lib: bzip2: move bzip2 files to lib/bzip2/ directory

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>

7 files changed, 3306 insertions, 0 deletions

diff --git a/lib/bzip2/Makefile b/lib/bzip2/Makefile
new file mode 100644
index 0000000..929c24e
--- /dev/null
+++ b/lib/bzip2/Makefile
@@ -0,0 +1,2 @@
+obj-y += bzlib.o bzlib_crctable.o bzlib_decompress.o \
+	bzlib_randtable.o bzlib_huffman.o
diff --git a/lib/bzip2/bzlib.c b/lib/bzip2/bzlib.c
new file mode 100644
index 0000000..5844e18
--- /dev/null
+++ b/lib/bzip2/bzlib.c
@@ -0,0 +1,1601 @@
+#include <config.h>
+#include <common.h>
+#include <watchdog.h>
+
+/*
+ * This file is a modified version of bzlib.c from the bzip2-1.0.2
+ * distribution which can be found at http://sources.redhat.com/bzip2/
+ */
+
+/*-------------------------------------------------------------*/
+/*--- Library top-level functions.                          ---*/
+/*---                                               bzlib.c ---*/
+/*-------------------------------------------------------------*/
+
+/*--
+  This file is a part of bzip2 and/or libbzip2, a program and
+  library for lossless, block-sorting data compression.
+
+  Copyright (C) 1996-2002 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.
+--*/
+
+/*--
+   CHANGES
+   ~~~~~~~
+   0.9.0 -- original version.
+
+   0.9.0a/b -- no changes in this file.
+
+   0.9.0c
+      * made zero-length BZ_FLUSH work correctly in bzCompress().
+      * fixed bzWrite/bzRead to ignore zero-length requests.
+      * fixed bzread to correctly handle read requests after EOF.
+      * wrong parameter order in call to bzDecompressInit in
+	bzBuffToBuffDecompress.  Fixed.
+--*/
+
+#include "bzlib_private.h"
+
+/*---------------------------------------------------*/
+/*--- Compression stuff                           ---*/
+/*---------------------------------------------------*/
+
+
+/*---------------------------------------------------*/
+#ifndef BZ_NO_STDIO
+void BZ2_bz__AssertH__fail ( int errcode )
+{
+   fprintf(stderr,
+      "\n\nbzip2/libbzip2: internal error number %d.\n"
+      "This is a bug in bzip2/libbzip2, %s.\n"
+      "Please report it to me at: jseward@acm.org.  If this happened\n"
+      "when you were using some program which uses libbzip2 as a\n"
+      "component, you should also report this bug to the author(s)\n"
+      "of that program.  Please make an effort to report this bug;\n"
+      "timely and accurate bug reports eventually lead to higher\n"
+      "quality software.  Thanks.  Julian Seward, 30 December 2001.\n\n",
+      errcode,
+      BZ2_bzlibVersion()
+   );
+
+   if (errcode == 1007) {
+   fprintf(stderr,
+      "\n*** A special note about internal error number 1007 ***\n"
+      "\n"
+      "Experience suggests that a common cause of i.e. 1007\n"
+      "is unreliable memory or other hardware.  The 1007 assertion\n"
+      "just happens to cross-check the results of huge numbers of\n"
+      "memory reads/writes, and so acts (unintendedly) as a stress\n"
+      "test of your memory system.\n"
+      "\n"
+      "I suggest the following: try compressing the file again,\n"
+      "possibly monitoring progress in detail with the -vv flag.\n"
+      "\n"
+      "* If the error cannot be reproduced, and/or happens at different\n"
+      "  points in compression, you may have a flaky memory system.\n"
+      "  Try a memory-test program.  I have used Memtest86\n"
+      "  (www.memtest86.com).  At the time of writing it is free (GPLd).\n"
+      "  Memtest86 tests memory much more thorougly than your BIOSs\n"
+      "  power-on test, and may find failures that the BIOS doesn't.\n"
+      "\n"
+      "* If the error can be repeatably reproduced, this is a bug in\n"
+      "  bzip2, and I would very much like to hear about it.  Please\n"
+      "  let me know, and, ideally, save a copy of the file causing the\n"
+      "  problem -- without which I will be unable to investigate it.\n"
+      "\n"
+   );
+   }
+
+   exit(3);
+}
+#endif
+
+
+/*---------------------------------------------------*/
+static
+int bz_config_ok ( void )
+{
+   if (sizeof(int)   != 4) return 0;
+   if (sizeof(short) != 2) return 0;
+   if (sizeof(char)  != 1) return 0;
+   return 1;
+}
+
+
+/*---------------------------------------------------*/
+static
+void* default_bzalloc ( void* opaque, Int32 items, Int32 size )
+{
+   void* v = malloc ( items * size );
+   return v;
+}
+
+static
+void default_bzfree ( void* opaque, void* addr )
+{
+   if (addr != NULL) free ( addr );
+}
+
+#ifndef BZ_NO_COMPRESS
+/*---------------------------------------------------*/
+static
+void prepare_new_block ( EState* s )
+{
+   Int32 i;
+   s->nblock = 0;
+   s->numZ = 0;
+   s->state_out_pos = 0;
+   BZ_INITIALISE_CRC ( s->blockCRC );
+   for (i = 0; i < 256; i++) s->inUse[i] = False;
+   s->blockNo++;
+}
+
+
+/*---------------------------------------------------*/
+static
+void init_RL ( EState* s )
+{
+   s->state_in_ch  = 256;
+   s->state_in_len = 0;
+}
+
+
+static
+Bool isempty_RL ( EState* s )
+{
+   if (s->state_in_ch < 256 && s->state_in_len > 0)
+      return False; else
+      return True;
+}
+
+/*---------------------------------------------------*/
+int BZ_API(BZ2_bzCompressInit)
+		    ( bz_stream* strm,
+		     int        blockSize100k,
+		     int        verbosity,
+		     int        workFactor )
+{
+   Int32   n;
+   EState* s;
+
+   if (!bz_config_ok()) return BZ_CONFIG_ERROR;
+
+   if (strm == NULL ||
+       blockSize100k < 1 || blockSize100k > 9 ||
+       workFactor < 0 || workFactor > 250)
+     return BZ_PARAM_ERROR;
+
+   if (workFactor == 0) workFactor = 30;
+   if (strm->bzalloc == NULL) strm->bzalloc = default_bzalloc;
+   if (strm->bzfree == NULL) strm->bzfree = default_bzfree;
+
+   s = BZALLOC( sizeof(EState) );
+   if (s == NULL) return BZ_MEM_ERROR;
+   s->strm = strm;
+
+   s->arr1 = NULL;
+   s->arr2 = NULL;
+   s->ftab = NULL;
+
+   n       = 100000 * blockSize100k;
+   s->arr1 = BZALLOC( n                  * sizeof(UInt32) );
+   s->arr2 = BZALLOC( (n+BZ_N_OVERSHOOT) * sizeof(UInt32) );
+   s->ftab = BZALLOC( 65537              * sizeof(UInt32) );
+
+   if (s->arr1 == NULL || s->arr2 == NULL || s->ftab == NULL) {
+      if (s->arr1 != NULL) BZFREE(s->arr1);
+      if (s->arr2 != NULL) BZFREE(s->arr2);
+      if (s->ftab != NULL) BZFREE(s->ftab);
+      if (s       != NULL) BZFREE(s);
+      return BZ_MEM_ERROR;
+   }
+
+   s->blockNo           = 0;
+   s->state             = BZ_S_INPUT;
+   s->mode              = BZ_M_RUNNING;
+   s->combinedCRC       = 0;
+   s->blockSize100k     = blockSize100k;
+   s->nblockMAX         = 100000 * blockSize100k - 19;
+   s->verbosity         = verbosity;
+   s->workFactor        = workFactor;
+
+   s->block             = (UChar*)s->arr2;
+   s->mtfv              = (UInt16*)s->arr1;
+   s->zbits             = NULL;
+   s->ptr               = (UInt32*)s->arr1;
+
+   strm->state          = s;
+   strm->total_in_lo32  = 0;
+   strm->total_in_hi32  = 0;
+   strm->total_out_lo32 = 0;
+   strm->total_out_hi32 = 0;
+   init_RL ( s );
+   prepare_new_block ( s );
+   return BZ_OK;
+}
+
+
+/*---------------------------------------------------*/
+static
+void add_pair_to_block ( EState* s )
+{
+   Int32 i;
+   UChar ch = (UChar)(s->state_in_ch);
+   for (i = 0; i < s->state_in_len; i++) {
+      BZ_UPDATE_CRC( s->blockCRC, ch );
+   }
+   s->inUse[s->state_in_ch] = True;
+   switch (s->state_in_len) {
+      case 1:
+	 s->block[s->nblock] = (UChar)ch; s->nblock++;
+	 break;
+      case 2:
+	 s->block[s->nblock] = (UChar)ch; s->nblock++;
+	 s->block[s->nblock] = (UChar)ch; s->nblock++;
+	 break;
+      case 3:
+	 s->block[s->nblock] = (UChar)ch; s->nblock++;
+	 s->block[s->nblock] = (UChar)ch; s->nblock++;
+	 s->block[s->nblock] = (UChar)ch; s->nblock++;
+	 break;
+      default:
+	 s->inUse[s->state_in_len-4] = True;
+	 s->block[s->nblock] = (UChar)ch; s->nblock++;
+	 s->block[s->nblock] = (UChar)ch; s->nblock++;
+	 s->block[s->nblock] = (UChar)ch; s->nblock++;
+	 s->block[s->nblock] = (UChar)ch; s->nblock++;
+	 s->block[s->nblock] = ((UChar)(s->state_in_len-4));
+	 s->nblock++;
+	 break;
+   }
+}
+
+
+/*---------------------------------------------------*/
+static
+void flush_RL ( EState* s )
+{
+   if (s->state_in_ch < 256) add_pair_to_block ( s );
+   init_RL ( s );
+}
+
+
+/*---------------------------------------------------*/
+#define ADD_CHAR_TO_BLOCK(zs,zchh0)               \
+{                                                 \
+   UInt32 zchh = (UInt32)(zchh0);                 \
+   /*-- fast track the common case --*/           \
+   if (zchh != zs->state_in_ch &&                 \
+       zs->state_in_len == 1) {                   \
+      UChar ch = (UChar)(zs->state_in_ch);        \
+      BZ_UPDATE_CRC( zs->blockCRC, ch );          \
+      zs->inUse[zs->state_in_ch] = True;          \
+      zs->block[zs->nblock] = (UChar)ch;          \
+      zs->nblock++;                               \
+      zs->state_in_ch = zchh;                     \
+   }                                              \
+   else                                           \
