require 'dl/import'

module CRC
	extend DL::Importable
	dlload './libcrc.so'

	extern 'unsigned long get_crc_table(unsigned long)'
	extern 'void calc_crc_table()'
	extern 'void set_poly(unsigned long)'
	extern 'unsigned long iter_crc(unsigned long, unsigned long)'
	extern 'unsigned long inv_iter_crc(unsigned long, unsigned long)'
	extern 'unsigned long calc_crc(unsigned char *, unsigned long, unsigned long)'
	extern 'unsigned long solve(unsigned char *, unsigned long, unsigned long, unsigned long)'
	extern 'unsigned long not(unsigned long)'

	calc_crc_table
end