1 #ifndef HEADER_CURL_SETUP_H 2 #define HEADER_CURL_SETUP_H 3 /*************************************************************************** 4 * _ _ ____ _ 5 * Project ___| | | | _ \| | 6 * / __| | | | |_) | | 7 * | (__| |_| | _ <| |___ 8 * \___|\___/|_| \_\_____| 9 * 10 * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. 11 * 12 * This software is licensed as described in the file COPYING, which 13 * you should have received as part of this distribution. The terms 14 * are also available at https://curl.se/docs/copyright.html. 15 * 16 * You may opt to use, copy, modify, merge, publish, distribute and/or sell 17 * copies of the Software, and permit persons to whom the Software is 18 * furnished to do so, under the terms of the COPYING file. 19 * 20 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 21 * KIND, either express or implied. 22 * 23 * SPDX-License-Identifier: curl 24 * 25 ***************************************************************************/ 26 27 #if defined(BUILDING_LIBCURL) && !defined(CURL_NO_OLDIES) 28 #define CURL_NO_OLDIES 29 #endif 30 31 /* Tell "curl/curl.h" not to include "curl/mprintf.h" */ 32 #define CURL_SKIP_INCLUDE_MPRINTF 33 34 /* Set default _WIN32_WINNT */ 35 #ifdef __MINGW32__ 36 #include <_mingw.h> 37 #endif 38 39 /* Workaround for Homebrew gcc 12.4.0, 13.3.0, 14.1.0, 14.2.0 (initial build) 40 that started advertising the `availability` attribute, which then gets used 41 by Apple SDK, but, in a way incompatible with gcc, resulting in misc errors 42 inside SDK headers, e.g.: 43 error: attributes should be specified before the declarator in a function 44 definition 45 error: expected ',' or '}' before 46 Followed by missing declarations. 47 Work it around by overriding the built-in feature-check macro used by the 48 headers to enable the problematic attributes. This makes the feature check 49 fail. Fixed in 14.2.0_1. Disable the workaround if the fix is detected. */ 50 #if defined(__APPLE__) && !defined(__clang__) && defined(__GNUC__) && \ 51 defined(__has_attribute) 52 # if !defined(__has_feature) 53 # define availability curl_pp_attribute_disabled 54 # elif !__has_feature(attribute_availability) 55 # define availability curl_pp_attribute_disabled 56 # endif 57 #endif 58 59 #if defined(__APPLE__) 60 #include <sys/types.h> 61 #include <TargetConditionals.h> 62 /* Fixup faulty target macro initialization in macOS SDK since v14.4 (as of 63 15.0 beta). The SDK target detection in `TargetConditionals.h` correctly 64 detects macOS, but fails to set the macro's old name `TARGET_OS_OSX`, then 65 continues to set it to a default value of 0. Other parts of the SDK still 66 rely on the old name, and with this inconsistency our builds fail due to 67 missing declarations. It happens when using mainline llvm older than v18. 68 Later versions fixed it by predefining these target macros, avoiding the 69 faulty dynamic detection. gcc is not affected (for now) because it lacks 70 the necessary dynamic detection features, so the SDK falls back to 71 a codepath that sets both the old and new macro to 1. */ 72 #if defined(TARGET_OS_MAC) && TARGET_OS_MAC && \ 73 defined(TARGET_OS_OSX) && !TARGET_OS_OSX && \ 74 (!defined(TARGET_OS_IPHONE) || !TARGET_OS_IPHONE) && \ 75 (!defined(TARGET_OS_SIMULATOR) || !TARGET_OS_SIMULATOR) 76 #undef TARGET_OS_OSX 77 #define TARGET_OS_OSX TARGET_OS_MAC 78 #endif 79 #endif 80 81 #ifdef _MSC_VER 82 /* Disable Visual Studio warnings: 4127 "conditional expression is constant" */ 83 #pragma warning(disable:4127) 84 /* Avoid VS2005 and upper complaining about portable C functions. */ 85 #ifndef _CRT_NONSTDC_NO_DEPRECATE 86 #define _CRT_NONSTDC_NO_DEPRECATE /* for strdup(), write(), etc. */ 87 #endif 88 #ifndef _CRT_SECURE_NO_DEPRECATE 89 #define _CRT_SECURE_NO_DEPRECATE /* for fopen(), getenv(), etc. */ 90 #endif 91 #endif /* _MSC_VER */ 92 93 #ifdef _WIN32 94 /* 95 * Do not include unneeded stuff in Windows headers to avoid compiler 96 * warnings and macro clashes. 97 * Make sure to define this macro before including any Windows headers. 