Merge bk://openembedded@openembedded.bkbits.net/packages

into dixie.nexus.co.uk:/home/pb/oe/oe-packages

2004/07/05 23:58:49+01:00 nexus.co.uk!pb
add zlib headers

BKrev: 40e9dd3bV5bRpBLUdJCTDlTks20onw

1 files changed, 1134 insertions, 0 deletions

diff --git a/linux/handhelds-pxa-2.4.19-rmk6-pxa1-hh36.12/ipsec.patch b/linux/handhelds-pxa-2.4.19-rmk6-pxa1-hh36.12/ipsec.patch
index e69de29bb2..0abf5e9fc9 100644
--- a/linux/handhelds-pxa-2.4.19-rmk6-pxa1-hh36.12/ipsec.patch
+++ b/linux/handhelds-pxa-2.4.19-rmk6-pxa1-hh36.12/ipsec.patch
@@ -0,0 +1,1134 @@
+--- linux/net/Makefile	3 Dec 2003 19:15:16 -0000	1.25
++++ linux/net/Makefile	20 Feb 2003 15:50:38 -0000	1.24
+@@ -19,6 +19,7 @@
+ subdir-$(CONFIG_NETFILTER)	+= ipv4/netfilter
+ subdir-$(CONFIG_UNIX)		+= unix
+ subdir-$(CONFIG_IPV6)		+= ipv6
++subdir-$(CONFIG_IPSEC)		+= ipsec
+ 
+ ifneq ($(CONFIG_IPV6),n)
+ ifneq ($(CONFIG_IPV6),)
+--- /dev/null	2004-02-02 20:32:13.000000000 +0000
++++ linux/include/zlib/zlib.h	2004-07-05 23:56:59.000000000 +0100
+@@ -0,0 +1,893 @@
++/* zlib.h -- interface of the 'zlib' general purpose compression library
++  version 1.1.4, March 11th, 2002
++
++  Copyright (C) 1995-2002 Jean-loup Gailly and Mark Adler
++
++  This software is provided 'as-is', without any express or implied
++  warranty.  In no event will the authors be held liable for any damages
++  arising from the use of this software.
++
++  Permission is granted to anyone to use this software for any purpose,
++  including commercial applications, and to alter it and redistribute it
++  freely, subject to the following restrictions:
++
++  1. 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.
++  2. Altered source versions must be plainly marked as such, and must not be
++     misrepresented as being the original software.
++  3. This notice may not be removed or altered from any source distribution.
++
++  Jean-loup Gailly        Mark Adler
++  jloup@gzip.org          madler@alumni.caltech.edu
++
++
++  The data format used by the zlib library is described by RFCs (Request for
++  Comments) 1950 to 1952 in the files ftp://ds.internic.net/rfc/rfc1950.txt
++  (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format).
++*/
++
++#ifndef _ZLIB_H
++#define _ZLIB_H
++
++#include "zconf.h"
++
++#ifdef __cplusplus
++extern "C" {
++#endif
++
++#define ZLIB_VERSION "1.1.4"
++
++/* 
++     The 'zlib' compression library provides in-memory compression and
++  decompression functions, including integrity checks of the uncompressed
++  data.  This version of the library supports only one compression method
++  (deflation) but other algorithms will be added later and will have the same
++  stream interface.
++
++     Compression can be done in a single step if the buffers are large
++  enough (for example if an input file is mmap'ed), or can be done by
++  repeated calls of the compression function.  In the latter case, the
++  application must provide more input and/or consume the output
++  (providing more output space) before each call.
++
++     The library also supports reading and writing files in gzip (.gz) format
++  with an interface similar to that of stdio.
++
++     The library does not install any signal handler. The decoder checks
++  the consistency of the compressed data, so the library should never
++  crash even in case of corrupted input.
