Move bunzip2 idecompression code to libunarchive

1 files changed, 22 insertions, 1787 deletions

diff --git a/archival/bunzip2.c b/archival/bunzip2.c
index 356895b32..9f346f266 100644
--- a/archival/bunzip2.c
+++ b/archival/bunzip2.c
@@ -1,1794 +1,29 @@
-/* Modified for busybox by Glenn McGrath <bug1@optushome.com.au> */
-/* Added support output to stdout by Thomas Lundquist <thomasez@zelow.no> */ 
-/*--
-  This file is a part of bzip2 and/or libbzip2, a program and
-  library for lossless, block-sorting data compression.
+/*
+ *  Modified for busybox by Glenn McGrath <bug1@optushome.com.au>
+ *  Added support output to stdout by Thomas Lundquist <thomasez@zelow.no>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
 
-  Copyright (C) 1996-2000 Julian R Seward.  All rights reserved.
-
-  Redistribution and use in source and binary forms, with or without
-  modification, are permitted provided that the following conditions
-  are met:
-
-  1. Redistributions of source code must retain the above copyright
-     notice, this list of conditions and the following disclaimer.
-
-  2. The origin of this software must not be misrepresented; you must 
-     not claim that you wrote the original software.  If you use this 
-     software in a product, an acknowledgment in the product 
-     documentation would be appreciated but is not required.
-
-  3. Altered source versions must be plainly marked as such, and must
-     not be misrepresented as being the original software.
-
-  4. The name of the author may not be used to endorse or promote 
-     products derived from this software without specific prior written 
-     permission.
-
-  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
-  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-  ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
-  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
-  GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-  Julian Seward, Cambridge, UK.
-  jseward@acm.org
-  bzip2/libbzip2 version 1.0 of 21 March 2000
-
-  This program is based on (at least) the work of:
-     Mike Burrows
-     David Wheeler
-     Peter Fenwick
-     Alistair Moffat
-     Radford Neal
-     Ian H. Witten
-     Robert Sedgewick
-     Jon L. Bentley
-
-  For more information on these sources, see the manual.
---*/
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
 #include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
 #include <unistd.h>
-#include <busybox.h>
-
-//#define TRUE 1
-//#define FALSE 0
-
-#define MTFA_SIZE 4096
-#define MTFL_SIZE 16
-#define BZ_N_GROUPS 6
-#define BZ_G_SIZE   50
-#define BZ_MAX_ALPHA_SIZE 258
-
-#define BZ_OK                0
-#define BZ_STREAM_END        4
-#define BZ_SEQUENCE_ERROR    (-1)
-#define BZ_DATA_ERROR        (-4)
-#define BZ_DATA_ERROR_MAGIC  (-5)
-#define BZ_IO_ERROR          (-6)
-#define BZ_UNEXPECTED_EOF    (-7)
-
-#define BZ_RUNA 0
-#define BZ_RUNB 1
-
-#define BZ_MAX_UNUSED 5000
-#define FILE_NAME_LEN 1034
-/*-- states for decompression. --*/
-
-#define BZ_X_IDLE        1
-#define BZ_X_OUTPUT      2
-
-#define BZ_X_MAGIC_1     10
-#define BZ_X_MAGIC_2     11
-#define BZ_X_MAGIC_3     12
-#define BZ_X_MAGIC_4     13
-#define BZ_X_BLKHDR_1    14
-#define BZ_X_BLKHDR_2    15
-#define BZ_X_BLKHDR_3    16
-#define BZ_X_BLKHDR_4    17
-#define BZ_X_BLKHDR_5    18
-#define BZ_X_BLKHDR_6    19
-#define BZ_X_BCRC_1      20
-#define BZ_X_BCRC_2      21
-#define BZ_X_BCRC_3      22
-#define BZ_X_BCRC_4      23
-#define BZ_X_RANDBIT     24
-#define BZ_X_ORIGPTR_1   25
-#define BZ_X_ORIGPTR_2   26
-#define BZ_X_ORIGPTR_3   27
-#define BZ_X_MAPPING_1   28
-#define BZ_X_MAPPING_2   29
-#define BZ_X_SELECTOR_1  30
-#define BZ_X_SELECTOR_2  31
-#define BZ_X_SELECTOR_3  32
-#define BZ_X_CODING_1    33
-#define BZ_X_CODING_2    34
-#define BZ_X_CODING_3    35
-#define BZ_X_MTF_1       36
-#define BZ_X_MTF_2       37
-#define BZ_X_MTF_3       38
-#define BZ_X_MTF_4       39
-#define BZ_X_MTF_5       40
-#define BZ_X_MTF_6       41
-#define BZ_X_ENDHDR_2    42
-#define BZ_X_ENDHDR_3    43
-#define BZ_X_ENDHDR_4    44
-#define BZ_X_ENDHDR_5    45
-#define BZ_X_ENDHDR_6    46
-#define BZ_X_CCRC_1      47
-#define BZ_X_CCRC_2      48
-#define BZ_X_CCRC_3      49
-#define BZ_X_CCRC_4      50
-
-#define BZ_MAX_CODE_LEN    23
-#define OM_TEST          3
-
-typedef struct {
-	char *next_in;
-	unsigned int avail_in;
-
-	char *next_out;
-	unsigned int avail_out;
-
-	void *state;
-
-} bz_stream;
-
-typedef struct {
-	bz_stream	strm;
-	FILE	*handle;
-    unsigned char	initialisedOk;
-	char	buf[BZ_MAX_UNUSED];
-	int		lastErr;
-	int		bufN;
-} bzFile;
-
-/*-- Structure holding all the decompression-side stuff. --*/
-typedef struct {
-	/* pointer back to the struct bz_stream */
-	bz_stream* strm;
-
-	/* state indicator for this stream */
-	int	state;
-
-	/* for doing the final run-length decoding */
-	unsigned char    state_out_ch;
-	int    state_out_len;
-	unsigned char     blockRandomised;
-	int rNToGo;
-	int rTPos;
-
-	/* the buffer for bit stream reading */
-	unsigned int   bsBuff;
-	int    bsLive;
-
-	/* misc administratium */
-	int    blockSize100k;
-	int    currBlockNo;
-
-	/* for undoing the Burrows-Wheeler transform */
-	int    origPtr;
-	unsigned int   tPos;
-	int    k0;
-	int    unzftab[256];
-	int    nblock_used;
-	int    cftab[257];
-	int    cftabCopy[257];
-
-	/* for undoing the Burrows-Wheeler transform (FAST) */
-	unsigned int *tt;
-
-	/* stored and calculated CRCs */
-	unsigned int   storedBlockCRC;
-	unsigned int   storedCombinedCRC;
-	unsigned int   calculatedBlockCRC;
