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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 - 2016, 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.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 /*
26  * Define WIN32 when build target is Win32 API
27  */
28 
29 #if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32) && \
30     !defined(__SYMBIAN32__)
31 #define WIN32
32 #endif
33 
34 /*
35  * Include configuration script results or hand-crafted
36  * configuration file for platforms which lack config tool.
37  */
38 
39 #ifdef HAVE_CONFIG_H
40 
41 #include "curl_config.h"
42 
43 #else /* HAVE_CONFIG_H */
44 
45 #ifdef _WIN32_WCE
46 #  include "config-win32ce.h"
47 #else
48 #  ifdef WIN32
49 #    include "config-win32.h"
50 #  endif
51 #endif
52 
53 #if defined(macintosh) && defined(__MRC__)
54 #  include "config-mac.h"
55 #endif
56 
57 #ifdef __riscos__
58 #  include "config-riscos.h"
59 #endif
60 
61 #ifdef __AMIGA__
62 #  include "config-amigaos.h"
63 #endif
64 
65 #ifdef __SYMBIAN32__
66 #  include "config-symbian.h"
67 #endif
68 
69 #ifdef __OS400__
70 #  include "config-os400.h"
71 #endif
72 
73 #ifdef TPF
74 #  include "config-tpf.h"
75 #endif
76 
77 #ifdef __VXWORKS__
78 #  include "config-vxworks.h"
79 #endif
80 
81 #endif /* HAVE_CONFIG_H */
82 
83 /* ================================================================ */
84 /* Definition of preprocessor macros/symbols which modify compiler  */
85 /* behavior or generated code characteristics must be done here,   */
86 /* as appropriate, before any system header file is included. It is */
87 /* also possible to have them defined in the config file included   */
88 /* before this point. As a result of all this we frown inclusion of */
89 /* system header files in our config files, avoid this at any cost. */
90 /* ================================================================ */
91 
92 /*
93  * AIX 4.3 and newer needs _THREAD_SAFE defined to build
94  * proper reentrant code. Others may also need it.
95  */
96 
97 #ifdef NEED_THREAD_SAFE
98 #  ifndef _THREAD_SAFE
99 #    define _THREAD_SAFE
100 #  endif
101 #endif
102 
103 /*
104  * Tru64 needs _REENTRANT set for a few function prototypes and
105  * things to appear in the system header files. Unixware needs it
106  * to build proper reentrant code. Others may also need it.
107  */
108 
109 #ifdef NEED_REENTRANT
110 #  ifndef _REENTRANT
111 #    define _REENTRANT
112 #  endif
113 #endif
114 
115 /* Solaris needs this to get a POSIX-conformant getpwuid_r */
116 #if defined(sun) || defined(__sun)
117 #  ifndef _POSIX_PTHREAD_SEMANTICS
118 #    define _POSIX_PTHREAD_SEMANTICS 1
119 #  endif
120 #endif
121 
122 /* ================================================================ */
123 /*  If you need to include a system header file for your platform,  */
124 /*  please, do it beyond the point further indicated in this file.  */
125 /* ================================================================ */
126 
127 /*
128  * libcurl's external interface definitions are also used internally,
129  * and might also include required system header files to define them.
130  */
131 
132 #include <curl/curlbuild.h>
133 
134 /*
135  * Compile time sanity checks must also be done when building the library.
136  */
137 
138 #include <curl/curlrules.h>
139 
140 /*
141  * Ensure that no one is using the old SIZEOF_CURL_OFF_T macro
142  */
143 
144 #ifdef SIZEOF_CURL_OFF_T
145 #  error "SIZEOF_CURL_OFF_T shall not be defined!"
146    Error Compilation_aborted_SIZEOF_CURL_OFF_T_shall_not_be_defined
147 #endif
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_RTMP
185 #    define CURL_DISABLE_RTMP
186 #  endif
187 #  ifndef CURL_DISABLE_GOPHER
188 #    define CURL_DISABLE_GOPHER
189 #  endif
190 #  ifndef CURL_DISABLE_SMB
191 #    define CURL_DISABLE_SMB
192 #  endif
193 #endif
194 
195 /*
196  * When http is disabled rtsp is not supported.
