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      1 #ifndef HEADER_CURL_SETUP_H
      2 #define HEADER_CURL_SETUP_H
      3 /***************************************************************************
      4  *                                  _   _ ____  _
      5  *  Project                     ___| | | |  _ \| |
      6  *                             / __| | | | |_) | |
      7  *                            | (__| |_| |  _ <| |___
      8  *                             \___|\___/|_| \_\_____|
      9  *
     10  * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel (at) 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.haxx.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  ***************************************************************************/
     24 
     25 #if defined(BUILDING_LIBCURL) && !defined(CURL_NO_OLDIES)
     26 #define CURL_NO_OLDIES
     27 #endif
     28 
     29 /*
     30  * Define WIN32 when build target is Win32 API
     31  */
     32 
     33 #if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32) && \
     34     !defined(__SYMBIAN32__)
     35 #define WIN32
     36 #endif
     37 
     38 #ifdef WIN32
     39 /*
     40  * Don't include unneeded stuff in Windows headers to avoid compiler
     41  * warnings and macro clashes.
     42  * Make sure to define this macro before including any Windows headers.
     43  */
     44 #  ifndef WIN32_LEAN_AND_MEAN
     45 #    define WIN32_LEAN_AND_MEAN
     46 #  endif
     47 #  ifndef NOGDI
     48 #    define NOGDI
     49 #  endif
     50 #endif
     51 
     52 /*
     53  * Include configuration script results or hand-crafted
     54  * configuration file for platforms which lack config tool.
     55  */
     56 
     57 #ifdef HAVE_CONFIG_H
     58 
     59 #include "curl_config.h"
     60 
     61 #else /* HAVE_CONFIG_H */
     62 
     63 #ifdef _WIN32_WCE
     64 #  include "config-win32ce.h"
     65 #else
     66 #  ifdef WIN32
     67 #    include "config-win32.h"
     68 #  endif
     69 #endif
     70 
     71 #if defined(macintosh) && defined(__MRC__)
     72 #  include "config-mac.h"
     73 #endif
     74 
     75 #ifdef __riscos__
     76 #  include "config-riscos.h"
     77 #endif
     78 
     79 #ifdef __AMIGA__
     80 #  include "config-amigaos.h"
     81 #endif
     82 
     83 #ifdef __SYMBIAN32__
     84 #  include "config-symbian.h"
     85 #endif
     86 
     87 #ifdef __OS400__
     88 #  include "config-os400.h"
     89 #endif
     90 
     91 #ifdef TPF
     92 #  include "config-tpf.h"
     93 #endif
     94 
     95 #ifdef __VXWORKS__
     96 #  include "config-vxworks.h"
     97 #endif
     98 
     99 #endif /* HAVE_CONFIG_H */
    100 
    101 /* ================================================================ */
    102 /* Definition of preprocessor macros/symbols which modify compiler  */
    103 /* behavior or generated code characteristics must be done here,   */
    104 /* as appropriate, before any system header file is included. It is */
    105 /* also possible to have them defined in the config file included   */
    106 /* before this point. As a result of all this we frown inclusion of */
    107 /* system header files in our config files, avoid this at any cost. */
    108 /* ================================================================ */
    109 
    110 /*
    111  * AIX 4.3 and newer needs _THREAD_SAFE defined to build
    112  * proper reentrant code. Others may also need it.
    113  */
    114 
    115 #ifdef NEED_THREAD_SAFE
    116 #  ifndef _THREAD_SAFE
    117 #    define _THREAD_SAFE
    118 #  endif
    119 #endif
    120 
    121 /*
    122  * Tru64 needs _REENTRANT set for a few function prototypes and
    123  * things to appear in the system header files. Unixware needs it
    124  * to build proper reentrant code. Others may also need it.
