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#include <sys/types.h>
#include <sys/stat.h>
#ifndef _WINDOWS
#include <netinet/in.h>
#include <unistd.h>
#include <stdlib.h>
#else
typedef unsigned char u_int8_t;
typedef unsigned short u_int16_t;
typedef unsigned long u_int32_t;
#endif
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include "pdb.h"
#define VERSION "deSilo version 0.4a by Clement"
struct s_tree {
struct s_tree *branch[2];
u_int32_t value;
};
struct s_attrib {
u_int32_t offset;
u_int16_t value;
};
struct s_huffman {
struct s_tree *tree;
u_int8_t *size;
u_int16_t *code;
u_int32_t num;
};
#define HM_SHORT 0x10
#define HM_MEDIUM 0x11
#define HM_LONG 0x12
class iSilo : public Cpdb
{
CStyle mystyle;
u_int16_t BlockSize;
int pos;
u_int32_t buf[256];
struct s_huffman *master, *lz, *text;
u_int32_t cur_rec;
u_int8_t buffer[4096];
u_int32_t buffer_size;
u_int16_t current_pos, bsize;
u_int32_t filepos, filesize, textsize;
u_int16_t attr_start, attr_end, attr_num, current_attr, attr_rec;
u_int16_t pos_hi;
u_int16_t last_pos, last_value;
s_attrib* attr;
void init_tables(void);
int code2tree(struct s_huffman *h);
u_int32_t swap_bits(u_int32_t n, int num);
u_int32_t *huffman_get(struct s_huffman *h);
int size2code(struct s_huffman *h);
void read_attr();
struct s_huffman *huffman_create(u_int32_t num);
void kill_tree(struct s_tree *tree);
void kill_huffman(struct s_huffman *h);
int read_size(struct s_huffman *prev, struct s_huffman *h);
void mymemcpy(u_int8_t *dst, u_int8_t *src, u_int32_t num);
int read_tree(struct s_huffman *prev, struct s_huffman *curr);
bool reset_trees();
u_int32_t get_bits(int num);
u_int32_t get_swapped(int num);
int read_text();
u_int32_t getreccode();
bool process_record();
public:
iSilo() : pos(0), master(NULL), lz(NULL), text(NULL), cur_rec(0), buffer_size(4096), current_pos(0), bsize(0), BlockSize(4096)
{
}
~iSilo();
int getch();
void getch(tchar& ch, CStyle& sty, unsigned long& pos);
MarkupType PreferredMarkup()
{
return cNONE;
}
void sizes(unsigned long& _file, unsigned long& _text)
{
_file = filesize;
_text = textsize;
}
bool hasrandomaccess() { return false; }
int OpenFile(const char* src);
unsigned int locate()
{
return filepos;
}
void locate(unsigned int n);
QString about();
};
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