+   /*-- general, uncommon cases --*/              \
+   if (zchh != zs->state_in_ch ||                 \
+      zs->state_in_len == 255) {                  \
+      if (zs->state_in_ch < 256)                  \
+	 add_pair_to_block ( zs );                \
+      zs->state_in_ch = zchh;                     \
+      zs->state_in_len = 1;                       \
+   } else {                                       \
+      zs->state_in_len++;                         \
+   }                                              \
+}
+
+
+/*---------------------------------------------------*/
+static
+Bool copy_input_until_stop ( EState* s )
+{
+   Bool progress_in = False;
+
+   if (s->mode == BZ_M_RUNNING) {
+
+      /*-- fast track the common case --*/
+      while (True) {
+	 /*-- block full? --*/
+	 if (s->nblock >= s->nblockMAX) break;
+	 /*-- no input? --*/
+	 if (s->strm->avail_in == 0) break;
+	 progress_in = True;
+	 ADD_CHAR_TO_BLOCK ( s, (UInt32)(*((UChar*)(s->strm->next_in))) );
+	 s->strm->next_in++;
+	 s->strm->avail_in--;
+	 s->strm->total_in_lo32++;
+	 if (s->strm->total_in_lo32 == 0) s->strm->total_in_hi32++;
+      }
+
+   } else {
+
+      /*-- general, uncommon case --*/
+      while (True) {
+	 /*-- block full? --*/
+	 if (s->nblock >= s->nblockMAX) break;
+	 /*-- no input? --*/
+	 if (s->strm->avail_in == 0) break;
+	 /*-- flush/finish end? --*/
+	 if (s->avail_in_expect == 0) break;
+	 progress_in = True;
+	 ADD_CHAR_TO_BLOCK ( s, (UInt32)(*((UChar*)(s->strm->next_in))) );
+	 s->strm->next_in++;
+	 s->strm->avail_in--;
+	 s->strm->total_in_lo32++;
+	 if (s->strm->total_in_lo32 == 0) s->strm->total_in_hi32++;
+	 s->avail_in_expect--;
+      }
+   }
+   return progress_in;
+}
+
+
+/*---------------------------------------------------*/
+static
+Bool copy_output_until_stop ( EState* s )
+{
+   Bool progress_out = False;
+
+   while (True) {
+
+      /*-- no output space? --*/
+      if (s->strm->avail_out == 0) break;
+
+      /*-- block done? --*/
+      if (s->state_out_pos >= s->numZ) break;
+
+      progress_out = True;
+      *(s->strm->next_out) = s->zbits[s->state_out_pos];
+      s->state_out_pos++;
+      s->strm->avail_out--;
+      s->strm->next_out++;
+      s->strm->total_out_lo32++;
+      if (s->strm->total_out_lo32 == 0) s->strm->total_out_hi32++;
+   }
+
+   return progress_out;
+}
+
+
+/*---------------------------------------------------*/
+static
+Bool handle_compress ( bz_stream* strm )
+{
+   Bool progress_in  = False;
+   Bool progress_out = False;
+   EState* s = strm->state;
+
+   while (True) {
+
+      if (s->state == BZ_S_OUTPUT) {
+	 progress_out |= copy_output_until_stop ( s );
+	 if (s->state_out_pos < s->numZ) break;
+	 if (s->mode == BZ_M_FINISHING &&
+	     s->avail_in_expect == 0 &&
+	     isempty_RL(s)) break;
+	 prepare_new_block ( s );
+	 s->state = BZ_S_INPUT;
+	 if (s->mode == BZ_M_FLUSHING &&
+	     s->avail_in_expect == 0 &&
+	     isempty_RL(s)) break;
+      }
+
+      if (s->state == BZ_S_INPUT) {
+	 progress_in |= copy_input_until_stop ( s );
+	 if (s->mode != BZ_M_RUNNING && s->avail_in_expect == 0) {
+	    flush_RL ( s );
+	    BZ2_compressBlock ( s, (Bool)(s->mode == BZ_M_FINISHING) );
+	    s->state = BZ_S_OUTPUT;
+	 }
+	 else
+	 if (s->nblock >= s->nblockMAX) {
+	    BZ2_compressBlock ( s, False );
+	    s->state = BZ_S_OUTPUT;
+	 }
+	 else
+	 if (s->strm->avail_in == 0) {
+	    break;
+	 }
+      }
+
+   }
+
+   return progress_in || progress_out;
+}
+
+
+/*---------------------------------------------------*/
+int BZ_API(BZ2_bzCompress) ( bz_stream *strm, int action )
+{
+   Bool progress;
+   EState* s;
+   if (strm == NULL) return BZ_PARAM_ERROR;
+   s = strm->state;
+   if (s == NULL) return BZ_PARAM_ERROR;
+   if (s->strm != strm) return BZ_PARAM_ERROR;
+
+   preswitch:
+   switch (s->mode) {
+
+      case BZ_M_IDLE:
+	 return BZ_SEQUENCE_ERROR;
+
+      case BZ_M_RUNNING:
+	 if (action == BZ_RUN) {
+	    progress = handle_compress ( strm );
+	    return progress ? BZ_RUN_OK : BZ_PARAM_ERROR;
+	 }
+	 else
+	 if (action == BZ_FLUSH) {
+	    s->avail_in_expect = strm->avail_in;
+	    s->mode = BZ_M_FLUSHING;
+	    goto preswitch;
+	 }
+	 else
+	 if (action == BZ_FINISH) {
+	    s->avail_in_expect = strm->avail_in;
+	    s->mode = BZ_M_FINISHING;
+	    goto preswitch;
+	 }
+	 else
+	    return BZ_PARAM_ERROR;
+
+      case BZ_M_FLUSHING:
+	 if (action != BZ_FLUSH) return BZ_SEQUENCE_ERROR;
+	 if (s->avail_in_expect != s->strm->avail_in)
+	    return BZ_SEQUENCE_ERROR;
+	 progress = handle_compress ( strm );
+	 if (s->avail_in_expect > 0 || !isempty_RL(s) ||
+	     s->state_out_pos < s->numZ) return BZ_FLUSH_OK;
+	 s->mode = BZ_M_RUNNING;
+	 return BZ_RUN_OK;
+
+      case BZ_M_FINISHING:
+	 if (action != BZ_FINISH) return BZ_SEQUENCE_ERROR;
+	 if (s->avail_in_expect != s->strm->avail_in)
+	    return BZ_SEQUENCE_ERROR;
+	 progress = handle_compress ( strm );
+	 if (!progress) return BZ_SEQUENCE_ERROR;
+	 if (s->avail_in_expect > 0 || !isempty_RL(s) ||
+	     s->state_out_pos < s->numZ) return BZ_FINISH_OK;
+	 s->mode = BZ_M_IDLE;
+	 return BZ_STREAM_END;
+   }
+   return BZ_OK; /*--not reached--*/
+}
+
+
+/*---------------------------------------------------*/
+int BZ_API(BZ2_bzCompressEnd)  ( bz_stream *strm )
+{
+   EState* s;
+   if (strm == NULL) return BZ_PARAM_ERROR;
+   s = strm->state;
+   if (s == NULL) return BZ_PARAM_ERROR;
+   if (s->strm != strm) return BZ_PARAM_ERROR;
+
+   if (s->arr1 != NULL) BZFREE(s->arr1);
+   if (s->arr2 != NULL) BZFREE(s->arr2);
+   if (s->ftab != NULL) BZFREE(s->ftab);
+   BZFREE(strm->state);
+
+   strm->state = NULL;
+
+   return BZ_OK;
+}
+#endif /* BZ_NO_COMPRESS */
+
+/*---------------------------------------------------*/
+/*--- Decompression stuff                         ---*/
+/*---------------------------------------------------*/
+
+/*---------------------------------------------------*/
+int BZ_API(BZ2_bzDecompressInit)
+		     ( bz_stream* strm,
+		       int        verbosity,
+		       int        small )
+{
+   DState* s;
+
+   if (!bz_config_ok()) return BZ_CONFIG_ERROR;
+
+   if (strm == NULL) return BZ_PARAM_ERROR;
+   if (small != 0 && small != 1) return BZ_PARAM_ERROR;
+   if (verbosity < 0 || verbosity > 4) return BZ_PARAM_ERROR;
+
+   if (strm->bzalloc == NULL) strm->bzalloc = default_bzalloc;
+   if (strm->bzfree == NULL) strm->bzfree = default_bzfree;
+
+   s = BZALLOC( sizeof(DState) );
+   if (s == NULL) return BZ_MEM_ERROR;
+   s->strm                  = strm;
+   strm->state              = s;
+   s->state                 = BZ_X_MAGIC_1;
+   s->bsLive                = 0;
+   s->bsBuff                = 0;
+   s->calculatedCombinedCRC = 0;
+   strm->total_in_lo32      = 0;
+   strm->total_in_hi32      = 0;
+   strm->total_out_lo32     = 0;
+   strm->total_out_hi32     = 0;
+   s->smallDecompress       = (Bool)small;
+   s->ll4                   = NULL;
+   s->ll16                  = NULL;
+   s->tt                    = NULL;
+   s->currBlockNo           = 0;
+   s->verbosity             = verbosity;
+
+   return BZ_OK;
+}
+
+
+/*---------------------------------------------------*/
+static
+void unRLE_obuf_to_output_FAST ( DState* s )
+{
+   UChar k1;
+
+   if (s->blockRandomised) {
+
+      while (True) {
+	 /* try to finish existing run */
+	 while (True) {
+	    if (s->strm->avail_out == 0) return;
+	    if (s->state_out_len == 0) break;
+	    *( (UChar*)(s->strm->next_out) ) = s->state_out_ch;
+	    BZ_UPDATE_CRC ( s->calculatedBlockCRC, s->state_out_ch );
+	    s->state_out_len--;
+	    s->strm->next_out++;
+	    s->strm->avail_out--;
+	    s->strm->total_out_lo32++;
+	    if (s->strm->total_out_lo32 == 0) s->strm->total_out_hi32++;
+	 }
+
+	 /* 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;
+	 BZ_GET_FAST(k1); BZ_RAND_UPD_MASK;
+	 k1 ^= BZ_RAND_MASK; 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;
+	 BZ_GET_FAST(k1); BZ_RAND_UPD_MASK;
+	 k1 ^= BZ_RAND_MASK; 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;
+	 BZ_GET_FAST(k1); BZ_RAND_UPD_MASK;
+	 k1 ^= BZ_RAND_MASK; s->nblock_used++;
+	 if (s->nblock_used == s->save_nblock+1) continue;
+	 if (k1 != s->k0) { s->k0 = k1; continue; };
+
+	 BZ_GET_FAST(k1); BZ_RAND_UPD_MASK;
+	 k1 ^= BZ_RAND_MASK; s->nblock_used++;
+	 s->state_out_len = ((Int32)k1) + 4;
+	 BZ_GET_FAST(s->k0); BZ_RAND_UPD_MASK;
+	 s->k0 ^= BZ_RAND_MASK; s->nblock_used++;
+      }
+
+   } else {
+
+      /* restore */
+      UInt32        c_calculatedBlockCRC = s->calculatedBlockCRC;
+      UChar         c_state_out_ch       = s->state_out_ch;
+      Int32         c_state_out_len      = s->state_out_len;
+      Int32         c_nblock_used        = s->nblock_used;
+      Int32         c_k0                 = s->k0;
+      UInt32*       c_tt                 = s->tt;
+      UInt32        c_tPos               = s->tPos;
+      char*         cs_next_out          = s->strm->next_out;
+      unsigned int  cs_avail_out         = s->strm->avail_out;
+      /* end restore */
+
+      UInt32       avail_out_INIT = cs_avail_out;
+      Int32        s_save_nblockPP = s->save_nblock+1;
+      unsigned int total_out_lo32_old;
+
