#define NULL ((void *) 0)
#endif
- /* common constants */
+ /* common constants */
#define DEFLATED 8
#define MAX_MATCH 258
/* The minimum and maximum match lengths */
- /* functions */
+ /* functions */
#include <linux/string.h>
#define zmemcpy memcpy
/* void zcfree OF((voidpf opaque, voidpf ptr)); */
#define ZALLOC(strm, items, size) \
- (*((strm)->zalloc))((strm)->opaque, (items), (size))
+ (*((strm)->zalloc))((strm)->opaque, (items), (size))
#define ZFREE(strm, addr, size) \
(*((strm)->zfree))((strm)->opaque, (voidpf)(addr), (size))
#define TRY_FREE(s, p, n) {if (p) ZFREE(s, p, n);}
NEEDBYTE
if (((z->state->sub.method = NEXTBYTE) & 0xf) != DEFLATED)
{
- z->state->mode = BAD;
- z->msg = "unknown compression method";
- z->state->sub.marker = 5; /* can't try inflateSync */
- break;
+ z->state->mode = BAD;
+ z->msg = "unknown compression method";
+ z->state->sub.marker = 5; /* can't try inflateSync */
+ break;
}
if ((z->state->sub.method >> 4) + 8 > z->state->wbits)
{
- z->state->mode = BAD;
- z->msg = "invalid window size";
- z->state->sub.marker = 5; /* can't try inflateSync */
- break;
+ z->state->mode = BAD;
+ z->msg = "invalid window size";
+ z->state->sub.marker = 5; /* can't try inflateSync */
+ break;
}
z->state->mode = FLAG;
case FLAG:
NEEDBYTE
if ((b = NEXTBYTE) & 0x20)
{
- z->state->mode = BAD;
- z->msg = "invalid reserved bit";
- z->state->sub.marker = 5; /* can't try inflateSync */
- break;
+ z->state->mode = BAD;
+ z->msg = "invalid reserved bit";
+ z->state->sub.marker = 5; /* can't try inflateSync */
+ break;
}
if (((z->state->sub.method << 8) + b) % 31)
{
- z->state->mode = BAD;
- z->msg = "incorrect header check";
- z->state->sub.marker = 5; /* can't try inflateSync */
- break;
+ z->state->mode = BAD;
+ z->msg = "incorrect header check";
+ z->state->sub.marker = 5; /* can't try inflateSync */
+ break;
}
Trace((stderr, "inflate: zlib header ok\n"));
z->state->mode = BLOCKS;
r = inflate_packet_flush(z->state->blocks);
if (r == Z_DATA_ERROR)
{
- z->state->mode = BAD;
- z->state->sub.marker = 0; /* can try inflateSync */
- break;
+ z->state->mode = BAD;
+ z->state->sub.marker = 0; /* can try inflateSync */
+ break;
}
if (r != Z_STREAM_END)
- return r;
+ return r;
r = Z_OK;
inflate_blocks_reset(z->state->blocks, z, &z->state->sub.check.was);
if (z->state->nowrap)
{
- z->state->mode = DONE;
- break;
+ z->state->mode = DONE;
+ break;
}
z->state->mode = CHECK4;
case CHECK4:
if (z->state->sub.check.was != z->state->sub.check.need)
{
- z->state->mode = BAD;
- z->msg = "incorrect data check";
- z->state->sub.marker = 5; /* can't try inflateSync */
- break;
+ z->state->mode = BAD;
+ z->msg = "incorrect data check";
+ z->state->sub.marker = 5; /* can't try inflateSync */
+ break;
}
Trace((stderr, "inflate: zlib check ok\n"));
z->state->mode = DONE;
struct {
inflate_huft *tl, *td; /* trees to free */
inflate_codes_statef
- *codes;
+ *codes;
} decode; /* if CODES, current state */
} sub; /* submode */
