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1 #ifndef CURLINC_CURL_H
2 #define CURLINC_CURL_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 /*
28  * If you have libcurl problems, all docs and details are found here:
29  *   https://curl.se/libcurl/
30  */
31 
32 #ifdef CURL_NO_OLDIES
33 #define CURL_STRICTER
34 #endif
35 
36 /* Compile-time deprecation macros. */
37 #if defined(__GNUC__) &&                                                \
38   ((__GNUC__ > 12) || ((__GNUC__ == 12) && (__GNUC_MINOR__ >= 1 ))) &&  \
39   !defined(__INTEL_COMPILER) &&                                         \
40   !defined(CURL_DISABLE_DEPRECATION) && !defined(BUILDING_LIBCURL)
41 #define CURL_DEPRECATED(version, message)                       \
42   __attribute__((deprecated("since " # version ". " message)))
43 #define CURL_IGNORE_DEPRECATION(statements) \
44       _Pragma("GCC diagnostic push") \
45       _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") \
46       statements \
47       _Pragma("GCC diagnostic pop")
48 #else
49 #define CURL_DEPRECATED(version, message)
50 #define CURL_IGNORE_DEPRECATION(statements)     statements
51 #endif
52 
53 #include "curlver.h"         /* libcurl version defines   */
54 #include "system.h"          /* determine things run-time */
55 
56 /*
57  * Define CURL_WIN32 when build target is Win32 API
58  */
59 
60 #if (defined(_WIN32) || defined(__WIN32__) || defined(WIN32)) &&        \
61   !defined(__SYMBIAN32__)
62 #define CURL_WIN32
63 #endif
64 
65 #include <stdio.h>
66 #include <limits.h>
67 
68 #if (defined(__FreeBSD__) && (__FreeBSD__ >= 2)) || defined(__MidnightBSD__)
69 /* Needed for __FreeBSD_version or __MidnightBSD_version symbol definition */
70 #include <osreldate.h>
71 #endif
72 
73 /* The include stuff here below is mainly for time_t! */
74 #include <sys/types.h>
75 #include <time.h>
76 
77 #if defined(CURL_WIN32) && !defined(_WIN32_WCE) && !defined(__CYGWIN__)
78 #if !(defined(_WINSOCKAPI_) || defined(_WINSOCK_H) || \
79       defined(__LWIP_OPT_H__) || defined(LWIP_HDR_OPT_H))
80 /* The check above prevents the winsock2 inclusion if winsock.h already was
81    included, since they can't co-exist without problems */
82 #include <winsock2.h>
83 #include <ws2tcpip.h>
84 #endif
85 #endif
86 
87 /* HP-UX systems version 9, 10 and 11 lack sys/select.h and so does oldish
88    libc5-based Linux systems. Only include it on systems that are known to
89    require it! */
90 #if defined(_AIX) || defined(__NOVELL_LIBC__) || defined(__NetBSD__) || \
91     defined(__minix) || defined(__SYMBIAN32__) || defined(__INTEGRITY) || \
92     defined(ANDROID) || defined(__ANDROID__) || defined(__OpenBSD__) || \
93     defined(__CYGWIN__) || defined(AMIGA) || defined(__NuttX__) || \
94    (defined(__FreeBSD_version) && (__FreeBSD_version < 800000)) || \
95    (defined(__MidnightBSD_version) && (__MidnightBSD_version < 100000)) || \
96     defined(__sun__) || defined(__serenity__) || defined(__vxworks__)
97 #include <sys/select.h>
98 #endif
99 
100 #if !defined(CURL_WIN32) && !defined(_WIN32_WCE)
101 #include <sys/socket.h>
102 #endif
103 
104 #if !defined(CURL_WIN32)
105 #include <sys/time.h>
106 #endif
107 
108 /* Compatibility for non-Clang compilers */
109 #ifndef __has_declspec_attribute
110 #  define __has_declspec_attribute(x) 0
111 #endif
112 
113 #ifdef  __cplusplus
114 extern "C" {
115 #endif
116 
117 #if defined(BUILDING_LIBCURL) || defined(CURL_STRICTER)
118 typedef struct Curl_easy CURL;
119 typedef struct Curl_share CURLSH;
120 #else
121 typedef void CURL;
122 typedef void CURLSH;
123 #endif
124 
125 /*
126  * libcurl external API function linkage decorations.
127  */
128 
129 #ifdef CURL_STATICLIB
130 #  define CURL_EXTERN
131 #elif defined(CURL_WIN32) || defined(__SYMBIAN32__) || \
132      (__has_declspec_attribute(dllexport) && \
133       __has_declspec_attribute(dllimport))
134 #  if defined(BUILDING_LIBCURL)
135 #    define CURL_EXTERN  __declspec(dllexport)
136 #  else
137 #    define CURL_EXTERN  __declspec(dllimport)
138 #  endif
139 #elif defined(BUILDING_LIBCURL) && defined(CURL_HIDDEN_SYMBOLS)
140 #  define CURL_EXTERN CURL_EXTERN_SYMBOL
141 #else
142 #  define CURL_EXTERN
143 #endif
144 
145 #ifndef curl_socket_typedef
146 /* socket typedef */
147 #if defined(CURL_WIN32) && !defined(__LWIP_OPT_H__) && !defined(LWIP_HDR_OPT_H)
148 typedef SOCKET curl_socket_t;
149 #define CURL_SOCKET_BAD INVALID_SOCKET
150 #else
151 typedef int curl_socket_t;
152 #define CURL_SOCKET_BAD -1
153 #endif
154 #define curl_socket_typedef
155 #endif /* curl_socket_typedef */
156 
157 /* enum for the different supported SSL backends */
158 typedef enum {
159   CURLSSLBACKEND_NONE = 0,
160   CURLSSLBACKEND_OPENSSL = 1,
161   CURLSSLBACKEND_GNUTLS = 2,
162   CURLSSLBACKEND_NSS                    CURL_DEPRECATED(8.3.0, "") = 3,
163   CURLSSLBACKEND_OBSOLETE4 = 4,  /* Was QSOSSL. */
164   CURLSSLBACKEND_GSKIT                  CURL_DEPRECATED(8.3.0, "") = 5,
165   CURLSSLBACKEND_POLARSSL               CURL_DEPRECATED(7.69.0, "") = 6,
166   CURLSSLBACKEND_WOLFSSL = 7,
167   CURLSSLBACKEND_SCHANNEL = 8,
168   CURLSSLBACKEND_SECURETRANSPORT = 9,
169   CURLSSLBACKEND_AXTLS                  CURL_DEPRECATED(7.61.0, "") = 10,
170   CURLSSLBACKEND_MBEDTLS = 11,
171   CURLSSLBACKEND_MESALINK               CURL_DEPRECATED(7.82.0, "") = 12,
172   CURLSSLBACKEND_BEARSSL = 13,
173   CURLSSLBACKEND_RUSTLS = 14
174 } curl_sslbackend;
175 
176 /* aliases for library clones and renames */
177 #define CURLSSLBACKEND_AWSLC CURLSSLBACKEND_OPENSSL
178 #define CURLSSLBACKEND_BORINGSSL CURLSSLBACKEND_OPENSSL
179 #define CURLSSLBACKEND_LIBRESSL CURLSSLBACKEND_OPENSSL
180 
181 /* deprecated names: */
182 #define CURLSSLBACKEND_CYASSL CURLSSLBACKEND_WOLFSSL
183 #define CURLSSLBACKEND_DARWINSSL CURLSSLBACKEND_SECURETRANSPORT
184 
185 struct curl_httppost {
186   struct curl_httppost *next;       /* next entry in the list */
187   char *name;                       /* pointer to allocated name */
188   long namelength;                  /* length of name length */
189   char *contents;                   /* pointer to allocated data contents */
190   long contentslength;              /* length of contents field, see also
191                                        CURL_HTTPPOST_LARGE */
192   char *buffer;                     /* pointer to allocated buffer contents */
193   long bufferlength;                /* length of buffer field */
194   char *contenttype;                /* Content-Type */
195   struct curl_slist *contentheader; /* list of extra headers for this form */
196   struct curl_httppost *more;       /* if one field name has more than one
197                                        file, this link should link to following
198                                        files */
199   long flags;                       /* as defined below */
200 
201 /* specified content is a file name */
202 #define CURL_HTTPPOST_FILENAME (1<<0)
203 /* specified content is a file name */
204 #define CURL_HTTPPOST_READFILE (1<<1)
205 /* name is only stored pointer do not free in formfree */
206 #define CURL_HTTPPOST_PTRNAME (1<<2)
207 /* contents is only stored pointer do not free in formfree */
208 #define CURL_HTTPPOST_PTRCONTENTS (1<<3)
209 /* upload file from buffer */
210 #define CURL_HTTPPOST_BUFFER (1<<4)
211 /* upload file from pointer contents */
212 #define CURL_HTTPPOST_PTRBUFFER (1<<5)
213 /* upload file contents by using the regular read callback to get the data and
214    pass the given pointer as custom pointer */
215 #define CURL_HTTPPOST_CALLBACK (1<<6)
216 /* use size in 'contentlen', added in 7.46.0 */
217 #define CURL_HTTPPOST_LARGE (1<<7)
218 
219   char *showfilename;               /* The file name to show. If not set, the
220                                        actual file name will be used (if this
221                                        is a file part) */
222   void *userp;                      /* custom pointer used for
223                                        HTTPPOST_CALLBACK posts */
224   curl_off_t contentlen;            /* alternative length of contents
225                                        field. Used if CURL_HTTPPOST_LARGE is
226                                        set. Added in 7.46.0 */
227 };
228 
229 
230 /* This is a return code for the progress callback that, when returned, will
231    signal libcurl to continue executing the default progress function */
232 #define CURL_PROGRESSFUNC_CONTINUE 0x10000001
233 
234 /* This is the CURLOPT_PROGRESSFUNCTION callback prototype. It is now
235    considered deprecated but was the only choice up until 7.31.0 */
236 typedef int (*curl_progress_callback)(void *clientp,
237                                       double dltotal,
238                                       double dlnow,
239                                       double ultotal,
240                                       double ulnow);
241 
242 /* This is the CURLOPT_XFERINFOFUNCTION callback prototype. It was introduced
243    in 7.32.0, avoids the use of floating point numbers and provides more
244    detailed information. */
245 typedef int (*curl_xferinfo_callback)(void *clientp,
246                                       curl_off_t dltotal,
247                                       curl_off_t dlnow,
248                                       curl_off_t ultotal,
249                                       curl_off_t ulnow);
250 
251 #ifndef CURL_MAX_READ_SIZE
252   /* The maximum receive buffer size configurable via CURLOPT_BUFFERSIZE. */
253 #define CURL_MAX_READ_SIZE (10*1024*1024)
254 #endif
255 
256 #ifndef CURL_MAX_WRITE_SIZE
257   /* Tests have proven that 20K is a very bad buffer size for uploads on
258      Windows, while 16K for some odd reason performed a lot better.
259      We do the ifndef check to allow this value to easier be changed at build
260      time for those who feel adventurous. The practical minimum is about
261      400 bytes since libcurl uses a buffer of this size as a scratch area
262      (unrelated to network send operations). */
263 #define CURL_MAX_WRITE_SIZE 16384
264 #endif
265 
266 #ifndef CURL_MAX_HTTP_HEADER
267 /* The only reason to have a max limit for this is to avoid the risk of a bad
268    server feeding libcurl with a never-ending header that will cause reallocs
269    infinitely */
270 #define CURL_MAX_HTTP_HEADER (100*1024)
271 #endif
272 
273 /* This is a magic return code for the write callback that, when returned,
274    will signal libcurl to pause receiving on the current transfer. */
275 #define CURL_WRITEFUNC_PAUSE 0x10000001
276 
277 /* This is a magic return code for the write callback that, when returned,
278    will signal an error from the callback. */
279 #define CURL_WRITEFUNC_ERROR 0xFFFFFFFF
280 
281 typedef size_t (*curl_write_callback)(char *buffer,
282                                       size_t size,
283                                       size_t nitems,
284                                       void *outstream);
285 
286 /* This callback will be called when a new resolver request is made */
287 typedef int (*curl_resolver_start_callback)(void *resolver_state,
288                                             void *reserved, void *userdata);
289 
290 /* enumeration of file types */
291 typedef enum {
292   CURLFILETYPE_FILE = 0,
293   CURLFILETYPE_DIRECTORY,
294   CURLFILETYPE_SYMLINK,
295   CURLFILETYPE_DEVICE_BLOCK,
296   CURLFILETYPE_DEVICE_CHAR,
297   CURLFILETYPE_NAMEDPIPE,
298   CURLFILETYPE_SOCKET,
299   CURLFILETYPE_DOOR, /* is possible only on Sun Solaris now */
300 
301   CURLFILETYPE_UNKNOWN /* should never occur */
302 } curlfiletype;
303 
304 #define CURLFINFOFLAG_KNOWN_FILENAME    (1<<0)
305 #define CURLFINFOFLAG_KNOWN_FILETYPE    (1<<1)
306 #define CURLFINFOFLAG_KNOWN_TIME        (1<<2)
307 #define CURLFINFOFLAG_KNOWN_PERM        (1<<3)
308 #define CURLFINFOFLAG_KNOWN_UID         (1<<4)
309 #define CURLFINFOFLAG_KNOWN_GID         (1<<5)
310 #define CURLFINFOFLAG_KNOWN_SIZE        (1<<6)
311 #define CURLFINFOFLAG_KNOWN_HLINKCOUNT  (1<<7)
312 
313 /* Information about a single file, used when doing FTP wildcard matching */
314 struct curl_fileinfo {
315   char *filename;
316   curlfiletype filetype;
317   time_t time; /* always zero! */
318   unsigned int perm;
319   int uid;
320   int gid;
321   curl_off_t size;
322   long int hardlinks;
323 
324   struct {
325     /* If some of these fields is not NULL, it is a pointer to b_data. */
326     char *time;
327     char *perm;
328     char *user;
329     char *group;
330     char *target; /* pointer to the target filename of a symlink */
331   } strings;
332 
333   unsigned int flags;
334 
335   /* These are libcurl private struct fields. Previously used by libcurl, so
336      they must never be interfered with. */
337   char *b_data;
338   size_t b_size;
339   size_t b_used;
340 };
341 
342 /* return codes for CURLOPT_CHUNK_BGN_FUNCTION */
343 #define CURL_CHUNK_BGN_FUNC_OK      0
344 #define CURL_CHUNK_BGN_FUNC_FAIL    1 /* tell the lib to end the task */
345 #define CURL_CHUNK_BGN_FUNC_SKIP    2 /* skip this chunk over */
346 
347 /* if splitting of data transfer is enabled, this callback is called before
348    download of an individual chunk started. Note that parameter "remains" works
349    only for FTP wildcard downloading (for now), otherwise is not used */
350 typedef long (*curl_chunk_bgn_callback)(const void *transfer_info,
351                                         void *ptr,
352                                         int remains);
353 
354 /* return codes for CURLOPT_CHUNK_END_FUNCTION */
355 #define CURL_CHUNK_END_FUNC_OK      0
356 #define CURL_CHUNK_END_FUNC_FAIL    1 /* tell the lib to end the task */
357 
358 /* If splitting of data transfer is enabled this callback is called after
359    download of an individual chunk finished.
360    Note! After this callback was set then it have to be called FOR ALL chunks.
361    Even if downloading of this chunk was skipped in CHUNK_BGN_FUNC.
362    This is the reason why we don't need "transfer_info" parameter in this
363    callback and we are not interested in "remains" parameter too. */
364 typedef long (*curl_chunk_end_callback)(void *ptr);
365 
366 /* return codes for FNMATCHFUNCTION */
367 #define CURL_FNMATCHFUNC_MATCH    0 /* string corresponds to the pattern */
368 #define CURL_FNMATCHFUNC_NOMATCH  1 /* pattern doesn't match the string */
369 #define CURL_FNMATCHFUNC_FAIL     2 /* an error occurred */
370 
371 /* callback type for wildcard downloading pattern matching. If the
372    string matches the pattern, return CURL_FNMATCHFUNC_MATCH value, etc. */
373 typedef int (*curl_fnmatch_callback)(void *ptr,
374                                      const char *pattern,
375                                      const char *string);
376 
377 /* These are the return codes for the seek callbacks */
378 #define CURL_SEEKFUNC_OK       0
379 #define CURL_SEEKFUNC_FAIL     1 /* fail the entire transfer */
380 #define CURL_SEEKFUNC_CANTSEEK 2 /* tell libcurl seeking can't be done, so
381                                     libcurl might try other means instead */
382 typedef int (*curl_seek_callback)(void *instream,
383                                   curl_off_t offset,
384                                   int origin); /* 'whence' */
385 
386 /* This is a return code for the read callback that, when returned, will
387    signal libcurl to immediately abort the current transfer. */
388 #define CURL_READFUNC_ABORT 0x10000000
389 /* This is a return code for the read callback that, when returned, will
390    signal libcurl to pause sending data on the current transfer. */
391 #define CURL_READFUNC_PAUSE 0x10000001
392 
393 /* Return code for when the trailing headers' callback has terminated
394    without any errors */
395 #define CURL_TRAILERFUNC_OK 0
396 /* Return code for when was an error in the trailing header's list and we
397   want to abort the request */
398 #define CURL_TRAILERFUNC_ABORT 1
399 
400 typedef size_t (*curl_read_callback)(char *buffer,
401                                       size_t size,
402                                       size_t nitems,
403                                       void *instream);
404 
405 typedef int (*curl_trailer_callback)(struct curl_slist **list,
406                                       void *userdata);
407 
408 typedef enum {
409   CURLSOCKTYPE_IPCXN,  /* socket created for a specific IP connection */
410   CURLSOCKTYPE_ACCEPT, /* socket created by accept() call */
411   CURLSOCKTYPE_LAST    /* never use */
412 } curlsocktype;
413 
414 /* The return code from the sockopt_callback can signal information back
415    to libcurl: */
416 #define CURL_SOCKOPT_OK 0
417 #define CURL_SOCKOPT_ERROR 1 /* causes libcurl to abort and return
418                                 CURLE_ABORTED_BY_CALLBACK */
419 #define CURL_SOCKOPT_ALREADY_CONNECTED 2
420 
421 typedef int (*curl_sockopt_callback)(void *clientp,
422                                      curl_socket_t curlfd,
423                                      curlsocktype purpose);
424 
425 struct curl_sockaddr {
426   int family;
427   int socktype;
428   int protocol;
429   unsigned int addrlen; /* addrlen was a socklen_t type before 7.18.0 but it
430                            turned really ugly and painful on the systems that
431                            lack this type */
432   struct sockaddr addr;
433 };
434 
435 typedef curl_socket_t
436 (*curl_opensocket_callback)(void *clientp,
437                             curlsocktype purpose,
438                             struct curl_sockaddr *address);
439 
440 typedef int
441 (*curl_closesocket_callback)(void *clientp, curl_socket_t item);
442 
443 typedef enum {
444   CURLIOE_OK,            /* I/O operation successful */
445   CURLIOE_UNKNOWNCMD,    /* command was unknown to callback */
446   CURLIOE_FAILRESTART,   /* failed to restart the read */
447   CURLIOE_LAST           /* never use */
448 } curlioerr;
449 
450 typedef enum {
451   CURLIOCMD_NOP,         /* no operation */
452   CURLIOCMD_RESTARTREAD, /* restart the read stream from start */
453   CURLIOCMD_LAST         /* never use */
454 } curliocmd;
455 
456 typedef curlioerr (*curl_ioctl_callback)(CURL *handle,
457                                          int cmd,
458                                          void *clientp);
459 
460 #ifndef CURL_DID_MEMORY_FUNC_TYPEDEFS
461 /*
462  * The following typedef's are signatures of malloc, free, realloc, strdup and
463  * calloc respectively.  Function pointers of these types can be passed to the
464  * curl_global_init_mem() function to set user defined memory management
465  * callback routines.
466  */
467 typedef void *(*curl_malloc_callback)(size_t size);
468 typedef void (*curl_free_callback)(void *ptr);
469 typedef void *(*curl_realloc_callback)(void *ptr, size_t size);
470 typedef char *(*curl_strdup_callback)(const char *str);
471 typedef void *(*curl_calloc_callback)(size_t nmemb, size_t size);
472 
473 #define CURL_DID_MEMORY_FUNC_TYPEDEFS
474 #endif
475 
476 /* the kind of data that is passed to information_callback */
477 typedef enum {
478   CURLINFO_TEXT = 0,
479   CURLINFO_HEADER_IN,    /* 1 */
480   CURLINFO_HEADER_OUT,   /* 2 */
481   CURLINFO_DATA_IN,      /* 3 */
482   CURLINFO_DATA_OUT,     /* 4 */
483   CURLINFO_SSL_DATA_IN,  /* 5 */
484   CURLINFO_SSL_DATA_OUT, /* 6 */
485   CURLINFO_END
486 } curl_infotype;
487 
488 typedef int (*curl_debug_callback)
489        (CURL *handle,      /* the handle/transfer this concerns */
490         curl_infotype type, /* what kind of data */
491         char *data,        /* points to the data */
492         size_t size,       /* size of the data pointed to */
493         void *userptr);    /* whatever the user please */
494 
495 /* This is the CURLOPT_PREREQFUNCTION callback prototype. */
496 typedef int (*curl_prereq_callback)(void *clientp,
497                                     char *conn_primary_ip,
498                                     char *conn_local_ip,
499                                     int conn_primary_port,
500                                     int conn_local_port);
501 
502 /* Return code for when the pre-request callback has terminated without
503    any errors */
504 #define CURL_PREREQFUNC_OK 0
505 /* Return code for when the pre-request callback wants to abort the
506    request */
507 #define CURL_PREREQFUNC_ABORT 1
508 
509 /* All possible error codes from all sorts of curl functions. Future versions
510    may return other values, stay prepared.
511 
512    Always add new return codes last. Never *EVER* remove any. The return
513    codes must remain the same!