98 */ 99 # ifndef WIN32_LEAN_AND_MEAN 100 # define WIN32_LEAN_AND_MEAN 101 # endif 102 # ifndef NOGDI 103 # define NOGDI 104 # endif 105 /* Detect Windows App environment which has a restricted access 106 * to the Win32 APIs. */ 107 # if (defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0602)) || \ 108 defined(WINAPI_FAMILY) 109 # include <winapifamily.h> 110 # if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP) && \ 111 !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) 112 # define CURL_WINDOWS_UWP 113 # endif 114 # endif 115 #endif 116 117 /* Compatibility */ 118 #ifdef ENABLE_IPV6 119 #define USE_IPV6 1 120 #endif 121 122 /* 123 * Include configuration script results or hand-crafted 124 * configuration file for platforms which lack config tool. 125 */ 126 127 #ifdef HAVE_CONFIG_H 128 129 #include "curl_config.h" 130 131 #else /* HAVE_CONFIG_H */ 132 133 #ifdef _WIN32 134 # include "config-win32.h" 135 #endif 136 137 #ifdef macintosh 138 # include "config-mac.h" 139 #endif 140 141 #ifdef __riscos__ 142 # include "config-riscos.h" 143 #endif 144 145 #ifdef __OS400__ 146 # include "config-os400.h" 147 #endif 148 149 #ifdef __PLAN9__ 150 # include "config-plan9.h" 151 #endif 152 153 #endif /* HAVE_CONFIG_H */ 154 155 /* ================================================================ */ 156 /* Definition of preprocessor macros/symbols which modify compiler */ 157 /* behavior or generated code characteristics must be done here, */ 158 /* as appropriate, before any system header file is included. It is */ 159 /* also possible to have them defined in the config file included */ 160 /* before this point. As a result of all this we frown inclusion of */ 161 /* system header files in our config files, avoid this at any cost. */ 162 /* ================================================================ */ 163 164 /* 165 * AIX 4.3 and newer needs _THREAD_SAFE defined to build 166 * proper reentrant code. Others may also need it. 167 */ 168 169 #ifdef NEED_THREAD_SAFE 170 # ifndef _THREAD_SAFE 171 # define _THREAD_SAFE 172 # endif 173 #endif 174 175 /* 176 * Tru64 needs _REENTRANT set for a few function prototypes and 177 * things to appear in the system header files. Unixware needs it 178 * to build proper reentrant code. Others may also need it. 179 */ 180 181 #ifdef NEED_REENTRANT 182 # ifndef _REENTRANT 183 # define _REENTRANT 184 # endif 185 #endif 186 187 /* Solaris needs this to get a POSIX-conformant getpwuid_r */ 188 #if defined(sun) || defined(__sun) 189 # ifndef _POSIX_PTHREAD_SEMANTICS 190 # define _POSIX_PTHREAD_SEMANTICS 1 191 # endif 192 #endif 193 194 /* ================================================================ */ 195 /* If you need to include a system header file for your platform, */ 196 /* please, do it beyond the point further indicated in this file. */ 197 /* ================================================================ */ 198 199 /* Give calloc a chance to be dragging in early, so we do not redefine */ 200 #if defined(USE_THREADS_POSIX) && defined(HAVE_PTHREAD_H) 201 # include <pthread.h> 202 #endif 203 204 /* 205 * Disable other protocols when http is the only one desired. 206 */ 207 208 #ifdef HTTP_ONLY 209 # ifndef CURL_DISABLE_DICT 210 # define CURL_DISABLE_DICT 211 # endif 212 # ifndef CURL_DISABLE_FILE 213 # define CURL_DISABLE_FILE 214 # endif 215 # ifndef CURL_DISABLE_FTP 216 # define CURL_DISABLE_FTP 217 # endif 218 # ifndef CURL_DISABLE_GOPHER 219 # define CURL_DISABLE_GOPHER 220 # endif 221 # ifndef CURL_DISABLE_IMAP 222 # define CURL_DISABLE_IMAP 223 # endif 224 # ifndef CURL_DISABLE_LDAP 225 # define CURL_DISABLE_LDAP 226 # endif 227 # ifndef CURL_DISABLE_LDAPS 228 # define CURL_DISABLE_LDAPS 229 # endif 230 # ifndef CURL_DISABLE_MQTT 231 # define CURL_DISABLE_MQTT 232 # endif 233 # ifndef CURL_DISABLE_POP3 234 # define CURL_DISABLE_POP3 235 # endif 236 # ifndef CURL_DISABLE_RTSP 237 # define CURL_DISABLE_RTSP 238 # endif 239 # ifndef CURL_DISABLE_SMB 240 # define CURL_DISABLE_SMB 241 # endif 242 # ifndef CURL_DISABLE_SMTP 243 # define CURL_DISABLE_SMTP 244 # endif 245 # ifndef CURL_DISABLE_TELNET 246 # define CURL_DISABLE_TELNET 247 # endif 248 # ifndef CURL_DISABLE_TFTP 249 # define CURL_DISABLE_TFTP 250 # endif 251 #endif 252 253 /* 254 * When http is disabled rtsp is not supported. 