as400/zlib.inc

   1       *  ZLIB.INC - Interface to the general purpose compression library
   2       *
   3       *  ILE RPG400 version by Patrick Monnerat, DATASPHERE.
   4       *  Version 1.2.0.7
   5       *
   6       *
   7       *  WARNING:
   8       *     Procedures inflateInit(), inflateInit2(), deflateInit(),
   9       *         deflateInit2() and inflateBackInit() need to be called with
  10       *         two additional arguments:
  11       *         the package version string and the stream control structure.
  12       *         size. This is needed because RPG lacks some macro feature.
  13       *         Call these procedures as:
  14       *             inflateInit(...: ZLIB_VERSION: %size(z_stream))
  15       *
  16       /if not defined(ZLIB_H_)
  17       /define ZLIB_H_
  18       *
  19       **************************************************************************
  20       *                               Constants
  21       **************************************************************************
  22       *
  23      D ZLIB_VERSION    C                   '1.2.0.8'                            Header's version
  24      D ZLIB_VERNUM     C                   X'1208'
  25       *
  26      D Z_NO_FLUSH      C                   0
  27      D Z_SYNC_FLUSH    C                   2
  28      D Z_FULL_FLUSH    C                   3
  29      D Z_FINISH        C                   4
  30      D Z_BLOCK         C                   5
  31       *
  32      D Z_OK            C                   0
  33      D Z_STREAM_END    C                   1
  34      D Z_NEED_DICT     C                   2
  35      D Z_ERRNO         C                   -1
  36      D Z_STREAM_ERROR  C                   -2
  37      D Z_DATA_ERROR    C                   -3
  38      D Z_MEM_ERROR     C                   -4
  39      D Z_BUF_ERROR     C                   -5
  40      DZ_VERSION_ERROR  C                   -6
  41       *
  42      D Z_NO_COMPRESSION...
  43      D                 C                   0
  44      D Z_BEST_SPEED    C                   1
  45      D Z_BEST_COMPRESSION...
  46      D                 C                   9
  47      D Z_DEFAULT_COMPRESSION...
  48      D                 C                   -1
  49       *
  50      D Z_FILTERED      C                   1
  51      D Z_HUFFMAN_ONLY  C                   2
  52      D Z_RLE           C                   3
  53      D Z_DEFAULT_STRATEGY...
  54      D                 C                   0
  55       *
  56      D Z_BINARY        C                   0
  57      D Z_ASCII         C                   1
  58      D Z_UNKNOWN       C                   2
  59       *
  60      D Z_DEFLATED      C                   8
  61       *
  62      D Z_NULL          C                   0
  63       *
  64       **************************************************************************
  65       *                                 Types
  66       **************************************************************************
  67       *
  68      D z_streamp       S               *                                        Stream struct ptr
  69      D gzFile          S               *                                        File pointer
  70      D z_off_t         S             10i 0                                      Stream offsets
  71       *
  72       **************************************************************************
  73       *                               Structures
  74       **************************************************************************
  75       *
  76       *  The GZIP encode/decode stream support structure.
  77       *
  78      D z_stream        DS                  align based(z_streamp)
  79      D  zs_next_in                     *                                        Next input byte
  80      D  zs_avail_in                  10U 0                                      Byte cnt at next_in
  81      D  zs_total_in                  10U 0                                      Total bytes read
  82      D  zs_next_out                    *                                        Output buffer ptr
  83      D  zs_avail_out                 10U 0                                      Room left @ next_out
  84      D  zs_total_out                 10U 0                                      Total bytes written
  85      D  zs_msg                         *                                        Last errmsg or null
  86      D  zs_state                       *                                        Internal state
  87      D  zs_zalloc                      *   procptr                              Int. state allocator
  88      D  zs_free                        *   procptr                              Int. state dealloc.
  89      D  zs_opaque                      *                                        Private alloc. data
  90      D  zs_data_type                 10i 0                                      ASC/BIN best guess
  91      D  zs_adler                     10u 0                                      Uncompr. adler32 val
  92      D                               10U 0                                      Reserved
  93      D                               10U 0                                      Ptr. alignment
  94       *
  95       **************************************************************************
  96       *                     Utility function prototypes
  97       **************************************************************************
  98       *
  99      D compress        PR            10I 0 extproc('compress')
 100      D  dest                      32767    options(*varsize)                    Destination buffer
 101      D  destLen                      10U 0                                      Destination length
 102      D  source                    32767    const options(*varsize)              Source buffer
 103      D  sourceLen                    10u 0 value                                Source length
 104       *
 105      D compress2       PR            10I 0 extproc('compress2')
 106      D  dest                      32767    options(*varsize)                    Destination buffer
 107      D  destLen                      10U 0                                      Destination length
 108      D  source                    32767    const options(*varsize)              Source buffer
 109      D  sourceLen                    10U 0 value                                Source length
 110      D  level                        10I 0 value                                Compression level
 111       *
 112      D compressBound   PR            10U 0 extproc('compressBound')
 113      D  sourceLen                    10U 0 value
 114       *
 115      D uncompress      PR            10I 0 extproc('uncompress')
 116      D  dest                      32767    options(*varsize)                    Destination buffer
 117      D  destLen                      10U 0                                      Destination length
 118      D  source                    32767    const options(*varsize)              Source buffer
 119      D  sourceLen                    10U 0 value                                Source length
 120       *
 121      D gzopen          PR                  extproc('gzopen')
 122      D                                     like(gzFile)
 123      D  path                           *   value options(*string)               File pathname
 124      D  mode                           *   value options(*string)               Open mode
 125       *
 126      D gzdopen         PR                  extproc('gzdopen')
 127      D                                     like(gzFile)
 128      D  fd                           10i 0 value                                File descriptor
 129      D  mode                           *   value options(*string)               Open mode
 130       *
 131      D gzsetparams     PR            10I 0 extproc('gzsetparams')
 132      D  file                               value like(gzFile)                   File pointer
 133      D  level                        10I 0 value
 134      D  strategy                     10i 0 value
 135       *
 136      D gzread          PR            10I 0 extproc('gzread')
 137      D  file                               value like(gzFile)                   File pointer
 138      D  buf                       32767    options(*varsize)                    Buffer
 139      D  len                          10u 0 value                                Buffer length
 140       *
 141      D gzwrite         PR            10I 0 extproc('gzwrite')
 142      D  file                               value like(gzFile)                   File pointer
 143      D  buf                       32767    const options(*varsize)              Buffer
 144      D  len                          10u 0 value                                Buffer length
