Class: ELFTools::Note::Note

Inherits:
Object
  • Object
show all
Defined in:
lib/elftools/note.rb

Overview

Class of a note.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(header, stream, offset) ⇒ Note

Instantiate a ELFTools::Note::Note object.

Parameters:

  • header (ELF_Nhdr) —

    The note header.

  • stream (#pos=, #read) —

    Streaming object.

  • offset (Integer) —

    Start address of this note, includes the header.



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# File 'lib/elftools/note.rb', line 100

def initialize(header, stream, offset)
  @header = header
  @stream = stream
  @offset = offset
end

Instance Attribute Details

#header ⇒ ELFTools::Structs::ELF_Nhdr (readonly)

Returns Note header.

Returns:



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# File 'lib/elftools/note.rb', line 91

def header
  @header
end

#offset ⇒ Integer (readonly)

Returns Address of this note start, includes note header.

Returns:

  • (Integer) —

    Address of this note start, includes note header.



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# File 'lib/elftools/note.rb', line 93

def offset
  @offset
end

#stream ⇒ #pos=, #read (readonly)

Returns Streaming object.

Returns:

  • (#pos=, #read) —

    Streaming object.



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# File 'lib/elftools/note.rb', line 92

def stream
  @stream
end

Instance Method Details

#desc ⇒ String Also known as: description

Description of this note.

Returns:

  • (String) —

    The description.



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# File 'lib/elftools/note.rb', line 117

def desc
  return @desc if instance_variable_defined?(:@desc)

  stream.pos = @offset + SIZE_OF_NHDR + Util.align(header.n_namesz, 2)
  @desc = stream.read(header.n_descsz)
end

#name ⇒ String

Name of this note.

Returns:

  • (String) —

    The name.



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# File 'lib/elftools/note.rb', line 108

def name
  return @name if defined?(@name)

  stream.pos = @offset + SIZE_OF_NHDR
  @name = stream.read(header.n_namesz)[0..-2]
end