#pragma prototyped
/*
* zip huffman codeing interface
*/
#ifndef _HUFF_H
#include "zip.h"
#include <vmalloc.h>
/* Huffman code lookup table entry--this entry is four bytes for machines
that have 16-bit pointers (e.g. PC's in the small or medium model).
Valid extra bits are 0..13. e == 15 is EOB (end of block), e == 16
means that v is a literal, 16 < e < 32 means that v is a pointer to
the next table, which codes e - 16 bits, and lastly e == 99 indicates
an unused code. If a code with e == 99 is looked up, this implies an
error in the data. */
struct Huff_s
{
uch e; /* number of extra bits or operation */
uch b; /* number of bits in this code or subcode */
union
{
ush n; /* literal, length base, or distance base */
Huff_t* t; /* pointer to next level of table */
} v;
};
#endif