    125  */
    126 
    127 #ifdef NEED_REENTRANT
    128 #  ifndef _REENTRANT
    129 #    define _REENTRANT
    130 #  endif
    131 #endif
    132 
    133 /* Solaris needs this to get a POSIX-conformant getpwuid_r */
    134 #if defined(sun) || defined(__sun)
    135 #  ifndef _POSIX_PTHREAD_SEMANTICS
    136 #    define _POSIX_PTHREAD_SEMANTICS 1
    137 #  endif
    138 #endif
    139 
    140 /* ================================================================ */
    141 /*  If you need to include a system header file for your platform,  */
    142 /*  please, do it beyond the point further indicated in this file.  */
    143 /* ================================================================ */
    144 
    145 #include <curl/curl.h>
    146 
    147 #define CURL_SIZEOF_CURL_OFF_T SIZEOF_CURL_OFF_T
    148 
    149 /*
    150  * Disable other protocols when http is the only one desired.
    151  */
    152 
    153 #ifdef HTTP_ONLY
    154 #  ifndef CURL_DISABLE_TFTP
    155 #    define CURL_DISABLE_TFTP
    156 #  endif
    157 #  ifndef CURL_DISABLE_FTP
    158 #    define CURL_DISABLE_FTP
    159 #  endif
    160 #  ifndef CURL_DISABLE_LDAP
    161 #    define CURL_DISABLE_LDAP
    162 #  endif
    163 #  ifndef CURL_DISABLE_TELNET
    164 #    define CURL_DISABLE_TELNET
    165 #  endif
    166 #  ifndef CURL_DISABLE_DICT
    167 #    define CURL_DISABLE_DICT
    168 #  endif
    169 #  ifndef CURL_DISABLE_FILE
    170 #    define CURL_DISABLE_FILE
    171 #  endif
    172 #  ifndef CURL_DISABLE_RTSP
    173 #    define CURL_DISABLE_RTSP
    174 #  endif
    175 #  ifndef CURL_DISABLE_POP3
    176 #    define CURL_DISABLE_POP3
    177 #  endif
    178 #  ifndef CURL_DISABLE_IMAP
    179 #    define CURL_DISABLE_IMAP
    180 #  endif
    181 #  ifndef CURL_DISABLE_SMTP
    182 #    define CURL_DISABLE_SMTP
    183 #  endif
    184 #  ifndef CURL_DISABLE_GOPHER
    185 #    define CURL_DISABLE_GOPHER
    186 #  endif
    187 #  ifndef CURL_DISABLE_SMB
    188 #    define CURL_DISABLE_SMB
    189 #  endif
    190 #endif
    191 
    192 /*
    193  * When http is disabled rtsp is not supported.
    194  */
    195 
    196 #if defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_RTSP)
    197 #  define CURL_DISABLE_RTSP
    198 #endif
    199 
    200 /* ================================================================ */
    201 /* No system header file shall be included in this file before this */
    202 /* point. The only allowed ones are those included from curl/system.h */
    203 /* ================================================================ */
    204 
    205 /*
    206  * OS/400 setup file includes some system headers.
    207  */
    208 
    209 #ifdef __OS400__
    210 #  include "setup-os400.h"
    211 #endif
    212 
    213 /*
    214  * VMS setup file includes some system headers.
    215  */
    216 
    217 #ifdef __VMS
    218 #  include "setup-vms.h"
    219 #endif
    220 
    221 /*
    222  * Use getaddrinfo to resolve the IPv4 address literal. If the current network
    223  * interface doesn't support IPv4, but supports IPv6, NAT64, and DNS64,
    224  * performing this task will result in a synthesized IPv6 address.
    225  */
    226 #ifdef  __APPLE__
    227 #define USE_RESOLVE_ON_IPS 1
    228 #endif
    229 
    230 /*
    231  * Include header files for windows builds before redefining anything.
    232  * Use this preprocessor block only to include or exclude windows.h,
    233  * winsock2.h, ws2tcpip.h or winsock.h. Any other windows thing belongs
    234  * to any other further and independent block.  Under Cygwin things work
    235  * just as under linux (e.g. <sys/socket.h>) and the winsock headers should
    236  * never be included when __CYGWIN__ is defined.  configure script takes
    237  * care of this, not defining HAVE_WINDOWS_H, HAVE_WINSOCK_H, HAVE_WINSOCK2_H,
    238  * neither HAVE_WS2TCPIP_H when __CYGWIN__ is defined.