uInt last; /* true if this block is the last block */
/* Table for deflate from PKZIP's appnote.txt. */
local uInt border[] = { /* Order of the bit length code lengths */
- 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
+ 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
/*
Notes beyond the 1.93a appnote.txt:
s->last = t & 1;
switch (t >> 1)
{
- case 0: /* stored */
- Trace((stderr, "inflate: stored block%s\n",
- s->last ? " (last)" : ""));
- DUMPBITS(3)
- t = k & 7; /* go to byte boundary */
- DUMPBITS(t)
- s->mode = LENS; /* get length of stored block */
- break;
- case 1: /* fixed */
- Trace((stderr, "inflate: fixed codes block%s\n",
- s->last ? " (last)" : ""));
- {
- uInt bl, bd;
- inflate_huft *tl, *td;
-
- inflate_trees_fixed(&bl, &bd, &tl, &td);
- s->sub.decode.codes = inflate_codes_new(bl, bd, tl, td, z);
- if (s->sub.decode.codes == Z_NULL)
- {
- r = Z_MEM_ERROR;
- LEAVE
- }
- s->sub.decode.tl = Z_NULL; /* don't try to free these */
- s->sub.decode.td = Z_NULL;
- }
- DUMPBITS(3)
- s->mode = CODES;
- break;
- case 2: /* dynamic */
- Trace((stderr, "inflate: dynamic codes block%s\n",
- s->last ? " (last)" : ""));
- DUMPBITS(3)
- s->mode = TABLE;
- break;
- case 3: /* illegal */
- DUMPBITS(3)
- s->mode = BADB;
- z->msg = "invalid block type";
- r = Z_DATA_ERROR;
- LEAVE
+ case 0: /* stored */
+ Trace((stderr, "inflate: stored block%s\n",
+ s->last ? " (last)" : ""));
+ DUMPBITS(3)
+ t = k & 7; /* go to byte boundary */
+ DUMPBITS(t)
+ s->mode = LENS; /* get length of stored block */
+ break;
+ case 1: /* fixed */
+ Trace((stderr, "inflate: fixed codes block%s\n",
+ s->last ? " (last)" : ""));
+ {
+ uInt bl, bd;
+ inflate_huft *tl, *td;
+
+ inflate_trees_fixed(&bl, &bd, &tl, &td);
+ s->sub.decode.codes = inflate_codes_new(bl, bd, tl, td, z);
+ if (s->sub.decode.codes == Z_NULL)
+ {
+ r = Z_MEM_ERROR;
+ LEAVE
+ }
+ s->sub.decode.tl = Z_NULL; /* don't try to free these */
+ s->sub.decode.td = Z_NULL;
+ }
+ DUMPBITS(3)
+ s->mode = CODES;
+ break;
+ case 2: /* dynamic */
+ Trace((stderr, "inflate: dynamic codes block%s\n",
+ s->last ? " (last)" : ""));
+ DUMPBITS(3)
+ s->mode = TABLE;
+ break;
+ case 3: /* illegal */
+ DUMPBITS(3)
+ s->mode = BADB;
+ z->msg = "invalid block type";
+ r = Z_DATA_ERROR;
+ LEAVE
}
break;
case LENS:
NEEDBITS(32)
if (((~b) >> 16) != (b & 0xffff))
{
- s->mode = BADB;
- z->msg = "invalid stored block lengths";
- r = Z_DATA_ERROR;
- LEAVE
+ s->mode = BADB;
+ z->msg = "invalid stored block lengths";
+ r = Z_DATA_ERROR;
+ LEAVE
}
s->sub.left = (uInt)b & 0xffff;
b = k = 0; /* dump bits */
break;
case STORED:
if (n == 0)
- LEAVE
+ LEAVE
NEEDOUT
t = s->sub.left;
if (t > n) t = n;
p += t; n -= t;
q += t; m -= t;
if ((s->sub.left -= t) != 0)
- break;
+ break;
Tracev((stderr, "inflate: stored end, %lu total out\n",
- z->total_out + (q >= s->read ? q - s->read :
- (s->end - s->read) + (q - s->window))));
+ z->total_out + (q >= s->read ? q - s->read :
+ (s->end - s->read) + (q - s->window))));
s->mode = s->last ? DRY : TYPE;