+      while (True) {
+
+	 /* 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;
+	       *( (UChar*)(cs_next_out) ) = c_state_out_ch;
+	       BZ_UPDATE_CRC ( c_calculatedBlockCRC, 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;
+	       };
+	       *( (UChar*)(cs_next_out) ) = c_state_out_ch;
+	       BZ_UPDATE_CRC ( c_calculatedBlockCRC, 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;
+	 BZ_GET_FAST_C(k1); 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;
+	 BZ_GET_FAST_C(k1); c_nblock_used++;
+	 if (c_nblock_used == s_save_nblockPP) continue;
+	 if (k1 != c_k0) { c_k0 = k1; continue; };
+
+	 c_state_out_len = 3;
+	 BZ_GET_FAST_C(k1); c_nblock_used++;
+	 if (c_nblock_used == s_save_nblockPP) continue;
+	 if (k1 != c_k0) { c_k0 = k1; continue; };
+
+	 BZ_GET_FAST_C(k1); c_nblock_used++;
+	 c_state_out_len = ((Int32)k1) + 4;
+	 BZ_GET_FAST_C(c_k0); c_nblock_used++;
+      }
+
+      return_notr:
+      total_out_lo32_old = s->strm->total_out_lo32;
+      s->strm->total_out_lo32 += (avail_out_INIT - cs_avail_out);
+      if (s->strm->total_out_lo32 < total_out_lo32_old)
+	 s->strm->total_out_hi32++;
+
+      /* 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 */
+   }
+}
+
+
+/*---------------------------------------------------*/
+__inline__ Int32 BZ2_indexIntoF ( Int32 indx, Int32 *cftab )
+{
+   Int32 nb, na, mid;
+   nb = 0;
+   na = 256;
+   do {
+      mid = (nb + na) >> 1;
+      if (indx >= cftab[mid]) nb = mid; else na = mid;
+   }
+   while (na - nb != 1);
+   return nb;
+}
+
+
+/*---------------------------------------------------*/
+static
+void unRLE_obuf_to_output_SMALL ( DState* s )
+{
+   UChar k1;
+
+   if (s->blockRandomised) {
+
+      while (True) {
+	 /* try to finish existing run */
+	 while (True) {
+	    if (s->strm->avail_out == 0) return;
+	    if (s->state_out_len == 0) break;
+	    *( (UChar*)(s->strm->next_out) ) = s->state_out_ch;
+	    BZ_UPDATE_CRC ( s->calculatedBlockCRC, s->state_out_ch );
+	    s->state_out_len--;
+	    s->strm->next_out++;
+	    s->strm->avail_out--;
+	    s->strm->total_out_lo32++;
+	    if (s->strm->total_out_lo32 == 0) s->strm->total_out_hi32++;
+	 }
+
+	 /* 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;
+	 BZ_GET_SMALL(k1); BZ_RAND_UPD_MASK;
+	 k1 ^= BZ_RAND_MASK; 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;
+	 BZ_GET_SMALL(k1); BZ_RAND_UPD_MASK;
+	 k1 ^= BZ_RAND_MASK; 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;
+	 BZ_GET_SMALL(k1); BZ_RAND_UPD_MASK;
+	 k1 ^= BZ_RAND_MASK; s->nblock_used++;
+	 if (s->nblock_used == s->save_nblock+1) continue;
+	 if (k1 != s->k0) { s->k0 = k1; continue; };
+
+	 BZ_GET_SMALL(k1); BZ_RAND_UPD_MASK;
+	 k1 ^= BZ_RAND_MASK; s->nblock_used++;
+	 s->state_out_len = ((Int32)k1) + 4;
+	 BZ_GET_SMALL(s->k0); BZ_RAND_UPD_MASK;
+	 s->k0 ^= BZ_RAND_MASK; s->nblock_used++;
+      }
+
+   } else {
+
+      while (True) {
+	 /* try to finish existing run */
+	 while (True) {
+	    if (s->strm->avail_out == 0) return;
+	    if (s->state_out_len == 0) break;
+	    *( (UChar*)(s->strm->next_out) ) = s->state_out_ch;
+	    BZ_UPDATE_CRC ( s->calculatedBlockCRC, s->state_out_ch );
+	    s->state_out_len--;
+	    s->strm->next_out++;
+	    s->strm->avail_out--;
+	    s->strm->total_out_lo32++;
+	    if (s->strm->total_out_lo32 == 0) s->strm->total_out_hi32++;
+	 }
+
+	 /* 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;
+	 BZ_GET_SMALL(k1); 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;
+	 BZ_GET_SMALL(k1); 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;
+	 BZ_GET_SMALL(k1); s->nblock_used++;
+	 if (s->nblock_used == s->save_nblock+1) continue;
+	 if (k1 != s->k0) { s->k0 = k1; continue; };
+
+	 BZ_GET_SMALL(k1); s->nblock_used++;
+	 s->state_out_len = ((Int32)k1) + 4;
+	 BZ_GET_SMALL(s->k0); s->nblock_used++;
+      }
+
+   }
+}
+
+
+/*---------------------------------------------------*/
+int BZ_API(BZ2_bzDecompress) ( bz_stream *strm )
+{
+   DState* s;
+   if (strm == NULL) return BZ_PARAM_ERROR;
+   s = strm->state;
+   if (s == NULL) return BZ_PARAM_ERROR;
+   if (s->strm != strm) return BZ_PARAM_ERROR;
+
+   while (True) {
+#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
+	WATCHDOG_RESET();
+#endif
+      if (s->state == BZ_X_IDLE) return BZ_SEQUENCE_ERROR;
+      if (s->state == BZ_X_OUTPUT) {
+	 if (s->smallDecompress)
+	    unRLE_obuf_to_output_SMALL ( s ); else
+	    unRLE_obuf_to_output_FAST  ( s );
+	 if (s->nblock_used == s->save_nblock+1 && s->state_out_len == 0) {
+	    BZ_FINALISE_CRC ( s->calculatedBlockCRC );
+	    if (s->verbosity >= 3)
+	       VPrintf2 ( " {0x%x, 0x%x}", s->storedBlockCRC,
+			  s->calculatedBlockCRC );
+	    if (s->verbosity >= 2) VPrintf0 ( "]" );
+	    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) {
+	 Int32 r = BZ2_decompress ( s );
+	 if (r == BZ_STREAM_END) {
+	    if (s->verbosity >= 3)
+	       VPrintf2 ( "\n    combined CRCs: stored = 0x%x, computed = 0x%x",
+			  s->storedCombinedCRC, s->calculatedCombinedCRC );
+	    if (s->calculatedCombinedCRC != s->storedCombinedCRC)
+	       return BZ_DATA_ERROR;
+	    return r;
+	 }
+	 if (s->state != BZ_X_OUTPUT) return r;
+      }
+   }
+
+   AssertH ( 0, 6001 );
+
+   return 0;  /*NOTREACHED*/
+}
+
+
+/*---------------------------------------------------*/
+int BZ_API(BZ2_bzDecompressEnd)  ( bz_stream *strm )
+{
+   DState* s;
+   if (strm == NULL) return BZ_PARAM_ERROR;
+   s = strm->state;
+   if (s == NULL) return BZ_PARAM_ERROR;
+   if (s->strm != strm) return BZ_PARAM_ERROR;
+
+   if (s->tt   != NULL) BZFREE(s->tt);
+   if (s->ll16 != NULL) BZFREE(s->ll16);
+   if (s->ll4  != NULL) BZFREE(s->ll4);
+
+   BZFREE(strm->state);
+   strm->state = NULL;
+
+   return BZ_OK;
+}
+
+
+#ifndef BZ_NO_STDIO
+/*---------------------------------------------------*/
+/*--- File I/O stuff                              ---*/
+/*---------------------------------------------------*/
+
+#define BZ_SETERR(eee)                    \
+{                                         \
+   if (bzerror != NULL) *bzerror = eee;   \
+   if (bzf != NULL) bzf->lastErr = eee;   \
+}
+
+typedef
+   struct {
+      FILE*     handle;
+      Char      buf[BZ_MAX_UNUSED];
+      Int32     bufN;
+      Bool      writing;
+      bz_stream strm;
+      Int32     lastErr;
+      Bool      initialisedOk;
+   }
+   bzFile;
+
+
+/*---------------------------------------------*/
+static Bool myfeof ( FILE* f )
+{
+   Int32 c = fgetc ( f );
+   if (c == EOF) return True;
+   ungetc ( c, f );
+   return False;
+}
+
+
+/*---------------------------------------------------*/
+BZFILE* BZ_API(BZ2_bzWriteOpen)
+		    ( int*  bzerror,
+		      FILE* f,
+		      int   blockSize100k,
+		      int   verbosity,
+		      int   workFactor )
+{
+   Int32   ret;
+   bzFile* bzf = NULL;
+
+   BZ_SETERR(BZ_OK);
+
+   if (f == NULL ||
+       (blockSize100k < 1 || blockSize100k > 9) ||
+       (workFactor < 0 || workFactor > 250) ||
+       (verbosity < 0 || verbosity > 4))
+      { BZ_SETERR(BZ_PARAM_ERROR); return NULL; };
+
+   if (ferror(f))
+      { BZ_SETERR(BZ_IO_ERROR); return NULL; };
+
+   bzf = malloc ( sizeof(bzFile) );
+   if (bzf == NULL)
+      { BZ_SETERR(BZ_MEM_ERROR); return NULL; };
+
+   BZ_SETERR(BZ_OK);
+   bzf->initialisedOk = False;
+   bzf->bufN          = 0;
+   bzf->handle        = f;
+   bzf->writing       = True;
+   bzf->strm.bzalloc  = NULL;
+   bzf->strm.bzfree   = NULL;
+   bzf->strm.opaque   = NULL;
+
+   if (workFactor == 0) workFactor = 30;
+   ret = BZ2_bzCompressInit ( &(bzf->strm), blockSize100k,
+			      verbosity, workFactor );
+   if (ret != BZ_OK)
+      { BZ_SETERR(ret); free(bzf); return NULL; };
+
+   bzf->strm.avail_in = 0;
+   bzf->initialisedOk = True;
+   return bzf;
+}
+
+
+/*---------------------------------------------------*/
+void BZ_API(BZ2_bzWrite)
+	     ( int*    bzerror,
+	       BZFILE* b,
+	       void*   buf,
+	       int     len )
+{
+   Int32 n, n2, ret;
+   bzFile* bzf = (bzFile*)b;
+
+   BZ_SETERR(BZ_OK);
+   if (bzf == NULL || buf == NULL || len < 0)
+      { BZ_SETERR(BZ_PARAM_ERROR); return; };
+   if (!(bzf->writing))
+      { BZ_SETERR(BZ_SEQUENCE_ERROR); return; };
+   if (ferror(bzf->handle))
+      { BZ_SETERR(BZ_IO_ERROR); return; };
+
+   if (len == 0)
+      { BZ_SETERR(BZ_OK); return; };
+
+   bzf->strm.avail_in = len;
+   bzf->strm.next_in  = buf;
+
+   while (True) {
+      bzf->strm.avail_out = BZ_MAX_UNUSED;
+      bzf->strm.next_out = bzf->buf;
+      ret = BZ2_bzCompress ( &(bzf->strm), BZ_RUN );
+      if (ret != BZ_RUN_OK)
+	 { BZ_SETERR(ret); return; };
+
+      if (bzf->strm.avail_out < BZ_MAX_UNUSED) {
+	 n = BZ_MAX_UNUSED - bzf->strm.avail_out;
+	 n2 = fwrite ( (void*)(bzf->buf), sizeof(UChar),
+		       n, bzf->handle );
+	 if (n != n2 || ferror(bzf->handle))
+	    { BZ_SETERR(BZ_IO_ERROR); return; };
+      }
+
+      if (bzf->strm.avail_in == 0)
+	 { BZ_SETERR(BZ_OK); return; };
+   }
+}
+
+
+/*---------------------------------------------------*/
+void BZ_API(BZ2_bzWriteClose)
+		  ( int*          bzerror,
+		    BZFILE*       b,
+		    int           abandon,
+		    unsigned int* nbytes_in,
