From 72212c137c574b564723327af751c4054c7cfca6 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Tue, 11 Apr 2006 19:09:16 -0400 Subject: Initial commit --- crc32.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 crc32.h (limited to 'crc32.h') diff --git a/crc32.h b/crc32.h new file mode 100644 index 0000000..f3f8caf --- /dev/null +++ b/crc32.h @@ -0,0 +1,21 @@ +#ifndef CRC32_H +#define CRC32_H + +/* $Id: crc32.h,v 1.6 2005/11/07 11:15:09 gleixner Exp $ */ + +#include + +extern const uint32_t crc32_table[256]; + +/* Return a 32-bit CRC of the contents of the buffer. */ + +static inline uint32_t +crc32(uint32_t 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 -- cgit v1.2.3