Class: Win32::SSPI::SecurityBuffer

Inherits:
Object
  • Object
show all
Defined in:
lib/win32/sspi.rb

Overview

Creates binary representations of a SecBufferDesc structure, including the SecBuffer contained inside.

Constant Summary collapse

SECBUFFER_TOKEN =

Security token

2
TOKENBUFSIZE = 
12288
SECBUFFER_VERSION = 
0

Instance Method Summary collapse

Constructor Details

#initialize(buffer = nil) ⇒ SecurityBuffer

Returns a new instance of SecurityBuffer.



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# File 'lib/win32/sspi.rb', line 92

def initialize(buffer = nil)
  @buffer = buffer || "\0" * TOKENBUFSIZE
  @bufferSize = @buffer.length
  @type = SECBUFFER_TOKEN
end

Instance Method Details

#bufferSize ⇒ Object 



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# File 'lib/win32/sspi.rb', line 98

def bufferSize
  unpack
  @bufferSize
end

#bufferType ⇒ Object 



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# File 'lib/win32/sspi.rb', line 103

def bufferType
  unpack
  @type
end

#to_p ⇒ Object 



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# File 'lib/win32/sspi.rb', line 113

def to_p
  # Assumption is that when to_p is called we are going to get a packed structure. Therefore,
  # set @unpacked back to nil so we know to unpack when accessors are next accessed.
  @unpacked = nil
  # Assignment of inner structure to variable is very important here. Without it,
  # will not be able to unpack changes to the structure. Alternative, nested unpacks,
  # does not work (i.e. @struct.unpack("LLP12")[2].unpack("LLP12") results in "no associated pointer")
  @sec_buffer ||= [@bufferSize, @type, @buffer].pack("LLP")
  @struct ||= [SECBUFFER_VERSION, 1, @sec_buffer].pack("LLP")
end

#token ⇒ Object 



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# File 'lib/win32/sspi.rb', line 108

def token
  unpack
  @buffer
end