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The Fred Fish Collection 1.5
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ffcollection-1-5-1992-11.iso
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ff_progs
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fileutil
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scan.lha
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src
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lh5.h
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C/C++ Source or Header
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1992-05-21
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2KB
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83 lines
/* Define FIXFNAME to activate the fixfname() function that converts
filename syntax to be acceptable to the host system */
/* #define FIXFNAME */
/*
OPEN(x) open file x for read
CREATE(x) create file x for read/write
Files opened by OPEN() and CREATE() must be opened in
binary mode (not involving any newline translation).
*/
#define NEED_B
/* Conventional stdio, using "b" suffix for binary open */
#ifdef NEED_B
#define CREATE(x) fopen(x, "wb")
#define OPEN(x) fopen(x, "rb")
#else
/* some systems (e.g. Ultrix) don't like a trailinb "b" */
#define CREATE(x) fopen(x, "w")
#define OPEN(x) fopen(x, "r")
#endif
/* don't change the rest of this file */
#define MEM_BLOCK_SIZE 8192
/* Functions defined by Booz */
int addbfcrc();
void message();
int fixfname ();
/* Standard functions */
char *malloc();
#include <stdio.h>
typedef unsigned char uchar; /* 8 bits or more */
typedef unsigned int uint; /* 16 bits or more */
typedef unsigned short ushort; /* 16 bits or more */
typedef unsigned long ulong; /* 32 bits or more */
uint decode_c();
uint decode_p();
uint getbits();
#define DICBIT 13 /* 12(-lh4-) or 13(-lh5-) */
#define DICSIZ ((unsigned) 1 << DICBIT)
/* Define some things if they aren't defined in header files */
#ifndef CHAR_BIT
# define CHAR_BIT 8
#endif
#ifndef UCHAR_MAX
# define UCHAR_MAX 255
#endif
/* io.c */
extern FILE *arcfile;
extern ulong bitbuf;
#define BITBUFSIZ (CHAR_BIT * sizeof bitbuf)
/* encode.c and decode.c */
#define MATCHBIT 8 /* bits for MAXMATCH - THRESHOLD */
#define MAXMATCH 256 /* formerly F (not more than UCHAR_MAX + 1) */
#define THRESHOLD 3 /* choose optimal value */
#define PERC_FLAG ((unsigned) 0x8000)
/* huf.c */
#define NC (UCHAR_MAX + MAXMATCH + 2 - THRESHOLD)
/* alphabet = {0, 1, 2, ..., NC - 1} */
#define CBIT 9 /* $\lfloor \log_2 NC \rfloor + 1$ */
#define CODE_BIT 16 /* codeword length */
extern ushort left[], right[];