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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 #include <stdio.h>
57 #include <limits.h>
58 
59 #if defined(__FreeBSD__) || defined(__MidnightBSD__)
60 /* Needed for __FreeBSD_version or __MidnightBSD_version symbol definition */
61 #include <sys/param.h>
62 #endif
63 
64 /* The include stuff here below is mainly for time_t! */
65 #include <sys/types.h>
66 #include <time.h>
67 
68 #if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__CYGWIN__)
69 #if !(defined(_WINSOCKAPI_) || defined(_WINSOCK_H) || \
70       defined(__LWIP_OPT_H__) || defined(LWIP_HDR_OPT_H))
71 /* The check above prevents the winsock2 inclusion if winsock.h already was
72    included, since they can't co-exist without problems */
73 #include <winsock2.h>
74 #include <ws2tcpip.h>
75 #endif
76 #endif
77 
78 /* HP-UX systems version 9, 10 and 11 lack sys/select.h and so does oldish
79    libc5-based Linux systems. Only include it on systems that are known to
80    require it! */
81 #if defined(_AIX) || defined(__NOVELL_LIBC__) || defined(__NetBSD__) || \
82     defined(__minix) || defined(__INTEGRITY) || \
83     defined(ANDROID) || defined(__ANDROID__) || defined(__OpenBSD__) || \
84     defined(__CYGWIN__) || defined(AMIGA) || defined(__NuttX__) || \
85    (defined(__FreeBSD_version) && (__FreeBSD_version < 800000)) || \
86    (defined(__MidnightBSD_version) && (__MidnightBSD_version < 100000)) || \
87     defined(__sun__) || defined(__serenity__) || defined(__vxworks__)
88 #include <sys/select.h>
89 #endif
90 
91 #if !defined(_WIN32) && !defined(_WIN32_WCE)
92 #include <sys/socket.h>
93 #endif
94 
95 #if !defined(_WIN32)
96 #include <sys/time.h>
97 #endif
98 
99 /* Compatibility for non-Clang compilers */
100 #ifndef __has_declspec_attribute
101 #  define __has_declspec_attribute(x) 0
102 #endif
103 
104 #ifdef  __cplusplus
105 extern "C" {
106 #endif
107 
108 #if defined(BUILDING_LIBCURL) || defined(CURL_STRICTER)
109 typedef struct Curl_easy CURL;
110 typedef struct Curl_share CURLSH;
111 #else
112 typedef void CURL;
113 typedef void CURLSH;
114 #endif
115 
116 /*
117  * libcurl external API function linkage decorations.
118  */
119 
120 #ifdef CURL_STATICLIB
121 #  define CURL_EXTERN
122 #elif defined(_WIN32) || \
123      (__has_declspec_attribute(dllexport) && \
124       __has_declspec_attribute(dllimport))
125 #  if defined(BUILDING_LIBCURL)
126 #    define CURL_EXTERN  __declspec(dllexport)
127 #  else
128 #    define CURL_EXTERN  __declspec(dllimport)
129 #  endif
130 #elif defined(BUILDING_LIBCURL) && defined(CURL_HIDDEN_SYMBOLS)
131 #  define CURL_EXTERN CURL_EXTERN_SYMBOL
132 #else
133 #  define CURL_EXTERN
134 #endif
135 
136 #ifndef curl_socket_typedef
137 /* socket typedef */
138 #if defined(_WIN32) && !defined(__LWIP_OPT_H__) && !defined(LWIP_HDR_OPT_H)
139 typedef SOCKET curl_socket_t;
140 #define CURL_SOCKET_BAD INVALID_SOCKET
141 #else
142 typedef int curl_socket_t;
143 #define CURL_SOCKET_BAD -1
144 #endif
145 #define curl_socket_typedef
146 #endif /* curl_socket_typedef */
147 
148 /* enum for the different supported SSL backends */
149 typedef enum {
150   CURLSSLBACKEND_NONE = 0,
151   CURLSSLBACKEND_OPENSSL = 1,
152   CURLSSLBACKEND_GNUTLS = 2,
153   CURLSSLBACKEND_NSS                    CURL_DEPRECATED(8.3.0, "") = 3,
154   CURLSSLBACKEND_OBSOLETE4 = 4,  /* Was QSOSSL. */
155   CURLSSLBACKEND_GSKIT                  CURL_DEPRECATED(8.3.0, "") = 5,
156   CURLSSLBACKEND_POLARSSL               CURL_DEPRECATED(7.69.0, "") = 6,
157   CURLSSLBACKEND_WOLFSSL = 7,
158   CURLSSLBACKEND_SCHANNEL = 8,
159   CURLSSLBACKEND_SECURETRANSPORT = 9,
160   CURLSSLBACKEND_AXTLS                  CURL_DEPRECATED(7.61.0, "") = 10,
161   CURLSSLBACKEND_MBEDTLS = 11,
162   CURLSSLBACKEND_MESALINK               CURL_DEPRECATED(7.82.0, "") = 12,
163   CURLSSLBACKEND_BEARSSL = 13,
164   CURLSSLBACKEND_RUSTLS = 14
165 } curl_sslbackend;
166 
167 /* aliases for library clones and renames */
168 #define CURLSSLBACKEND_AWSLC CURLSSLBACKEND_OPENSSL
169 #define CURLSSLBACKEND_BORINGSSL CURLSSLBACKEND_OPENSSL
170 #define CURLSSLBACKEND_LIBRESSL CURLSSLBACKEND_OPENSSL
171 
172 /* deprecated names: */
173 #define CURLSSLBACKEND_CYASSL CURLSSLBACKEND_WOLFSSL
174 #define CURLSSLBACKEND_DARWINSSL CURLSSLBACKEND_SECURETRANSPORT
175 
176 struct curl_httppost {
177   struct curl_httppost *next;       /* next entry in the list */
178   char *name;                       /* pointer to allocated name */
179   long namelength;                  /* length of name length */
180   char *contents;                   /* pointer to allocated data contents */
181   long contentslength;              /* length of contents field, see also
182                                        CURL_HTTPPOST_LARGE */
183   char *buffer;                     /* pointer to allocated buffer contents */
184   long bufferlength;                /* length of buffer field */
185   char *contenttype;                /* Content-Type */
186   struct curl_slist *contentheader; /* list of extra headers for this form */
187   struct curl_httppost *more;       /* if one field name has more than one
188                                        file, this link should link to following
189                                        files */
190   long flags;                       /* as defined below */
191 
192 /* specified content is a file name */
193 #define CURL_HTTPPOST_FILENAME (1<<0)
194 /* specified content is a file name */
195 #define CURL_HTTPPOST_READFILE (1<<1)
196 /* name is only stored pointer do not free in formfree */
197 #define CURL_HTTPPOST_PTRNAME (1<<2)
198 /* contents is only stored pointer do not free in formfree */
199 #define CURL_HTTPPOST_PTRCONTENTS (1<<3)
200 /* upload file from buffer */
201 #define CURL_HTTPPOST_BUFFER (1<<4)
202 /* upload file from pointer contents */
203 #define CURL_HTTPPOST_PTRBUFFER (1<<5)
204 /* upload file contents by using the regular read callback to get the data and
205    pass the given pointer as custom pointer */
206 #define CURL_HTTPPOST_CALLBACK (1<<6)
207 /* use size in 'contentlen', added in 7.46.0 */
208 #define CURL_HTTPPOST_LARGE (1<<7)
209 
210   char *showfilename;               /* The file name to show. If not set, the
211                                        actual file name will be used (if this
212                                        is a file part) */
213   void *userp;                      /* custom pointer used for
214                                        HTTPPOST_CALLBACK posts */
215   curl_off_t contentlen;            /* alternative length of contents
216                                        field. Used if CURL_HTTPPOST_LARGE is
217                                        set. Added in 7.46.0 */
218 };
219 
220 
221 /* This is a return code for the progress callback that, when returned, will
222    signal libcurl to continue executing the default progress function */
223 #define CURL_PROGRESSFUNC_CONTINUE 0x10000001
224 
225 /* This is the CURLOPT_PROGRESSFUNCTION callback prototype. It is now
226    considered deprecated but was the only choice up until 7.31.0 */
227 typedef int (*curl_progress_callback)(void *clientp,
228                                       double dltotal,
229                                       double dlnow,
230                                       double ultotal,
231                                       double ulnow);
232 
233 /* This is the CURLOPT_XFERINFOFUNCTION callback prototype. It was introduced
234    in 7.32.0, avoids the use of floating point numbers and provides more
235    detailed information. */
236 typedef int (*curl_xferinfo_callback)(void *clientp,
237                                       curl_off_t dltotal,
238                                       curl_off_t dlnow,
239                                       curl_off_t ultotal,
240                                       curl_off_t ulnow);
241 
242 #ifndef CURL_MAX_READ_SIZE
243   /* The maximum receive buffer size configurable via CURLOPT_BUFFERSIZE. */
244 #define CURL_MAX_READ_SIZE (10*1024*1024)
