* ZLIB.INC - Interface to the general purpose compression library * * ILE RPG400 version by Patrick Monnerat, DATASPHERE. * Version 1.2.3 * * * WARNING: * Procedures inflateInit(), inflateInit2(), deflateInit(), * deflateInit2() and inflateBackInit() need to be called with * two additional arguments: * the package version string and the stream control structure. * size. This is needed because RPG lacks some macro feature. * Call these procedures as: * inflateInit(...: ZLIB_VERSION: %size(z_stream)) * /if not defined(ZLIB_H_) /define ZLIB_H_ * ************************************************************************** * Constants ************************************************************************** * * Versioning information. * D ZLIB_VERSION C '1.2.3' D ZLIB_VERNUM C X'1230' * * Other equates. * D Z_NO_FLUSH C 0 D Z_SYNC_FLUSH C 2 D Z_FULL_FLUSH C 3 D Z_FINISH C 4 D Z_BLOCK C 5 * D Z_OK C 0 D Z_STREAM_END C 1 D Z_NEED_DICT C 2 D Z_ERRNO C -1 D Z_STREAM_ERROR C -2 D Z_DATA_ERROR C -3 D Z_MEM_ERROR C -4 D Z_BUF_ERROR C -5 DZ_VERSION_ERROR C -6 * D Z_NO_COMPRESSION... D C 0 D Z_BEST_SPEED C 1 D Z_BEST_COMPRESSION... D C 9 D Z_DEFAULT_COMPRESSION... D C -1 * D Z_FILTERED C 1 D Z_HUFFMAN_ONLY C 2 D Z_RLE C 3 D Z_DEFAULT_STRATEGY... D C 0 * D Z_BINARY C 0 D Z_ASCII C 1 D Z_UNKNOWN C 2 * D Z_DEFLATED C 8 * D Z_NULL C 0 * ************************************************************************** * Types ************************************************************************** * D z_streamp S * Stream struct ptr D gzFile S * File pointer D z_off_t S 10i 0 Stream offsets * ************************************************************************** * Structures ************************************************************************** * * The GZIP encode/decode stream support structure. * D z_stream DS align based(z_streamp) D zs_next_in * Next input byte D zs_avail_in 10U 0 Byte cnt at next_in D zs_total_in 10U 0 Total bytes read D zs_next_out * Output buffer ptr D zs_avail_out 10U 0 Room left @ next_out D zs_total_out 10U 0 Total bytes written D zs_msg * Last errmsg or null D zs_state * Internal state D zs_zalloc * procptr Int. state allocator D zs_free * procptr Int. state dealloc. D zs_opaque * Private alloc. data D zs_data_type 10i 0 ASC/BIN best guess D zs_adler 10u 0 Uncompr. adler32 val D 10U 0 Reserved D 10U 0 Ptr. alignment * ************************************************************************** * Utility function prototypes ************************************************************************** * D compress PR 10I 0 extproc('compress') D dest 32767 options(*varsize) Destination buffer D destLen 10U 0 Destination length D source 32767 const options(*varsize) Source buffer D sourceLen 10u 0 value Source length * D compress2 PR 10I 0 extproc('compress2') D dest 32767 options(*varsize) Destination buffer D destLen 10U 0 Destination length D source 32767 const options(*varsize) Source buffer D sourceLen 10U 0 value Source length D level 10I 0 value Compression level * D compressBound PR 10U 0 extproc('compressBound') D sourceLen 10U 0 value * D uncompress PR 10I 0 extproc('uncompress') D dest 32767 options(*varsize) Destination buffer D destLen 10U 0 Destination length D source 32767 const options(*varsize) Source buffer D sourceLen 10U 0 value Source length * D gzopen PR extproc('gzopen') D like(gzFile) D path * value options(*string) File pathname D mode * value options(*string) Open mode * D gzdopen PR extproc('gzdopen') D like(gzFile) D fd 10i 0 value File descriptor D mode * value options(*string) Open mode * D gzsetparams PR 10I 0 extproc('gzsetparams') D file value like(gzFile) File pointer D level 10I 0 value D strategy 10i 0 value * D gzread PR 10I 0 extproc('gzread') D file value like(gzFile) File pointer D buf 32767 options(*varsize) Buffer D len 10u 0 value Buffer length * D gzwrite PR 10I 0 extproc('gzwrite') D file value like(gzFile) File pointer D buf 32767 const options(*varsize) Buffer D len 10u 0 value Buffer length * D gzputs PR 10I 0 extproc('gzputs') D file value like(gzFile) File pointer D s * value options(*string) String to output * D gzgets PR * extproc('gzgets') D file value like(gzFile) File pointer D buf 32767 options(*varsize) Read buffer D len 10i 0 value Buffer length * D gzflush PR 10i 0 extproc('gzflush') D file value like(gzFile) File pointer D flush 10I 0 value Type of flush * D gzseek PR extproc('gzseek') D like(z_off_t) D file value like(gzFile) File pointer D offset value like(z_off_t) Offset D whence 10i 0 value Origin * D gzrewind PR 10i 0 extproc('gzrewind') D file value like(gzFile) File pointer * D gztell PR extproc('gztell') D like(z_off_t) D file value like(gzFile) File pointer * D gzeof PR 10i 0 extproc('gzeof') D file value like(gzFile) File pointer * D gzclose PR 10i 0 extproc('gzclose') D file value like(gzFile) File pointer * D gzerror PR * extproc('gzerror') Error string D file value like(gzFile) File pointer D errnum 10I 0 Error code * D gzclearerr PR extproc('gzclearerr') D file value like(gzFile) File pointer * ************************************************************************** * Basic