Class: Rex::MachParsey::MachBase::MachHeader

Inherits:
GenericHeader show all
Defined in:
lib/rex/machparsey/machbase.rb

Instance Attribute Summary collapse

Attributes inherited from GenericStruct

#struct

Instance Method Summary collapse

Methods inherited from GenericStruct

#[], #keys, #method_missing, #v

Constructor Details

#initialize(rawdata) ⇒ MachHeader

Returns a new instance of MachHeader


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# File 'lib/rex/machparsey/machbase.rb', line 132

def initialize(rawdata)
  mach_header = MACH_HEADER_LSB.make_struct
  if !mach_header.from_s(rawdata)
    raise MachHeaderError, "Could't access Mach-O Magic", caller
  end

  if mach_header.v['magic'] == MH_MAGIC
    endian = ENDIAN_LSB
    bits = BITS_32
    mach_header = MACH_HEADER_LSB.make_struct
  elsif mach_header.v['magic'] == MH_CIGAM
    bits = BITS_32
    endian = ENDIAN_MSB
    mach_header = MACH_HEADER_MSB.make_struct
  elsif mach_header.v['magic'] == MH_MAGIC_64
    endian = ENDIAN_LSB
    bits = BITS_64
    mach_header = MACH_HEADER_LSB.make_struct
  elsif mach_header.v['magic'] == MH_CIGAM_64
    endian = ENDIAN_MSB
    bits = BITS_64
    mach_header = MACH_HEADER_MSB.make_struct
  else
    raise MachHeaderError, "Couldn't find Mach Magic", caller
  end

  if !mach_header.from_s(rawdata)
    raise MachHeaderError, "Could't process Mach-O Header", caller
  end

  self.struct = mach_header
  self.endian = endian
  self.bits = bits
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Rex::MachParsey::GenericStruct

Instance Attribute Details

#bitsObject

Returns the value of attribute bits


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# File 'lib/rex/machparsey/machbase.rb', line 130

def bits
  @bits
end

#endianObject

Returns the value of attribute endian


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# File 'lib/rex/machparsey/machbase.rb', line 130

def endian
  @endian
end