| #ifndef __CKSUM_H |
| #define __CKSUM_H |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include <zircon/compiler.h> |
| |
| __BEGIN_CDECLS |
| |
| /* |
| * Computes the CRC-CCITT, starting with an initialization value. |
| * buf: the data on which to apply the checksum |
| * length: the number of bytes of data in 'buf' to be calculated. |
| */ |
| uint16_t crc16(const uint8_t *buf, size_t length); |
| |
| /* |
| * Computes an updated version of the CRC-CCITT from existing CRC. |
| * crc: the previous values of the CRC |
| * buf: the data on which to apply the checksum |
| * length: the number of bytes of data in 'buf' to be calculated. |
| */ |
| uint16_t update_crc16(uint16_t crc, const uint8_t *buf, size_t len); |
| |
| uint32_t crc32(uint32_t crc, const uint8_t *buf, size_t len); |
| |
| uint32_t crc32_combine(uint32_t crc1, uint32_t crc2, size_t len2); |
| |
| uint32_t adler32(uint32_t adler, const uint8_t *buf, size_t len); |
| |
| uint32_t adler32_combine(uint32_t adler1, uint32_t adler2, size_t len2); |
| |
| const uint32_t* get_crc_table(void); |
| |
| __END_CDECLS |
| |
| #endif |
| |
