zconf.h revision 1.6
1 /* $NetBSD: zconf.h,v 1.6 2025/10/19 21:33:35 riastradh Exp $ */ 2 3 /* zconf.h -- configuration of the zlib compression library 4 * Copyright (C) 1995-2024 Jean-loup Gailly, Mark Adler 5 * For conditions of distribution and use, see copyright notice in zlib.h 6 */ 7 8 /* @(#) Id */ 9 10 #ifndef ZCONF_H 11 #define ZCONF_H 12 13 #include <sys/types.h> 14 15 /* 16 * If you *really* need a unique prefix for all types and library functions, 17 * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. 18 * Even better than compiling with -DZ_PREFIX would be to use configure to set 19 * this permanently in zconf.h using "./configure --zprefix". 20 */ 21 #ifdef Z_PREFIX /* may be set to #if 1 by ./configure */ 22 # define Z_PREFIX_SET 23 24 /* all linked symbols and init macros */ 25 # define _dist_code z__dist_code 26 # define _length_code z__length_code 27 # define _tr_align z__tr_align 28 # define _tr_flush_bits z__tr_flush_bits 29 # define _tr_flush_block z__tr_flush_block 30 # define _tr_init z__tr_init 31 # define _tr_stored_block z__tr_stored_block 32 # define _tr_tally z__tr_tally 33 # define adler32 z_adler32 34 # define adler32_combine z_adler32_combine 35 # define adler32_combine64 z_adler32_combine64 36 # define adler32_z z_adler32_z 37 # ifndef Z_SOLO 38 # define compress z_compress 39 # define compress2 z_compress2 40 # define compressBound z_compressBound 41 # endif 42 # define crc32 z_crc32 43 # define crc32_combine z_crc32_combine 44 # define crc32_combine64 z_crc32_combine64 45 # define crc32_combine_gen z_crc32_combine_gen 46 # define crc32_combine_gen64 z_crc32_combine_gen64 47 # define crc32_combine_op z_crc32_combine_op 48 # define crc32_z z_crc32_z 49 # define deflate z_deflate 50 # define deflateBound z_deflateBound 51 # define deflateCopy z_deflateCopy 52 # define deflateEnd z_deflateEnd 53 # define deflateGetDictionary z_deflateGetDictionary 54 # define deflateInit z_deflateInit 55 # define deflateInit2 z_deflateInit2 56 # define deflateInit2_ z_deflateInit2_ 57 # define deflateInit_ z_deflateInit_ 58 # define deflateParams z_deflateParams 59 # define deflatePending z_deflatePending 60 # define deflatePrime z_deflatePrime 61 # define deflateReset z_deflateReset 62 # define deflateResetKeep z_deflateResetKeep 63 # define deflateSetDictionary z_deflateSetDictionary 64 # define deflateSetHeader z_deflateSetHeader 65 # define deflateTune z_deflateTune 66 # define deflate_copyright z_deflate_copyright 67 # define get_crc_table z_get_crc_table 68 # ifndef Z_SOLO 69 # define gz_error z_gz_error 70 # define gz_intmax z_gz_intmax 71 # define gz_strwinerror z_gz_strwinerror 72 # define gzbuffer z_gzbuffer 73 # define gzclearerr z_gzclearerr 74 # define gzclose z_gzclose 75 # define gzclose_r z_gzclose_r 76 # define gzclose_w z_gzclose_w 77 # define gzdirect z_gzdirect 78 # define gzdopen z_gzdopen 79 # define gzeof z_gzeof 80 # define gzerror z_gzerror 81 # define gzflush z_gzflush 82 # define gzfread z_gzfread 83 # define gzfwrite z_gzfwrite 84 # define gzgetc z_gzgetc 85 # define gzgetc_ z_gzgetc_ 86 # define gzgets z_gzgets 87 # define gzoffset z_gzoffset 88 # define gzoffset64 z_gzoffset64 89 # define gzopen z_gzopen 90 # define gzopen64 z_gzopen64 91 # ifdef _WIN32 92 # define gzopen_w z_gzopen_w 93 # endif 94 # define gzprintf z_gzprintf 95 # define gzputc z_gzputc 96 # define gzputs z_gzputs 97 # define gzread z_gzread 98 # define gzrewind z_gzrewind 99 # define gzseek z_gzseek 100 # define gzseek64 z_gzseek64 101 # define gzsetparams z_gzsetparams 