++*/
++
++typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size));
++typedef void   (*free_func)  OF((voidpf opaque, voidpf address));
++
++struct internal_state;
++
++typedef struct z_stream_s {
++    Bytef    *next_in;  /* next input byte */
++    uInt     avail_in;  /* number of bytes available at next_in */
++    uLong    total_in;  /* total nb of input bytes read so far */
++
++    Bytef    *next_out; /* next output byte should be put there */
++    uInt     avail_out; /* remaining free space at next_out */
++    uLong    total_out; /* total nb of bytes output so far */
++
++    const char     *msg;      /* last error message, NULL if no error */
++    struct internal_state FAR *state; /* not visible by applications */
++
++    alloc_func zalloc;  /* used to allocate the internal state */
++    free_func  zfree;   /* used to free the internal state */
++    voidpf     opaque;  /* private data object passed to zalloc and zfree */
++
++    int     data_type;  /* best guess about the data type: ascii or binary */
++    uLong   adler;      /* adler32 value of the uncompressed data */
++    uLong   reserved;   /* reserved for future use */
++} z_stream;
++
++typedef z_stream FAR *z_streamp;
++
++/*
++   The application must update next_in and avail_in when avail_in has
++   dropped to zero. It must update next_out and avail_out when avail_out
++   has dropped to zero. The application must initialize zalloc, zfree and
++   opaque before calling the init function. All other fields are set by the
++   compression library and must not be updated by the application.
++
++   The opaque value provided by the application will be passed as the first
++   parameter for calls of zalloc and zfree. This can be useful for custom
++   memory management. The compression library attaches no meaning to the
++   opaque value.
++
++   zalloc must return Z_NULL if there is not enough memory for the object.
++   If zlib is used in a multi-threaded application, zalloc and zfree must be
++   thread safe.
++
++   On 16-bit systems, the functions zalloc and zfree must be able to allocate
++   exactly 65536 bytes, but will not be required to allocate more than this
++   if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS,
++   pointers returned by zalloc for objects of exactly 65536 bytes *must*
++   have their offset normalized to zero. The default allocation function
++   provided by this library ensures this (see zutil.c). To reduce memory
++   requirements and avoid any allocation of 64K objects, at the expense of
++   compression ratio, compile the library with -DMAX_WBITS=14 (see zconf.h).
++
++   The fields total_in and total_out can be used for statistics or
++   progress reports. After compression, total_in holds the total size of
++   the uncompressed data and may be saved for use in the decompressor
++   (particularly if the decompressor wants to decompress everything in
++   a single step).
++*/
++
++                        /* constants */
++
++#define Z_NO_FLUSH      0
++#define Z_PARTIAL_FLUSH 1 /* will be removed, use Z_SYNC_FLUSH instead */
++#define Z_SYNC_FLUSH    2
++#define Z_FULL_FLUSH    3
++#define Z_FINISH        4
++/* Allowed flush values; see deflate() below for details */
++
++#define Z_OK            0
++#define Z_STREAM_END    1
++#define Z_NEED_DICT     2
++#define Z_ERRNO        (-1)
++#define Z_STREAM_ERROR (-2)
++#define Z_DATA_ERROR   (-3)
++#define Z_MEM_ERROR    (-4)
++#define Z_BUF_ERROR    (-5)
++#define Z_VERSION_ERROR (-6)
++/* Return codes for the compression/decompression functions. Negative
++ * values are errors, positive values are used for special but normal events.
++ */
++
++#define Z_NO_COMPRESSION         0
++#define Z_BEST_SPEED             1
++#define Z_BEST_COMPRESSION       9
++#define Z_DEFAULT_COMPRESSION  (-1)
++/* compression levels */
++
++#define Z_FILTERED            1
++#define Z_HUFFMAN_ONLY        2
++#define Z_DEFAULT_STRATEGY    0
++/* compression strategy; see deflateInit2() below for details */
++
++#define Z_BINARY   0
++#define Z_ASCII    1
++#define Z_UNKNOWN  2
++/* Possible values of the data_type field */
++
++#define Z_DEFLATED   8
++/* The deflate compression method (the only one supported in this version) */
++
++#define Z_NULL  0  /* for initializing zalloc, zfree, opaque */
++
++#define zlib_version zlibVersion()
++/* for compatibility with versions < 1.0.2 */
++
++                        /* basic functions */
++
++ZEXTERN const char * ZEXPORT zlibVersion OF((void));
++/* The application can compare zlibVersion and ZLIB_VERSION for consistency.
++   If the first character differs, the library code actually used is
++   not compatible with the zlib.h header file used by the application.
++   This check is automatically made by deflateInit and inflateInit.
++ */
++
++/* 
++ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level));
++
++     Initializes the internal stream state for compression. The fields
++   zalloc, zfree and opaque must be initialized before by the caller.
