68 void zlib_inflate_blocks_reset(s, z, c)  in zlib_inflate_blocks_reset()  argument
69 inflate_blocks_statef *s;  in zlib_inflate_blocks_reset()
74     *c = s->check;
75   if (s->mode == CODES)
76     zlib_inflate_codes_free(s->sub.decode.codes, z);
77   s->mode = TYPE;
78   s->bitk = 0;
79   s->bitb = 0;
80   s->read = s->write = s->window;
81   if (s->checkfn != Z_NULL)
82     z->adler = s->check = (*s->checkfn)(0L, (const Bytef *)Z_NULL, 0);
90   inflate_blocks_statef *s;  local
92   s = &WS(z)->working_blocks_state;
93   s->hufts = WS(z)->working_hufts;
94   s->window = WS(z)->working_window;
95   s->end = s->window + w;
96   s->checkfn = c;
97   s->mode = TYPE;
98   zlib_inflate_blocks_reset(s, z, Z_NULL);
99   return s;
103 int zlib_inflate_blocks(s, z, r)  in zlib_inflate_blocks()  argument
104 inflate_blocks_statef *s;  in zlib_inflate_blocks()
120   while (1) switch (s->mode)
125       s->last = t & 1;
132           s->mode = LENS;               /* get length of stored block */
140             s->sub.decode.codes = zlib_inflate_codes_new(bl, bd, tl, td, z);
141             if (s->sub.decode.codes == Z_NULL)
148           s->mode = CODES;
152           s->mode = TABLE;
156           s->mode = B_BAD;
166         s->mode = B_BAD;
171       s->sub.left = (uInt)b & 0xffff;
173       s->mode = s->sub.left ? STORED : (s->last ? DRY : TYPE);
179       t = s->sub.left;
185       if ((s->sub.left -= t) != 0)
187       s->mode = s->last ? DRY : TYPE;
191       s->sub.trees.table = t = (uInt)b & 0x3fff;
195         s->mode = B_BAD;
202       	s->sub.trees.blens = WS(z)->working_blens;
205       s->sub.trees.index = 0;
206       s->mode = BTREE;
208       while (s->sub.trees.index < 4 + (s->sub.trees.table >> 10))
211         s->sub.trees.blens[border[s->sub.trees.index++]] = (uInt)b & 7;
214       while (s->sub.trees.index < 19)
215         s->sub.trees.blens[border[s->sub.trees.index++]] = 0;
216       s->sub.trees.bb = 7;
217       t = zlib_inflate_trees_bits(s->sub.trees.blens, &s->sub.trees.bb,
218 				  &s->sub.trees.tb, s->hufts, z);
223           s->mode = B_BAD;
226       s->sub.trees.index = 0;
227       s->mode = DTREE;
229       while (t = s->sub.trees.table,
230              s->sub.trees.index < 258 + (t & 0x1f) + ((t >> 5) & 0x1f))
235         t = s->sub.trees.bb;
237         h = s->sub.trees.tb + ((uInt)b & zlib_inflate_mask[t]);
243           s->sub.trees.blens[s->sub.trees.index++] = c;
253           i = s->sub.trees.index;
254           t = s->sub.trees.table;
258             s->mode = B_BAD;
263           c = c == 16 ? s->sub.trees.blens[i - 1] : 0;
265             s->sub.trees.blens[i++] = c;
267           s->sub.trees.index = i;
270       s->sub.trees.tb = Z_NULL;
278         t = s->sub.trees.table;
280 				       s->sub.trees.blens, &bl, &bd, &tl, &td,
281 				       s->hufts, z);
285             s->mode = B_BAD;
294         s->sub.decode.codes = c;
296       s->mode = CODES;
299       if ((r = zlib_inflate_codes(s, z, r)) != Z_STREAM_END)
300         return zlib_inflate_flush(s, z, r);
302       zlib_inflate_codes_free(s->sub.decode.codes, z);
304       if (!s->last)
306         s->mode = TYPE;
309       s->mode = DRY;
312       if (s->read != s->write)
314       s->mode = B_DONE;
328 int zlib_inflate_blocks_free(s, z)  in zlib_inflate_blocks_free()  argument
329 inflate_blocks_statef *s;  in zlib_inflate_blocks_free()
332   zlib_inflate_blocks_reset(s, z, Z_NULL);
337 void zlib_inflate_set_dictionary(s, d, n)  in zlib_inflate_set_dictionary()  argument
338 inflate_blocks_statef *s;  in zlib_inflate_set_dictionary()
342   memcpy(s->window, d, n);
343   s->read = s->write = s->window + n;
351 int zlib_inflate_blocks_sync_point(s)  in zlib_inflate_blocks_sync_point()  argument
352 inflate_blocks_statef *s;  in zlib_inflate_blocks_sync_point()
354   return s->mode == LENS;