break;
case TABLE:
#ifndef PKZIP_BUG_WORKAROUND
if ((t & 0x1f) > 29 || ((t >> 5) & 0x1f) > 29)
{
- s->mode = BADB;
- z->msg = "too many length or distance symbols";
- r = Z_DATA_ERROR;
- LEAVE
+ s->mode = BADB;
+ z->msg = "too many length or distance symbols";
+ r = Z_DATA_ERROR;
+ LEAVE
}
#endif
t = 258 + (t & 0x1f) + ((t >> 5) & 0x1f);
if (t < 19)
- t = 19;
+ t = 19;
if ((s->sub.trees.blens = (uIntf*)ZALLOC(z, t, sizeof(uInt))) == Z_NULL)
{
- r = Z_MEM_ERROR;
- LEAVE
+ r = Z_MEM_ERROR;
+ LEAVE
}
s->sub.trees.nblens = t;
DUMPBITS(14)
case BTREE:
while (s->sub.trees.index < 4 + (s->sub.trees.table >> 10))
{
- NEEDBITS(3)
- s->sub.trees.blens[border[s->sub.trees.index++]] = (uInt)b & 7;
- DUMPBITS(3)
+ NEEDBITS(3)
+ s->sub.trees.blens[border[s->sub.trees.index++]] = (uInt)b & 7;
+ DUMPBITS(3)
}
while (s->sub.trees.index < 19)
- s->sub.trees.blens[border[s->sub.trees.index++]] = 0;
+ s->sub.trees.blens[border[s->sub.trees.index++]] = 0;
s->sub.trees.bb = 7;
t = inflate_trees_bits(s->sub.trees.blens, &s->sub.trees.bb,
- &s->sub.trees.tb, z);
+ &s->sub.trees.tb, z);
if (t != Z_OK)
{
- r = t;
- if (r == Z_DATA_ERROR)
- s->mode = BADB;
- LEAVE
+ r = t;
+ if (r == Z_DATA_ERROR)
+ s->mode = BADB;
+ LEAVE
}
s->sub.trees.index = 0;
Tracev((stderr, "inflate: bits tree ok\n"));
s->mode = DTREE;
case DTREE:
while (t = s->sub.trees.table,
- s->sub.trees.index < 258 + (t & 0x1f) + ((t >> 5) & 0x1f))
+ s->sub.trees.index < 258 + (t & 0x1f) + ((t >> 5) & 0x1f))
{
- inflate_huft *h;
- uInt i, j, c;
-
- t = s->sub.trees.bb;
- NEEDBITS(t)
- h = s->sub.trees.tb + ((uInt)b & inflate_mask[t]);
- t = h->word.what.Bits;
- c = h->more.Base;
- if (c < 16)
- {
- DUMPBITS(t)
- s->sub.trees.blens[s->sub.trees.index++] = c;
- }
- else /* c == 16..18 */
- {
- i = c == 18 ? 7 : c - 14;
- j = c == 18 ? 11 : 3;
- NEEDBITS(t + i)
- DUMPBITS(t)
- j += (uInt)b & inflate_mask[i];
- DUMPBITS(i)
- i = s->sub.trees.index;
- t = s->sub.trees.table;
- if (i + j > 258 + (t & 0x1f) + ((t >> 5) & 0x1f) ||
- (c == 16 && i < 1))
- {
- s->mode = BADB;
- z->msg = "invalid bit length repeat";
- r = Z_DATA_ERROR;
- LEAVE
- }
- c = c == 16 ? s->sub.trees.blens[i - 1] : 0;
- do {
- s->sub.trees.blens[i++] = c;
- } while (--j);
- s->sub.trees.index = i;
- }
+ inflate_huft *h;
+ uInt i, j, c;
+
+ t = s->sub.trees.bb;
+ NEEDBITS(t)
+ h = s->sub.trees.tb + ((uInt)b & inflate_mask[t]);
+ t = h->word.what.Bits;
+ c = h->more.Base;
+ if (c < 16)
+ {
+ DUMPBITS(t)
+ s->sub.trees.blens[s->sub.trees.index++] = c;
+ }
+ else /* c == 16..18 */
+ {
+ i = c == 18 ? 7 : c - 14;
+ j = c == 18 ? 11 : 3;
+ NEEDBITS(t + i)
+ DUMPBITS(t)
+ j += (uInt)b & inflate_mask[i];
+ DUMPBITS(i)
+ i = s->sub.trees.index;
+ t = s->sub.trees.table;
+ if (i + j > 258 + (t & 0x1f) + ((t >> 5) & 0x1f) ||
+ (c == 16 && i < 1))
+ {
+ s->mode = BADB;
+ z->msg = "invalid bit length repeat";
+ r = Z_DATA_ERROR;
+ LEAVE
+ }
+ c = c == 16 ? s->sub.trees.blens[i - 1] : 0;
+ do {
+ s->sub.trees.blens[i++] = c;