++   If zalloc and zfree are set to Z_NULL, deflateInit updates them to
++   use default allocation functions.
++
++     The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9:
++   1 gives best speed, 9 gives best compression, 0 gives no compression at
++   all (the input data is simply copied a block at a time).
++   Z_DEFAULT_COMPRESSION requests a default compromise between speed and
++   compression (currently equivalent to level 6).
++
++     deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not
++   enough memory, Z_STREAM_ERROR if level is not a valid compression level,
++   Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible
++   with the version assumed by the caller (ZLIB_VERSION).
++   msg is set to null if there is no error message.  deflateInit does not
++   perform any compression: this will be done by deflate().
++*/
++
++
++ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush));
++/*
++    deflate compresses as much data as possible, and stops when the input
++  buffer becomes empty or the output buffer becomes full. It may introduce some
++  output latency (reading input without producing any output) except when
++  forced to flush.
++
++    The detailed semantics are as follows. deflate performs one or both of the
++  following actions:
++
++  - Compress more input starting at next_in and update next_in and avail_in
++    accordingly. If not all input can be processed (because there is not
++    enough room in the output buffer), next_in and avail_in are updated and
++    processing will resume at this point for the next call of deflate().
++
++  - Provide more output starting at next_out and update next_out and avail_out
++    accordingly. This action is forced if the parameter flush is non zero.
++    Forcing flush frequently degrades the compression ratio, so this parameter
++    should be set only when necessary (in interactive applications).
++    Some output may be provided even if flush is not set.
++
++  Before the call of deflate(), the application should ensure that at least
++  one of the actions is possible, by providing more input and/or consuming
++  more output, and updating avail_in or avail_out accordingly; avail_out
++  should never be zero before the call. The application can consume the
++  compressed output when it wants, for example when the output buffer is full
++  (avail_out == 0), or after each call of deflate(). If deflate returns Z_OK
++  and with zero avail_out, it must be called again after making room in the
++  output buffer because there might be more output pending.
++
++    If the parameter flush is set to Z_SYNC_FLUSH, all pending output is
++  flushed to the output buffer and the output is aligned on a byte boundary, so
++  that the decompressor can get all input data available so far. (In particular
++  avail_in is zero after the call if enough output space has been provided
++  before the call.)  Flushing may degrade compression for some compression
++  algorithms and so it should be used only when necessary.
++
++    If flush is set to Z_FULL_FLUSH, all output is flushed as with
++  Z_SYNC_FLUSH, and the compression state is reset so that decompression can
++  restart from this point if previous compressed data has been damaged or if
++  random access is desired. Using Z_FULL_FLUSH too often can seriously degrade
++  the compression.
++
++    If deflate returns with avail_out == 0, this function must be called again
++  with the same value of the flush parameter and more output space (updated
++  avail_out), until the flush is complete (deflate returns with non-zero
++  avail_out).
++
++    If the parameter flush is set to Z_FINISH, pending input is processed,
++  pending output is flushed and deflate returns with Z_STREAM_END if there
++  was enough output space; if deflate returns with Z_OK, this function must be
++  called again with Z_FINISH and more output space (updated avail_out) but no
++  more input data, until it returns with Z_STREAM_END or an error. After
++  deflate has returned Z_STREAM_END, the only possible operations on the
++  stream are deflateReset or deflateEnd.
++  
++    Z_FINISH can be used immediately after deflateInit if all the compression
++  is to be done in a single step. In this case, avail_out must be at least
++  0.1% larger than avail_in plus 12 bytes.  If deflate does not return
++  Z_STREAM_END, then it must be called again as described above.
++
++    deflate() sets strm->adler to the adler32 checksum of all input read
++  so far (that is, total_in bytes).
++
++    deflate() may update data_type if it can make a good guess about
++  the input data type (Z_ASCII or Z_BINARY). In doubt, the data is considered
++  binary. This field is only for information purposes and does not affect
++  the compression algorithm in any manner.
++
++    deflate() returns Z_OK if some progress has been made (more input
++  processed or more output produced), Z_STREAM_END if all input has been
++  consumed and all output has been produced (only when flush is set to
++  Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example
++  if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible
++  (for example avail_in or avail_out was zero).
