zlib.inc 32 KB

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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 1.2.11
  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 '1.2.11'
  26. D ZLIB_VERNUM C X'12a0'
  27. D ZLIB_VER_MAJOR C 1
  28. D ZLIB_VER_MINOR C 2
  29. D ZLIB_VER_REVISION...
  30. D C 11
  31. D ZLIB_VER_SUBREVISION...
  32. D C 0
  33. *
  34. * Other equates.
  35. *
  36. D Z_NO_FLUSH C 0
  37. D Z_PARTIAL_FLUSH...
  38. D C 1
  39. D Z_SYNC_FLUSH C 2
  40. D Z_FULL_FLUSH C 3
  41. D Z_FINISH C 4
  42. D Z_BLOCK C 5
  43. D Z_TREES C 6
  44. *
  45. D Z_OK C 0
  46. D Z_STREAM_END C 1
  47. D Z_NEED_DICT C 2
  48. D Z_ERRNO C -1
  49. D Z_STREAM_ERROR C -2
  50. D Z_DATA_ERROR C -3
  51. D Z_MEM_ERROR C -4
  52. D Z_BUF_ERROR C -5
  53. D Z_VERSION_ERROR C -6
  54. *
  55. D Z_NO_COMPRESSION...
  56. D C 0
  57. D Z_BEST_SPEED C 1
  58. D Z_BEST_COMPRESSION...
  59. D C 9
  60. D Z_DEFAULT_COMPRESSION...
  61. D C -1
  62. *
  63. D Z_FILTERED C 1
  64. D Z_HUFFMAN_ONLY C 2
  65. D Z_RLE C 3
  66. D Z_DEFAULT_STRATEGY...
  67. D C 0
  68. *
  69. D Z_BINARY C 0
  70. D Z_ASCII C 1
  71. D Z_UNKNOWN C 2
  72. *
  73. D Z_DEFLATED C 8
  74. *
  75. D Z_NULL C 0
  76. *
  77. **************************************************************************
  78. * Types
  79. **************************************************************************
  80. *
  81. D z_streamp S * Stream struct ptr
  82. D gzFile S * File pointer
  83. D gz_headerp S *
  84. D z_off_t S 10i 0 Stream offsets
  85. D z_off64_t S 20i 0 Stream offsets
  86. *
  87. **************************************************************************
  88. * Structures
  89. **************************************************************************
  90. *
  91. * The GZIP encode/decode stream support structure.