+ } while (--j);
+ s->sub.trees.index = i;
+ }
}
inflate_trees_free(s->sub.trees.tb, z);
s->sub.trees.tb = Z_NULL;
{
- uInt bl, bd;
- inflate_huft *tl, *td;
- inflate_codes_statef *c;
-
- bl = 9; /* must be <= 9 for lookahead assumptions */
- bd = 6; /* must be <= 9 for lookahead assumptions */
- t = s->sub.trees.table;
- t = inflate_trees_dynamic(257 + (t & 0x1f), 1 + ((t >> 5) & 0x1f),
- s->sub.trees.blens, &bl, &bd, &tl, &td, z);
- if (t != Z_OK)
- {
- if (t == (uInt)Z_DATA_ERROR)
- s->mode = BADB;
- r = t;
- LEAVE
- }
- Tracev((stderr, "inflate: trees ok\n"));
- if ((c = inflate_codes_new(bl, bd, tl, td, z)) == Z_NULL)
- {
- inflate_trees_free(td, z);
- inflate_trees_free(tl, z);
- r = Z_MEM_ERROR;
- LEAVE
- }
- ZFREE(z, s->sub.trees.blens, s->sub.trees.nblens * sizeof(uInt));
- s->sub.decode.codes = c;
- s->sub.decode.tl = tl;
- s->sub.decode.td = td;
+ uInt bl, bd;
+ inflate_huft *tl, *td;
+ inflate_codes_statef *c;
+
+ bl = 9; /* must be <= 9 for lookahead assumptions */
+ bd = 6; /* must be <= 9 for lookahead assumptions */
+ t = s->sub.trees.table;
+ t = inflate_trees_dynamic(257 + (t & 0x1f), 1 + ((t >> 5) & 0x1f),
+ s->sub.trees.blens, &bl, &bd, &tl, &td, z);
+ if (t != Z_OK)
+ {
+ if (t == (uInt)Z_DATA_ERROR)
+ s->mode = BADB;
+ r = t;
+ LEAVE
+ }
+ Tracev((stderr, "inflate: trees ok\n"));
+ if ((c = inflate_codes_new(bl, bd, tl, td, z)) == Z_NULL)
+ {
+ inflate_trees_free(td, z);
+ inflate_trees_free(tl, z);
+ r = Z_MEM_ERROR;
+ LEAVE
+ }
+ ZFREE(z, s->sub.trees.blens, s->sub.trees.nblens * sizeof(uInt));
+ s->sub.decode.codes = c;
+ s->sub.decode.tl = tl;
+ s->sub.decode.td = td;
}
s->mode = CODES;
case CODES:
UPDATE
if ((r = inflate_codes(s, z, r)) != Z_STREAM_END)
- return inflate_flush(s, z, r);
+ return inflate_flush(s, z, r);
r = Z_OK;
inflate_codes_free(s->sub.decode.codes, z);
inflate_trees_free(s->sub.decode.td, z);
inflate_trees_free(s->sub.decode.tl, z);
LOAD
Tracev((stderr, "inflate: codes end, %lu total out\n",
- z->total_out + (q >= s->read ? q - s->read :
- (s->end - s->read) + (q - s->window))));
+ z->total_out + (q >= s->read ? q - s->read :
+ (s->end - s->read) + (q - s->window))));
if (!s->last)
{
- s->mode = TYPE;
- break;
+ s->mode = TYPE;
+ break;
}
if (k > 7) /* return unused byte, if any */
{
- Assert(k < 16, "inflate_codes grabbed too many bytes")
- k -= 8;
- n++;
- p--; /* can always return one */
+ Assert(k < 16, "inflate_codes grabbed too many bytes")
+ k -= 8;
+ n++;
+ p--; /* can always return one */
}
s->mode = DRY;
case DRY:
FLUSH
if (s->read != s->write)
- LEAVE
+ LEAVE
s->mode = DONEB;
case DONEB:
r = Z_STREAM_END;
/* Tables for deflate from PKZIP's appnote.txt. */
local uInt cplens[] = { /* Copy lengths for literal codes 257..285 */
- 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
- 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
- /* actually lengths - 2; also see note #13 above about 258 */
+ 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