    239  */
    240 
    241 #ifdef HAVE_WINDOWS_H
    242 #  if defined(UNICODE) && !defined(_UNICODE)
    243 #    define _UNICODE
    244 #  endif
    245 #  if defined(_UNICODE) && !defined(UNICODE)
    246 #    define UNICODE
    247 #  endif
    248 #  include <winerror.h>
    249 #  include <windows.h>
    250 #  ifdef HAVE_WINSOCK2_H
    251 #    include <winsock2.h>
    252 #    ifdef HAVE_WS2TCPIP_H
    253 #      include <ws2tcpip.h>
    254 #    endif
    255 #  else
    256 #    ifdef HAVE_WINSOCK_H
    257 #      include <winsock.h>
    258 #    endif
    259 #  endif
    260 #  include <tchar.h>
    261 #  ifdef UNICODE
    262      typedef wchar_t *(*curl_wcsdup_callback)(const wchar_t *str);
    263 #  endif
    264 #endif
    265 
    266 /*
    267  * Define USE_WINSOCK to 2 if we have and use WINSOCK2 API, else
    268  * define USE_WINSOCK to 1 if we have and use WINSOCK  API, else
    269  * undefine USE_WINSOCK.
    270  */
    271 
    272 #undef USE_WINSOCK
    273 
    274 #ifdef HAVE_WINSOCK2_H
    275 #  define USE_WINSOCK 2
    276 #else
    277 #  ifdef HAVE_WINSOCK_H
    278 #    define USE_WINSOCK 1
    279 #  endif
    280 #endif
    281 
    282 #ifdef USE_LWIPSOCK
    283 #  include <lwip/init.h>
    284 #  include <lwip/sockets.h>
    285 #  include <lwip/netdb.h>
    286 #endif
    287 
    288 #ifdef HAVE_EXTRA_STRICMP_H
    289 #  include <extra/stricmp.h>
    290 #endif
    291 
    292 #ifdef HAVE_EXTRA_STRDUP_H
    293 #  include <extra/strdup.h>
    294 #endif
    295 
    296 #ifdef TPF
    297 #  include <strings.h>    /* for bzero, strcasecmp, and strncasecmp */
    298 #  include <string.h>     /* for strcpy and strlen */
    299 #  include <stdlib.h>     /* for rand and srand */
    300 #  include <sys/socket.h> /* for select and ioctl*/
    301 #  include <netdb.h>      /* for in_addr_t definition */
    302 #  include <tpf/sysapi.h> /* for tpf_process_signals */
    303    /* change which select is used for libcurl */
    304 #  define select(a,b,c,d,e) tpf_select_libcurl(a,b,c,d,e)
    305 #endif
    306 
    307 #ifdef __VXWORKS__
    308 #  include <sockLib.h>    /* for generic BSD socket functions */
    309 #  include <ioLib.h>      /* for basic I/O interface functions */
    310 #endif
    311 
    312 #ifdef __AMIGA__
    313 #  include <exec/types.h>
    314 #  include <exec/execbase.h>
    315 #  include <proto/exec.h>
    316 #  include <proto/dos.h>
    317 #  ifdef HAVE_PROTO_BSDSOCKET_H
    318 #    include <proto/bsdsocket.h> /* ensure bsdsocket.library use */
    319 #    define select(a,b,c,d,e) WaitSelect(a,b,c,d,e,0)
    320 #  endif
    321 #endif
    322 
    323 #include <stdio.h>
    324 #ifdef HAVE_ASSERT_H
    325 #include <assert.h>
    326 #endif
    327 
    328 #ifdef __TANDEM /* for nsr-tandem-nsk systems */
    329 #include <floss.h>
    330 #endif
    331 
    332 #ifndef STDC_HEADERS /* no standard C headers! */
    333 #include <curl/stdcheaders.h>
    334 #endif
    335 
    336 #ifdef __POCC__
    337 #  include <sys/types.h>
    338 #  include <unistd.h>
    339 #  define sys_nerr EILSEQ
    340 #endif
    341 
    342 /*
    343  * Salford-C kludge section (mostly borrowed from wxWidgets).