  92. *
  93. D z_stream DS align based(z_streamp)
  94. D zs_next_in * Next input byte
  95. D zs_avail_in 10U 0 Byte cnt at next_in
  96. D zs_total_in 10U 0 Total bytes read
  97. D zs_next_out * Output buffer ptr
  98. D zs_avail_out 10U 0 Room left @ next_out
  99. D zs_total_out 10U 0 Total bytes written
  100. D zs_msg * Last errmsg or null
  101. D zs_state * Internal state
  102. D zs_zalloc * procptr Int. state allocator
  103. D zs_free * procptr Int. state dealloc.
  104. D zs_opaque * Private alloc. data
  105. D zs_data_type 10i 0 ASC/BIN best guess
  106. D zs_adler 10u 0 Uncompr. adler32 val
  107. D 10U 0 Reserved
  108. D 10U 0 Ptr. alignment
  109. *
  110. **************************************************************************
  111. * Utility function prototypes
  112. **************************************************************************
  113. *
  114. D compress PR 10I 0 extproc('compress')
  115. D dest 65535 options(*varsize) Destination buffer
  116. D destLen 10U 0 Destination length
  117. D source 65535 const options(*varsize) Source buffer
  118. D sourceLen 10u 0 value Source length
  119. *
  120. D compress2 PR 10I 0 extproc('compress2')
  121. D dest 65535 options(*varsize) Destination buffer
  122. D destLen 10U 0 Destination length
  123. D source 65535 const options(*varsize) Source buffer
  124. D sourceLen 10U 0 value Source length
  125. D level 10I 0 value Compression level
  126. *
  127. D compressBound PR 10U 0 extproc('compressBound')
  128. D sourceLen 10U 0 value
  129. *
  130. D uncompress PR 10I 0 extproc('uncompress')
  131. D dest 65535 options(*varsize) Destination buffer
  132. D destLen 10U 0 Destination length
  133. D source 65535 const options(*varsize) Source buffer
  134. D sourceLen 10U 0 value Source length
  135. *
  136. D uncompress2 PR 10I 0 extproc('uncompress2')
  137. D dest 65535 options(*varsize) Destination buffer
  138. D destLen 10U 0 Destination length
  139. D source 65535 const options(*varsize) Source buffer
  140. D sourceLen 10U 0 Source length
  141. *
  142. /if not defined(LARGE_FILES)
  143. D gzopen PR extproc('gzopen')
  144. D like(gzFile)
  145. D path * value options(*string) File pathname
  146. D mode * value options(*string) Open mode
  147. /else
  148. D gzopen PR extproc('gzopen64')
  149. D like(gzFile)
  150. D path * value options(*string) File pathname
  151. D mode * value options(*string) Open mode
  152. *
  153. D gzopen64 PR extproc('gzopen64')
  154. D like(gzFile)
  155. D path * value options(*string) File pathname
  156. D mode * value options(*string) Open mode
  157. /endif
  158. *
  159. D gzdopen PR extproc('gzdopen')
  160. D like(gzFile)
  161. D fd 10I 0 value File descriptor
  162. D mode * value options(*string) Open mode
  163. *
  164. D gzbuffer PR 10I 0 extproc('gzbuffer')
  165. D file value like(gzFile) File pointer
  166. D size 10U 0 value
  167. *
  168. D gzsetparams PR 10I 0 extproc('gzsetparams')
  169. D file value like(gzFile) File pointer
  170. D level 10I 0 value
  171. D strategy 10I 0 value
  172. *
  173. D gzread PR 10I 0 extproc('gzread')
  174. D file value like(gzFile) File pointer
  175. D buf 65535 options(*varsize) Buffer
  176. D len 10u 0 value Buffer length
  177. *
  178. D gzfread PR 20I 0 extproc('gzfread')
  179. D buf 65535 options(*varsize) Buffer
  180. D size 20u 0 value Buffer length
  181. D nitems 20u 0 value Buffer length
  182. D file value like(gzFile) File pointer
  183. *
  184. D gzwrite PR 10I 0 extproc('gzwrite')
  185. D file value like(gzFile) File pointer
  186. D buf 65535 const options(*varsize) Buffer
  187. D len 10u 0 value Buffer length
  188. *
  189. D gzfwrite PR 20I 0 extproc('gzfwrite')
  190. D buf 65535 options(*varsize) Buffer
  191. D size 20u 0 value Buffer length
  192. D nitems 20u 0 value Buffer length
  193. D file value like(gzFile) File pointer
  194. *
  195. D gzputs PR 10I 0 extproc('gzputs')
  196. D file value like(gzFile) File pointer
  197. D s * value options(*string) String to output
  198. *
  199. D gzgets PR * extproc('gzgets')
  200. D file value like(gzFile) File pointer
  201. D buf 65535 options(*varsize) Read buffer
  202. D len 10i 0 value Buffer length
  203. *
  204. D gzputc PR 10i 0 extproc('gzputc')
  205. D file value like(gzFile) File pointer
  206. D c 10I 0 value Character to write
  207. *
  208. D gzgetc PR 10i 0 extproc('gzgetc')
  209. D file value like(gzFile) File pointer
  210. *
  211. D gzgetc_ PR 10i 0 extproc('gzgetc_')
  212. D file value like(gzFile) File pointer
  213. *
  214. D gzungetc PR 10i 0 extproc('gzungetc')
  215. D c 10I 0 value Character to push
  216. D file value like(gzFile) File pointer
  217. *
  218. D gzflush PR 10i 0 extproc('gzflush')
  219. D file value like(gzFile) File pointer
  220. D flush 10I 0 value Type of flush
  221. *
  222. /if not defined(LARGE_FILES)
  223. D gzseek PR extproc('gzseek')
  224. D like(z_off_t)
  225. D file value like(gzFile) File pointer
  226. D offset value like(z_off_t) Offset
  227. D whence 10i 0 value Origin
  228. /else
  229. D gzseek PR extproc('gzseek64')
  230. D like(z_off_t)
  231. D file value like(gzFile) File pointer
  232. D offset value like(z_off_t) Offset
  233. D whence 10i 0 value Origin
  234. *
  235. D gzseek64 PR extproc('gzseek64')
  236. D like(z_off64_t)
  237. D file value like(gzFile) File pointer
  238. D offset value like(z_off64_t) Offset
  239. D whence 10i 0 value Origin
  240. /endif
  241. *
  242. D gzrewind PR 10i 0 extproc('gzrewind')
  243. D file value like(gzFile) File pointer
  244. *
  245. /if not defined(LARGE_FILES)
  246. D gztell PR extproc('gztell')
  247. D like(z_off_t)
  248. D file value like(gzFile) File pointer
  249. /else
  250. D gztell PR extproc('gztell64')
  251. D like(z_off_t)
  252. D file value like(gzFile) File pointer
  253. *
  254. D gztell64 PR extproc('gztell64')
  255. D like(z_off64_t)
  256. D file value like(gzFile) File pointer
  257. /endif
  258. *
  259. /if not defined(LARGE_FILES)
