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Versions: 13
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Contents
# -*- coding: binary -*-
module Rex
module Text
# We are re-opening the module to add these module methods.
# Breaking them up this way allows us to maintain a little higher
# degree of organisation and make it easier to find what you're looking for
# without hanging the underlying calls that we historically rely upon.
# @param str [String] Data to checksum
# @return [Fixnum] 8-bit checksum
def self.checksum8(str)
(str.unpack("C*").inject(:+) || 0) % 0x100
end
# @param str [String] Little-endian data to checksum
# @return [Fixnum] 16-bit checksum
def self.checksum16_le(str)
(str.unpack("v*").inject(:+) || 0) % 0x10000
end
# @param str [String] Big-endian data to checksum
# @return [Fixnum] 16-bit checksum
def self.checksum16_be(str)
(str.unpack("n*").inject(:+) || 0) % 0x10000
end
# @param str [String] Little-endian data to checksum
# @return [Fixnum] 32-bit checksum
def self.checksum32_le(str)
(str.unpack("V*").inject(:+) || 0) % 0x100000000
end
# @param str [String] Big-endian data to checksum
# @return [Fixnum] 32-bit checksum
def self.checksum32_be(str)
(str.unpack("N*").inject(:+) || 0) % 0x100000000
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems