| 1 | * ZLIB.INC - Interface to the general purpose compression library
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| 2 | *
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| 3 | * ILE RPG400 version by Patrick Monnerat, DATASPHERE.
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| 4 | * Version 1.2.3
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| 5 | *
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| 6 | *
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| 7 | * WARNING:
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| 8 | * Procedures inflateInit(), inflateInit2(), deflateInit(),
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| 9 | * deflateInit2() and inflateBackInit() need to be called with
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| 10 | * two additional arguments:
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| 11 | * the package version string and the stream control structure.
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| 12 | * size. This is needed because RPG lacks some macro feature.
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| 13 | * Call these procedures as:
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| 14 | * inflateInit(...: ZLIB_VERSION: %size(z_stream))
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| 15 | *
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| 16 | /if not defined(ZLIB_H_)
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| 17 | /define ZLIB_H_
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| 18 | *
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| 19 | **************************************************************************
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| 20 | * Constants
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| 21 | **************************************************************************
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| 22 | *
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| 23 | * Versioning information.
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| 24 | *
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| 25 | D ZLIB_VERSION C '1.2.3'
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| 26 | D ZLIB_VERNUM C X'1230'
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| 27 | *
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| 28 | * Other equates.
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| 29 | *
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| 30 | D Z_NO_FLUSH C 0
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| 31 | D Z_SYNC_FLUSH C 2
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| 32 | D Z_FULL_FLUSH C 3
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| 33 | D Z_FINISH C 4
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| 34 | D Z_BLOCK C 5
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| 35 | *
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| 36 | D Z_OK C 0
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| 37 | D Z_STREAM_END C 1
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| 38 | D Z_NEED_DICT C 2
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| 39 | D Z_ERRNO C -1
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| 40 | D Z_STREAM_ERROR C -2
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| 41 | D Z_DATA_ERROR C -3
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| 42 | D Z_MEM_ERROR C -4
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| 43 | D Z_BUF_ERROR C -5
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| 44 | DZ_VERSION_ERROR C -6
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| 45 | *
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| 46 | D Z_NO_COMPRESSION...
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| 47 | D C 0
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| 48 | D Z_BEST_SPEED C 1
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| 49 | D Z_BEST_COMPRESSION...
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| 50 | D C 9
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| 51 | D Z_DEFAULT_COMPRESSION...
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| 52 | D C -1
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| 53 | *
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| 54 | D Z_FILTERED C 1
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| 55 | D Z_HUFFMAN_ONLY C 2
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| 56 | D Z_RLE C 3
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| 57 | D Z_DEFAULT_STRATEGY...
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| 58 | D C 0
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| 59 | *
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| 60 | D Z_BINARY C 0
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| 61 | D Z_ASCII C 1
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| 62 | D Z_UNKNOWN C 2
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| 63 | *
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| 64 | D Z_DEFLATED C 8
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| 65 | *
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| 66 | D Z_NULL C 0
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| 67 | *
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| 68 | **************************************************************************
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| 69 | * Types
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| 70 | **************************************************************************
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| 71 | *
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| 72 | D z_streamp S * Stream struct ptr
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| 73 | D gzFile S * File pointer
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| 74 | D z_off_t S 10i 0 Stream offsets
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| 75 | *
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| 76 | **************************************************************************
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| 77 | * Structures
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| 78 | **************************************************************************
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| 79 | *
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| 80 | * The GZIP encode/decode stream support structure.
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| 81 | *
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| 82 | D z_stream DS align based(z_streamp)
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| 83 | D zs_next_in * Next input byte
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| 84 | D zs_avail_in 10U 0 Byte cnt at next_in
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| 85 | D zs_total_in 10U 0 Total bytes read
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| 86 | D zs_next_out * Output buffer ptr
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| 87 | D zs_avail_out 10U 0 Room left @ next_out
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| 88 | D zs_total_out 10U 0 Total bytes written
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| 89 | D zs_msg * Last errmsg or null
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| 90 | D zs_state * Internal state
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| 91 | D zs_zalloc * procptr Int. state allocator
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| 92 | D zs_free * procptr Int. state dealloc.