102 # define gztell z_gztell 103 # define gztell64 z_gztell64 104 # define gzungetc z_gzungetc 105 # define gzvprintf z_gzvprintf 106 # define gzwrite z_gzwrite 107 # endif 108 # define inflate z_inflate 109 # define inflateBack z_inflateBack 110 # define inflateBackEnd z_inflateBackEnd 111 # define inflateBackInit z_inflateBackInit 112 # define inflateBackInit_ z_inflateBackInit_ 113 # define inflateCodesUsed z_inflateCodesUsed 114 # define inflateCopy z_inflateCopy 115 # define inflateEnd z_inflateEnd 116 # define inflateGetDictionary z_inflateGetDictionary 117 # define inflateGetHeader z_inflateGetHeader 118 # define inflateInit z_inflateInit 119 # define inflateInit2 z_inflateInit2 120 # define inflateInit2_ z_inflateInit2_ 121 # define inflateInit_ z_inflateInit_ 122 # define inflateMark z_inflateMark 123 # define inflatePrime z_inflatePrime 124 # define inflateReset z_inflateReset 125 # define inflateReset2 z_inflateReset2 126 # define inflateResetKeep z_inflateResetKeep 127 # define inflateSetDictionary z_inflateSetDictionary 128 # define inflateSync z_inflateSync 129 # define inflateSyncPoint z_inflateSyncPoint 130 # define inflateUndermine z_inflateUndermine 131 # define inflateValidate z_inflateValidate 132 # define inflate_copyright z_inflate_copyright 133 # define inflate_fast z_inflate_fast 134 # define inflate_table z_inflate_table 135 # ifndef Z_SOLO 136 # define uncompress z_uncompress 137 # define uncompress2 z_uncompress2 138 # endif 139 # define zError z_zError 140 # ifndef Z_SOLO 141 # define zcalloc z_zcalloc 142 # define zcfree z_zcfree 143 # endif 144 # define zlibCompileFlags z_zlibCompileFlags 145 # define zlibVersion z_zlibVersion 146 147 /* all zlib typedefs in zlib.h and zconf.h */ 148 # define Byte z_Byte 149 # define Bytef z_Bytef 150 # define alloc_func z_alloc_func 151 # define charf z_charf 152 # define free_func z_free_func 153 # ifndef Z_SOLO 154 # define gzFile z_gzFile 155 # endif 156 # define gz_header z_gz_header 157 # define gz_headerp z_gz_headerp 158 # define in_func z_in_func 159 # define intf z_intf 160 # define out_func z_out_func 161 # define uInt z_uInt 162 # define uIntf z_uIntf 163 # define uLong z_uLong 164 # define uLongf z_uLongf 165 # define voidp z_voidp 166 # define voidpc z_voidpc 167 # define voidpf z_voidpf 168 169 /* all zlib structs in zlib.h and zconf.h */ 170 # define gz_header_s z_gz_header_s 171 # define internal_state z_internal_state 172 173 #endif 174 175 #if defined(__MSDOS__) && !defined(MSDOS) 176 # define MSDOS 177 #endif 178 #if (defined(OS_2) || defined(__OS2__)) && !defined(OS2) 179 # define OS2 180 #endif 181 #if defined(_WINDOWS) && !defined(WINDOWS) 182 # define WINDOWS 183 #endif 184 #if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__) 185 # ifndef WIN32 186 # define WIN32 187 # endif 188 #endif 189 #if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32) 190 # if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__) 191 # ifndef SYS16BIT 192 # define SYS16BIT 193 # endif 194 # endif 195 #endif 196 197 /* 198 * Compile with -DMAXSEG_64K if the alloc function cannot allocate more 199 * than 64k bytes at a time (needed on systems with 16-bit int). 