++*/
++
++
++ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm));
++/*
++     All dynamically allocated data structures for this stream are freed.
++   This function discards any unprocessed input and does not flush any
++   pending output.
++
++     deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the
++   stream state was inconsistent, Z_DATA_ERROR if the stream was freed
++   prematurely (some input or output was discarded). In the error case,
++   msg may be set but then points to a static string (which must not be
++   deallocated).
++*/
++
++
++/* 
++ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm));
++
++     Initializes the internal stream state for decompression. The fields
++   next_in, avail_in, zalloc, zfree and opaque must be initialized before by
++   the caller. If next_in is not Z_NULL and avail_in is large enough (the exact
++   value depends on the compression method), inflateInit determines the
++   compression method from the zlib header and allocates all data structures
++   accordingly; otherwise the allocation will be deferred to the first call of
++   inflate.  If zalloc and zfree are set to Z_NULL, inflateInit updates them to
++   use default allocation functions.
++
++     inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough
++   memory, Z_VERSION_ERROR if the zlib library version is incompatible with the
++   version assumed by the caller.  msg is set to null if there is no error
++   message. inflateInit does not perform any decompression apart from reading
++   the zlib header if present: this will be done by inflate().  (So next_in and
++   avail_in may be modified, but next_out and avail_out are unchanged.)
++*/
++
++
++ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
++/*
++    inflate decompresses as much data as possible, and stops when the input
++  buffer becomes empty or the output buffer becomes full. It may some
++  introduce some output latency (reading input without producing any output)
++  except when forced to flush.
++
++  The detailed semantics are as follows. inflate performs one or both of the
++  following actions:
++
++  - Decompress more input starting at next_in and update next_in and avail_in
++    accordingly. If not all input can be processed (because there is not
++    enough room in the output buffer), next_in is updated and processing
++    will resume at this point for the next call of inflate().
++
++  - Provide more output starting at next_out and update next_out and avail_out
++    accordingly.  inflate() provides as much output as possible, until there
++    is no more input data or no more space in the output buffer (see below
++    about the flush parameter).
++
++  Before the call of inflate(), the application should ensure that at least
++  one of the actions is possible, by providing more input and/or consuming
++  more output, and updating the next_* and avail_* values accordingly.
++  The application can consume the uncompressed output when it wants, for
++  example when the output buffer is full (avail_out == 0), or after each
++  call of inflate(). If inflate returns Z_OK and with zero avail_out, it
++  must be called again after making room in the output buffer because there
++  might be more output pending.
++
++    If the parameter flush is set to Z_SYNC_FLUSH, inflate flushes as much
++  output as possible to the output buffer. The flushing behavior of inflate is
++  not specified for values of the flush parameter other than Z_SYNC_FLUSH
++  and Z_FINISH, but the current implementation actually flushes as much output
++  as possible anyway.
++
++    inflate() should normally be called until it returns Z_STREAM_END or an
++  error. However if all decompression is to be performed in a single step
++  (a single call of inflate), the parameter flush should be set to
++  Z_FINISH. In this case all pending input is processed and all pending
++  output is flushed; avail_out must be large enough to hold all the
++  uncompressed data. (The size of the uncompressed data may have been saved
++  by the compressor for this purpose.) The next operation on this stream must
++  be inflateEnd to deallocate the decompression state. The use of Z_FINISH
++  is never required, but can be used to inform inflate that a faster routine
++  may be used for the single inflate() call.
++
++     If a preset dictionary is needed at this point (see inflateSetDictionary
++  below), inflate sets strm-adler to the adler32 checksum of the
++  dictionary chosen by the compressor and returns Z_NEED_DICT; otherwise 
++  it sets strm->adler to the adler32 checksum of all output produced
++  so far (that is, total_out bytes) and returns Z_OK, Z_STREAM_END or
++  an error code as described below. At the end of the stream, inflate()
++  checks that its computed adler32 checksum is equal to that saved by the
++  compressor and returns Z_STREAM_END only if the checksum is correct.