245 #endif
246 
247 #ifndef CURL_MAX_WRITE_SIZE
248   /* Tests have proven that 20K is a very bad buffer size for uploads on
249      Windows, while 16K for some odd reason performed a lot better.
250      We do the ifndef check to allow this value to easier be changed at build
251      time for those who feel adventurous. The practical minimum is about
252      400 bytes since libcurl uses a buffer of this size as a scratch area
253      (unrelated to network send operations). */
254 #define CURL_MAX_WRITE_SIZE 16384
255 #endif
256 
257 #ifndef CURL_MAX_HTTP_HEADER
258 /* The only reason to have a max limit for this is to avoid the risk of a bad
259    server feeding libcurl with a never-ending header that will cause reallocs
260    infinitely */
261 #define CURL_MAX_HTTP_HEADER (100*1024)
262 #endif
263 
264 /* This is a magic return code for the write callback that, when returned,
265    will signal libcurl to pause receiving on the current transfer. */
266 #define CURL_WRITEFUNC_PAUSE 0x10000001
267 
268 /* This is a magic return code for the write callback that, when returned,
269    will signal an error from the callback. */
270 #define CURL_WRITEFUNC_ERROR 0xFFFFFFFF
271 
272 typedef size_t (*curl_write_callback)(char *buffer,
273                                       size_t size,
274                                       size_t nitems,
275                                       void *outstream);
276 
277 /* This callback will be called when a new resolver request is made */
278 typedef int (*curl_resolver_start_callback)(void *resolver_state,
279                                             void *reserved, void *userdata);
280 
281 /* enumeration of file types */
282 typedef enum {
283   CURLFILETYPE_FILE = 0,
284   CURLFILETYPE_DIRECTORY,
285   CURLFILETYPE_SYMLINK,
286   CURLFILETYPE_DEVICE_BLOCK,
287   CURLFILETYPE_DEVICE_CHAR,
288   CURLFILETYPE_NAMEDPIPE,
289   CURLFILETYPE_SOCKET,
290   CURLFILETYPE_DOOR, /* is possible only on Sun Solaris now */
291 
292   CURLFILETYPE_UNKNOWN /* should never occur */
293 } curlfiletype;
294 
295 #define CURLFINFOFLAG_KNOWN_FILENAME    (1<<0)
296 #define CURLFINFOFLAG_KNOWN_FILETYPE    (1<<1)
297 #define CURLFINFOFLAG_KNOWN_TIME        (1<<2)
298 #define CURLFINFOFLAG_KNOWN_PERM        (1<<3)
299 #define CURLFINFOFLAG_KNOWN_UID         (1<<4)
300 #define CURLFINFOFLAG_KNOWN_GID         (1<<5)
301 #define CURLFINFOFLAG_KNOWN_SIZE        (1<<6)
302 #define CURLFINFOFLAG_KNOWN_HLINKCOUNT  (1<<7)
303 
304 /* Information about a single file, used when doing FTP wildcard matching */
305 struct curl_fileinfo {
306   char *filename;
307   curlfiletype filetype;
308   time_t time; /* always zero! */
309   unsigned int perm;
310   int uid;
311   int gid;
312   curl_off_t size;
313   long int hardlinks;
314 
315   struct {
316     /* If some of these fields is not NULL, it is a pointer to b_data. */
317     char *time;
318     char *perm;
319     char *user;
320     char *group;
321     char *target; /* pointer to the target filename of a symlink */
322   } strings;
323 
324   unsigned int flags;
325 
326   /* These are libcurl private struct fields. Previously used by libcurl, so
327      they must never be interfered with. */
328   char *b_data;
329   size_t b_size;
330   size_t b_used;
331 };
332 
333 /* return codes for CURLOPT_CHUNK_BGN_FUNCTION */
334 #define CURL_CHUNK_BGN_FUNC_OK      0
335 #define CURL_CHUNK_BGN_FUNC_FAIL    1 /* tell the lib to end the task */
336 #define CURL_CHUNK_BGN_FUNC_SKIP    2 /* skip this chunk over */
337 
338 /* if splitting of data transfer is enabled, this callback is called before
339    download of an individual chunk started. Note that parameter "remains" works
340    only for FTP wildcard downloading (for now), otherwise is not used */
341 typedef long (*curl_chunk_bgn_callback)(const void *transfer_info,
342                                         void *ptr,
343                                         int remains);
344 
345 /* return codes for CURLOPT_CHUNK_END_FUNCTION */
346 #define CURL_CHUNK_END_FUNC_OK      0
347 #define CURL_CHUNK_END_FUNC_FAIL    1 /* tell the lib to end the task */
348 
349 /* If splitting of data transfer is enabled this callback is called after
350    download of an individual chunk finished.
351    Note! After this callback was set then it have to be called FOR ALL chunks.
352    Even if downloading of this chunk was skipped in CHUNK_BGN_FUNC.
353    This is the reason why we don't need "transfer_info" parameter in this
354    callback and we are not interested in "remains" parameter too. */
355 typedef long (*curl_chunk_end_callback)(void *ptr);
356 
357 /* return codes for FNMATCHFUNCTION */
358 #define CURL_FNMATCHFUNC_MATCH    0 /* string corresponds to the pattern */
359 #define CURL_FNMATCHFUNC_NOMATCH  1 /* pattern doesn't match the string */
360 #define CURL_FNMATCHFUNC_FAIL     2 /* an error occurred */
361 
362 /* callback type for wildcard downloading pattern matching. If the
363    string matches the pattern, return CURL_FNMATCHFUNC_MATCH value, etc. */
364 typedef int (*curl_fnmatch_callback)(void *ptr,
365                                      const char *pattern,
366                                      const char *string);
367 
368 /* These are the return codes for the seek callbacks */
369 #define CURL_SEEKFUNC_OK       0
370 #define CURL_SEEKFUNC_FAIL     1 /* fail the entire transfer */
371 #define CURL_SEEKFUNC_CANTSEEK 2 /* tell libcurl seeking can't be done, so
372                                     libcurl might try other means instead */
373 typedef int (*curl_seek_callback)(void *instream,
374                                   curl_off_t offset,
375                                   int origin); /* 'whence' */
376 
377 /* This is a return code for the read callback that, when returned, will
378    signal libcurl to immediately abort the current transfer. */
379 #define CURL_READFUNC_ABORT 0x10000000
380 #define CURL_MAX_SSL_ERR_LEN 512
381 #define CURL_MAX_CIPHER_NUM 512
382 /* This is a return code for the read callback that, when returned, will
383    signal libcurl to pause sending data on the current transfer. */
384 #define CURL_READFUNC_PAUSE 0x10000001
385 
386 /* Return code for when the trailing headers' callback has terminated
387    without any errors */
388 #define CURL_TRAILERFUNC_OK 0
389 /* Return code for when was an error in the trailing header's list and we
390   want to abort the request */
391 #define CURL_TRAILERFUNC_ABORT 1
392 
393 typedef size_t (*curl_read_callback)(char *buffer,
394                                       size_t size,
395                                       size_t nitems,
396                                       void *instream);
397 
398 typedef int (*curl_trailer_callback)(struct curl_slist **list,
399                                       void *userdata);
400 
401 typedef enum {
402   CURLSOCKTYPE_IPCXN,  /* socket created for a specific IP connection */
403   CURLSOCKTYPE_ACCEPT, /* socket created by accept() call */
404   CURLSOCKTYPE_LAST    /* never use */
405 } curlsocktype;
406 
407 /* The return code from the sockopt_callback can signal information back
408    to libcurl: */
409 #define CURL_SOCKOPT_OK 0
410 #define CURL_SOCKOPT_ERROR 1 /* causes libcurl to abort and return
411                                 CURLE_ABORTED_BY_CALLBACK */
412 #define CURL_SOCKOPT_ALREADY_CONNECTED 2
413 
414 typedef int (*curl_sockopt_callback)(void *clientp,
415                                      curl_socket_t curlfd,
416                                      curlsocktype purpose);
417 #ifdef HTTP_HANDOVER_FEATURE
418 typedef bool (*curl_connreuse_callback)(void *userdata, curl_socket_t curlfd);
419 #endif
420 
421 struct curl_sockaddr {
422   int family;
423   int socktype;
424   int protocol;
425   unsigned int addrlen; /* addrlen was a socklen_t type before 7.18.0 but it
426                            turned really ugly and painful on the systems that
427                            lack this type */
428   struct sockaddr addr;
429 };
430 
431 typedef curl_socket_t
432 (*curl_opensocket_callback)(void *clientp,
433                             curlsocktype purpose,
434                             struct curl_sockaddr *address);
435 
436 typedef int
437 (*curl_closesocket_callback)(void *clientp, curl_socket_t item);
438 
439 typedef enum {
440   CURLIOE_OK,            /* I/O operation successful */
441   CURLIOE_UNKNOWNCMD,    /* command was unknown to callback */
442   CURLIOE_FAILRESTART,   /* failed to restart the read */
443   CURLIOE_LAST           /* never use */
444 } curlioerr;
445 
446 typedef enum {
447   CURLIOCMD_NOP,         /* no operation */
448   CURLIOCMD_RESTARTREAD, /* restart the read stream from start */
449   CURLIOCMD_LAST         /* never use */
450 } curliocmd;
451 
452 typedef curlioerr (*curl_ioctl_callback)(CURL *handle,
453                                          int cmd,
454                                          void *clientp);
455 
456 #ifndef CURL_DID_MEMORY_FUNC_TYPEDEFS
457 /*
458  * The following typedef's are signatures of malloc, free, realloc, strdup and
459  * calloc respectively.  Function pointers of these types can be passed to the
460  * curl_global_init_mem() function to set user defined memory management
461  * callback routines.