197  */
198 
199 #if defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_RTSP)
200 #  define CURL_DISABLE_RTSP
201 #endif
202 
203 /* ================================================================ */
204 /* No system header file shall be included in this file before this */
205 /* point. The only allowed ones are those included from curlbuild.h */
206 /* ================================================================ */
207 
208 /*
209  * OS/400 setup file includes some system headers.
210  */
211 
212 #ifdef __OS400__
213 #  include "setup-os400.h"
214 #endif
215 
216 /*
217  * VMS setup file includes some system headers.
218  */
219 
220 #ifdef __VMS
221 #  include "setup-vms.h"
222 #endif
223 
224 /*
225  * Use getaddrinfo to resolve the IPv4 address literal. If the current network
226  * interface doesn’t support IPv4, but supports IPv6, NAT64, and DNS64,
227  * performing this task will result in a synthesized IPv6 address.
228  */
229 #ifdef  __APPLE__
230 #define USE_RESOLVE_ON_IPS 1
231 #endif
232 
233 /*
234  * Include header files for windows builds before redefining anything.
235  * Use this preprocessor block only to include or exclude windows.h,
236  * winsock2.h, ws2tcpip.h or winsock.h. Any other windows thing belongs
237  * to any other further and independent block.  Under Cygwin things work
238  * just as under linux (e.g. <sys/socket.h>) and the winsock headers should
239  * never be included when __CYGWIN__ is defined.  configure script takes
240  * care of this, not defining HAVE_WINDOWS_H, HAVE_WINSOCK_H, HAVE_WINSOCK2_H,
241  * neither HAVE_WS2TCPIP_H when __CYGWIN__ is defined.
242  */
243 
244 #ifdef HAVE_WINDOWS_H
245 #  if defined(UNICODE) && !defined(_UNICODE)
246 #    define _UNICODE
247 #  endif
248 #  if defined(_UNICODE) && !defined(UNICODE)
249 #    define UNICODE
250 #  endif
251 #  ifndef WIN32_LEAN_AND_MEAN
252 #    define WIN32_LEAN_AND_MEAN
253 #  endif
254 #  include <windows.h>
255 #  ifdef HAVE_WINSOCK2_H
256 #    include <winsock2.h>
257 #    ifdef HAVE_WS2TCPIP_H
258 #      include <ws2tcpip.h>
259 #    endif
260 #  else
261 #    ifdef HAVE_WINSOCK_H
262 #      include <winsock.h>
263 #    endif
264 #  endif
265 #  include <tchar.h>
266 #  ifdef UNICODE
267      typedef wchar_t *(*curl_wcsdup_callback)(const wchar_t *str);
268 #  endif
269 #endif
270 
271 /*
272  * Define USE_WINSOCK to 2 if we have and use WINSOCK2 API, else
273  * define USE_WINSOCK to 1 if we have and use WINSOCK  API, else
274  * undefine USE_WINSOCK.
275  */
276 
277 #undef USE_WINSOCK
278 
279 #ifdef HAVE_WINSOCK2_H
280 #  define USE_WINSOCK 2
281 #else
282 #  ifdef HAVE_WINSOCK_H
283 #    define USE_WINSOCK 1
284 #  endif
285 #endif
286 
287 #ifdef USE_LWIPSOCK
288 #  include <lwip/init.h>
289 #  include <lwip/sockets.h>
290 #  include <lwip/netdb.h>
291 #endif
292 
293 #ifdef HAVE_EXTRA_STRICMP_H
294 #  include <extra/stricmp.h>
295 #endif
296 
297 #ifdef HAVE_EXTRA_STRDUP_H
298 #  include <extra/strdup.h>
299 #endif
300 
301 #ifdef TPF
302 #  include <strings.h>    /* for bzero, strcasecmp, and strncasecmp */
303 #  include <string.h>     /* for strcpy and strlen */
304 #  include <stdlib.h>     /* for rand and srand */
305 #  include <sys/socket.h> /* for select and ioctl*/
306 #  include <netdb.h>      /* for in_addr_t definition */
307 #  include <tpf/sysapi.h> /* for tpf_process_signals */
308    /* change which select is used for libcurl */
309 #  define select(a,b,c,d,e) tpf_select_libcurl(a,b,c,d,e)
310 #endif
311 
312 #ifdef __VXWORKS__
313 #  include <sockLib.h>    /* for generic BSD socket functions */
314 #  include <ioLib.h>      /* for basic I/O interface functions */