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| 93 | D zs_opaque * Private alloc. data
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| 94 | D zs_data_type 10i 0 ASC/BIN best guess
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| 95 | D zs_adler 10u 0 Uncompr. adler32 val
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| 96 | D 10U 0 Reserved
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| 97 | D 10U 0 Ptr. alignment
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| 98 | *
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| 99 | **************************************************************************
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| 100 | * Utility function prototypes
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| 101 | **************************************************************************
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| 102 | *
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| 103 | D compress PR 10I 0 extproc('compress')
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| 104 | D dest 32767 options(*varsize) Destination buffer
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| 105 | D destLen 10U 0 Destination length
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| 106 | D source 32767 const options(*varsize) Source buffer
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| 107 | D sourceLen 10u 0 value Source length
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| 108 | *
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| 109 | D compress2 PR 10I 0 extproc('compress2')
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| 110 | D dest 32767 options(*varsize) Destination buffer
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| 111 | D destLen 10U 0 Destination length
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| 112 | D source 32767 const options(*varsize) Source buffer
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| 113 | D sourceLen 10U 0 value Source length
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| 114 | D level 10I 0 value Compression level
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| 115 | *
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| 116 | D compressBound PR 10U 0 extproc('compressBound')
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| 117 | D sourceLen 10U 0 value
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| 118 | *
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| 119 | D uncompress PR 10I 0 extproc('uncompress')
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| 120 | D dest 32767 options(*varsize) Destination buffer
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| 121 | D destLen 10U 0 Destination length
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| 122 | D source 32767 const options(*varsize) Source buffer
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| 123 | D sourceLen 10U 0 value Source length
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| 124 | *
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| 125 | D gzopen PR extproc('gzopen')
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| 126 | D like(gzFile)
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| 127 | D path * value options(*string) File pathname
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| 128 | D mode * value options(*string) Open mode
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| 129 | *
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| 130 | D gzdopen PR extproc('gzdopen')
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| 131 | D like(gzFile)
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| 132 | D fd 10i 0 value File descriptor
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| 133 | D mode * value options(*string) Open mode
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| 134 | *
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| 135 | D gzsetparams PR 10I 0 extproc('gzsetparams')
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| 136 | D file value like(gzFile) File pointer
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| 137 | D level 10I 0 value
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| 138 | D strategy 10i 0 value
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| 139 | *
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| 140 | D gzread PR 10I 0 extproc('gzread')
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| 141 | D file value like(gzFile) File pointer
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| 142 | D buf 32767 options(*varsize) Buffer
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| 143 | D len 10u 0 value Buffer length
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| 144 | *
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| 145 | D gzwrite PR 10I 0 extproc('gzwrite')
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| 146 | D file value like(gzFile) File pointer
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| 147 | D buf 32767 const options(*varsize) Buffer
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| 148 | D len 10u 0 value Buffer length
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| 149 | *
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| 150 | D gzputs PR 10I 0 extproc('gzputs')
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| 151 | D file value like(gzFile) File pointer
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| 152 | D s * value options(*string) String to output
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| 153 | *
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| 154 | D gzgets PR * extproc('gzgets')
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| 155 | D file value like(gzFile) File pointer
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| 156 | D buf 32767 options(*varsize) Read buffer
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| 157 | D len 10i 0 value Buffer length
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| 158 | *
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| 159 | D gzflush PR 10i 0 extproc('gzflush')
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| 160 | D file value like(gzFile) File pointer
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| 161 | D flush 10I 0 value Type of flush
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| 162 | *
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| 163 | D gzseek PR extproc('gzseek')
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| 164 | D like(z_off_t)
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| 165 | D file value like(gzFile) File pointer
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| 166 | D offset value like(z_off_t) Offset
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| 167 | D whence 10i 0 value Origin
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| 168 | *
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| 169 | D gzrewind PR 10i 0 extproc('gzrewind')
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| 170 | D file value like(gzFile) File pointer
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| 171 | *
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| 172 | D gztell PR extproc('gztell')
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| 173 | D like(z_off_t)
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| 174 | D file value like(gzFile) File pointer
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| 175 | *
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| 176 | D gzeof PR 10i 0 extproc('gzeof')
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| 177 | D file value like(gzFile) File pointer
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| 178 | *
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| 179 | D gzclose PR 10i 0 extproc('gzclose')
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| 180 | D file value like(gzFile) File pointer
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| 181 | *
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| 182 | D gzerror PR * extproc('gzerror') Error string
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| 183 | D file value like(gzFile) File pointer
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| 184 | D errnum 10I 0 Error code
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| 185 | *
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| 186 | D gzclearerr PR extproc('gzclearerr')
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| 187 | D file value like(gzFile) File pointer
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| 188 | *
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| 189 | **************************************************************************
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| 190 | * Basic function prototypes
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| 191 | **************************************************************************
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| 192 | *
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| 193 | D zlibVersion PR * extproc('zlibVersion') Version string
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| 194 | *
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| 195 | D deflateInit PR 10I 0 extproc('deflateInit_') Init. compression
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| 196 | D strm like(z_stream) Compression stream
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| 197 | D level 10I 0 value Compression level
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| 198 | D version * value options(*string) Version string
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| 199 | D stream_size 10i 0 value Stream struct. size
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| 200 | *
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| 201 | D deflate PR 10I 0 extproc('deflate') Compress data
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| 202 | D strm like(z_stream) Compression stream
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| 203 | D flush 10I 0 value Flush type required
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| 204 | *
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| 205 | D deflateEnd PR 10I 0 extproc('deflateEnd') Termin. compression
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| 206 | D strm like(z_stream) Compression stream
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| 207 | *
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| 208 | D inflateInit PR 10I 0 extproc('inflateInit_') Init. expansion
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| 209 | D strm like(z_stream) Expansion stream
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| 210 | D version * value options(*string) Version string
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| 211 | D stream_size 10i 0 value Stream struct. size
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| 212 | *
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| 213 | D inflate PR 10I 0 extproc('inflate') Expand data
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| 214 | D strm like(z_stream) Expansion stream
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| 215 | D flush 10I 0 value Flush type required
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| 216 | *
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| 217 | D inflateEnd PR 10I 0 extproc('inflateEnd') Termin. expansion
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| 218 | D strm like(z_stream) Expansion stream
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| 219 | *
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| 220 | **************************************************************************
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| 221 | * Advanced function prototypes
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| 222 | **************************************************************************
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| 223 | *
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| 224 | D deflateInit2 PR 10I 0 extproc('deflateInit2_') Init. compression
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| 225 | D strm like(z_stream) Compression stream
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| 226 | D level 10I 0 value Compression level
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| 227 | D method 10I 0 value Compression method
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| 228 | D windowBits 10I 0 value log2(window size)
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| 229 | D memLevel 10I 0 value Mem/cmpress tradeoff
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| 230 | D strategy 10I 0 value Compression stategy
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| 231 | D version * value options(*string) Version string
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| 232 | D stream_size 10i 0 value Stream struct. size
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| 233 | *
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| 234 | D deflateSetDictionary...
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| 235 | D PR 10I 0 extproc('deflateSetDictionary') Init. dictionary
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| 236 | D strm like(z_stream) Compression stream
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| 237 | D dictionary 32767 const options(*varsize) Dictionary bytes
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| 238 | D dictLength 10U 0 value Dictionary length
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| 239 | *
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| 240 | D deflateCopy PR 10I 0 extproc('deflateCopy') Compress strm 2 strm
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| 241 | D dest like(z_stream) Destination stream
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| 242 | D source like(z_stream) Source stream
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| 243 | *
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| 244 | D deflateReset PR 10I 0 extproc('deflateReset') End and init. stream
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| 245 | D strm like(z_stream) Compression stream
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| 246 | *
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| 247 | D deflateParams PR 10I 0 extproc('deflateParams') Change level & strat
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| 248 | D strm like(z_stream) Compression stream
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| 249 | D level 10I 0 value Compression level
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| 250 | D strategy 10I 0 value Compression stategy
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| 251 | *
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| 252 | D deflateBound PR 10U 0 extproc('deflateBound') Change level & strat
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| 253 | D strm like(z_stream) Compression stream
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| 254 | D sourcelen 10U 0 value Compression level
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| 255 | *
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| 256 | D deflatePrime PR 10I 0 extproc('deflatePrime') Change level & strat
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| 257 | D strm like(z_stream) Compression stream
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| 258 | D bits 10I 0 value Number of bits to insert
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| 259 | D value 10I 0 value Bits to insert
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| 260 | *
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| 261 | D inflateInit2 PR 10I 0 extproc('inflateInit2_') Init. expansion
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| 262 | D strm like(z_stream) Expansion stream
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| 263 | D windowBits 10I 0 value log2(window size)
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| 264 | D version * value options(*string) Version string
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| 265 | D stream_size 10i 0 value Stream struct. size
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| 266 | *
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| 267 | D inflateSetDictionary...
