mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-17 17:53:56 +08:00
ddceed9d11
Based on 1 normalized pattern(s): gnu gpl v2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 5 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Enrico Weigelt <info@metux.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190602204655.013483115@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
34 lines
702 B
C
34 lines
702 B
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/* 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>
|
|
|
|
static 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((unsigned char const *)argv[1], strlen(argv[1]));
|
|
printf("0x%x\n", result);
|
|
return 0;
|
|
}
|