255 */ 256 257 #if defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_RTSP) 258 # define CURL_DISABLE_RTSP 259 #endif 260 261 /* 262 * When HTTP is disabled, disable HTTP-only features 263 */ 264 265 #if defined(CURL_DISABLE_HTTP) 266 # define CURL_DISABLE_ALTSVC 1 267 # define CURL_DISABLE_COOKIES 1 268 # define CURL_DISABLE_BASIC_AUTH 1 269 # define CURL_DISABLE_BEARER_AUTH 1 270 # define CURL_DISABLE_AWS 1 271 # define CURL_DISABLE_DOH 1 272 # define CURL_DISABLE_FORM_API 1 273 # define CURL_DISABLE_HEADERS_API 1 274 # define CURL_DISABLE_HSTS 1 275 # define CURL_DISABLE_HTTP_AUTH 1 276 #endif 277 278 /* ================================================================ */ 279 /* No system header file shall be included in this file before this */ 280 /* point. */ 281 /* ================================================================ */ 282 283 /* 284 * OS/400 setup file includes some system headers. 285 */ 286 287 #ifdef __OS400__ 288 # include "setup-os400.h" 289 #endif 290 291 /* 292 * VMS setup file includes some system headers. 293 */ 294 295 #ifdef __VMS 296 # include "setup-vms.h" 297 #endif 298 299 /* 300 * Windows setup file includes some system headers. 301 */ 302 303 #ifdef _WIN32 304 # include "setup-win32.h" 305 #endif 306 307 #include <curl/system.h> 308 309 /* Helper macro to expand and concatenate two macros. 310 * Direct macros concatenation does not work because macros 311 * are not expanded before direct concatenation. 312 */ 313 #define CURL_CONC_MACROS_(A,B) A ## B 314 #define CURL_CONC_MACROS(A,B) CURL_CONC_MACROS_(A,B) 315 316 /* curl uses its own printf() function internally. It understands the GNU 317 * format. Use this format, so that is matches the GNU format attribute we 318 * use with the MinGW compiler, allowing it to verify them at compile-time. 319 */ 320 #ifdef __MINGW32__ 321 # undef CURL_FORMAT_CURL_OFF_T 322 # undef CURL_FORMAT_CURL_OFF_TU 323 # define CURL_FORMAT_CURL_OFF_T "lld" 324 # define CURL_FORMAT_CURL_OFF_TU "llu" 325 #endif 326 327 /* based on logic in "curl/mprintf.h" */ 328 329 #if (defined(__GNUC__) || defined(__clang__) || \ 330 defined(__IAR_SYSTEMS_ICC__)) && \ 331 defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \ 332 !defined(CURL_NO_FMT_CHECKS) 333 #if defined(__MINGW32__) && !defined(__clang__) 334 #define CURL_PRINTF(fmt, arg) \ 335 __attribute__((format(gnu_printf, fmt, arg))) 336 #else 337 #define CURL_PRINTF(fmt, arg) \ 338 __attribute__((format(__printf__, fmt, arg))) 339 #endif 340 #else 341 #define CURL_PRINTF(fmt, arg) 342 #endif 343 344 /* Override default printf mask check rules in "curl/mprintf.h" */ 345 #define CURL_TEMP_PRINTF CURL_PRINTF 346 347 /* Workaround for mainline llvm v16 and earlier missing a built-in macro 348 expected by macOS SDK v14 / Xcode v15 (2023) and newer. 349 gcc (as of v14) is also missing it. */ 350 #if defined(__APPLE__) && \ 351 ((!defined(__apple_build_version__) && \ 352 defined(__clang__) && __clang_major__ < 17) || \ 353 (defined(__GNUC__) && __GNUC__ <= 14)) && \ 354 defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \ 355 !defined(__ENVIRONMENT_OS_VERSION_MIN_REQUIRED__) 356 #define __ENVIRONMENT_OS_VERSION_MIN_REQUIRED__ \ 357 __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ 358 #endif 359 360 /* 361 * Use getaddrinfo to resolve the IPv4 address literal. If the current network 362 * interface does not support IPv4, but supports IPv6, NAT64, and DNS64, 363 * performing this task will result in a synthesized IPv6 address. 364 */ 365 #if defined(__APPLE__) && !defined(USE_ARES) 366 #define USE_RESOLVE_ON_IPS 1 367 # if TARGET_OS_MAC && !(defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE) && \ 368 defined(USE_IPV6) 369 # define CURL_MACOS_CALL_COPYPROXIES 1 370 # endif 371 #endif 372 373 #ifdef USE_ARES 374 # ifndef CARES_NO_DEPRECATED 375 # define CARES_NO_DEPRECATED /* for ares_getsock() */ 376 # endif 377 # if defined(CURL_STATICLIB) && !defined(CARES_STATICLIB) && defined(_WIN32) 378 # define CARES_STATICLIB /* define it before including ares.h */ 379 # endif 380 #endif 381 382 #ifdef USE_LWIPSOCK 383 # include <lwip/init.h> 384 # include <lwip/sockets.h> 385 # include <lwip/netdb.h> 386 #endif 387 388 #ifdef macintosh 389 # include <extra/stricmp.h> 390 # include <extra/strdup.h> 391 #endif 392 393 #ifdef __AMIGA__ 394 # ifdef __amigaos4__ 395 # define __USE_INLINE__ 396 /* use our own resolver which uses runtime feature detection */ 397 # define CURLRES_AMIGA 398 /* getaddrinfo() currently crashes bsdsocket.library, so disable */ 399 # undef HAVE_GETADDRINFO 400 # if !(defined(__NEWLIB__) || \ 401 (defined(__CLIB2__) && defined(__THREAD_SAFE))) 402 /* disable threaded resolver with clib2 - requires newlib or clib-ts */ 403 # undef USE_THREADS_POSIX 404 # endif 405 # endif 406 # include <exec/types.h> 407 # include <exec/execbase.h> 408 # include <proto/exec.h> 409 # include <proto/dos.h> 410 # include <unistd.h> 411 # if defined(HAVE_PROTO_BSDSOCKET_H) && \ 412 (!defined(__amigaos4__) || defined(USE_AMISSL)) 413 /* use bsdsocket.library directly, instead of libc networking functions */ 414 # define _SYS_MBUF_H /* m_len define clashes with curl */ 415 # include <proto/bsdsocket.h> 416 # ifdef __amigaos4__ 417 int Curl_amiga_select(int nfds, fd_set *readfds, fd_set *writefds, 418 fd_set *errorfds, struct timeval *timeout); 419 # define select(a,b,c,d,e) Curl_amiga_select(a,b,c,d,e) 420 # else 421 # define select(a,b,c,d,e) WaitSelect(a,b,c,d,e,0) 422 # endif 423 /* must not use libc's fcntl() on bsdsocket.library sockfds! */ 424 # undef HAVE_FCNTL 425 # undef HAVE_FCNTL_O_NONBLOCK 426 # else 427 /* use libc networking and hence close() and fnctl() */ 428 # undef HAVE_CLOSESOCKET_CAMEL 429 # undef HAVE_IOCTLSOCKET_CAMEL 430 # endif 431 /* 432 * In clib2 arpa/inet.h warns that some prototypes may clash 433 * with bsdsocket.library. This avoids the definition of those. 434 */ 435 # define __NO_NET_API 436 #endif 437 438 #include <stdio.h> 439 #include <assert.h> 440 441 #ifdef __TANDEM /* for ns*-tandem-nsk systems */ 442 # if ! defined __LP64 443 # include <floss.h> /* FLOSS is only used for 32-bit builds. */ 444 # endif 445 #endif 446 447 #ifndef STDC_HEADERS /* no standard C headers! */ 448 #include <curl/stdcheaders.h> 449 #endif 450 451 #ifdef _WIN32 452 #define Curl_getpid() GetCurrentProcessId() 453 #else 454 #define Curl_getpid() getpid() 455 #endif 456 457 /* 458 * Large file (>2Gb) support using Win32 functions. 459 */ 460 461 #ifdef USE_WIN32_LARGE_FILES 462 # include <io.h> 463 # include <sys/types.h> 464 # include <sys/stat.h> 465 # undef lseek 466 # define lseek(fdes,offset,whence) _lseeki64(fdes, offset, whence) 467 # undef fstat 468 # define fstat(fdes,stp) _fstati64(fdes, stp) 469 # undef stat 470 # define stat(fname,stp) curlx_win32_stat(fname, stp) 471 # define struct_stat struct _stati64 472 # define LSEEK_ERROR (__int64)-1 473 # define open curlx_win32_open 474 # define fopen(fname,mode) curlx_win32_fopen(fname, mode) 475 int curlx_win32_open(const char *filename, int oflag, ...); 476 int curlx_win32_stat(const char *path, struct_stat *buffer); 477 FILE *curlx_win32_fopen(const char *filename, const char *mode); 478 #endif 479 480 #ifdef __DJGPP__ 481 /* Requires DJGPP 2.04 */ 482 # include <unistd.h> 483 # undef lseek 484 # define lseek(fdes,offset,whence) llseek(fdes, offset, whence) 485 # define LSEEK_ERROR (offset_t)-1 486 #endif 487 488 /* 489 * Small file (<2Gb) support using Win32 functions. 