462  */
463 typedef void *(*curl_malloc_callback)(size_t size);
464 typedef void (*curl_free_callback)(void *ptr);
465 typedef void *(*curl_realloc_callback)(void *ptr, size_t size);
466 typedef char *(*curl_strdup_callback)(const char *str);
467 typedef void *(*curl_calloc_callback)(size_t nmemb, size_t size);
468 
469 #define CURL_DID_MEMORY_FUNC_TYPEDEFS
470 #endif
471 
472 /* the kind of data that is passed to information_callback */
473 typedef enum {
474   CURLINFO_TEXT = 0,
475   CURLINFO_HEADER_IN,    /* 1 */
476   CURLINFO_HEADER_OUT,   /* 2 */
477   CURLINFO_DATA_IN,      /* 3 */
478   CURLINFO_DATA_OUT,     /* 4 */
479   CURLINFO_SSL_DATA_IN,  /* 5 */
480   CURLINFO_SSL_DATA_OUT, /* 6 */
481   CURLINFO_STATE,        /* 7 */
482   CURLINFO_END
483 } curl_infotype;
484 
485 typedef int (*curl_debug_callback)
486        (CURL *handle,      /* the handle/transfer this concerns */
487         curl_infotype type, /* what kind of data */
488         char *data,        /* points to the data */
489         size_t size,       /* size of the data pointed to */
490         void *userptr);    /* whatever the user please */
491 
492 /* This is the CURLOPT_PREREQFUNCTION callback prototype. */
493 typedef int (*curl_prereq_callback)(void *clientp,
494                                     char *conn_primary_ip,
495                                     char *conn_local_ip,
496                                     int conn_primary_port,
497                                     int conn_local_port);
498 
499 /* Return code for when the pre-request callback has terminated without
500    any errors */
501 #define CURL_PREREQFUNC_OK 0
502 /* Return code for when the pre-request callback wants to abort the
503    request */
504 #define CURL_PREREQFUNC_ABORT 1
505 
506 /* All possible error codes from all sorts of curl functions. Future versions
507    may return other values, stay prepared.
508 
509    Always add new return codes last. Never *EVER* remove any. The return
510    codes must remain the same!
511  */
512 
513 typedef enum {
514   CURLE_OK = 0,
515   CURLE_UNSUPPORTED_PROTOCOL,    /* 1 */
516   CURLE_FAILED_INIT,             /* 2 */
517   CURLE_URL_MALFORMAT,           /* 3 */
518   CURLE_NOT_BUILT_IN,            /* 4 - [was obsoleted in August 2007 for
519                                     7.17.0, reused in April 2011 for 7.21.5] */
520   CURLE_COULDNT_RESOLVE_PROXY,   /* 5 */
521   CURLE_COULDNT_RESOLVE_HOST,    /* 6 */
522   CURLE_COULDNT_CONNECT,         /* 7 */
523   CURLE_WEIRD_SERVER_REPLY,      /* 8 */
524   CURLE_REMOTE_ACCESS_DENIED,    /* 9 a service was denied by the server
525                                     due to lack of access - when login fails
526                                     this is not returned. */
527   CURLE_FTP_ACCEPT_FAILED,       /* 10 - [was obsoleted in April 2006 for
528                                     7.15.4, reused in Dec 2011 for 7.24.0]*/
529   CURLE_FTP_WEIRD_PASS_REPLY,    /* 11 */
530   CURLE_FTP_ACCEPT_TIMEOUT,      /* 12 - timeout occurred accepting server
531                                     [was obsoleted in August 2007 for 7.17.0,
532                                     reused in Dec 2011 for 7.24.0]*/
533   CURLE_FTP_WEIRD_PASV_REPLY,    /* 13 */
534   CURLE_FTP_WEIRD_227_FORMAT,    /* 14 */
535   CURLE_FTP_CANT_GET_HOST,       /* 15 */
536   CURLE_HTTP2,                   /* 16 - A problem in the http2 framing layer.
537                                     [was obsoleted in August 2007 for 7.17.0,
538                                     reused in July 2014 for 7.38.0] */
539   CURLE_FTP_COULDNT_SET_TYPE,    /* 17 */
540   CURLE_PARTIAL_FILE,            /* 18 */
541   CURLE_FTP_COULDNT_RETR_FILE,   /* 19 */
542   CURLE_OBSOLETE20,              /* 20 - NOT USED */
543   CURLE_QUOTE_ERROR,             /* 21 - quote command failure */
544   CURLE_HTTP_RETURNED_ERROR,     /* 22 */
545   CURLE_WRITE_ERROR,             /* 23 */
546   CURLE_OBSOLETE24,              /* 24 - NOT USED */
547   CURLE_UPLOAD_FAILED,           /* 25 - failed upload "command" */
548   CURLE_READ_ERROR,              /* 26 - couldn't open/read from file */
549   CURLE_OUT_OF_MEMORY,           /* 27 */
550   CURLE_OPERATION_TIMEDOUT,      /* 28 - the timeout time was reached */
551   CURLE_OBSOLETE29,              /* 29 - NOT USED */
552   CURLE_FTP_PORT_FAILED,         /* 30 - FTP PORT operation failed */
553   CURLE_FTP_COULDNT_USE_REST,    /* 31 - the REST command failed */
554   CURLE_OBSOLETE32,              /* 32 - NOT USED */
555   CURLE_RANGE_ERROR,             /* 33 - RANGE "command" didn't work */
556   CURLE_HTTP_POST_ERROR,         /* 34 */
557   CURLE_SSL_CONNECT_ERROR,       /* 35 - wrong when connecting with SSL */
558   CURLE_BAD_DOWNLOAD_RESUME,     /* 36 - couldn't resume download */
559   CURLE_FILE_COULDNT_READ_FILE,  /* 37 */
560   CURLE_LDAP_CANNOT_BIND,        /* 38 */
561   CURLE_LDAP_SEARCH_FAILED,      /* 39 */
562   CURLE_OBSOLETE40,              /* 40 - NOT USED */
563   CURLE_FUNCTION_NOT_FOUND,      /* 41 - NOT USED starting with 7.53.0 */
564   CURLE_ABORTED_BY_CALLBACK,     /* 42 */
565   CURLE_BAD_FUNCTION_ARGUMENT,   /* 43 */
566   CURLE_OBSOLETE44,              /* 44 - NOT USED */
567   CURLE_INTERFACE_FAILED,        /* 45 - CURLOPT_INTERFACE failed */
568   CURLE_OBSOLETE46,              /* 46 - NOT USED */
569   CURLE_TOO_MANY_REDIRECTS,      /* 47 - catch endless re-direct loops */
570   CURLE_UNKNOWN_OPTION,          /* 48 - User specified an unknown option */
571   CURLE_SETOPT_OPTION_SYNTAX,    /* 49 - Malformed setopt option */
572   CURLE_OBSOLETE50,              /* 50 - NOT USED */
573   CURLE_OBSOLETE51,              /* 51 - NOT USED */
574   CURLE_GOT_NOTHING,             /* 52 - when this is a specific error */
575   CURLE_SSL_ENGINE_NOTFOUND,     /* 53 - SSL crypto engine not found */
576   CURLE_SSL_ENGINE_SETFAILED,    /* 54 - can not set SSL crypto engine as
577                                     default */
578   CURLE_SEND_ERROR,              /* 55 - failed sending network data */
579   CURLE_RECV_ERROR,              /* 56 - failure in receiving network data */
580   CURLE_OBSOLETE57,              /* 57 - NOT IN USE */
581   CURLE_SSL_CERTPROBLEM,         /* 58 - problem with the local certificate */
582   CURLE_SSL_CIPHER,              /* 59 - couldn't use specified cipher */
583   CURLE_PEER_FAILED_VERIFICATION, /* 60 - peer's certificate or fingerprint
584                                      wasn't verified fine */
585   CURLE_BAD_CONTENT_ENCODING,    /* 61 - Unrecognized/bad encoding */
586   CURLE_OBSOLETE62,              /* 62 - NOT IN USE since 7.82.0 */
587   CURLE_FILESIZE_EXCEEDED,       /* 63 - Maximum file size exceeded */
588   CURLE_USE_SSL_FAILED,          /* 64 - Requested FTP SSL level failed */
589   CURLE_SEND_FAIL_REWIND,        /* 65 - Sending the data requires a rewind
590                                     that failed */
591   CURLE_SSL_ENGINE_INITFAILED,   /* 66 - failed to initialise ENGINE */
592   CURLE_LOGIN_DENIED,            /* 67 - user, password or similar was not
593                                     accepted and we failed to login */