    344  */
    345 #ifdef __SALFORDC__
    346   #pragma suppress 353             /* Possible nested comments */
    347   #pragma suppress 593             /* Define not used */
    348   #pragma suppress 61              /* enum has no name */
    349   #pragma suppress 106             /* unnamed, unused parameter */
    350   #include <clib.h>
    351 #endif
    352 
    353 /*
    354  * Large file (>2Gb) support using WIN32 functions.
    355  */
    356 
    357 #ifdef USE_WIN32_LARGE_FILES
    358 #  include <io.h>
    359 #  include <sys/types.h>
    360 #  include <sys/stat.h>
    361 #  undef  lseek
    362 #  define lseek(fdes,offset,whence)  _lseeki64(fdes, offset, whence)
    363 #  undef  fstat
    364 #  define fstat(fdes,stp)            _fstati64(fdes, stp)
    365 #  undef  stat
    366 #  define stat(fname,stp)            _stati64(fname, stp)
    367 #  define struct_stat                struct _stati64
    368 #  define LSEEK_ERROR                (__int64)-1
    369 #endif
    370 
    371 /*
    372  * Small file (<2Gb) support using WIN32 functions.
    373  */
    374 
    375 #ifdef USE_WIN32_SMALL_FILES
    376 #  include <io.h>
    377 #  include <sys/types.h>
    378 #  include <sys/stat.h>
    379 #  ifndef _WIN32_WCE
    380 #    undef  lseek
    381 #    define lseek(fdes,offset,whence)  _lseek(fdes, (long)offset, whence)
    382 #    define fstat(fdes,stp)            _fstat(fdes, stp)
    383 #    define stat(fname,stp)            _stat(fname, stp)
    384 #    define struct_stat                struct _stat
    385 #  endif
    386 #  define LSEEK_ERROR                (long)-1
    387 #endif
    388 
    389 #ifndef struct_stat
    390 #  define struct_stat struct stat
    391 #endif
    392 
    393 #ifndef LSEEK_ERROR
    394 #  define LSEEK_ERROR (off_t)-1
    395 #endif
    396 
    397 #ifndef SIZEOF_TIME_T
    398 /* assume default size of time_t to be 32 bit */
    399 #define SIZEOF_TIME_T 4
    400 #endif
    401 
    402 /*
    403  * Default sizeof(off_t) in case it hasn't been defined in config file.
    404  */
    405 
    406 #ifndef SIZEOF_OFF_T
    407 #  if defined(__VMS) && !defined(__VAX)
    408 #    if defined(_LARGEFILE)
    409 #      define SIZEOF_OFF_T 8
    410 #    endif
    411 #  elif defined(__OS400__) && defined(__ILEC400__)
    412 #    if defined(_LARGE_FILES)
    413 #      define SIZEOF_OFF_T 8
    414 #    endif
    415 #  elif defined(__MVS__) && defined(__IBMC__)
    416 #    if defined(_LP64) || defined(_LARGE_FILES)
    417 #      define SIZEOF_OFF_T 8
    418 #    endif
    419 #  elif defined(__370__) && defined(__IBMC__)
    420 #    if defined(_LP64) || defined(_LARGE_FILES)
    421 #      define SIZEOF_OFF_T 8
    422 #    endif
    423 #  endif
    424 #  ifndef SIZEOF_OFF_T
    425 #    define SIZEOF_OFF_T 4
    426 #  endif
    427 #endif
    428 
    429 #if (SIZEOF_CURL_OFF_T == 4)
    430 #  define CURL_OFF_T_MAX CURL_OFF_T_C(0x7FFFFFFF)
    431 #else
    432    /* assume CURL_SIZEOF_CURL_OFF_T == 8 */
    433 #  define CURL_OFF_T_MAX CURL_OFF_T_C(0x7FFFFFFFFFFFFFFF)
    434 #endif
    435 #define CURL_OFF_T_MIN (-CURL_OFF_T_MAX - CURL_OFF_T_C(1))
    436 
    437 #if (SIZEOF_TIME_T == 4)
    438 #  ifdef HAVE_TIME_T_UNSIGNED
    439 #  define TIME_T_MAX UINT_MAX
    440 #  define TIME_T_MIN 0
    441 #  else
    442 #  define TIME_T_MAX INT_MAX
    443 #  define TIME_T_MIN INT_MIN
    444 #  endif
    445 #else
    446 #  ifdef HAVE_TIME_T_UNSIGNED
    447 #  define TIME_T_MAX 0xFFFFFFFFFFFFFFFF
    448 #  define TIME_T_MIN 0
    449 #  else
    450 #  define TIME_T_MAX 0x7FFFFFFFFFFFFFFF
    451 #  define TIME_T_MIN (-TIME_T_MAX - 1)
    452 #  endif
    453 #endif
    454 
    455 #ifndef SIZE_T_MAX
    456 /* some limits.h headers have this defined, some don't */
    457 #if defined(SIZEOF_SIZE_T) && (SIZEOF_SIZE_T > 4)
    458 #define SIZE_T_MAX 18446744073709551615U
    459 #else
    460 #define SIZE_T_MAX 4294967295U
    461 #endif
    462 #endif
    463 
    464 /*
    465  * Arg 2 type for gethostname in case it hasn't been defined in config file.