++
++    inflate() returns Z_OK if some progress has been made (more input processed
++  or more output produced), Z_STREAM_END if the end of the compressed data has
++  been reached and all uncompressed output has been produced, Z_NEED_DICT if a
++  preset dictionary is needed at this point, Z_DATA_ERROR if the input data was
++  corrupted (input stream not conforming to the zlib format or incorrect
++  adler32 checksum), Z_STREAM_ERROR if the stream structure was inconsistent
++  (for example if next_in or next_out was NULL), Z_MEM_ERROR if there was not
++  enough memory, Z_BUF_ERROR if no progress is possible or if there was not
++  enough room in the output buffer when Z_FINISH is used. In the Z_DATA_ERROR
++  case, the application may then call inflateSync to look for a good
++  compression block.
++*/
++
++
++ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm));
++/*
++     All dynamically allocated data structures for this stream are freed.
++   This function discards any unprocessed input and does not flush any
++   pending output.
++
++     inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state
++   was inconsistent. In the error case, msg may be set but then points to a
++   static string (which must not be deallocated).
++*/
++
++                        /* Advanced functions */
++
++/*
++    The following functions are needed only in some special applications.
++*/
++
++/*   
++ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm,
++                                     int  level,
++                                     int  method,
++                                     int  windowBits,
++                                     int  memLevel,
++                                     int  strategy));
++
++     This is another version of deflateInit with more compression options. The
++   fields next_in, zalloc, zfree and opaque must be initialized before by
++   the caller.
++
++     The method parameter is the compression method. It must be Z_DEFLATED in
++   this version of the library.
++
++     The windowBits parameter is the base two logarithm of the window size
++   (the size of the history buffer).  It should be in the range 8..15 for this
++   version of the library. Larger values of this parameter result in better
++   compression at the expense of memory usage. The default value is 15 if
++   deflateInit is used instead.
++
++     The memLevel parameter specifies how much memory should be allocated
++   for the internal compression state. memLevel=1 uses minimum memory but
++   is slow and reduces compression ratio; memLevel=9 uses maximum memory
++   for optimal speed. The default value is 8. See zconf.h for total memory
++   usage as a function of windowBits and memLevel.
++
++     The strategy parameter is used to tune the compression algorithm. Use the
++   value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a
++   filter (or predictor), or Z_HUFFMAN_ONLY to force Huffman encoding only (no
++   string match).  Filtered data consists mostly of small values with a
++   somewhat random distribution. In this case, the compression algorithm is
++   tuned to compress them better. The effect of Z_FILTERED is to force more
++   Huffman coding and less string matching; it is somewhat intermediate
++   between Z_DEFAULT and Z_HUFFMAN_ONLY. The strategy parameter only affects
++   the compression ratio but not the correctness of the compressed output even
++   if it is not set appropriately.
++
++      deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
++   memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid
++   method). msg is set to null if there is no error message.  deflateInit2 does
++   not perform any compression: this will be done by deflate().
++*/
++                            
++ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm,
++                                             const Bytef *dictionary,
++                                             uInt  dictLength));
++/*
++     Initializes the compression dictionary from the given byte sequence
++   without producing any compressed output. This function must be called
++   immediately after deflateInit, deflateInit2 or deflateReset, before any
++   call of deflate. The compressor and decompressor must use exactly the same
++   dictionary (see inflateSetDictionary).
++
++     The dictionary should consist of strings (byte sequences) that are likely
++   to be encountered later in the data to be compressed, with the most commonly
++   used strings preferably put towards the end of the dictionary. Using a
++   dictionary is most useful when the data to be compressed is short and can be
++   predicted with good accuracy; the data can then be compressed better than
++   with the default empty dictionary.
++
++     Depending on the size of the compression data structures selected by
++   deflateInit or deflateInit2, a part of the dictionary may in effect be
++   discarded, for example if the dictionary is larger than the window size in
++   deflate or deflate2. Thus the strings most likely to be useful should be
++   put at the end of the dictionary, not at the front.
++
++     Upon return of this function, strm->adler is set to the Adler32 value
++   of the dictionary; the decompressor may later use this value to determine
++   which dictionary has been used by the compressor. (The Adler32 value
++   applies to the whole dictionary even if only a subset of the dictionary is
++   actually used by the compressor.)
++
++     deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a
++   parameter is invalid (such as NULL dictionary) or the stream state is
++   inconsistent (for example if deflate has already been called for this stream
++   or if the compression method is bsort). deflateSetDictionary does not
++   perform any compression: this will be done by deflate().
++*/
++
++ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest,
++                                    z_streamp source));
++/*
++     Sets the destination stream as a complete copy of the source stream.
