COSC_4P14_Assignment_2/include/crc.h

56 lines
1.0 KiB
C

/*
** CRC.H - header file for SNIPPETS CRC and checksum functions
* http://web.archive.org/web/20080303093609/http://c.snippets.org/snip_lister.php?fname=crc.h
*/
#ifndef CRC__H
#define CRC__H
#include <stdlib.h> /* For size_t */
#include "sniptype.h" /* For BYTE, WORD, DWORD */
/*
** File: ARCCRC16.C
*/
void init_crc_table(void);
WORD crc_calc(WORD crc, char* buf, unsigned nbytes);
void do_file(char* fn);
/*
** File: CRC-16.C
*/
WORD crc16(char* data_p, WORD length);
/*
** File: CRC-16F.C
*/
WORD updcrc(WORD icrc, BYTE* icp, size_t icnt);
/*
** File: CRC_32.C
*/
#define UPDC32(octet, crc) (crc_32_tab[((crc)\
^ ((BYTE)octet)) & 0xff] ^ ((crc) >> 8))
DWORD updateCRC32(unsigned char ch, DWORD crc);
Boolean_T crc32file(char* name, DWORD* crc, long* charcnt);
DWORD crc32buf(char* buf, size_t len);
/*
** File: CHECKSUM.C
*/
unsigned checksum(void* buffer, size_t len, unsigned int seed);
/*
** File: CHECKEXE.C
*/
void checkexe(char* fname);
#endif /* CRC__H */