  260. D gzoffset PR extproc('gzoffset')
  261. D like(z_off_t)
  262. D file value like(gzFile) File pointer
  263. /else
  264. D gzoffset PR extproc('gzoffset64')
  265. D like(z_off_t)
  266. D file value like(gzFile) File pointer
  267. *
  268. D gzoffset64 PR extproc('gzoffset64')
  269. D like(z_off64_t)
  270. D file value like(gzFile) File pointer
  271. /endif
  272. *
  273. D gzeof PR 10i 0 extproc('gzeof')
  274. D file value like(gzFile) File pointer
  275. *
  276. D gzdirect PR 10i 0 extproc('gzdirect')
  277. D file value like(gzFile) File pointer
  278. *
  279. D gzclose_r PR 10i 0 extproc('gzclose_r')
  280. D file value like(gzFile) File pointer
  281. *
  282. D gzclose_w PR 10i 0 extproc('gzclose_w')
  283. D file value like(gzFile) File pointer
  284. *
  285. D gzclose PR 10i 0 extproc('gzclose')
  286. D file value like(gzFile) File pointer
  287. *
  288. D gzerror PR * extproc('gzerror') Error string
  289. D file value like(gzFile) File pointer
  290. D errnum 10I 0 Error code
  291. *
  292. D gzclearerr PR extproc('gzclearerr')
  293. D file value like(gzFile) File pointer
  294. *
  295. **************************************************************************
  296. * Basic function prototypes
  297. **************************************************************************
  298. *
  299. D zlibVersion PR * extproc('zlibVersion') Version string
  300. *
  301. D deflateInit PR 10I 0 extproc('deflateInit_') Init. compression
  302. D strm like(z_stream) Compression stream
  303. D level 10I 0 value Compression level
  304. D version * value options(*string) Version string
  305. D stream_size 10i 0 value Stream struct. size
  306. *
  307. D deflate PR 10I 0 extproc('deflate') Compress data
  308. D strm like(z_stream) Compression stream
  309. D flush 10I 0 value Flush type required
  310. *
  311. D deflateEnd PR 10I 0 extproc('deflateEnd') Termin. compression
  312. D strm like(z_stream) Compression stream
  313. *
  314. D inflateInit PR 10I 0 extproc('inflateInit_') Init. expansion
  315. D strm like(z_stream) Expansion stream
  316. D version * value options(*string) Version string
  317. D stream_size 10i 0 value Stream struct. size
  318. *
  319. D inflate PR 10I 0 extproc('inflate') Expand data
  320. D strm like(z_stream) Expansion stream
  321. D flush 10I 0 value Flush type required
  322. *
  323. D inflateEnd PR 10I 0 extproc('inflateEnd') Termin. expansion
  324. D strm like(z_stream) Expansion stream
  325. *
  326. **************************************************************************
  327. * Advanced function prototypes
  328. **************************************************************************
  329. *
  330. D deflateInit2 PR 10I 0 extproc('deflateInit2_') Init. compression
  331. D strm like(z_stream) Compression stream
  332. D level 10I 0 value Compression level
  333. D method 10I 0 value Compression method
  334. D windowBits 10I 0 value log2(window size)
  335. D memLevel 10I 0 value Mem/cmpress tradeoff
  336. D strategy 10I 0 value Compression strategy
  337. D version * value options(*string) Version string
  338. D stream_size 10i 0 value Stream struct. size
  339. *
  340. D deflateSetDictionary...
  341. D PR 10I 0 extproc('deflateSetDictionary') Init. dictionary
  342. D strm like(z_stream) Compression stream
  343. D dictionary 65535 const options(*varsize) Dictionary bytes
  344. D dictLength 10U 0 value Dictionary length
  345. *
  346. D deflateCopy PR 10I 0 extproc('deflateCopy') Compress strm 2 strm