490 */ 491 492 #if defined(_WIN32) && !defined(USE_WIN32_LARGE_FILES) 493 # include <io.h> 494 # include <sys/types.h> 495 # include <sys/stat.h> 496 # ifndef _WIN32_WCE 497 # undef lseek 498 # define lseek(fdes,offset,whence) _lseek(fdes, (long)offset, whence) 499 # define fstat(fdes,stp) _fstat(fdes, stp) 500 # define stat(fname,stp) curlx_win32_stat(fname, stp) 501 # define struct_stat struct _stat 502 # define open curlx_win32_open 503 # define fopen(fname,mode) curlx_win32_fopen(fname, mode) 504 int curlx_win32_stat(const char *path, struct_stat *buffer); 505 int curlx_win32_open(const char *filename, int oflag, ...); 506 FILE *curlx_win32_fopen(const char *filename, const char *mode); 507 # endif 508 # define LSEEK_ERROR (long)-1 509 #endif 510 511 #ifndef struct_stat 512 #define struct_stat struct stat 513 #endif 514 515 #ifndef LSEEK_ERROR 516 #define LSEEK_ERROR (off_t)-1 517 #endif 518 519 #ifndef SIZEOF_TIME_T 520 /* assume default size of time_t to be 32 bits */ 521 #define SIZEOF_TIME_T 4 522 #endif 523 524 #ifndef SIZEOF_CURL_SOCKET_T 525 /* configure and cmake check and set the define */ 526 # ifdef _WIN64 527 # define SIZEOF_CURL_SOCKET_T 8 528 # else 529 /* default guess */ 530 # define SIZEOF_CURL_SOCKET_T 4 531 # endif 532 #endif 533 534 #if SIZEOF_CURL_SOCKET_T < 8 535 # define FMT_SOCKET_T "d" 536 #elif defined(__MINGW32__) 537 # define FMT_SOCKET_T "zd" 538 #else 539 # define FMT_SOCKET_T "qd" 540 #endif 541 542 /* 543 * Default sizeof(off_t) in case it has not been defined in config file. 544 */ 545 546 #ifndef SIZEOF_OFF_T 547 # if defined(__VMS) && !defined(__VAX) 548 # if defined(_LARGEFILE) 549 # define SIZEOF_OFF_T 8 550 # endif 551 # elif defined(__OS400__) && defined(__ILEC400__) 552 # if defined(_LARGE_FILES) 553 # define SIZEOF_OFF_T 8 554 # endif 555 # elif defined(__MVS__) && defined(__IBMC__) 556 # if defined(_LP64) || defined(_LARGE_FILES) 557 # define SIZEOF_OFF_T 8 558 # endif 559 # elif defined(__370__) && defined(__IBMC__) 560 # if defined(_LP64) || defined(_LARGE_FILES) 561 # define SIZEOF_OFF_T 8 562 # endif 563 # endif 564 # ifndef SIZEOF_OFF_T 565 # define SIZEOF_OFF_T 4 566 # endif 567 #endif 568 569 #if (SIZEOF_CURL_OFF_T < 8) 570 #error "too small curl_off_t" 571 #else 572 /* assume SIZEOF_CURL_OFF_T == 8 */ 573 # define CURL_OFF_T_MAX CURL_OFF_T_C(0x7FFFFFFFFFFFFFFF) 574 #endif 575 #define CURL_OFF_T_MIN (-CURL_OFF_T_MAX - CURL_OFF_T_C(1)) 576 577 #if (SIZEOF_CURL_OFF_T != 8) 578 # error "curl_off_t must be exactly 64 bits" 579 #else 580 typedef unsigned CURL_TYPEOF_CURL_OFF_T curl_uint64_t; 581 typedef CURL_TYPEOF_CURL_OFF_T curl_int64_t; 582 # ifndef CURL_SUFFIX_CURL_OFF_TU 583 # error "CURL_SUFFIX_CURL_OFF_TU must be defined" 584 # endif 585 # define CURL_UINT64_SUFFIX CURL_SUFFIX_CURL_OFF_TU 586 # define CURL_UINT64_C(val) CURL_CONC_MACROS(val,CURL_UINT64_SUFFIX) 587 # define FMT_PRId64 CURL_FORMAT_CURL_OFF_T 588 # define FMT_PRIu64 CURL_FORMAT_CURL_OFF_TU 589 #endif 590 591 #define FMT_OFF_T CURL_FORMAT_CURL_OFF_T 592 #define FMT_OFF_TU CURL_FORMAT_CURL_OFF_TU 593 594 #if (SIZEOF_TIME_T == 4) 595 # ifdef HAVE_TIME_T_UNSIGNED 596 # define TIME_T_MAX UINT_MAX 597 # define TIME_T_MIN 0 598 # else 599 # define TIME_T_MAX INT_MAX 600 # define TIME_T_MIN INT_MIN 601 # endif 602 #else 603 # ifdef HAVE_TIME_T_UNSIGNED 604 # define TIME_T_MAX 0xFFFFFFFFFFFFFFFF 605 # define TIME_T_MIN 0 606 # else 607 # define TIME_T_MAX 0x7FFFFFFFFFFFFFFF 608 # define TIME_T_MIN (-TIME_T_MAX - 1) 609 # endif 610 #endif 611 612 #ifndef SIZE_T_MAX 613 /* some limits.h headers have this defined, some do not */ 614 #if defined(SIZEOF_SIZE_T) && (SIZEOF_SIZE_T > 4) 615 #define SIZE_T_MAX 18446744073709551615U 616 #else 617 #define SIZE_T_MAX 4294967295U 618 #endif 619 #endif 620 621 #ifndef SSIZE_T_MAX 622 /* some limits.h headers have this defined, some do not */ 623 #if defined(SIZEOF_SIZE_T) && (SIZEOF_SIZE_T > 4) 624 #define SSIZE_T_MAX 9223372036854775807 625 #else 626 #define SSIZE_T_MAX 2147483647 627 #endif 628 #endif 629 630 /* 631 * Arg 2 type for gethostname in case it has not been defined in config file. 632 */ 633 634 #ifndef GETHOSTNAME_TYPE_ARG2 635 # ifdef USE_WINSOCK 636 # define GETHOSTNAME_TYPE_ARG2 int 637 # else 638 # define GETHOSTNAME_TYPE_ARG2 size_t 639 # endif 640 #endif 641 642 /* Below we define some functions. They