+		    unsigned int* nbytes_out )
+{
+   BZ2_bzWriteClose64 ( bzerror, b, abandon,
+			nbytes_in, NULL, nbytes_out, NULL );
+}
+
+
+void BZ_API(BZ2_bzWriteClose64)
+		  ( int*          bzerror,
+		    BZFILE*       b,
+		    int           abandon,
+		    unsigned int* nbytes_in_lo32,
+		    unsigned int* nbytes_in_hi32,
+		    unsigned int* nbytes_out_lo32,
+		    unsigned int* nbytes_out_hi32 )
+{
+   Int32   n, n2, ret;
+   bzFile* bzf = (bzFile*)b;
+
+   if (bzf == NULL)
+      { BZ_SETERR(BZ_OK); return; };
+   if (!(bzf->writing))
+      { BZ_SETERR(BZ_SEQUENCE_ERROR); return; };
+   if (ferror(bzf->handle))
+      { BZ_SETERR(BZ_IO_ERROR); return; };
+
+   if (nbytes_in_lo32 != NULL) *nbytes_in_lo32 = 0;
+   if (nbytes_in_hi32 != NULL) *nbytes_in_hi32 = 0;
+   if (nbytes_out_lo32 != NULL) *nbytes_out_lo32 = 0;
+   if (nbytes_out_hi32 != NULL) *nbytes_out_hi32 = 0;
+
+   if ((!abandon) && bzf->lastErr == BZ_OK) {
+      while (True) {
+	 bzf->strm.avail_out = BZ_MAX_UNUSED;
+	 bzf->strm.next_out = bzf->buf;
+	 ret = BZ2_bzCompress ( &(bzf->strm), BZ_FINISH );
+	 if (ret != BZ_FINISH_OK && ret != BZ_STREAM_END)
+	    { BZ_SETERR(ret); return; };
+
+	 if (bzf->strm.avail_out < BZ_MAX_UNUSED) {
+	    n = BZ_MAX_UNUSED - bzf->strm.avail_out;
+	    n2 = fwrite ( (void*)(bzf->buf), sizeof(UChar),
+			  n, bzf->handle );
+	    if (n != n2 || ferror(bzf->handle))
+	       { BZ_SETERR(BZ_IO_ERROR); return; };
+	 }
+
+	 if (ret == BZ_STREAM_END) break;
+      }
+   }
+
+   if ( !abandon && !ferror ( bzf->handle ) ) {
+      fflush ( bzf->handle );
+      if (ferror(bzf->handle))
+	 { BZ_SETERR(BZ_IO_ERROR); return; };
+   }
+
+   if (nbytes_in_lo32 != NULL)
+      *nbytes_in_lo32 = bzf->strm.total_in_lo32;
+   if (nbytes_in_hi32 != NULL)
+      *nbytes_in_hi32 = bzf->strm.total_in_hi32;
+   if (nbytes_out_lo32 != NULL)
+      *nbytes_out_lo32 = bzf->strm.total_out_lo32;
+   if (nbytes_out_hi32 != NULL)
+      *nbytes_out_hi32 = bzf->strm.total_out_hi32;
+
+   BZ_SETERR(BZ_OK);
+   BZ2_bzCompressEnd ( &(bzf->strm) );
+   free ( bzf );
+}
+
+
+/*---------------------------------------------------*/
+BZFILE* BZ_API(BZ2_bzReadOpen)
+		   ( int*  bzerror,
+		     FILE* f,
+		     int   verbosity,
+		     int   small,
+		     void* unused,
+		     int   nUnused )
+{
+   bzFile* bzf = NULL;
+   int     ret;
+
+   BZ_SETERR(BZ_OK);
+
+   if (f == NULL ||
+       (small != 0 && small != 1) ||
+       (verbosity < 0 || verbosity > 4) ||
+       (unused == NULL && nUnused != 0) ||
+       (unused != NULL && (nUnused < 0 || nUnused > BZ_MAX_UNUSED)))
+      { BZ_SETERR(BZ_PARAM_ERROR); return NULL; };
+
+   if (ferror(f))
+      { BZ_SETERR(BZ_IO_ERROR); return NULL; };
+
+   bzf = malloc ( sizeof(bzFile) );
+   if (bzf == NULL)
+      { BZ_SETERR(BZ_MEM_ERROR); return NULL; };
+
+   BZ_SETERR(BZ_OK);
+
+   bzf->initialisedOk = False;
+   bzf->handle        = f;
+   bzf->bufN          = 0;
+   bzf->writing       = False;
+   bzf->strm.bzalloc  = NULL;
+   bzf->strm.bzfree   = NULL;
+   bzf->strm.opaque   = NULL;
+
+   while (nUnused > 0) {
+      bzf->buf[bzf->bufN] = *((UChar*)(unused)); bzf->bufN++;
+      unused = ((void*)( 1 + ((UChar*)(unused))  ));
+      nUnused--;
+   }
+
+   ret = BZ2_bzDecompressInit ( &(bzf->strm), verbosity, small );
+   if (ret != BZ_OK)
+      { BZ_SETERR(ret); free(bzf); return NULL; };
+
+   bzf->strm.avail_in = bzf->bufN;
+   bzf->strm.next_in  = bzf->buf;
+
+   bzf->initialisedOk = True;
+   return bzf;
+}
+
+
+/*---------------------------------------------------*/
+void BZ_API(BZ2_bzReadClose) ( int *bzerror, BZFILE *b )
+{
+   bzFile* bzf = (bzFile*)b;
+
+   BZ_SETERR(BZ_OK);
+   if (bzf == NULL)
+      { BZ_SETERR(BZ_OK); return; };
+
+   if (bzf->writing)
+      { BZ_SETERR(BZ_SEQUENCE_ERROR); return; };
+
+   if (bzf->initialisedOk)
+      (void)BZ2_bzDecompressEnd ( &(bzf->strm) );
+   free ( bzf );
+}
+
+
+/*---------------------------------------------------*/
+int BZ_API(BZ2_bzRead)
+	   ( int*    bzerror,
+	     BZFILE* b,
+	     void*   buf,
+	     int     len )
+{
+   Int32   n, ret;
+   bzFile* bzf = (bzFile*)b;
+
+   BZ_SETERR(BZ_OK);
+
+   if (bzf == NULL || buf == NULL || len < 0)
+      { BZ_SETERR(BZ_PARAM_ERROR); return 0; };
+
+   if (bzf->writing)
+      { BZ_SETERR(BZ_SEQUENCE_ERROR); return 0; };
+
+   if (len == 0)
+      { BZ_SETERR(BZ_OK); return 0; };
+
+   bzf->strm.avail_out = len;
+   bzf->strm.next_out = buf;
+
+   while (True) {
+
+      if (ferror(bzf->handle))
+	 { BZ_SETERR(BZ_IO_ERROR); return 0; };
+
+      if (bzf->strm.avail_in == 0 && !myfeof(bzf->handle)) {
+	 n = fread ( bzf->buf, sizeof(UChar),
+		     BZ_MAX_UNUSED, bzf->handle );
+	 if (ferror(bzf->handle))
+	    { BZ_SETERR(BZ_IO_ERROR); 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); return 0; };
+
+      if (ret == BZ_OK && myfeof(bzf->handle) &&
+	  bzf->strm.avail_in == 0 && bzf->strm.avail_out > 0)
+	 { BZ_SETERR(BZ_UNEXPECTED_EOF); return 0; };
+
+      if (ret == BZ_STREAM_END)
+	 { BZ_SETERR(BZ_STREAM_END);
+	   return len - bzf->strm.avail_out; };
+      if (bzf->strm.avail_out == 0)
+	 { BZ_SETERR(BZ_OK); return len; };
+
+   }
+
+   return 0; /*not reached*/
+}
+
+
+/*---------------------------------------------------*/
+void BZ_API(BZ2_bzReadGetUnused)
+		     ( int*    bzerror,
+		       BZFILE* b,
+		       void**  unused,
+		       int*    nUnused )
+{
+   bzFile* bzf = (bzFile*)b;
+   if (bzf == NULL)
+      { BZ_SETERR(BZ_PARAM_ERROR); return; };
+   if (bzf->lastErr != BZ_STREAM_END)
+      { BZ_SETERR(BZ_SEQUENCE_ERROR); return; };
+   if (unused == NULL || nUnused == NULL)
+      { BZ_SETERR(BZ_PARAM_ERROR); return; };
+
+   BZ_SETERR(BZ_OK);
+   *nUnused = bzf->strm.avail_in;
+   *unused = bzf->strm.next_in;
+}
+#endif
+
+
+/*---------------------------------------------------*/
+/*--- Misc convenience stuff                      ---*/
+/*---------------------------------------------------*/
+#ifndef BZ_NO_COMPRESS
+/*---------------------------------------------------*/
+int BZ_API(BZ2_bzBuffToBuffCompress)
+			 ( char*         dest,
+			   unsigned int* destLen,
+			   char*         source,
+			   unsigned int  sourceLen,
+			   int           blockSize100k,
+			   int           verbosity,
+			   int           workFactor )
+{
+   bz_stream strm;
+   int ret;
+
+   if (dest == NULL || destLen == NULL ||
+       source == NULL ||
+       blockSize100k < 1 || blockSize100k > 9 ||
+       verbosity < 0 || verbosity > 4 ||
+       workFactor < 0 || workFactor > 250)
+      return BZ_PARAM_ERROR;
+
+   if (workFactor == 0) workFactor = 30;
+   strm.bzalloc = NULL;
+   strm.bzfree = NULL;
+   strm.opaque = NULL;
+   ret = BZ2_bzCompressInit ( &strm, blockSize100k,
+			      verbosity, workFactor );
+   if (ret != BZ_OK) return ret;
+
+   strm.next_in = source;
+   strm.next_out = dest;
+   strm.avail_in = sourceLen;
+   strm.avail_out = *destLen;
+
+   ret = BZ2_bzCompress ( &strm, BZ_FINISH );
+   if (ret == BZ_FINISH_OK) goto output_overflow;
+   if (ret != BZ_STREAM_END) goto errhandler;
+
+   /* normal termination */
+   *destLen -= strm.avail_out;
+   BZ2_bzCompressEnd ( &strm );
+   return BZ_OK;
+
+   output_overflow:
+   BZ2_bzCompressEnd ( &strm );
+   return BZ_OUTBUFF_FULL;
+
+   errhandler:
+   BZ2_bzCompressEnd ( &strm );
+   return ret;
+}
+#endif /* BZ_NO_COMPRESS */
+
+/*---------------------------------------------------*/
+int BZ_API(BZ2_bzBuffToBuffDecompress)
+			   ( char*         dest,
+			     unsigned int* destLen,
+			     char*         source,
+			     unsigned int  sourceLen,
+			     int           small,
+			     int           verbosity )
+{
+   bz_stream strm;
+   int ret;
+
+   if (destLen == NULL || source == NULL)
+	  return BZ_PARAM_ERROR;
+
+   strm.bzalloc = NULL;
+   strm.bzfree = NULL;
+   strm.opaque = NULL;
+   ret = BZ2_bzDecompressInit ( &strm, verbosity, small );
+   if (ret != BZ_OK) return ret;
+
+   strm.next_in = source;
+   strm.next_out = dest;
+   strm.avail_in = sourceLen;
+   strm.avail_out = *destLen;
+
+   ret = BZ2_bzDecompress ( &strm );
+   if (ret == BZ_OK) goto output_overflow_or_eof;
+   if (ret != BZ_STREAM_END) goto errhandler;
+
+   /* normal termination */
+   *destLen -= strm.avail_out;
+   BZ2_bzDecompressEnd ( &strm );
+   return BZ_OK;
+
+   output_overflow_or_eof:
+   if (strm.avail_out > 0) {
+      BZ2_bzDecompressEnd ( &strm );
+      return BZ_UNEXPECTED_EOF;
+   } else {
+      BZ2_bzDecompressEnd ( &strm );
+      return BZ_OUTBUFF_FULL;
+   };
+
+   errhandler:
+   BZ2_bzDecompressEnd ( &strm );
+   return ret;
+}
+
+
+/*---------------------------------------------------*/
+/*--
+   Code contributed by Yoshioka Tsuneo
+   (QWF00133@niftyserve.or.jp/tsuneo-y@is.aist-nara.ac.jp),
+   to support better zlib compatibility.
+   This code is not _officially_ part of libbzip2 (yet);
+   I haven't tested it, documented it, or considered the
+   threading-safeness of it.
+   If this code breaks, please contact both Yoshioka and me.
+--*/
+/*---------------------------------------------------*/
+
+/*---------------------------------------------------*/
+/*--
+   return version like "0.9.0c".