-	unsigned int   calculatedCombinedCRC;
-
-	/* map of bytes used in block */
-	int    nInUse;
-	unsigned char     inUse[256];
-	unsigned char     inUse16[16];
-	unsigned char    seqToUnseq[256];
-
-	/* for decoding the MTF values */
-	unsigned char    mtfa   [MTFA_SIZE];
-	unsigned char    selector   [2 + (900000 / BZ_G_SIZE)];
-	unsigned char    selectorMtf[2 + (900000 / BZ_G_SIZE)];
-	unsigned char    len  [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
-	int    mtfbase[256 / MTFL_SIZE];
-
-	int    limit  [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
-	int    base   [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
-	int    perm   [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
-	int    minLens[BZ_N_GROUPS];
-
-	/* save area for scalars in the main decompress code */
-	int    save_i;
-	int    save_j;
-	int    save_t;
-	int    save_alphaSize;
-	int    save_nGroups;
-	int    save_nSelectors;
-	int    save_EOB;
-	int    save_groupNo;
-	int    save_groupPos;
-	int    save_nextSym;
-	int    save_nblockMAX;
-	int    save_nblock;
-	int    save_es;
-	int    save_N;
-	int    save_curr;
-	int    save_zt;
-	int    save_zn; 
-	int    save_zvec;
-	int    save_zj;
-	int    save_gSel;
-	int    save_gMinlen;
-	int	*save_gLimit;
-	int	*save_gBase;
-	int	*save_gPerm;
-} DState;
-
-int BZ2_rNums[512];
-char inName[FILE_NAME_LEN];
-char outName[FILE_NAME_LEN];
-int srcMode;
-int opMode;
-unsigned char deleteOutputOnInterrupt;
-FILE *outputHandleJustInCase;
-int numFileNames;
-int numFilesProcessed;
-int exitValue;
-
-const unsigned int BZ2_crc32Table[256] = {
-
-   /*-- Ugly, innit? --*/
-
-   0x00000000L, 0x04c11db7L, 0x09823b6eL, 0x0d4326d9L,
-   0x130476dcL, 0x17c56b6bL, 0x1a864db2L, 0x1e475005L,
-   0x2608edb8L, 0x22c9f00fL, 0x2f8ad6d6L, 0x2b4bcb61L,
-   0x350c9b64L, 0x31cd86d3L, 0x3c8ea00aL, 0x384fbdbdL,
-   0x4c11db70L, 0x48d0c6c7L, 0x4593e01eL, 0x4152fda9L,
-   0x5f15adacL, 0x5bd4b01bL, 0x569796c2L, 0x52568b75L,
-   0x6a1936c8L, 0x6ed82b7fL, 0x639b0da6L, 0x675a1011L,
-   0x791d4014L, 0x7ddc5da3L, 0x709f7b7aL, 0x745e66cdL,
-   0x9823b6e0L, 0x9ce2ab57L, 0x91a18d8eL, 0x95609039L,
-   0x8b27c03cL, 0x8fe6dd8bL, 0x82a5fb52L, 0x8664e6e5L,
-   0xbe2b5b58L, 0xbaea46efL, 0xb7a96036L, 0xb3687d81L,
-   0xad2f2d84L, 0xa9ee3033L, 0xa4ad16eaL, 0xa06c0b5dL,
-   0xd4326d90L, 0xd0f37027L, 0xddb056feL, 0xd9714b49L,
-   0xc7361b4cL, 0xc3f706fbL, 0xceb42022L, 0xca753d95L,
-   0xf23a8028L, 0xf6fb9d9fL, 0xfbb8bb46L, 0xff79a6f1L,
-   0xe13ef6f4L, 0xe5ffeb43L, 0xe8bccd9aL, 0xec7dd02dL,
-   0x34867077L, 0x30476dc0L, 0x3d044b19L, 0x39c556aeL,
-   0x278206abL, 0x23431b1cL, 0x2e003dc5L, 0x2ac12072L,
-   0x128e9dcfL, 0x164f8078L, 0x1b0ca6a1L, 0x1fcdbb16L,
-   0x018aeb13L, 0x054bf6a4L, 0x0808d07dL, 0x0cc9cdcaL,
-   0x7897ab07L, 0x7c56b6b0L, 0x71159069L, 0x75d48ddeL,
-   0x6b93dddbL, 0x6f52c06cL, 0x6211e6b5L, 0x66d0fb02L,
-   0x5e9f46bfL, 0x5a5e5b08L, 0x571d7dd1L, 0x53dc6066L,
-   0x4d9b3063L, 0x495a2dd4L, 0x44190b0dL, 0x40d816baL,
-   0xaca5c697L, 0xa864db20L, 0xa527fdf9L, 0xa1e6e04eL,
-   0xbfa1b04bL, 0xbb60adfcL, 0xb6238b25L, 0xb2e29692L,
-   0x8aad2b2fL, 0x8e6c3698L, 0x832f1041L, 0x87ee0df6L,
-   0x99a95df3L, 0x9d684044L, 0x902b669dL, 0x94ea7b2aL,
-   0xe0b41de7L, 0xe4750050L, 0xe9362689L, 0xedf73b3eL,
-   0xf3b06b3bL, 0xf771768cL, 0xfa325055L, 0xfef34de2L,
-   0xc6bcf05fL, 0xc27dede8L, 0xcf3ecb31L, 0xcbffd686L,
-   0xd5b88683L, 0xd1799b34L, 0xdc3abdedL, 0xd8fba05aL,
-   0x690ce0eeL, 0x6dcdfd59L, 0x608edb80L, 0x644fc637L,
-   0x7a089632L, 0x7ec98b85L, 0x738aad5cL, 0x774bb0ebL,
-   0x4f040d56L, 0x4bc510e1L, 0x46863638L, 0x42472b8fL,
-   0x5c007b8aL, 0x58c1663dL, 0x558240e4L, 0x51435d53L,
-   0x251d3b9eL, 0x21dc2629L, 0x2c9f00f0L, 0x285e1d47L,
-   0x36194d42L, 0x32d850f5L, 0x3f9b762cL, 0x3b5a6b9bL,
-   0x0315d626L, 0x07d4cb91L, 0x0a97ed48L, 0x0e56f0ffL,
-   0x1011a0faL, 0x14d0bd4dL, 0x19939b94L, 0x1d528623L,
-   0xf12f560eL, 0xf5ee4bb9L, 0xf8ad6d60L, 0xfc6c70d7L,
-   0xe22b20d2L, 0xe6ea3d65L, 0xeba91bbcL, 0xef68060bL,
-   0xd727bbb6L, 0xd3e6a601L, 0xdea580d8L, 0xda649d6fL,
-   0xc423cd6aL, 0xc0e2d0ddL, 0xcda1f604L, 0xc960ebb3L,
-   0xbd3e8d7eL, 0xb9ff90c9L, 0xb4bcb610L, 0xb07daba7L,
-   0xae3afba2L, 0xaafbe615L, 0xa7b8c0ccL, 0xa379dd7bL,
-   0x9b3660c6L, 0x9ff77d71L, 0x92b45ba8L, 0x9675461fL,
-   0x8832161aL, 0x8cf30badL, 0x81b02d74L, 0x857130c3L,
-   0x5d8a9099L, 0x594b8d2eL, 0x5408abf7L, 0x50c9b640L,
-   0x4e8ee645L, 0x4a4ffbf2L, 0x470cdd2bL, 0x43cdc09cL,
-   0x7b827d21L, 0x7f436096L, 0x7200464fL, 0x76c15bf8L,
-   0x68860bfdL, 0x6c47164aL, 0x61043093L, 0x65c52d24L,
-   0x119b4be9L, 0x155a565eL, 0x18197087L, 0x1cd86d30L,
-   0x029f3d35L, 0x065e2082L, 0x0b1d065bL, 0x0fdc1becL,
-   0x3793a651L, 0x3352bbe6L, 0x3e119d3fL, 0x3ad08088L,
-   0x2497d08dL, 0x2056cd3aL, 0x2d15ebe3L, 0x29d4f654L,
-   0xc5a92679L, 0xc1683bceL, 0xcc2b1d17L, 0xc8ea00a0L,
-   0xd6ad50a5L, 0xd26c4d12L, 0xdf2f6bcbL, 0xdbee767cL,
-   0xe3a1cbc1L, 0xe760d676L, 0xea23f0afL, 0xeee2ed18L,
-   0xf0a5bd1dL, 0xf464a0aaL, 0xf9278673L, 0xfde69bc4L,
-   0x89b8fd09L, 0x8d79e0beL, 0x803ac667L, 0x84fbdbd0L,
-   0x9abc8bd5L, 0x9e7d9662L, 0x933eb0bbL, 0x97ffad0cL,
-   0xafb010b1L, 0xab710d06L, 0xa6322bdfL, 0xa2f33668L,
-   0xbcb4666dL, 0xb8757bdaL, 0xb5365d03L, 0xb1f740b4L
-};
-
-static void bz_rand_udp_mask(DState *s)
-{
-	if (s->rNToGo == 0) {
-		s->rNToGo = BZ2_rNums[s->rTPos];
-		s->rTPos++;
-		if (s->rTPos == 512) {
-			s->rTPos = 0;
-		}
-	}
-	s->rNToGo--;
-}
-
-static unsigned char myfeof(FILE *f)
-{
-	int c = fgetc(f);
-	if (c == EOF) {
-		return(TRUE);
-	}
-	ungetc(c, f);
-	return(FALSE);
-}
-