should 643 644 4. set the SIGALRM signal timeout 645 5. set dir/file naming defines 646 */ 647 648 #ifdef _WIN32 649 650 # define DIR_CHAR "\\" 651 652 #else /* _WIN32 */ 653 654 # ifdef MSDOS /* Watt-32 */ 655 656 # include <sys/ioctl.h> 657 # define select(n,r,w,x,t) select_s(n,r,w,x,t) 658 # define ioctl(x,y,z) ioctlsocket(x,y,(char *)(z)) 659 # include <tcp.h> 660 # ifdef word 661 # undef word 662 # endif 663 # ifdef byte 664 # undef byte 665 # endif 666 667 # endif /* MSDOS */ 668 669 # ifdef __minix 670 /* Minix 3 versions up to at least 3.1.3 are missing these prototypes */ 671 extern char *strtok_r(char *s, const char *delim, char **last); 672 extern struct tm *gmtime_r(const time_t * const timep, struct tm *tmp); 673 # endif 674 675 # define DIR_CHAR "/" 676 677 #endif /* _WIN32 */ 678 679 /* ---------------------------------------------------------------- */ 680 /* resolver specialty compile-time defines */ 681 /* CURLRES_* defines to use in the host*.c sources */ 682 /* ---------------------------------------------------------------- */ 683 684 /* 685 * MSVC threads support requires a multi-threaded runtime library. 686 * _beginthreadex() is not available in single-threaded ones. 687 * Single-threaded option was last available in VS2005: _MSC_VER <= 1400 688 */ 689 #if defined(_MSC_VER) && !defined(_MT) /* available in _MSC_VER <= 1400 */ 690 # undef USE_THREADS_POSIX 691 # undef USE_THREADS_WIN32 692 #endif 693 694 /* 695 * Mutually exclusive CURLRES_* definitions. 696 */ 697 698 #if defined(USE_IPV6) && defined(HAVE_GETADDRINFO) 699 # define CURLRES_IPV6 700 #elif defined(USE_IPV6) && (defined(_WIN32) || defined(__CYGWIN__)) 701 /* assume on Windows that IPv6 without getaddrinfo is a broken build */ 702 # error "Unexpected build: IPv6 is enabled but getaddrinfo was not found." 703 #else 704 # define CURLRES_IPV4 705 #endif 706 707 #if defined(USE_THREADS_POSIX) || defined(USE_THREADS_WIN32) 708 # define CURLRES_ASYNCH 709 # define CURLRES_THREADED 710 #elif defined(USE_ARES) 711 # define CURLRES_ASYNCH 712 # define CURLRES_ARES 713 /* now undef the stock libc functions just to avoid them being used */ 714 # undef HAVE_GETADDRINFO 715 # undef HAVE_FREEADDRINFO 716 #else 717 # define CURLRES_SYNCH 718 #endif 719 720 /* ---------------------------------------------------------------- */ 721 722 #if defined(HAVE_LIBIDN2) && defined(HAVE_IDN2_H) && \ 723 !defined(USE_WIN32_IDN) && !defined(USE_APPLE_IDN) 724 /* The lib and header are present */ 725 #define USE_LIBIDN2 726 #endif 727 728 #if defined(USE_LIBIDN2) && (defined(USE_WIN32_IDN) || defined(USE_APPLE_IDN)) 729 #error "libidn2 cannot be enabled with WinIDN or AppleIDN, choose one." 730 #endif 731 732 #if defined(USE_GNUTLS) || defined(USE_OPENSSL) || defined(USE_MBEDTLS) || \ 733 defined(USE_WOLFSSL) || defined(USE_SCHANNEL) || defined(USE_SECTRANSP) || \ 734 defined(USE_BEARSSL) || defined(USE_RUSTLS) 735 #define USE_SSL /* SSL support has been enabled */ 736 #endif 737 738 #if defined(USE_OPENSSL) && defined(USE_WOLFSSL) 739 # include <wolfssl/version.h> 740 # if LIBWOLFSSL_VERSION_HEX >= 0x05007006 741 # ifndef OPENSSL_COEXIST 742 # define OPENSSL_COEXIST 743 # endif 744 # else 745 # error "OpenSSL can only coexist with wolfSSL v5.7.6 or upper" 746 # endif 747 #endif 748 749 #if defined(USE_WOLFSSL) && defined(USE_GNUTLS) 750 /* Avoid defining unprefixed wolfSSL SHA macros colliding with nettle ones */ 751 #define NO_OLD_WC_NAMES 752 #endif 753 754 /* Single point where USE_SPNEGO definition might be defined */ 755 #if !defined(CURL_DISABLE_NEGOTIATE_AUTH) && \ 756 (defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)) 757 #define USE_SPNEGO 758 #endif 759 760 /* Single point where USE_KERBEROS5 definition might be defined */ 761 #if !defined(CURL_DISABLE_KERBEROS_AUTH) && \ 762 (defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)) 763 #define USE_KERBEROS5 764 #endif 765 766 /* Single point where USE_NTLM definition might be defined */ 767 #if !defined(CURL_DISABLE_NTLM) 768 # if defined(USE_OPENSSL) || defined(USE_MBEDTLS) || \ 769 defined(USE_GNUTLS) || defined(USE_SECTRANSP) || \ 770 defined(USE_OS400CRYPTO) || defined(USE_WIN32_CRYPTO) || \ 771 (defined(USE_WOLFSSL) && defined(HAVE_WOLFSSL_DES_ECB_ENCRYPT)) 772 # define USE_CURL_NTLM_CORE 773 # endif 774 # if defined(USE_CURL_NTLM_CORE) || defined(USE_WINDOWS_SSPI) 775 # define USE_NTLM 776 # endif 777 #endif 778 779 #if defined(USE_LIBSSH2) || defined(USE_LIBSSH) || defined(USE_WOLFSSH) 780 #define USE_SSH 781 #endif 782 783 /* 784 * Provide a mechanism to silence picky compilers, such as gcc 4.6+. 