594   CURLE_TFTP_NOTFOUND,           /* 68 - file not found on server */
595   CURLE_TFTP_PERM,               /* 69 - permission problem on server */
596   CURLE_REMOTE_DISK_FULL,        /* 70 - out of disk space on server */
597   CURLE_TFTP_ILLEGAL,            /* 71 - Illegal TFTP operation */
598   CURLE_TFTP_UNKNOWNID,          /* 72 - Unknown transfer ID */
599   CURLE_REMOTE_FILE_EXISTS,      /* 73 - File already exists */
600   CURLE_TFTP_NOSUCHUSER,         /* 74 - No such user */
601   CURLE_OBSOLETE75,              /* 75 - NOT IN USE since 7.82.0 */
602   CURLE_OBSOLETE76,              /* 76 - NOT IN USE since 7.82.0 */
603   CURLE_SSL_CACERT_BADFILE,      /* 77 - could not load CACERT file, missing
604                                     or wrong format */
605   CURLE_REMOTE_FILE_NOT_FOUND,   /* 78 - remote file not found */
606   CURLE_SSH,                     /* 79 - error from the SSH layer, somewhat
607                                     generic so the error message will be of
608                                     interest when this has happened */
609 
610   CURLE_SSL_SHUTDOWN_FAILED,     /* 80 - Failed to shut down the SSL
611                                     connection */
612   CURLE_AGAIN,                   /* 81 - socket is not ready for send/recv,
613                                     wait till it's ready and try again (Added
614                                     in 7.18.2) */
615   CURLE_SSL_CRL_BADFILE,         /* 82 - could not load CRL file, missing or
616                                     wrong format (Added in 7.19.0) */
617   CURLE_SSL_ISSUER_ERROR,        /* 83 - Issuer check failed.  (Added in
618                                     7.19.0) */
619   CURLE_FTP_PRET_FAILED,         /* 84 - a PRET command failed */
620   CURLE_RTSP_CSEQ_ERROR,         /* 85 - mismatch of RTSP CSeq numbers */
621   CURLE_RTSP_SESSION_ERROR,      /* 86 - mismatch of RTSP Session Ids */
622   CURLE_FTP_BAD_FILE_LIST,       /* 87 - unable to parse FTP file list */
623   CURLE_CHUNK_FAILED,            /* 88 - chunk callback reported error */
624   CURLE_NO_CONNECTION_AVAILABLE, /* 89 - No connection available, the
625                                     session will be queued */
626   CURLE_SSL_PINNEDPUBKEYNOTMATCH, /* 90 - specified pinned public key did not
627                                      match */
628   CURLE_SSL_INVALIDCERTSTATUS,   /* 91 - invalid certificate status */
629   CURLE_HTTP2_STREAM,            /* 92 - stream error in HTTP/2 framing layer
630                                     */
631   CURLE_RECURSIVE_API_CALL,      /* 93 - an api function was called from
632                                     inside a callback */
633   CURLE_AUTH_ERROR,              /* 94 - an authentication function returned an
634                                     error */
635   CURLE_HTTP3,                   /* 95 - An HTTP/3 layer problem */
636   CURLE_QUIC_CONNECT_ERROR,      /* 96 - QUIC connection error */
637   CURLE_PROXY,                   /* 97 - proxy handshake error */
638   CURLE_SSL_CLIENTCERT,          /* 98 - client-side certificate required */
639   CURLE_UNRECOVERABLE_POLL,      /* 99 - poll/select returned fatal error */
640   CURLE_TOO_LARGE,               /* 100 - a value/data met its maximum */
641   CURLE_ECH_REQUIRED,            /* 101 - ECH tried but failed */
642   CURL_LAST /* never use! */
643 } CURLcode;
644 
645 #ifndef CURL_NO_OLDIES /* define this to test if your app builds with all
646                           the obsolete stuff removed! */
647 
648 /* Previously obsolete error code reused in 7.38.0 */
649 #define CURLE_OBSOLETE16 CURLE_HTTP2
650 
651 /* Previously obsolete error codes reused in 7.24.0 */
652 #define CURLE_OBSOLETE10 CURLE_FTP_ACCEPT_FAILED
653 #define CURLE_OBSOLETE12 CURLE_FTP_ACCEPT_TIMEOUT
654 
655 /*  compatibility with older names */
656 #define CURLOPT_ENCODING CURLOPT_ACCEPT_ENCODING
657 #define CURLE_FTP_WEIRD_SERVER_REPLY CURLE_WEIRD_SERVER_REPLY
658 
659 /* The following were added in 7.62.0 */
660 #define CURLE_SSL_CACERT CURLE_PEER_FAILED_VERIFICATION
661 
662 /* The following were added in 7.21.5, April 2011 */
663 #define CURLE_UNKNOWN_TELNET_OPTION CURLE_UNKNOWN_OPTION
664 
665 /* Added for 7.78.0 */
666 #define CURLE_TELNET_OPTION_SYNTAX CURLE_SETOPT_OPTION_SYNTAX
667 
668 /* The following were added in 7.17.1 */
669 /* These are scheduled to disappear by 2009 */
670 #define CURLE_SSL_PEER_CERTIFICATE CURLE_PEER_FAILED_VERIFICATION
671 
672 /* The following were added in 7.17.0 */
673 /* These are scheduled to disappear by 2009 */
674 #define CURLE_OBSOLETE CURLE_OBSOLETE50 /* no one should be using this! */
675 #define CURLE_BAD_PASSWORD_ENTERED CURLE_OBSOLETE46
676 #define CURLE_BAD_CALLING_ORDER CURLE_OBSOLETE44
677 #define CURLE_FTP_USER_PASSWORD_INCORRECT CURLE_OBSOLETE10
678 #define CURLE_FTP_CANT_RECONNECT CURLE_OBSOLETE16
679 #define CURLE_FTP_COULDNT_GET_SIZE CURLE_OBSOLETE32
680 #define CURLE_FTP_COULDNT_SET_ASCII CURLE_OBSOLETE29
681 #define CURLE_FTP_WEIRD_USER_REPLY CURLE_OBSOLETE12
682 #define CURLE_FTP_WRITE_ERROR CURLE_OBSOLETE20
683 #define CURLE_LIBRARY_NOT_FOUND CURLE_OBSOLETE40
684 #define CURLE_MALFORMAT_USER CURLE_OBSOLETE24
685 #define CURLE_SHARE_IN_USE CURLE_OBSOLETE57
686 #define CURLE_URL_MALFORMAT_USER CURLE_NOT_BUILT_IN
687 
688 #define CURLE_FTP_ACCESS_DENIED CURLE_REMOTE_ACCESS_DENIED
689 #define CURLE_FTP_COULDNT_SET_BINARY CURLE_FTP_COULDNT_SET_TYPE
690 #define CURLE_FTP_QUOTE_ERROR CURLE_QUOTE_ERROR
691 #define CURLE_TFTP_DISKFULL CURLE_REMOTE_DISK_FULL
692 #define CURLE_TFTP_EXISTS CURLE_REMOTE_FILE_EXISTS
693 #define CURLE_HTTP_RANGE_ERROR CURLE_RANGE_ERROR
694 #define CURLE_FTP_SSL_FAILED CURLE_USE_SSL_FAILED
695 
696 /* The following were added earlier */
697 
698 #define CURLE_OPERATION_TIMEOUTED CURLE_OPERATION_TIMEDOUT
699 #define CURLE_HTTP_NOT_FOUND CURLE_HTTP_RETURNED_ERROR
700 #define CURLE_HTTP_PORT_FAILED CURLE_INTERFACE_FAILED
701 #define CURLE_FTP_COULDNT_STOR_FILE CURLE_UPLOAD_FAILED
702 #define CURLE_FTP_PARTIAL_FILE CURLE_PARTIAL_FILE
703 #define CURLE_FTP_BAD_DOWNLOAD_RESUME CURLE_BAD_DOWNLOAD_RESUME
704 #define CURLE_LDAP_INVALID_URL CURLE_OBSOLETE62
705 #define CURLE_CONV_REQD CURLE_OBSOLETE76
706 #define CURLE_CONV_FAILED CURLE_OBSOLETE75
707 
708 /* This was the error code 50 in 7.7.3 and a few earlier versions, this
709    is no longer used by libcurl but is instead #defined here only to not
710    make programs break */
711 #define CURLE_ALREADY_COMPLETE 99999
712 
713 /* Provide defines for really old option names */
714 #define CURLOPT_FILE CURLOPT_WRITEDATA /* name changed in 7.9.7 */
715 #define CURLOPT_INFILE CURLOPT_READDATA /* name changed in 7.9.7 */
716 #define CURLOPT_WRITEHEADER CURLOPT_HEADERDATA
717 
718 /* Since long deprecated options with no code in the lib that does anything
719    with them. */
720 #define CURLOPT_WRITEINFO CURLOPT_OBSOLETE40
721 #define CURLOPT_CLOSEPOLICY CURLOPT_OBSOLETE72
722 
723 #endif /* !CURL_NO_OLDIES */
724 
725 /*
726  * Proxy error codes. Returned in CURLINFO_PROXY_ERROR if CURLE_PROXY was
727  * return for the transfers.