514  */
515 
516 typedef enum {
517   CURLE_OK = 0,
518   CURLE_UNSUPPORTED_PROTOCOL,    /* 1 */
519   CURLE_FAILED_INIT,             /* 2 */
520   CURLE_URL_MALFORMAT,           /* 3 */
521   CURLE_NOT_BUILT_IN,            /* 4 - [was obsoleted in August 2007 for
522                                     7.17.0, reused in April 2011 for 7.21.5] */
523   CURLE_COULDNT_RESOLVE_PROXY,   /* 5 */
524   CURLE_COULDNT_RESOLVE_HOST,    /* 6 */
525   CURLE_COULDNT_CONNECT,         /* 7 */
526   CURLE_WEIRD_SERVER_REPLY,      /* 8 */
527   CURLE_REMOTE_ACCESS_DENIED,    /* 9 a service was denied by the server
528                                     due to lack of access - when login fails
529                                     this is not returned. */
530   CURLE_FTP_ACCEPT_FAILED,       /* 10 - [was obsoleted in April 2006 for
531                                     7.15.4, reused in Dec 2011 for 7.24.0]*/
532   CURLE_FTP_WEIRD_PASS_REPLY,    /* 11 */
533   CURLE_FTP_ACCEPT_TIMEOUT,      /* 12 - timeout occurred accepting server
534                                     [was obsoleted in August 2007 for 7.17.0,
535                                     reused in Dec 2011 for 7.24.0]*/
536   CURLE_FTP_WEIRD_PASV_REPLY,    /* 13 */
537   CURLE_FTP_WEIRD_227_FORMAT,    /* 14 */
538   CURLE_FTP_CANT_GET_HOST,       /* 15 */
539   CURLE_HTTP2,                   /* 16 - A problem in the http2 framing layer.
540                                     [was obsoleted in August 2007 for 7.17.0,
541                                     reused in July 2014 for 7.38.0] */
542   CURLE_FTP_COULDNT_SET_TYPE,    /* 17 */
543   CURLE_PARTIAL_FILE,            /* 18 */
544   CURLE_FTP_COULDNT_RETR_FILE,   /* 19 */
545   CURLE_OBSOLETE20,              /* 20 - NOT USED */
546   CURLE_QUOTE_ERROR,             /* 21 - quote command failure */
547   CURLE_HTTP_RETURNED_ERROR,     /* 22 */
548   CURLE_WRITE_ERROR,             /* 23 */
549   CURLE_OBSOLETE24,              /* 24 - NOT USED */
550   CURLE_UPLOAD_FAILED,           /* 25 - failed upload "command" */
551   CURLE_READ_ERROR,              /* 26 - couldn't open/read from file */
552   CURLE_OUT_OF_MEMORY,           /* 27 */
553   CURLE_OPERATION_TIMEDOUT,      /* 28 - the timeout time was reached */
554   CURLE_OBSOLETE29,              /* 29 - NOT USED */
555   CURLE_FTP_PORT_FAILED,         /* 30 - FTP PORT operation failed */
556   CURLE_FTP_COULDNT_USE_REST,    /* 31 - the REST command failed */
557   CURLE_OBSOLETE32,              /* 32 - NOT USED */
558   CURLE_RANGE_ERROR,             /* 33 - RANGE "command" didn't work */
559   CURLE_HTTP_POST_ERROR,         /* 34 */
560   CURLE_SSL_CONNECT_ERROR,       /* 35 - wrong when connecting with SSL */
561   CURLE_BAD_DOWNLOAD_RESUME,     /* 36 - couldn't resume download */
562   CURLE_FILE_COULDNT_READ_FILE,  /* 37 */
563   CURLE_LDAP_CANNOT_BIND,        /* 38 */
564   CURLE_LDAP_SEARCH_FAILED,      /* 39 */
565   CURLE_OBSOLETE40,              /* 40 - NOT USED */
566   CURLE_FUNCTION_NOT_FOUND,      /* 41 - NOT USED starting with 7.53.0 */
567   CURLE_ABORTED_BY_CALLBACK,     /* 42 */
568   CURLE_BAD_FUNCTION_ARGUMENT,   /* 43 */
569   CURLE_OBSOLETE44,              /* 44 - NOT USED */
570   CURLE_INTERFACE_FAILED,        /* 45 - CURLOPT_INTERFACE failed */
571   CURLE_OBSOLETE46,              /* 46 - NOT USED */
572   CURLE_TOO_MANY_REDIRECTS,      /* 47 - catch endless re-direct loops */
573   CURLE_UNKNOWN_OPTION,          /* 48 - User specified an unknown option */
574   CURLE_SETOPT_OPTION_SYNTAX,    /* 49 - Malformed setopt option */
575   CURLE_OBSOLETE50,              /* 50 - NOT USED */
576   CURLE_OBSOLETE51,              /* 51 - NOT USED */
577   CURLE_GOT_NOTHING,             /* 52 - when this is a specific error */
578   CURLE_SSL_ENGINE_NOTFOUND,     /* 53 - SSL crypto engine not found */
579   CURLE_SSL_ENGINE_SETFAILED,    /* 54 - can not set SSL crypto engine as
580                                     default */
581   CURLE_SEND_ERROR,              /* 55 - failed sending network data */
582   CURLE_RECV_ERROR,              /* 56 - failure in receiving network data */
583   CURLE_OBSOLETE57,              /* 57 - NOT IN USE */
584   CURLE_SSL_CERTPROBLEM,         /* 58 - problem with the local certificate */
585   CURLE_SSL_CIPHER,              /* 59 - couldn't use specified cipher */
586   CURLE_PEER_FAILED_VERIFICATION, /* 60 - peer's certificate or fingerprint
587                                      wasn't verified fine */
588   CURLE_BAD_CONTENT_ENCODING,    /* 61 - Unrecognized/bad encoding */
589   CURLE_OBSOLETE62,              /* 62 - NOT IN USE since 7.82.0 */
590   CURLE_FILESIZE_EXCEEDED,       /* 63 - Maximum file size exceeded */
591   CURLE_USE_SSL_FAILED,          /* 64 - Requested FTP SSL level failed */
592   CURLE_SEND_FAIL_REWIND,        /* 65 - Sending the data requires a rewind
593                                     that failed */
594   CURLE_SSL_ENGINE_INITFAILED,   /* 66 - failed to initialise ENGINE */
595   CURLE_LOGIN_DENIED,            /* 67 - user, password or similar was not
596                                     accepted and we failed to login */
597   CURLE_TFTP_NOTFOUND,           /* 68 - file not found on server */
598   CURLE_TFTP_PERM,               /* 69 - permission problem on server */
599   CURLE_REMOTE_DISK_FULL,        /* 70 - out of disk space on server */
600   CURLE_TFTP_ILLEGAL,            /* 71 - Illegal TFTP operation */
601   CURLE_TFTP_UNKNOWNID,          /* 72 - Unknown transfer ID */
602   CURLE_REMOTE_FILE_EXISTS,      /* 73 - File already exists */
603   CURLE_TFTP_NOSUCHUSER,         /* 74 - No such user */
604   CURLE_OBSOLETE75,              /* 75 - NOT IN USE since 7.82.0 */
605   CURLE_OBSOLETE76,              /* 76 - NOT IN USE since 7.82.0 */
606   CURLE_SSL_CACERT_BADFILE,      /* 77 - could not load CACERT file, missing
607                                     or wrong format */
608   CURLE_REMOTE_FILE_NOT_FOUND,   /* 78 - remote file not found */
609   CURLE_SSH,                     /* 79 - error from the SSH layer, somewhat
610                                     generic so the error message will be of
611                                     interest when this has happened */
612 
613   CURLE_SSL_SHUTDOWN_FAILED,     /* 80 - Failed to shut down the SSL
614                                     connection */
615   CURLE_AGAIN,                   /* 81 - socket is not ready for send/recv,
616                                     wait till it's ready and try again (Added
617                                     in 7.18.2) */
618   CURLE_SSL_CRL_BADFILE,         /* 82 - could not load CRL file, missing or
619                                     wrong format (Added in 7.19.0) */
620   CURLE_SSL_ISSUER_ERROR,        /* 83 - Issuer check failed.  (Added in
621                                     7.19.0) */
622   CURLE_FTP_PRET_FAILED,         /* 84 - a PRET command failed */
623   CURLE_RTSP_CSEQ_ERROR,         /* 85 - mismatch of RTSP CSeq numbers */
624   CURLE_RTSP_SESSION_ERROR,      /* 86 - mismatch of RTSP Session Ids */
625   CURLE_FTP_BAD_FILE_LIST,       /* 87 - unable to parse FTP file list */
626   CURLE_CHUNK_FAILED,            /* 88 - chunk callback reported error */
627   CURLE_NO_CONNECTION_AVAILABLE, /* 89 - No connection available, the
628                                     session will be queued */
629   CURLE_SSL_PINNEDPUBKEYNOTMATCH, /* 90 - specified pinned public key did not
630                                      match */
631   CURLE_SSL_INVALIDCERTSTATUS,   /* 91 - invalid certificate status */
632   CURLE_HTTP2_STREAM,            /* 92 - stream error in HTTP/2 framing layer
633                                     */
634   CURLE_RECURSIVE_API_CALL,      /* 93 - an api function was called from
635                                     inside a callback */
636   CURLE_AUTH_ERROR,              /* 94 - an authentication function returned an
637                                     error */
638   CURLE_HTTP3,                   /* 95 - An HTTP/3 layer problem */
639   CURLE_QUIC_CONNECT_ERROR,      /* 96 - QUIC connection error */
640   CURLE_PROXY,                   /* 97 - proxy handshake error */
641   CURLE_SSL_CLIENTCERT,          /* 98 - client-side certificate required */
642   CURLE_UNRECOVERABLE_POLL,      /* 99 - poll/select returned fatal error */
643   CURL_LAST /* never use! */
644 } CURLcode;
645 
646 #ifndef CURL_NO_OLDIES /* define this to test if your app builds with all
647                           the obsolete stuff removed! */
648 
649 /* Previously obsolete error code reused in 7.38.0 */
650 #define CURLE_OBSOLETE16 CURLE_HTTP2
651 
652 /* Previously obsolete error codes reused in 7.24.0 */
653 #define CURLE_OBSOLETE10 CURLE_FTP_ACCEPT_FAILED
654 #define CURLE_OBSOLETE12 CURLE_FTP_ACCEPT_TIMEOUT
655 
656 /*  compatibility with older names */
657 #define CURLOPT_ENCODING CURLOPT_ACCEPT_ENCODING
658 #define CURLE_FTP_WEIRD_SERVER_REPLY CURLE_WEIRD_SERVER_REPLY
659 
660 /* The following were added in 7.62.0 */
661 #define CURLE_SSL_CACERT CURLE_PEER_FAILED_VERIFICATION
662 
663 /* The following were added in 7.21.5, April 2011 */
664 #define CURLE_UNKNOWN_TELNET_OPTION CURLE_UNKNOWN_OPTION
665 
666 /* Added for 7.78.0 */
667 #define CURLE_TELNET_OPTION_SYNTAX CURLE_SETOPT_OPTION_SYNTAX
668 
669 /* The following were added in 7.17.1 */
670 /* These are scheduled to disappear by 2009 */
671 #define CURLE_SSL_PEER_CERTIFICATE CURLE_PEER_FAILED_VERIFICATION
672 
673 /* The following were added in 7.17.0 */
674 /* These are scheduled to disappear by 2009 */
675 #define CURLE_OBSOLETE CURLE_OBSOLETE50 /* no one should be using this! */
676 #define CURLE_BAD_PASSWORD_ENTERED CURLE_OBSOLETE46
677 #define CURLE_BAD_CALLING_ORDER CURLE_OBSOLETE44
678 #define CURLE_FTP_USER_PASSWORD_INCORRECT CURLE_OBSOLETE10
679 #define CURLE_FTP_CANT_RECONNECT CURLE_OBSOLETE16
680 #define CURLE_FTP_COULDNT_GET_SIZE CURLE_OBSOLETE32
681 #define CURLE_FTP_COULDNT_SET_ASCII CURLE_OBSOLETE29
682 #define CURLE_FTP_WEIRD_USER_REPLY CURLE_OBSOLETE12
683 #define CURLE_FTP_WRITE_ERROR CURLE_OBSOLETE20
684 #define CURLE_LIBRARY_NOT_FOUND CURLE_OBSOLETE40
685 #define CURLE_MALFORMAT_USER CURLE_OBSOLETE24
686 #define CURLE_SHARE_IN_USE CURLE_OBSOLETE57
687 #define CURLE_URL_MALFORMAT_USER CURLE_NOT_BUILT_IN
688 
689 #define CURLE_FTP_ACCESS_DENIED CURLE_REMOTE_ACCESS_DENIED
690 #define CURLE_FTP_COULDNT_SET_BINARY CURLE_FTP_COULDNT_SET_TYPE
691 #define CURLE_FTP_QUOTE_ERROR CURLE_QUOTE_ERROR
692 #define CURLE_TFTP_DISKFULL CURLE_REMOTE_DISK_FULL
693 #define CURLE_TFTP_EXISTS CURLE_REMOTE_FILE_EXISTS
694 #define CURLE_HTTP_RANGE_ERROR CURLE_RANGE_ERROR
695 #define CURLE_FTP_SSL_FAILED CURLE_USE_SSL_FAILED
696 
697 /* The following were added earlier */
698 
699 #define CURLE_OPERATION_TIMEOUTED CURLE_OPERATION_TIMEDOUT
700 #define CURLE_HTTP_NOT_FOUND CURLE_HTTP_RETURNED_ERROR
701 #define CURLE_HTTP_PORT_FAILED CURLE_INTERFACE_FAILED
702 #define CURLE_FTP_COULDNT_STOR_FILE CURLE_UPLOAD_FAILED
703 #define CURLE_FTP_PARTIAL_FILE CURLE_PARTIAL_FILE
704 #define CURLE_FTP_BAD_DOWNLOAD_RESUME CURLE_BAD_DOWNLOAD_RESUME
705 #define CURLE_LDAP_INVALID_URL CURLE_OBSOLETE62
706 #define CURLE_CONV_REQD CURLE_OBSOLETE76
707 #define CURLE_CONV_FAILED CURLE_OBSOLETE75
708 
709 /* This was the error code 50 in 7.7.3 and a few earlier versions, this
710    is no longer used by libcurl but is instead #defined here only to not
711    make programs break */
712 #define CURLE_ALREADY_COMPLETE 99999
713 
714 /* Provide defines for really old option names */
715 #define CURLOPT_FILE CURLOPT_WRITEDATA /* name changed in 7.9.7 */
716 #define CURLOPT_INFILE CURLOPT_READDATA /* name changed in 7.9.7 */
717 #define CURLOPT_WRITEHEADER CURLOPT_HEADERDATA
718 
719 /* Since long deprecated options with no code in the lib that does anything
720    with them. */
721 #define CURLOPT_WRITEINFO CURLOPT_OBSOLETE40
722 #define CURLOPT_CLOSEPOLICY CURLOPT_OBSOLETE72
723 
724 #endif /* !CURL_NO_OLDIES */
725 
726 /*
727  * Proxy error codes. Returned in CURLINFO_PROXY_ERROR if CURLE_PROXY was
728  * return for the transfers.
729  */
730 typedef enum {
731   CURLPX_OK,
732   CURLPX_BAD_ADDRESS_TYPE,
733   CURLPX_BAD_VERSION,
734   CURLPX_CLOSED,
735   CURLPX_GSSAPI,
736   CURLPX_GSSAPI_PERMSG,
737   CURLPX_GSSAPI_PROTECTION,
738   CURLPX_IDENTD,
739   CURLPX_IDENTD_DIFFER,
740   CURLPX_LONG_HOSTNAME,
741   CURLPX_LONG_PASSWD,
742   CURLPX_LONG_USER,
743   CURLPX_NO_AUTH,
744   CURLPX_RECV_ADDRESS,
745   CURLPX_RECV_AUTH,
746   CURLPX_RECV_CONNECT,
747   CURLPX_RECV_REQACK,
748   CURLPX_REPLY_ADDRESS_TYPE_NOT_SUPPORTED,
749   CURLPX_REPLY_COMMAND_NOT_SUPPORTED,
750   CURLPX_REPLY_CONNECTION_REFUSED,
751   CURLPX_REPLY_GENERAL_SERVER_FAILURE,
752   CURLPX_REPLY_HOST_UNREACHABLE,
753   CURLPX_REPLY_NETWORK_UNREACHABLE,
754   CURLPX_REPLY_NOT_ALLOWED,
755   CURLPX_REPLY_TTL_EXPIRED,
756   CURLPX_REPLY_UNASSIGNED,
757   CURLPX_REQUEST_FAILED,
758   CURLPX_RESOLVE_HOST,
759   CURLPX_SEND_AUTH,
760   CURLPX_SEND_CONNECT,
761   CURLPX_SEND_REQUEST,
762   CURLPX_UNKNOWN_FAIL,
763   CURLPX_UNKNOWN_MODE,
764   CURLPX_USER_REJECTED,
765   CURLPX_LAST /* never use */
766 } CURLproxycode;
767 
768 /* This prototype applies to all conversion callbacks */
769 typedef CURLcode (*curl_conv_callback)(char *buffer, size_t length);
770 
771 typedef CURLcode (*curl_ssl_ctx_callback)(CURL *curl,    /* easy handle */
772                                           void *ssl_ctx, /* actually an OpenSSL
773                                                             or WolfSSL SSL_CTX,
774                                                             or an mbedTLS
775                                                           mbedtls_ssl_config */
776                                           void *userptr);
777 
778 typedef enum {
779   CURLPROXY_HTTP = 0,   /* added in 7.10, new in 7.19.4 default is to use
780                            CONNECT HTTP/1.1 */
781   CURLPROXY_HTTP_1_0 = 1,   /* added in 7.19.4, force to use CONNECT
782                                HTTP/1.0  */
783   CURLPROXY_HTTPS = 2,  /* HTTPS but stick to HTTP/1 added in 7.52.0 */
784   CURLPROXY_HTTPS2 = 3, /* HTTPS and attempt HTTP/2 added in 8.2.0 */
785   CURLPROXY_SOCKS4 = 4, /* support added in 7.15.2, enum existed already
786                            in 7.10 */
787   CURLPROXY_SOCKS5 = 5, /* added in 7.10 */
788   CURLPROXY_SOCKS4A = 6, /* added in 7.18.0 */
789   CURLPROXY_SOCKS5_HOSTNAME = 7 /* Use the SOCKS5 protocol but pass along the
790                                    host name rather than the IP address. added
791                                    in 7.18.0 */
792 } curl_proxytype;  /* this enum was added in 7.10 */
793 
794 /*
795  * Bitmasks for CURLOPT_HTTPAUTH and CURLOPT_PROXYAUTH options:
796  *
797  * CURLAUTH_NONE         - No HTTP authentication
798  * CURLAUTH_BASIC        - HTTP Basic authentication (default)
799  * CURLAUTH_DIGEST       - HTTP Digest authentication
800  * CURLAUTH_NEGOTIATE    - HTTP Negotiate (SPNEGO) authentication
801  * CURLAUTH_GSSNEGOTIATE - Alias for CURLAUTH_NEGOTIATE (deprecated)
802  * CURLAUTH_NTLM         - HTTP NTLM authentication
803  * CURLAUTH_DIGEST_IE    - HTTP Digest authentication with IE flavour
804  * CURLAUTH_NTLM_WB      - HTTP NTLM authentication delegated to winbind helper
805  * CURLAUTH_BEARER       - HTTP Bearer token authentication
806  * CURLAUTH_ONLY         - Use together with a single other type to force no
807  *                         authentication or just that single type
808  * CURLAUTH_ANY          - All fine types set
809  * CURLAUTH_ANYSAFE      - All fine types except Basic
810  */
811 
812 #define CURLAUTH_NONE         ((unsigned long)0)
813 #define CURLAUTH_BASIC        (((unsigned long)1)<<0)
814 #define CURLAUTH_DIGEST       (((unsigned long)1)<<1)
815 #define CURLAUTH_NEGOTIATE    (((unsigned long)1)<<2)
816 /* Deprecated since the advent of CURLAUTH_NEGOTIATE */
817 #define CURLAUTH_GSSNEGOTIATE CURLAUTH_NEGOTIATE
818 /* Used for CURLOPT_SOCKS5_AUTH to stay terminologically correct */
819 #define CURLAUTH_GSSAPI CURLAUTH_NEGOTIATE
820 #define CURLAUTH_NTLM         (((unsigned long)1)<<3)
821 #define CURLAUTH_DIGEST_IE    (((unsigned long)1)<<4)
822 #define CURLAUTH_NTLM_WB      (((unsigned long)1)<<5)
823 #define CURLAUTH_BEARER       (((unsigned long)1)<<6)
824 #define CURLAUTH_AWS_SIGV4    (((unsigned long)1)<<7)
825 #define CURLAUTH_ONLY         (((unsigned long)1)<<31)
826 #define CURLAUTH_ANY          (~CURLAUTH_DIGEST_IE)
827 #define CURLAUTH_ANYSAFE      (~(CURLAUTH_BASIC|CURLAUTH_DIGEST_IE))
828 
829 #define CURLSSH_AUTH_ANY       ~0     /* all types supported by the server */
830 #define CURLSSH_AUTH_NONE      0      /* none allowed, silly but complete */
831 #define CURLSSH_AUTH_PUBLICKEY (1<<0) /* public/private key files */
832 #define CURLSSH_AUTH_PASSWORD  (1<<1) /* password */
833 #define CURLSSH_AUTH_HOST      (1<<2) /* host key files */
834 #define CURLSSH_AUTH_KEYBOARD  (1<<3) /* keyboard interactive */
835 #define CURLSSH_AUTH_AGENT     (1<<4) /* agent (ssh-agent, pageant...) */
836 #define CURLSSH_AUTH_GSSAPI    (1<<5) /* gssapi (kerberos, ...) */
837 #define CURLSSH_AUTH_DEFAULT CURLSSH_AUTH_ANY
838 
839 #define CURLGSSAPI_DELEGATION_NONE        0      /* no delegation (default) */
840 #define CURLGSSAPI_DELEGATION_POLICY_FLAG (1<<0) /* if permitted by policy */
841 #define CURLGSSAPI_DELEGATION_FLAG        (1<<1) /* delegate always */
842 
843 #define CURL_ERROR_SIZE 256
844 
845 enum curl_khtype {
846   CURLKHTYPE_UNKNOWN,
847   CURLKHTYPE_RSA1,
848   CURLKHTYPE_RSA,
849   CURLKHTYPE_DSS,
850   CURLKHTYPE_ECDSA,
851   CURLKHTYPE_ED25519
852 };
853 
854 struct curl_khkey {
855   const char *key; /* points to a null-terminated string encoded with base64
856                       if len is zero, otherwise to the "raw" data */
857   size_t len;
858   enum curl_khtype keytype;
859 };