    466  */
    467 
    468 #ifndef GETHOSTNAME_TYPE_ARG2
    469 #  ifdef USE_WINSOCK
    470 #    define GETHOSTNAME_TYPE_ARG2 int
    471 #  else
    472 #    define GETHOSTNAME_TYPE_ARG2 size_t
    473 #  endif
    474 #endif
    475 
    476 /* Below we define some functions. They should
    477 
    478    4. set the SIGALRM signal timeout
    479    5. set dir/file naming defines
    480    */
    481 
    482 #ifdef WIN32
    483 
    484 #  define DIR_CHAR      "\\"
    485 #  define DOT_CHAR      "_"
    486 
    487 #else /* WIN32 */
    488 
    489 #  ifdef MSDOS  /* Watt-32 */
    490 
    491 #    include <sys/ioctl.h>
    492 #    define select(n,r,w,x,t) select_s(n,r,w,x,t)
    493 #    define ioctl(x,y,z) ioctlsocket(x,y,(char *)(z))
    494 #    include <tcp.h>
    495 #    ifdef word
    496 #      undef word
    497 #    endif
    498 #    ifdef byte
    499 #      undef byte
    500 #    endif
    501 
    502 #  endif /* MSDOS */
    503 
    504 #  ifdef __minix
    505      /* Minix 3 versions up to at least 3.1.3 are missing these prototypes */
    506      extern char *strtok_r(char *s, const char *delim, char **last);
    507      extern struct tm *gmtime_r(const time_t * const timep, struct tm *tmp);
    508 #  endif
    509 
    510 #  define DIR_CHAR      "/"
    511 #  ifndef DOT_CHAR
    512 #    define DOT_CHAR      "."
    513 #  endif
    514 
    515 #  ifdef MSDOS
    516 #    undef DOT_CHAR
    517 #    define DOT_CHAR      "_"
    518 #  endif
    519 
    520 #  ifndef fileno /* sunos 4 have this as a macro! */
    521      int fileno(FILE *stream);
    522 #  endif
    523 
    524 #endif /* WIN32 */
    525 
    526 /*
    527  * msvc 6.0 requires PSDK in order to have INET6_ADDRSTRLEN
    528  * defined in ws2tcpip.h as well as to provide IPv6 support.
    529  * Does not apply if lwIP is used.
    530  */
    531 
    532 #if defined(_MSC_VER) && !defined(__POCC__) && !defined(USE_LWIPSOCK)
    533 #  if !defined(HAVE_WS2TCPIP_H) || \
    534      ((_MSC_VER < 1300) && !defined(INET6_ADDRSTRLEN))
    535 #    undef HAVE_GETADDRINFO_THREADSAFE
    536 #    undef HAVE_FREEADDRINFO
    537 #    undef HAVE_GETADDRINFO
    538 #    undef HAVE_GETNAMEINFO
    539 #    undef ENABLE_IPV6
    540 #  endif
    541 #endif
    542 
    543 /* ---------------------------------------------------------------- */
    544 /*             resolver specialty compile-time defines              */
    545 /*         CURLRES_* defines to use in the host*.c sources          */
    546 /* ---------------------------------------------------------------- */
    547 
    548 /*
    549  * lcc-win32 doesn't have _beginthreadex(), lacks threads support.
