Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

/* crc32hash.c - derived from linux/lib/crc32.c, GNU GPL v2 */

/* Usage example:

$ ./crc32hash "Dual Speed"

*/

#include <string.h>

#include <stdio.h>

#include <ctype.h>

#include <stdlib.h>

unsigned int crc32(unsigned char const *p, unsigned int len)

{

        int i;

        unsigned int crc = 0;

        while (len--) {

                crc ^= *p++;

                for (i = 0; i < 8; i++)

                        crc = (crc >> 1) ^ ((crc & 1) ? 0xedb88320 : 0);

        }

        return crc;

}

int main(int argc, char **argv) {

        unsigned int result;

        if (argc != 2) {

                printf("no string passed as argument\n");

                return -1;

        }

        result = crc32(argv[1], strlen(argv[1]));

        printf("0x%x\n", result);

        return 0;

}