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