200 */ 201 #ifdef SYS16BIT 202 # define MAXSEG_64K 203 #endif 204 #ifdef MSDOS 205 # define UNALIGNED_OK 206 #endif 207 208 #ifdef __STDC_VERSION__ 209 # ifndef STDC 210 # define STDC 211 # endif 212 # if __STDC_VERSION__ >= 199901L 213 # ifndef STDC99 214 # define STDC99 215 # endif 216 # endif 217 #endif 218 #if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus)) 219 # define STDC 220 #endif 221 #if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__)) 222 # define STDC 223 #endif 224 #if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32)) 225 # define STDC 226 #endif 227 #if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__)) 228 # define STDC 229 #endif 230 231 #if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */ 232 # define STDC 233 #endif 234 235 #ifndef STDC 236 # ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ 237 # define const /* note: need a more gentle solution here */ 238 # endif 239 #endif 240 241 #if defined(ZLIB_CONST) && !defined(z_const) 242 # define z_const const 243 #else 244 # define z_const 245 #endif 246 247 #ifdef Z_SOLO 248 # ifdef _WIN64 249 typedef unsigned long long z_size_t; 250 # else 251 typedef unsigned long z_size_t; 252 # endif 253 #else 254 # define z_longlong long long 255 # if defined(NO_SIZE_T) 256 typedef unsigned NO_SIZE_T z_size_t; 257 # elif defined(STDC) 258 # if defined(_KERNEL) || defined(_STANDALONE) 259 # include <lib/libkern/libkern.h> 260 # else 261 # include <stddef.h> 262 # endif 263 typedef size_t z_size_t; 264 # else 265 typedef unsigned long z_size_t; 266 # endif 267 # undef z_longlong 268 #endif 269 270 /* Maximum value for memLevel in deflateInit2 */ 271 #ifndef MAX_MEM_LEVEL 272 # ifdef MAXSEG_64K 273 # define MAX_MEM_LEVEL 8 274 # else 275 # define MAX_MEM_LEVEL 9 276 # endif 277 #endif 278 279 /* Maximum value for windowBits in deflateInit2 and inflateInit2. 280 * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files 281 * created by gzip. (Files created by minigzip can still be extracted by 282 * gzip.) 283 */ 284 #ifndef MAX_WBITS 285 # define MAX_WBITS 15 /* 32K LZ77 window */ 286 #endif 287 288 /* The memory requirements for deflate are (in bytes): 289 (1 << (windowBits+2)) + (1 << (memLevel+9)) 290 that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) 291 plus a few kilobytes for small objects. For example, if you want to reduce 292 the default memory requirements from 256K to 128K, compile with 293 make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" 294 Of course this will generally degrade compression (there's no free lunch). 295 296 The memory requirements for inflate are (in bytes) 1 << windowBits 297 that is, 32K for windowBits=15 (default value) plus about 7 kilobytes 298 for small objects. 299 */ 300 301 /* Type declarations */ 302 303 #ifndef OF /* function prototypes */ 304 # ifdef STDC 305 # define OF(args) args 306 # else 307 # define OF(args) () 308 # endif 309 #endif 310 311 /* The following definitions for FAR are needed only for MSDOS mixed 312 * model programming (small or medium model with some far allocations). 313 * This was tested only with MSC; for other MSDOS compilers you may have 314 * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, 315 * just define FAR to be empty. 316 */ 317 #ifdef SYS16BIT 318 # if defined(M_I86SM) || defined(M_I86MM) 319 /* MSC small or medium model */ 320 # define SMALL_MEDIUM 321 # ifdef _MSC_VER 322 # define FAR _far 323 # else 324 # define FAR far 325 # endif 326 # endif 327 # if (defined(__SMALL__) || defined(__MEDIUM__)) 328 /* Turbo C small or medium model */ 329 # define SMALL_MEDIUM 330 # ifdef __BORLANDC__ 331 # define FAR _far 332 # else 333 # define FAR far 334 # endif 335 # endif 336 #endif 337 338 #if defined(WINDOWS) || defined(WIN32) 339 /* If building or using zlib as a DLL, define ZLIB_DLL. 340 * This is not mandatory, but it offers a little performance increase. 