315 #endif
316 
317 #ifdef __AMIGA__
318 #  ifndef __ixemul__
319 #    include <exec/types.h>
320 #    include <exec/execbase.h>
321 #    include <proto/exec.h>
322 #    include <proto/dos.h>
323 #    define select(a,b,c,d,e) WaitSelect(a,b,c,d,e,0)
324 #  endif
325 #endif
326 
327 #include <stdio.h>
328 #ifdef HAVE_ASSERT_H
329 #include <assert.h>
330 #endif
331 
332 #ifdef __TANDEM /* for nsr-tandem-nsk systems */
333 #include <floss.h>
334 #endif
335 
336 #ifndef STDC_HEADERS /* no standard C headers! */
337 #include <curl/stdcheaders.h>
338 #endif
339 
340 #ifdef __POCC__
341 #  include <sys/types.h>
342 #  include <unistd.h>
343 #  define sys_nerr EILSEQ
344 #endif
345 
346 /*
347  * Salford-C kludge section (mostly borrowed from wxWidgets).
348  */
349 #ifdef __SALFORDC__
350   #pragma suppress 353             /* Possible nested comments */
351   #pragma suppress 593             /* Define not used */
352   #pragma suppress 61              /* enum has no name */
353   #pragma suppress 106             /* unnamed, unused parameter */
354   #include <clib.h>
355 #endif
356 
357 /*
358  * Large file (>2Gb) support using WIN32 functions.
359  */
360 
361 #ifdef USE_WIN32_LARGE_FILES
362 #  include <io.h>
363 #  include <sys/types.h>
364 #  include <sys/stat.h>
365 #  undef  lseek
366 #  define lseek(fdes,offset,whence)  _lseeki64(fdes, offset, whence)
367 #  undef  fstat
368 #  define fstat(fdes,stp)            _fstati64(fdes, stp)
369 #  undef  stat
370 #  define stat(fname,stp)            _stati64(fname, stp)
371 #  define struct_stat                struct _stati64
372 #  define LSEEK_ERROR                (__int64)-1
373 #endif
374 
375 /*
376  * Small file (<2Gb) support using WIN32 functions.
377  */
378 
379 #ifdef USE_WIN32_SMALL_FILES
380 #  include <io.h>
381 #  include <sys/types.h>
382 #  include <sys/stat.h>
383 #  ifndef _WIN32_WCE
384 #    undef  lseek
385 #    define lseek(fdes,offset,whence)  _lseek(fdes, (long)offset, whence)
386 #    define fstat(fdes,stp)            _fstat(fdes, stp)
387 #    define stat(fname,stp)            _stat(fname, stp)
388 #    define struct_stat                struct _stat
389 #  endif
390 #  define LSEEK_ERROR                (long)-1
391 #endif
392 
393 #ifndef struct_stat
394 #  define struct_stat struct stat
395 #endif
396 
397 #ifndef LSEEK_ERROR
398 #  define LSEEK_ERROR (off_t)-1
399 #endif
400 
401 /*
402  * Arg 2 type for gethostname in case it hasn't been defined in config file.
403  */
404 
405 #ifndef GETHOSTNAME_TYPE_ARG2
406 #  ifdef USE_WINSOCK
407 #    define GETHOSTNAME_TYPE_ARG2 int
408 #  else
409 #    define GETHOSTNAME_TYPE_ARG2 size_t
410 #  endif
411 #endif
412 
413 /* Below we define some functions. They should
414 
415    4. set the SIGALRM signal timeout
416    5. set dir/file naming defines
417    */
418 
419 #ifdef WIN32
420 
421 #  define DIR_CHAR      "\\"
422 #  define DOT_CHAR      "_"
423 
424 #else /* WIN32 */
425 
426 #  ifdef MSDOS  /* Watt-32 */
427 
428 #    include <sys/ioctl.h>
429 #    define select(n,r,w,x,t) select_s(n,r,w,x,t)
430 #    define ioctl(x,y,z) ioctlsocket(x,y,(char *)(z))
431 #    include <tcp.h>
432 #    ifdef word
433 #      undef word
434 #    endif
435 #    ifdef byte
436 #      undef byte
437 #    endif
438 
439 #  endif /* MSDOS */
440 
441 #  ifdef __minix
442      /* Minix 3 versions up to at least 3.1.3 are missing these prototypes */
443      extern char *strtok_r(char *s, const char *delim, char **last);
444      extern struct tm *gmtime_r(const time_t * const timep, struct tm *tmp);
445 #  endif
446 
447 #  define DIR_CHAR      "/"
448 #  ifndef DOT_CHAR
449 #    define DOT_CHAR      "."
