zlib.inc 20 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 1.2.3.9
  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 '1.2.3.9'
  26. D ZLIB_VERNUM C X'1239'
  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