    550  */
    551 
    552 #if defined(__LCC__) && defined(WIN32)
    553 #  undef USE_THREADS_POSIX
    554 #  undef USE_THREADS_WIN32
    555 #endif
    556 
    557 /*
    558  * MSVC threads support requires a multi-threaded runtime library.
    559  * _beginthreadex() is not available in single-threaded ones.
    560  */
    561 
    562 #if defined(_MSC_VER) && !defined(__POCC__) && !defined(_MT)
    563 #  undef USE_THREADS_POSIX
    564 #  undef USE_THREADS_WIN32
    565 #endif
    566 
    567 /*
    568  * Mutually exclusive CURLRES_* definitions.
    569  */
    570 
    571 #ifdef USE_ARES
    572 #  define CURLRES_ASYNCH
    573 #  define CURLRES_ARES
    574 /* now undef the stock libc functions just to avoid them being used */
    575 #  undef HAVE_GETADDRINFO
    576 #  undef HAVE_FREEADDRINFO
    577 #  undef HAVE_GETHOSTBYNAME
    578 #elif defined(USE_THREADS_POSIX) || defined(USE_THREADS_WIN32)
    579 #  define CURLRES_ASYNCH
    580 #  define CURLRES_THREADED
    581 #else
    582 #  define CURLRES_SYNCH
    583 #endif
    584 
    585 #ifdef ENABLE_IPV6
    586 #  define CURLRES_IPV6
    587 #else
    588 #  define CURLRES_IPV4
    589 #endif
    590 
    591 /* ---------------------------------------------------------------- */
    592 
    593 /*
    594  * When using WINSOCK, TELNET protocol requires WINSOCK2 API.
    595  */
    596 
    597 #if defined(USE_WINSOCK) && (USE_WINSOCK != 2)
    598 #  define CURL_DISABLE_TELNET 1
    599 #endif
    600 
    601 /*
    602  * msvc 6.0 does not have struct sockaddr_storage and
    603  * does not define IPPROTO_ESP in winsock2.h. But both
    604  * are available if PSDK is properly installed.
    605  */
    606 
    607 #if defined(_MSC_VER) && !defined(__POCC__)
    608 #  if !defined(HAVE_WINSOCK2_H) || ((_MSC_VER < 1300) && !defined(IPPROTO_ESP))
    609 #    undef HAVE_STRUCT_SOCKADDR_STORAGE
    610 #  endif
    611 #endif
    612 
    613 /*
    614  * Intentionally fail to build when using msvc 6.0 without PSDK installed.
    615  * The brave of heart can circumvent this, defining ALLOW_MSVC6_WITHOUT_PSDK
    616  * in lib/config-win32.h although absolutely discouraged and unsupported.
    617  */
    618 
    619 #if defined(_MSC_VER) && !defined(__POCC__)
    620 #  if !defined(HAVE_WINDOWS_H) || ((_MSC_VER < 1300) && !defined(_FILETIME_))
    621 #    if !defined(ALLOW_MSVC6_WITHOUT_PSDK)
    622 #      error MSVC 6.0 requires "February 2003 Platform SDK" a.k.a. \
    623              "Windows Server 2003 PSDK"
    624 #    else
    625 #      define CURL_DISABLE_LDAP 1
    626 #    endif
    627 #  endif
    628 #endif
    629 
    630 #ifdef NETWARE
    631 int netware_init(void);
    632 #ifndef __NOVELL_LIBC__
    633 #include <sys/bsdskt.h>
    634 #include <sys/timeval.h>
    635 #endif
    636 #endif
    637 
    638 #if defined(HAVE_LIBIDN2) && defined(HAVE_IDN2_H) && !defined(USE_WIN32_IDN)
    639 /* The lib and header are present */
    640 #define USE_LIBIDN2
    641 #endif
    642 
    643 #if defined(USE_LIBIDN2) && defined(USE_WIN32_IDN)
    644 #error "Both libidn2 and WinIDN are enabled, choose one."