++
++     This function can be useful when several compression strategies will be
++   tried, for example when there are several ways of pre-processing the input
++   data with a filter. The streams that will be discarded should then be freed
++   by calling deflateEnd.  Note that deflateCopy duplicates the internal
++   compression state which can be quite large, so this strategy is slow and
++   can consume lots of memory.
++
++     deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not
++   enough memory, Z_STREAM_ERROR if the source stream state was inconsistent
++   (such as zalloc being NULL). msg is left unchanged in both source and
++   destination.
++*/
++
++ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm));
++/*
++     This function is equivalent to deflateEnd followed by deflateInit,
++   but does not free and reallocate all the internal compression state.
++   The stream will keep the same compression level and any other attributes
++   that may have been set by deflateInit2.
++
++      deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
++   stream state was inconsistent (such as zalloc or state being NULL).
++*/
++
++ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm,
++				      int level,
++				      int strategy));
++/*
++     Dynamically update the compression level and compression strategy.  The
++   interpretation of level and strategy is as in deflateInit2.  This can be
++   used to switch between compression and straight copy of the input data, or
++   to switch to a different kind of input data requiring a different
++   strategy. If the compression level is changed, the input available so far
++   is compressed with the old level (and may be flushed); the new level will
++   take effect only at the next call of deflate().
++
++     Before the call of deflateParams, the stream state must be set as for
++   a call of deflate(), since the currently available input may have to
++   be compressed and flushed. In particular, strm->avail_out must be non-zero.
++
++     deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source
++   stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR
++   if strm->avail_out was zero.
++*/
++
++/*   
++ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm,
++                                     int  windowBits));
++
++     This is another version of inflateInit with an extra parameter. The
++   fields next_in, avail_in, zalloc, zfree and opaque must be initialized
++   before by the caller.
++
++     The windowBits parameter is the base two logarithm of the maximum window
++   size (the size of the history buffer).  It should be in the range 8..15 for
++   this version of the library. The default value is 15 if inflateInit is used
++   instead. If a compressed stream with a larger window size is given as
++   input, inflate() will return with the error code Z_DATA_ERROR instead of
++   trying to allocate a larger window.
++
++      inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
++   memory, Z_STREAM_ERROR if a parameter is invalid (such as a negative
++   memLevel). msg is set to null if there is no error message.  inflateInit2
++   does not perform any decompression apart from reading the zlib header if
++   present: this will be done by inflate(). (So next_in and avail_in may be
++   modified, but next_out and avail_out are unchanged.)
++*/
++
++ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm,
++                                             const Bytef *dictionary,
++                                             uInt  dictLength));
++/*
++     Initializes the decompression dictionary from the given uncompressed byte
++   sequence. This function must be called immediately after a call of inflate
++   if this call returned Z_NEED_DICT. The dictionary chosen by the compressor
++   can be determined from the Adler32 value returned by this call of
++   inflate. The compressor and decompressor must use exactly the same
++   dictionary (see deflateSetDictionary).
++
++     inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a
++   parameter is invalid (such as NULL dictionary) or the stream state is
++   inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the
++   expected one (incorrect Adler32 value). inflateSetDictionary does not
++   perform any decompression: this will be done by subsequent calls of
++   inflate().
++*/
++
++ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm));
++/* 
++    Skips invalid compressed data until a full flush point (see above the
++  description of deflate with Z_FULL_FLUSH) can be found, or until all
++  available input is skipped. No output is provided.
++
++    inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR
++  if no more input was provided, Z_DATA_ERROR if no flush point has been found,
++  or Z_STREAM_ERROR if the stream structure was inconsistent. In the success
++  case, the application may save the current current value of total_in which
++  indicates where valid compressed data was found. In the error case, the
++  application may repeatedly call inflateSync, providing more input each time,
++  until success or end of the input data.
++*/
++
++ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm));
++/*
++     This function is equivalent to inflateEnd followed by inflateInit,
++   but does not free and reallocate all the internal decompression state.
++   The stream will keep attributes that may have been set by inflateInit2.
++
++      inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
++   stream state was inconsistent (such as zalloc or state being NULL).