860 
861 /* this is the set of return values expected from the curl_sshkeycallback
862    callback */
863 enum curl_khstat {
864   CURLKHSTAT_FINE_ADD_TO_FILE,
865   CURLKHSTAT_FINE,
866   CURLKHSTAT_REJECT, /* reject the connection, return an error */
867   CURLKHSTAT_DEFER,  /* do not accept it, but we can't answer right now.
868                         Causes a CURLE_PEER_FAILED_VERIFICATION error but the
869                         connection will be left intact etc */
870   CURLKHSTAT_FINE_REPLACE, /* accept and replace the wrong key */
871   CURLKHSTAT_LAST    /* not for use, only a marker for last-in-list */
872 };
873 
874 /* this is the set of status codes pass in to the callback */
875 enum curl_khmatch {
876   CURLKHMATCH_OK,       /* match */
877   CURLKHMATCH_MISMATCH, /* host found, key mismatch! */
878   CURLKHMATCH_MISSING,  /* no matching host/key found */
879   CURLKHMATCH_LAST      /* not for use, only a marker for last-in-list */
880 };
881 
882 typedef int
883   (*curl_sshkeycallback) (CURL *easy,     /* easy handle */
884                           const struct curl_khkey *knownkey, /* known */
885                           const struct curl_khkey *foundkey, /* found */
886                           enum curl_khmatch, /* libcurl's view on the keys */
887                           void *clientp); /* custom pointer passed with */
888                                           /* CURLOPT_SSH_KEYDATA */
889 
890 typedef int
891   (*curl_sshhostkeycallback) (void *clientp,/* custom pointer passed */
892                                             /* with CURLOPT_SSH_HOSTKEYDATA */
893                           int keytype, /* CURLKHTYPE */
894                           const char *key, /* hostkey to check */
895                           size_t keylen); /* length of the key */
896                           /* return CURLE_OK to accept */
897                           /* or something else to refuse */
898 
899 
900 /* parameter for the CURLOPT_USE_SSL option */
901 typedef enum {
902   CURLUSESSL_NONE,    /* do not attempt to use SSL */
903   CURLUSESSL_TRY,     /* try using SSL, proceed anyway otherwise */
904   CURLUSESSL_CONTROL, /* SSL for the control connection or fail */
905   CURLUSESSL_ALL,     /* SSL for all communication or fail */
906   CURLUSESSL_LAST     /* not an option, never use */
907 } curl_usessl;
908 
909 /* Definition of bits for the CURLOPT_SSL_OPTIONS argument: */
910 
911 /* - ALLOW_BEAST tells libcurl to allow the BEAST SSL vulnerability in the
912    name of improving interoperability with older servers. Some SSL libraries
913    have introduced work-arounds for this flaw but those work-arounds sometimes
914    make the SSL communication fail. To regain functionality with those broken
915    servers, a user can this way allow the vulnerability back. */
916 #define CURLSSLOPT_ALLOW_BEAST (1<<0)
917 
918 /* - NO_REVOKE tells libcurl to disable certificate revocation checks for those
919    SSL backends where such behavior is present. */
920 #define CURLSSLOPT_NO_REVOKE (1<<1)
921 
922 /* - NO_PARTIALCHAIN tells libcurl to *NOT* accept a partial certificate chain
923    if possible. The OpenSSL backend has this ability. */
924 #define CURLSSLOPT_NO_PARTIALCHAIN (1<<2)
925 
926 /* - REVOKE_BEST_EFFORT tells libcurl to ignore certificate revocation offline
927    checks and ignore missing revocation list for those SSL backends where such
928    behavior is present. */
929 #define CURLSSLOPT_REVOKE_BEST_EFFORT (1<<3)
930 
931 /* - CURLSSLOPT_NATIVE_CA tells libcurl to use standard certificate store of
932    operating system. Currently implemented under MS-Windows. */
933 #define CURLSSLOPT_NATIVE_CA (1<<4)
934 
935 /* - CURLSSLOPT_AUTO_CLIENT_CERT tells libcurl to automatically locate and use
936    a client certificate for authentication. (Schannel) */
937 #define CURLSSLOPT_AUTO_CLIENT_CERT (1<<5)
938 
939 /* The default connection attempt delay in milliseconds for happy eyeballs.
940    CURLOPT_HAPPY_EYEBALLS_TIMEOUT_MS.3 and happy-eyeballs-timeout-ms.d document
941    this value, keep them in sync. */
942 #define CURL_HET_DEFAULT 200L
943 
944 /* The default connection upkeep interval in milliseconds. */
945 #define CURL_UPKEEP_INTERVAL_DEFAULT 60000L
946 
947 #ifndef CURL_NO_OLDIES /* define this to test if your app builds with all
948                           the obsolete stuff removed! */
949 
950 /* Backwards compatibility with older names */
951 /* These are scheduled to disappear by 2009 */
952 
953 #define CURLFTPSSL_NONE CURLUSESSL_NONE
954 #define CURLFTPSSL_TRY CURLUSESSL_TRY
955 #define CURLFTPSSL_CONTROL CURLUSESSL_CONTROL
956 #define CURLFTPSSL_ALL CURLUSESSL_ALL
957 #define CURLFTPSSL_LAST CURLUSESSL_LAST
958 #define curl_ftpssl curl_usessl
959 #endif /* !CURL_NO_OLDIES */
960 
961 /* parameter for the CURLOPT_FTP_SSL_CCC option */
962 typedef enum {
963   CURLFTPSSL_CCC_NONE,    /* do not send CCC */
964   CURLFTPSSL_CCC_PASSIVE, /* Let the server initiate the shutdown */
965   CURLFTPSSL_CCC_ACTIVE,  /* Initiate the shutdown */
966   CURLFTPSSL_CCC_LAST     /* not an option, never use */
967 } curl_ftpccc;
968 
969 /* parameter for the CURLOPT_FTPSSLAUTH option */
970 typedef enum {
971   CURLFTPAUTH_DEFAULT, /* let libcurl decide */
972   CURLFTPAUTH_SSL,     /* use "AUTH SSL" */
973   CURLFTPAUTH_TLS,     /* use "AUTH TLS" */
974   CURLFTPAUTH_LAST /* not an option, never use */
975 } curl_ftpauth;
976 
977 /* parameter for the CURLOPT_FTP_CREATE_MISSING_DIRS option */
978 typedef enum {
979   CURLFTP_CREATE_DIR_NONE,  /* do NOT create missing dirs! */
980   CURLFTP_CREATE_DIR,       /* (FTP/SFTP) if CWD fails, try MKD and then CWD
981                                again if MKD succeeded, for SFTP this does
982                                similar magic */
983   CURLFTP_CREATE_DIR_RETRY, /* (FTP only) if CWD fails, try MKD and then CWD
984                                again even if MKD failed! */
985   CURLFTP_CREATE_DIR_LAST   /* not an option, never use */
986 } curl_ftpcreatedir;
987 
988 /* parameter for the CURLOPT_FTP_FILEMETHOD option */
989 typedef enum {
990   CURLFTPMETHOD_DEFAULT,   /* let libcurl pick */
991   CURLFTPMETHOD_MULTICWD,  /* single CWD operation for each path part */
992   CURLFTPMETHOD_NOCWD,     /* no CWD at all */
993   CURLFTPMETHOD_SINGLECWD, /* one CWD to full dir, then work on file */
994   CURLFTPMETHOD_LAST       /* not an option, never use */
995 } curl_ftpmethod;
996 
997 /* bitmask defines for CURLOPT_HEADEROPT */
998 #define CURLHEADER_UNIFIED  0
999 #define CURLHEADER_SEPARATE (1<<0)
1000 
1001 /* CURLALTSVC_* are bits for the CURLOPT_ALTSVC_CTRL option */
1002 #define CURLALTSVC_READONLYFILE (1<<2)
1003 #define CURLALTSVC_H1           (1<<3)
1004 #define CURLALTSVC_H2           (1<<4)
1005 #define CURLALTSVC_H3           (1<<5)
1006 
1007 
1008 struct curl_hstsentry {
1009   char *name;
1010   size_t namelen;
1011   unsigned int includeSubDomains:1;
1012   char expire[18]; /* YYYYMMDD HH:MM:SS [null-terminated] */
1013 };
1014 
1015 struct curl_index {
1016   size_t index; /* the provided entry's "index" or count */
1017   size_t total; /* total number of entries to save */
1018 };
1019 
1020 typedef enum {
1021   CURLSTS_OK,
1022   CURLSTS_DONE,
1023   CURLSTS_FAIL
1024 } CURLSTScode;
1025 
1026 typedef CURLSTScode (*curl_hstsread_callback)(CURL *easy,
1027                                               struct curl_hstsentry *e,
1028                                               void *userp);
1029 typedef CURLSTScode (*curl_hstswrite_callback)(CURL *easy,
1030                                                struct curl_hstsentry *e,
1031                                                struct curl_index *i,
1032                                                void *userp);
1033 
1034 /* CURLHSTS_* are bits for the CURLOPT_HSTS option */
1035 #define CURLHSTS_ENABLE       (long)(1<<0)
1036 #define CURLHSTS_READONLYFILE (long)(1<<1)
1037 
1038 /* The CURLPROTO_ defines below are for the **deprecated** CURLOPT_*PROTOCOLS
1039    options. Do not use. */
1040 #define CURLPROTO_HTTP   (1<<0)
1041 #define CURLPROTO_HTTPS  (1<<1)
1042 #define CURLPROTO_FTP    (1<<2)
1043 #define CURLPROTO_FTPS   (1<<3)
1044 #define CURLPROTO_SCP    (1<<4)
1045 #define CURLPROTO_SFTP   (1<<5)
1046 #define CURLPROTO_TELNET (1<<6)
1047 #define CURLPROTO_LDAP   (1<<7)
1048 #define CURLPROTO_LDAPS  (1<<8)
1049 #define CURLPROTO_DICT   (1<<9)
1050 #define CURLPROTO_FILE   (1<<10)
1051 #define CURLPROTO_TFTP   (1<<11)
1052 #define CURLPROTO_IMAP   (1<<12)
1053 #define CURLPROTO_IMAPS  (1<<13)
1054 #define CURLPROTO_POP3   (1<<14)
1055 #define CURLPROTO_POP3S  (1<<15)
1056 #define CURLPROTO_SMTP   (1<<16)
1057 #define CURLPROTO_SMTPS  (1<<17)
1058 #define CURLPROTO_RTSP   (1<<18)
1059 #define CURLPROTO_RTMP   (1<<19)
1060 #define CURLPROTO_RTMPT  (1<<20)
1061 #define CURLPROTO_RTMPE  (1<<21)
1062 #define CURLPROTO_RTMPTE (1<<22)
1063 #define CURLPROTO_RTMPS  (1<<23)
1064 #define CURLPROTO_RTMPTS (1<<24)
1065 #define CURLPROTO_GOPHER (1<<25)
1066 #define CURLPROTO_SMB    (1<<26)
1067 #define CURLPROTO_SMBS   (1<<27)
1068 #define CURLPROTO_MQTT   (1<<28)
1069 #define CURLPROTO_GOPHERS (1<<29)
1070 #define CURLPROTO_ALL    (~0) /* enable everything */
1071 
1072 /* long may be 32 or 64 bits, but we should never depend on anything else
1073    but 32 */
1074 #define CURLOPTTYPE_LONG          0
1075 #define CURLOPTTYPE_OBJECTPOINT   10000
1076 #define CURLOPTTYPE_FUNCTIONPOINT 20000
1077 #define CURLOPTTYPE_OFF_T         30000
1078 #define CURLOPTTYPE_BLOB          40000
1079 
1080 /* *STRINGPOINT is an alias for OBJECTPOINT to allow tools to extract the
1081    string options from the header file */
1082 
1083 
1084 #define CURLOPT(na,t,nu) na = t + nu
1085 #define CURLOPTDEPRECATED(na,t,nu,v,m) na CURL_DEPRECATED(v,m) = t + nu
1086 
1087 /* CURLOPT aliases that make no run-time difference */
1088 
1089 /* 'char *' argument to a string with a trailing zero */
1090 #define CURLOPTTYPE_STRINGPOINT CURLOPTTYPE_OBJECTPOINT
1091 
1092 /* 'struct curl_slist *' argument */
1093 #define CURLOPTTYPE_SLISTPOINT  CURLOPTTYPE_OBJECTPOINT
1094 
1095 /* 'void *' argument passed untouched to callback */
1096 #define CURLOPTTYPE_CBPOINT     CURLOPTTYPE_OBJECTPOINT
1097 
1098 /* 'long' argument with a set of values/bitmask */
1099 #define CURLOPTTYPE_VALUES      CURLOPTTYPE_LONG
1100 
1101 /*
1102  * All CURLOPT_* values.
1103  */
1104 
1105 typedef enum {
1106   /* This is the FILE * or void * the regular output should be written to. */
1107   CURLOPT(CURLOPT_WRITEDATA, CURLOPTTYPE_CBPOINT, 1),
1108 
1109   /* The full URL to get/put */
1110   CURLOPT(CURLOPT_URL, CURLOPTTYPE_STRINGPOINT, 2),
1111 
1112   /* Port number to connect to, if other than default. */
1113   CURLOPT(CURLOPT_PORT, CURLOPTTYPE_LONG, 3),
1114 
1115   /* Name of proxy to use. */
1116   CURLOPT(CURLOPT_PROXY, CURLOPTTYPE_STRINGPOINT, 4),
1117 
1118   /* "user:password;options" to use when fetching. */
1119   CURLOPT(CURLOPT_USERPWD, CURLOPTTYPE_STRINGPOINT, 5),
1120 
1121   /* "user:password" to use with proxy. */
1122   CURLOPT(CURLOPT_PROXYUSERPWD, CURLOPTTYPE_STRINGPOINT, 6),
1123 
1124   /* Range to get, specified as an ASCII string. */
1125   CURLOPT(CURLOPT_RANGE, CURLOPTTYPE_STRINGPOINT, 7),
1126 
1127   /* not used */
1128 
1129   /* Specified file stream to upload from (use as input): */
1130   CURLOPT(CURLOPT_READDATA, CURLOPTTYPE_CBPOINT, 9),
1131 
1132   /* Buffer to receive error messages in, must be at least CURL_ERROR_SIZE
1133    * bytes big. */
1134   CURLOPT(CURLOPT_ERRORBUFFER, CURLOPTTYPE_OBJECTPOINT, 10),
1135 
1136   /* Function that will be called to store the output (instead of fwrite). The
1137    * parameters will use fwrite() syntax, make sure to follow them. */
1138   CURLOPT(CURLOPT_WRITEFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 11),
1139 
1140   /* Function that will be called to read the input (instead of fread). The
1141    * parameters will use fread() syntax, make sure to follow them. */
1142   CURLOPT(CURLOPT_READFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 12),
1143 
1144   /* Time-out the read operation after this amount of seconds */
1145   CURLOPT(CURLOPT_TIMEOUT, CURLOPTTYPE_LONG, 13),
1146 
1147   /* If CURLOPT_READDATA is used, this can be used to inform libcurl about
1148    * how large the file being sent really is. That allows better error
1149    * checking and better verifies that the upload was successful. -1 means
1150    * unknown size.
1151    *
1152    * For large file support, there is also a _LARGE version of the key
1153    * which takes an off_t type, allowing platforms with larger off_t
1154    * sizes to handle larger files.  See below for INFILESIZE_LARGE.
1155    */
1156   CURLOPT(CURLOPT_INFILESIZE, CURLOPTTYPE_LONG, 14),
1157 
1158   /* POST static input fields. */
1159   CURLOPT(CURLOPT_POSTFIELDS, CURLOPTTYPE_OBJECTPOINT, 15),
1160 
1161   /* Set the referrer page (needed by some CGIs) */
1162   CURLOPT(CURLOPT_REFERER, CURLOPTTYPE_STRINGPOINT, 16),
1163 
1164   /* Set the FTP PORT string (interface name, named or numerical IP address)
1165      Use i.e '-' to use default address. */
1166   CURLOPT(CURLOPT_FTPPORT, CURLOPTTYPE_STRINGPOINT, 17),
1167 
1168   /* Set the User-Agent string (examined by some CGIs) */
1169   CURLOPT(CURLOPT_USERAGENT, CURLOPTTYPE_STRINGPOINT, 18),
1170 
1171   /* If the download receives less than "low speed limit" bytes/second
1172    * during "low speed time" seconds, the operations is aborted.
1173    * You could i.e if you have a pretty high speed connection, abort if
1174    * it is less than 2000 bytes/sec during 20 seconds.
1175    */
1176 
1177   /* Set the "low speed limit" */
1178   CURLOPT(CURLOPT_LOW_SPEED_LIMIT, CURLOPTTYPE_LONG, 19),
1179 
1180   /* Set the "low speed time" */
1181   CURLOPT(CURLOPT_LOW_SPEED_TIME, CURLOPTTYPE_LONG, 20),
1182 
1183   /* Set the continuation offset.
1184    *
1185    * Note there is also a _LARGE version of this key which uses
1186    * off_t types, allowing for large file offsets on platforms which
1187    * use larger-than-32-bit off_t's.  Look below for RESUME_FROM_LARGE.
1188    */
1189   CURLOPT(CURLOPT_RESUME_FROM, CURLOPTTYPE_LONG, 21),
1190 
1191   /* Set cookie in request: */
1192   CURLOPT(CURLOPT_COOKIE, CURLOPTTYPE_STRINGPOINT, 22),
1193 
1194   /* This points to a linked list of headers, struct curl_slist kind. This
1195      list is also used for RTSP (in spite of its name) */
1196   CURLOPT(CURLOPT_HTTPHEADER, CURLOPTTYPE_SLISTPOINT, 23),
1197 
1198   /* This points to a linked list of post entries, struct curl_httppost */
1199   CURLOPTDEPRECATED(CURLOPT_HTTPPOST, CURLOPTTYPE_OBJECTPOINT, 24,
1200                     7.56.0, "Use CURLOPT_MIMEPOST"),
1201 
1202   /* name of the file keeping your private SSL-certificate */
1203   CURLOPT(CURLOPT_SSLCERT, CURLOPTTYPE_STRINGPOINT, 25),
1204 
1205   /* password for the SSL or SSH private key */
1206   CURLOPT(CURLOPT_KEYPASSWD, CURLOPTTYPE_STRINGPOINT, 26),
1207 
1208   /* send TYPE parameter? */
1209   CURLOPT(CURLOPT_CRLF, CURLOPTTYPE_LONG, 27),
1210 
1211   /* send linked-list of QUOTE commands */
1212   CURLOPT(CURLOPT_QUOTE, CURLOPTTYPE_SLISTPOINT, 28),
1213 
1214   /* send FILE * or void * to store headers to, if you use a callback it
1215      is simply passed to the callback unmodified */
1216   CURLOPT(CURLOPT_HEADERDATA, CURLOPTTYPE_CBPOINT, 29),
1217 
1218   /* point to a file to read the initial cookies from, also enables
1219      "cookie awareness" */
1220   CURLOPT(CURLOPT_COOKIEFILE, CURLOPTTYPE_STRINGPOINT, 31),
1221 
1222   /* What version to specifically try to use.
1223      See CURL_SSLVERSION defines below. */
1224   CURLOPT(CURLOPT_SSLVERSION, CURLOPTTYPE_VALUES, 32),
1225 
1226   /* What kind of HTTP time condition to use, see defines */
1227   CURLOPT(CURLOPT_TIMECONDITION, CURLOPTTYPE_VALUES, 33),
1228 
1229   /* Time to use with the above condition. Specified in number of seconds
1230      since 1 Jan 1970 */
1231   CURLOPT(CURLOPT_TIMEVALUE, CURLOPTTYPE_LONG, 34),
1232 
1233   /* 35 = OBSOLETE */
1234 
1235   /* Custom request, for customizing the get command like
1236      HTTP: DELETE, TRACE and others
1237      FTP: to use a different list command
1238      */
1239   CURLOPT(CURLOPT_CUSTOMREQUEST, CURLOPTTYPE_STRINGPOINT, 36),
1240 
1241   /* FILE handle to use instead of stderr */
1242   CURLOPT(CURLOPT_STDERR, CURLOPTTYPE_OBJECTPOINT, 37),
1243 
1244   /* 38 is not used */
1245 
1246   /* send linked-list of post-transfer QUOTE commands */
1247   CURLOPT(CURLOPT_POSTQUOTE, CURLOPTTYPE_SLISTPOINT, 39),
1248 
1249    /* OBSOLETE, do not use! */
1250   CURLOPT(CURLOPT_OBSOLETE40, CURLOPTTYPE_OBJECTPOINT, 40),
1251 
1252   /* talk a lot */
1253   CURLOPT(CURLOPT_VERBOSE, CURLOPTTYPE_LONG, 41),
1254 
1255   /* throw the header out too */
1256   CURLOPT(CURLOPT_HEADER, CURLOPTTYPE_LONG, 42),
1257 
1258   /* shut off the progress meter */
1259   CURLOPT(CURLOPT_NOPROGRESS, CURLOPTTYPE_LONG, 43),
1260 
1261   /* use HEAD to get http document */
1262   CURLOPT(CURLOPT_NOBODY, CURLOPTTYPE_LONG, 44),
1263 
1264   /* no output on http error codes >= 400 */
1265   CURLOPT(CURLOPT_FAILONERROR, CURLOPTTYPE_LONG, 45),
1266 
1267   /* this is an upload */
1268   CURLOPT(CURLOPT_UPLOAD, CURLOPTTYPE_LONG, 46),
1269 
1270   /* HTTP POST method */
1271   CURLOPT(CURLOPT_POST, CURLOPTTYPE_LONG, 47),
1272 
1273   /* bare names when listing directories */
1274   CURLOPT(CURLOPT_DIRLISTONLY, CURLOPTTYPE_LONG, 48),
1275 
1276   /* Append instead of overwrite on upload! */
1277   CURLOPT(CURLOPT_APPEND, CURLOPTTYPE_LONG, 50),
1278 
1279   /* Specify whether to read the user+password from the .netrc or the URL.