728  */
729 typedef enum {
730   CURLPX_OK,
731   CURLPX_BAD_ADDRESS_TYPE,
732   CURLPX_BAD_VERSION,
733   CURLPX_CLOSED,
734   CURLPX_GSSAPI,
735   CURLPX_GSSAPI_PERMSG,
736   CURLPX_GSSAPI_PROTECTION,
737   CURLPX_IDENTD,
738   CURLPX_IDENTD_DIFFER,
739   CURLPX_LONG_HOSTNAME,
740   CURLPX_LONG_PASSWD,
741   CURLPX_LONG_USER,
742   CURLPX_NO_AUTH,
743   CURLPX_RECV_ADDRESS,
744   CURLPX_RECV_AUTH,
745   CURLPX_RECV_CONNECT,
746   CURLPX_RECV_REQACK,
747   CURLPX_REPLY_ADDRESS_TYPE_NOT_SUPPORTED,
748   CURLPX_REPLY_COMMAND_NOT_SUPPORTED,
749   CURLPX_REPLY_CONNECTION_REFUSED,
750   CURLPX_REPLY_GENERAL_SERVER_FAILURE,
751   CURLPX_REPLY_HOST_UNREACHABLE,
752   CURLPX_REPLY_NETWORK_UNREACHABLE,
753   CURLPX_REPLY_NOT_ALLOWED,
754   CURLPX_REPLY_TTL_EXPIRED,
755   CURLPX_REPLY_UNASSIGNED,
756   CURLPX_REQUEST_FAILED,
757   CURLPX_RESOLVE_HOST,
758   CURLPX_SEND_AUTH,
759   CURLPX_SEND_CONNECT,
760   CURLPX_SEND_REQUEST,
761   CURLPX_UNKNOWN_FAIL,
762   CURLPX_UNKNOWN_MODE,
763   CURLPX_USER_REJECTED,
764   CURLPX_LAST /* never use */
765 } CURLproxycode;
766 
767 /* This prototype applies to all conversion callbacks */
768 typedef CURLcode (*curl_conv_callback)(char *buffer, size_t length);
769 
770 typedef CURLcode (*curl_ssl_ctx_callback)(CURL *curl,    /* easy handle */
771                                           void *ssl_ctx, /* actually an OpenSSL
772                                                             or WolfSSL SSL_CTX,
773                                                             or an mbedTLS
774                                                           mbedtls_ssl_config */
775                                           void *userptr);
776 
777 typedef enum {
778   CURLPROXY_HTTP = 0,   /* added in 7.10, new in 7.19.4 default is to use
779                            CONNECT HTTP/1.1 */
780   CURLPROXY_HTTP_1_0 = 1,   /* added in 7.19.4, force to use CONNECT
781                                HTTP/1.0  */
782   CURLPROXY_HTTPS = 2,  /* HTTPS but stick to HTTP/1 added in 7.52.0 */
783   CURLPROXY_HTTPS2 = 3, /* HTTPS and attempt HTTP/2 added in 8.2.0 */
784   CURLPROXY_SOCKS4 = 4, /* support added in 7.15.2, enum existed already
785                            in 7.10 */
786   CURLPROXY_SOCKS5 = 5, /* added in 7.10 */
787   CURLPROXY_SOCKS4A = 6, /* added in 7.18.0 */
788   CURLPROXY_SOCKS5_HOSTNAME = 7 /* Use the SOCKS5 protocol but pass along the
789                                    host name rather than the IP address. added
790                                    in 7.18.0 */
791 } curl_proxytype;  /* this enum was added in 7.10 */
792 
793 /*
794  * Bitmasks for CURLOPT_HTTPAUTH and CURLOPT_PROXYAUTH options:
795  *
796  * CURLAUTH_NONE         - No HTTP authentication
797  * CURLAUTH_BASIC        - HTTP Basic authentication (default)
798  * CURLAUTH_DIGEST       - HTTP Digest authentication
799  * CURLAUTH_NEGOTIATE    - HTTP Negotiate (SPNEGO) authentication
800  * CURLAUTH_GSSNEGOTIATE - Alias for CURLAUTH_NEGOTIATE (deprecated)
801  * CURLAUTH_NTLM         - HTTP NTLM authentication
802  * CURLAUTH_DIGEST_IE    - HTTP Digest authentication with IE flavour
803  * CURLAUTH_NTLM_WB      - HTTP NTLM authentication delegated to winbind helper
804  * CURLAUTH_BEARER       - HTTP Bearer token authentication
805  * CURLAUTH_ONLY         - Use together with a single other type to force no
806  *                         authentication or just that single type
807  * CURLAUTH_ANY          - All fine types set
808  * CURLAUTH_ANYSAFE      - All fine types except Basic
809  */
810 
811 #define CURLAUTH_NONE         ((unsigned long)0)
812 #define CURLAUTH_BASIC        (((unsigned long)1)<<0)
813 #define CURLAUTH_DIGEST       (((unsigned long)1)<<1)
814 #define CURLAUTH_NEGOTIATE    (((unsigned long)1)<<2)
815 /* Deprecated since the advent of CURLAUTH_NEGOTIATE */
816 #define CURLAUTH_GSSNEGOTIATE CURLAUTH_NEGOTIATE
817 /* Used for CURLOPT_SOCKS5_AUTH to stay terminologically correct */
818 #define CURLAUTH_GSSAPI CURLAUTH_NEGOTIATE
819 #define CURLAUTH_NTLM         (((unsigned long)1)<<3)
820 #define CURLAUTH_DIGEST_IE    (((unsigned long)1)<<4)
821 #ifndef CURL_NO_OLDIES
822   /* functionality removed since 8.8.0 */
823 #define CURLAUTH_NTLM_WB      (((unsigned long)1)<<5)
824 #endif
825 #define CURLAUTH_BEARER       (((unsigned long)1)<<6)
826 #define CURLAUTH_AWS_SIGV4    (((unsigned long)1)<<7)
827 #define CURLAUTH_ONLY         (((unsigned long)1)<<31)
828 #define CURLAUTH_ANY          (~CURLAUTH_DIGEST_IE)
829 #define CURLAUTH_ANYSAFE      (~(CURLAUTH_BASIC|CURLAUTH_DIGEST_IE))
830 
831 #define CURLSSH_AUTH_ANY       ~0     /* all types supported by the server */
832 #define CURLSSH_AUTH_NONE      0      /* none allowed, silly but complete */
833 #define CURLSSH_AUTH_PUBLICKEY (1<<0) /* public/private key files */
834 #define CURLSSH_AUTH_PASSWORD  (1<<1) /* password */
835 #define CURLSSH_AUTH_HOST      (1<<2) /* host key files */
836 #define CURLSSH_AUTH_KEYBOARD  (1<<3) /* keyboard interactive */
837 #define CURLSSH_AUTH_AGENT     (1<<4) /* agent (ssh-agent, pageant...) */
838 #define CURLSSH_AUTH_GSSAPI    (1<<5) /* gssapi (kerberos, ...) */
839 #define CURLSSH_AUTH_DEFAULT CURLSSH_AUTH_ANY
840 
841 #define CURLGSSAPI_DELEGATION_NONE        0      /* no delegation (default) */
842 #define CURLGSSAPI_DELEGATION_POLICY_FLAG (1<<0) /* if permitted by policy */
843 #define CURLGSSAPI_DELEGATION_FLAG        (1<<1) /* delegate always */
844 
845 #define CURL_ERROR_SIZE 256
846 
847 enum curl_khtype {
848   CURLKHTYPE_UNKNOWN,
849   CURLKHTYPE_RSA1,
850   CURLKHTYPE_RSA,
851   CURLKHTYPE_DSS,
852   CURLKHTYPE_ECDSA,
853   CURLKHTYPE_ED25519
854 };
855 
856 struct curl_khkey {
857   const char *key; /* points to a null-terminated string encoded with base64
858                       if len is zero, otherwise to the "raw" data */
859   size_t len;
860   enum curl_khtype keytype;
861 };
862 
863 /* this is the set of return values expected from the curl_sshkeycallback
864    callback */
865 enum curl_khstat {
866   CURLKHSTAT_FINE_ADD_TO_FILE,
867   CURLKHSTAT_FINE,
868   CURLKHSTAT_REJECT, /* reject the connection, return an error */
869   CURLKHSTAT_DEFER,  /* do not accept it, but we can't answer right now.
870                         Causes a CURLE_PEER_FAILED_VERIFICATION error but the
871                         connection will be left intact etc */
872   CURLKHSTAT_FINE_REPLACE, /* accept and replace the wrong key */
873   CURLKHSTAT_LAST    /* not for use, only a marker for last-in-list */
874 };
875 
876 /* this is the set of status codes pass in to the callback */
877 enum curl_khmatch {
878   CURLKHMATCH_OK,       /* match */
879   CURLKHMATCH_MISMATCH, /* host found, key mismatch! */
880   CURLKHMATCH_MISSING,  /* no matching host/key found */
881   CURLKHMATCH_LAST      /* not for use, only a marker for last-in-list */
882 };
883 
884 typedef int
885   (*curl_sshkeycallback) (CURL *easy,     /* easy handle */
886                           const struct curl_khkey *knownkey, /* known */
887                           const struct curl_khkey *foundkey, /* found */
888                           enum curl_khmatch, /* libcurl's view on the keys */
889                           void *clientp); /* custom pointer passed with */
890                                           /* CURLOPT_SSH_KEYDATA */
891 
892 typedef int
893   (*curl_sshhostkeycallback) (void *clientp,/* custom pointer passed */
894                                             /* with CURLOPT_SSH_HOSTKEYDATA */
895                           int keytype, /* CURLKHTYPE */
896                           const char *key, /* hostkey to check */
897                           size_t keylen); /* length of the key */
898                           /* return CURLE_OK to accept */
899                           /* or something else to refuse */
900 
901 
902 /* parameter for the CURLOPT_USE_SSL option */
903 typedef enum {
904   CURLUSESSL_NONE,    /* do not attempt to use SSL */
905   CURLUSESSL_TRY,     /* try using SSL, proceed anyway otherwise */
906   CURLUSESSL_CONTROL, /* SSL for the control connection or fail */
907   CURLUSESSL_ALL,     /* SSL for all communication or fail */
908   CURLUSESSL_LAST     /* not an option, never use */
909 } curl_usessl;
910 
911 /* Definition of bits for the CURLOPT_SSL_OPTIONS argument: */
912 
913 /* - ALLOW_BEAST tells libcurl to allow the BEAST SSL vulnerability in the
914    name of improving interoperability with older servers. Some SSL libraries
915    have introduced work-arounds for this flaw but those work-arounds sometimes
916    make the SSL communication fail. To regain functionality with those broken
917    servers, a user can this way allow the vulnerability back. */
918 #define CURLSSLOPT_ALLOW_BEAST (1<<0)
919 
920 /* - NO_REVOKE tells libcurl to disable certificate revocation checks for those
921    SSL backends where such behavior is present. */
922 #define CURLSSLOPT_NO_REVOKE (1<<1)
923 
924 /* - NO_PARTIALCHAIN tells libcurl to *NOT* accept a partial certificate chain
925    if possible. The OpenSSL backend has this ability. */
926 #define CURLSSLOPT_NO_PARTIALCHAIN (1<<2)
927 
928 /* - REVOKE_BEST_EFFORT tells libcurl to ignore certificate revocation offline
929    checks and ignore missing revocation list for those SSL backends where such
930    behavior is present. */
931 #define CURLSSLOPT_REVOKE_BEST_EFFORT (1<<3)
932 
933 /* - CURLSSLOPT_NATIVE_CA tells libcurl to use standard certificate store of
934    operating system. Currently implemented under MS-Windows. */
935 #define CURLSSLOPT_NATIVE_CA (1<<4)
936 
937 /* - CURLSSLOPT_AUTO_CLIENT_CERT tells libcurl to automatically locate and use
938    a client certificate for authentication. (Schannel) */
939 #define CURLSSLOPT_AUTO_CLIENT_CERT (1<<5)
940 
941 /* The default connection attempt delay in milliseconds for happy eyeballs.