++*/
++
++
++                        /* utility functions */
++
++/*
++     The following utility functions are implemented on top of the
++   basic stream-oriented functions. To simplify the interface, some
++   default options are assumed (compression level and memory usage,
++   standard memory allocation functions). The source code of these
++   utility functions can easily be modified if you need special options.
++*/
++
++ZEXTERN int ZEXPORT compress OF((Bytef *dest,   uLongf *destLen,
++                                 const Bytef *source, uLong sourceLen));
++/*
++     Compresses the source buffer into the destination buffer.  sourceLen is
++   the byte length of the source buffer. Upon entry, destLen is the total
++   size of the destination buffer, which must be at least 0.1% larger than
++   sourceLen plus 12 bytes. Upon exit, destLen is the actual size of the
++   compressed buffer.
++     This function can be used to compress a whole file at once if the
++   input file is mmap'ed.
++     compress returns Z_OK if success, Z_MEM_ERROR if there was not
++   enough memory, Z_BUF_ERROR if there was not enough room in the output
++   buffer.
++*/
++
++ZEXTERN int ZEXPORT compress2 OF((Bytef *dest,   uLongf *destLen,
++                                  const Bytef *source, uLong sourceLen,
++                                  int level));
++/*
++     Compresses the source buffer into the destination buffer. The level
++   parameter has the same meaning as in deflateInit.  sourceLen is the byte
++   length of the source buffer. Upon entry, destLen is the total size of the
++   destination buffer, which must be at least 0.1% larger than sourceLen plus
++   12 bytes. Upon exit, destLen is the actual size of the compressed buffer.
++
++     compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
++   memory, Z_BUF_ERROR if there was not enough room in the output buffer,
++   Z_STREAM_ERROR if the level parameter is invalid.
++*/
++
++ZEXTERN int ZEXPORT uncompress OF((Bytef *dest,   uLongf *destLen,
++                                   const Bytef *source, uLong sourceLen));
++/*
++     Decompresses the source buffer into the destination buffer.  sourceLen is
++   the byte length of the source buffer. Upon entry, destLen is the total
++   size of the destination buffer, which must be large enough to hold the
++   entire uncompressed data. (The size of the uncompressed data must have
++   been saved previously by the compressor and transmitted to the decompressor
++   by some mechanism outside the scope of this compression library.)
++   Upon exit, destLen is the actual size of the compressed buffer.
++     This function can be used to decompress a whole file at once if the
++   input file is mmap'ed.
++
++     uncompress returns Z_OK if success, Z_MEM_ERROR if there was not
++   enough memory, Z_BUF_ERROR if there was not enough room in the output
++   buffer, or Z_DATA_ERROR if the input data was corrupted.
++*/
++
++
++typedef voidp gzFile;
++
++ZEXTERN gzFile ZEXPORT gzopen  OF((const char *path, const char *mode));
++/*
++     Opens a gzip (.gz) file for reading or writing. The mode parameter
++   is as in fopen ("rb" or "wb") but can also include a compression level
++   ("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for
++   Huffman only compression as in "wb1h". (See the description
++   of deflateInit2 for more information about the strategy parameter.)
++
++     gzopen can be used to read a file which is not in gzip format; in this
++   case gzread will directly read from the file without decompression.
++
++     gzopen returns NULL if the file could not be opened or if there was
++   insufficient memory to allocate the (de)compression state; errno
++   can be checked to distinguish the two cases (if errno is zero, the
++   zlib error is Z_MEM_ERROR).  */
++
++ZEXTERN gzFile ZEXPORT gzdopen  OF((int fd, const char *mode));
++/*
++     gzdopen() associates a gzFile with the file descriptor fd.  File
++   descriptors are obtained from calls like open, dup, creat, pipe or
++   fileno (in the file has been previously opened with fopen).
++   The mode parameter is as in gzopen.
++     The next call of gzclose on the returned gzFile will also close the
++   file descriptor fd, just like fclose(fdopen(fd), mode) closes the file
++   descriptor fd. If you want to keep fd open, use gzdopen(dup(fd), mode).
++     gzdopen returns NULL if there was insufficient memory to allocate
++   the (de)compression state.
++*/
++
++ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy));
++/*
++     Dynamically update the compression level or strategy. See the description
++   of deflateInit2 for the meaning of these parameters.
++     gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not
++   opened for writing.