    645 #endif
    646 
    647 #define LIBIDN_REQUIRED_VERSION "0.4.1"
    648 
    649 #if defined(USE_GNUTLS) || defined(USE_OPENSSL) || defined(USE_NSS) || \
    650     defined(USE_POLARSSL) || defined(USE_MBEDTLS) || \
    651     defined(USE_CYASSL) || defined(USE_SCHANNEL) || \
    652     defined(USE_SECTRANSP) || defined(USE_GSKIT) || defined(USE_MESALINK)
    653 #define USE_SSL    /* SSL support has been enabled */
    654 #endif
    655 
    656 /* Single point where USE_SPNEGO definition might be defined */
    657 #if !defined(CURL_DISABLE_CRYPTO_AUTH) && \
    658     (defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI))
    659 #define USE_SPNEGO
    660 #endif
    661 
    662 /* Single point where USE_KERBEROS5 definition might be defined */
    663 #if !defined(CURL_DISABLE_CRYPTO_AUTH) && \
    664     (defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI))
    665 #define USE_KERBEROS5
    666 #endif
    667 
    668 /* Single point where USE_NTLM definition might be defined */
    669 #if !defined(CURL_DISABLE_NTLM) && !defined(CURL_DISABLE_CRYPTO_AUTH)
    670 #if defined(USE_OPENSSL) || defined(USE_WINDOWS_SSPI) || \
    671     defined(USE_GNUTLS) || defined(USE_NSS) || defined(USE_SECTRANSP) || \
    672     defined(USE_OS400CRYPTO) || defined(USE_WIN32_CRYPTO) || \
    673     defined(USE_MBEDTLS)
    674 
    675 #define USE_NTLM
    676 
    677 #  if defined(USE_MBEDTLS)
    678 /* Get definition of MBEDTLS_MD4_C */
    679 #  include <mbedtls/md4.h>
    680 #  endif
    681 
    682 #endif
    683 #endif
    684 
    685 #ifdef CURL_WANTS_CA_BUNDLE_ENV
    686 #error "No longer supported. Set CURLOPT_CAINFO at runtime instead."
    687 #endif
    688 
    689 /*
    690  * Provide a mechanism to silence picky compilers, such as gcc 4.6+.
    691  * Parameters should of course normally not be unused, but for example when
    692  * we have multiple implementations of the same interface it may happen.
    693  */
    694 
    695 #if defined(__GNUC__) && ((__GNUC__ >= 3) || \
    696   ((__GNUC__ == 2) && defined(__GNUC_MINOR__) && (__GNUC_MINOR__ >= 7)))
    697 #  define UNUSED_PARAM __attribute__((__unused__))
    698 #  define WARN_UNUSED_RESULT __attribute__((warn_unused_result))
    699 #else
    700 #  define UNUSED_PARAM /*NOTHING*/
    701 #  define WARN_UNUSED_RESULT
    702 #endif
    703 
    704 /*
    705  * Include macros and defines that should only be processed once.
    706  */
    707 
    708 #ifndef HEADER_CURL_SETUP_ONCE_H
    709 #include "curl_setup_once.h"
    710 #endif
    711 
    712 /*
    713  * Definition of our NOP statement Object-like macro
    714  */
    715 
    716 #ifndef Curl_nop_stmt
    717 #  define Curl_nop_stmt do { } WHILE_FALSE
    718 #endif
    719 
    720 /*
    721  * Ensure that Winsock and lwIP TCP/IP stacks are not mixed.
    722  */
    723 
    724 #if defined(__LWIP_OPT_H__) || defined(LWIP_HDR_OPT_H)
    725 #  if defined(SOCKET) || \
    726      defined(USE_WINSOCK) || \
    727      defined(HAVE_WINSOCK_H) || \
    728      defined(HAVE_WINSOCK2_H) || \
    729      defined(HAVE_WS2TCPIP_H)
    730 #    error "Winsock and lwIP TCP/IP stack definitions shall not coexist!"
    731 #  endif
    732 #endif
    733 
    734 /*
    735  * Portable symbolic names for Winsock shutdown() mode flags.