+ 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
+ /* actually lengths - 2; also see note #13 above about 258 */
local uInt cplext[] = { /* Extra bits for literal codes 257..285 */
- 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2,
- 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 192, 192}; /* 192==invalid */
+ 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2,
+ 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 192, 192}; /* 192==invalid */
local uInt cpdist[] = { /* Copy offsets for distance codes 0..29 */
- 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
- 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
- 8193, 12289, 16385, 24577};
+ 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
+ 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
+ 8193, 12289, 16385, 24577};
local uInt cpdext[] = { /* Extra bits for distance codes */
- 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6,
- 7, 7, 8, 8, 9, 9, 10, 10, 11, 11,
- 12, 12, 13, 13};
+ 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6,
+ 7, 7, 8, 8, 9, 9, 10, 10, 11, 11,
+ 12, 12, 13, 13};
/*
Huffman code decoding is performed using a multi-level table lookup.
/* make tables up to required level */
while (k > w + l)
{
- h++;
- w += l; /* previous table always l bits */
-
- /* compute minimum size table less than or equal to l bits */
- z = (z = g - w) > (uInt)l ? l : z; /* table size upper limit */
- if ((f = 1 << (j = k - w)) > a + 1) /* try a k-w bit table */
- { /* too few codes for k-w bit table */
- f -= a + 1; /* deduct codes from patterns left */
- xp = c + k;
- if (j < z)
- while (++j < z) /* try smaller tables up to z bits */
- {
- if ((f <<= 1) <= *++xp)
- break; /* enough codes to use up j bits */
- f -= *xp; /* else deduct codes from patterns */
- }
- }
- z = 1 << j; /* table entries for j-bit table */
-
- /* allocate and link in new table */
- if ((q = (inflate_huft *)ZALLOC
- (zs,z + 1,sizeof(inflate_huft))) == Z_NULL)
- {
- if (h)
- inflate_trees_free(u[0], zs);
- return Z_MEM_ERROR; /* not enough memory */
- }
+ h++;
+ w += l; /* previous table always l bits */
+
+ /* compute minimum size table less than or equal to l bits */
+ z = (z = g - w) > (uInt)l ? l : z; /* table size upper limit */
+ if ((f = 1 << (j = k - w)) > a + 1) /* try a k-w bit table */
+ { /* too few codes for k-w bit table */
+ f -= a + 1; /* deduct codes from patterns left */
+ xp = c + k;
+ if (j < z)
+ while (++j < z) /* try smaller tables up to z bits */
+ {
+ if ((f <<= 1) <= *++xp)
+ break; /* enough codes to use up j bits */
+ f -= *xp; /* else deduct codes from patterns */
+ }
+ }
+ z = 1 << j; /* table entries for j-bit table */
+
+ /* allocate and link in new table */
+ if ((q = (inflate_huft *)ZALLOC
+ (zs,z + 1,sizeof(inflate_huft))) == Z_NULL)
+ {
+ if (h)
+ inflate_trees_free(u[0], zs);
+ return Z_MEM_ERROR; /* not enough memory */
+ }
q->word.Nalloc = z + 1;
#ifdef DEBUG_ZLIB
- inflate_hufts += z + 1;
+ inflate_hufts += z + 1;
#endif