785 * Parameters should of course normally not be unused, but for example when 786 * we have multiple implementations of the same interface it may happen. 787 */ 788 789 #if defined(__GNUC__) && ((__GNUC__ >= 3) || \ 790 ((__GNUC__ == 2) && defined(__GNUC_MINOR__) && (__GNUC_MINOR__ >= 7))) 791 # define UNUSED_PARAM __attribute__((__unused__)) 792 # define WARN_UNUSED_RESULT __attribute__((warn_unused_result)) 793 #elif defined(__IAR_SYSTEMS_ICC__) 794 # define UNUSED_PARAM __attribute__((__unused__)) 795 # if (__VER__ >= 9040001) 796 # define WARN_UNUSED_RESULT __attribute__((warn_unused_result)) 797 # else 798 # define WARN_UNUSED_RESULT 799 # endif 800 #else 801 # define UNUSED_PARAM /* NOTHING */ 802 # define WARN_UNUSED_RESULT 803 #endif 804 805 /* noreturn attribute */ 806 807 #if !defined(CURL_NORETURN) 808 #if (defined(__GNUC__) && (__GNUC__ >= 3)) || defined(__clang__) || \ 809 defined(__IAR_SYSTEMS_ICC__) 810 # define CURL_NORETURN __attribute__((__noreturn__)) 811 #elif defined(_MSC_VER) 812 # define CURL_NORETURN __declspec(noreturn) 813 #else 814 # define CURL_NORETURN 815 #endif 816 #endif 817 818 /* fallthrough attribute */ 819 820 #if !defined(FALLTHROUGH) 821 #if (defined(__GNUC__) && __GNUC__ >= 7) || \ 822 (defined(__clang__) && __clang_major__ >= 10) 823 # define FALLTHROUGH() __attribute__((fallthrough)) 824 #else 825 # define FALLTHROUGH() do {} while (0) 826 #endif 827 #endif 828 829 /* 830 * Include macros and defines that should only be processed once. 831 */ 832 833 #ifndef HEADER_CURL_SETUP_ONCE_H 834 #include "curl_setup_once.h" 835 #endif 836 837 /* 838 * Definition of our NOP statement Object-like macro 839 */ 840 841 #ifndef Curl_nop_stmt 842 #define Curl_nop_stmt do { } while(0) 843 #endif 844 845 /* 846 * Ensure that Winsock and lwIP TCP/IP stacks are not mixed. 847 */ 848 849 #if defined(__LWIP_OPT_H__) || defined(LWIP_HDR_OPT_H) 850 # if defined(SOCKET) || defined(USE_WINSOCK) 851 # error "Winsock and lwIP TCP/IP stack definitions shall not coexist!" 852 # endif 853 #endif 854 855 /* 856 * shutdown() flags for systems that do not define them 857 */ 858 859 #ifndef SHUT_RD 860 #define SHUT_RD 0x00 861 #endif 862 863 #ifndef SHUT_WR 864 #define SHUT_WR 0x01 865 #endif 866 867 #ifndef SHUT_RDWR 868 #define SHUT_RDWR 0x02 869 #endif 870 871 /* Define S_ISREG if not defined by system headers, e.g. MSVC */ 872 #if !defined(S_ISREG) && defined(S_IFMT) && defined(S_IFREG) 873 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) 874 #endif 875 876 /* Define S_ISDIR if not defined by system headers, e.g. MSVC */ 877 #if !defined(S_ISDIR) && defined(S_IFMT) && defined(S_IFDIR) 878 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) 879 #endif 880 881 /* Since O_BINARY is used in bitmasks, setting it to zero makes it usable in 882 source code but yet it does not ruin anything */ 883 #ifdef O_BINARY 884 #define CURL_O_BINARY O_BINARY 885 #else 886 #define CURL_O_BINARY 0 887 #endif 888 889 /* In Windows the default file mode is text but an application can override it. 890 Therefore we specify it explicitly. https://github.com/curl/curl/pull/258 891 */ 892 #if defined(_WIN32) || defined(MSDOS) 893 #define FOPEN_READTEXT "rt" 894 #define FOPEN_WRITETEXT "wt" 895 #define FOPEN_APPENDTEXT "at" 896 #elif defined(__CYGWIN__) 897 /* Cygwin has specific behavior we need to address when _WIN32 is not defined. 