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f1b4824c86
Signed-off-by: John Crispin <blogic@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37007 3c298f89-4303-0410-b956-a3cf2f4a3e73
27 lines
454 B
C
27 lines
454 B
C
#ifndef CRC32_H
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#define CRC32_H
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#include <stdint.h>
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extern const uint32_t crc32_table[256];
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/* Return a 32-bit CRC of the contents of the buffer. */
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static inline uint32_t
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crc32(uint32_t val, const void *ss, int len)
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{
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const unsigned char *s = ss;
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while (--len >= 0)
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val = crc32_table[(val ^ *s++) & 0xff] ^ (val >> 8);
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return val;
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}
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static inline unsigned int crc32buf(char *buf, size_t len)
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{
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return crc32(0xFFFFFFFF, buf, len);
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}
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#endif
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