+--*/
+const char * BZ_API(BZ2_bzlibVersion)(void)
+{
+   return BZ_VERSION;
+}
+
+
+#ifndef BZ_NO_STDIO
+/*---------------------------------------------------*/
+
+#if defined(_WIN32) || defined(OS2) || defined(MSDOS)
+#   include <fcntl.h>
+#   include <io.h>
+#   define SET_BINARY_MODE(file) setmode(fileno(file),O_BINARY)
+#else
+#   define SET_BINARY_MODE(file)
+#endif
+static
+BZFILE * bzopen_or_bzdopen
+	       ( const char *path,   /* no use when bzdopen */
+		 int fd,             /* no use when bzdopen */
+		 const char *mode,
+		 int open_mode)      /* bzopen: 0, bzdopen:1 */
+{
+   int    bzerr;
+   char   unused[BZ_MAX_UNUSED];
+   int    blockSize100k = 9;
+   int    writing       = 0;
+   char   mode2[10]     = "";
+   FILE   *fp           = NULL;
+   BZFILE *bzfp         = NULL;
+   int    verbosity     = 0;
+   int    workFactor    = 30;
+   int    smallMode     = 0;
+   int    nUnused       = 0;
+
+   if (mode == NULL) return NULL;
+   while (*mode) {
+      switch (*mode) {
+      case 'r':
+	 writing = 0; break;
+      case 'w':
+	 writing = 1; break;
+      case 's':
+	 smallMode = 1; break;
+      default:
+	 if (isdigit((int)(*mode))) {
+	    blockSize100k = *mode-BZ_HDR_0;
+	 }
+      }
+      mode++;
+   }
+   strcat(mode2, writing ? "w" : "r" );
+   strcat(mode2,"b");   /* binary mode */
+
+   if (open_mode==0) {
+      if (path==NULL || strcmp(path,"")==0) {
+	fp = (writing ? stdout : stdin);
+	SET_BINARY_MODE(fp);
+      } else {
+	fp = fopen(path,mode2);
+      }
+   } else {
+#ifdef BZ_STRICT_ANSI
+      fp = NULL;
+#else
+      fp = fdopen(fd,mode2);
+#endif
+   }
+   if (fp == NULL) return NULL;
+
+   if (writing) {
+      /* Guard against total chaos and anarchy -- JRS */
+      if (blockSize100k < 1) blockSize100k = 1;
+      if (blockSize100k > 9) blockSize100k = 9;
+      bzfp = BZ2_bzWriteOpen(&bzerr,fp,blockSize100k,
+			     verbosity,workFactor);
+   } else {
+      bzfp = BZ2_bzReadOpen(&bzerr,fp,verbosity,smallMode,
+			    unused,nUnused);
+   }
+   if (bzfp == NULL) {
+      if (fp != stdin && fp != stdout) fclose(fp);
+      return NULL;
+   }
+   return bzfp;
+}
+
+
+/*---------------------------------------------------*/
+/*--
+   open file for read or write.
+      ex) bzopen("file","w9")
+      case path="" or NULL => use stdin or stdout.
+--*/
+BZFILE * BZ_API(BZ2_bzopen)
+	       ( const char *path,
+		 const char *mode )
+{
+   return bzopen_or_bzdopen(path,-1,mode,/*bzopen*/0);
+}
+
+
+/*---------------------------------------------------*/
+BZFILE * BZ_API(BZ2_bzdopen)
+	       ( int fd,
+		 const char *mode )
+{
+   return bzopen_or_bzdopen(NULL,fd,mode,/*bzdopen*/1);
+}
+
+
+/*---------------------------------------------------*/
+int BZ_API(BZ2_bzread) (BZFILE* b, void* buf, int len )
+{
+   int bzerr, nread;
+   if (((bzFile*)b)->lastErr == BZ_STREAM_END) return 0;
+   nread = BZ2_bzRead(&bzerr,b,buf,len);
+   if (bzerr == BZ_OK || bzerr == BZ_STREAM_END) {
+      return nread;
+   } else {
+      return -1;
+   }
+}
+
+
+/*---------------------------------------------------*/
+int BZ_API(BZ2_bzwrite) (BZFILE* b, void* buf, int len )
+{
+   int bzerr;
+
+   BZ2_bzWrite(&bzerr,b,buf,len);
+   if(bzerr == BZ_OK){
+      return len;
+   }else{
+      return -1;
+   }
+}
+
+
+/*---------------------------------------------------*/
+int BZ_API(BZ2_bzflush) (BZFILE *b)
+{
+   /* do nothing now... */
+   return 0;
+}
+
+
+/*---------------------------------------------------*/
+void BZ_API(BZ2_bzclose) (BZFILE* b)
+{
+   int bzerr;
+   FILE *fp = ((bzFile *)b)->handle;
+
+   if (b==NULL) {return;}
+   if(((bzFile*)b)->writing){
+      BZ2_bzWriteClose(&bzerr,b,0,NULL,NULL);
+      if(bzerr != BZ_OK){
+	 BZ2_bzWriteClose(NULL,b,1,NULL,NULL);
+      }
+   }else{
+      BZ2_bzReadClose(&bzerr,b);
+   }
+   if(fp!=stdin && fp!=stdout){
+      fclose(fp);
+   }
+}
+
+
+/*---------------------------------------------------*/
+/*--
+   return last error code
+--*/
+static char *bzerrorstrings[] = {
+       "OK"
+      ,"SEQUENCE_ERROR"
+      ,"PARAM_ERROR"
+      ,"MEM_ERROR"
+      ,"DATA_ERROR"
+      ,"DATA_ERROR_MAGIC"
+      ,"IO_ERROR"
+      ,"UNEXPECTED_EOF"
+      ,"OUTBUFF_FULL"
+      ,"CONFIG_ERROR"
+      ,"???"   /* for future */
+      ,"???"   /* for future */
+      ,"???"   /* for future */
+      ,"???"   /* for future */
+      ,"???"   /* for future */
+      ,"???"   /* for future */
+};
+
+
+const char * BZ_API(BZ2_bzerror) (BZFILE *b, int *errnum)
+{
+   int err = ((bzFile *)b)->lastErr;
+
+   if(err>0) err = 0;
+   *errnum = err;
+   return bzerrorstrings[err*-1];
+}
+#endif
+
+void bz_internal_error(int errcode)
+{
+	printf ("BZIP2 internal error %d\n", errcode);
+}
+
+/*-------------------------------------------------------------*/
+/*--- end                                           bzlib.c ---*/
+/*-------------------------------------------------------------*/
diff --git a/lib/bzip2/bzlib_crctable.c b/lib/bzip2/bzlib_crctable.c
new file mode 100644
index 0000000..325b966
--- /dev/null
+++ b/lib/bzip2/bzlib_crctable.c
@@ -0,0 +1,145 @@
+#include <config.h>
+
+/*-------------------------------------------------------------*/
+/*--- Table for doing CRCs                                  ---*/
+/*---                                            crctable.c ---*/
+/*-------------------------------------------------------------*/
+
+/*--
+  This file is a part of bzip2 and/or libbzip2, a program and
+  library for lossless, block-sorting data compression.
+
+  Copyright (C) 1996-2002 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 "bzlib_private.h"
+
+/*--
+  I think this is an implementation of the AUTODIN-II,
+  Ethernet & FDDI 32-bit CRC standard.  Vaguely derived
+  from code by Rob Warnock, in Section 51 of the
+  comp.compression FAQ.
+--*/
+
+UInt32 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
+};
+
+
+/*-------------------------------------------------------------*/
+/*--- end                                        crctable.c ---*/
+/*-------------------------------------------------------------*/
diff --git a/lib/bzip2/bzlib_decompress.c b/lib/bzip2/bzlib_decompress.c
new file mode 100644
index 0000000..4412b8a
--- /dev/null
+++ b/lib/bzip2/bzlib_decompress.c
@@ -0,0 +1,674 @@
+#include <config.h>
+#include <common.h>
+#include <watchdog.h>
+
+/*-------------------------------------------------------------*/
+/*--- Decompression machinery                               ---*/
+/*---                                          decompress.c ---*/
+/*-------------------------------------------------------------*/
+
+/*--
+  This file is a part of bzip2 and/or libbzip2, a program and
+  library for lossless, block-sorting data compression.
+
+  Copyright (C) 1996-2002 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 "bzlib_private.h"
+
+
+/*---------------------------------------------------*/
+static
+void makeMaps_d ( DState* s )
+{
+   Int32 i;
+   s->nInUse = 0;
+   for (i = 0; i < 256; i++)
+      if (s->inUse[i]) {
+	 s->seqToUnseq[s->nInUse] = i;
+	 s->nInUse++;
+      }
+}
+
+
+/*---------------------------------------------------*/
+#define RETURN(rrr)                               \
+   { retVal = rrr; goto save_state_and_return; };
+
+#define GET_BITS(lll,vvv,nnn)                     \
+   case lll: s->state = lll;                      \
+   while (True) {                                 \
+      if (s->bsLive >= nnn) {                     \
+	 UInt32 v;                                \
+	 v = (s->bsBuff >>                        \
+	     (s->bsLive-nnn)) & ((1 << nnn)-1);   \
+	 s->bsLive -= nnn;                        \
+	 vvv = v;                                 \
+	 break;                                   \
+      }                                           \
+      if (s->strm->avail_in == 0) RETURN(BZ_OK);  \
+      s->bsBuff                                   \
+	 = (s->bsBuff << 8) |                     \
+	   ((UInt32)                              \
+	      (*((UChar*)(s->strm->next_in))));   \
+      s->bsLive += 8;                             \
+      s->strm->next_in++;                         \
+      s->strm->avail_in--;                        \
+      s->strm->total_in_lo32++;                   \
+      if (s->strm->total_in_lo32 == 0)            \
+	 s->strm->total_in_hi32++;                \
+   }
+
+#define GET_UCHAR(lll,uuu)                        \
+   GET_BITS(lll,uuu,8)
+
+#define GET_BIT(lll,uuu)                          \
+   GET_BITS(lll,uuu,1)
+
+/*---------------------------------------------------*/
+#define GET_MTF_VAL(label1,label2,lval)           \
+{                                                 \
+   if (groupPos == 0) {                           \
+      groupNo++;                                  \
+      if (groupNo >= nSelectors)                  \
+	 RETURN(BZ_DATA_ERROR);                   \
+      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;                                  \
+   GET_BITS(label1, zvec, zn);                    \
+   while (1) {                                    \
+      if (zn > 20 /* the longest code */)         \
+	 RETURN(BZ_DATA_ERROR);                   \
+      if (zvec <= gLimit[zn]) break;              \
+      zn++;                                       \
+      GET_BIT(label2, zj);                        \
+      zvec = (zvec << 1) | zj;                    \
+   };                                             \
+   if (zvec - gBase[zn] < 0                       \
+       || zvec - gBase[zn] >= BZ_MAX_ALPHA_SIZE)  \
+      RETURN(BZ_DATA_ERROR);                      \
+   lval = gPerm[zvec - gBase[zn]];                \
+}
+
+
+/*---------------------------------------------------*/
+Int32 BZ2_decompress ( DState* s )
+{
+   UChar      uc;
+   Int32      retVal;
+   Int32      minLen, maxLen;
