Class: RubySMB::Field::EaInfoArray

Inherits:
BinData::Array
  • Object
show all
Defined in:
lib/ruby_smb/field/ea_info_array.rb

Overview

Convenience class that extend the normal BinData::Array for use with FileFullEaInfo. This array will automatically updates the FileFullEaInfo#next_entry_offset of each element in the array.

Instance Method Summary collapse

Instance Method Details

#[]=(index, value) ⇒ Object

Overrides the method from BinData::Array to call #update_offsets

Raises:



12
13
14
15
16
17
18
19
 
# File 'lib/ruby_smb/field/ea_info_array.rb', line 12

def []=(index, value)
  unless value.is_a? RubySMB::Field::FileFullEaInfo
    raise ArgumentError, "This array can only contain RubySMB::Field::FileFullEaInfo objects"
  end
  retval = super(index,value)
  update_offsets
  retval
end

#insert(index, *objs) ⇒ self

Overrides the insert method in BinData::Array to call #update_offsets.

Parameters:

  • index (Integer) —

    the index to insert into the array at

  • objs (Array<Object>) —

    the objects to be inserted

Returns:

  • (self)

Raises:



28
29
30
31
32
33
34
35
36
 
# File 'lib/ruby_smb/field/ea_info_array.rb', line 28

def insert(index, *objs)
  objs.each do |x|
    unless x.is_a? RubySMB::Field::FileFullEaInfo
      raise ArgumentError, "This array can only contain RubySMB::Field::FileFullEaInfo objects"
    end
  end
  super(index, *objs)
  update_offsets
end

#update_offsets ⇒ self

Iterates through all of the elements in the array and dynamically updates all of the next_record_offset fields to properly reflect the chain.

Returns:

  • (self) 


43
44
45
46
47
48
49
50
51
52
53
54
 
# File 'lib/ruby_smb/field/ea_info_array.rb', line 43

def update_offsets
  self.each do |element|
    if element == self.last
      # If this is the end of our array, the offset must be 0
      element.next_entry_offset = 0
    else
      # If there is an element after this one, set the offset
      element.next_entry_offset = element.do_num_bytes
    end
  end
  self
end