- *t = q + 1; /* link to list for huft_free() */
- *(t = &(q->next)) = Z_NULL;
- u[h] = ++q; /* table starts after link */
-
- /* connect to last table, if there is one */
- if (h)
- {
- x[h] = i; /* save pattern for backing up */
- r.bits = (Byte)l; /* bits to dump before this table */
- r.exop = (Byte)j; /* bits in this table */
- r.next = q; /* pointer to this table */
- j = i >> (w - l); /* (get around Turbo C bug) */
- u[h-1][j] = r; /* connect to last table */
- }
+ *t = q + 1; /* link to list for huft_free() */
+ *(t = &(q->next)) = Z_NULL;
+ u[h] = ++q; /* table starts after link */
+
+ /* connect to last table, if there is one */
+ if (h)
+ {
+ x[h] = i; /* save pattern for backing up */
+ r.bits = (Byte)l; /* bits to dump before this table */
+ r.exop = (Byte)j; /* bits in this table */
+ r.next = q; /* pointer to this table */
+ j = i >> (w - l); /* (get around Turbo C bug) */
+ u[h-1][j] = r; /* connect to last table */
+ }
}
/* set up table entry in r */
r.bits = (Byte)(k - w);
if (p >= v + n)
- r.exop = 128 + 64; /* out of values--invalid code */
+ r.exop = 128 + 64; /* out of values--invalid code */
else if (*p < s)
{
- r.exop = (Byte)(*p < 256 ? 0 : 32 + 64); /* 256 is end-of-block */
- r.base = *p++; /* simple code is just the value */
+ r.exop = (Byte)(*p < 256 ? 0 : 32 + 64); /* 256 is end-of-block */
+ r.base = *p++; /* simple code is just the value */
}
else
{
- r.exop = (Byte)e[*p - s] + 16 + 64; /* non-simple--look up in lists */
- r.base = d[*p++ - s];
+ r.exop = (Byte)e[*p - s] + 16 + 64; /* non-simple--look up in lists */
+ r.base = d[*p++ - s];
}
/* fill code-like entries with r */
f = 1 << (k - w);
for (j = i >> w; j < z; j += f)
- q[j] = r;
+ q[j] = r;
/* backwards increment the k-bit code i */
for (j = 1 << (k - 1); i & j; j >>= 1)
- i ^= j;
+ i ^= j;
i ^= j;
/* backup over finished tables */
while ((i & ((1 << w) - 1)) != x[h])
{
- h--; /* don't need to update q */
- w -= l;
+ h--; /* don't need to update q */
+ w -= l;
}
}
}
uInt s; /* size of item */
{
Assert(s == sizeof(inflate_huft) && n <= fixed_left,
- "inflate_trees falloc overflow");
+ "inflate_trees falloc overflow");
if (q) s++; /* to make some compilers happy */
fixed_left -= n;
return (voidpf)(fixed_mem + fixed_left);
#ifndef SLOW
if (m >= 258 && n >= 10)
{
- UPDATE
- r = inflate_fast(c->lbits, c->dbits, c->ltree, c->dtree, s, z);
- LOAD
- if (r != Z_OK)
- {
- c->mode = r == Z_STREAM_END ? WASH : BADCODE;
- break;
- }
+ UPDATE
+ r = inflate_fast(c->lbits, c->dbits, c->ltree, c->dtree, s, z);
+ LOAD
+ if (r != Z_OK)
+ {
+ c->mode = r == Z_STREAM_END ? WASH : BADCODE;
+ break;
+ }
}
#endif /* !SLOW */
c->sub.code.need = c->lbits;
e = (uInt)(t->exop);
if (e == 0) /* literal */
{
- c->sub.lit = t->base;
- Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ?
- "inflate: literal '%c'\n" :
- "inflate: literal 0x%02x\n", t->base));
- c->mode = LIT;
- break;
+ c->sub.lit = t->base;
+ Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ?