942    CURLOPT_HAPPY_EYEBALLS_TIMEOUT_MS.3 and happy-eyeballs-timeout-ms.d document
943    this value, keep them in sync. */
944 #define CURL_HET_DEFAULT 200L
945 
946 /* The default connection upkeep interval in milliseconds. */
947 #define CURL_UPKEEP_INTERVAL_DEFAULT 60000L
948 
949 #ifndef CURL_NO_OLDIES /* define this to test if your app builds with all
950                           the obsolete stuff removed! */
951 
952 /* Backwards compatibility with older names */
953 /* These are scheduled to disappear by 2009 */
954 
955 #define CURLFTPSSL_NONE CURLUSESSL_NONE
956 #define CURLFTPSSL_TRY CURLUSESSL_TRY
957 #define CURLFTPSSL_CONTROL CURLUSESSL_CONTROL
958 #define CURLFTPSSL_ALL CURLUSESSL_ALL
959 #define CURLFTPSSL_LAST CURLUSESSL_LAST
960 #define curl_ftpssl curl_usessl
961 #endif /* !CURL_NO_OLDIES */
962 
963 /* parameter for the CURLOPT_FTP_SSL_CCC option */
964 typedef enum {
965   CURLFTPSSL_CCC_NONE,    /* do not send CCC */
966   CURLFTPSSL_CCC_PASSIVE, /* Let the server initiate the shutdown */
967   CURLFTPSSL_CCC_ACTIVE,  /* Initiate the shutdown */
968   CURLFTPSSL_CCC_LAST     /* not an option, never use */
969 } curl_ftpccc;
970 
971 /* parameter for the CURLOPT_FTPSSLAUTH option */
972 typedef enum {
973   CURLFTPAUTH_DEFAULT, /* let libcurl decide */
974   CURLFTPAUTH_SSL,     /* use "AUTH SSL" */
975   CURLFTPAUTH_TLS,     /* use "AUTH TLS" */
976   CURLFTPAUTH_LAST /* not an option, never use */
977 } curl_ftpauth;
978 
979 /* parameter for the CURLOPT_FTP_CREATE_MISSING_DIRS option */
980 typedef enum {
981   CURLFTP_CREATE_DIR_NONE,  /* do NOT create missing dirs! */
982   CURLFTP_CREATE_DIR,       /* (FTP/SFTP) if CWD fails, try MKD and then CWD
983                                again if MKD succeeded, for SFTP this does
984                                similar magic */
985   CURLFTP_CREATE_DIR_RETRY, /* (FTP only) if CWD fails, try MKD and then CWD
986                                again even if MKD failed! */
987   CURLFTP_CREATE_DIR_LAST   /* not an option, never use */
988 } curl_ftpcreatedir;
989 
990 /* parameter for the CURLOPT_FTP_FILEMETHOD option */
991 typedef enum {
992   CURLFTPMETHOD_DEFAULT,   /* let libcurl pick */
993   CURLFTPMETHOD_MULTICWD,  /* single CWD operation for each path part */
994   CURLFTPMETHOD_NOCWD,     /* no CWD at all */
995   CURLFTPMETHOD_SINGLECWD, /* one CWD to full dir, then work on file */
996   CURLFTPMETHOD_LAST       /* not an option, never use */
997 } curl_ftpmethod;
998 
999 /* bitmask defines for CURLOPT_HEADEROPT */
1000 #define CURLHEADER_UNIFIED  0
1001 #define CURLHEADER_SEPARATE (1<<0)
1002 
1003 /* CURLALTSVC_* are bits for the CURLOPT_ALTSVC_CTRL option */
1004 #define CURLALTSVC_READONLYFILE (1<<2)
1005 #define CURLALTSVC_H1           (1<<3)
1006 #define CURLALTSVC_H2           (1<<4)
1007 #define CURLALTSVC_H3           (1<<5)
1008 
1009 
1010 struct curl_hstsentry {
1011   char *name;
1012   size_t namelen;
1013   unsigned int includeSubDomains:1;
1014   char expire[18]; /* YYYYMMDD HH:MM:SS [null-terminated] */
1015 };
1016 
1017 struct curl_index {
1018   size_t index; /* the provided entry's "index" or count */
1019   size_t total; /* total number of entries to save */
1020 };
1021 
1022 typedef enum {
1023   CURLSTS_OK,
1024   CURLSTS_DONE,
1025   CURLSTS_FAIL
1026 } CURLSTScode;
1027 
1028 typedef CURLSTScode (*curl_hstsread_callback)(CURL *easy,
1029                                               struct curl_hstsentry *e,
1030                                               void *userp);
1031 typedef CURLSTScode (*curl_hstswrite_callback)(CURL *easy,
1032                                                struct curl_hstsentry *e,
1033                                                struct curl_index *i,
1034                                                void *userp);
1035 
1036 /* CURLHSTS_* are bits for the CURLOPT_HSTS option */
1037 #define CURLHSTS_ENABLE       (long)(1<<0)
1038 #define CURLHSTS_READONLYFILE (long)(1<<1)
1039 
1040 /* The CURLPROTO_ defines below are for the **deprecated** CURLOPT_*PROTOCOLS
1041    options. Do not use. */
1042 #define CURLPROTO_HTTP   (1<<0)
1043 #define CURLPROTO_HTTPS  (1<<1)
1044 #define CURLPROTO_FTP    (1<<2)
1045 #define CURLPROTO_FTPS   (1<<3)
1046 #define CURLPROTO_SCP    (1<<4)
1047 #define CURLPROTO_SFTP   (1<<5)
1048 #define CURLPROTO_TELNET (1<<6)
1049 #define CURLPROTO_LDAP   (1<<7)
1050 #define CURLPROTO_LDAPS  (1<<8)
1051 #define CURLPROTO_DICT   (1<<9)
1052 #define CURLPROTO_FILE   (1<<10)
1053 #define CURLPROTO_TFTP   (1<<11)
1054 #define CURLPROTO_IMAP   (1<<12)
1055 #define CURLPROTO_IMAPS  (1<<13)
1056 #define CURLPROTO_POP3   (1<<14)
1057 #define CURLPROTO_POP3S  (1<<15)
1058 #define CURLPROTO_SMTP   (1<<16)
1059 #define CURLPROTO_SMTPS  (1<<17)
1060 #define CURLPROTO_RTSP   (1<<18)
1061 #define CURLPROTO_RTMP   (1<<19)
1062 #define CURLPROTO_RTMPT  (1<<20)
1063 #define CURLPROTO_RTMPE  (1<<21)
1064 #define CURLPROTO_RTMPTE (1<<22)
1065 #define CURLPROTO_RTMPS  (1<<23)
1066 #define CURLPROTO_RTMPTS (1<<24)
1067 #define CURLPROTO_GOPHER (1<<25)
1068 #define CURLPROTO_SMB    (1<<26)
1069 #define CURLPROTO_SMBS   (1<<27)
1070 #define CURLPROTO_MQTT   (1<<28)
1071 #define CURLPROTO_GOPHERS (1<<29)
1072 #define CURLPROTO_ALL    (~0) /* enable everything */
1073 
1074 /* long may be 32 or 64 bits, but we should never depend on anything else
1075    but 32 */
1076 #define CURLOPTTYPE_LONG          0
1077 #define CURLOPTTYPE_OBJECTPOINT   10000
1078 #define CURLOPTTYPE_FUNCTIONPOINT 20000
1079 #define CURLOPTTYPE_OFF_T         30000
1080 #define CURLOPTTYPE_BLOB          40000
1081 
1082 /* *STRINGPOINT is an alias for OBJECTPOINT to allow tools to extract the
1083    string options from the header file */
1084 
1085 
1086 #define CURLOPT(na,t,nu) na = t + nu
1087 #define CURLOPTDEPRECATED(na,t,nu,v,m) na CURL_DEPRECATED(v,m) = t + nu
1088 
1089 /* CURLOPT aliases that make no run-time difference */
1090 
1091 /* 'char *' argument to a string with a trailing zero */
1092 #define CURLOPTTYPE_STRINGPOINT CURLOPTTYPE_OBJECTPOINT
1093 
1094 /* 'struct curl_slist *' argument */
1095 #define CURLOPTTYPE_SLISTPOINT  CURLOPTTYPE_OBJECTPOINT
1096 
1097 /* 'void *' argument passed untouched to callback */
1098 #define CURLOPTTYPE_CBPOINT     CURLOPTTYPE_OBJECTPOINT
1099 
1100 /* 'long' argument with a set of values/bitmask */
1101 #define CURLOPTTYPE_VALUES      CURLOPTTYPE_LONG
1102 
1103 /*
1104  * All CURLOPT_* values.