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| 268 | D PR 10I 0 extproc('inflateSetDictionary') Init. dictionary
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| 269 | D strm like(z_stream) Expansion stream
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| 270 | D dictionary 32767 const options(*varsize) Dictionary bytes
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| 271 | D dictLength 10U 0 value Dictionary length
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| 272 | *
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| 273 | D inflateSync PR 10I 0 extproc('inflateSync') Sync. expansion
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| 274 | D strm like(z_stream) Expansion stream
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| 275 | *
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| 276 | D inflateCopy PR 10I 0 extproc('inflateCopy')
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| 277 | D dest like(z_stream) Destination stream
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| 278 | D source like(z_stream) Source stream
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| 279 | *
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| 280 | D inflateReset PR 10I 0 extproc('inflateReset') End and init. stream
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| 281 | D strm like(z_stream) Expansion stream
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| 282 | *
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| 283 | D inflateBackInit...
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| 284 | D PR 10I 0 extproc('inflateBackInit_')
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| 285 | D strm like(z_stream) Expansion stream
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| 286 | D windowBits 10I 0 value Log2(buffer size)
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| 287 | D window 32767 options(*varsize) Buffer
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| 288 | D version * value options(*string) Version string
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| 289 | D stream_size 10i 0 value Stream struct. size
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| 290 | *
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| 291 | D inflateBack PR 10I 0 extproc('inflateBack')
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| 292 | D strm like(z_stream) Expansion stream
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| 293 | D in * value procptr Input function
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| 294 | D in_desc * value Input descriptor
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| 295 | D out * value procptr Output function
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| 296 | D out_desc * value Output descriptor
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| 297 | *
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| 298 | D inflateBackEnd PR 10I 0 extproc('inflateBackEnd')
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| 299 | D strm like(z_stream) Expansion stream
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| 300 | *
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| 301 | D zlibCompileFlags...
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| 302 | D PR 10U 0 extproc('zlibCompileFlags')
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| 303 | *
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| 304 | **************************************************************************
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| 305 | * Checksum function prototypes
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| 306 | **************************************************************************
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| 307 | *
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| 308 | D adler32 PR 10U 0 extproc('adler32') New checksum
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| 309 | D adler 10U 0 value Old checksum
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| 310 | D buf 32767 const options(*varsize) Bytes to accumulate
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| 311 | D len 10U 0 value Buffer length
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| 312 | *
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| 313 | D crc32 PR 10U 0 extproc('crc32') New checksum
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| 314 | D crc 10U 0 value Old checksum
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| 315 | D buf 32767 const options(*varsize) Bytes to accumulate
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| 316 | D len 10U 0 value Buffer length
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| 317 | *
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| 318 | **************************************************************************
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| 319 | * Miscellaneous function prototypes
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| 320 | **************************************************************************
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| 321 | *
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| 322 | D zError PR * extproc('zError') Error string
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| 323 | D err 10I 0 value Error code
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| 324 | *
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| 325 | D inflateSyncPoint...
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| 326 | D PR 10I 0 extproc('inflateSyncPoint')
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| 327 | D strm like(z_stream) Expansion stream
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| 328 | *
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| 329 | D get_crc_table PR * extproc('get_crc_table') Ptr to ulongs
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| 330 | *
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| 331 | /endif
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