++*/
++
++ZEXTERN int ZEXPORT    gzread  OF((gzFile file, voidp buf, unsigned len));
++/*
++     Reads the given number of uncompressed bytes from the compressed file.
++   If the input file was not in gzip format, gzread copies the given number
++   of bytes into the buffer.
++     gzread returns the number of uncompressed bytes actually read (0 for
++   end of file, -1 for error). */
++
++ZEXTERN int ZEXPORT    gzwrite OF((gzFile file, 
++				   const voidp buf, unsigned len));
++/*
++     Writes the given number of uncompressed bytes into the compressed file.
++   gzwrite returns the number of uncompressed bytes actually written
++   (0 in case of error).
++*/
++
++ZEXTERN int ZEXPORTVA   gzprintf OF((gzFile file, const char *format, ...));
++/*
++     Converts, formats, and writes the args to the compressed file under
++   control of the format string, as in fprintf. gzprintf returns the number of
++   uncompressed bytes actually written (0 in case of error).
++*/
++
++ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s));
++/*
++      Writes the given null-terminated string to the compressed file, excluding
++   the terminating null character.
++      gzputs returns the number of characters written, or -1 in case of error.
++*/
++
++ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len));
++/*
++      Reads bytes from the compressed file until len-1 characters are read, or
++   a newline character is read and transferred to buf, or an end-of-file
++   condition is encountered.  The string is then terminated with a null
++   character.
++      gzgets returns buf, or Z_NULL in case of error.
++*/
++
++ZEXTERN int ZEXPORT    gzputc OF((gzFile file, int c));
++/*
++      Writes c, converted to an unsigned char, into the compressed file.
++   gzputc returns the value that was written, or -1 in case of error.
++*/
++
++ZEXTERN int ZEXPORT    gzgetc OF((gzFile file));
++/*
++      Reads one byte from the compressed file. gzgetc returns this byte
++   or -1 in case of end of file or error.
++*/
++
++ZEXTERN int ZEXPORT    gzflush OF((gzFile file, int flush));
++/*
++     Flushes all pending output into the compressed file. The parameter
++   flush is as in the deflate() function. The return value is the zlib
++   error number (see function gzerror below). gzflush returns Z_OK if
++   the flush parameter is Z_FINISH and all output could be flushed.
++     gzflush should be called only when strictly necessary because it can
++   degrade compression.
++*/
++
++ZEXTERN z_off_t ZEXPORT    gzseek OF((gzFile file,
++				      z_off_t offset, int whence));
++/* 
++      Sets the starting position for the next gzread or gzwrite on the
++   given compressed file. The offset represents a number of bytes in the
++   uncompressed data stream. The whence parameter is defined as in lseek(2);
++   the value SEEK_END is not supported.
++     If the file is opened for reading, this function is emulated but can be
++   extremely slow. If the file is opened for writing, only forward seeks are
++   supported; gzseek then compresses a sequence of zeroes up to the new
++   starting position.
++
++      gzseek returns the resulting offset location as measured in bytes from
++   the beginning of the uncompressed stream, or -1 in case of error, in
++   particular if the file is opened for writing and the new starting position
++   would be before the current position.
++*/
++
++ZEXTERN int ZEXPORT    gzrewind OF((gzFile file));
++/*
++     Rewinds the given file. This function is supported only for reading.
++
++   gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET)
++*/
++
++ZEXTERN z_off_t ZEXPORT    gztell OF((gzFile file));
++/*
++     Returns the starting position for the next gzread or gzwrite on the
++   given compressed file. This position represents a number of bytes in the
++   uncompressed data stream.
++
++   gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR)
++*/
++
++ZEXTERN int ZEXPORT gzeof OF((gzFile file));
++/*
++     Returns 1 when EOF has previously been detected reading the given
++   input stream, otherwise zero.
++*/
++
++ZEXTERN int ZEXPORT    gzclose OF((gzFile file));
++/*
++     Flushes all pending output if necessary, closes the compressed file
++   and deallocates all the (de)compression state. The return value is the zlib
++   error number (see function gzerror below).
++*/
++
++ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum));
++/*
++     Returns the error message for the last error which occurred on the
++   given compressed file. errnum is set to zlib error number. If an
++   error occurred in the file system and not in the compression library,
++   errnum is set to Z_ERRNO and the application may consult errno
++   to get the exact error