1280    * This must be one of the CURL_NETRC_* enums below. */
1281   CURLOPT(CURLOPT_NETRC, CURLOPTTYPE_VALUES, 51),
1282 
1283   /* use Location: Luke! */
1284   CURLOPT(CURLOPT_FOLLOWLOCATION, CURLOPTTYPE_LONG, 52),
1285 
1286    /* transfer data in text/ASCII format */
1287   CURLOPT(CURLOPT_TRANSFERTEXT, CURLOPTTYPE_LONG, 53),
1288 
1289   /* HTTP PUT */
1290   CURLOPTDEPRECATED(CURLOPT_PUT, CURLOPTTYPE_LONG, 54,
1291                     7.12.1, "Use CURLOPT_UPLOAD"),
1292 
1293   /* 55 = OBSOLETE */
1294 
1295   /* DEPRECATED
1296    * Function that will be called instead of the internal progress display
1297    * function. This function should be defined as the curl_progress_callback
1298    * prototype defines. */
1299   CURLOPTDEPRECATED(CURLOPT_PROGRESSFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 56,
1300                     7.32.0, "Use CURLOPT_XFERINFOFUNCTION"),
1301 
1302   /* Data passed to the CURLOPT_PROGRESSFUNCTION and CURLOPT_XFERINFOFUNCTION
1303      callbacks */
1304   CURLOPT(CURLOPT_XFERINFODATA, CURLOPTTYPE_CBPOINT, 57),
1305 #define CURLOPT_PROGRESSDATA CURLOPT_XFERINFODATA
1306 
1307   /* We want the referrer field set automatically when following locations */
1308   CURLOPT(CURLOPT_AUTOREFERER, CURLOPTTYPE_LONG, 58),
1309 
1310   /* Port of the proxy, can be set in the proxy string as well with:
1311      "[host]:[port]" */
1312   CURLOPT(CURLOPT_PROXYPORT, CURLOPTTYPE_LONG, 59),
1313 
1314   /* size of the POST input data, if strlen() is not good to use */
1315   CURLOPT(CURLOPT_POSTFIELDSIZE, CURLOPTTYPE_LONG, 60),
1316 
1317   /* tunnel non-http operations through an HTTP proxy */
1318   CURLOPT(CURLOPT_HTTPPROXYTUNNEL, CURLOPTTYPE_LONG, 61),
1319 
1320   /* Set the interface string to use as outgoing network interface */
1321   CURLOPT(CURLOPT_INTERFACE, CURLOPTTYPE_STRINGPOINT, 62),
1322 
1323   /* Set the krb4/5 security level, this also enables krb4/5 awareness.  This
1324    * is a string, 'clear', 'safe', 'confidential' or 'private'.  If the string
1325    * is set but doesn't match one of these, 'private' will be used.  */
1326   CURLOPT(CURLOPT_KRBLEVEL, CURLOPTTYPE_STRINGPOINT, 63),
1327 
1328   /* Set if we should verify the peer in ssl handshake, set 1 to verify. */
1329   CURLOPT(CURLOPT_SSL_VERIFYPEER, CURLOPTTYPE_LONG, 64),
1330 
1331   /* The CApath or CAfile used to validate the peer certificate
1332      this option is used only if SSL_VERIFYPEER is true */
1333   CURLOPT(CURLOPT_CAINFO, CURLOPTTYPE_STRINGPOINT, 65),
1334 
1335   /* 66 = OBSOLETE */
1336   /* 67 = OBSOLETE */
1337 
1338   /* Maximum number of http redirects to follow */
1339   CURLOPT(CURLOPT_MAXREDIRS, CURLOPTTYPE_LONG, 68),
1340 
1341   /* Pass a long set to 1 to get the date of the requested document (if
1342      possible)! Pass a zero to shut it off. */
1343   CURLOPT(CURLOPT_FILETIME, CURLOPTTYPE_LONG, 69),
1344 
1345   /* This points to a linked list of telnet options */
1346   CURLOPT(CURLOPT_TELNETOPTIONS, CURLOPTTYPE_SLISTPOINT, 70),
1347 
1348   /* Max amount of cached alive connections */
1349   CURLOPT(CURLOPT_MAXCONNECTS, CURLOPTTYPE_LONG, 71),
1350 
1351   /* OBSOLETE, do not use! */
1352   CURLOPT(CURLOPT_OBSOLETE72, CURLOPTTYPE_LONG, 72),
1353 
1354   /* 73 = OBSOLETE */
1355 
1356   /* Set to explicitly use a new connection for the upcoming transfer.
1357      Do not use this unless you're absolutely sure of this, as it makes the
1358      operation slower and is less friendly for the network. */
1359   CURLOPT(CURLOPT_FRESH_CONNECT, CURLOPTTYPE_LONG, 74),
1360 
1361   /* Set to explicitly forbid the upcoming transfer's connection to be reused
1362      when done. Do not use this unless you're absolutely sure of this, as it
1363      makes the operation slower and is less friendly for the network. */
1364   CURLOPT(CURLOPT_FORBID_REUSE, CURLOPTTYPE_LONG, 75),
1365 
1366   /* Set to a file name that contains random data for libcurl to use to
1367      seed the random engine when doing SSL connects. */
1368   CURLOPTDEPRECATED(CURLOPT_RANDOM_FILE, CURLOPTTYPE_STRINGPOINT, 76,
1369                     7.84.0, "Serves no purpose anymore"),
1370 
1371   /* Set to the Entropy Gathering Daemon socket pathname */
1372   CURLOPTDEPRECATED(CURLOPT_EGDSOCKET, CURLOPTTYPE_STRINGPOINT, 77,
1373                     7.84.0, "Serves no purpose anymore"),
1374 
1375   /* Time-out connect operations after this amount of seconds, if connects are
1376      OK within this time, then fine... This only aborts the connect phase. */
1377   CURLOPT(CURLOPT_CONNECTTIMEOUT, CURLOPTTYPE_LONG, 78),
1378 
1379   /* Function that will be called to store headers (instead of fwrite). The
1380    * parameters will use fwrite() syntax, make sure to follow them. */
1381   CURLOPT(CURLOPT_HEADERFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 79),
1382 
1383   /* Set this to force the HTTP request to get back to GET. Only really usable
1384      if POST, PUT or a custom request have been used first.
1385    */
1386   CURLOPT(CURLOPT_HTTPGET, CURLOPTTYPE_LONG, 80),
1387 
1388   /* Set if we should verify the Common name from the peer certificate in ssl
1389    * handshake, set 1 to check existence, 2 to ensure that it matches the
1390    * provided hostname. */
1391   CURLOPT(CURLOPT_SSL_VERIFYHOST, CURLOPTTYPE_LONG, 81),
1392 
1393   /* Specify which file name to write all known cookies in after completed
1394      operation. Set file name to "-" (dash) to make it go to stdout. */
1395   CURLOPT(CURLOPT_COOKIEJAR, CURLOPTTYPE_STRINGPOINT, 82),
1396 
1397   /* Specify which SSL ciphers to use */
1398   CURLOPT(CURLOPT_SSL_CIPHER_LIST, CURLOPTTYPE_STRINGPOINT, 83),
1399 
1400   /* Specify which HTTP version to use! This must be set to one of the
1401      CURL_HTTP_VERSION* enums set below. */
1402   CURLOPT(CURLOPT_HTTP_VERSION, CURLOPTTYPE_VALUES, 84),
1403 
1404   /* Specifically switch on or off the FTP engine's use of the EPSV command. By
1405      default, that one will always be attempted before the more traditional
1406      PASV command. */
1407   CURLOPT(CURLOPT_FTP_USE_EPSV, CURLOPTTYPE_LONG, 85),
1408 
1409   /* type of the file keeping your SSL-certificate ("DER", "PEM", "ENG") */
1410   CURLOPT(CURLOPT_SSLCERTTYPE, CURLOPTTYPE_STRINGPOINT, 86),
1411 
1412   /* name of the file keeping your private SSL-key */
1413   CURLOPT(CURLOPT_SSLKEY, CURLOPTTYPE_STRINGPOINT, 87),
1414 
1415   /* type of the file keeping your private SSL-key ("DER", "PEM", "ENG") */
1416   CURLOPT(CURLOPT_SSLKEYTYPE, CURLOPTTYPE_STRINGPOINT, 88),
1417 
1418   /* crypto engine for the SSL-sub system */
1419   CURLOPT(CURLOPT_SSLENGINE, CURLOPTTYPE_STRINGPOINT, 89),
1420 
1421   /* set the crypto engine for the SSL-sub system as default
1422      the param has no meaning...
1423    */
1424   CURLOPT(CURLOPT_SSLENGINE_DEFAULT, CURLOPTTYPE_LONG, 90),
1425 
1426   /* Non-zero value means to use the global dns cache */
1427   /* DEPRECATED, do not use! */
1428   CURLOPTDEPRECATED(CURLOPT_DNS_USE_GLOBAL_CACHE, CURLOPTTYPE_LONG, 91,
1429                     7.11.1, "Use CURLOPT_SHARE"),
1430 
1431   /* DNS cache timeout */
1432   CURLOPT(CURLOPT_DNS_CACHE_TIMEOUT, CURLOPTTYPE_LONG, 92),
1433 
1434   /* send linked-list of pre-transfer QUOTE commands */
1435   CURLOPT(CURLOPT_PREQUOTE, CURLOPTTYPE_SLISTPOINT, 93),
1436 
1437   /* set the debug function */
1438   CURLOPT(CURLOPT_DEBUGFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 94),
1439 
1440   /* set the data for the debug function */
1441   CURLOPT(CURLOPT_DEBUGDATA, CURLOPTTYPE_CBPOINT, 95),
1442 
1443   /* mark this as start of a cookie session */
1444   CURLOPT(CURLOPT_COOKIESESSION, CURLOPTTYPE_LONG, 96),
1445 
1446   /* The CApath directory used to validate the peer certificate
1447      this option is used only if SSL_VERIFYPEER is true */
1448   CURLOPT(CURLOPT_CAPATH, CURLOPTTYPE_STRINGPOINT, 97),
1449 
1450   /* Instruct libcurl to use a smaller receive buffer */
1451   CURLOPT(CURLOPT_BUFFERSIZE, CURLOPTTYPE_LONG, 98),
1452 
1453   /* Instruct libcurl to not use any signal/alarm handlers, even when using
1454      timeouts. This option is useful for multi-threaded applications.
1455      See libcurl-the-guide for more background information. */
1456   CURLOPT(CURLOPT_NOSIGNAL, CURLOPTTYPE_LONG, 99),
1457 
1458   /* Provide a CURLShare for mutexing non-ts data */
1459   CURLOPT(CURLOPT_SHARE, CURLOPTTYPE_OBJECTPOINT, 100),
1460 
1461   /* indicates type of proxy. accepted values are CURLPROXY_HTTP (default),
1462      CURLPROXY_HTTPS, CURLPROXY_SOCKS4, CURLPROXY_SOCKS4A and
1463      CURLPROXY_SOCKS5. */
1464   CURLOPT(CURLOPT_PROXYTYPE, CURLOPTTYPE_VALUES, 101),
1465 
1466   /* Set the Accept-Encoding string. Use this to tell a server you would like
1467      the response to be compressed. Before 7.21.6, this was known as
1468      CURLOPT_ENCODING */
1469   CURLOPT(CURLOPT_ACCEPT_ENCODING, CURLOPTTYPE_STRINGPOINT, 102),
1470 
1471   /* Set pointer to private data */
1472   CURLOPT(CURLOPT_PRIVATE, CURLOPTTYPE_OBJECTPOINT, 103),
1473 
1474   /* Set aliases for HTTP 200 in the HTTP Response header */
1475   CURLOPT(CURLOPT_HTTP200ALIASES, CURLOPTTYPE_SLISTPOINT, 104),
1476 
1477   /* Continue to send authentication (user+password) when following locations,
1478      even when hostname changed. This can potentially send off the name
1479      and password to whatever host the server decides. */
1480   CURLOPT(CURLOPT_UNRESTRICTED_AUTH, CURLOPTTYPE_LONG, 105),
1481 
1482   /* Specifically switch on or off the FTP engine's use of the EPRT command (
1483      it also disables the LPRT attempt). By default, those ones will always be
1484      attempted before the good old traditional PORT command. */
1485   CURLOPT(CURLOPT_FTP_USE_EPRT, CURLOPTTYPE_LONG, 106),
1486 
1487   /* Set this to a bitmask value to enable the particular authentications
1488      methods you like. Use this in combination with CURLOPT_USERPWD.
1489      Note that setting multiple bits may cause extra network round-trips. */
1490   CURLOPT(CURLOPT_HTTPAUTH, CURLOPTTYPE_VALUES, 107),
1491 
1492   /* Set the ssl context callback function, currently only for OpenSSL or
1493      WolfSSL ssl_ctx, or mbedTLS mbedtls_ssl_config in the second argument.
1494      The function must match the curl_ssl_ctx_callback prototype. */
1495   CURLOPT(CURLOPT_SSL_CTX_FUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 108),
1496 
1497   /* Set the userdata for the ssl context callback function's third
1498      argument */
1499   CURLOPT(CURLOPT_SSL_CTX_DATA, CURLOPTTYPE_CBPOINT, 109),
1500 
1501   /* FTP Option that causes missing dirs to be created on the remote server.
1502      In 7.19.4 we introduced the convenience enums for this option using the
1503      CURLFTP_CREATE_DIR prefix.
1504   */
1505   CURLOPT(CURLOPT_FTP_CREATE_MISSING_DIRS, CURLOPTTYPE_LONG, 110),
1506 
1507   /* Set this to a bitmask value to enable the particular authentications
1508      methods you like. Use this in combination with CURLOPT_PROXYUSERPWD.
1509      Note that setting multiple bits may cause extra network round-trips. */
1510   CURLOPT(CURLOPT_PROXYAUTH, CURLOPTTYPE_VALUES, 111),
1511 
1512   /* Option that changes the timeout, in seconds, associated with getting a
1513      response.  This is different from transfer timeout time and essentially
1514      places a demand on the server to acknowledge commands in a timely
1515      manner. For FTP, SMTP, IMAP and POP3. */
1516   CURLOPT(CURLOPT_SERVER_RESPONSE_TIMEOUT, CURLOPTTYPE_LONG, 112),
1517 
1518   /* Set this option to one of the CURL_IPRESOLVE_* defines (see below) to
1519      tell libcurl to use those IP versions only. This only has effect on
1520      systems with support for more than one, i.e IPv4 _and_ IPv6. */
1521   CURLOPT(CURLOPT_IPRESOLVE, CURLOPTTYPE_VALUES, 113),
1522 
1523   /* Set this option to limit the size of a file that will be downloaded from
1524      an HTTP or FTP server.
1525 
1526      Note there is also _LARGE version which adds large file support for
1527      platforms which have larger off_t sizes.  See MAXFILESIZE_LARGE below. */
1528   CURLOPT(CURLOPT_MAXFILESIZE, CURLOPTTYPE_LONG, 114),
1529 
1530   /* See the comment for INFILESIZE above, but in short, specifies
1531    * the size of the file being uploaded.  -1 means unknown.
1532    */
1533   CURLOPT(CURLOPT_INFILESIZE_LARGE, CURLOPTTYPE_OFF_T, 115),
1534 
1535   /* Sets the continuation offset.  There is also a CURLOPTTYPE_LONG version
1536    * of this; look above for RESUME_FROM.
1537    */
1538   CURLOPT(CURLOPT_RESUME_FROM_LARGE, CURLOPTTYPE_OFF_T, 116),
1539 
1540   /* Sets the maximum size of data that will be downloaded from
1541    * an HTTP or FTP server.  See MAXFILESIZE above for the LONG version.
1542    */
1543   CURLOPT(CURLOPT_MAXFILESIZE_LARGE, CURLOPTTYPE_OFF_T, 117),
1544 
1545   /* Set this option to the file name of your .netrc file you want libcurl
1546      to parse (using the CURLOPT_NETRC option). If not set, libcurl will do
1547      a poor attempt to find the user's home directory and check for a .netrc
1548      file in there. */
1549   CURLOPT(CURLOPT_NETRC_FILE, CURLOPTTYPE_STRINGPOINT, 118),
1550 
1551   /* Enable SSL/TLS for FTP, pick one of:
1552      CURLUSESSL_TRY     - try using SSL, proceed anyway otherwise
1553      CURLUSESSL_CONTROL - SSL for the control connection or fail
1554      CURLUSESSL_ALL     - SSL for all communication or fail
1555   */
1556   CURLOPT(CURLOPT_USE_SSL, CURLOPTTYPE_VALUES, 119),
1557 
1558   /* The _LARGE version of the standard POSTFIELDSIZE option */
1559   CURLOPT(CURLOPT_POSTFIELDSIZE_LARGE, CURLOPTTYPE_OFF_T, 120),
1560 
1561   /* Enable/disable the TCP Nagle algorithm */
1562   CURLOPT(CURLOPT_TCP_NODELAY, CURLOPTTYPE_LONG, 121),
1563 
1564   /* 122 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
1565   /* 123 OBSOLETE. Gone in 7.16.0 */
1566   /* 124 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
1567   /* 125 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
1568   /* 126 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
1569   /* 127 OBSOLETE. Gone in 7.16.0 */
1570   /* 128 OBSOLETE. Gone in 7.16.0 */
1571 
1572   /* When FTP over SSL/TLS is selected (with CURLOPT_USE_SSL), this option
1573      can be used to change libcurl's default action which is to first try
1574      "AUTH SSL" and then "AUTH TLS" in this order, and proceed when a OK
1575      response has been received.
1576 
1577      Available parameters are:
1578      CURLFTPAUTH_DEFAULT - let libcurl decide
1579      CURLFTPAUTH_SSL     - try "AUTH SSL" first, then TLS
1580      CURLFTPAUTH_TLS     - try "AUTH TLS" first, then SSL
1581   */
1582   CURLOPT(CURLOPT_FTPSSLAUTH, CURLOPTTYPE_VALUES, 129),
1583 
1584   CURLOPTDEPRECATED(CURLOPT_IOCTLFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 130,
1585                     7.18.0, "Use CURLOPT_SEEKFUNCTION"),
1586   CURLOPTDEPRECATED(CURLOPT_IOCTLDATA, CURLOPTTYPE_CBPOINT, 131,
1587                     7.18.0, "Use CURLOPT_SEEKDATA"),
1588 
1589   /* 132 OBSOLETE. Gone in 7.16.0 */
1590   /* 133 OBSOLETE. Gone in 7.16.0 */
1591 
1592   /* null-terminated string for pass on to the FTP server when asked for
1593      "account" info */
1594   CURLOPT(CURLOPT_FTP_ACCOUNT, CURLOPTTYPE_STRINGPOINT, 134),
1595 
1596   /* feed cookie into cookie engine */
1597   CURLOPT(CURLOPT_COOKIELIST, CURLOPTTYPE_STRINGPOINT, 135),
1598 
1599   /* ignore Content-Length */
1600   CURLOPT(CURLOPT_IGNORE_CONTENT_LENGTH, CURLOPTTYPE_LONG, 136),
1601 
1602   /* Set to non-zero to skip the IP address received in a 227 PASV FTP server
1603      response. Typically used for FTP-SSL purposes but is not restricted to
1604      that. libcurl will then instead use the same IP address it used for the
1605      control connection. */
1606   CURLOPT(CURLOPT_FTP_SKIP_PASV_IP, CURLOPTTYPE_LONG, 137),
1607 
1608   /* Select "file method" to use when doing FTP, see the curl_ftpmethod
1609      above. */
1610   CURLOPT(CURLOPT_FTP_FILEMETHOD, CURLOPTTYPE_VALUES, 138),
1611 
1612   /* Local port number to bind the socket to */
1613   CURLOPT(CURLOPT_LOCALPORT, CURLOPTTYPE_LONG, 139),
1614 
1615   /* Number of ports to try, including the first one set with LOCALPORT.
