, line 25
def flags= f; @hdr.Characteristics= f; end
inspect() click to toggle source
# File lib/pedump/loader/section.rb, line 47
def inspect
  r = "#<Section"
  r << (" name=%-10s" % name.inspect) if name
  r << " va=%8x vsize=%8x rawsize=%8s" % [
    va, vsize,
    @data.size > 0 ? @data.size.to_s(16) : (@deferred_load_io ? "<defer>" : 0)
  ]
  r << (" dlpos=%8x" % @deferred_load_pos) if @deferred_load_pos
  r << (" delta=%3x" % @delta) if @delta != 0
  r << ">"
end
name() click to toggle source
# File lib/pedump/loader/section.rb, line 20
def name;  @hdr.Name; end
range() click to toggle source
# File lib/pedump/loader/section.rb, line 43
def range
  va...(va+vsize)
end
rva() click to toggle source
# File lib/pedump/loader/section.rb, line 22
def rva ;  @hdr.VirtualAddress - @delta; end
va() click to toggle source
# File lib/pedump/loader/section.rb, line 21
def va  ;  @hdr.VirtualAddress + @image_base - @delta; end
vsize() click to toggle source
# File lib/pedump/loader/section.rb, line 23
def vsize; @hdr.VirtualSize; end