+ "inflate: literal '%c'\n" :
+ "inflate: literal 0x%02x\n", t->base));
+ c->mode = LIT;
+ break;
}
if (e & 16) /* length */
{
- c->sub.copy.get = e & 15;
- c->len = t->base;
- c->mode = LENEXT;
- break;
+ c->sub.copy.get = e & 15;
+ c->len = t->base;
+ c->mode = LENEXT;
+ break;
}
if ((e & 64) == 0) /* next table */
{
- c->sub.code.need = e;
- c->sub.code.tree = t->next;
- break;
+ c->sub.code.need = e;
+ c->sub.code.tree = t->next;
+ break;
}
if (e & 32) /* end of block */
{
- Tracevv((stderr, "inflate: end of block\n"));
- c->mode = WASH;
- break;
+ Tracevv((stderr, "inflate: end of block\n"));
+ c->mode = WASH;
+ break;
}
c->mode = BADCODE; /* invalid code */
z->msg = "invalid literal/length code";
e = (uInt)(t->exop);
if (e & 16) /* distance */
{
- c->sub.copy.get = e & 15;
- c->sub.copy.dist = t->base;
- c->mode = DISTEXT;
- break;
+ c->sub.copy.get = e & 15;
+ c->sub.copy.dist = t->base;
+ c->mode = DISTEXT;
+ break;
}
if ((e & 64) == 0) /* next table */
{
- c->sub.code.need = e;
- c->sub.code.tree = t->next;
- break;
+ c->sub.code.need = e;
+ c->sub.code.tree = t->next;
+ break;
}
c->mode = BADCODE; /* invalid code */
z->msg = "invalid distance code";
case COPY: /* o: copying bytes in window, waiting for space */
#ifndef __TURBOC__ /* Turbo C bug for following expression */
f = (uInt)(q - s->window) < c->sub.copy.dist ?
- s->end - (c->sub.copy.dist - (q - s->window)) :
- q - c->sub.copy.dist;
+ s->end - (c->sub.copy.dist - (q - s->window)) :
+ q - c->sub.copy.dist;
#else
f = q - c->sub.copy.dist;
if ((uInt)(q - s->window) < c->sub.copy.dist)
- f = s->end - (c->sub.copy.dist - (q - s->window));
+ f = s->end - (c->sub.copy.dist - (q - s->window));
#endif
while (c->len)
{
- NEEDOUT
- OUTBYTE(*f++)
- if (f == s->end)
- f = s->window;
- c->len--;
+ NEEDOUT
+ OUTBYTE(*f++)
+ if (f == s->end)
+ f = s->window;
+ c->len--;
}
c->mode = START;
break;
case WASH: /* o: got eob, possibly more output */
FLUSH
if (s->read != s->write)
- LEAVE
+ LEAVE
c->mode = END;
case END:
r = Z_STREAM_END;
{
DUMPBITS(t->bits)
Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ?
- "inflate: * literal '%c'\n" :
- "inflate: * literal 0x%02x\n", t->base));
+ "inflate: * literal '%c'\n" :
+ "inflate: * literal 0x%02x\n", t->base));
*q++ = (Byte)t->base;
m--;
continue;
DUMPBITS(t->bits)
if (e & 16)
{
- /* get extra bits for length */
- e &= 15;
- c = t->base + ((uInt)b & inflate_mask[e]);
- DUMPBITS(e)
- Tracevv((stderr, "inflate: * length %u\n", c));
-
- /* decode distance base of block to copy */
- GRABBITS(15); /* max bits for distance code */
- e = (t = td + ((uInt)b & md))->exop;
- do {
- DUMPBITS(t->bits)
- if (e & 16)
- {
- /* get extra bits to add to distance base */
- e &= 15;
- GRABBITS(e) /* get extra bits (up to 13) */
- d = t->base + ((uInt)b & inflate_mask[e]);
- DUMPBITS(e)
- Tracevv((stderr, "inflate: * distance %u\n", d));
-
- /* do the copy */
- m -= c;
- if ((uInt)(q - s->window) >= d) /* offset before dest */
- { /* just copy */
- r = q - d;
- *q++ = *r++; c--; /* minimum count is three, */
- *q++ = *r++; c--; /* so unroll loop a little */
- }
- else /* else offset after destination */
- {
- e = d - (q - s->window); /* bytes from offset to end */
- r = s->end - e; /* pointer to offset */
- if (c > e) /* if source crosses, */