+   bz_stream* strm = s->strm;
+
+   /* stuff that needs to be saved/restored */
+   Int32  i;
+   Int32  j;
+   Int32  t;
+   Int32  alphaSize;
+   Int32  nGroups;
+   Int32  nSelectors;
+   Int32  EOB;
+   Int32  groupNo;
+   Int32  groupPos;
+   Int32  nextSym;
+   Int32  nblockMAX;
+   Int32  nblock;
+   Int32  es;
+   Int32  N;
+   Int32  curr;
+   Int32  zt;
+   Int32  zn;
+   Int32  zvec;
+   Int32  zj;
+   Int32  gSel;
+   Int32  gMinlen;
+   Int32* gLimit;
+   Int32* gBase;
+   Int32* gPerm;
+
+   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 (s->state) {
+
+      GET_UCHAR(BZ_X_MAGIC_1, uc);
+      if (uc != BZ_HDR_B) RETURN(BZ_DATA_ERROR_MAGIC);
+
+      GET_UCHAR(BZ_X_MAGIC_2, uc);
+      if (uc != BZ_HDR_Z) RETURN(BZ_DATA_ERROR_MAGIC);
+
+      GET_UCHAR(BZ_X_MAGIC_3, uc)
+      if (uc != BZ_HDR_h) RETURN(BZ_DATA_ERROR_MAGIC);
+
+      GET_BITS(BZ_X_MAGIC_4, s->blockSize100k, 8)
+      if (s->blockSize100k < (BZ_HDR_0 + 1) ||
+	  s->blockSize100k > (BZ_HDR_0 + 9)) RETURN(BZ_DATA_ERROR_MAGIC);
+      s->blockSize100k -= BZ_HDR_0;
+
+      if (s->smallDecompress) {
+	 s->ll16 = BZALLOC( s->blockSize100k * 100000 * sizeof(UInt16) );
+	 s->ll4  = BZALLOC(
+		      ((1 + s->blockSize100k * 100000) >> 1) * sizeof(UChar)
+		   );
+	 if (s->ll16 == NULL || s->ll4 == NULL) RETURN(BZ_MEM_ERROR);
+      } else {
+	 s->tt  = BZALLOC( s->blockSize100k * 100000 * sizeof(Int32) );
+	 if (s->tt == NULL) RETURN(BZ_MEM_ERROR);
+      }
+
+      GET_UCHAR(BZ_X_BLKHDR_1, uc);
+
+      if (uc == 0x17) goto endhdr_2;
+      if (uc != 0x31) RETURN(BZ_DATA_ERROR);
+      GET_UCHAR(BZ_X_BLKHDR_2, uc);
+      if (uc != 0x41) RETURN(BZ_DATA_ERROR);
+      GET_UCHAR(BZ_X_BLKHDR_3, uc);
+      if (uc != 0x59) RETURN(BZ_DATA_ERROR);
+      GET_UCHAR(BZ_X_BLKHDR_4, uc);
+      if (uc != 0x26) RETURN(BZ_DATA_ERROR);
+      GET_UCHAR(BZ_X_BLKHDR_5, uc);
+      if (uc != 0x53) RETURN(BZ_DATA_ERROR);
+      GET_UCHAR(BZ_X_BLKHDR_6, uc);
+      if (uc != 0x59) RETURN(BZ_DATA_ERROR);
+
+      s->currBlockNo++;
+      if (s->verbosity >= 2)
+	 VPrintf1 ( "\n    [%d: huff+mtf ", s->currBlockNo );
+
+      s->storedBlockCRC = 0;
+      GET_UCHAR(BZ_X_BCRC_1, uc);
+      s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc);
+      GET_UCHAR(BZ_X_BCRC_2, uc);
+      s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc);
+      GET_UCHAR(BZ_X_BCRC_3, uc);
+      s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc);
+      GET_UCHAR(BZ_X_BCRC_4, uc);
+      s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc);
+
+      GET_BITS(BZ_X_RANDBIT, s->blockRandomised, 1);
+
+      s->origPtr = 0;
+      GET_UCHAR(BZ_X_ORIGPTR_1, uc);
+      s->origPtr = (s->origPtr << 8) | ((Int32)uc);
+      GET_UCHAR(BZ_X_ORIGPTR_2, uc);
+      s->origPtr = (s->origPtr << 8) | ((Int32)uc);
+      GET_UCHAR(BZ_X_ORIGPTR_3, uc);
+      s->origPtr = (s->origPtr << 8) | ((Int32)uc);
+
+      if (s->origPtr < 0)
+	 RETURN(BZ_DATA_ERROR);
+      if (s->origPtr > 10 + 100000*s->blockSize100k)
+	 RETURN(BZ_DATA_ERROR);
+
+      /*--- Receive the mapping table ---*/
+      for (i = 0; i < 16; i++) {
+	 GET_BIT(BZ_X_MAPPING_1, uc);
+	 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++) {
+	       GET_BIT(BZ_X_MAPPING_2, uc);
+	       if (uc == 1) s->inUse[i * 16 + j] = True;
+	    }
+      makeMaps_d ( s );
+      if (s->nInUse == 0) RETURN(BZ_DATA_ERROR);
+      alphaSize = s->nInUse+2;
+
+      /*--- Now the selectors ---*/
+      GET_BITS(BZ_X_SELECTOR_1, nGroups, 3);
+      if (nGroups < 2 || nGroups > 6) RETURN(BZ_DATA_ERROR);
+      GET_BITS(BZ_X_SELECTOR_2, nSelectors, 15);
+      if (nSelectors < 1) RETURN(BZ_DATA_ERROR);
+      for (i = 0; i < nSelectors; i++) {
+	 j = 0;
+	 while (True) {
+	    GET_BIT(BZ_X_SELECTOR_3, uc);
+	    if (uc == 0) break;
+	    j++;
+	    if (j >= nGroups) RETURN(BZ_DATA_ERROR);
+	 }
+	 s->selectorMtf[i] = j;
+      }
+
+      /*--- Undo the MTF values for the selectors. ---*/
+      {
+	 UChar 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++) {
+	 GET_BITS(BZ_X_CODING_1, curr, 5);
+	 for (i = 0; i < alphaSize; i++) {
+	    while (True) {
+	       if (curr < 1 || curr > 20) RETURN(BZ_DATA_ERROR);
+	       GET_BIT(BZ_X_CODING_2, uc);
+	       if (uc == 0) break;
+	       GET_BIT(BZ_X_CODING_3, uc);
+	       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 --*/
+      {
+	 Int32 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] = (UChar)(ii * MTFL_SIZE + jj);
+	       kk--;
+	    }
+	    s->mtfbase[ii] = kk + 1;
+	 }
+      }
+      /*-- end MTF init --*/
+
+      nblock = 0;
+      GET_MTF_VAL(BZ_X_MTF_1, BZ_X_MTF_2, nextSym);
+
+      while (True) {
+
+#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
+	WATCHDOG_RESET();
+#endif
+	 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;
+	       GET_MTF_VAL(BZ_X_MTF_3, BZ_X_MTF_4, nextSym);
+	    }
+	       while (nextSym == BZ_RUNA || nextSym == BZ_RUNB);
+
+	    es++;
+	    uc = s->seqToUnseq[ s->mtfa[s->mtfbase[0]] ];
+	    s->unzftab[uc] += es;
+
+	    if (s->smallDecompress)
+	       while (es > 0) {
+		  if (nblock >= nblockMAX) RETURN(BZ_DATA_ERROR);
+		  s->ll16[nblock] = (UInt16)uc;
+		  nblock++;
+		  es--;
+	       }
+	    else
+	       while (es > 0) {
+		  if (nblock >= nblockMAX) RETURN(BZ_DATA_ERROR);
+		  s->tt[nblock] = (UInt32)uc;
+		  nblock++;
+		  es--;
+	       };
+
+	    continue;
+
+	 } else {
+
+	    if (nblock >= nblockMAX) RETURN(BZ_DATA_ERROR);
+
+	    /*-- uc = MTF ( nextSym-1 ) --*/
+	    {
+	       Int32 ii, jj, kk, pp, lno, off;
+	       UInt32 nn;
+	       nn = (UInt32)(nextSym - 1);
+
+	       if (nn < MTFL_SIZE) {
+		  /* avoid general-case expense */
+		  pp = s->mtfbase[0];
+		  uc = s->mtfa[pp+nn];
+		  while (nn > 3) {
+		     Int32 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--) {
+#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
+			WATCHDOG_RESET();
+#endif
+			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]]++;
+	    if (s->smallDecompress)
+	       s->ll16[nblock] = (UInt16)(s->seqToUnseq[uc]); else
+	       s->tt[nblock]   = (UInt32)(s->seqToUnseq[uc]);
+	    nblock++;
+
+	    GET_MTF_VAL(BZ_X_MTF_5, BZ_X_MTF_6, nextSym);
+	    continue;
+	 }
+      }
+
+      /* Now we know what nblock is, we can do a better sanity
+	 check on s->origPtr.
+      */
+      if (s->origPtr < 0 || s->origPtr >= nblock)
+	 RETURN(BZ_DATA_ERROR);
+
+      s->state_out_len = 0;
+      s->state_out_ch  = 0;
+      BZ_INITIALISE_CRC ( s->calculatedBlockCRC );
+      s->state = BZ_X_OUTPUT;
+      if (s->verbosity >= 2) VPrintf0 ( "rt+rld" );
+
+      /*-- 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];
+
+      if (s->smallDecompress) {
+
+	 /*-- Make a copy of cftab, used in generation of T --*/
+	 for (i = 0; i <= 256; i++) s->cftabCopy[i] = s->cftab[i];
+
+	 /*-- compute the T vector --*/
+	 for (i = 0; i < nblock; i++) {
+	    uc = (UChar)(s->ll16[i]);
+	    SET_LL(i, s->cftabCopy[uc]);
+	    s->cftabCopy[uc]++;
+	 }
+
+	 /*-- Compute T^(-1) by pointer reversal on T --*/
+	 i = s->origPtr;
+	 j = GET_LL(i);
+	 do {
+	    Int32 tmp = GET_LL(j);
+	    SET_LL(j, i);
+	    i = j;
+	    j = tmp;
+	 }
+	    while (i != s->origPtr);
+
+#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
+	WATCHDOG_RESET();
+#endif
+	 s->tPos = s->origPtr;
+	 s->nblock_used = 0;
+	 if (s->blockRandomised) {
+	    BZ_RAND_INIT_MASK;
+	    BZ_GET_SMALL(s->k0); s->nblock_used++;
+	    BZ_RAND_UPD_MASK; s->k0 ^= BZ_RAND_MASK;
+	 } else {
+	    BZ_GET_SMALL(s->k0); s->nblock_used++;
+	 }
+
+      } else {
+
+#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
+	WATCHDOG_RESET();
+#endif
+	 /*-- compute the T^(-1) vector --*/
+	 for (i = 0; i < nblock; i++) {
+	    uc = (UChar)(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) {
+	    BZ_RAND_INIT_MASK;
+	    BZ_GET_FAST(s->k0); s->nblock_used++;
+	    BZ_RAND_UPD_MASK; s->k0 ^= BZ_RAND_MASK;
+	 } else {
+	    BZ_GET_FAST(s->k0); s->nblock_used++;
+	 }
+
+      }
+
+      RETURN(BZ_OK);
+
+
+    endhdr_2:
+
+      GET_UCHAR(BZ_X_ENDHDR_2, uc);
+      if (uc != 0x72) RETURN(BZ_DATA_ERROR);
+      GET_UCHAR(BZ_X_ENDHDR_3, uc);
+      if (uc != 0x45) RETURN(BZ_DATA_ERROR);
+      GET_UCHAR(BZ_X_ENDHDR_4, uc);
+      if (uc != 0x38) RETURN(BZ_DATA_ERROR);
+      GET_UCHAR(BZ_X_ENDHDR_5, uc);
+      if (uc != 0x50) RETURN(BZ_DATA_ERROR);
+      GET_UCHAR(BZ_X_ENDHDR_6, uc);
+      if (uc != 0x90) RETURN(BZ_DATA_ERROR);
+
+      s->storedCombinedCRC = 0;
+      GET_UCHAR(BZ_X_CCRC_1, uc);
+      s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc);
+      GET_UCHAR(BZ_X_CCRC_2, uc);
+      s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc);
+      GET_UCHAR(BZ_X_CCRC_3, uc);
+      s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc);
+      GET_UCHAR(BZ_X_CCRC_4, uc);
+      s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc);
+
+      s->state = BZ_X_IDLE;
+      RETURN(BZ_STREAM_END);
+
+      default: AssertH ( False, 4001 );
+   }
+
+   AssertH ( False, 4002 );
+
+   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;
+}
+
+
+/*-------------------------------------------------------------*/
+/*--- end                                      decompress.c ---*/
+/*-------------------------------------------------------------*/
diff --git a/lib/bzip2/bzlib_huffman.c b/lib/bzip2/bzlib_huffman.c
new file mode 100644
index 0000000..801b8ec
--- /dev/null
+++ b/lib/bzip2/bzlib_huffman.c
@@ -0,0 +1,229 @@
+#include <config.h>
+
+/*-------------------------------------------------------------*/
+/*--- Huffman coding low-level stuff                        ---*/
+/*---                                             huffman.c ---*/
+/*-------------------------------------------------------------*/
+
+/*--
+  This file is a part of bzip2 and/or libbzip2, a program and
+  library for lossless, block-sorting data compression.