1616      Thus, setting it to 1 will make no additional attempts but the first.
1617   */
1618   CURLOPT(CURLOPT_LOCALPORTRANGE, CURLOPTTYPE_LONG, 140),
1619 
1620   /* no transfer, set up connection and let application use the socket by
1621      extracting it with CURLINFO_LASTSOCKET */
1622   CURLOPT(CURLOPT_CONNECT_ONLY, CURLOPTTYPE_LONG, 141),
1623 
1624   /* Function that will be called to convert from the
1625      network encoding (instead of using the iconv calls in libcurl) */
1626   CURLOPTDEPRECATED(CURLOPT_CONV_FROM_NETWORK_FUNCTION,
1627                     CURLOPTTYPE_FUNCTIONPOINT, 142,
1628                     7.82.0, "Serves no purpose anymore"),
1629 
1630   /* Function that will be called to convert to the
1631      network encoding (instead of using the iconv calls in libcurl) */
1632   CURLOPTDEPRECATED(CURLOPT_CONV_TO_NETWORK_FUNCTION,
1633                     CURLOPTTYPE_FUNCTIONPOINT, 143,
1634                     7.82.0, "Serves no purpose anymore"),
1635 
1636   /* Function that will be called to convert from UTF8
1637      (instead of using the iconv calls in libcurl)
1638      Note that this is used only for SSL certificate processing */
1639   CURLOPTDEPRECATED(CURLOPT_CONV_FROM_UTF8_FUNCTION,
1640                     CURLOPTTYPE_FUNCTIONPOINT, 144,
1641                     7.82.0, "Serves no purpose anymore"),
1642 
1643   /* if the connection proceeds too quickly then need to slow it down */
1644   /* limit-rate: maximum number of bytes per second to send or receive */
1645   CURLOPT(CURLOPT_MAX_SEND_SPEED_LARGE, CURLOPTTYPE_OFF_T, 145),
1646   CURLOPT(CURLOPT_MAX_RECV_SPEED_LARGE, CURLOPTTYPE_OFF_T, 146),
1647 
1648   /* Pointer to command string to send if USER/PASS fails. */
1649   CURLOPT(CURLOPT_FTP_ALTERNATIVE_TO_USER, CURLOPTTYPE_STRINGPOINT, 147),
1650 
1651   /* callback function for setting socket options */
1652   CURLOPT(CURLOPT_SOCKOPTFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 148),
1653   CURLOPT(CURLOPT_SOCKOPTDATA, CURLOPTTYPE_CBPOINT, 149),
1654 
1655   /* set to 0 to disable session ID reuse for this transfer, default is
1656      enabled (== 1) */
1657   CURLOPT(CURLOPT_SSL_SESSIONID_CACHE, CURLOPTTYPE_LONG, 150),
1658 
1659   /* allowed SSH authentication methods */
1660   CURLOPT(CURLOPT_SSH_AUTH_TYPES, CURLOPTTYPE_VALUES, 151),
1661 
1662   /* Used by scp/sftp to do public/private key authentication */
1663   CURLOPT(CURLOPT_SSH_PUBLIC_KEYFILE, CURLOPTTYPE_STRINGPOINT, 152),
1664   CURLOPT(CURLOPT_SSH_PRIVATE_KEYFILE, CURLOPTTYPE_STRINGPOINT, 153),
1665 
1666   /* Send CCC (Clear Command Channel) after authentication */
1667   CURLOPT(CURLOPT_FTP_SSL_CCC, CURLOPTTYPE_LONG, 154),
1668 
1669   /* Same as TIMEOUT and CONNECTTIMEOUT, but with ms resolution */
1670   CURLOPT(CURLOPT_TIMEOUT_MS, CURLOPTTYPE_LONG, 155),
1671   CURLOPT(CURLOPT_CONNECTTIMEOUT_MS, CURLOPTTYPE_LONG, 156),
1672 
1673   /* set to zero to disable the libcurl's decoding and thus pass the raw body
1674      data to the application even when it is encoded/compressed */
1675   CURLOPT(CURLOPT_HTTP_TRANSFER_DECODING, CURLOPTTYPE_LONG, 157),
1676   CURLOPT(CURLOPT_HTTP_CONTENT_DECODING, CURLOPTTYPE_LONG, 158),
1677 
1678   /* Permission used when creating new files and directories on the remote
1679      server for protocols that support it, SFTP/SCP/FILE */
1680   CURLOPT(CURLOPT_NEW_FILE_PERMS, CURLOPTTYPE_LONG, 159),
1681   CURLOPT(CURLOPT_NEW_DIRECTORY_PERMS, CURLOPTTYPE_LONG, 160),
1682 
1683   /* Set the behavior of POST when redirecting. Values must be set to one
1684      of CURL_REDIR* defines below. This used to be called CURLOPT_POST301 */
1685   CURLOPT(CURLOPT_POSTREDIR, CURLOPTTYPE_VALUES, 161),
1686 
1687   /* used by scp/sftp to verify the host's public key */
1688   CURLOPT(CURLOPT_SSH_HOST_PUBLIC_KEY_MD5, CURLOPTTYPE_STRINGPOINT, 162),
1689 
1690   /* Callback function for opening socket (instead of socket(2)). Optionally,
1691      callback is able change the address or refuse to connect returning
1692      CURL_SOCKET_BAD.  The callback should have type
1693      curl_opensocket_callback */
1694   CURLOPT(CURLOPT_OPENSOCKETFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 163),
1695   CURLOPT(CURLOPT_OPENSOCKETDATA, CURLOPTTYPE_CBPOINT, 164),
1696 
1697   /* POST volatile input fields. */
1698   CURLOPT(CURLOPT_COPYPOSTFIELDS, CURLOPTTYPE_OBJECTPOINT, 165),
1699 
1700   /* set transfer mode (;type=<a|i>) when doing FTP via an HTTP proxy */
1701   CURLOPT(CURLOPT_PROXY_TRANSFER_MODE, CURLOPTTYPE_LONG, 166),
1702 
1703   /* Callback function for seeking in the input stream */
1704   CURLOPT(CURLOPT_SEEKFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 167),
1705   CURLOPT(CURLOPT_SEEKDATA, CURLOPTTYPE_CBPOINT, 168),
1706 
1707   /* CRL file */
1708   CURLOPT(CURLOPT_CRLFILE, CURLOPTTYPE_STRINGPOINT, 169),
1709 
1710   /* Issuer certificate */
1711   CURLOPT(CURLOPT_ISSUERCERT, CURLOPTTYPE_STRINGPOINT, 170),
1712 
1713   /* (IPv6) Address scope */
1714   CURLOPT(CURLOPT_ADDRESS_SCOPE, CURLOPTTYPE_LONG, 171),
1715 
1716   /* Collect certificate chain info and allow it to get retrievable with
1717      CURLINFO_CERTINFO after the transfer is complete. */
1718   CURLOPT(CURLOPT_CERTINFO, CURLOPTTYPE_LONG, 172),
1719 
1720   /* "name" and "pwd" to use when fetching. */
1721   CURLOPT(CURLOPT_USERNAME, CURLOPTTYPE_STRINGPOINT, 173),
1722   CURLOPT(CURLOPT_PASSWORD, CURLOPTTYPE_STRINGPOINT, 174),
1723 
1724     /* "name" and "pwd" to use with Proxy when fetching. */
1725   CURLOPT(CURLOPT_PROXYUSERNAME, CURLOPTTYPE_STRINGPOINT, 175),
1726   CURLOPT(CURLOPT_PROXYPASSWORD, CURLOPTTYPE_STRINGPOINT, 176),
1727 
1728   /* Comma separated list of hostnames defining no-proxy zones. These should
1729      match both hostnames directly, and hostnames within a domain. For
1730      example, local.com will match local.com and www.local.com, but NOT
1731      notlocal.com or www.notlocal.com. For compatibility with other
1732      implementations of this, .local.com will be considered to be the same as
1733      local.com. A single * is the only valid wildcard, and effectively
1734      disables the use of proxy. */
1735   CURLOPT(CURLOPT_NOPROXY, CURLOPTTYPE_STRINGPOINT, 177),
1736 
1737   /* block size for TFTP transfers */
1738   CURLOPT(CURLOPT_TFTP_BLKSIZE, CURLOPTTYPE_LONG, 178),
1739 
1740   /* Socks Service */
1741   /* DEPRECATED, do not use! */
1742   CURLOPTDEPRECATED(CURLOPT_SOCKS5_GSSAPI_SERVICE,
1743                     CURLOPTTYPE_STRINGPOINT, 179,
1744                     7.49.0, "Use CURLOPT_PROXY_SERVICE_NAME"),
1745 
1746   /* Socks Service */
1747   CURLOPT(CURLOPT_SOCKS5_GSSAPI_NEC, CURLOPTTYPE_LONG, 180),
1748 
1749   /* set the bitmask for the protocols that are allowed to be used for the
1750      transfer, which thus helps the app which takes URLs from users or other
1751      external inputs and want to restrict what protocol(s) to deal
1752      with. Defaults to CURLPROTO_ALL. */
1753   CURLOPTDEPRECATED(CURLOPT_PROTOCOLS, CURLOPTTYPE_LONG, 181,
1754                     7.85.0, "Use CURLOPT_PROTOCOLS_STR"),
1755 
1756   /* set the bitmask for the protocols that libcurl is allowed to follow to,
1757      as a subset of the CURLOPT_PROTOCOLS ones. That means the protocol needs
1758      to be set in both bitmasks to be allowed to get redirected to. */
1759   CURLOPTDEPRECATED(CURLOPT_REDIR_PROTOCOLS, CURLOPTTYPE_LONG, 182,
1760                     7.85.0, "Use CURLOPT_REDIR_PROTOCOLS_STR"),
1761 
1762   /* set the SSH knownhost file name to use */
1763   CURLOPT(CURLOPT_SSH_KNOWNHOSTS, CURLOPTTYPE_STRINGPOINT, 183),
1764 
1765   /* set the SSH host key callback, must point to a curl_sshkeycallback
1766      function */
1767   CURLOPT(CURLOPT_SSH_KEYFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 184),
1768 
1769   /* set the SSH host key callback custom pointer */
1770   CURLOPT(CURLOPT_SSH_KEYDATA, CURLOPTTYPE_CBPOINT, 185),
1771 
1772   /* set the SMTP mail originator */
1773   CURLOPT(CURLOPT_MAIL_FROM, CURLOPTTYPE_STRINGPOINT, 186),
1774 
1775   /* set the list of SMTP mail receiver(s) */
1776   CURLOPT(CURLOPT_MAIL_RCPT, CURLOPTTYPE_SLISTPOINT, 187),
1777 
1778   /* FTP: send PRET before PASV */
1779   CURLOPT(CURLOPT_FTP_USE_PRET, CURLOPTTYPE_LONG, 188),
1780 
1781   /* RTSP request method (OPTIONS, SETUP, PLAY, etc...) */
1782   CURLOPT(CURLOPT_RTSP_REQUEST, CURLOPTTYPE_VALUES, 189),
1783 
1784   /* The RTSP session identifier */
1785   CURLOPT(CURLOPT_RTSP_SESSION_ID, CURLOPTTYPE_STRINGPOINT, 190),
1786 
1787   /* The RTSP stream URI */
1788   CURLOPT(CURLOPT_RTSP_STREAM_URI, CURLOPTTYPE_STRINGPOINT, 191),
1789 
1790   /* The Transport: header to use in RTSP requests */
1791   CURLOPT(CURLOPT_RTSP_TRANSPORT, CURLOPTTYPE_STRINGPOINT, 192),
1792 
1793   /* Manually initialize the client RTSP CSeq for this handle */
1794   CURLOPT(CURLOPT_RTSP_CLIENT_CSEQ, CURLOPTTYPE_LONG, 193),
1795 
1796   /* Manually initialize the server RTSP CSeq for this handle */
1797   CURLOPT(CURLOPT_RTSP_SERVER_CSEQ, CURLOPTTYPE_LONG, 194),
1798 
1799   /* The stream to pass to INTERLEAVEFUNCTION. */
1800   CURLOPT(CURLOPT_INTERLEAVEDATA, CURLOPTTYPE_CBPOINT, 195),
1801 
1802   /* Let the application define a custom write method for RTP data */
1803   CURLOPT(CURLOPT_INTERLEAVEFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 196),
1804 
1805   /* Turn on wildcard matching */
1806   CURLOPT(CURLOPT_WILDCARDMATCH, CURLOPTTYPE_LONG, 197),
1807 
1808   /* Directory matching callback called before downloading of an
1809      individual file (chunk) started */
1810   CURLOPT(CURLOPT_CHUNK_BGN_FUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 198),
1811 
1812   /* Directory matching callback called after the file (chunk)
1813      was downloaded, or skipped */
1814   CURLOPT(CURLOPT_CHUNK_END_FUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 199),
1815 
1816   /* Change match (fnmatch-like) callback for wildcard matching */
1817   CURLOPT(CURLOPT_FNMATCH_FUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 200),
1818 
1819   /* Let the application define custom chunk data pointer */
1820   CURLOPT(CURLOPT_CHUNK_DATA, CURLOPTTYPE_CBPOINT, 201),
1821 
1822   /* FNMATCH_FUNCTION user pointer */
1823   CURLOPT(CURLOPT_FNMATCH_DATA, CURLOPTTYPE_CBPOINT, 202),
1824 
1825   /* send linked-list of name:port:address sets */
1826   CURLOPT(CURLOPT_RESOLVE, CURLOPTTYPE_SLISTPOINT, 203),
1827 
1828   /* Set a username for authenticated TLS */
1829   CURLOPT(CURLOPT_TLSAUTH_USERNAME, CURLOPTTYPE_STRINGPOINT, 204),
1830 
1831   /* Set a password for authenticated TLS */
1832   CURLOPT(CURLOPT_TLSAUTH_PASSWORD, CURLOPTTYPE_STRINGPOINT, 205),
1833 
1834   /* Set authentication type for authenticated TLS */
1835   CURLOPT(CURLOPT_TLSAUTH_TYPE, CURLOPTTYPE_STRINGPOINT, 206),
1836 
1837   /* Set to 1 to enable the "TE:" header in HTTP requests to ask for
1838      compressed transfer-encoded responses. Set to 0 to disable the use of TE:
1839      in outgoing requests. The current default is 0, but it might change in a
1840      future libcurl release.
1841 
1842      libcurl will ask for the compressed methods it knows of, and if that
1843      isn't any, it will not ask for transfer-encoding at all even if this
1844      option is set to 1.
1845 
1846   */
1847   CURLOPT(CURLOPT_TRANSFER_ENCODING, CURLOPTTYPE_LONG, 207),
1848 
1849   /* Callback function for closing socket (instead of close(2)). The callback
1850      should have type curl_closesocket_callback */
1851   CURLOPT(CURLOPT_CLOSESOCKETFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 208),
1852   CURLOPT(CURLOPT_CLOSESOCKETDATA, CURLOPTTYPE_CBPOINT, 209),
1853 
1854   /* allow GSSAPI credential delegation */
1855   CURLOPT(CURLOPT_GSSAPI_DELEGATION, CURLOPTTYPE_VALUES, 210),
1856 
1857   /* Set the name servers to use for DNS resolution */
1858   CURLOPT(CURLOPT_DNS_SERVERS, CURLOPTTYPE_STRINGPOINT, 211),
1859 
1860   /* Time-out accept operations (currently for FTP only) after this amount
1861      of milliseconds. */
1862   CURLOPT(CURLOPT_ACCEPTTIMEOUT_MS, CURLOPTTYPE_LONG, 212),
1863 
1864   /* Set TCP keepalive */
1865   CURLOPT(CURLOPT_TCP_KEEPALIVE, CURLOPTTYPE_LONG, 213),
1866 
1867   /* non-universal keepalive knobs (Linux, AIX, HP-UX, more) */
1868   CURLOPT(CURLOPT_TCP_KEEPIDLE, CURLOPTTYPE_LONG, 214),
1869   CURLOPT(CURLOPT_TCP_KEEPINTVL, CURLOPTTYPE_LONG, 215),
1870 
1871   /* Enable/disable specific SSL features with a bitmask, see CURLSSLOPT_* */
1872   CURLOPT(CURLOPT_SSL_OPTIONS, CURLOPTTYPE_VALUES, 216),
1873 
1874   /* Set the SMTP auth originator */
1875   CURLOPT(CURLOPT_MAIL_AUTH, CURLOPTTYPE_STRINGPOINT, 217),
1876 
1877   /* Enable/disable SASL initial response */
1878   CURLOPT(CURLOPT_SASL_IR, CURLOPTTYPE_LONG, 218),
1879 
1880   /* Function that will be called instead of the internal progress display
1881    * function. This function should be defined as the curl_xferinfo_callback
1882    * prototype defines. (Deprecates CURLOPT_PROGRESSFUNCTION) */
1883   CURLOPT(CURLOPT_XFERINFOFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 219),
1884 
1885   /* The XOAUTH2 bearer token */
1886   CURLOPT(CURLOPT_XOAUTH2_BEARER, CURLOPTTYPE_STRINGPOINT, 220),
1887 
1888   /* Set the interface string to use as outgoing network
1889    * interface for DNS requests.
1890    * Only supported by the c-ares DNS backend */
1891   CURLOPT(CURLOPT_DNS_INTERFACE, CURLOPTTYPE_STRINGPOINT, 221),
1892 
1893   /* Set the local IPv4 address to use for outgoing DNS requests.
1894    * Only supported by the c-ares DNS backend */
1895   CURLOPT(CURLOPT_DNS_LOCAL_IP4, CURLOPTTYPE_STRINGPOINT, 222),
1896 
1897   /* Set the local IPv6 address to use for outgoing DNS requests.
1898    * Only supported by the c-ares DNS backend */
1899   CURLOPT(CURLOPT_DNS_LOCAL_IP6, CURLOPTTYPE_STRINGPOINT, 223),
1900 
1901   /* Set authentication options directly */
1902   CURLOPT(CURLOPT_LOGIN_OPTIONS, CURLOPTTYPE_STRINGPOINT, 224),
1903 
1904   /* Enable/disable TLS NPN extension (http2 over ssl might fail without) */
1905   CURLOPTDEPRECATED(CURLOPT_SSL_ENABLE_NPN, CURLOPTTYPE_LONG, 225,
1906                     7.86.0, "Has no function"),
1907 
1908   /* Enable/disable TLS ALPN extension (http2 over ssl might fail without) */
1909   CURLOPT(CURLOPT_SSL_ENABLE_ALPN, CURLOPTTYPE_LONG, 226),
1910 
1911   /* Time to wait for a response to an HTTP request containing an
1912    * Expect: 100-continue header before sending the data anyway. */
1913   CURLOPT(CURLOPT_EXPECT_100_TIMEOUT_MS, CURLOPTTYPE_LONG, 227),
1914 
1915   /* This points to a linked list of headers used for proxy requests only,
1916      struct curl_slist kind */
1917   CURLOPT(CURLOPT_PROXYHEADER, CURLOPTTYPE_SLISTPOINT, 228),
1918 
1919   /* Pass in a bitmask of "header options" */
1920   CURLOPT(CURLOPT_HEADEROPT, CURLOPTTYPE_VALUES, 229),
1921 
1922   /* The public key in DER form used to validate the peer public key
1923      this option is used only if SSL_VERIFYPEER is true */
1924   CURLOPT(CURLOPT_PINNEDPUBLICKEY, CURLOPTTYPE_STRINGPOINT, 230),
1925 
1926   /* Path to Unix domain socket */
1927   CURLOPT(CURLOPT_UNIX_SOCKET_PATH, CURLOPTTYPE_STRINGPOINT, 231),
1928 
1929   /* Set if we should verify the certificate status. */
1930   CURLOPT(CURLOPT_SSL_VERIFYSTATUS, CURLOPTTYPE_LONG, 232),
1931 
1932   /* Set if we should enable TLS false start. */
1933   CURLOPT(CURLOPT_SSL_FALSESTART, CURLOPTTYPE_LONG, 233),
1934 
1935   /* Do not squash dot-dot sequences */
1936   CURLOPT(CURLOPT_PATH_AS_IS, CURLOPTTYPE_LONG, 234),
1937 
1938   /* Proxy Service Name */
1939   CURLOPT(CURLOPT_PROXY_SERVICE_NAME, CURLOPTTYPE_STRINGPOINT, 235),
1940 
1941   /* Service Name */
1942   CURLOPT(CURLOPT_SERVICE_NAME, CURLOPTTYPE_STRINGPOINT, 236),
1943 
1944   /* Wait/don't wait for pipe/mutex to clarify */
1945   CURLOPT(CURLOPT_PIPEWAIT, CURLOPTTYPE_LONG, 237),
1946 
1947   /* Set the protocol used when curl is given a URL without a protocol */
1948   CURLOPT(CURLOPT_DEFAULT_PROTOCOL, CURLOPTTYPE_STRINGPOINT, 238),
1949 
1950   /* Set stream weight, 1 - 256 (default is 16) */
1951   CURLOPT(CURLOPT_STREAM_WEIGHT, CURLOPTTYPE_LONG, 239),
1952 
1953   /* Set stream dependency on another CURL handle */
1954   CURLOPT(CURLOPT_STREAM_DEPENDS, CURLOPTTYPE_OBJECTPOINT, 240),
1955 
1956   /* Set E-xclusive stream dependency on another CURL handle */
1957   CURLOPT(CURLOPT_STREAM_DEPENDS_E, CURLOPTTYPE_OBJECTPOINT, 241),
1958 
1959   /* Do not send any tftp option requests to the server */
1960   CURLOPT(CURLOPT_TFTP_NO_OPTIONS, CURLOPTTYPE_LONG, 242),
1961 
1962   /* Linked-list of host:port:connect-to-host:connect-to-port,
1963      overrides the URL's host:port (only for the network layer) */
1964   CURLOPT(CURLOPT_CONNECT_TO, CURLOPTTYPE_SLISTPOINT, 243),
1965 
1966   /* Set TCP Fast Open */
1967   CURLOPT(CURLOPT_TCP_FASTOPEN, CURLOPTTYPE_LONG, 244),
1968 
1969   /* Continue to send data if the server responds early with an
1970    * HTTP status code >= 300 */
1971   CURLOPT(CURLOPT_KEEP_SENDING_ON_ERROR, CURLOPTTYPE_LONG, 245),
1972 
1973   /* The CApath or CAfile used to validate the proxy certificate
1974      this option is used only if PROXY_SSL_VERIFYPEER is true */
1975   CURLOPT(CURLOPT_PROXY_CAINFO, CURLOPTTYPE_STRINGPOINT, 246),
1976 
1977   /* The CApath directory used to validate the proxy certificate
1978      this option is used only if PROXY_SSL_VERIFYPEER is true */
1979   CURLOPT(CURLOPT_PROXY_CAPATH, CURLOPTTYPE_STRINGPOINT, 247),
1980 
1981   /* Set if we should verify the proxy in ssl handshake,
1982      set 1 to verify. */
1983   CURLOPT(CURLOPT_PROXY_SSL_VERIFYPEER, CURLOPTTYPE_LONG, 248),
1984 
1985   /* Set if we should verify the Common name from the proxy certificate in ssl
1986    * handshake, set 1 to check existence, 2 to ensure that it matches
1987    * the provided hostname. */
1988   CURLOPT(CURLOPT_PROXY_SSL_VERIFYHOST, CURLOPTTYPE_LONG, 249),
1989 
1990   /* What version to specifically try to use for proxy.
