crc.h

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/*
**  CRC.H - header file for SNIPPETS CRC and checksum functions
*/
 
#ifndef CRC__H
#define CRC__H
 
#ifdef __cplusplus
#include <cstdlib>
#include <cinttypes>
#else
#include <stdbool.h>
#include <stdlib.h>           /* For size_t                 */
#include <stdint.h>
#endif
 
#ifdef __cplusplus
extern "C" {
#endif
 
/*
**  File: ARCCRC16.C
*/
 
void init_crc_table(void);
uint16_t crc_calc(uint16_t crc, char *buf, unsigned nbytes);
void do_file(char *fn);
 
/*
**  File: CRC-16.C
*/
 
uint16_t crc16(char *data_p, uint16_t length);
 
/*
**  File: CRC-16F.C
*/
 
uint16_t updcrc(uint16_t icrc, uint8_t *icp, size_t icnt);
 
/*
**  File: CRC_32.C
*/
 
#define UPDC32(octet,crc) (crc_32_tab[((crc)\
     ^ ((uint8_t)octet)) & 0xff] ^ ((crc) >> 8))
 
uint32_t updateCRC32(unsigned char ch, uint32_t crc);
bool crc32file(char *name, uint32_t *crc, long *charcnt);
 
uint32_t crc32buf(const char *buf, size_t len);
 
uint32_t crc32buf_with_oldcrc(const char *buf, size_t len, uint32_t oldcrc);
 
/*
**  File: CHECKSUM.C
*/
 
unsigned checksum(void *buffer, size_t len, unsigned int seed);
 
/*
**  File: CHECKEXE.C
*/
 
void checkexe(char *fname);
 
 
#ifdef __cplusplus
}
#endif
 
#endif /* CRC__H */