450 #  endif
451 
452 #  ifdef MSDOS
453 #    undef DOT_CHAR
454 #    define DOT_CHAR      "_"
455 #  endif
456 
457 #  ifndef fileno /* sunos 4 have this as a macro! */
458      int fileno(FILE *stream);
459 #  endif
460 
461 #endif /* WIN32 */
462 
463 /*
464  * msvc 6.0 requires PSDK in order to have INET6_ADDRSTRLEN
465  * defined in ws2tcpip.h as well as to provide IPv6 support.
466  * Does not apply if lwIP is used.
467  */
468 
469 #if defined(_MSC_VER) && !defined(__POCC__) && !defined(USE_LWIPSOCK)
470 #  if !defined(HAVE_WS2TCPIP_H) || \
471      ((_MSC_VER < 1300) && !defined(INET6_ADDRSTRLEN))
472 #    undef HAVE_GETADDRINFO_THREADSAFE
473 #    undef HAVE_FREEADDRINFO
474 #    undef HAVE_GETADDRINFO
475 #    undef HAVE_GETNAMEINFO
476 #    undef ENABLE_IPV6
477 #  endif
478 #endif
479 
480 /* ---------------------------------------------------------------- */
481 /*             resolver specialty compile-time defines              */
482 /*         CURLRES_* defines to use in the host*.c sources          */
483 /* ---------------------------------------------------------------- */
484 
485 /*
486  * lcc-win32 doesn't have _beginthreadex(), lacks threads support.
487  */
488 
489 #if defined(__LCC__) && defined(WIN32)
490 #  undef USE_THREADS_POSIX
491 #  undef USE_THREADS_WIN32
492 #endif
493 
494 /*
495  * MSVC threads support requires a multi-threaded runtime library.
496  * _beginthreadex() is not available in single-threaded ones.
497  */
498 
499 #if defined(_MSC_VER) && !defined(__POCC__) && !defined(_MT)
500 #  undef USE_THREADS_POSIX
501 #  undef USE_THREADS_WIN32
502 #endif
503 
504 /*
505  * Mutually exclusive CURLRES_* definitions.
506  */
507 
508 #ifdef USE_ARES
509 #  define CURLRES_ASYNCH
510 #  define CURLRES_ARES
511 /* now undef the stock libc functions just to avoid them being used */
512 #  undef HAVE_GETADDRINFO
513 #  undef HAVE_FREEADDRINFO
514 #  undef HAVE_GETHOSTBYNAME
515 #elif defined(USE_THREADS_POSIX) || defined(USE_THREADS_WIN32)
516 #  define CURLRES_ASYNCH
517 #  define CURLRES_THREADED
518 #else
519 #  define CURLRES_SYNCH
520 #endif
521 
522 #ifdef ENABLE_IPV6
523 #  define CURLRES_IPV6
524 #else
525 #  define CURLRES_IPV4
526 #endif
527 
528 /* ---------------------------------------------------------------- */
529 
530 /*
531  * When using WINSOCK, TELNET protocol requires WINSOCK2 API.
532  */
533 
534 #if defined(USE_WINSOCK) && (USE_WINSOCK != 2)
535 #  define CURL_DISABLE_TELNET 1
536 #endif
537 
538 /*
539  * msvc 6.0 does not have struct sockaddr_storage and
540  * does not define IPPROTO_ESP in winsock2.h. But both
541  * are available if PSDK is properly installed.