 145       *
 146      D gzputs          PR            10I 0 extproc('gzputs')
 147      D  file                               value like(gzFile)                   File pointer
 148      D  s                              *   value options(*string)               String to output
 149       *
 150      D gzgets          PR              *   extproc('gzgets')
 151      D  file                               value like(gzFile)                   File pointer
 152      D  buf                       32767    options(*varsize)                    Read buffer
 153      D  len                          10i 0 value                                Buffer length
 154       *
 155      D gzflush         PR            10i 0 extproc('gzflush')
 156      D  file                               value like(gzFile)                   File pointer
 157      D  flush                        10I 0 value                                Type of flush
 158       *
 159      D gzseek          PR                  extproc('gzseek')
 160      D                                     like(z_off_t)
 161      D  file                               value like(gzFile)                   File pointer
 162      D  offset                             value like(z_off_t)                  Offset
 163      D  whence                       10i 0 value                                Origin
 164       *
 165      D gzrewind        PR            10i 0 extproc('gzrewind')
 166      D  file                               value like(gzFile)                   File pointer
 167       *
 168      D gztell          PR                  extproc('gztell')
 169      D                                     like(z_off_t)
 170      D  file                               value like(gzFile)                   File pointer
 171       *
 172      D gzeof           PR            10i 0 extproc('gzeof')
 173      D  file                               value like(gzFile)                   File pointer
 174       *
 175      D gzclose         PR            10i 0 extproc('gzclose')
 176      D  file                               value like(gzFile)                   File pointer
 177       *
 178      D gzerror         PR              *   extproc('gzerror')                   Error string
 179      D  file                               value like(gzFile)                   File pointer
 180      D  errnum                       10I 0                                      Error code
 181       *
 182      D gzclearerr      PR                  extproc('gzclearerr')
 183      D  file                               value like(gzFile)                   File pointer
 184       *
 185       **************************************************************************
 186       *                        Basic function prototypes
 187       **************************************************************************
 188       *
 189      D zlibVersion     PR              *   extproc('zlibVersion')               Version string
 190       *
 191      D deflateInit     PR            10I 0 extproc('deflateInit_')              Init. compression
 192      D  strm                               like(z_stream)                       Compression stream
 193      D  level                        10I 0 value                                Compression level
 194      D  version                        *   value options(*string)               Version string
 195      D  stream_size                  10i 0 value                                Stream struct. size
 196       *
 197      D deflate         PR            10I 0 extproc('deflate')                   Compress data
 198      D  strm                               like(z_stream)                       Compression stream
 199      D  flush                        10I 0 value                                Flush type required
 200       *
 201      D deflateEnd      PR            10I 0 extproc('deflateEnd')                Termin. compression
 202      D  strm                               like(z_stream)                       Compression stream
 203       *
 204      D inflateInit     PR            10I 0 extproc('inflateInit_')              Init. expansion
 205      D  strm                               like(z_stream)                       Expansion stream
 206      D  version                        *   value options(*string)               Version string
 207      D  stream_size                  10i 0 value                                Stream struct. size
 208       *
 209      D inflate         PR            10I 0 extproc('inflate')                   Expand data
 210      D  strm                               like(z_stream)                       Expansion stream
 211      D  flush                        10I 0 value                                Flush type required
 212       *
 213      D inflateEnd      PR            10I 0 extproc('inflateEnd')                Termin. expansion
 214      D  strm                               like(z_stream)                       Expansion stream
 215       *
 216       **************************************************************************
 217       *                        Advanced function prototypes
 218       **************************************************************************