-static void BZ2_hbCreateDecodeTables(int *limit, int *base, int *perm, unsigned char *length, int minLen, int maxLen, int alphaSize )
-{
-	int pp, i, j, vec;
-
-	pp = 0;
-	for (i = minLen; i <= maxLen; i++) {
-		for (j = 0; j < alphaSize; j++) {
-			if (length[j] == i) {
-				perm[pp] = j;
-				pp++;
-			}
-		}
-	}
-
-	for (i = 0; i < BZ_MAX_CODE_LEN; i++) {
-		base[i] = 0;
-	}
-
-	for (i = 0; i < alphaSize; i++) {
-		base[length[i]+1]++;
-	}
-
-	for (i = 1; i < BZ_MAX_CODE_LEN; i++) {
-		base[i] += base[i-1];
-	}
-
-	for (i = 0; i < BZ_MAX_CODE_LEN; i++) {
-		limit[i] = 0;
-	}
-	vec = 0;
-
-	for (i = minLen; i <= maxLen; i++) {
-		vec += (base[i+1] - base[i]);
-		limit[i] = vec-1;
-		vec <<= 1;
-	}
-	for (i = minLen + 1; i <= maxLen; i++) {
-		base[i] = ((limit[i-1] + 1) << 1) - base[i];
-	}
-}
-
-
-static int get_bits(DState *s, int *vvv, char nnn)
-{
-	while (1) {
-		if (s->bsLive >= nnn) {
-			*vvv = (s->bsBuff >> (s->bsLive-nnn)) & ((1 << nnn)-1);
-			s->bsLive -= nnn;
-			break;
-		}
-		if (s->strm->avail_in == 0) {
-			return(FALSE);
-		}
-		s->bsBuff = (s->bsBuff << 8) | ((unsigned int) (*((unsigned char*)(s->strm->next_in))));
-		s->bsLive += 8;
-		s->strm->next_in++;
-		s->strm->avail_in--;
-	}
-	return(TRUE);
-}
-
-static int bz_get_fast(DState *s)
-{
-	int cccc;
-	s->tPos = s->tt[s->tPos];
-	cccc = (unsigned char)(s->tPos & 0xff);
-	s->tPos >>= 8;
-	return(cccc);
-}
-
-/*---------------------------------------------------*/
-static inline int BZ2_decompress(DState *s)
-{
-	int uc = 0;
-	int	retVal;
-	int	minLen,	maxLen;
-
-	/* stuff that needs to be saved/restored */
-	int  i;
-	int  j;
-	int  t;
-	int  alphaSize;
-	int  nGroups;
-	int  nSelectors;
-	int  EOB;
-	int  groupNo;
-	int  groupPos;
-	int  nextSym;
-	int  nblockMAX;
-	int  nblock;
-	int  es;
-	int  N;
-	int  curr;
-	int  zt;
-	int  zn; 
-	int  zvec;
-	int  zj;
-	int  gSel;
-	int  gMinlen;
-	int *gLimit;
-	int *gBase;
-	int *gPerm;
-	int switch_val;
-
-	int get_mtf_val_init(void)
-	{
-		if (groupPos == 0) {
-			groupNo++;
-			if (groupNo >= nSelectors) {
-				retVal = BZ_DATA_ERROR;
-				return(FALSE);
-			}
-			groupPos = BZ_G_SIZE;
-			gSel = s->selector[groupNo];
-			gMinlen = s->minLens[gSel];
-			gLimit = &(s->limit[gSel][0]);
-			gPerm = &(s->perm[gSel][0]);
-			gBase = &(s->base[gSel][0]);
-		}
-		groupPos--;
-		zn = gMinlen;
-		return(TRUE);
-	}
-
-	if (s->state == BZ_X_MAGIC_1) {
-		/*initialise the save area*/
-		s->save_i           = 0;
-		s->save_j           = 0;
-		s->save_t           = 0;
-		s->save_alphaSize   = 0;
-		s->save_nGroups     = 0;
-		s->save_nSelectors  = 0;
-		s->save_EOB         = 0;
-		s->save_groupNo     = 0;
-		s->save_groupPos    = 0;
-		s->save_nextSym     = 0;
-		s->save_nblockMAX   = 0;
-		s->save_nblock      = 0;
-		s->save_es          = 0;
-		s->save_N           = 0;
-		s->save_curr        = 0;
-		s->save_zt          = 0;
-		s->save_zn          = 0;
-		s->save_zvec        = 0;
-		s->save_zj          = 0;
-		s->save_gSel        = 0;
-		s->save_gMinlen     = 0;
-		s->save_gLimit      = NULL;
-		s->save_gBase       = NULL;
-		s->save_gPerm       = NULL;
-	}
-
-	/*restore from the save area*/
-	i           = s->save_i;
-	j           = s->save_j;
-	t           = s->save_t;
-	alphaSize   = s->save_alphaSize;
-	nGroups     = s->save_nGroups;
-	nSelectors  = s->save_nSelectors;
-	EOB         = s->save_EOB;
-	groupNo     = s->save_groupNo;
-	groupPos    = s->save_groupPos;
-	nextSym     = s->save_nextSym;
-	nblockMAX   = s->save_nblockMAX;
-	nblock      = s->save_nblock;
-	es          = s->save_es;
-	N           = s->save_N;
-	curr        = s->save_curr;
-	zt          = s->save_zt;
-	zn          = s->save_zn; 
-	zvec        = s->save_zvec;
-	zj          = s->save_zj;
-	gSel        = s->save_gSel;
-	gMinlen     = s->save_gMinlen;
-	gLimit      = s->save_gLimit;
-	gBase       = s->save_gBase;
-	gPerm       = s->save_gPerm;
-
-	retVal = BZ_OK;
-	switch_val = s->state;
-	switch (switch_val) {
-		case BZ_X_MAGIC_1:
-			s->state = BZ_X_MAGIC_1;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			if (uc != 'B') {
-				retVal = BZ_DATA_ERROR_MAGIC;
-				goto save_state_and_return;
-			}
-
-		case BZ_X_MAGIC_2:
-			s->state = BZ_X_MAGIC_2;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			if (uc != 'Z') {
-				retVal = BZ_DATA_ERROR_MAGIC;
-				goto save_state_and_return;
-			}
-
-		case BZ_X_MAGIC_3:
-			s->state = BZ_X_MAGIC_3;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			if (uc != 'h') {
-				retVal = BZ_DATA_ERROR_MAGIC;
-				goto save_state_and_return;
-			}
-
-		case BZ_X_MAGIC_4:
-			s->state = BZ_X_MAGIC_4;
-			if (! get_bits(s, &s->blockSize100k, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			if ((s->blockSize100k < '1') || (s->blockSize100k > '9')) {
-				retVal = BZ_DATA_ERROR_MAGIC;
-				goto save_state_and_return;
-			}
-			s->blockSize100k -= '0';
-
-			s->tt = xmalloc(s->blockSize100k * 100000 * sizeof(int));
-
-		case BZ_X_BLKHDR_1:
-			s->state = BZ_X_BLKHDR_1;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-
-			if (uc == 0x17) {
-				goto endhdr_2;
-			}
-			if (uc != 0x31) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-
-		case BZ_X_BLKHDR_2:
-			s->state = BZ_X_BLKHDR_2;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			if (uc != 0x41) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-
-		case BZ_X_BLKHDR_3:
-			s->state = BZ_X_BLKHDR_3;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			if (uc != 0x59) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-
-		case BZ_X_BLKHDR_4:
-			s->state = BZ_X_BLKHDR_4;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			if (uc != 0x26) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-
-		case BZ_X_BLKHDR_5:
-			s->state = BZ_X_BLKHDR_5;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			if (uc != 0x53) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-
-		case BZ_X_BLKHDR_6:
-			s->state = BZ_X_BLKHDR_6;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			if (uc != 0x59) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-
-		s->currBlockNo++;
-		s->storedBlockCRC = 0;
-
-		case BZ_X_BCRC_1:
-			s->state = BZ_X_BCRC_1;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			s->storedBlockCRC = (s->storedBlockCRC << 8) | ((unsigned int)uc);
-
-		case BZ_X_BCRC_2:
-			s->state = BZ_X_BCRC_2;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			s->storedBlockCRC = (s->storedBlockCRC << 8) | ((unsigned int)uc);
-
-		case BZ_X_BCRC_3:
-			s->state = BZ_X_BCRC_3;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			s->storedBlockCRC = (s->storedBlockCRC << 8) | ((unsigned int)uc);
-
-		case BZ_X_BCRC_4:
-			s->state = BZ_X_BCRC_4;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			s->storedBlockCRC = (s->storedBlockCRC << 8) | ((unsigned int)uc);
-
-		case BZ_X_RANDBIT:
-			s->state = BZ_X_RANDBIT;
-			{
-				int tmp = s->blockRandomised;
-				const int ret = get_bits(s, &tmp, 1);
-				s->blockRandomised = tmp;
-				if (! ret) {
-					retVal = BZ_OK;
-					goto save_state_and_return;
-				}
-			}
-
-			s->origPtr = 0;
-
-		case BZ_X_ORIGPTR_1:
-			s->state = BZ_X_ORIGPTR_1;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			s->origPtr = (s->origPtr << 8) | ((int)uc);
-
-		case BZ_X_ORIGPTR_2:
-			s->state = BZ_X_ORIGPTR_2;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			s->origPtr = (s->origPtr << 8) | ((int)uc);
-
-		case BZ_X_ORIGPTR_3:
-			s->state = BZ_X_ORIGPTR_3;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			s->origPtr = (s->origPtr << 8) | ((int)uc);
-
-			if (s->origPtr < 0) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-			if (s->origPtr > 10 + 100000*s->blockSize100k) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-
-			/*--- Receive the mapping table ---*/
-		case BZ_X_MAPPING_1:
-			for (i = 0; i < 16; i++) {
-				s->state = BZ_X_MAPPING_1;
-				if (! get_bits(s, &uc, 1)) {
-					retVal = BZ_OK;
-					goto save_state_and_return;
-				}
-				if (uc == 1) {
-					s->inUse16[i] = TRUE;
-				} else {
-					s->inUse16[i] = FALSE;
-				}
-			}
-
-			for (i = 0; i < 256; i++) {
-				s->inUse[i] = FALSE;
-			}
-
-			for (i = 0; i < 16; i++) {
-				if (s->inUse16[i]) {
-					for (j = 0; j < 16; j++) {
-					case BZ_X_MAPPING_2:
-						s->state = BZ_X_MAPPING_2;
-						if (! get_bits(s, &uc, 1)) {
-							retVal = BZ_OK;
-							goto save_state_and_return;
-						}
-						if (uc == 1) {
-							s->inUse[i * 16 + j] = TRUE;
-						}
-					}
-				}
-			}
-
-			s->nInUse = 0;
-			for (i = 0; i < 256; i++) {
-				if (s->inUse[i]) {
-					s->seqToUnseq[s->nInUse] = i;
-					s->nInUse++;
-				}
-			}
-			if (s->nInUse == 0) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-			alphaSize = s->nInUse+2;
-
-		/*--- Now the selectors ---*/
-		case BZ_X_SELECTOR_1:
-			s->state = BZ_X_SELECTOR_1;
-			if (! get_bits(s, &nGroups, 3)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			if (nGroups < 2 || nGroups > 6) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-
-		case BZ_X_SELECTOR_2:
-			s->state = BZ_X_SELECTOR_2;
-			if (! get_bits(s, &nSelectors, 15)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			if (nSelectors < 1) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-
-
-
-			for (i = 0; i < nSelectors; i++) {
-				j = 0;
-				while (1) {
-					case BZ_X_SELECTOR_3:
-					s->state = BZ_X_SELECTOR_3;
-					if (! get_bits(s, &uc, 1)) {
-						retVal = BZ_OK;
-						goto save_state_and_return;
-					}
-					if (uc == 0) {
-						break;
-					}
-					j++;
-					if (j >= nGroups) {
-						retVal = BZ_DATA_ERROR;
-						goto save_state_and_return;
-					}
-				}
-				s->selectorMtf[i] = j;
-			}
-
-			/*--- Undo the MTF values for the selectors. ---*/
-			{
-				unsigned char pos[BZ_N_GROUPS], tmp, v;
-				for (v = 0; v < nGroups; v++) {
-					pos[v] = v;
-				}
-				for (i = 0; i < nSelectors; i++) {
-					v = s->selectorMtf[i];
-					tmp = pos[v];
-					while (v > 0) {
-						pos[v] = pos[v-1];
-						v--;
-					}
-					pos[0] = tmp;
-					s->selector[i] = tmp;
-				}
-			}
-
-			/*--- Now the coding tables ---*/
-			for (t = 0; t < nGroups; t++) {
-			case BZ_X_CODING_1:
-				s->state = BZ_X_CODING_1;
-				if (! get_bits(s, &curr, 5)) {
-					retVal = BZ_OK;
-					goto save_state_and_return;
-				}
-			for (i = 0; i < alphaSize; i++) {
-				while (TRUE) {
-					if (curr < 1 || curr > 20) {
-						retVal = BZ_DATA_ERROR;
-						goto save_state_and_return;
-					}
-
-					case BZ_X_CODING_2:
-						s->state = BZ_X_CODING_2;
-						if (! get_bits(s, &uc, 1)) {
-							retVal = BZ_OK;
-							goto save_state_and_return;
-						}
-						if (uc == 0) {
-							break;
-						}
-
-					case BZ_X_CODING_3:
-						s->state = BZ_X_CODING_3;
-						if (! get_bits(s, &uc, 1)) {
-							retVal = BZ_OK;
-							goto save_state_and_return;
-						}
-						if (uc == 0) {
-							curr++;
-						} else {
-							curr--;
-						}
-				}
-				s->len[t][i] = curr;
-			}
-		}
-
-		/*--- Create the Huffman decoding tables ---*/
-		for (t = 0; t < nGroups; t++) {
-			minLen = 32;
-			maxLen = 0;
-			for (i = 0; i < alphaSize; i++) {
-				if (s->len[t][i] > maxLen) {
-					maxLen = s->len[t][i];
-				}