341 */ 342 # ifdef ZLIB_DLL 343 # if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500)) 344 # ifdef ZLIB_INTERNAL 345 # define ZEXTERN extern __declspec(dllexport) 346 # else 347 # define ZEXTERN extern __declspec(dllimport) 348 # endif 349 # endif 350 # endif /* ZLIB_DLL */ 351 /* If building or using zlib with the WINAPI/WINAPIV calling convention, 352 * define ZLIB_WINAPI. 353 * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI. 354 */ 355 # ifdef ZLIB_WINAPI 356 # ifdef FAR 357 # undef FAR 358 # endif 359 # ifndef WIN32_LEAN_AND_MEAN 360 # define WIN32_LEAN_AND_MEAN 361 # endif 362 # include <windows.h> 363 /* No need for _export, use ZLIB.DEF instead. */ 364 /* For complete Windows compatibility, use WINAPI, not __stdcall. */ 365 # define ZEXPORT WINAPI 366 # ifdef WIN32 367 # define ZEXPORTVA WINAPIV 368 # else 369 # define ZEXPORTVA FAR CDECL 370 # endif 371 # endif 372 #endif 373 374 #if defined (__BEOS__) 375 # ifdef ZLIB_DLL 376 # ifdef ZLIB_INTERNAL 377 # define ZEXPORT __declspec(dllexport) 378 # define ZEXPORTVA __declspec(dllexport) 379 # else 380 # define ZEXPORT __declspec(dllimport) 381 # define ZEXPORTVA __declspec(dllimport) 382 # endif 383 # endif 384 #endif 385 386 #ifndef ZEXTERN 387 # define ZEXTERN extern 388 #endif 389 #ifndef ZEXPORT 390 # define ZEXPORT 391 #endif 392 #ifndef ZEXPORTVA 393 # define ZEXPORTVA 394 #endif 395 396 #ifndef FAR 397 # define FAR 398 #endif 399 400 #if !defined(__MACTYPES__) 401 typedef unsigned char Byte; /* 8 bits */ 402 #endif 403 typedef unsigned int uInt; /* 16 bits or more */ 404 typedef unsigned long uLong; /* 32 bits or more */ 405 406 #ifdef SMALL_MEDIUM 407 /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ 408 # define Bytef Byte FAR 409 #else 410 typedef Byte FAR Bytef; 411 #endif 412 typedef char FAR charf; 413 typedef int FAR intf; 414 typedef uInt FAR uIntf; 415 typedef uLong FAR uLongf; 416 417 #ifdef STDC 418 typedef void const *voidpc; 419 typedef void FAR *voidpf; 420 typedef void *voidp; 421 #else 422 typedef Byte const *voidpc; 423 typedef Byte FAR *voidpf; 424 typedef Byte *voidp; 425 #endif 426 427 #if !defined(Z_U4) && !defined(Z_SOLO) && defined(STDC) 428 # if defined(_KERNEL) || defined(_STANDALONE) 429 # include <machine/limits.h> 430 # else 431 # include <limits.h> 432 # endif 433 # if (UINT_MAX == 0xffffffffUL) 434 # define Z_U4 unsigned 435 # elif (ULONG_MAX == 0xffffffffUL) 436 # define Z_U4 unsigned long 437 # elif (USHRT_MAX == 0xffffffffUL) 438 # define Z_U4 unsigned short 439 # endif 440 #endif 441 442 #ifdef Z_U4 443 typedef Z_U4 z_crc_t; 444 #else 445 typedef unsigned long z_crc_t; 446 #endif 447 448 /* 449 * PR lib/59711: "#define HAVE_UNISTD_H 1" breaks 32-bit libz 450 * 451 * Upstream uses unistd.h and stdarg.h -- and, most importantly, 452 * defines z_off_t to be off_t rather than long -- only if 453 * HAVE_UNISTD_H is defined, from autoconf. We don't use autoconf in 454 * the NetBSD zlib build, so HAVE_UNISTD_H is never defined in the 455 * library build -- but it might be defined in users, which would then 456 * observe the wrong ABI on big-endian LP32 platforms (where long is 457 * 32-bit but off_t is 64-bit and the first four bytes don't coincide 458 * because of endianness). 