542  */
543 
544 #if defined(_MSC_VER) && !defined(__POCC__)
545 #  if !defined(HAVE_WINSOCK2_H) || ((_MSC_VER < 1300) && !defined(IPPROTO_ESP))
546 #    undef HAVE_STRUCT_SOCKADDR_STORAGE
547 #  endif
548 #endif
549 
550 /*
551  * Intentionally fail to build when using msvc 6.0 without PSDK installed.
552  * The brave of heart can circumvent this, defining ALLOW_MSVC6_WITHOUT_PSDK
553  * in lib/config-win32.h although absolutely discouraged and unsupported.
554  */
555 
556 #if defined(_MSC_VER) && !defined(__POCC__)
557 #  if !defined(HAVE_WINDOWS_H) || ((_MSC_VER < 1300) && !defined(_FILETIME_))
558 #    if !defined(ALLOW_MSVC6_WITHOUT_PSDK)
559 #      error MSVC 6.0 requires "February 2003 Platform SDK" a.k.a. \
560              "Windows Server 2003 PSDK"
561 #    else
562 #      define CURL_DISABLE_LDAP 1
563 #    endif
564 #  endif
565 #endif
566 
567 #ifdef NETWARE
568 int netware_init(void);
569 #ifndef __NOVELL_LIBC__
570 #include <sys/bsdskt.h>
571 #include <sys/timeval.h>
572 #endif
573 #endif
574 
575 #if defined(HAVE_LIBIDN2) && defined(HAVE_IDN2_H)
576 /* The lib and header are present */
577 #define USE_LIBIDN2
578 #endif
579 
580 #define LIBIDN_REQUIRED_VERSION "0.4.1"
581 
582 #if defined(USE_GNUTLS) || defined(USE_OPENSSL) || defined(USE_NSS) || \
583     defined(USE_POLARSSL) || defined(USE_AXTLS) || defined(USE_MBEDTLS) || \
584     defined(USE_CYASSL) || defined(USE_SCHANNEL) || \
585     defined(USE_DARWINSSL) || defined(USE_GSKIT)
586 #define USE_SSL    /* SSL support has been enabled */
587 #endif
588 
589 /* Single point where USE_SPNEGO definition might be defined */
590 #if !defined(CURL_DISABLE_CRYPTO_AUTH) && \
591     (defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI))
592 #define USE_SPNEGO
593 #endif
594 
595 /* Single point where USE_KERBEROS5 definition might be defined */
596 #if !defined(CURL_DISABLE_CRYPTO_AUTH) && \
597     (defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI))
598 #define USE_KERBEROS5
599 #endif
600 
601 /* Single point where USE_NTLM definition might be defined */
602 #if !defined(CURL_DISABLE_NTLM) && !defined(CURL_DISABLE_CRYPTO_AUTH)
603 #if defined(USE_OPENSSL) || defined(USE_WINDOWS_SSPI) || \
604     defined(USE_GNUTLS) || defined(USE_NSS) || defined(USE_DARWINSSL) || \
605     defined(USE_OS400CRYPTO) || defined(USE_WIN32_CRYPTO)
606 
607 #define USE_NTLM
608 
609 #elif defined(USE_MBEDTLS)
610 #  include <mbedtls/md4.h>
611 #  if defined(MBEDTLS_MD4_C)
612 #define USE_NTLM
613 #  endif
614 
615 #endif
616 #endif
617 
618 /* non-configure builds may define CURL_WANTS_CA_BUNDLE_ENV */
619 #if defined(CURL_WANTS_CA_BUNDLE_ENV) && !defined(CURL_CA_BUNDLE)
620 #define CURL_CA_BUNDLE getenv("CURL_CA_BUNDLE")
621 #endif
622 
623 /*
624  * Provide a mechanism to silence picky compilers, such as gcc 4.6+.
625  * Parameters should of course normally not be unused, but for example when
626  * we have multiple implementations of the same interface it may happen.
627  */
628 
629 #if defined(__GNUC__) && ((__GNUC__ >= 3) || \
630   ((__GNUC__ == 2) && defined(__GNUC_MINOR__) && (__GNUC_MINOR__ >= 7)))
631 #  define UNUSED_PARAM __attribute__((__unused__))
632 #  define WARN_UNUSED_RESULT __attribute__((warn_unused_result))
633 #else
634 #  define UNUSED_PARAM /*NOTHING*/
635 #  define WARN_UNUSED_RESULT
636 #endif
637 
638 /*
639  * Include macros and defines that should only be processed once.