-				if (s->len[t][i] < minLen) {
-					minLen = s->len[t][i];
-				}
-			}
-
-			BZ2_hbCreateDecodeTables ( 
-				&(s->limit[t][0]), 
-				&(s->base[t][0]), 
-				&(s->perm[t][0]), 
-				&(s->len[t][0]),
-				minLen, maxLen, alphaSize
-				);
-
-
-			s->minLens[t] = minLen;
-		}
-
-		/*--- Now the MTF values ---*/
-
-		EOB      = s->nInUse+1;
-		nblockMAX = 100000 * s->blockSize100k;
-		groupNo  = -1;
-		groupPos = 0;
-
-		for (i = 0; i <= 255; i++) {
-			s->unzftab[i] = 0;
-		}
-		/*-- MTF init --*/
-		{
-			int ii, jj, kk;
-			kk = MTFA_SIZE-1;
-			for (ii = 256 / MTFL_SIZE - 1; ii >= 0; ii--) {
-				for (jj = MTFL_SIZE-1; jj >= 0; jj--) {
-					s->mtfa[kk] = (unsigned char)(ii * MTFL_SIZE + jj);
-					kk--;
-				}
-				s->mtfbase[ii] = kk + 1;
-			}
-		}
-		/*-- end MTF init --*/
-
-		nblock = 0;
-
-		if (! get_mtf_val_init()) {
-			goto save_state_and_return;
-		}
-		case BZ_X_MTF_1:
-			s->state = BZ_X_MTF_1;
-			if (! get_bits(s, &zvec, zn)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			while (1) {
-				if (zn > 20 /* the longest code */) {
-					retVal = BZ_DATA_ERROR;
-					goto save_state_and_return;
-				}
-				if (zvec <= gLimit[zn]) {
-					break;
-				}
-				zn++;
-
-				case BZ_X_MTF_2:
-					s->state = BZ_X_MTF_2;
-					if (! get_bits(s, &zj, 1)) {
-						retVal = BZ_OK;
-						goto save_state_and_return;
-					}
-					zvec = (zvec << 1) | zj;
-			}
-			if (zvec - gBase[zn] < 0 || zvec - gBase[zn] >= BZ_MAX_ALPHA_SIZE) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-			nextSym = gPerm[zvec - gBase[zn]];
-
-		while (1) {
-			if (nextSym == EOB) {
-				break;
-			}
 
-		if (nextSym == BZ_RUNA || nextSym == BZ_RUNB) {
-			es = -1;
-			N = 1;
-			do {
-				if (nextSym == BZ_RUNA) {
-					es = es + (0+1) * N;
-				} else {
-					if (nextSym == BZ_RUNB) {
-						es = es + (1+1) * N;
-					}
-				}
-				N = N * 2;
-				if (! get_mtf_val_init()) {
-					goto save_state_and_return;
-				}
-				case BZ_X_MTF_3:
-					s->state = BZ_X_MTF_3;
-					if (! get_bits(s, &zvec, zn)) {
-						retVal = BZ_OK;
-						goto save_state_and_return;
-					}
-					while (1) {
-						if (zn > 20 /* the longest code */) {
-							retVal = BZ_DATA_ERROR;
-							goto save_state_and_return;
-						}
-						if (zvec <= gLimit[zn]) {
-							break;
-						}
-						zn++;
-
-						case BZ_X_MTF_4:
-							s->state = BZ_X_MTF_4;
-							if (! get_bits(s, &zj, 1)) {
-								retVal = BZ_OK;
-								goto save_state_and_return;
-							}
-							zvec = (zvec << 1) | zj;
-					}
-					if (zvec - gBase[zn] < 0 || zvec - gBase[zn] >= BZ_MAX_ALPHA_SIZE) {
-						retVal = BZ_DATA_ERROR;
-						goto save_state_and_return;
-
-					}
-					nextSym = gPerm[zvec - gBase[zn]];
-			}
-			while (nextSym == BZ_RUNA || nextSym == BZ_RUNB);
-
-			es++;
-			uc = s->seqToUnseq[ s->mtfa[s->mtfbase[0]] ];
-			s->unzftab[uc] += es;
-
-			while (es > 0) {
-				if (nblock >= nblockMAX) {
-					retVal = BZ_DATA_ERROR;
-					goto save_state_and_return;
-				}
-				s->tt[nblock] = (unsigned int)uc;
-				nblock++;
-				es--;
-			}
-			continue;
-		} else {
-			if (nblock >= nblockMAX) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-			/*-- uc = MTF ( nextSym-1 ) --*/
-			{
-				int ii, jj, kk, pp, lno, off;
-				unsigned int nn;
-				nn = (unsigned int)(nextSym - 1);
-
-				if (nn < MTFL_SIZE) {
-					/* avoid general-case expense */
-					pp = s->mtfbase[0];
-					uc = s->mtfa[pp+nn];
-					while (nn > 3) {
-						int z = pp+nn;
-						s->mtfa[(z)  ] = s->mtfa[(z)-1];
-						s->mtfa[(z)-1] = s->mtfa[(z)-2];
-						s->mtfa[(z)-2] = s->mtfa[(z)-3];
-						s->mtfa[(z)-3] = s->mtfa[(z)-4];
-						nn -= 4;
-					}
-					while (nn > 0) { 
-						s->mtfa[(pp+nn)] = s->mtfa[(pp+nn)-1]; nn--; 
-					}
-					s->mtfa[pp] = uc;
-				} else { 
-					/* general case */
-					lno = nn / MTFL_SIZE;
-					off = nn % MTFL_SIZE;
-					pp = s->mtfbase[lno] + off;
-					uc = s->mtfa[pp];
-					while (pp > s->mtfbase[lno]) { 
-						s->mtfa[pp] = s->mtfa[pp-1];
-						pp--; 
-					}
-					s->mtfbase[lno]++;
-					while (lno > 0) {
-						s->mtfbase[lno]--;
-						s->mtfa[s->mtfbase[lno]] = s->mtfa[s->mtfbase[lno-1] + MTFL_SIZE - 1];
-						lno--;
-					}
-					s->mtfbase[0]--;
-					s->mtfa[s->mtfbase[0]] = uc;
-					if (s->mtfbase[0] == 0) {
-						kk = MTFA_SIZE-1;
-						for (ii = 256 / MTFL_SIZE-1; ii >= 0; ii--) {
-							for (jj = MTFL_SIZE-1; jj >= 0; jj--) {
-								s->mtfa[kk] = s->mtfa[s->mtfbase[ii] + jj];
-								kk--;
-							}
-							s->mtfbase[ii] = kk + 1;
-						}
-					}
-				}
-			}
-			/*-- end uc = MTF ( nextSym-1 ) --*/
-
-			s->unzftab[s->seqToUnseq[uc]]++;
-			s->tt[nblock]   = (unsigned int)(s->seqToUnseq[uc]);
-			nblock++;
-
-			if (! get_mtf_val_init()) {
-				goto save_state_and_return;
-			}
-			case BZ_X_MTF_5:
-				s->state = BZ_X_MTF_5;
-				if (! get_bits(s, &zvec, zn)) {
-					retVal = BZ_OK;
-					goto save_state_and_return;
-				}
-				while (1) {
-					if (zn > 20 /* the longest code */) {
-						retVal = BZ_DATA_ERROR;
-						goto save_state_and_return;
-					}
-					if (zvec <= gLimit[zn]) {
-						break;
-					}
-					zn++;
-
-					case BZ_X_MTF_6:
-						s->state = BZ_X_MTF_6;
-						if (! get_bits(s, &zj, 1)) {
-							retVal = BZ_OK;
-							goto save_state_and_return;
-						}
-						zvec = (zvec << 1) | zj;
-				}
-			if (zvec - gBase[zn] < 0 || zvec - gBase[zn] >= BZ_MAX_ALPHA_SIZE) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-			nextSym = gPerm[zvec - gBase[zn]];
-			continue;
-		}
-	}
-
-	/* Now we know what nblock is, we can do a better sanity
-		check on s->origPtr.