1105  */
1106 
1107 typedef enum {
1108   /* This is the FILE * or void * the regular output should be written to. */
1109   CURLOPT(CURLOPT_WRITEDATA, CURLOPTTYPE_CBPOINT, 1),
1110 
1111   /* The full URL to get/put */
1112   CURLOPT(CURLOPT_URL, CURLOPTTYPE_STRINGPOINT, 2),
1113 
1114   /* Port number to connect to, if other than default. */
1115   CURLOPT(CURLOPT_PORT, CURLOPTTYPE_LONG, 3),
1116 
1117   /* Name of proxy to use. */
1118   CURLOPT(CURLOPT_PROXY, CURLOPTTYPE_STRINGPOINT, 4),
1119 
1120   /* "user:password;options" to use when fetching. */
1121   CURLOPT(CURLOPT_USERPWD, CURLOPTTYPE_STRINGPOINT, 5),
1122 
1123   /* "user:password" to use with proxy. */
1124   CURLOPT(CURLOPT_PROXYUSERPWD, CURLOPTTYPE_STRINGPOINT, 6),
1125 
1126   /* Range to get, specified as an ASCII string. */
1127   CURLOPT(CURLOPT_RANGE, CURLOPTTYPE_STRINGPOINT, 7),
1128 
1129   /* not used */
1130 
1131   /* Specified file stream to upload from (use as input): */
1132   CURLOPT(CURLOPT_READDATA, CURLOPTTYPE_CBPOINT, 9),
1133 
1134   /* Buffer to receive error messages in, must be at least CURL_ERROR_SIZE
1135    * bytes big. */
1136   CURLOPT(CURLOPT_ERRORBUFFER, CURLOPTTYPE_OBJECTPOINT, 10),
1137 
1138   /* Function that will be called to store the output (instead of fwrite). The
1139    * parameters will use fwrite() syntax, make sure to follow them. */
1140   CURLOPT(CURLOPT_WRITEFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 11),
1141 
1142   /* Function that will be called to read the input (instead of fread). The
1143    * parameters will use fread() syntax, make sure to follow them. */
1144   CURLOPT(CURLOPT_READFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 12),
1145 
1146   /* Time-out the read operation after this amount of seconds */
1147   CURLOPT(CURLOPT_TIMEOUT, CURLOPTTYPE_LONG, 13),
1148 
1149   /* If CURLOPT_READDATA is used, this can be used to inform libcurl about
1150    * how large the file being sent really is. That allows better error
1151    * checking and better verifies that the upload was successful. -1 means
1152    * unknown size.
1153    *
1154    * For large file support, there is also a _LARGE version of the key
1155    * which takes an off_t type, allowing platforms with larger off_t
1156    * sizes to handle larger files.  See below for INFILESIZE_LARGE.
1157    */
1158   CURLOPT(CURLOPT_INFILESIZE, CURLOPTTYPE_LONG, 14),
1159 
1160   /* POST static input fields. */
1161   CURLOPT(CURLOPT_POSTFIELDS, CURLOPTTYPE_OBJECTPOINT, 15),
1162 
1163   /* Set the referrer page (needed by some CGIs) */
1164   CURLOPT(CURLOPT_REFERER, CURLOPTTYPE_STRINGPOINT, 16),
1165 
1166   /* Set the FTP PORT string (interface name, named or numerical IP address)
1167      Use i.e '-' to use default address. */
1168   CURLOPT(CURLOPT_FTPPORT, CURLOPTTYPE_STRINGPOINT, 17),
1169 
1170   /* Set the User-Agent string (examined by some CGIs) */
1171   CURLOPT(CURLOPT_USERAGENT, CURLOPTTYPE_STRINGPOINT, 18),
1172 
1173   /* If the download receives less than "low speed limit" bytes/second
1174    * during "low speed time" seconds, the operations is aborted.
1175    * You could i.e if you have a pretty high speed connection, abort if
1176    * it is less than 2000 bytes/sec during 20 seconds.
1177    */
1178 
1179   /* Set the "low speed limit" */
1180   CURLOPT(CURLOPT_LOW_SPEED_LIMIT, CURLOPTTYPE_LONG, 19),
1181 
1182   /* Set the "low speed time" */
1183   CURLOPT(CURLOPT_LOW_SPEED_TIME, CURLOPTTYPE_LONG, 20),
1184 
1185   /* Set the continuation offset.
1186    *
1187    * Note there is also a _LARGE version of this key which uses
1188    * off_t types, allowing for large file offsets on platforms which
1189    * use larger-than-32-bit off_t's.  Look below for RESUME_FROM_LARGE.
1190    */
1191   CURLOPT(CURLOPT_RESUME_FROM, CURLOPTTYPE_LONG, 21),
1192 
1193   /* Set cookie in request: */
1194   CURLOPT(CURLOPT_COOKIE, CURLOPTTYPE_STRINGPOINT, 22),
1195 
1196   /* This points to a linked list of headers, struct curl_slist kind. This
1197      list is also used for RTSP (in spite of its name) */
1198   CURLOPT(CURLOPT_HTTPHEADER, CURLOPTTYPE_SLISTPOINT, 23),
1199 
1200   /* This points to a linked list of post entries, struct curl_httppost */
1201   CURLOPTDEPRECATED(CURLOPT_HTTPPOST, CURLOPTTYPE_OBJECTPOINT, 24,
1202                     7.56.0, "Use CURLOPT_MIMEPOST"),
1203 
1204   /* name of the file keeping your private SSL-certificate */
1205   CURLOPT(CURLOPT_SSLCERT, CURLOPTTYPE_STRINGPOINT, 25),
1206 
1207   /* password for the SSL or SSH private key */
1208   CURLOPT(CURLOPT_KEYPASSWD, CURLOPTTYPE_STRINGPOINT, 26),
1209 
1210   /* send TYPE parameter? */
1211   CURLOPT(CURLOPT_CRLF, CURLOPTTYPE_LONG, 27),
1212 
1213   /* send linked-list of QUOTE commands */
1214   CURLOPT(CURLOPT_QUOTE, CURLOPTTYPE_SLISTPOINT, 28),
1215 
1216   /* send FILE * or void * to store headers to, if you use a callback it
1217      is simply passed to the callback unmodified */
1218   CURLOPT(CURLOPT_HEADERDATA, CURLOPTTYPE_CBPOINT, 29),
1219 
1220   /* point to a file to read the initial cookies from, also enables
1221      "cookie awareness" */
1222   CURLOPT(CURLOPT_COOKIEFILE, CURLOPTTYPE_STRINGPOINT, 31),
1223 
1224   /* What version to specifically try to use.
1225      See CURL_SSLVERSION defines below. */
1226   CURLOPT(CURLOPT_SSLVERSION, CURLOPTTYPE_VALUES, 32),
1227 
1228   /* What kind of HTTP time condition to use, see defines */
1229   CURLOPT(CURLOPT_TIMECONDITION, CURLOPTTYPE_VALUES, 33),
1230 
1231   /* Time to use with the above condition. Specified in number of seconds
1232      since 1 Jan 1970 */
1233   CURLOPT(CURLOPT_TIMEVALUE, CURLOPTTYPE_LONG, 34),
1234 
1235   /* 35 = OBSOLETE */
1236 
1237   /* Custom request, for customizing the get command like
1238      HTTP: DELETE, TRACE and others
1239      FTP: to use a different list command
1240      */
1241   CURLOPT(CURLOPT_CUSTOMREQUEST, CURLOPTTYPE_STRINGPOINT, 36),
1242 
1243   /* FILE handle to use instead of stderr */
1244   CURLOPT(CURLOPT_STDERR, CURLOPTTYPE_OBJECTPOINT, 37),
1245 
1246   /* 38 is not used */
1247 
1248   /* send linked-list of post-transfer QUOTE commands */
1249   CURLOPT(CURLOPT_POSTQUOTE, CURLOPTTYPE_SLISTPOINT, 39),
1250 
1251    /* OBSOLETE, do not use! */
1252   CURLOPT(CURLOPT_OBSOLETE40, CURLOPTTYPE_OBJECTPOINT, 40),
1253 
1254   /* talk a lot */
1255   CURLOPT(CURLOPT_VERBOSE, CURLOPTTYPE_LONG, 41),
1256 
1257   /* throw the header out too */
1258   CURLOPT(CURLOPT_HEADER, CURLOPTTYPE_LONG, 42),
1259 
1260   /* shut off the progress meter */
1261   CURLOPT(CURLOPT_NOPROGRESS, CURLOPTTYPE_LONG, 43),
1262 
1263   /* use HEAD to get http document */
1264   CURLOPT(CURLOPT_NOBODY, CURLOPTTYPE_LONG, 44),
1265 
1266   /* no output on http error codes >= 400 */
1267   CURLOPT(CURLOPT_FAILONERROR, CURLOPTTYPE_LONG, 45),
1268 
1269   /* this is an upload */
1270   CURLOPT(CURLOPT_UPLOAD, CURLOPTTYPE_LONG, 46),
1271 
1272   /* HTTP POST method */
1273   CURLOPT(CURLOPT_POST, CURLOPTTYPE_LONG, 47),
1274 
1275   /* bare names when listing directories */
1276   CURLOPT(CURLOPT_DIRLISTONLY, CURLOPTTYPE_LONG, 48),
1277 
1278   /* Append instead of overwrite on upload! */
1279   CURLOPT(CURLOPT_APPEND, CURLOPTTYPE_LONG, 50),
1280 
1281   /* Specify whether to read the user+password from the .netrc or the URL.