+
+  Copyright (C) 1996-2002 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 "bzlib_private.h"
+
+/*---------------------------------------------------*/
+#define WEIGHTOF(zz0)  ((zz0) & 0xffffff00)
+#define DEPTHOF(zz1)   ((zz1) & 0x000000ff)
+#define MYMAX(zz2,zz3) ((zz2) > (zz3) ? (zz2) : (zz3))
+
+#define ADDWEIGHTS(zw1,zw2)                           \
+   (WEIGHTOF(zw1)+WEIGHTOF(zw2)) |                    \
+   (1 + MYMAX(DEPTHOF(zw1),DEPTHOF(zw2)))
+
+#define UPHEAP(z)                                     \
+{                                                     \
+   Int32 zz, tmp;                                     \
+   zz = z; tmp = heap[zz];                            \
+   while (weight[tmp] < weight[heap[zz >> 1]]) {      \
+      heap[zz] = heap[zz >> 1];                       \
+      zz >>= 1;                                       \
+   }                                                  \
+   heap[zz] = tmp;                                    \
+}
+
+#define DOWNHEAP(z)                                   \
+{                                                     \
+   Int32 zz, yy, tmp;                                 \
+   zz = z; tmp = heap[zz];                            \
+   while (True) {                                     \
+      yy = zz << 1;                                   \
+      if (yy > nHeap) break;                          \
+      if (yy < nHeap &&                               \
+	  weight[heap[yy+1]] < weight[heap[yy]])      \
+	 yy++;                                        \
+      if (weight[tmp] < weight[heap[yy]]) break;      \
+      heap[zz] = heap[yy];                            \
+      zz = yy;                                        \
+   }                                                  \
+   heap[zz] = tmp;                                    \
+}
+
+
+/*---------------------------------------------------*/
+void BZ2_hbMakeCodeLengths ( UChar *len,
+			     Int32 *freq,
+			     Int32 alphaSize,
+			     Int32 maxLen )
+{
+   /*--
+      Nodes and heap entries run from 1.  Entry 0
+      for both the heap and nodes is a sentinel.
+   --*/
+   Int32 nNodes, nHeap, n1, n2, i, j, k;
+   Bool  tooLong;
+
+   Int32 heap   [ BZ_MAX_ALPHA_SIZE + 2 ];
+   Int32 weight [ BZ_MAX_ALPHA_SIZE * 2 ];
+   Int32 parent [ BZ_MAX_ALPHA_SIZE * 2 ];
+
+   for (i = 0; i < alphaSize; i++)
+      weight[i+1] = (freq[i] == 0 ? 1 : freq[i]) << 8;
+
+   while (True) {
+
+      nNodes = alphaSize;
+      nHeap = 0;
+
+      heap[0] = 0;
+      weight[0] = 0;
+      parent[0] = -2;
+
+      for (i = 1; i <= alphaSize; i++) {
+	 parent[i] = -1;
+	 nHeap++;
+	 heap[nHeap] = i;
+	 UPHEAP(nHeap);
+      }
+
+      AssertH( nHeap < (BZ_MAX_ALPHA_SIZE+2), 2001 );
+
+      while (nHeap > 1) {
+	 n1 = heap[1]; heap[1] = heap[nHeap]; nHeap--; DOWNHEAP(1);
+	 n2 = heap[1]; heap[1] = heap[nHeap]; nHeap--; DOWNHEAP(1);
+	 nNodes++;
+	 parent[n1] = parent[n2] = nNodes;
+	 weight[nNodes] = ADDWEIGHTS(weight[n1], weight[n2]);
+	 parent[nNodes] = -1;
+	 nHeap++;
+	 heap[nHeap] = nNodes;
+	 UPHEAP(nHeap);
+      }
+
+      AssertH( nNodes < (BZ_MAX_ALPHA_SIZE * 2), 2002 );
+
+      tooLong = False;
+      for (i = 1; i <= alphaSize; i++) {
+	 j = 0;
+	 k = i;
+	 while (parent[k] >= 0) { k = parent[k]; j++; }
+	 len[i-1] = j;
+	 if (j > maxLen) tooLong = True;
+      }
+
+      if (! tooLong) break;
+
+      for (i = 1; i < alphaSize; i++) {
+	 j = weight[i] >> 8;
+	 j = 1 + (j / 2);
+	 weight[i] = j << 8;
+      }
+   }
+}
+
+
+/*---------------------------------------------------*/
+void BZ2_hbAssignCodes ( Int32 *code,
+			 UChar *length,
+			 Int32 minLen,
+			 Int32 maxLen,
+			 Int32 alphaSize )
+{
+   Int32 n, vec, i;
+
+   vec = 0;
+   for (n = minLen; n <= maxLen; n++) {
+      for (i = 0; i < alphaSize; i++)
+	 if (length[i] == n) { code[i] = vec; vec++; };
+      vec <<= 1;
+   }
+}
+
+
+/*---------------------------------------------------*/
+void BZ2_hbCreateDecodeTables ( Int32 *limit,
+				Int32 *base,
+				Int32 *perm,
+				UChar *length,
+				Int32 minLen,
+				Int32 maxLen,
+				Int32 alphaSize )
+{
+   Int32 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];
+}
+
+
+/*-------------------------------------------------------------*/
+/*--- end                                         huffman.c ---*/
+/*-------------------------------------------------------------*/
diff --git a/lib/bzip2/bzlib_private.h b/lib/bzip2/bzlib_private.h
new file mode 100644
index 0000000..87d8f94
--- /dev/null
+++ b/lib/bzip2/bzlib_private.h
@@ -0,0 +1,530 @@
+/*
+ * This file is a modified version of bzlib_private.h from the bzip2-1.0.2
+ * distribution which can be found at http://sources.redhat.com/bzip2/
+ */
+
+/*-------------------------------------------------------------*/
+/*--- Private header file for the library.                  ---*/
+/*---                                       bzlib_private.h ---*/
+/*-------------------------------------------------------------*/
+
+/*--
+  This file is a part of bzip2 and/or libbzip2, a program and
+  library for lossless, block-sorting data compression.
+
+  Copyright (C) 1996-2002 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.
+--*/
+
+
+#ifndef _BZLIB_PRIVATE_H
+#define _BZLIB_PRIVATE_H
+
+#include <malloc.h>
+
+#include "bzlib.h"
+
+#ifndef BZ_NO_STDIO
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+#endif
+
+
+/*-- General stuff. --*/
+
+#define BZ_VERSION  "1.0.2, 30-Dec-2001"
+
+typedef char            Char;
+typedef unsigned char   Bool;
+typedef unsigned char   UChar;
+typedef int             Int32;
+typedef unsigned int    UInt32;
+typedef short           Int16;
+typedef unsigned short  UInt16;
+
+#define True  ((Bool)1)
+#define False ((Bool)0)
+
+#ifndef __GNUC__
+#define __inline__  /* */
+#endif
+
+#ifndef BZ_NO_STDIO
+extern void BZ2_bz__AssertH__fail ( int errcode );
+#define AssertH(cond,errcode) \
+   { if (!(cond)) BZ2_bz__AssertH__fail ( errcode ); }
+#if BZ_DEBUG
+#define AssertD(cond,msg) \
+   { if (!(cond)) {       \
+      fprintf ( stderr,   \
+	"\n\nlibbzip2(debug build): internal error\n\t%s\n", msg );\
+      exit(1); \
+   }}
+#else
+#define AssertD(cond,msg) /* */
+#endif
+#define VPrintf0(zf) \
+   fprintf(stderr,zf)
+#define VPrintf1(zf,za1) \
+   fprintf(stderr,zf,za1)
+#define VPrintf2(zf,za1,za2) \
+   fprintf(stderr,zf,za1,za2)
+#define VPrintf3(zf,za1,za2,za3) \
+   fprintf(stderr,zf,za1,za2,za3)
+#define VPrintf4(zf,za1,za2,za3,za4) \
+   fprintf(stderr,zf,za1,za2,za3,za4)
+#define VPrintf5(zf,za1,za2,za3,za4,za5) \
+   fprintf(stderr,zf,za1,za2,za3,za4,za5)
+#else
+extern void bz_internal_error ( int errcode );
+#define AssertH(cond,errcode) \
+   { if (!(cond)) bz_internal_error ( errcode ); }
+#define AssertD(cond,msg) /* */
+#define VPrintf0(zf) /* */
+#define VPrintf1(zf,za1) /* */
+#define VPrintf2(zf,za1,za2) /* */
+#define VPrintf3(zf,za1,za2,za3) /* */
+#define VPrintf4(zf,za1,za2,za3,za4) /* */
+#define VPrintf5(zf,za1,za2,za3,za4,za5) /* */
+#endif
+
+
+#define BZALLOC(nnn) (strm->bzalloc)(strm->opaque,(nnn),1)
+#define BZFREE(ppp)  (strm->bzfree)(strm->opaque,(ppp))
+
+
+/*-- Header bytes. --*/
+
+#define BZ_HDR_B 0x42   /* 'B' */
+#define BZ_HDR_Z 0x5a   /* 'Z' */
+#define BZ_HDR_h 0x68   /* 'h' */
+#define BZ_HDR_0 0x30   /* '0' */
+
+/*-- Constants for the back end. --*/
+
+#define BZ_MAX_ALPHA_SIZE 258
+#define BZ_MAX_CODE_LEN    23
+
+#define BZ_RUNA 0
+#define BZ_RUNB 1
+
+#define BZ_N_GROUPS 6
+#define BZ_G_SIZE   50
+#define BZ_N_ITERS  4
+
+#define BZ_MAX_SELECTORS (2 + (900000 / BZ_G_SIZE))
+
+
+/*-- Stuff for randomising repetitive blocks. --*/
+
+extern Int32 BZ2_rNums[512];
+
+#define BZ_RAND_DECLS                          \
+   Int32 rNToGo;                               \
+   Int32 rTPos                                 \
+
+#define BZ_RAND_INIT_MASK                      \
+   s->rNToGo = 0;                              \
+   s->rTPos  = 0                               \
+
+#define BZ_RAND_MASK ((s->rNToGo == 1) ? 1 : 0)
+
+#define BZ_RAND_UPD_MASK                       \
+   if (s->rNToGo == 0) {                       \
+      s->rNToGo = BZ2_rNums[s->rTPos];         \
+      s->rTPos++;                              \
+      if (s->rTPos == 512) s->rTPos = 0;       \
+   }                                           \
+   s->rNToGo--;
+
+
+/*-- Stuff for doing CRCs. --*/
+
+extern UInt32 BZ2_crc32Table[256];
+
+#define BZ_INITIALISE_CRC(crcVar)              \
+{                                              \
+   crcVar = 0xffffffffL;                       \
+}
+
+#define BZ_FINALISE_CRC(crcVar)                \
+{                                              \
+   crcVar = ~(crcVar);                         \
+}
+
+#define BZ_UPDATE_CRC(crcVar,cha)              \
+{                                              \
+   crcVar = (crcVar << 8) ^                    \
+	    BZ2_crc32Table[(crcVar >> 24) ^    \
+			   ((UChar)cha)];      \
+}
+
+
+/*-- States and modes for compression. --*/
+
+#define BZ_M_IDLE      1
+#define BZ_M_RUNNING   2
+#define BZ_M_FLUSHING  3
+#define BZ_M_FINISHING 4
+
+#define BZ_S_OUTPUT    1
+#define BZ_S_INPUT     2
+
+#define BZ_N_RADIX 2
+#define BZ_N_QSORT 12
+#define BZ_N_SHELL 18
+#define BZ_N_OVERSHOOT (BZ_N_RADIX + BZ_N_QSORT + BZ_N_SHELL + 2)
+
+
+/*-- Structure holding all the compression-side stuff. --*/
+
+typedef
+   struct {
+      /* pointer back to the struct bz_stream */
+      bz_stream* strm;
+
+      /* mode this stream is in, and whether inputting */
+      /* or outputting data */
+      Int32    mode;
+      Int32    state;
+
+      /* remembers avail_in when flush/finish requested */
+      UInt32   avail_in_expect;
+
+      /* for doing the block sorting */
+      UInt32*  arr1;
+      UInt32*  arr2;
+      UInt32*  ftab;
+      Int32    origPtr;
+
+      /* aliases for arr1 and arr2 */
+      UInt32*  ptr;
+      UChar*   block;
+      UInt16*  mtfv;
+      UChar*   zbits;
+
+      /* for deciding when to use the fallback sorting algorithm */
+      Int32    workFactor;