-	*/
-	if (s->origPtr < 0 || s->origPtr >= nblock) {
-		retVal = BZ_DATA_ERROR;
-		goto save_state_and_return;
-	}
-	s->state_out_len = 0;
-	s->state_out_ch  = 0;
-	s->calculatedBlockCRC = 0xffffffffL;
-	s->state = BZ_X_OUTPUT;
-
-	/*-- Set up cftab to facilitate generation of T^(-1) --*/
-	s->cftab[0] = 0;
-	for (i = 1; i <= 256; i++) {
-		s->cftab[i] = s->unzftab[i-1];
-	}
-	for (i = 1; i <= 256; i++) {
-		s->cftab[i] += s->cftab[i-1];
-	}
-
-	/*-- compute the T^(-1) vector --*/
-	for (i = 0; i < nblock; i++) {
-		uc = (unsigned char)(s->tt[i] & 0xff);
-		s->tt[s->cftab[uc]] |= (i << 8);
-		s->cftab[uc]++;
-	}
-
-	s->tPos = s->tt[s->origPtr] >> 8;
-	s->nblock_used = 0;
-	if (s->blockRandomised) {
-		s->rNToGo = 0;
-		s->rTPos  = 0;
-		s->k0 = bz_get_fast(s);
-
-		s->nblock_used++;
-		bz_rand_udp_mask(s);
-		s->k0 ^= ((s->rNToGo == 1) ? 1 : 0);
-	} else {
-		s->k0 = bz_get_fast(s);
-		s->nblock_used++;
-	}
-
-		retVal = BZ_OK;
-		goto save_state_and_return;
-
-endhdr_2:
-		case BZ_X_ENDHDR_2:
-			s->state = BZ_X_ENDHDR_2;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			if (uc != 0x72) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-
-		case BZ_X_ENDHDR_3:
-			s->state = BZ_X_ENDHDR_3;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			if (uc != 0x45) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-
-		case BZ_X_ENDHDR_4:
-			s->state = BZ_X_ENDHDR_4;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			if (uc != 0x38) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-
-		case BZ_X_ENDHDR_5:
-			s->state = BZ_X_ENDHDR_5;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			if (uc != 0x50) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-
-		case BZ_X_ENDHDR_6:
-			s->state = BZ_X_ENDHDR_6;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			if (uc != 0x90) {
-				retVal = BZ_DATA_ERROR;
-				goto save_state_and_return;
-			}
-			s->storedCombinedCRC = 0;
-
-		case BZ_X_CCRC_1:
-			s->state = BZ_X_CCRC_1;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((unsigned int)uc);
-		case BZ_X_CCRC_2:
-			s->state = BZ_X_CCRC_2;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((unsigned int)uc);
-
-		case BZ_X_CCRC_3:
-			s->state = BZ_X_CCRC_3;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((unsigned int)uc);
-
-		case BZ_X_CCRC_4:
-			s->state = BZ_X_CCRC_4;
-			if (! get_bits(s, &uc, 8)) {
-				retVal = BZ_OK;
-				goto save_state_and_return;
-			}
-			s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((unsigned int)uc);
-
-		s->state = BZ_X_IDLE;
-		retVal = BZ_STREAM_END;
-		goto save_state_and_return;
-
-	}
-
-save_state_and_return:
-	s->save_i           = i;
-	s->save_j           = j;
-	s->save_t           = t;
-	s->save_alphaSize   = alphaSize;
-	s->save_nGroups     = nGroups;
-	s->save_nSelectors  = nSelectors;
-	s->save_EOB         = EOB;
-	s->save_groupNo     = groupNo;
-	s->save_groupPos    = groupPos;
-	s->save_nextSym     = nextSym;
-	s->save_nblockMAX   = nblockMAX;
-	s->save_nblock      = nblock;
-	s->save_es          = es;
-	s->save_N           = N;
-	s->save_curr        = curr;
-	s->save_zt          = zt;
-	s->save_zn          = zn;
-	s->save_zvec        = zvec;
-	s->save_zj          = zj;
-	s->save_gSel        = gSel;
-	s->save_gMinlen     = gMinlen;
-	s->save_gLimit      = gLimit;
-	s->save_gBase       = gBase;
-	s->save_gPerm       = gPerm;
-
-	return retVal;   
-}
-
-//int BZ2_bzDecompressInit(bz_stream* strm, int verbosity_level, int small)
-static inline int BZ2_bzDecompressInit(bz_stream* strm)
-{
-	DState* s;
-
-//	if (verbosity_level < 0 || verbosity_level > 4) {
-//		return BZ_PARAM_ERROR;
-//	}
-	s = xmalloc(sizeof(DState));
-	s->strm                  = strm;
-	strm->state              = s;
-	s->state                 = BZ_X_MAGIC_1;
-	s->bsLive                = 0;
-	s->bsBuff                = 0;
-	s->calculatedCombinedCRC = 0;
-	s->tt                    = NULL;
-	s->currBlockNo           = 0;
-
-	return BZ_OK;
-}
-
-static void bz_seterr(int eee, int *bzerror, bzFile **bzf)
-{
-	if (bzerror != NULL) {
-		*bzerror = eee;
-	}
-	if (*bzf != NULL) {
-		(*bzf)->lastErr = eee;
-	}
-}
-
-static void BZ2_bzReadClose(int *bzerror, void *b)
-{
-	bzFile* bzf = (bzFile*)b;
-
-	bz_seterr(BZ_OK, bzerror, &bzf);
-
-	if (bzf->initialisedOk) {
-		bz_stream *strm = &(bzf->strm);
-		DState *s;
-		if (strm == NULL) {
-			return;
-		}
-		s = strm->state;
-		if ((s == NULL) || (s->strm != strm)) {
-			return;
-		}
-		free(s->tt);
-		free(strm->state);
-		strm->state = NULL;
-		return;
-	}
-	free(bzf);
-}
-
-static void unRLE_obuf_to_output_FAST(DState *s)
-{
-	unsigned char k1;
-
-	if (s->blockRandomised) {
-		while (1) {
-			/* try to finish existing run */
-			while (1) {
-				if (s->strm->avail_out == 0) {
-					return;
-				}
-				if (s->state_out_len == 0) {
-					break;
-				}
-				*((unsigned char *)(s->strm->next_out)) = s->state_out_ch;
-				s->calculatedBlockCRC = (s->calculatedBlockCRC << 8) ^
-					BZ2_crc32Table[(s->calculatedBlockCRC >> 24) ^