459 * 460 * To avoid changing the ABI of already-compiled libz.so.1, we disable 461 * defining Z_HAVE_UNISTD_H and Z_HAVE_STDARG_H altogether, 462 * irrespective of HAVE_UNISTD_H and HAVE_STDARG_H so callers don't 463 * accidentally get it turned on. 464 * 465 * Later, we can unconditionally enable Z_HAVE_UNISTD_H and 466 * Z_HAVE_STDARG_H (since have been available on NetBSD for a long 467 * time) and bump the library major version to libz.so.2, so that LP32 468 * platforms can support 64-bit file offsets for gzread/gzseek/&c. 469 */ 470 #if 0 //#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */ 471 # define Z_HAVE_UNISTD_H 472 #endif 473 474 #if 0 //#ifdef HAVE_STDARG_H /* may be set to #if 1 by ./configure */ 475 # define Z_HAVE_STDARG_H 476 #endif 477 478 #ifdef STDC 479 # ifndef Z_SOLO 480 # include <sys/types.h> /* for off_t */ 481 # endif 482 #endif 483 484 #if defined(STDC) || defined(Z_HAVE_STDARG_H) 485 # ifndef Z_SOLO 486 # if defined(_KERNEL) || defined(_STANDALONE) 487 # include <sys/stdarg.h> /* for va_list */ 488 # else 489 # include <stdarg.h> /* for va_list */ 490 # endif 491 # endif 492 #endif 493 494 #ifdef _WIN32 495 # ifndef Z_SOLO 496 # include <stddef.h> /* for wchar_t */ 497 # endif 498 #endif 499 500 /* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and 501 * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even 502 * though the former does not conform to the LFS document), but considering 503 * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as 504 * equivalently requesting no 64-bit operations 505 */ 506 #if defined(_LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1 507 # undef _LARGEFILE64_SOURCE 508 #endif 509 510 #ifndef Z_HAVE_UNISTD_H 511 # ifdef __WATCOMC__ 512 # define Z_HAVE_UNISTD_H 513 # endif 514 #endif 515 #ifndef Z_HAVE_UNISTD_H 516 # if defined(_LARGEFILE64_SOURCE) && !defined(_WIN32) 517 # define Z_HAVE_UNISTD_H 518 # endif 519 #endif 520 #ifndef Z_SOLO 521 # if defined(Z_HAVE_UNISTD_H) 522 # include <unistd.h> /* for SEEK_*, off_t, and _LFS64_LARGEFILE */ 523 # ifdef VMS 524 # include <unixio.h> /* for off_t */ 525 # endif 526 # ifndef z_off_t 527 # define z_off_t off_t 528 # endif 529 # endif 530 #endif 531 532 #if defined(_LFS64_LARGEFILE) && _LFS64_LARGEFILE-0 533 # define Z_LFS64 534 #endif 535 536 #if defined(_LARGEFILE64_SOURCE) && defined(Z_LFS64) 537 # define Z_LARGE64 538 #endif 539 540 #if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS-0 == 64 && defined(Z_LFS64) 541 # define Z_WANT64 542 #endif 543 544 #if !defined(SEEK_SET) && !defined(Z_SOLO) 545 # define SEEK_SET 0 /* Seek from beginning of file. */ 546 # define SEEK_CUR 1 /* Seek from current position. */ 547 # define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ 548 #endif 549 550 #ifndef z_off_t 551 # define z_off_t long 552 #endif 553 #ifndef z_ptrdiff_t 554 # define z_ptrdiff_t long 555 #endif 556 557 #if !defined(_WIN32) && defined(Z_LARGE64) 558 # define z_off64_t off64_t 559 #else 560 # if defined(_WIN32) && !defined(__GNUC__) 561 # define z_off64_t __int64 562 # else 563 # define z_off64_t z_off_t 564 # endif 565 #endif 566 567 /* MVS linker does not support external names larger than 8 bytes */ 568 #if defined(__MVS__) 569 #pragma map(deflateInit_,"DEIN") 570 #pragma map(deflateInit2_,"DEIN2") 571 #pragma map(deflateEnd,"DEEND") 572 #pragma map(deflateBound,"DEBND") 573 #pragma map(inflateInit_,"ININ") 574 #pragma map(inflateInit2_,"ININ2") 575 #pragma map(inflateEnd,"INEND") 576 #pragma map(inflateSync,"INSY") 577 #pragma map(inflateSetDictionary,"INSEDI") 578 #pragma map(compressBound,"CMBND") 579 #pragma map(inflate_table,"INTABL") 580 #pragma map(inflate_fast,"INFA") 581 #pragma map(inflate_copyright,"INCOPY") 582 #endif 583 584 #endif /* ZCONF_H */ 585
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