1991      See CURL_SSLVERSION defines below. */
1992   CURLOPT(CURLOPT_PROXY_SSLVERSION, CURLOPTTYPE_VALUES, 250),
1993 
1994   /* Set a username for authenticated TLS for proxy */
1995   CURLOPT(CURLOPT_PROXY_TLSAUTH_USERNAME, CURLOPTTYPE_STRINGPOINT, 251),
1996 
1997   /* Set a password for authenticated TLS for proxy */
1998   CURLOPT(CURLOPT_PROXY_TLSAUTH_PASSWORD, CURLOPTTYPE_STRINGPOINT, 252),
1999 
2000   /* Set authentication type for authenticated TLS for proxy */
2001   CURLOPT(CURLOPT_PROXY_TLSAUTH_TYPE, CURLOPTTYPE_STRINGPOINT, 253),
2002 
2003   /* name of the file keeping your private SSL-certificate for proxy */
2004   CURLOPT(CURLOPT_PROXY_SSLCERT, CURLOPTTYPE_STRINGPOINT, 254),
2005 
2006   /* type of the file keeping your SSL-certificate ("DER", "PEM", "ENG") for
2007      proxy */
2008   CURLOPT(CURLOPT_PROXY_SSLCERTTYPE, CURLOPTTYPE_STRINGPOINT, 255),
2009 
2010   /* name of the file keeping your private SSL-key for proxy */
2011   CURLOPT(CURLOPT_PROXY_SSLKEY, CURLOPTTYPE_STRINGPOINT, 256),
2012 
2013   /* type of the file keeping your private SSL-key ("DER", "PEM", "ENG") for
2014      proxy */
2015   CURLOPT(CURLOPT_PROXY_SSLKEYTYPE, CURLOPTTYPE_STRINGPOINT, 257),
2016 
2017   /* password for the SSL private key for proxy */
2018   CURLOPT(CURLOPT_PROXY_KEYPASSWD, CURLOPTTYPE_STRINGPOINT, 258),
2019 
2020   /* Specify which SSL ciphers to use for proxy */
2021   CURLOPT(CURLOPT_PROXY_SSL_CIPHER_LIST, CURLOPTTYPE_STRINGPOINT, 259),
2022 
2023   /* CRL file for proxy */
2024   CURLOPT(CURLOPT_PROXY_CRLFILE, CURLOPTTYPE_STRINGPOINT, 260),
2025 
2026   /* Enable/disable specific SSL features with a bitmask for proxy, see
2027      CURLSSLOPT_* */
2028   CURLOPT(CURLOPT_PROXY_SSL_OPTIONS, CURLOPTTYPE_LONG, 261),
2029 
2030   /* Name of pre proxy to use. */
2031   CURLOPT(CURLOPT_PRE_PROXY, CURLOPTTYPE_STRINGPOINT, 262),
2032 
2033   /* The public key in DER form used to validate the proxy public key
2034      this option is used only if PROXY_SSL_VERIFYPEER is true */
2035   CURLOPT(CURLOPT_PROXY_PINNEDPUBLICKEY, CURLOPTTYPE_STRINGPOINT, 263),
2036 
2037   /* Path to an abstract Unix domain socket */
2038   CURLOPT(CURLOPT_ABSTRACT_UNIX_SOCKET, CURLOPTTYPE_STRINGPOINT, 264),
2039 
2040   /* Suppress proxy CONNECT response headers from user callbacks */
2041   CURLOPT(CURLOPT_SUPPRESS_CONNECT_HEADERS, CURLOPTTYPE_LONG, 265),
2042 
2043   /* The request target, instead of extracted from the URL */
2044   CURLOPT(CURLOPT_REQUEST_TARGET, CURLOPTTYPE_STRINGPOINT, 266),
2045 
2046   /* bitmask of allowed auth methods for connections to SOCKS5 proxies */
2047   CURLOPT(CURLOPT_SOCKS5_AUTH, CURLOPTTYPE_LONG, 267),
2048 
2049   /* Enable/disable SSH compression */
2050   CURLOPT(CURLOPT_SSH_COMPRESSION, CURLOPTTYPE_LONG, 268),
2051 
2052   /* Post MIME data. */
2053   CURLOPT(CURLOPT_MIMEPOST, CURLOPTTYPE_OBJECTPOINT, 269),
2054 
2055   /* Time to use with the CURLOPT_TIMECONDITION. Specified in number of
2056      seconds since 1 Jan 1970. */
2057   CURLOPT(CURLOPT_TIMEVALUE_LARGE, CURLOPTTYPE_OFF_T, 270),
2058 
2059   /* Head start in milliseconds to give happy eyeballs. */
2060   CURLOPT(CURLOPT_HAPPY_EYEBALLS_TIMEOUT_MS, CURLOPTTYPE_LONG, 271),
2061 
2062   /* Function that will be called before a resolver request is made */
2063   CURLOPT(CURLOPT_RESOLVER_START_FUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 272),
2064 
2065   /* User data to pass to the resolver start callback. */
2066   CURLOPT(CURLOPT_RESOLVER_START_DATA, CURLOPTTYPE_CBPOINT, 273),
2067 
2068   /* send HAProxy PROXY protocol header? */
2069   CURLOPT(CURLOPT_HAPROXYPROTOCOL, CURLOPTTYPE_LONG, 274),
2070 
2071   /* shuffle addresses before use when DNS returns multiple */
2072   CURLOPT(CURLOPT_DNS_SHUFFLE_ADDRESSES, CURLOPTTYPE_LONG, 275),
2073 
2074   /* Specify which TLS 1.3 ciphers suites to use */
2075   CURLOPT(CURLOPT_TLS13_CIPHERS, CURLOPTTYPE_STRINGPOINT, 276),
2076   CURLOPT(CURLOPT_PROXY_TLS13_CIPHERS, CURLOPTTYPE_STRINGPOINT, 277),
2077 
2078   /* Disallow specifying username/login in URL. */
2079   CURLOPT(CURLOPT_DISALLOW_USERNAME_IN_URL, CURLOPTTYPE_LONG, 278),
2080 
2081   /* DNS-over-HTTPS URL */
2082   CURLOPT(CURLOPT_DOH_URL, CURLOPTTYPE_STRINGPOINT, 279),
2083 
2084   /* Preferred buffer size to use for uploads */
2085   CURLOPT(CURLOPT_UPLOAD_BUFFERSIZE, CURLOPTTYPE_LONG, 280),
2086 
2087   /* Time in ms between connection upkeep calls for long-lived connections. */
2088   CURLOPT(CURLOPT_UPKEEP_INTERVAL_MS, CURLOPTTYPE_LONG, 281),
2089 
2090   /* Specify URL using CURL URL API. */
2091   CURLOPT(CURLOPT_CURLU, CURLOPTTYPE_OBJECTPOINT, 282),
2092 
2093   /* add trailing data just after no more data is available */
2094   CURLOPT(CURLOPT_TRAILERFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 283),
2095 
2096   /* pointer to be passed to HTTP_TRAILER_FUNCTION */
2097   CURLOPT(CURLOPT_TRAILERDATA, CURLOPTTYPE_CBPOINT, 284),
2098 
2099   /* set this to 1L to allow HTTP/0.9 responses or 0L to disallow */
2100   CURLOPT(CURLOPT_HTTP09_ALLOWED, CURLOPTTYPE_LONG, 285),
2101 
2102   /* alt-svc control bitmask */
2103   CURLOPT(CURLOPT_ALTSVC_CTRL, CURLOPTTYPE_LONG, 286),
2104 
2105   /* alt-svc cache file name to possibly read from/write to */
2106   CURLOPT(CURLOPT_ALTSVC, CURLOPTTYPE_STRINGPOINT, 287),
2107 
2108   /* maximum age (idle time) of a connection to consider it for reuse
2109    * (in seconds) */
2110   CURLOPT(CURLOPT_MAXAGE_CONN, CURLOPTTYPE_LONG, 288),
2111 
2112   /* SASL authorization identity */
2113   CURLOPT(CURLOPT_SASL_AUTHZID, CURLOPTTYPE_STRINGPOINT, 289),
2114 
2115   /* allow RCPT TO command to fail for some recipients */
2116   CURLOPT(CURLOPT_MAIL_RCPT_ALLOWFAILS, CURLOPTTYPE_LONG, 290),
2117 
2118   /* the private SSL-certificate as a "blob" */
2119   CURLOPT(CURLOPT_SSLCERT_BLOB, CURLOPTTYPE_BLOB, 291),
2120   CURLOPT(CURLOPT_SSLKEY_BLOB, CURLOPTTYPE_BLOB, 292),
2121   CURLOPT(CURLOPT_PROXY_SSLCERT_BLOB, CURLOPTTYPE_BLOB, 293),
2122   CURLOPT(CURLOPT_PROXY_SSLKEY_BLOB, CURLOPTTYPE_BLOB, 294),
2123   CURLOPT(CURLOPT_ISSUERCERT_BLOB, CURLOPTTYPE_BLOB, 295),
2124 
2125   /* Issuer certificate for proxy */
2126   CURLOPT(CURLOPT_PROXY_ISSUERCERT, CURLOPTTYPE_STRINGPOINT, 296),
2127   CURLOPT(CURLOPT_PROXY_ISSUERCERT_BLOB, CURLOPTTYPE_BLOB, 297),
2128 
2129   /* the EC curves requested by the TLS client (RFC 8422, 5.1);
2130    * OpenSSL support via 'set_groups'/'set_curves':
2131    * https://www.openssl.org/docs/manmaster/man3/SSL_CTX_set1_groups.html
2132    */
2133   CURLOPT(CURLOPT_SSL_EC_CURVES, CURLOPTTYPE_STRINGPOINT, 298),
2134 
2135   /* HSTS bitmask */
2136   CURLOPT(CURLOPT_HSTS_CTRL, CURLOPTTYPE_LONG, 299),
2137   /* HSTS file name */
2138   CURLOPT(CURLOPT_HSTS, CURLOPTTYPE_STRINGPOINT, 300),
2139 
2140   /* HSTS read callback */
2141   CURLOPT(CURLOPT_HSTSREADFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 301),
2142   CURLOPT(CURLOPT_HSTSREADDATA, CURLOPTTYPE_CBPOINT, 302),
2143 
2144   /* HSTS write callback */
2145   CURLOPT(CURLOPT_HSTSWRITEFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 303),
2146   CURLOPT(CURLOPT_HSTSWRITEDATA, CURLOPTTYPE_CBPOINT, 304),
2147 
2148   /* Parameters for V4 signature */
2149   CURLOPT(CURLOPT_AWS_SIGV4, CURLOPTTYPE_STRINGPOINT, 305),
2150 
2151   /* Same as CURLOPT_SSL_VERIFYPEER but for DoH (DNS-over-HTTPS) servers. */
2152   CURLOPT(CURLOPT_DOH_SSL_VERIFYPEER, CURLOPTTYPE_LONG, 306),
2153 
2154   /* Same as CURLOPT_SSL_VERIFYHOST but for DoH (DNS-over-HTTPS) servers. */
2155   CURLOPT(CURLOPT_DOH_SSL_VERIFYHOST, CURLOPTTYPE_LONG, 307),
2156 
2157   /* Same as CURLOPT_SSL_VERIFYSTATUS but for DoH (DNS-over-HTTPS) servers. */
2158   CURLOPT(CURLOPT_DOH_SSL_VERIFYSTATUS, CURLOPTTYPE_LONG, 308),
2159 
2160   /* The CA certificates as "blob" used to validate the peer certificate
2161      this option is used only if SSL_VERIFYPEER is true */
2162   CURLOPT(CURLOPT_CAINFO_BLOB, CURLOPTTYPE_BLOB, 309),
2163 
2164   /* The CA certificates as "blob" used to validate the proxy certificate
2165      this option is used only if PROXY_SSL_VERIFYPEER is true */
2166   CURLOPT(CURLOPT_PROXY_CAINFO_BLOB, CURLOPTTYPE_BLOB, 310),
2167 
2168   /* used by scp/sftp to verify the host's public key */
2169   CURLOPT(CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256, CURLOPTTYPE_STRINGPOINT, 311),
2170 
2171   /* Function that will be called immediately before the initial request
2172      is made on a connection (after any protocol negotiation step).  */
2173   CURLOPT(CURLOPT_PREREQFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 312),
2174 
2175   /* Data passed to the CURLOPT_PREREQFUNCTION callback */
2176   CURLOPT(CURLOPT_PREREQDATA, CURLOPTTYPE_CBPOINT, 313),
2177 
2178   /* maximum age (since creation) of a connection to consider it for reuse
2179    * (in seconds) */
2180   CURLOPT(CURLOPT_MAXLIFETIME_CONN, CURLOPTTYPE_LONG, 314),
2181 
2182   /* Set MIME option flags. */
2183   CURLOPT(CURLOPT_MIME_OPTIONS, CURLOPTTYPE_LONG, 315),
2184 
2185   /* set the SSH host key callback, must point to a curl_sshkeycallback
2186      function */
2187   CURLOPT(CURLOPT_SSH_HOSTKEYFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 316),
2188 
2189   /* set the SSH host key callback custom pointer */
2190   CURLOPT(CURLOPT_SSH_HOSTKEYDATA, CURLOPTTYPE_CBPOINT, 317),
2191 
2192   /* specify which protocols that are allowed to be used for the transfer,
2193      which thus helps the app which takes URLs from users or other external
2194      inputs and want to restrict what protocol(s) to deal with. Defaults to
2195      all built-in protocols. */
2196   CURLOPT(CURLOPT_PROTOCOLS_STR, CURLOPTTYPE_STRINGPOINT, 318),
2197 
2198   /* specify which protocols that libcurl is allowed to follow directs to */
2199   CURLOPT(CURLOPT_REDIR_PROTOCOLS_STR, CURLOPTTYPE_STRINGPOINT, 319),
2200 
2201   /* websockets options */
2202   CURLOPT(CURLOPT_WS_OPTIONS, CURLOPTTYPE_LONG, 320),
2203 
2204   /* CA cache timeout */
2205   CURLOPT(CURLOPT_CA_CACHE_TIMEOUT, CURLOPTTYPE_LONG, 321),
2206 
2207   /* Can leak things, gonna exit() soon */
2208   CURLOPT(CURLOPT_QUICK_EXIT, CURLOPTTYPE_LONG, 322),
2209 
2210   /* set a specific client IP for HAProxy PROXY protocol header? */
2211   CURLOPT(CURLOPT_HAPROXY_CLIENT_IP, CURLOPTTYPE_STRINGPOINT, 323),
2212 
2213   CURLOPT_LASTENTRY /* the last unused */
2214 } CURLoption;
2215 
2216 #ifndef CURL_NO_OLDIES /* define this to test if your app builds with all
2217                           the obsolete stuff removed! */
2218 
2219 /* Backwards compatibility with older names */
2220 /* These are scheduled to disappear by 2011 */
2221 
2222 /* This was added in version 7.19.1 */
2223 #define CURLOPT_POST301 CURLOPT_POSTREDIR
2224 
2225 /* These are scheduled to disappear by 2009 */
2226 
2227 /* The following were added in 7.17.0 */
2228 #define CURLOPT_SSLKEYPASSWD CURLOPT_KEYPASSWD
2229 #define CURLOPT_FTPAPPEND CURLOPT_APPEND
2230 #define CURLOPT_FTPLISTONLY CURLOPT_DIRLISTONLY
2231 #define CURLOPT_FTP_SSL CURLOPT_USE_SSL
2232 
2233 /* The following were added earlier */
2234 
2235 #define CURLOPT_SSLCERTPASSWD CURLOPT_KEYPASSWD
2236 #define CURLOPT_KRB4LEVEL CURLOPT_KRBLEVEL
2237 
2238 /* */
2239 #define CURLOPT_FTP_RESPONSE_TIMEOUT CURLOPT_SERVER_RESPONSE_TIMEOUT
2240 
2241 /* Added in 8.2.0 */
2242 #define CURLOPT_MAIL_RCPT_ALLLOWFAILS CURLOPT_MAIL_RCPT_ALLOWFAILS
2243 
2244 #else
2245 /* This is set if CURL_NO_OLDIES is defined at compile-time */
2246 #undef CURLOPT_DNS_USE_GLOBAL_CACHE /* soon obsolete */
2247 #endif
2248 
2249 
2250   /* Below here follows defines for the CURLOPT_IPRESOLVE option. If a host
2251      name resolves addresses using more than one IP protocol version, this
2252      option might be handy to force libcurl to use a specific IP version. */
2253 #define CURL_IPRESOLVE_WHATEVER 0 /* default, uses addresses to all IP
2254                                      versions that your system allows */
2255 #define CURL_IPRESOLVE_V4       1 /* uses only IPv4 addresses/connections */
2256 #define CURL_IPRESOLVE_V6       2 /* uses only IPv6 addresses/connections */
2257 
2258   /* Convenient "aliases" */
2259 #define CURLOPT_RTSPHEADER CURLOPT_HTTPHEADER
2260 
2261   /* These enums are for use with the CURLOPT_HTTP_VERSION option. */
2262 enum {
2263   CURL_HTTP_VERSION_NONE, /* setting this means we don't care, and that we'd
2264                              like the library to choose the best possible
2265                              for us! */
2266   CURL_HTTP_VERSION_1_0,  /* please use HTTP 1.0 in the request */
2267   CURL_HTTP_VERSION_1_1,  /* please use HTTP 1.1 in the request */
2268   CURL_HTTP_VERSION_2_0,  /* please use HTTP 2 in the request */
2269   CURL_HTTP_VERSION_2TLS, /* use version 2 for HTTPS, version 1.1 for HTTP */
2270   CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE,  /* please use HTTP 2 without HTTP/1.1
2271                                            Upgrade */
2272   CURL_HTTP_VERSION_3 = 30, /* Use HTTP/3, fallback to HTTP/2 or HTTP/1 if
2273                                needed. For HTTPS only. For HTTP, this option
2274                                makes libcurl return error. */
2275   CURL_HTTP_VERSION_3ONLY = 31, /* Use HTTP/3 without fallback. For HTTPS
2276                                    only. For HTTP, this makes libcurl
2277                                    return error. */
2278 
2279   CURL_HTTP_VERSION_LAST /* *ILLEGAL* http version */
2280 };
2281 
2282 /* Convenience definition simple because the name of the version is HTTP/2 and
2283    not 2.0. The 2_0 version of the enum name was set while the version was
2284    still planned to be 2.0 and we stick to it for compatibility. */
2285 #define CURL_HTTP_VERSION_2 CURL_HTTP_VERSION_2_0
2286 
2287 /*
2288  * Public API enums for RTSP requests
2289  */
2290 enum {
2291     CURL_RTSPREQ_NONE, /* first in list */
2292     CURL_RTSPREQ_OPTIONS,
2293     CURL_RTSPREQ_DESCRIBE,
2294     CURL_RTSPREQ_ANNOUNCE,
2295     CURL_RTSPREQ_SETUP,
2296     CURL_RTSPREQ_PLAY,
2297     CURL_RTSPREQ_PAUSE,
2298     CURL_RTSPREQ_TEARDOWN,
2299     CURL_RTSPREQ_GET_PARAMETER,
2300     CURL_RTSPREQ_SET_PARAMETER,
2301     CURL_RTSPREQ_RECORD,
2302     CURL_RTSPREQ_RECEIVE,
2303     CURL_RTSPREQ_LAST /* last in list */
2304 };
2305 
2306   /* These enums are for use with the CURLOPT_NETRC option. */
2307 enum CURL_NETRC_OPTION {
2308   CURL_NETRC_IGNORED,     /* The .netrc will never be read.
2309                            * This is the default. */
2310   CURL_NETRC_OPTIONAL,    /* A user:password in the URL will be preferred
2311                            * to one in the .netrc. */
2312   CURL_NETRC_REQUIRED,    /* A user:password in the URL will be ignored.
2313                            * Unless one is set programmatically, the .netrc
2314                            * will be queried. */
2315   CURL_NETRC_LAST
2316 };
2317 
2318 enum {
2319   CURL_SSLVERSION_DEFAULT,
2320   CURL_SSLVERSION_TLSv1, /* TLS 1.x */
2321   CURL_SSLVERSION_SSLv2,
2322   CURL_SSLVERSION_SSLv3,
2323   CURL_SSLVERSION_TLSv1_0,
2324   CURL_SSLVERSION_TLSv1_1,
2325   CURL_SSLVERSION_TLSv1_2,
2326   CURL_SSLVERSION_TLSv1_3,
2327 
2328   CURL_SSLVERSION_LAST /* never use, keep last */
2329 };
2330 
2331 enum {
2332   CURL_SSLVERSION_MAX_NONE =     0,
2333   CURL_SSLVERSION_MAX_DEFAULT =  (CURL_SSLVERSION_TLSv1   << 16),
2334   CURL_SSLVERSION_MAX_TLSv1_0 =  (CURL_SSLVERSION_TLSv1_0 << 16),
2335   CURL_SSLVERSION_MAX_TLSv1_1 =  (CURL_SSLVERSION_TLSv1_1 << 16),
2336   CURL_SSLVERSION_MAX_TLSv1_2 =  (CURL_SSLVERSION_TLSv1_2 << 16),
2337   CURL_SSLVERSION_MAX_TLSv1_3 =  (CURL_SSLVERSION_TLSv1_3 << 16),
2338 
2339   /* never use, keep last */
2340   CURL_SSLVERSION_MAX_LAST =     (CURL_SSLVERSION_LAST    << 16)
2341 };
2342 
2343 enum CURL_TLSAUTH {
2344   CURL_TLSAUTH_NONE,
2345   CURL_TLSAUTH_SRP,
2346   CURL_TLSAUTH_LAST /* never use, keep last */
2347 };
2348 
2349 /* symbols to use with CURLOPT_POSTREDIR.
