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Diffstat (limited to 'package/heirloom-cpio/src/unzip.h')
-rw-r--r-- | package/heirloom-cpio/src/unzip.h | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/package/heirloom-cpio/src/unzip.h b/package/heirloom-cpio/src/unzip.h deleted file mode 100644 index d53f81024..000000000 --- a/package/heirloom-cpio/src/unzip.h +++ /dev/null @@ -1,121 +0,0 @@ -/* - * Changes by Gunnar Ritter, Freiburg i. Br., Germany, May 2003. - * - * Derived from unzip 5.40. - * - * Sccsid @(#)unzip.h 1.5 (gritter) 7/16/04 - */ - -#include <inttypes.h> - -#define Trace(a) - -#define MAX_BITS 13 -#define HSIZE (1 << MAX_BITS) -#define WSIZE 65536L /* at least 64K for enhanced deflate */ - -#define redirSlide G.area.Slide - -#define NEXTBYTE (--G.incnt >= 0 ? (int)(*G.inptr++) : readbyte(&G)) - -#define READBITS(nbits, zdest) { \ - if (nbits > G.bits_left) { \ - int temp; \ - G.zipeof = 1; \ - while (G.bits_left <= 8 * (int)(sizeof G.bitbuf - 1) && \ - (temp = NEXTBYTE) != EOF) { \ - G.bitbuf |= (uint32_t)temp << G.bits_left; \ - G.bits_left += 8; \ - G.zipeof = 0; \ - } \ - } \ - zdest = (int16_t)((uint16_t)G.bitbuf & mask_bits[nbits]); \ - G.bitbuf >>= nbits; \ - G.bits_left -= nbits; \ -} - -#undef FALSE -#undef TRUE -enum { - FALSE = 0, - TRUE = 1 -}; - -union work { - struct { - int16_t Parent[HSIZE]; - uint8_t value[HSIZE]; - uint8_t Stack[HSIZE]; - } shrink; - uint8_t Slide[WSIZE]; -}; - -#define OUTBUFSIZ 4096 - -struct globals { - union work area; - uint8_t inbuf[4096]; - long long zsize; - long long uzsize; - uint8_t *inptr; - const char *tgt; - struct huft *fixed_tl; - struct huft *fixed_td; - struct huft *fixed_tl64; - struct huft *fixed_td64; - struct huft *fixed_tl32; - struct huft *fixed_td32; - const uint16_t *cplens; - const uint8_t *cplext; - const uint8_t *cpdext; - long csize; - long ucsize; - uint8_t outbuf[OUTBUFSIZ]; - uint8_t *outptr; - uint32_t *crc; - uint32_t bitbuf; - uint32_t wp; - uint32_t bb; - uint32_t bk; - unsigned outcnt; - int tfd; - int doswap; - int incnt; - int bits_left; - int zipeof; - int fixed_bl; - int fixed_bd; - int fixed_bl64; - int fixed_bd64; - int fixed_bl32; - int fixed_bd32; - int status; -}; - -/* 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 huft { - uint8_t e; /* number of extra bits or operation */ - uint8_t b; /* number of bits in this code or subcode */ - union { - uint16_t n; /* literal, length base, or distance base */ - struct huft *t; /* pointer to next level of table */ - } v; -}; - -extern const uint16_t mask_bits[]; - -extern void flush(struct globals *, const void *, size_t); -extern int readbyte(struct globals *); - -extern int huft_build(const unsigned *b, unsigned n, unsigned s, - const uint16_t *d, const uint8_t *e, - struct huft **t, int *m, - int bits, int nob, int eob); -extern void huft_free(struct huft *); |