  347. D dest like(z_stream) Destination stream
  348. D source like(z_stream) Source stream
  349. *
  350. D deflateReset PR 10I 0 extproc('deflateReset') End and init. stream
  351. D strm like(z_stream) Compression stream
  352. *
  353. D deflateParams PR 10I 0 extproc('deflateParams') Change level & strat
  354. D strm like(z_stream) Compression stream
  355. D level 10I 0 value Compression level
  356. D strategy 10I 0 value Compression strategy
  357. *
  358. D deflateTune PR 10I 0 extproc('deflateTune')
  359. D strm like(z_stream) Compression stream
  360. D good 10I 0 value
  361. D lazy 10I 0 value
  362. D nice 10I 0 value
  363. D chain 10I 0 value
  364. *
  365. D deflateBound PR 10U 0 extproc('deflateBound') Change level & strat
  366. D strm like(z_stream) Compression stream
  367. D sourcelen 10U 0 value Compression level
  368. *
  369. D deflatePending PR 10I 0 extproc('deflatePending') Change level & strat
  370. D strm like(z_stream) Compression stream
  371. D pending 10U 0 Pending bytes
  372. D bits 10I 0 Pending bits
  373. *
  374. D deflatePrime PR 10I 0 extproc('deflatePrime') Change level & strat
  375. D strm like(z_stream) Compression stream
  376. D bits 10I 0 value # of bits to insert
  377. D value 10I 0 value Bits to insert
  378. *
  379. D inflateInit2 PR 10I 0 extproc('inflateInit2_') Init. expansion
  380. D strm like(z_stream) Expansion stream
  381. D windowBits 10I 0 value log2(window size)
  382. D version * value options(*string) Version string
  383. D stream_size 10i 0 value Stream struct. size
  384. *
  385. D inflateSetDictionary...
  386. D PR 10I 0 extproc('inflateSetDictionary') Init. dictionary
  387. D strm like(z_stream) Expansion stream
  388. D dictionary 65535 const options(*varsize) Dictionary bytes
  389. D dictLength 10U 0 value Dictionary length
  390. *
  391. D inflateGetDictionary...
  392. D PR 10I 0 extproc('inflateGetDictionary') Get dictionary
  393. D strm like(z_stream) Expansion stream
  394. D dictionary 65535 options(*varsize) Dictionary bytes
  395. D dictLength 10U 0 Dictionary length
  396. *
  397. D deflateGetDictionary...
  398. D PR 10I 0 extproc('deflateGetDictionary') Get dictionary
  399. D strm like(z_stream) Expansion stream
  400. D dictionary 65535 options(*varsize) Dictionary bytes
  401. D dictLength 10U 0 Dictionary length
  402. *
  403. D inflateSync PR 10I 0 extproc('inflateSync') Sync. expansion
  404. D strm like(z_stream) Expansion stream
  405. *
  406. D inflateCopy PR 10I 0 extproc('inflateCopy')
  407. D dest like(z_stream) Destination stream
  408. D source like(z_stream) Source stream
  409. *
  410. D inflateReset PR 10I 0 extproc('inflateReset') End and init. stream
  411. D strm like(z_stream) Expansion stream
  412. *
  413. D inflateReset2 PR 10I 0 extproc('inflateReset2') End and init. stream
  414. D strm like(z_stream) Expansion stream
  415. D windowBits 10I 0 value Log2(buffer size)
  416. *
  417. D inflatePrime PR 10I 0 extproc('inflatePrime') Insert bits
  418. D strm like(z_stream) Expansion stream
  419. D bits 10I 0 value Bit count
  420. D value 10I 0 value Bits to insert
  421. *
  422. D inflateMark PR 10I 0 extproc('inflateMark') Get inflate info
  423. D strm like(z_stream) Expansion stream
  424. *
  425. D inflateCodesUsed...
  426. PR 20U 0 extproc('inflateCodesUsed')
  427. D strm like(z_stream) Expansion stream
  428. *
  429. D inflateValidate...
  430. PR 20U 0 extproc('inflateValidate')
  431. D strm like(z_stream) Expansion stream
  432. D check 10I 0 value
  433. *
  434. D inflateGetHeader...
