/****************************************************************/

/*  mdso: midipix dso scavenger                                 */

/*  Copyright (C) 2015--2016  Z. Gilboa                         */

/*  Released under GPLv2 and GPLv3; see COPYING.MDSO.           */

/****************************************************************/

#include <stdint.h>

#include <unistd.h>

#include <mdso/mdso.h>

#include <mdso/mdso_crc32.h>

static const uint32_t crc32_table[256] = MDSO_CRC32_TABLE;

uint32_t mdso_crc32_mbstr(const unsigned char * str, size_t * symlen)

{

	const unsigned char *	ch;

	uint32_t		crc32;

	crc32	= 0 ^ 0xFFFFFFFF;

	ch	= str;

	while (*ch) {

		crc32 = (crc32 >> 8) ^ crc32_table[(crc32 ^ *ch) & 0xFF];

		ch++;

	}

	if (symlen)

		*symlen = ch - str;

	return (crc32 ^ 0xFFFFFFFF);

}