File: crc32.h

package info (click to toggle)
kernel-source-2.4.14 2.4.14-1
  • links: PTS
  • area: main
  • in suites: woody
  • size: 139,160 kB
  • ctags: 428,423
  • sloc: ansic: 2,435,554; asm: 141,119; makefile: 8,258; sh: 3,099; perl: 2,561; yacc: 1,177; cpp: 755; tcl: 577; lex: 352; awk: 251; lisp: 218; sed: 72
file content (21 lines) | stat: -rw-r--r-- 434 bytes parent folder | download | duplicates (8)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
#ifndef CRC32_H
#define CRC32_H

/* $Id: crc32.h,v 1.3 2001/02/26 14:44:37 dwmw2 Exp $ */

#include <linux/types.h>

extern const __u32 crc32_table[256];

/* Return a 32-bit CRC of the contents of the buffer. */

static inline __u32 
crc32(__u32 val, const void *ss, int len)
{
	const unsigned char *s = ss;
        while (--len >= 0)
                val = crc32_table[(val ^ *s++) & 0xff] ^ (val >> 8);
        return val;
}

#endif