+
+      /* run-length-encoding of the input */
+      UInt32   state_in_ch;
+      Int32    state_in_len;
+      BZ_RAND_DECLS;
+
+      /* input and output limits and current posns */
+      Int32    nblock;
+      Int32    nblockMAX;
+      Int32    numZ;
+      Int32    state_out_pos;
+
+      /* map of bytes used in block */
+      Int32    nInUse;
+      Bool     inUse[256];
+      UChar    unseqToSeq[256];
+
+      /* the buffer for bit stream creation */
+      UInt32   bsBuff;
+      Int32    bsLive;
+
+      /* block and combined CRCs */
+      UInt32   blockCRC;
+      UInt32   combinedCRC;
+
+      /* misc administratium */
+      Int32    verbosity;
+      Int32    blockNo;
+      Int32    blockSize100k;
+
+      /* stuff for coding the MTF values */
+      Int32    nMTF;
+      Int32    mtfFreq    [BZ_MAX_ALPHA_SIZE];
+      UChar    selector   [BZ_MAX_SELECTORS];
+      UChar    selectorMtf[BZ_MAX_SELECTORS];
+
+      UChar    len     [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
+      Int32    code    [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
+      Int32    rfreq   [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
+      /* second dimension: only 3 needed; 4 makes index calculations faster */
+      UInt32   len_pack[BZ_MAX_ALPHA_SIZE][4];
+
+   }
+   EState;
+
+
+/*-- externs for compression. --*/
+
+extern void
+BZ2_blockSort ( EState* );
+
+extern void
+BZ2_compressBlock ( EState*, Bool );
+
+extern void
+BZ2_bsInitWrite ( EState* );
+
+extern void
+BZ2_hbAssignCodes ( Int32*, UChar*, Int32, Int32, Int32 );
+
+extern void
+BZ2_hbMakeCodeLengths ( UChar*, Int32*, Int32, Int32 );
+
+
+/*-- 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
+
+
+/*-- Constants for the fast MTF decoder. --*/
+
+#define MTFA_SIZE 4096
+#define MTFL_SIZE 16
+
+
+/*-- Structure holding all the decompression-side stuff. --*/
+
+typedef
+   struct {
+      /* pointer back to the struct bz_stream */
+      bz_stream* strm;
+
+      /* state indicator for this stream */
+      Int32    state;
+
+      /* for doing the final run-length decoding */
+      UChar    state_out_ch;
+      Int32    state_out_len;
+      Bool     blockRandomised;
+      BZ_RAND_DECLS;
+
+      /* the buffer for bit stream reading */
+      UInt32   bsBuff;
+      Int32    bsLive;
+
+      /* misc administratium */
+      Int32    blockSize100k;
+      Bool     smallDecompress;
+      Int32    currBlockNo;
+      Int32    verbosity;
+
+      /* for undoing the Burrows-Wheeler transform */
+      Int32    origPtr;
+      UInt32   tPos;
+      Int32    k0;
+      Int32    unzftab[256];
+      Int32    nblock_used;
+      Int32    cftab[257];
+      Int32    cftabCopy[257];
+
+      /* for undoing the Burrows-Wheeler transform (FAST) */
+      UInt32   *tt;
+
+      /* for undoing the Burrows-Wheeler transform (SMALL) */
+      UInt16   *ll16;
+      UChar    *ll4;
+
+      /* stored and calculated CRCs */
+      UInt32   storedBlockCRC;
+      UInt32   storedCombinedCRC;
+      UInt32   calculatedBlockCRC;
+      UInt32   calculatedCombinedCRC;
+
+      /* map of bytes used in block */
+      Int32    nInUse;
+      Bool     inUse[256];
+      Bool     inUse16[16];
+      UChar    seqToUnseq[256];
+
+      /* for decoding the MTF values */
+      UChar    mtfa   [MTFA_SIZE];
+      Int32    mtfbase[256 / MTFL_SIZE];
+      UChar    selector   [BZ_MAX_SELECTORS];
+      UChar    selectorMtf[BZ_MAX_SELECTORS];
+      UChar    len  [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
+
+      Int32    limit  [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
+      Int32    base   [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
+      Int32    perm   [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
+      Int32    minLens[BZ_N_GROUPS];
+
+      /* save area for scalars in the main decompress code */
+      Int32    save_i;
+      Int32    save_j;
+      Int32    save_t;
+      Int32    save_alphaSize;
+      Int32    save_nGroups;
+      Int32    save_nSelectors;
+      Int32    save_EOB;
+      Int32    save_groupNo;
+      Int32    save_groupPos;
+      Int32    save_nextSym;
+      Int32    save_nblockMAX;
+      Int32    save_nblock;
+      Int32    save_es;
+      Int32    save_N;
+      Int32    save_curr;
+      Int32    save_zt;
+      Int32    save_zn;
+      Int32    save_zvec;
+      Int32    save_zj;
+      Int32    save_gSel;
+      Int32    save_gMinlen;
+      Int32*   save_gLimit;
+      Int32*   save_gBase;
+      Int32*   save_gPerm;
+
+   }
+   DState;
+
+
+/*-- Macros for decompression. --*/
+
+#define BZ_GET_FAST(cccc)                     \
+    s->tPos = s->tt[s->tPos];                 \
+    cccc = (UChar)(s->tPos & 0xff);           \
+    s->tPos >>= 8;
+
+#define BZ_GET_FAST_C(cccc)                   \
+    c_tPos = c_tt[c_tPos];                    \
+    cccc = (UChar)(c_tPos & 0xff);            \
+    c_tPos >>= 8;
+
+#define SET_LL4(i,n)                                          \
+   { if (((i) & 0x1) == 0)                                    \
+	s->ll4[(i) >> 1] = (s->ll4[(i) >> 1] & 0xf0) | (n); else    \
+	s->ll4[(i) >> 1] = (s->ll4[(i) >> 1] & 0x0f) | ((n) << 4);  \
+   }
+
+#define GET_LL4(i)                             \
+   ((((UInt32)(s->ll4[(i) >> 1])) >> (((i) << 2) & 0x4)) & 0xF)
+
+#define SET_LL(i,n)                          \
+   { s->ll16[i] = (UInt16)(n & 0x0000ffff);  \
+     SET_LL4(i, n >> 16);                    \
+   }
+
+#define GET_LL(i) \
+   (((UInt32)s->ll16[i]) | (GET_LL4(i) << 16))
+
+#define BZ_GET_SMALL(cccc)                            \
+      cccc = BZ2_indexIntoF ( s->tPos, s->cftab );    \
+      s->tPos = GET_LL(s->tPos);
+
+
+/*-- externs for decompression. --*/
+
+extern Int32
+BZ2_indexIntoF ( Int32, Int32* );
+
+extern Int32
+BZ2_decompress ( DState* );
+
+extern void
+BZ2_hbCreateDecodeTables ( Int32*, Int32*, Int32*, UChar*,
+			   Int32,  Int32, Int32 );
+
+
+#endif
+
+
+/*-- BZ_NO_STDIO seems to make NULL disappear on some platforms. --*/
+
+#ifdef BZ_NO_STDIO
+#ifndef NULL
+#define NULL 0
+#endif
+#endif
+
+
+/*-------------------------------------------------------------*/
+/*--- end                                   bzlib_private.h ---*/
+/*-------------------------------------------------------------*/
diff --git a/lib/bzip2/bzlib_randtable.c b/lib/bzip2/bzlib_randtable.c
new file mode 100644
index 0000000..c3dc7e4
--- /dev/null
+++ b/lib/bzip2/bzlib_randtable.c
@@ -0,0 +1,125 @@
+#include <config.h>
+
+/*-------------------------------------------------------------*/
+/*--- Table for randomising repetitive blocks               ---*/
+/*---                                           randtable.c ---*/
+/*-------------------------------------------------------------*/
+
+/*--
+  This file is a part of bzip2 and/or libbzip2, a program and
+  library for lossless, block-sorting data compression.
+
+  Copyright (C) 1996-2002 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 "bzlib_private.h"
+
+
+/*---------------------------------------------*/
+Int32 BZ2_rNums[512] = {
+   619, 720, 127, 481, 931, 816, 813, 233, 566, 247,
+   985, 724, 205, 454, 863, 491, 741, 242, 949, 214,
+   733, 859, 335, 708, 621, 574, 73, 654, 730, 472,
+   419, 436, 278, 496, 867, 210, 399, 680, 480, 51,
+   878, 465, 811, 169, 869, 675, 611, 697, 867, 561,
+   862, 687, 507, 283, 482, 129, 807, 591, 733, 623,
+   150, 238, 59, 379, 684, 877, 625, 169, 643, 105,
+   170, 607, 520, 932, 727, 476, 693, 425, 174, 647,
+   73, 122, 335, 530, 442, 853, 695, 249, 445, 515,
+   909, 545, 703, 919, 874, 474, 882, 500, 594, 612,
+   641, 801, 220, 162, 819, 984, 589, 513, 495, 799,
+   161, 604, 958, 533, 221, 400, 386, 867, 600, 782,
+   382, 596, 414, 171, 516, 375, 682, 485, 911, 276,
+   98, 553, 163, 354, 666, 933, 424, 341, 533, 870,
+   227, 730, 475, 186, 263, 647, 537, 686, 600, 224,
+   469, 68, 770, 919, 190, 373, 294, 822, 808, 206,
+   184, 943, 795, 384, 383, 461, 404, 758, 839, 887,
+   715, 67, 618, 276, 204, 918, 873, 777, 604, 560,
+   951, 160, 578, 722, 79, 804, 96, 409, 713, 940,
+   652, 934, 970, 447, 318, 353, 859, 672, 112, 785,
+   645, 863, 803, 350, 139, 93, 354, 99, 820, 908,
+   609, 772, 154, 274, 580, 184, 79, 626, 630, 742,
+   653, 282, 762, 623, 680, 81, 927, 626, 789, 125,
+   411, 521, 938, 300, 821, 78, 343, 175, 128, 250,
+   170, 774, 972, 275, 999, 639, 495, 78, 352, 126,
+   857, 956, 358, 619, 580, 124, 737, 594, 701, 612,
+   669, 112, 134, 694, 363, 992, 809, 743, 168, 974,
+   944, 375, 748, 52, 600, 747, 642, 182, 862, 81,
+   344, 805, 988, 739, 511, 655, 814, 334, 249, 515,
+   897, 955, 664, 981, 649, 113, 974, 459, 893, 228,
+   433, 837, 553, 268, 926, 240, 102, 654, 459, 51,
+   686, 754, 806, 760, 493, 403, 415, 394, 687, 700,
+   946, 670, 656, 610, 738, 392, 760, 799, 887, 653,
+   978, 321, 576, 617, 626, 502, 894, 679, 243, 440,
+   680, 879, 194, 572, 640, 724, 926, 56, 204, 700,
+   707, 151, 457, 449, 797, 195, 791, 558, 945, 679,
+   297, 59, 87, 824, 713, 663, 412, 693, 342, 606,
+   134, 108, 571, 364, 631, 212, 174, 643, 304, 329,
+   343, 97, 430, 751, 497, 314, 983, 374, 822, 928,
+   140, 206, 73, 263, 980, 736, 876, 478, 430, 305,
+   170, 514, 364, 692, 829, 82, 855, 953, 676, 246,
+   369, 970, 294, 750, 807, 827, 150, 790, 288, 923,
+   804, 378, 215, 828, 592, 281, 565, 555, 710, 82,
+   896, 831, 547, 261, 524, 462, 293, 465, 502, 56,
+   661, 821, 976, 991, 658, 869, 905, 758, 745, 193,
+   768, 550, 608, 933, 378, 286, 215, 979, 792, 961,
+   61, 688, 793, 644, 986, 403, 106, 366, 905, 644,
+   372, 567, 466, 434, 645, 210, 389, 550, 919, 135,
+   780, 773, 635, 389, 707, 100, 626, 958, 165, 504,
+   920, 176, 193, 713, 857, 265, 203, 50, 668, 108,
+   645, 990, 626, 197, 510, 357, 358, 850, 858, 364,
+   936, 638
+};
+
+
+/*-------------------------------------------------------------*/
+/*--- end                                       randtable.c ---*/
+/*-------------------------------------------------------------*/