function prototypes ************************************************************************** * D zlibVersion PR * extproc('zlibVersion') Version string * D deflateInit PR 10I 0 extproc('deflateInit_') Init. compression D strm like(z_stream) Compression stream D level 10I 0 value Compression level D version * value options(*string) Version string D stream_size 10i 0 value Stream struct. size * D deflate PR 10I 0 extproc('deflate') Compress data D strm like(z_stream) Compression stream D flush 10I 0 value Flush type required * D deflateEnd PR 10I 0 extproc('deflateEnd') Termin. compression D strm like(z_stream) Compression stream * D inflateInit PR 10I 0 extproc('inflateInit_') Init. expansion D strm like(z_stream) Expansion stream D version * value options(*string) Version string D stream_size 10i 0 value Stream struct. size * D inflate PR 10I 0 extproc('inflate') Expand data D strm like(z_stream) Expansion stream D flush 10I 0 value Flush type required * D inflateEnd PR 10I 0 extproc('inflateEnd') Termin. expansion D strm like(z_stream) Expansion stream * ************************************************************************** * Advanced function prototypes ************************************************************************** * D deflateInit2 PR 10I 0 extproc('deflateInit2_') Init. compression D strm like(z_stream) Compression stream D level 10I 0 value Compression level D method 10I 0 value Compression method D windowBits 10I 0 value log2(window size) D memLevel 10I 0 value Mem/cmpress tradeoff D strategy 10I 0 value Compression stategy D version * value options(*string) Version string D stream_size 10i 0 value Stream struct. size * D deflateSetDictionary... D PR 10I 0 extproc('deflateSetDictionary') Init. dictionary D strm like(z_stream) Compression stream D dictionary 32767 const options(*varsize) Dictionary bytes D dictLength 10U 0 value Dictionary length * D deflateCopy PR 10I 0 extproc('deflateCopy') Compress strm 2 strm D dest like(z_stream) Destination stream D source like(z_stream) Source stream * D deflateReset PR 10I 0 extproc('deflateReset') End and init. stream D strm like(z_stream) Compression stream * D deflateParams PR 10I 0 extproc('deflateParams') Change level & strat D strm like(z_stream) Compression stream D level 10I 0 value Compression level D strategy 10I 0 value Compression stategy * D deflateBound PR 10U 0 extproc('deflateBound') Change level & strat D strm like(z_stream) Compression stream D sourcelen 10U 0 value Compression level * D deflatePrime PR 10I 0 extproc('deflatePrime') Change level & strat D strm like(z_stream) Compression stream D bits 10I 0 value Number of bits to insert D value 10I 0 value Bits to insert * D inflateInit2 PR 10I 0 extproc('inflateInit2_') Init. expansion D strm like(z_stream) Expansion stream D windowBits 10I 0 value log2(window size) D version * value options(*string) Version string D stream_size 10i 0 value Stream struct. size * D inflateSetDictionary... D PR 10I 0 extproc('inflateSetDictionary') Init. dictionary D strm like(z_stream) Expansion stream D dictionary 32767 const options(*varsize) Dictionary bytes D dictLength 10U 0 value Dictionary length * D inflateSync PR 10I 0 extproc('inflateSync') Sync. expansion D strm like(z_stream) Expansion stream * D inflateCopy PR 10I 0 extproc('inflateCopy') D dest like(z_stream) Destination stream D source like(z_stream) Source stream * D inflateReset PR 10I 0 extproc('inflateReset') End and init. stream D strm like(z_stream) Expansion stream * D inflateBackInit... D PR 10I 0 extproc('inflateBackInit_') D strm like(z_stream) Expansion stream D windowBits 10I 0 value Log2(buffer size) D window 32767 options(*varsize) Buffer D version * value options(*string) Version string D stream_size 10i 0 value Stream struct. size * D inflateBack PR 10I 0 extproc('inflateBack') D strm like(z_stream) Expansion stream D in * value procptr Input function D in_desc * value Input descriptor D out * value procptr Output function D out_desc * value Output descriptor * D inflateBackEnd PR 10I 0 extproc('inflateBackEnd') D strm like(z_stream) Expansion stream * D zlibCompileFlags... D PR 10U 0 extproc('zlibCompileFlags') * ************************************************************************** * Checksum function prototypes ************************************************************************** * D adler32 PR 10U 0 extproc('adler32') New checksum D adler 10U 0 value Old checksum D buf 32767 const options(*varsize) Bytes to accumulate D len 10U 0 value Buffer length * D crc32 PR 10U 0 extproc('crc32') New checksum D crc 10U 0 value Old checksum D buf 32767 const options(*varsize) Bytes to accumulate D len 10U 0 value Buffer length * ************************************************************************** * Miscellaneous function prototypes ************************************************************************** * D zError PR * extproc('zError') Error string D err 10I 0 value Error code * D inflateSyncPoint... D PR 10I 0 extproc('inflateSyncPoint') D strm like(z_stream) Expansion stream * D get_crc_table PR * extproc('get_crc_table') Ptr to ulongs * /endif