-					((unsigned char)s->state_out_ch)];
-				s->state_out_len--;
-				s->strm->next_out++;
-				s->strm->avail_out--;
-			}
-   
-			/* can a new run be started? */
-			if (s->nblock_used == s->save_nblock+1) {
-				return;
-			}
-			s->state_out_len = 1;
-			s->state_out_ch = s->k0;
-			k1 = bz_get_fast(s);
-			bz_rand_udp_mask(s);
-			k1 ^= ((s->rNToGo == 1) ? 1 : 0);
-			s->nblock_used++;
-			if (s->nblock_used == s->save_nblock+1) {
-				continue;
-			}
-			if (k1 != s->k0) {
-				s->k0 = k1;
-				continue;
-			}
-
-			s->state_out_len = 2;
-			k1 = bz_get_fast(s);
-			bz_rand_udp_mask(s);
-			k1 ^= ((s->rNToGo == 1) ? 1 : 0);
-			s->nblock_used++;
-			if (s->nblock_used == s->save_nblock+1) {
-				continue;
-			}
-			if (k1 != s->k0) {
-				s->k0 = k1;
-				continue;
-			}
-			s->state_out_len = 3;
-			k1 = bz_get_fast(s);
-			bz_rand_udp_mask(s);
-			k1 ^= ((s->rNToGo == 1) ? 1 : 0);
-			s->nblock_used++;
-			if (s->nblock_used == s->save_nblock+1) {
-				continue;
-			}
-			if (k1 != s->k0) {
-				s->k0 = k1;
-				continue;
-			}
-
-			k1 = bz_get_fast(s);
-			bz_rand_udp_mask(s);
-			k1 ^= ((s->rNToGo == 1) ? 1 : 0);
-			s->nblock_used++;
-			s->state_out_len = ((int)k1) + 4;
-			s->k0 = bz_get_fast(s);
-			bz_rand_udp_mask(s);
-			s->k0 ^= ((s->rNToGo == 1) ? 1 : 0);
-			s->nblock_used++;
-		}
-	} else {
-		/* restore */
-		unsigned int c_calculatedBlockCRC = s->calculatedBlockCRC;
-		unsigned char c_state_out_ch       = s->state_out_ch;
-		int c_state_out_len      = s->state_out_len;
-		int c_nblock_used        = s->nblock_used;
-		int c_k0                 = s->k0;
-		unsigned int	*c_tt                 = s->tt;
-		unsigned int	c_tPos               = s->tPos;
-		char	*cs_next_out          = s->strm->next_out;
-		unsigned int  cs_avail_out         = s->strm->avail_out;
-		/* end restore */
-
-		int        s_save_nblockPP = s->save_nblock+1;
-
-		while (1) {
-			/* try to finish existing run */
-			if (c_state_out_len > 0) {
-				while (TRUE) {
-					if (cs_avail_out == 0) {
-						goto return_notr;
-					}
-					if (c_state_out_len == 1) {
-						break;
-					}
-					*((unsigned char *)(cs_next_out)) = c_state_out_ch;
-					c_calculatedBlockCRC = (c_calculatedBlockCRC << 8) ^
-						BZ2_crc32Table[(c_calculatedBlockCRC >> 24) ^
-						((unsigned char)c_state_out_ch)];
-					c_state_out_len--;
-					cs_next_out++;
-					cs_avail_out--;
-				}
-s_state_out_len_eq_one:
-				{
-					if (cs_avail_out == 0) { 
-						c_state_out_len = 1;
-						goto return_notr;
-					}
-					*((unsigned char *)(cs_next_out)) = c_state_out_ch;
-					c_calculatedBlockCRC = (c_calculatedBlockCRC << 8) ^
-						BZ2_crc32Table[(c_calculatedBlockCRC >> 24) ^
-						((unsigned char)c_state_out_ch)];
-					cs_next_out++;
-					cs_avail_out--;
-				}
-			}   
-			/* can a new run be started? */
-			if (c_nblock_used == s_save_nblockPP) {
-				c_state_out_len = 0; goto return_notr;
-			}
-			c_state_out_ch = c_k0;
-			c_tPos = c_tt[c_tPos];
-			k1 = (unsigned char)(c_tPos & 0xff);
-			c_tPos >>= 8;
-
-			c_nblock_used++;
-
-			if (k1 != c_k0) { 
-				c_k0 = k1;
-				goto s_state_out_len_eq_one; 
-			}
-
-			if (c_nblock_used == s_save_nblockPP) {
-				goto s_state_out_len_eq_one;
-			}
-
-			c_state_out_len = 2;
-			c_tPos = c_tt[c_tPos];
-			k1 = (unsigned char)(c_tPos & 0xff);
-			c_tPos >>= 8;
-
-			c_nblock_used++;
-			if (c_nblock_used == s_save_nblockPP) {
-				continue;
-			}
-			if (k1 != c_k0) {
-				c_k0 = k1;
-				continue;
-			}
-
-			c_state_out_len = 3;
-			c_tPos = c_tt[c_tPos];
-			k1 = (unsigned char)(c_tPos & 0xff);
-			c_tPos >>= 8;
-
-			c_nblock_used++;
-			if (c_nblock_used == s_save_nblockPP) {
-				continue;
-			}
-			if (k1 != c_k0) {
-				c_k0 = k1;
-				continue;
-			}
-   
-			c_tPos = c_tt[c_tPos];
-			k1 = (unsigned char)(c_tPos & 0xff);
-			c_tPos >>= 8;
-
-			c_nblock_used++;
-			c_state_out_len = ((int)k1) + 4;
-
-			c_tPos = c_tt[c_tPos];
-			c_k0 = (unsigned char)(c_tPos & 0xff);
-			c_tPos >>= 8;
-
-			c_nblock_used++;
-		}
-
-return_notr:
-
-		/* save */
-		s->calculatedBlockCRC = c_calculatedBlockCRC;
-		s->state_out_ch       = c_state_out_ch;
-		s->state_out_len      = c_state_out_len;
-		s->nblock_used        = c_nblock_used;
-		s->k0                 = c_k0;
-		s->tt                 = c_tt;
-		s->tPos               = c_tPos;
-		s->strm->next_out     = cs_next_out;
-		s->strm->avail_out    = cs_avail_out;
-		/* end save */
-	}
-}
-static inline
-int BZ2_bzDecompress(bz_stream *strm)
-{
-	DState* s;
-	s = strm->state;
-
-	while (1) {
-		if (s->state == BZ_X_IDLE) {
-			return BZ_SEQUENCE_ERROR;
-		}
-		if (s->state == BZ_X_OUTPUT) {
-			unRLE_obuf_to_output_FAST(s);
-			if (s->nblock_used == s->save_nblock+1 && s->state_out_len == 0) {
-				s->calculatedBlockCRC = ~(s->calculatedBlockCRC);
-				if (s->calculatedBlockCRC != s->storedBlockCRC) {
-					return BZ_DATA_ERROR;
-				}
-				s->calculatedCombinedCRC = (s->calculatedCombinedCRC << 1) | (s->calculatedCombinedCRC >> 31);
