#ifndef _GUNZIP_H#define _GUNZIP_H#define ERR_BADMAGIC         1#define ERR_BADMETHOD        2#define ERR_ENCRYPTED        3#define ERR_MULTIPART        4#define ERR_INVALIDFLAGS     5#define ERR_BADFORMAT1       6#define ERR_BADFORMAT2       7#define ERR_MEM              8#define ERR_BADFORMAT        9#define ERR_CRC              10#define ERR_LENGTH           11#define	PACK_MAGIC     "\037\036" /* Magic header for packed files */#define	GZIP_MAGIC     "\037\213" /* Magic header for gzip files, 1F 8B */#define	OLD_GZIP_MAGIC "\037\236" /* Magic header for gzip 0.5 = freeze 1.x */#define	LZH_MAGIC      "\037\240" /* Magic header for SCO LZH Compress files*/#define PKZIP_MAGIC    "\120\113\003\004" /* Magic header for pkzip files *//* gzip flag byte */#define ASCII_FLAG   0x01 /* bit 0 set: file probably ascii text */#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */#define EXTRA_FIELD  0x04 /* bit 2 set: extra field present */#define ORIG_NAME    0x08 /* bit 3 set: original file name present */#define COMMENT      0x10 /* bit 4 set: file comment present */#define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */#define RESERVED     0xC0 /* bit 6,7:   reserved *//* If B_MAX needs to be larger than 16, then h and x[] should be ulong. */#define B_MAX 16         /* maximum bit length of any code (16 for explode) */#define N_MAX 288       /* maximum number of codes in any set */#define NULL            0typedef unsigned char   uchar;typedef unsigned short  ushort;typedef unsigned long   ulong;typedef ushort          huft_code;typedef uchar           huft_bits;#define get_uchar(guz) (uchar)(guz->inptr < guz->insize ? guz->inbuf[guz->inptr++] : 0)#define get_ushort(guz) ((ushort)get_uchar(guz) | (ushort)get_uchar(guz) << 8)#define get_ulong(guz) ((ulong)get_uchar(guz)|(ulong)get_uchar(guz)<<8|(ulong)get_uchar(guz)<<16|(ulong)get_uchar(guz) << 24)#define output_char(guz, ch) (guz)->outbuf[(guz)->outptr++] = chtypedef struct {	uchar *inbuf;	ulong insize;	ulong inptr;	uchar *outbuf;	ulong outsize;	ulong outptr;	ulong bitbuf;	ulong bufbits;} gunzip_t;int gunzip(unsigned char *inbuf, unsigned long *insize,	unsigned char *outbuf, unsigned long *outsize);#endif	/* _GUNZIP_H */