2350    CURL_REDIR_POST_301, CURL_REDIR_POST_302 and CURL_REDIR_POST_303
2351    can be bitwise ORed so that CURL_REDIR_POST_301 | CURL_REDIR_POST_302
2352    | CURL_REDIR_POST_303 == CURL_REDIR_POST_ALL */
2353 
2354 #define CURL_REDIR_GET_ALL  0
2355 #define CURL_REDIR_POST_301 1
2356 #define CURL_REDIR_POST_302 2
2357 #define CURL_REDIR_POST_303 4
2358 #define CURL_REDIR_POST_ALL \
2359     (CURL_REDIR_POST_301|CURL_REDIR_POST_302|CURL_REDIR_POST_303)
2360 
2361 typedef enum {
2362   CURL_TIMECOND_NONE,
2363 
2364   CURL_TIMECOND_IFMODSINCE,
2365   CURL_TIMECOND_IFUNMODSINCE,
2366   CURL_TIMECOND_LASTMOD,
2367 
2368   CURL_TIMECOND_LAST
2369 } curl_TimeCond;
2370 
2371 /* Special size_t value signaling a null-terminated string. */
2372 #define CURL_ZERO_TERMINATED ((size_t) -1)
2373 
2374 /* curl_strequal() and curl_strnequal() are subject for removal in a future
2375    release */
2376 CURL_EXTERN int curl_strequal(const char *s1, const char *s2);
2377 CURL_EXTERN int curl_strnequal(const char *s1, const char *s2, size_t n);
2378 
2379 /* Mime/form handling support. */
2380 typedef struct curl_mime      curl_mime;      /* Mime context. */
2381 typedef struct curl_mimepart  curl_mimepart;  /* Mime part context. */
2382 
2383 /* CURLMIMEOPT_ defines are for the CURLOPT_MIME_OPTIONS option. */
2384 #define CURLMIMEOPT_FORMESCAPE  (1<<0) /* Use backslash-escaping for forms. */
2385 
2386 /*
2387  * NAME curl_mime_init()
2388  *
2389  * DESCRIPTION
2390  *
2391  * Create a mime context and return its handle. The easy parameter is the
2392  * target handle.
2393  */
2394 CURL_EXTERN curl_mime *curl_mime_init(CURL *easy);
2395 
2396 /*
2397  * NAME curl_mime_free()
2398  *
2399  * DESCRIPTION
2400  *
2401  * release a mime handle and its substructures.
2402  */
2403 CURL_EXTERN void curl_mime_free(curl_mime *mime);
2404 
2405 /*
2406  * NAME curl_mime_addpart()
2407  *
2408  * DESCRIPTION
2409  *
2410  * Append a new empty part to the given mime context and return a handle to
2411  * the created part.
2412  */
2413 CURL_EXTERN curl_mimepart *curl_mime_addpart(curl_mime *mime);
2414 
2415 /*
2416  * NAME curl_mime_name()
2417  *
2418  * DESCRIPTION
2419  *
2420  * Set mime/form part name.
2421  */
2422 CURL_EXTERN CURLcode curl_mime_name(curl_mimepart *part, const char *name);
2423 
2424 /*
2425  * NAME curl_mime_filename()
2426  *
2427  * DESCRIPTION
2428  *
2429  * Set mime part remote file name.
2430  */
2431 CURL_EXTERN CURLcode curl_mime_filename(curl_mimepart *part,
2432                                         const char *filename);
2433 
2434 /*
2435  * NAME curl_mime_type()
2436  *
2437  * DESCRIPTION
2438  *
2439  * Set mime part type.
2440  */
2441 CURL_EXTERN CURLcode curl_mime_type(curl_mimepart *part, const char *mimetype);
2442 
2443 /*
2444  * NAME curl_mime_encoder()
2445  *
2446  * DESCRIPTION
2447  *
2448  * Set mime data transfer encoder.
2449  */
2450 CURL_EXTERN CURLcode curl_mime_encoder(curl_mimepart *part,
2451                                        const char *encoding);
2452 
2453 /*
2454  * NAME curl_mime_data()
2455  *
2456  * DESCRIPTION
2457  *
2458  * Set mime part data source from memory data,
2459  */
2460 CURL_EXTERN CURLcode curl_mime_data(curl_mimepart *part,
2461                                     const char *data, size_t datasize);
2462 
2463 /*
2464  * NAME curl_mime_filedata()
2465  *
2466  * DESCRIPTION
2467  *
2468  * Set mime part data source from named file.
2469  */
2470 CURL_EXTERN CURLcode curl_mime_filedata(curl_mimepart *part,
2471                                         const char *filename);
2472 
2473 /*
2474  * NAME curl_mime_data_cb()
2475  *
2476  * DESCRIPTION
2477  *
2478  * Set mime part data source from callback function.
2479  */
2480 CURL_EXTERN CURLcode curl_mime_data_cb(curl_mimepart *part,
2481                                        curl_off_t datasize,
2482                                        curl_read_callback readfunc,
2483                                        curl_seek_callback seekfunc,
2484                                        curl_free_callback freefunc,
2485                                        void *arg);
2486 
2487 /*
2488  * NAME curl_mime_subparts()
2489  *
2490  * DESCRIPTION
2491  *
2492  * Set mime part data source from subparts.
2493  */
2494 CURL_EXTERN CURLcode curl_mime_subparts(curl_mimepart *part,
2495                                         curl_mime *subparts);
2496 /*
2497  * NAME curl_mime_headers()
2498  *
2499  * DESCRIPTION
2500  *
2501  * Set mime part headers.
2502  */
2503 CURL_EXTERN CURLcode curl_mime_headers(curl_mimepart *part,
2504                                        struct curl_slist *headers,
2505                                        int take_ownership);
2506 
2507 typedef enum {
2508   /********* the first one is unused ************/
2509   CURLFORM_NOTHING         CURL_DEPRECATED(7.56.0, ""),
2510   CURLFORM_COPYNAME        CURL_DEPRECATED(7.56.0, "Use curl_mime_name()"),
2511   CURLFORM_PTRNAME         CURL_DEPRECATED(7.56.0, "Use curl_mime_name()"),
2512   CURLFORM_NAMELENGTH      CURL_DEPRECATED(7.56.0, ""),
2513   CURLFORM_COPYCONTENTS    CURL_DEPRECATED(7.56.0, "Use curl_mime_data()"),
2514   CURLFORM_PTRCONTENTS     CURL_DEPRECATED(7.56.0, "Use curl_mime_data()"),
2515   CURLFORM_CONTENTSLENGTH  CURL_DEPRECATED(7.56.0, "Use curl_mime_data()"),
2516   CURLFORM_FILECONTENT     CURL_DEPRECATED(7.56.0, "Use curl_mime_data_cb()"),
2517   CURLFORM_ARRAY           CURL_DEPRECATED(7.56.0, ""),
2518   CURLFORM_OBSOLETE,
2519   CURLFORM_FILE            CURL_DEPRECATED(7.56.0, "Use curl_mime_filedata()"),
2520 
2521   CURLFORM_BUFFER          CURL_DEPRECATED(7.56.0, "Use curl_mime_filename()"),
2522   CURLFORM_BUFFERPTR       CURL_DEPRECATED(7.56.0, "Use curl_mime_data()"),
2523   CURLFORM_BUFFERLENGTH    CURL_DEPRECATED(7.56.0, "Use curl_mime_data()"),
2524 
2525   CURLFORM_CONTENTTYPE     CURL_DEPRECATED(7.56.0, "Use curl_mime_type()"),
2526   CURLFORM_CONTENTHEADER   CURL_DEPRECATED(7.56.0, "Use curl_mime_headers()"),
2527   CURLFORM_FILENAME        CURL_DEPRECATED(7.56.0, "Use curl_mime_filename()"),
2528   CURLFORM_END,
2529   CURLFORM_OBSOLETE2,
2530 
2531   CURLFORM_STREAM          CURL_DEPRECATED(7.56.0, "Use curl_mime_data_cb()"),
2532   CURLFORM_CONTENTLEN  /* added in 7.46.0, provide a curl_off_t length */
2533                            CURL_DEPRECATED(7.56.0, "Use curl_mime_data()"),
2534 
2535   CURLFORM_LASTENTRY /* the last unused */
2536 } CURLformoption;
2537 
2538 /* structure to be used as parameter for CURLFORM_ARRAY */
2539 struct curl_forms {
2540   CURLformoption option;
2541   const char     *value;
2542 };
2543 
2544 /* use this for multipart formpost building */
2545 /* Returns code for curl_formadd()
2546  *
2547  * Returns:
2548  * CURL_FORMADD_OK             on success
2549  * CURL_FORMADD_MEMORY         if the FormInfo allocation fails
2550  * CURL_FORMADD_OPTION_TWICE   if one option is given twice for one Form
2551  * CURL_FORMADD_NULL           if a null pointer was given for a char
2552  * CURL_FORMADD_MEMORY         if the allocation of a FormInfo struct failed
2553  * CURL_FORMADD_UNKNOWN_OPTION if an unknown option was used
2554  * CURL_FORMADD_INCOMPLETE     if the some FormInfo is not complete (or error)
2555  * CURL_FORMADD_MEMORY         if a curl_httppost struct cannot be allocated
2556  * CURL_FORMADD_MEMORY         if some allocation for string copying failed.
2557  * CURL_FORMADD_ILLEGAL_ARRAY  if an illegal option is used in an array
2558  *
2559  ***************************************************************************/
2560 typedef enum {
2561   CURL_FORMADD_OK             CURL_DEPRECATED(7.56.0, ""), /* 1st, no error */
2562 
2563   CURL_FORMADD_MEMORY         CURL_DEPRECATED(7.56.0, ""),
2564   CURL_FORMADD_OPTION_TWICE   CURL_DEPRECATED(7.56.0, ""),
2565   CURL_FORMADD_NULL           CURL_DEPRECATED(7.56.0, ""),
2566   CURL_FORMADD_UNKNOWN_OPTION CURL_DEPRECATED(7.56.0, ""),
2567   CURL_FORMADD_INCOMPLETE     CURL_DEPRECATED(7.56.0, ""),
2568   CURL_FORMADD_ILLEGAL_ARRAY  CURL_DEPRECATED(7.56.0, ""),
2569   /* libcurl was built with form api disabled */
2570   CURL_FORMADD_DISABLED       CURL_DEPRECATED(7.56.0, ""),
2571 
2572   CURL_FORMADD_LAST /* last */
2573 } CURLFORMcode;
2574 
2575 /*
2576  * NAME curl_formadd()
2577  *
2578  * DESCRIPTION
2579  *
2580  * Pretty advanced function for building multi-part formposts. Each invoke
2581  * adds one part that together construct a full post. Then use
2582  * CURLOPT_HTTPPOST to send it off to libcurl.
2583  */
2584 CURL_EXTERN CURLFORMcode CURL_DEPRECATED(7.56.0, "Use curl_mime_init()")
2585 curl_formadd(struct curl_httppost **httppost,
2586              struct curl_httppost **last_post,
2587              ...);
2588 
2589 /*
2590  * callback function for curl_formget()
2591  * The void *arg pointer will be the one passed as second argument to
2592  *   curl_formget().
2593  * The character buffer passed to it must not be freed.
2594  * Should return the buffer length passed to it as the argument "len" on
2595  *   success.
2596  */
2597 typedef size_t (*curl_formget_callback)(void *arg, const char *buf,
2598                                         size_t len);
2599 
2600 /*
2601  * NAME curl_formget()
2602  *
2603  * DESCRIPTION
2604  *
2605  * Serialize a curl_httppost struct built with curl_formadd().
2606  * Accepts a void pointer as second argument which will be passed to
2607  * the curl_formget_callback function.
2608  * Returns 0 on success.
2609  */
2610 CURL_EXTERN int CURL_DEPRECATED(7.56.0, "")
2611 curl_formget(struct curl_httppost *form, void *arg,
2612              curl_formget_callback append);
2613 /*
2614  * NAME curl_formfree()
2615  *
2616  * DESCRIPTION
2617  *
2618  * Free a multipart formpost previously built with curl_formadd().
2619  */
2620 CURL_EXTERN void CURL_DEPRECATED(7.56.0, "Use curl_mime_free()")
2621 curl_formfree(struct curl_httppost *form);
2622 
2623 /*
2624  * NAME curl_getenv()
2625  *
2626  * DESCRIPTION
2627  *
2628  * Returns a malloc()'ed string that MUST be curl_free()ed after usage is
2629  * complete. DEPRECATED - see lib/README.curlx
2630  */
2631 CURL_EXTERN char *curl_getenv(const char *variable);
2632 
2633 /*
2634  * NAME curl_version()
2635  *
2636  * DESCRIPTION
2637  *
2638  * Returns a static ascii string of the libcurl version.
2639  */
2640 CURL_EXTERN char *curl_version(void);
2641 
2642 /*
2643  * NAME curl_easy_escape()
2644  *
2645  * DESCRIPTION
2646  *
2647  * Escapes URL strings (converts all letters consider illegal in URLs to their
2648  * %XX versions). This function returns a new allocated string or NULL if an
2649  * error occurred.
2650  */
2651 CURL_EXTERN char *curl_easy_escape(CURL *handle,
2652                                    const char *string,
2653                                    int length);
2654 
2655 /* the previous version: */
2656 CURL_EXTERN char *curl_escape(const char *string,
2657                               int length);
2658 
2659 
2660 /*
2661  * NAME curl_easy_unescape()
2662  *
2663  * DESCRIPTION
2664  *
2665  * Unescapes URL encoding in strings (converts all %XX codes to their 8bit
2666  * versions). This function returns a new allocated string or NULL if an error
2667  * occurred.
2668  * Conversion Note: On non-ASCII platforms the ASCII %XX codes are
2669  * converted into the host encoding.
2670  */
2671 CURL_EXTERN char *curl_easy_unescape(CURL *handle,
2672                                      const char *string,
2673                                      int length,
2674                                      int *outlength);
2675 
2676 /* the previous version */
2677 CURL_EXTERN char *curl_unescape(const char *string,
2678                                 int length);
2679 
2680 /*
2681  * NAME curl_free()
2682  *
2683  * DESCRIPTION
2684  *
2685  * Provided for de-allocation in the same translation unit that did the
2686  * allocation. Added in libcurl 7.10
2687  */
2688 CURL_EXTERN void curl_free(void *p);
2689 
2690 /*
2691  * NAME curl_global_init()
2692  *
2693  * DESCRIPTION
2694  *
2695  * curl_global_init() should be invoked exactly once for each application that
2696  * uses libcurl and before any call of other libcurl functions.
2697 
2698  * This function is thread-safe if CURL_VERSION_THREADSAFE is set in the
2699  * curl_version_info_data.features flag (fetch by curl_version_info()).
2700 
2701  */
2702 CURL_EXTERN CURLcode curl_global_init(long flags);
2703 
2704 /*
2705  * NAME curl_global_init_mem()
2706  *
2707  * DESCRIPTION
2708  *
2709  * curl_global_init() or curl_global_init_mem() should be invoked exactly once
2710  * for each application that uses libcurl.  This function can be used to
2711  * initialize libcurl and set user defined memory management callback
2712  * functions.  Users can implement memory management routines to check for
2713  * memory leaks, check for mis-use of the curl library etc.  User registered
2714  * callback routines will be invoked by this library instead of the system
2715  * memory management routines like malloc, free etc.
2716  */
2717 CURL_EXTERN CURLcode curl_global_init_mem(long flags,
2718                                           curl_malloc_callback m,
2719                                           curl_free_callback f,
2720                                           curl_realloc_callback r,
2721                                           curl_strdup_callback s,
2722                                           curl_calloc_callback c);
2723 
2724 /*
2725  * NAME curl_global_cleanup()
2726  *
2727  * DESCRIPTION
2728  *
2729  * curl_global_cleanup() should be invoked exactly once for each application
2730  * that uses libcurl
2731  */
2732 CURL_EXTERN void curl_global_cleanup(void);
2733 
2734 /*
2735  * NAME curl_global_trace()
2736  *
2737  * DESCRIPTION
2738  *
2739  * curl_global_trace() can be invoked at application start to
2740  * configure which components in curl should participate in tracing.
2741 
2742  * This function is thread-safe if CURL_VERSION_THREADSAFE is set in the
2743  * curl_version_info_data.features flag (fetch by curl_version_info()).
2744 
2745  */
2746 CURL_EXTERN CURLcode curl_global_trace(const char *config);
2747 
2748 /* linked-list structure for the CURLOPT_QUOTE option (and other) */
2749 struct curl_slist {
2750   char *data;
2751   struct curl_slist *next;
2752 };
2753 
2754 /*
2755  * NAME curl_global_sslset()
2756  *
2757  * DESCRIPTION
2758  *
2759  * When built with multiple SSL backends, curl_global_sslset() allows to
2760  * choose one. This function can only be called once, and it must be called
2761  * *before* curl_global_init().
2762  *
2763  * The backend can be identified by the id (e.g. CURLSSLBACKEND_OPENSSL). The
2764  * backend can also be specified via the name parameter (passing -1 as id).
2765  * If both id and name are specified, the name will be ignored. If neither id
2766  * nor name are specified, the function will fail with
2767  * CURLSSLSET_UNKNOWN_BACKEND and set the "avail" pointer to the
2768  * NULL-terminated list of available backends.
2769  *
2770  * Upon success, the function returns CURLSSLSET_OK.
2771  *
2772  * If the specified SSL backend is not available, the function returns
2773  * CURLSSLSET_UNKNOWN_BACKEND and sets the "avail" pointer to a NULL-terminated
2774  * list of available SSL backends.
2775  *
2776  * The SSL backend can be set only once. If it has already been set, a
2777  * subsequent attempt to change it will result in a CURLSSLSET_TOO_LATE.
2778  */
2779 
2780 struct curl_ssl_backend {
2781   curl_sslbackend id;
2782   const char *name;
2783 };
2784 typedef struct curl_ssl_backend curl_ssl_backend;
2785 
2786 typedef enum {
2787   CURLSSLSET_OK = 0,
2788   CURLSSLSET_UNKNOWN_BACKEND,
2789   CURLSSLSET_TOO_LATE,
2790   CURLSSLSET_NO_BACKENDS /* libcurl was built without any SSL support */
2791 } CURLsslset;
2792 
2793 CURL_EXTERN CURLsslset curl_global_sslset(curl_sslbackend id, const char *name,
2794                                           const curl_ssl_backend ***avail);
2795 
2796 /*
2797  * NAME curl_slist_append()
2798  *
2799  * DESCRIPTION
2800  *
2801  * Appends a string to a linked list. If no list exists, it will be created
2802  * first. Returns the new list, after appending.
2803  */
2804 CURL_EXTERN struct curl_slist *curl_slist_append(struct curl_slist *list,
2805                                                  const char *data);
2806 
2807 /*
2808  * NAME curl_slist_free_all()
2809  *
2810  * DESCRIPTION
2811  *
2812  * free a previously built curl_slist.
2813  */
2814 CURL_EXTERN void curl_slist_free_all(struct curl_slist *list);
2815 
2816 /*
2817  * NAME curl_getdate()
2818  *
2819  * DESCRIPTION
2820  *
2821  * Returns the time, in seconds since 1 Jan 1970 of the time string given in
2822  * the first argument. The time argument in the second parameter is unused
2823  * and should be set to NULL.
2824  */
2825 CURL_EXTERN time_t curl_getdate(const char *p, const time_t *unused);
2826 
2827 /* info about the certificate chain, for SSL backends that support it. Asked
2828    for with CURLOPT_CERTINFO / CURLINFO_CERTINFO */
2829 struct curl_certinfo {
2830   int num_of_certs;             /* number of certificates with information */
2831   struct curl_slist **certinfo; /* for each index in this array, there's a
2832                                    linked list with textual information for a
2833                                    certificate in the format "name:content".