- {
- c -= e; /* copy to end of window */
- do {
- *q++ = *r++;
- } while (--e);
- r = s->window; /* copy rest from start of window */
- }
- }
- do { /* copy all or what's left */
- *q++ = *r++;
- } while (--c);
- break;
- }
- else if ((e & 64) == 0)
- e = (t = t->next + ((uInt)b & inflate_mask[e]))->exop;
- else
- {
- z->msg = "invalid distance code";
- UNGRAB
- UPDATE
- return Z_DATA_ERROR;
- }
- } while (1);
- break;
+ /* get extra bits for length */
+ e &= 15;
+ c = t->base + ((uInt)b & inflate_mask[e]);
+ DUMPBITS(e)
+ Tracevv((stderr, "inflate: * length %u\n", c));
+
+ /* decode distance base of block to copy */
+ GRABBITS(15); /* max bits for distance code */
+ e = (t = td + ((uInt)b & md))->exop;
+ do {
+ DUMPBITS(t->bits)
+ if (e & 16)
+ {
+ /* get extra bits to add to distance base */
+ e &= 15;
+ GRABBITS(e) /* get extra bits (up to 13) */
+ d = t->base + ((uInt)b & inflate_mask[e]);
+ DUMPBITS(e)
+ Tracevv((stderr, "inflate: * distance %u\n", d));
+
+ /* do the copy */
+ m -= c;
+ if ((uInt)(q - s->window) >= d) /* offset before dest */
+ { /* just copy */
+ r = q - d;
+ *q++ = *r++; c--; /* minimum count is three, */
+ *q++ = *r++; c--; /* so unroll loop a little */
+ }
+ else /* else offset after destination */
+ {
+ e = d - (q - s->window); /* bytes from offset to end */
+ r = s->end - e; /* pointer to offset */
+ if (c > e) /* if source crosses, */
+ {
+ c -= e; /* copy to end of window */
+ do {
+ *q++ = *r++;
+ } while (--e);
+ r = s->window; /* copy rest from start of window */
+ }
+ }
+ do { /* copy all or what's left */
+ *q++ = *r++;
+ } while (--c);
+ break;
+ }
+ else if ((e & 64) == 0)
+ e = (t = t->next + ((uInt)b & inflate_mask[e]))->exop;
+ else
+ {
+ z->msg = "invalid distance code";
+ UNGRAB
+ UPDATE
+ return Z_DATA_ERROR;
+ }
+ } while (1);
+ break;
}
if ((e & 64) == 0)
{
- if ((e = (t = t->next + ((uInt)b & inflate_mask[e]))->exop) == 0)
- {
- DUMPBITS(t->bits)
- Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ?
- "inflate: * literal '%c'\n" :
- "inflate: * literal 0x%02x\n", t->base));
- *q++ = (Byte)t->base;
- m--;
- break;
- }
+ if ((e = (t = t->next + ((uInt)b & inflate_mask[e]))->exop) == 0)
+ {
+ DUMPBITS(t->bits)
+ Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ?
+ "inflate: * literal '%c'\n" :
+ "inflate: * literal 0x%02x\n", t->base));
+ *q++ = (Byte)t->base;
+ m--;
+ break;
+ }
}
else if (e & 32)
{
- Tracevv((stderr, "inflate: * end of block\n"));
- UNGRAB
- UPDATE
- return Z_STREAM_END;
+ Tracevv((stderr, "inflate: * end of block\n"));
+ UNGRAB
+ UPDATE
+ return Z_STREAM_END;
}
else
{
- z->msg = "invalid literal/length code";
- UNGRAB
- UPDATE
- return Z_DATA_ERROR;
+ z->msg = "invalid literal/length code";
+ UNGRAB
+ UPDATE
+ return Z_DATA_ERROR;
}
} while (1);
} while (m >= 258 && n >= 10);
if (buf == Z_NULL) return 1L;
while (len > 0) {
- k = len < NMAX ? len : NMAX;
- len -= k;
- while (k >= 16) {
- DO16(buf);
- k -= 16;
- }
- if (k != 0) do {
- DO1(buf);
- } while (--k);
- s1 %= BASE;
- s2 %= BASE;
+ k = len < NMAX ? len : NMAX;
+ len -= k;
+ while (k >= 16) {
+ DO16(buf);
+ k -= 16;
+ }
+ if (k != 0) do {
+ DO1(buf);
+ } while (--k);
+ s1 %= BASE;
+ s2 %= BASE;
}
return (s2 << 16) | s1;
}
projects / karo-tx-uboot.git / blobdiff