* @data: pointer to the buffer to CRC
* @len: length of the buffer
* @blocksize: CRC of each block (final block may be shorter)
- * @crcbits: the number of bits of crc you want (currently 32 maximum)
+ * @crcbits: the number of bits of crc you want (currently 64 maximum)
* @crc: the crcs (array will have (len + blocksize-1)/blocksize entries).
*
* Calculates the CRC of each block, and output the lower @crcbits to
* @crc array.
*/
void crc_of_blocks(const void *data, size_t len, unsigned int blocksize,
- unsigned int crcbits, uint32_t crc[]);
+ unsigned int crcbits, uint64_t crc[]);
/**
* crc_context_new - allocate and initialize state for crc_find_block
- * @blocksize: the sie of each block
- * @crcbits: the bits valid in the CRCs (<= 32)
- * @crc: array of block crcs
+ * @blocksize: the size of each block
+ * @crcbits: the bits valid in the CRCs (<= 64)
+ * @crc: array of block crcs (including final block, if any)
* @num_crcs: number of block crcs
+ * @tail_size: the size of final partial block, if any (< blocksize).
*
* Returns an allocated pointer to the structure for crc_find_block,
- * or NULL. Makes a copy of @crc and @num_crcs.
+ * or NULL. Makes a copy of @crc.
*/
struct crc_context *crc_context_new(size_t blocksize, unsigned crcbits,
- const uint32_t crc[], unsigned num_crcs);
+ const uint64_t crc[], unsigned num_crcs,
+ size_t final_size);
/**
* crc_read_block - search for block matches in the buffer.