class FFI::Pointer

Public Instance Methods

read_wstring(num_wchars = nil) click to toggle source
# File lib/win32/taskscheduler/sid.rb, line 5
def read_wstring(num_wchars = nil)
  if num_wchars.nil?
    # Find the length of the string
    length = 0
    last_char = nil
    while last_char != "\000\000"
      length += 1
      last_char = get_bytes(0, length * 2)[-2..-1]
    end

    num_wchars = length
  end

  wide_to_utf8(get_bytes(0, num_wchars * 2))
end
wide_to_utf8(wstring) click to toggle source
# File lib/win32/taskscheduler/sid.rb, line 21
def wide_to_utf8(wstring)
  # ensure it is actually UTF-16LE
  # Ruby likes to mark binary data as ASCII-8BIT
  wstring = wstring.force_encoding("UTF-16LE")

  # encode it all as UTF-8 and remove trailing CRLF and NULL characters
  wstring.encode("UTF-8").strip
end