640  */
641 
642 #ifndef HEADER_CURL_SETUP_ONCE_H
643 #include "curl_setup_once.h"
644 #endif
645 
646 /*
647  * Definition of our NOP statement Object-like macro
648  */
649 
650 #ifndef Curl_nop_stmt
651 #  define Curl_nop_stmt do { } WHILE_FALSE
652 #endif
653 
654 /*
655  * Ensure that Winsock and lwIP TCP/IP stacks are not mixed.
656  */
657 
658 #if defined(__LWIP_OPT_H__) || defined(LWIP_HDR_OPT_H)
659 #  if defined(SOCKET) || \
660      defined(USE_WINSOCK) || \
661      defined(HAVE_WINSOCK_H) || \
662      defined(HAVE_WINSOCK2_H) || \
663      defined(HAVE_WS2TCPIP_H)
664 #    error "Winsock and lwIP TCP/IP stack definitions shall not coexist!"
665 #  endif
666 #endif
667 
668 /*
669  * Portable symbolic names for Winsock shutdown() mode flags.
670  */
671 
672 #ifdef USE_WINSOCK
673 #  define SHUT_RD   0x00
674 #  define SHUT_WR   0x01
675 #  define SHUT_RDWR 0x02
676 #endif
677 
678 /* Define S_ISREG if not defined by system headers, f.e. MSVC */
679 #if !defined(S_ISREG) && defined(S_IFMT) && defined(S_IFREG)
680 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
681 #endif
682 
683 /* Define S_ISDIR if not defined by system headers, f.e. MSVC */
684 #if !defined(S_ISDIR) && defined(S_IFMT) && defined(S_IFDIR)
685 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
686 #endif
687 
688 /* In Windows the default file mode is text but an application can override it.
689 Therefore we specify it explicitly. https://github.com/curl/curl/pull/258
690 */
691 #if defined(WIN32) || defined(MSDOS)
692 #define FOPEN_READTEXT "rt"
693 #define FOPEN_WRITETEXT "wt"
694 #elif defined(__CYGWIN__)
695 /* Cygwin has specific behavior we need to address when WIN32 is not defined.
696 https://cygwin.com/cygwin-ug-net/using-textbinary.html
697 For write we want our output to have line endings of LF and be compatible with
698 other Cygwin utilities. For read we want to handle input that may have line
699 endings either CRLF or LF so 't' is appropriate.
700 */
701 #define FOPEN_READTEXT "rt"
702 #define FOPEN_WRITETEXT "w"
703 #else
704 #define FOPEN_READTEXT "r"
705 #define FOPEN_WRITETEXT "w"
706 #endif
707 
708 /* WinSock destroys recv() buffer when send() failed.
709  * Enabled automatically for Windows and for Cygwin as Cygwin sockets are
710  * wrappers for WinSock sockets. https://github.com/curl/curl/issues/657
711  * Define DONT_USE_RECV_BEFORE_SEND_WORKAROUND to force disable workaround.
712  */
713 #if !defined(DONT_USE_RECV_BEFORE_SEND_WORKAROUND)
714 #  if defined(WIN32) || defined(__CYGWIN__)
715 #    define USE_RECV_BEFORE_SEND_WORKAROUND
716 #  endif
717 #else  /* DONT_USE_RECV_BEFORE_SEND_WORKAROUNDS */
718 #  ifdef USE_RECV_BEFORE_SEND_WORKAROUND
719 #    undef USE_RECV_BEFORE_SEND_WORKAROUND
720 #  endif
721 #endif /* DONT_USE_RECV_BEFORE_SEND_WORKAROUNDS */
722 
723 /* Detect Windows App environment which has a restricted access
724  * to the Win32 APIs. */
725 # if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0602)
726 #  include <winapifamily.h>
727 #  if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP) && \
728      !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
729 #    define CURL_WINDOWS_APP
730 #  endif
731 # endif
732 
733 #endif /* HEADER_CURL_SETUP_H */
734