 219       *
 220      D deflateInit2    PR            10I 0 extproc('deflateInit2_')             Init. compression
 221      D  strm                               like(z_stream)                       Compression stream
 222      D  level                        10I 0 value                                Compression level
 223      D  method                       10I 0 value                                Compression method
 224      D  windowBits                   10I 0 value                                log2(window size)
 225      D  memLevel                     10I 0 value                                Mem/cmpress tradeoff
 226      D  strategy                     10I 0 value                                Compression stategy
 227      D  version                        *   value options(*string)               Version string
 228      D  stream_size                  10i 0 value                                Stream struct. size
 229       *
 230      D deflateSetDictionary...
 231      D                 PR            10I 0 extproc('deflateSetDictionary')      Init. dictionary
 232      D  strm                               like(z_stream)                       Compression stream
 233      D  dictionary                32767    const options(*varsize)              Dictionary bytes
 234      D  dictLength                   10U 0 value                                Dictionary length
 235       *
 236      D deflateCopy     PR            10I 0 extproc('deflateCopy')               Compress strm 2 strm
 237      D  dest                               like(z_stream)                       Destination stream
 238      D  source                             like(z_stream)                       Source stream
 239       *
 240      D deflateReset    PR            10I 0 extproc('deflateReset')              End and init. stream
 241      D  strm                               like(z_stream)                       Compression stream
 242       *
 243      D deflateParams   PR            10I 0 extproc('deflateParams')             Change level & strat
 244      D  strm                               like(z_stream)                       Compression stream
 245      D  level                        10I 0 value                                Compression level
 246      D  strategy                     10I 0 value                                Compression stategy
 247       *
 248      D deflateBound    PR            10U 0 extproc('deflateBound')              Change level & strat
 249      D  strm                               like(z_stream)                       Compression stream
 250      D  sourcelen                    10U 0 value                                Compression level
 251       *
 252      D deflatePrime    PR            10I 0 extproc('deflatePrime')              Change level & strat
 253      D  strm                               like(z_stream)                       Compression stream
 254      D  bits                         10I 0 value                                Number of bits to insert
 255      D  value                        10I 0 value                                Bits to insert
 256       *
 257      D inflateInit2    PR            10I 0 extproc('inflateInit2_')             Init. expansion
 258      D  strm                               like(z_stream)                       Expansion stream
 259      D  windowBits                   10I 0 value                                log2(window size)
 260      D  version                        *   value options(*string)               Version string
 261      D  stream_size                  10i 0 value                                Stream struct. size
 262       *
 263      D inflateSetDictionary...
 264      D                 PR            10I 0 extproc('inflateSetDictionary')      Init. dictionary
 265      D  strm                               like(z_stream)                       Expansion stream
 266      D  dictionary                32767    const options(*varsize)              Dictionary bytes
 267      D  dictLength                   10U 0 value                                Dictionary length
 268       *
 269      D inflateSync     PR            10I 0 extproc('inflateSync')               Sync. expansion
 270      D  strm                               like(z_stream)                       Expansion stream
 271       *
 272      D inflateCopy     PR            10I 0 extproc('inflateCopy')
 273      D  dest                               like(z_stream)                       Destination stream
 274      D  source                             like(z_stream)                       Source stream
 275       *
 276      D inflateReset    PR            10I 0 extproc('inflateReset')              End and init. stream
 277      D  strm                               like(z_stream)                       Expansion stream
 278       *
 279      D inflateBackInit...
 280      D                 PR            10I 0 extproc('inflateBackInit_')
 281      D  strm                               like(z_stream)                       Expansion stream
 282      D  windowBits                   10I 0 value                                Log2(buffer size)
 283      D  window                    32767    options(*varsize)                    Buffer
 284      D  version                        *   value options(*string)               Version string
 285      D  stream_size                  10i 0 value                                Stream struct. size
 286       *
 287      D inflateBack     PR            10I 0 extproc('inflateBack')
 288      D  strm                               like(z_stream)                       Expansion stream
 289      D  in                             *   value procptr                        Input function
 290      D  in_desc                        *   value                                Input descriptor
 291      D  out                            *   value procptr                        Output function
 292      D  out_desc                       *   value                                Output descriptor
 293       *
 294      D inflateBackEnd  PR            10I 0 extproc('inflateBackEnd')
 295      D  strm                               like(z_stream)                       Expansion stream
 296       *
 297      D zlibCompileFlags...
 298      D                 PR            10U 0 extproc('zlibCompileFlags')
 299       *
 300       **************************************************************************
 301       *                        Checksum function prototypes
 302       **************************************************************************
 303       *
 304      D adler32         PR            10U 0 extproc('adler32')                   New checksum
 305      D  adler                        10U 0 value                                Old checksum
 306      D  buf                       32767    const options(*varsize)              Bytes to accumulate
 307      D  len                          10U 0 value                                Buffer length
 308       *
 309      D crc32           PR            10U 0 extproc('crc32')                     New checksum
 310      D  crc                          10U 0 value                                Old checksum
 311      D  buf                       32767    const options(*varsize)              Bytes to accumulate
 312      D  len                          10U 0 value                                Buffer length
 313       *
 314       **************************************************************************
 315       *                     Miscellaneous function prototypes
 316       **************************************************************************
 317       *
 318      D zError          PR              *   extproc('zError')                    Error string
 319      D  err                          10I 0 value                                Error code
 320       *
 321      D inflateSyncPoint...
 322      D                 PR            10I 0 extproc('inflateSyncPoint')
 323      D  strm                               like(z_stream)                       Expansion stream
 324       *
 325      D get_crc_table   PR              *   extproc('get_crc_table')             Ptr to ulongs
 326       *
 327       /endif