2834                                    eg "Subject:foo", "Issuer:bar", etc. */
2835 };
2836 
2837 /* Information about the SSL library used and the respective internal SSL
2838    handle, which can be used to obtain further information regarding the
2839    connection. Asked for with CURLINFO_TLS_SSL_PTR or CURLINFO_TLS_SESSION. */
2840 struct curl_tlssessioninfo {
2841   curl_sslbackend backend;
2842   void *internals;
2843 };
2844 
2845 #define CURLINFO_STRING   0x100000
2846 #define CURLINFO_LONG     0x200000
2847 #define CURLINFO_DOUBLE   0x300000
2848 #define CURLINFO_SLIST    0x400000
2849 #define CURLINFO_PTR      0x400000 /* same as SLIST */
2850 #define CURLINFO_SOCKET   0x500000
2851 #define CURLINFO_OFF_T    0x600000
2852 #define CURLINFO_MASK     0x0fffff
2853 #define CURLINFO_TYPEMASK 0xf00000
2854 
2855 typedef enum {
2856   CURLINFO_NONE, /* first, never use this */
2857   CURLINFO_EFFECTIVE_URL    = CURLINFO_STRING + 1,
2858   CURLINFO_RESPONSE_CODE    = CURLINFO_LONG   + 2,
2859   CURLINFO_TOTAL_TIME       = CURLINFO_DOUBLE + 3,
2860   CURLINFO_NAMELOOKUP_TIME  = CURLINFO_DOUBLE + 4,
2861   CURLINFO_CONNECT_TIME     = CURLINFO_DOUBLE + 5,
2862   CURLINFO_PRETRANSFER_TIME = CURLINFO_DOUBLE + 6,
2863   CURLINFO_SIZE_UPLOAD CURL_DEPRECATED(7.55.0, "Use CURLINFO_SIZE_UPLOAD_T")
2864                             = CURLINFO_DOUBLE + 7,
2865   CURLINFO_SIZE_UPLOAD_T    = CURLINFO_OFF_T  + 7,
2866   CURLINFO_SIZE_DOWNLOAD
2867                        CURL_DEPRECATED(7.55.0, "Use CURLINFO_SIZE_DOWNLOAD_T")
2868                             = CURLINFO_DOUBLE + 8,
2869   CURLINFO_SIZE_DOWNLOAD_T  = CURLINFO_OFF_T  + 8,
2870   CURLINFO_SPEED_DOWNLOAD
2871                        CURL_DEPRECATED(7.55.0, "Use CURLINFO_SPEED_DOWNLOAD_T")
2872                             = CURLINFO_DOUBLE + 9,
2873   CURLINFO_SPEED_DOWNLOAD_T = CURLINFO_OFF_T  + 9,
2874   CURLINFO_SPEED_UPLOAD
2875                        CURL_DEPRECATED(7.55.0, "Use CURLINFO_SPEED_UPLOAD_T")
2876                             = CURLINFO_DOUBLE + 10,
2877   CURLINFO_SPEED_UPLOAD_T   = CURLINFO_OFF_T  + 10,
2878   CURLINFO_HEADER_SIZE      = CURLINFO_LONG   + 11,
2879   CURLINFO_REQUEST_SIZE     = CURLINFO_LONG   + 12,
2880   CURLINFO_SSL_VERIFYRESULT = CURLINFO_LONG   + 13,
2881   CURLINFO_FILETIME         = CURLINFO_LONG   + 14,
2882   CURLINFO_FILETIME_T       = CURLINFO_OFF_T  + 14,
2883   CURLINFO_CONTENT_LENGTH_DOWNLOAD
2884                        CURL_DEPRECATED(7.55.0,
2885                                       "Use CURLINFO_CONTENT_LENGTH_DOWNLOAD_T")
2886                             = CURLINFO_DOUBLE + 15,
2887   CURLINFO_CONTENT_LENGTH_DOWNLOAD_T = CURLINFO_OFF_T  + 15,
2888   CURLINFO_CONTENT_LENGTH_UPLOAD
2889                        CURL_DEPRECATED(7.55.0,
2890                                        "Use CURLINFO_CONTENT_LENGTH_UPLOAD_T")
2891                             = CURLINFO_DOUBLE + 16,
2892   CURLINFO_CONTENT_LENGTH_UPLOAD_T   = CURLINFO_OFF_T  + 16,
2893   CURLINFO_STARTTRANSFER_TIME = CURLINFO_DOUBLE + 17,
2894   CURLINFO_CONTENT_TYPE     = CURLINFO_STRING + 18,
2895   CURLINFO_REDIRECT_TIME    = CURLINFO_DOUBLE + 19,
2896   CURLINFO_REDIRECT_COUNT   = CURLINFO_LONG   + 20,
2897   CURLINFO_PRIVATE          = CURLINFO_STRING + 21,
2898   CURLINFO_HTTP_CONNECTCODE = CURLINFO_LONG   + 22,
2899   CURLINFO_HTTPAUTH_AVAIL   = CURLINFO_LONG   + 23,
2900   CURLINFO_PROXYAUTH_AVAIL  = CURLINFO_LONG   + 24,
2901   CURLINFO_OS_ERRNO         = CURLINFO_LONG   + 25,
2902   CURLINFO_NUM_CONNECTS     = CURLINFO_LONG   + 26,
2903   CURLINFO_SSL_ENGINES      = CURLINFO_SLIST  + 27,
2904   CURLINFO_COOKIELIST       = CURLINFO_SLIST  + 28,
2905   CURLINFO_LASTSOCKET  CURL_DEPRECATED(7.45.0, "Use CURLINFO_ACTIVESOCKET")
2906                             = CURLINFO_LONG   + 29,
2907   CURLINFO_FTP_ENTRY_PATH   = CURLINFO_STRING + 30,
2908   CURLINFO_REDIRECT_URL     = CURLINFO_STRING + 31,
2909   CURLINFO_PRIMARY_IP       = CURLINFO_STRING + 32,
2910   CURLINFO_APPCONNECT_TIME  = CURLINFO_DOUBLE + 33,
2911   CURLINFO_CERTINFO         = CURLINFO_PTR    + 34,
2912   CURLINFO_CONDITION_UNMET  = CURLINFO_LONG   + 35,
2913   CURLINFO_RTSP_SESSION_ID  = CURLINFO_STRING + 36,
2914   CURLINFO_RTSP_CLIENT_CSEQ = CURLINFO_LONG   + 37,
2915   CURLINFO_RTSP_SERVER_CSEQ = CURLINFO_LONG   + 38,
2916   CURLINFO_RTSP_CSEQ_RECV   = CURLINFO_LONG   + 39,
2917   CURLINFO_PRIMARY_PORT     = CURLINFO_LONG   + 40,
2918   CURLINFO_LOCAL_IP         = CURLINFO_STRING + 41,
2919   CURLINFO_LOCAL_PORT       = CURLINFO_LONG   + 42,
2920   CURLINFO_TLS_SESSION CURL_DEPRECATED(7.48.0, "Use CURLINFO_TLS_SSL_PTR")
2921                             = CURLINFO_PTR    + 43,
2922   CURLINFO_ACTIVESOCKET     = CURLINFO_SOCKET + 44,
2923   CURLINFO_TLS_SSL_PTR      = CURLINFO_PTR    + 45,
2924   CURLINFO_HTTP_VERSION     = CURLINFO_LONG   + 46,
2925   CURLINFO_PROXY_SSL_VERIFYRESULT = CURLINFO_LONG + 47,
2926   CURLINFO_PROTOCOL    CURL_DEPRECATED(7.85.0, "Use CURLINFO_SCHEME")
2927                             = CURLINFO_LONG   + 48,
2928   CURLINFO_SCHEME           = CURLINFO_STRING + 49,
2929   CURLINFO_TOTAL_TIME_T     = CURLINFO_OFF_T + 50,
2930   CURLINFO_NAMELOOKUP_TIME_T = CURLINFO_OFF_T + 51,
2931   CURLINFO_CONNECT_TIME_T   = CURLINFO_OFF_T + 52,
2932   CURLINFO_PRETRANSFER_TIME_T = CURLINFO_OFF_T + 53,
2933   CURLINFO_STARTTRANSFER_TIME_T = CURLINFO_OFF_T + 54,
2934   CURLINFO_REDIRECT_TIME_T  = CURLINFO_OFF_T + 55,
2935   CURLINFO_APPCONNECT_TIME_T = CURLINFO_OFF_T + 56,
2936   CURLINFO_RETRY_AFTER      = CURLINFO_OFF_T + 57,
2937   CURLINFO_EFFECTIVE_METHOD = CURLINFO_STRING + 58,
2938   CURLINFO_PROXY_ERROR      = CURLINFO_LONG + 59,
2939   CURLINFO_REFERER          = CURLINFO_STRING + 60,
2940   CURLINFO_CAINFO           = CURLINFO_STRING + 61,
2941   CURLINFO_CAPATH           = CURLINFO_STRING + 62,
2942   CURLINFO_XFER_ID          = CURLINFO_OFF_T + 63,
2943   CURLINFO_CONN_ID          = CURLINFO_OFF_T + 64,
2944   CURLINFO_LASTONE          = 64
2945 } CURLINFO;
2946 
2947 /* CURLINFO_RESPONSE_CODE is the new name for the option previously known as
2948    CURLINFO_HTTP_CODE */
2949 #define CURLINFO_HTTP_CODE CURLINFO_RESPONSE_CODE
2950 
2951 typedef enum {
2952   CURLCLOSEPOLICY_NONE, /* first, never use this */
2953 
2954   CURLCLOSEPOLICY_OLDEST,
2955   CURLCLOSEPOLICY_LEAST_RECENTLY_USED,
2956   CURLCLOSEPOLICY_LEAST_TRAFFIC,
2957   CURLCLOSEPOLICY_SLOWEST,
2958   CURLCLOSEPOLICY_CALLBACK,
2959 
2960   CURLCLOSEPOLICY_LAST /* last, never use this */
2961 } curl_closepolicy;
2962 
2963 #define CURL_GLOBAL_SSL (1<<0) /* no purpose since 7.57.0 */
2964 #define CURL_GLOBAL_WIN32 (1<<1)
2965 #define CURL_GLOBAL_ALL (CURL_GLOBAL_SSL|CURL_GLOBAL_WIN32)
2966 #define CURL_GLOBAL_NOTHING 0
2967 #define CURL_GLOBAL_DEFAULT CURL_GLOBAL_ALL
2968 #define CURL_GLOBAL_ACK_EINTR (1<<2)
2969 
2970 
2971 /*****************************************************************************
2972  * Setup defines, protos etc for the sharing stuff.
2973  */
2974 
2975 /* Different data locks for a single share */
2976 typedef enum {
2977   CURL_LOCK_DATA_NONE = 0,
2978   /*  CURL_LOCK_DATA_SHARE is used internally to say that
2979    *  the locking is just made to change the internal state of the share
2980    *  itself.
2981    */
2982   CURL_LOCK_DATA_SHARE,
2983   CURL_LOCK_DATA_COOKIE,
2984   CURL_LOCK_DATA_DNS,
2985   CURL_LOCK_DATA_SSL_SESSION,
2986   CURL_LOCK_DATA_CONNECT,
2987   CURL_LOCK_DATA_PSL,
2988   CURL_LOCK_DATA_HSTS,
2989   CURL_LOCK_DATA_LAST
2990 } curl_lock_data;
2991 
2992 /* Different lock access types */
2993 typedef enum {
2994   CURL_LOCK_ACCESS_NONE = 0,   /* unspecified action */
2995   CURL_LOCK_ACCESS_SHARED = 1, /* for read perhaps */
2996   CURL_LOCK_ACCESS_SINGLE = 2, /* for write perhaps */
2997   CURL_LOCK_ACCESS_LAST        /* never use */
2998 } curl_lock_access;
2999 
3000 typedef void (*curl_lock_function)(CURL *handle,
3001                                    curl_lock_data data,
3002                                    curl_lock_access locktype,
3003                                    void *userptr);
3004 typedef void (*curl_unlock_function)(CURL *handle,
3005                                      curl_lock_data data,
3006                                      void *userptr);
3007 
3008 
3009 typedef enum {
3010   CURLSHE_OK,  /* all is fine */
3011   CURLSHE_BAD_OPTION, /* 1 */
3012   CURLSHE_IN_USE,     /* 2 */
3013   CURLSHE_INVALID,    /* 3 */
3014   CURLSHE_NOMEM,      /* 4 out of memory */
3015   CURLSHE_NOT_BUILT_IN, /* 5 feature not present in lib */
3016   CURLSHE_LAST        /* never use */
3017 } CURLSHcode;
3018 
3019 typedef enum {
3020   CURLSHOPT_NONE,  /* don't use */
3021   CURLSHOPT_SHARE,   /* specify a data type to share */
3022   CURLSHOPT_UNSHARE, /* specify which data type to stop sharing */
3023   CURLSHOPT_LOCKFUNC,   /* pass in a 'curl_lock_function' pointer */
3024   CURLSHOPT_UNLOCKFUNC, /* pass in a 'curl_unlock_function' pointer */
3025   CURLSHOPT_USERDATA,   /* pass in a user data pointer used in the lock/unlock
3026                            callback functions */
3027   CURLSHOPT_LAST  /* never use */
3028 } CURLSHoption;
3029 
3030 CURL_EXTERN CURLSH *curl_share_init(void);
3031 CURL_EXTERN CURLSHcode curl_share_setopt(CURLSH *share, CURLSHoption option,
3032                                          ...);
3033 CURL_EXTERN CURLSHcode curl_share_cleanup(CURLSH *share);
3034 
3035 /****************************************************************************
3036  * Structures for querying information about the curl library at runtime.
3037  */
3038 
3039 typedef enum {
3040   CURLVERSION_FIRST,
3041   CURLVERSION_SECOND,
3042   CURLVERSION_THIRD,
3043   CURLVERSION_FOURTH,
3044   CURLVERSION_FIFTH,
3045   CURLVERSION_SIXTH,
3046   CURLVERSION_SEVENTH,
3047   CURLVERSION_EIGHTH,
3048   CURLVERSION_NINTH,
3049   CURLVERSION_TENTH,
3050   CURLVERSION_ELEVENTH,
3051   CURLVERSION_LAST /* never actually use this */
3052 } CURLversion;
3053 
3054 /* The 'CURLVERSION_NOW' is the symbolic name meant to be used by
3055    basically all programs ever that want to get version information. It is
3056    meant to be a built-in version number for what kind of struct the caller
3057    expects. If the struct ever changes, we redefine the NOW to another enum
3058    from above. */
3059 #define CURLVERSION_NOW CURLVERSION_ELEVENTH
3060 
3061 struct curl_version_info_data {
3062   CURLversion age;          /* age of the returned struct */
3063   const char *version;      /* LIBCURL_VERSION */
3064   unsigned int version_num; /* LIBCURL_VERSION_NUM */
3065   const char *host;         /* OS/host/cpu/machine when configured */
3066   int features;             /* bitmask, see defines below */
3067   const char *ssl_version;  /* human readable string */
3068   long ssl_version_num;     /* not used anymore, always 0 */
3069   const char *libz_version; /* human readable string */
3070   /* protocols is terminated by an entry with a NULL protoname */
3071   const char * const *protocols;
3072 
3073   /* The fields below this were added in CURLVERSION_SECOND */
3074   const char *ares;
3075   int ares_num;
3076 
3077   /* This field was added in CURLVERSION_THIRD */
3078   const char *libidn;
3079 
3080   /* These field were added in CURLVERSION_FOURTH */
3081 
3082   /* Same as '_libiconv_version' if built with HAVE_ICONV */
3083   int iconv_ver_num;
3084 
3085   const char *libssh_version; /* human readable string */
3086 
3087   /* These fields were added in CURLVERSION_FIFTH */
3088   unsigned int brotli_ver_num; /* Numeric Brotli version
3089                                   (MAJOR << 24) | (MINOR << 12) | PATCH */
3090   const char *brotli_version; /* human readable string. */
3091 
3092   /* These fields were added in CURLVERSION_SIXTH */
3093   unsigned int nghttp2_ver_num; /* Numeric nghttp2 version
3094                                    (MAJOR << 16) | (MINOR << 8) | PATCH */
3095   const char *nghttp2_version; /* human readable string. */
3096   const char *quic_version;    /* human readable quic (+ HTTP/3) library +
3097                                   version or NULL */
3098 
3099   /* These fields were added in CURLVERSION_SEVENTH */
3100   const char *cainfo;          /* the built-in default CURLOPT_CAINFO, might
3101                                   be NULL */
3102   const char *capath;          /* the built-in default CURLOPT_CAPATH, might
3103                                   be NULL */
3104 
3105   /* These fields were added in CURLVERSION_EIGHTH */
3106   unsigned int zstd_ver_num; /* Numeric Zstd version
3107                                   (MAJOR << 24) | (MINOR << 12) | PATCH */
3108   const char *zstd_version; /* human readable string. */
3109 
3110   /* These fields were added in CURLVERSION_NINTH */
3111   const char *hyper_version; /* human readable string. */
3112 
3113   /* These fields were added in CURLVERSION_TENTH */
3114   const char *gsasl_version; /* human readable string. */
3115 
3116   /* These fields were added in CURLVERSION_ELEVENTH */
3117   /* feature_names is terminated by an entry with a NULL feature name */
3118   const char * const *feature_names;
3119 };
3120 typedef struct curl_version_info_data curl_version_info_data;
3121 
3122 #define CURL_VERSION_IPV6         (1<<0)  /* IPv6-enabled */
3123 #define CURL_VERSION_KERBEROS4    (1<<1)  /* Kerberos V4 auth is supported
3124                                              (deprecated) */
3125 #define CURL_VERSION_SSL          (1<<2)  /* SSL options are present */
3126 #define CURL_VERSION_LIBZ         (1<<3)  /* libz features are present */
3127 #define CURL_VERSION_NTLM         (1<<4)  /* NTLM auth is supported */
3128 #define CURL_VERSION_GSSNEGOTIATE (1<<5)  /* Negotiate auth is supported
3129                                              (deprecated) */
3130 #define CURL_VERSION_DEBUG        (1<<6)  /* Built with debug capabilities */
3131 #define CURL_VERSION_ASYNCHDNS    (1<<7)  /* Asynchronous DNS resolves */
3132 #define CURL_VERSION_SPNEGO       (1<<8)  /* SPNEGO auth is supported */
3133 #define CURL_VERSION_LARGEFILE    (1<<9)  /* Supports files larger than 2GB */
3134 #define CURL_VERSION_IDN          (1<<10) /* Internationized Domain Names are
3135                                              supported */
3136 #define CURL_VERSION_SSPI         (1<<11) /* Built against Windows SSPI */
3137 #define CURL_VERSION_CONV         (1<<12) /* Character conversions supported */
3138 #define CURL_VERSION_CURLDEBUG    (1<<13) /* Debug memory tracking supported */
3139 #define CURL_VERSION_TLSAUTH_SRP  (1<<14) /* TLS-SRP auth is supported */
3140 #define CURL_VERSION_NTLM_WB      (1<<15) /* NTLM delegation to winbind helper
3141                                              is supported */
3142 #define CURL_VERSION_HTTP2        (1<<16) /* HTTP2 support built-in */
3143 #define CURL_VERSION_GSSAPI       (1<<17) /* Built against a GSS-API library */
3144 #define CURL_VERSION_KERBEROS5    (1<<18) /* Kerberos V5 auth is supported */
3145 #define CURL_VERSION_UNIX_SOCKETS (1<<19) /* Unix domain sockets support */
3146 #define CURL_VERSION_PSL          (1<<20) /* Mozilla's Public Suffix List, used
3147                                              for cookie domain verification */
3148 #define CURL_VERSION_HTTPS_PROXY  (1<<21) /* HTTPS-proxy support built-in */
3149 #define CURL_VERSION_MULTI_SSL    (1<<22) /* Multiple SSL backends available */
3150 #define CURL_VERSION_BROTLI       (1<<23) /* Brotli features are present. */
3151 #define CURL_VERSION_ALTSVC       (1<<24) /* Alt-Svc handling built-in */
3152 #define CURL_VERSION_HTTP3        (1<<25) /* HTTP3 support built-in */
3153 #define CURL_VERSION_ZSTD         (1<<26) /* zstd features are present */
3154 #define CURL_VERSION_UNICODE      (1<<27) /* Unicode support on Windows */
3155 #define CURL_VERSION_HSTS         (1<<28) /* HSTS is supported */
3156 #define CURL_VERSION_GSASL        (1<<29) /* libgsasl is supported */
3157 #define CURL_VERSION_THREADSAFE   (1<<30) /* libcurl API is thread-safe */
3158 
3159  /*
3160  * NAME curl_version_info()
3161  *
3162  * DESCRIPTION
3163  *
3164  * This function returns a pointer to a static copy of the version info
3165  * struct. See above.
3166  */
3167 CURL_EXTERN curl_version_info_data *curl_version_info(CURLversion);
3168 
3169 /*
3170  * NAME curl_easy_strerror()
3171  *
3172  * DESCRIPTION
3173  *
3174  * The curl_easy_strerror function may be used to turn a CURLcode value
3175  * into the equivalent human readable error string.  This is useful
3176  * for printing meaningful error messages.
3177  */
3178 CURL_EXTERN const char *curl_easy_strerror(CURLcode);
3179 
3180 /*
3181  * NAME curl_share_strerror()
3182  *
3183  * DESCRIPTION
3184  *
3185  * The curl_share_strerror function may be used to turn a CURLSHcode value
3186  * into the equivalent human readable error string.  This is useful
3187  * for printing meaningful error messages.
3188  */
3189 CURL_EXTERN const char *curl_share_strerror(CURLSHcode);
3190 
3191 /*
3192  * NAME curl_easy_pause()
3193  *
3194  * DESCRIPTION
3195  *
3196  * The curl_easy_pause function pauses or unpauses transfers. Select the new
3197  * state by setting the bitmask, use the convenience defines below.
3198  *
3199  */
3200 CURL_EXTERN CURLcode curl_easy_pause(CURL *handle, int bitmask);
3201 
3202 #define CURLPAUSE_RECV      (1<<0)
3203 #define CURLPAUSE_RECV_CONT (0)
3204 
3205 #define CURLPAUSE_SEND      (1<<2)
3206 #define CURLPAUSE_SEND_CONT (0)
3207 
3208 #define CURLPAUSE_ALL       (CURLPAUSE_RECV|CURLPAUSE_SEND)
3209 #define CURLPAUSE_CONT      (CURLPAUSE_RECV_CONT|CURLPAUSE_SEND_CONT)
3210 
3211 #ifdef  __cplusplus
3212 } /* end of extern "C" */
3213 #endif
3214 
3215 /* unfortunately, the easy.h and multi.h include files need options and info
3216   stuff before they can be included! */
3217 #include "easy.h" /* nothing in curl is fun without the easy stuff */
3218 #include "multi.h"
3219 #include "urlapi.h"
3220 #include "options.h"
3221 #include "header.h"
3222 #include "websockets.h"
3223 
3224 /* the typechecker doesn't work in C++ (yet) */
3225 #if defined(__GNUC__) && defined(__GNUC_MINOR__) && \
3226     ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)) && \
3227     !defined(__cplusplus) && !defined(CURL_DISABLE_TYPECHECK)
3228 #include "typecheck-gcc.h"
3229 #else
3230 #if defined(__STDC__) && (__STDC__ >= 1)
3231 /* This preprocessor magic that replaces a call with the exact same call is
3232    only done to make sure application authors pass exactly three arguments
3233    to these functions. */
3234 #define curl_easy_setopt(handle,opt,param) curl_easy_setopt(handle,opt,param)
3235 #define curl_easy_getinfo(handle,info,arg) curl_easy_getinfo(handle,info,arg)
3236 #define curl_share_setopt(share,opt,param) curl_share_setopt(share,opt,param)
3237 #define curl_multi_setopt(handle,opt,param) curl_multi_setopt(handle,opt,param)
3238 #endif /* __STDC__ >= 1 */
3239 #endif /* gcc >= 4.3 && !__cplusplus && !CURL_DISABLE_TYPECHECK */
3240 
3241 #endif /* CURLINC_CURL_H */
3242