    736  */
    737 
    738 #ifdef USE_WINSOCK
    739 #  define SHUT_RD   0x00
    740 #  define SHUT_WR   0x01
    741 #  define SHUT_RDWR 0x02
    742 #endif
    743 
    744 /* Define S_ISREG if not defined by system headers, f.e. MSVC */
    745 #if !defined(S_ISREG) && defined(S_IFMT) && defined(S_IFREG)
    746 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
    747 #endif
    748 
    749 /* Define S_ISDIR if not defined by system headers, f.e. MSVC */
    750 #if !defined(S_ISDIR) && defined(S_IFMT) && defined(S_IFDIR)
    751 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
    752 #endif
    753 
    754 /* In Windows the default file mode is text but an application can override it.
    755 Therefore we specify it explicitly. https://github.com/curl/curl/pull/258
    756 */
    757 #if defined(WIN32) || defined(MSDOS)
    758 #define FOPEN_READTEXT "rt"
    759 #define FOPEN_WRITETEXT "wt"
    760 #define FOPEN_APPENDTEXT "at"
    761 #elif defined(__CYGWIN__)
    762 /* Cygwin has specific behavior we need to address when WIN32 is not defined.
    763 https://cygwin.com/cygwin-ug-net/using-textbinary.html
    764 For write we want our output to have line endings of LF and be compatible with
    765 other Cygwin utilities. For read we want to handle input that may have line
    766 endings either CRLF or LF so 't' is appropriate.
    767 */
    768 #define FOPEN_READTEXT "rt"
    769 #define FOPEN_WRITETEXT "w"
    770 #define FOPEN_APPENDTEXT "a"
    771 #else
    772 #define FOPEN_READTEXT "r"
    773 #define FOPEN_WRITETEXT "w"
    774 #define FOPEN_APPENDTEXT "a"
    775 #endif
    776 
    777 /* WinSock destroys recv() buffer when send() failed.
    778  * Enabled automatically for Windows and for Cygwin as Cygwin sockets are
    779  * wrappers for WinSock sockets. https://github.com/curl/curl/issues/657
    780  * Define DONT_USE_RECV_BEFORE_SEND_WORKAROUND to force disable workaround.
    781  */
    782 #if !defined(DONT_USE_RECV_BEFORE_SEND_WORKAROUND)
    783 #  if defined(WIN32) || defined(__CYGWIN__)
    784 #    define USE_RECV_BEFORE_SEND_WORKAROUND
    785 #  endif
    786 #else  /* DONT_USE_RECV_BEFORE_SEND_WORKAROUND */
    787 #  ifdef USE_RECV_BEFORE_SEND_WORKAROUND
    788 #    undef USE_RECV_BEFORE_SEND_WORKAROUND
    789 #  endif
    790 #endif /* DONT_USE_RECV_BEFORE_SEND_WORKAROUND */
    791 
    792 /* Detect Windows App environment which has a restricted access
    793  * to the Win32 APIs. */
    794 # if (defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0602)) || \
    795   defined(WINAPI_FAMILY)
    796 #  include <winapifamily.h>
    797 #  if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP) &&  \
    798      !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
    799 #    define CURL_WINDOWS_APP
    800 #  endif
    801 # endif
    802 
    803 /* for systems that don't detect this in configure, use a sensible default */
    804 #ifndef CURL_SA_FAMILY_T
    805 #define CURL_SA_FAMILY_T unsigned short
    806 #endif
    807 
    808 /* Some convenience macros to get the larger/smaller value out of two given.
    809    We prefix with CURL to prevent name collisions. */
    810 #define CURLMAX(x,y) ((x)>(y)?(x):(y))
    811 #define CURLMIN(x,y) ((x)<(y)?(x):(y))
    812 
    813 /* Some versions of the Android SDK is missing the declaration */
    814 #if defined(HAVE_GETPWUID_R) && defined(HAVE_DECL_GETPWUID_R_MISSING)
    815 struct passwd;
    816 int getpwuid_r(uid_t uid, struct passwd *pwd, char *buf,
    817                size_t buflen, struct passwd **result);
    818 #endif
    819 
    820 #ifdef DEBUGBUILD
    821 #define UNITTEST
    822 #else
    823 #define UNITTEST static
    824 #endif
    825 
    826 #endif /* HEADER_CURL_SETUP_H */
    827