class Rex::OLE::Util

Public Class Methods

Hexify32array(arr) click to toggle source
# File lib/rex/ole/util.rb, line 12
def self.Hexify32array(arr)
  ret = ""
  arr.each { |dw|
    ret << " " if ret.length > 0
    ret << "0x%08x" % dw
  }
  ret
end
Printable(buf) click to toggle source
# File lib/rex/ole/util.rb, line 21
def self.Printable(buf)
  ret = ""
  buf.unpack('C*').each { |byte|
    ch = byte.chr
    if (byte < 0x20 || byte > 0x7e)
      ret << "\\x" + ch.unpack('H*')[0]
    else
      ret << ch
    end
  }
  ret
end
get16(buf, offset) click to toggle source
# File lib/rex/ole/util.rb, line 98
def self.get16(buf, offset)
  @endian = LITTLE_ENDIAN if not @endian
  if (@endian == LITTLE_ENDIAN)
    buf[offset,2].unpack('v')[0]
  else
    buf[offset,2].unpack('n')[0]
  end
end
get32(buf, offset) click to toggle source
# File lib/rex/ole/util.rb, line 62
def self.get32(buf, offset)
  @endian = LITTLE_ENDIAN if not @endian
  if (@endian == LITTLE_ENDIAN)
    buf[offset,4].unpack('V')[0]
  else
    buf[offset,4].unpack('N')[0]
  end
end
get32array(buf) click to toggle source
# File lib/rex/ole/util.rb, line 80
def self.get32array(buf)
  @endian = LITTLE_ENDIAN if not @endian
  if (@endian == LITTLE_ENDIAN)
    buf.unpack('V*')
  else
    buf.unpack('N*')
  end
end
get64(buf, offset) click to toggle source
# File lib/rex/ole/util.rb, line 39
def self.get64(buf, offset)
  @endian = LITTLE_ENDIAN if not @endian
  if (@endian == LITTLE_ENDIAN)
    arr = buf[offset,8].unpack('VV')
    return (arr[0] + (arr[1] << 32))
  else
    arr = buf[offset,8].unpack('NN')
    return ((arr[0] << 32) + arr[1])
  end
end
get8(buf, offset) click to toggle source
# File lib/rex/ole/util.rb, line 116
def self.get8(buf, offset)
  buf[offset,1].unpack('C')[0]
end
getUnicodeString(buf) click to toggle source
# File lib/rex/ole/util.rb, line 125
def self.getUnicodeString(buf)
  buf = buf.unpack('v*').pack('C*')
  if (idx = buf.index(0x00.chr))
    buf.slice!(idx, buf.length)
  end
  buf
end
name_is_valid(name) click to toggle source
# File lib/rex/ole/util.rb, line 142
def self.name_is_valid(name)
  return nil if (name.length > 31)
  (0..0x1f).to_a.each { |x|
    return nil if (name.include?(x.chr))
  }
  return true
end
pack16(value) click to toggle source
# File lib/rex/ole/util.rb, line 107
def self.pack16(value)
  @endian = LITTLE_ENDIAN if not @endian
  if (@endian == LITTLE_ENDIAN)
    [value].pack('v')
  else
    [value].pack('n')
  end
end
pack32(value) click to toggle source
# File lib/rex/ole/util.rb, line 71
def self.pack32(value)
  @endian = LITTLE_ENDIAN if not @endian
  if (@endian == LITTLE_ENDIAN)
    [value].pack('V')
  else
    [value].pack('N')
  end
end
pack32array(arr) click to toggle source
# File lib/rex/ole/util.rb, line 89
def self.pack32array(arr)
  @endian = LITTLE_ENDIAN if not @endian
  if (@endian == LITTLE_ENDIAN)
    arr.pack('V*')
  else
    arr.pack('N*')
  end
end
pack64(value) click to toggle source
# File lib/rex/ole/util.rb, line 50
def self.pack64(value)
  @endian = LITTLE_ENDIAN if not @endian
  arr = []
  arr << (value & 0xffffffff)
  arr << (value >> 32)
  if (@endian == LITTLE_ENDIAN)
    arr.pack('VV')
  else
    arr.reverse.pack('NN')
  end
end
pack8(value) click to toggle source
# File lib/rex/ole/util.rb, line 120
def self.pack8(value)
  [value].pack('C')
end
putUnicodeString(buf) click to toggle source
# File lib/rex/ole/util.rb, line 133
def self.putUnicodeString(buf)
  buf = buf.unpack('C*').pack('v*')
  if (buf.length < 0x40)
    buf << "\x00" * (0x40 - buf.length)
  end
  buf
end
set_endian(endian) click to toggle source
# File lib/rex/ole/util.rb, line 35
def self.set_endian(endian)
  @endian = endian
end