-				s->calculatedCombinedCRC ^= s->calculatedBlockCRC;
-				s->state = BZ_X_BLKHDR_1;
-			} else {
-				return BZ_OK;
-			}
-		}
-		if (s->state >= BZ_X_MAGIC_1) {
-			int r = BZ2_decompress(s);
-			if (r == BZ_STREAM_END) {
-				if (s->calculatedCombinedCRC != s->storedCombinedCRC) {
-					return BZ_DATA_ERROR;
-				}
-				return r;
-			}
-			if (s->state != BZ_X_OUTPUT) {
-				return r;
-			}
-		}
-	}
-
-	return(0);  /*NOTREACHED*/
-}
-
-static inline int BZ2_bzRead(int *bzerror, void *b, void *buf, int len)
-{
-	int n, ret;
-	bzFile *bzf = (bzFile*)b;
-
-	bz_seterr(BZ_OK, bzerror, &bzf);
-
-	if (len == 0) {
-		bz_seterr(BZ_OK, bzerror, &bzf);
-		return 0;
-	}
-
-	bzf->strm.avail_out = len;
-	bzf->strm.next_out = buf;
-
-	while (1) {
-		if (ferror(bzf->handle)) {
-			bz_seterr(BZ_IO_ERROR, bzerror, &bzf);
-			return 0;
-		}
-		if ((bzf->strm.avail_in == 0) && !myfeof(bzf->handle)) {
-			n = fread(bzf->buf, sizeof(unsigned char), BZ_MAX_UNUSED, bzf->handle);
-			if (ferror(bzf->handle)) {
-				bz_seterr(BZ_IO_ERROR, bzerror, &bzf);
-				return 0;
-			}
-			bzf->bufN = n;
-			bzf->strm.avail_in = bzf->bufN;
-			bzf->strm.next_in = bzf->buf;
-		}
-
-		ret = BZ2_bzDecompress(&(bzf->strm));
-
-		if ((ret != BZ_OK) && (ret != BZ_STREAM_END)) {
-			bz_seterr(ret, bzerror, &bzf);
-			return 0;
-		}
-
-		if ((ret == BZ_OK) && myfeof(bzf->handle) &&
-			(bzf->strm.avail_in == 0) && (bzf->strm.avail_out > 0)) {
-			bz_seterr(BZ_UNEXPECTED_EOF, bzerror, &bzf);
-			return(0);
-		}
-
-		if (ret == BZ_STREAM_END) {
-			bz_seterr(BZ_STREAM_END, bzerror, &bzf);
-			return(len - bzf->strm.avail_out);
-		}
-		if (bzf->strm.avail_out == 0) {
-			bz_seterr(BZ_OK, bzerror, &bzf);
-			return(len);
-		}
-	}
-	return(0); /*not reached*/
-}
-
-static inline void *BZ2_bzReadOpen(int *bzerror, FILE *f, void *unused, int nUnused)
-{
-	bzFile *bzf = xmalloc(sizeof(bzFile));
-	int ret;
-
-	bz_seterr(BZ_OK, bzerror, &bzf);
-
-	bzf->initialisedOk = FALSE;
-	bzf->handle        = f;
-	bzf->bufN          = 0;
-
-	ret = BZ2_bzDecompressInit(&(bzf->strm));
-	if (ret != BZ_OK) {
-		bz_seterr(ret, bzerror, &bzf);
-		free(bzf);
-		return NULL;
-	}
-
-	while (nUnused > 0) {
-		bzf->buf[bzf->bufN] = *((unsigned char *)(unused)); bzf->bufN++;
-		unused = ((void *)( 1 + ((unsigned char *)(unused))  ));
-		nUnused--;
-	}
-	bzf->strm.avail_in = bzf->bufN;
-	bzf->strm.next_in  = bzf->buf;
-
-	bzf->initialisedOk = TRUE;
-	return bzf;   
-}
-
-static inline unsigned char uncompressStream(FILE *zStream, FILE *stream)
-{
-	unsigned char unused[BZ_MAX_UNUSED];
-	unsigned char *unusedTmp;
-	unsigned char obuf[5000];
-	bzFile *bzf = NULL;
-	int bzerr_dummy;
-	int bzerr;
-	int nread;
-	int nUnused;
-	int streamNo;
-	int ret;
-	int i;
-
-	nUnused = 0;
-	streamNo = 0;
-
-	if (ferror(stream)) {
-		goto errhandler_io;
-	}
-	if (ferror(zStream)) {
-		goto errhandler_io;
-	}
-
-	while(1) {
-		bzf = BZ2_bzReadOpen(&bzerr, zStream, unused, nUnused);
-		if (bzf == NULL || bzerr != BZ_OK) {
-			goto errhandler;
-		}
-		streamNo++;
-
-		while (bzerr == BZ_OK) {
-			nread = BZ2_bzRead(&bzerr, bzf, obuf, 5000);
-			if (bzerr == BZ_DATA_ERROR_MAGIC) {
-				goto errhandler;
-			}
-			if ((bzerr == BZ_OK || bzerr == BZ_STREAM_END) && nread > 0) {
-				fwrite(obuf, sizeof(unsigned char), nread, stream);
-			}
-			if (ferror(stream)) {
-				goto errhandler_io;
-			}
-		}
-		if (bzerr != BZ_STREAM_END) {
-			goto errhandler;
-		}
-		nUnused = bzf->strm.avail_in;
-		unusedTmp = bzf->strm.next_in;
-		bz_seterr(BZ_OK, &bzerr, &bzf);
-		for (i = 0; i < nUnused; i++) {
-			unused[i] = unusedTmp[i];
-		}
-		BZ2_bzReadClose(&bzerr, bzf);
-		if ((nUnused == 0) && myfeof(zStream)) {
-			break;
-		}
-	}
-
-	if (ferror(zStream)) {
-		goto errhandler_io;
-	}
-	ret = fclose(zStream);
-	if (ret == EOF) {
-		goto errhandler_io;
-	}
-	if (ferror(stream)) {
-		goto errhandler_io;
-	}
-	ret = fflush(stream);
-	if (ret != 0) {
-		goto errhandler_io;
-	}
-	if (stream != stdout) {
-		ret = fclose(stream);
-		if (ret == EOF) {
-			goto errhandler_io;
-		}
-	}
-	return TRUE;
-
-errhandler:
-	BZ2_bzReadClose ( &bzerr_dummy, bzf );
-	switch (bzerr) {
-		case BZ_IO_ERROR:
-errhandler_io:
-			error_msg("\n%s: I/O or other error, bailing out.  "
-				"Possible reason follows.\n", applet_name);
-			perror(applet_name);
-			exit(1);
-		case BZ_DATA_ERROR:
-			error_msg("\n%s: Data integrity error when decompressing.\n", applet_name);
-			exit(2);
-		case BZ_UNEXPECTED_EOF:
-			error_msg("\n%s: Compressed file ends unexpectedly;\n\t"
-				"perhaps it is corrupted?  *Possible* reason follows.\n", applet_name);
-			perror(applet_name);
-			exit(2);
-		case BZ_DATA_ERROR_MAGIC:
-			if (zStream != stdin) {
-				fclose(zStream);
-			}
-			if (stream != stdout) {
-				fclose(stream);
-			}
-			if (streamNo == 1) {
-				return FALSE;
-			} else {
-				return TRUE;
-			}
-	}
-
-	return(TRUE); /*notreached*/
-}
+#include "busybox.h"
+#include "unarchive.h"
 
 int bunzip2_main(int argc, char **argv)
 {