| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889 |
- /**
- * \file crc32c.h
- * Functions and types for CRC checks.
- *
- * Generated on Wed Nov 7 16:14:52 2012,
- * by pycrc v0.7.11, http://www.tty1.net/pycrc/
- * using the configuration:
- * Width = 32
- * Poly = 0x1edc6f41
- * XorIn = 0xffffffff
- * ReflectIn = True
- * XorOut = 0xffffffff
- * ReflectOut = True
- * Algorithm = table-driven
- *****************************************************************************/
- #ifndef __CRC32C_H__
- #define __CRC32C_H__
- #include <stdlib.h>
- #include <stdint.h>
- #ifdef __cplusplus
- extern "C" {
- #endif
- /**
- * The definition of the used algorithm.
- *****************************************************************************/
- #define CRC_ALGO_TABLE_DRIVEN 1
- /**
- * The type of the CRC values.
- *
- * This type must be big enough to contain at least 32 bits.
- *****************************************************************************/
- typedef uint32_t crc_t;
- /**
- * Reflect all bits of a \a data word of \a data_len bytes.
- *
- * \param data The data word to be reflected.
- * \param data_len The width of \a data expressed in number of bits.
- * \return The reflected data.
- *****************************************************************************/
- crc_t crc_reflect(crc_t data, size_t data_len);
- /**
- * Calculate the initial crc value.
- *
- * \return The initial crc value.
- *****************************************************************************/
- static inline crc_t crc_init(void)
- {
- return 0xffffffff;
- }
- /**
- * Update the crc value with new data.
- *
- * \param crc The current crc value.
- * \param data Pointer to a buffer of \a data_len bytes.
- * \param data_len Number of bytes in the \a data buffer.
- * \return The updated crc value.
- *****************************************************************************/
- crc_t crc_update(crc_t crc, const unsigned char *data, size_t data_len);
- /**
- * Calculate the final crc value.
- *
- * \param crc The current crc value.
- * \return The final crc value.
- *****************************************************************************/
- static inline crc_t crc_finalize(crc_t crc)
- {
- return crc ^ 0xffffffff;
- }
- #ifdef __cplusplus
- } /* closing brace for extern "C" */
- #endif
- #endif /* __CRC32C_H__ */
|