898 https://cygwin.com/cygwin-ug-net/using-textbinary.html 899 For write we want our output to have line endings of LF and be compatible with 900 other Cygwin utilities. For read we want to handle input that may have line 901 endings either CRLF or LF so 't' is appropriate. 902 */ 903 #define FOPEN_READTEXT "rt" 904 #define FOPEN_WRITETEXT "w" 905 #define FOPEN_APPENDTEXT "a" 906 #else 907 #define FOPEN_READTEXT "r" 908 #define FOPEN_WRITETEXT "w" 909 #define FOPEN_APPENDTEXT "a" 910 #endif 911 912 /* for systems that do not detect this in configure */ 913 #ifndef CURL_SA_FAMILY_T 914 # if defined(HAVE_SA_FAMILY_T) 915 # define CURL_SA_FAMILY_T sa_family_t 916 # elif defined(HAVE_ADDRESS_FAMILY) 917 # define CURL_SA_FAMILY_T ADDRESS_FAMILY 918 # elif defined(__AMIGA__) 919 # define CURL_SA_FAMILY_T unsigned char 920 # else 921 /* use a sensible default */ 922 # define CURL_SA_FAMILY_T unsigned short 923 # endif 924 #endif 925 926 /* Some convenience macros to get the larger/smaller value out of two given. 927 We prefix with CURL to prevent name collisions. */ 928 #define CURLMAX(x,y) ((x)>(y)?(x):(y)) 929 #define CURLMIN(x,y) ((x)<(y)?(x):(y)) 930 931 /* A convenience macro to provide both the string literal and the length of 932 the string literal in one go, useful for functions that take "string,len" 933 as their argument */ 934 #define STRCONST(x) x,sizeof(x)-1 935 936 /* Some versions of the Android NDK is missing the declaration */ 937 #if defined(HAVE_GETPWUID_R) && \ 938 defined(__ANDROID_API__) && (__ANDROID_API__ < 21) 939 struct passwd; 940 int getpwuid_r(uid_t uid, struct passwd *pwd, char *buf, 941 size_t buflen, struct passwd **result); 942 #endif 943 944 #ifdef UNITTESTS 945 #define UNITTEST 946 #else 947 #define UNITTEST static 948 #endif 949 950 #ifdef USE_NGHTTP2 951 #define USE_HTTP2 952 #endif 953 954 #if (defined(USE_NGTCP2) && defined(USE_NGHTTP3)) || \ 955 (defined(USE_OPENSSL_QUIC) && defined(USE_NGHTTP3)) || \ 956 defined(USE_QUICHE) || defined(USE_MSH3) 957 958 #ifdef CURL_WITH_MULTI_SSL 959 #error "MultiSSL combined with QUIC is not supported" 960 #endif 961 962 #define USE_HTTP3 963 #endif 964 965 /* Certain Windows implementations are not aligned with what curl expects, 966 so always use the local one on this platform. E.g. the mingw-w64 967 implementation can return wrong results for non-ASCII inputs. */ 968 #if defined(HAVE_BASENAME) && defined(_WIN32) 969 #undef HAVE_BASENAME 970 #endif 971 972 #if defined(USE_UNIX_SOCKETS) && defined(_WIN32) 973 # if !defined(UNIX_PATH_MAX) 974 /* Replicating logic present in afunix.h 975 (distributed with newer Windows 10 SDK versions only) */ 976 # define UNIX_PATH_MAX 108 977 /* !checksrc! disable TYPEDEFSTRUCT 1 */ 978 typedef struct sockaddr_un { 979 CURL_SA_FAMILY_T sun_family; 980 char sun_path[UNIX_PATH_MAX]; 981 } SOCKADDR_UN, *PSOCKADDR_UN; 982 # define WIN32_SOCKADDR_UN 983 # endif 984 #endif 985 986 /* OpenSSLv3 marks DES, MD5 and ENGINE functions deprecated but we have no 987 replacements (yet) so tell the compiler to not warn for them. */ 988 #ifdef USE_OPENSSL 989 #define OPENSSL_SUPPRESS_DEPRECATED 990 #endif 991 992 #if defined(CURL_INLINE) 993 /* 'CURL_INLINE' defined, use as-is */ 994 #elif defined(inline) 995 # define CURL_INLINE inline /* 'inline' defined, assumed correct */ 996 #elif defined(__cplusplus) 997 /* The code is compiled with C++ compiler. 998 C++ always supports 'inline'. */ 999 # define CURL_INLINE inline /* 'inline' keyword supported */ 1000 #elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901 1001 /* C99 (and later) supports 'inline' keyword */ 1002 # define CURL_INLINE inline /* 'inline' keyword supported */ 1003 #elif defined(__GNUC__) && __GNUC__ >= 3 1004 /* GCC supports '__inline__' as an extension */ 1005 # define CURL_INLINE __inline__ 1006 #elif defined(_MSC_VER) 1007 # define CURL_INLINE __inline 1008 #else 1009 /* Probably 'inline' is not supported by compiler. 1010 Define to the empty string to be on the safe side. */ 1011 # define CURL_INLINE /* empty */ 1012 #endif 1013 1014 #endif /* HEADER_CURL_SETUP_H */ 1015