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