  435. PR 10U 0 extproc('inflateGetHeader')
  436. D strm like(z_stream) Expansion stream
  437. D head like(gz_headerp)
  438. *
  439. D deflateSetHeader...
  440. PR 10U 0 extproc('deflateSetHeader')
  441. D strm like(z_stream) Expansion stream
  442. D head like(gz_headerp)
  443. *
  444. D inflateBackInit...
  445. D PR 10I 0 extproc('inflateBackInit_')
  446. D strm like(z_stream) Expansion stream
  447. D windowBits 10I 0 value Log2(buffer size)
  448. D window 65535 options(*varsize) Buffer
  449. D version * value options(*string) Version string
  450. D stream_size 10i 0 value Stream struct. size
  451. *
  452. D inflateBack PR 10I 0 extproc('inflateBack')
  453. D strm like(z_stream) Expansion stream
  454. D in * value procptr Input function
  455. D in_desc * value Input descriptor
  456. D out * value procptr Output function
  457. D out_desc * value Output descriptor
  458. *
  459. D inflateBackEnd PR 10I 0 extproc('inflateBackEnd')
  460. D strm like(z_stream) Expansion stream
  461. *
  462. D zlibCompileFlags...
  463. D PR 10U 0 extproc('zlibCompileFlags')
  464. *
  465. **************************************************************************
  466. * Checksum function prototypes
  467. **************************************************************************
  468. *
  469. D adler32 PR 10U 0 extproc('adler32') New checksum
  470. D adler 10U 0 value Old checksum
  471. D buf 65535 const options(*varsize) Bytes to accumulate
  472. D len 10U 0 value Buffer length
  473. *
  474. D adler32_combine...
  475. PR 10U 0 extproc('adler32_combine') New checksum
  476. D adler1 10U 0 value Old checksum
  477. D adler2 10U 0 value Old checksum
  478. D len2 20U 0 value Buffer length
  479. *
  480. D adler32_z PR 10U 0 extproc('adler32_z') New checksum
  481. D adler 10U 0 value Old checksum
  482. D buf 65535 const options(*varsize) Bytes to accumulate
  483. D len 20U 0 value Buffer length
  484. *
  485. D crc32 PR 10U 0 extproc('crc32') New checksum
  486. D crc 10U 0 value Old checksum
  487. D buf 65535 const options(*varsize) Bytes to accumulate
  488. D len 10U 0 value Buffer length
  489. *
  490. D crc32_combine...
  491. PR 10U 0 extproc('crc32_combine') New checksum
  492. D crc1 10U 0 value Old checksum
  493. D crc2 10U 0 value Old checksum
  494. D len2 20U 0 value Buffer length
  495. *
  496. D crc32_z PR 10U 0 extproc('crc32_z') New checksum
  497. D crc 10U 0 value Old checksum
  498. D buf 65535 const options(*varsize) Bytes to accumulate
  499. D len 20U 0 value Buffer length
  500. *
  501. **************************************************************************
  502. * Miscellaneous function prototypes
  503. **************************************************************************
  504. *
  505. D zError PR * extproc('zError') Error string
  506. D err 10I 0 value Error code
  507. *
  508. D inflateSyncPoint...
  509. D PR 10I 0 extproc('inflateSyncPoint')
  510. D strm like(z_stream) Expansion stream
  511. *
  512. D get_crc_table PR * extproc('get_crc_table') Ptr to ulongs
  513. *
  514. D inflateUndermine...
  515. D PR 10I 0 extproc('inflateUndermine')
  516. D strm like(z_stream) Expansion stream
  517. D arg 10I 0 value Error code
  518. *
  519. D inflateResetKeep...
  520. D PR 10I 0 extproc('inflateResetKeep') End and init. stream
  521. D strm like(z_stream) Expansion stream
  522. *
  523. D deflateResetKeep...
  524. D PR 10I 0 extproc('deflateResetKeep') End and init. stream
  525. D strm like(z_stream) Expansion stream
  526. *
  527. /endif