1282    * This must be one of the CURL_NETRC_* enums below. */
1283   CURLOPT(CURLOPT_NETRC, CURLOPTTYPE_VALUES, 51),
1284 
1285   /* use Location: Luke! */
1286   CURLOPT(CURLOPT_FOLLOWLOCATION, CURLOPTTYPE_LONG, 52),
1287 
1288    /* transfer data in text/ASCII format */
1289   CURLOPT(CURLOPT_TRANSFERTEXT, CURLOPTTYPE_LONG, 53),
1290 
1291   /* HTTP PUT */
1292   CURLOPTDEPRECATED(CURLOPT_PUT, CURLOPTTYPE_LONG, 54,
1293                     7.12.1, "Use CURLOPT_UPLOAD"),
1294 
1295   /* 55 = OBSOLETE */
1296 
1297   /* DEPRECATED
1298    * Function that will be called instead of the internal progress display
1299    * function. This function should be defined as the curl_progress_callback
1300    * prototype defines. */
1301   CURLOPTDEPRECATED(CURLOPT_PROGRESSFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 56,
1302                     7.32.0, "Use CURLOPT_XFERINFOFUNCTION"),
1303 
1304   /* Data passed to the CURLOPT_PROGRESSFUNCTION and CURLOPT_XFERINFOFUNCTION
1305      callbacks */
1306   CURLOPT(CURLOPT_XFERINFODATA, CURLOPTTYPE_CBPOINT, 57),
1307 #define CURLOPT_PROGRESSDATA CURLOPT_XFERINFODATA
1308 
1309   /* We want the referrer field set automatically when following locations */
1310   CURLOPT(CURLOPT_AUTOREFERER, CURLOPTTYPE_LONG, 58),
1311 
1312   /* Port of the proxy, can be set in the proxy string as well with:
1313      "[host]:[port]" */
1314   CURLOPT(CURLOPT_PROXYPORT, CURLOPTTYPE_LONG, 59),
1315 
1316   /* size of the POST input data, if strlen() is not good to use */
1317   CURLOPT(CURLOPT_POSTFIELDSIZE, CURLOPTTYPE_LONG, 60),
1318 
1319   /* tunnel non-http operations through an HTTP proxy */
1320   CURLOPT(CURLOPT_HTTPPROXYTUNNEL, CURLOPTTYPE_LONG, 61),
1321 
1322   /* Set the interface string to use as outgoing network interface */
1323   CURLOPT(CURLOPT_INTERFACE, CURLOPTTYPE_STRINGPOINT, 62),
1324 
1325   /* Set the krb4/5 security level, this also enables krb4/5 awareness.  This
1326    * is a string, 'clear', 'safe', 'confidential' or 'private'.  If the string
1327    * is set but doesn't match one of these, 'private' will be used.  */
1328   CURLOPT(CURLOPT_KRBLEVEL, CURLOPTTYPE_STRINGPOINT, 63),
1329 
1330   /* Set if we should verify the peer in ssl handshake, set 1 to verify. */
1331   CURLOPT(CURLOPT_SSL_VERIFYPEER, CURLOPTTYPE_LONG, 64),
1332 
1333   /* The CApath or CAfile used to validate the peer certificate
1334      this option is used only if SSL_VERIFYPEER is true */
1335   CURLOPT(CURLOPT_CAINFO, CURLOPTTYPE_STRINGPOINT, 65),
1336 
1337   /* 66 = OBSOLETE */
1338   /* 67 = OBSOLETE */
1339 
1340   /* Maximum number of http redirects to follow */
1341   CURLOPT(CURLOPT_MAXREDIRS, CURLOPTTYPE_LONG, 68),
1342 
1343   /* Pass a long set to 1 to get the date of the requested document (if
1344      possible)! Pass a zero to shut it off. */
1345   CURLOPT(CURLOPT_FILETIME, CURLOPTTYPE_LONG, 69),
1346 
1347   /* This points to a linked list of telnet options */
1348   CURLOPT(CURLOPT_TELNETOPTIONS, CURLOPTTYPE_SLISTPOINT, 70),
1349 
1350   /* Max amount of cached alive connections */
1351   CURLOPT(CURLOPT_MAXCONNECTS, CURLOPTTYPE_LONG, 71),
1352 
1353   /* OBSOLETE, do not use! */
1354   CURLOPT(CURLOPT_OBSOLETE72, CURLOPTTYPE_LONG, 72),
1355 
1356   /* 73 = OBSOLETE */
1357 
1358   /* Set to explicitly use a new connection for the upcoming transfer.
1359      Do not use this unless you're absolutely sure of this, as it makes the
1360      operation slower and is less friendly for the network. */
1361   CURLOPT(CURLOPT_FRESH_CONNECT, CURLOPTTYPE_LONG, 74),
1362 
1363   /* Set to explicitly forbid the upcoming transfer's connection to be reused
1364      when done. Do not use this unless you're absolutely sure of this, as it
1365      makes the operation slower and is less friendly for the network. */
1366   CURLOPT(CURLOPT_FORBID_REUSE, CURLOPTTYPE_LONG, 75),
1367 
1368   /* Set to a file name that contains random data for libcurl to use to
1369      seed the random engine when doing SSL connects. */
1370   CURLOPTDEPRECATED(CURLOPT_RANDOM_FILE, CURLOPTTYPE_STRINGPOINT, 76,
1371                     7.84.0, "Serves no purpose anymore"),
1372 
1373   /* Set to the Entropy Gathering Daemon socket pathname */
1374   CURLOPTDEPRECATED(CURLOPT_EGDSOCKET, CURLOPTTYPE_STRINGPOINT, 77,
1375                     7.84.0, "Serves no purpose anymore"),
1376 
1377   /* Time-out connect operations after this amount of seconds, if connects are
1378      OK within this time, then fine... This only aborts the connect phase. */
1379   CURLOPT(CURLOPT_CONNECTTIMEOUT, CURLOPTTYPE_LONG, 78),
1380 
1381   /* Function that will be called to store headers (instead of fwrite). The
1382    * parameters will use fwrite() syntax, make sure to follow them. */
1383   CURLOPT(CURLOPT_HEADERFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 79),
1384 
1385   /* Set this to force the HTTP request to get back to GET. Only really usable
1386      if POST, PUT or a custom request have been used first.
1387    */
1388   CURLOPT(CURLOPT_HTTPGET, CURLOPTTYPE_LONG, 80),
1389 
1390   /* Set if we should verify the Common name from the peer certificate in ssl
1391    * handshake, set 1 to check existence, 2 to ensure that it matches the
1392    * provided hostname. */
1393   CURLOPT(CURLOPT_SSL_VERIFYHOST, CURLOPTTYPE_LONG, 81),
1394 
1395   /* Specify which file name to write all known cookies in after completed
1396      operation. Set file name to "-" (dash) to make it go to stdout. */
1397   CURLOPT(CURLOPT_COOKIEJAR, CURLOPTTYPE_STRINGPOINT, 82),
1398 
1399   /* Specify which SSL ciphers to use */
1400   CURLOPT(CURLOPT_SSL_CIPHER_LIST, CURLOPTTYPE_STRINGPOINT, 83),
1401 
1402   /* Specify which HTTP version to use! This must be set to one of the
1403      CURL_HTTP_VERSION* enums set below. */
1404   CURLOPT(CURLOPT_HTTP_VERSION, CURLOPTTYPE_VALUES, 84),
1405 
1406   /* Specifically switch on or off the FTP engine's use of the EPSV command. By
1407      default, that one will always be attempted before the more traditional
1408      PASV command. */
1409   CURLOPT(CURLOPT_FTP_USE_EPSV, CURLOPTTYPE_LONG, 85),
1410 
1411   /* type of the file keeping your SSL-certificate ("DER", "PEM", "ENG") */
1412   CURLOPT(CURLOPT_SSLCERTTYPE, CURLOPTTYPE_STRINGPOINT, 86),
1413 
1414   /* name of the file keeping your private SSL-key */
1415   CURLOPT(CURLOPT_SSLKEY, CURLOPTTYPE_STRINGPOINT, 87),
1416 
1417   /* type of the file keeping your private SSL-key ("DER", "PEM", "ENG") */
1418   CURLOPT(CURLOPT_SSLKEYTYPE, CURLOPTTYPE_STRINGPOINT, 88),
1419 
1420   /* crypto engine for the SSL-sub system */
1421   CURLOPT(CURLOPT_SSLENGINE, CURLOPTTYPE_STRINGPOINT, 89),
1422 
1423   /* set the crypto engine for the SSL-sub system as default
1424      the param has no meaning...
1425    */
1426   CURLOPT(CURLOPT_SSLENGINE_DEFAULT, CURLOPTTYPE_LONG, 90),
1427 
1428   /* Non-zero value means to use the global dns cache */
1429   /* DEPRECATED, do not use! */
1430   CURLOPTDEPRECATED(CURLOPT_DNS_USE_GLOBAL_CACHE, CURLOPTTYPE_LONG, 91,
1431                     7.11.1, "Use CURLOPT_SHARE"),
1432 
1433   /* DNS cache timeout */
1434   CURLOPT(CURLOPT_DNS_CACHE_TIMEOUT, CURLOPTTYPE_LONG, 92),
1435 
1436   /* send linked-list of pre-transfer QUOTE commands */
1437   CURLOPT(CURLOPT_PREQUOTE, CURLOPTTYPE_SLISTPOINT, 93),
1438 
1439   /* set the debug function */
1440   CURLOPT(CURLOPT_DEBUGFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 94),
1441 
1442   /* set the data for the debug function */
1443   CURLOPT(CURLOPT_DEBUGDATA, CURLOPTTYPE_CBPOINT, 95),
1444 
1445   /* mark this as start of a cookie session */
1446   CURLOPT(CURLOPT_COOKIESESSION, CURLOPTTYPE_LONG, 96),
1447 
1448   /* The CApath directory used to validate the peer certificate
1449      this option is used only if SSL_VERIFYPEER is true */
1450   CURLOPT(CURLOPT_CAPATH, CURLOPTTYPE_STRINGPOINT, 97),
1451 
1452   /* Instruct libcurl to use a smaller receive buffer */
1453   CURLOPT(CURLOPT_BUFFERSIZE, CURLOPTTYPE_LONG, 98),
1454 
1455   /* Instruct libcurl to not use any signal/alarm handlers, even when using
1456      timeouts. This option is useful for multi-threaded applications.
1457      See libcurl-the-guide for more background information. */
1458   CURLOPT(CURLOPT_NOSIGNAL, CURLOPTTYPE_LONG, 99),
1459 
1460   /* Provide a CURLShare for mutexing non-ts data */
1461   CURLOPT(CURLOPT_SHARE, CURLOPTTYPE_OBJECTPOINT, 100),
1462 
1463   /* indicates type of proxy. accepted values are CURLPROXY_HTTP (default),
1464      CURLPROXY_HTTPS, CURLPROXY_SOCKS4, CURLPROXY_SOCKS4A and
1465      CURLPROXY_SOCKS5. */
1466   CURLOPT(CURLOPT_PROXYTYPE, CURLOPTTYPE_VALUES, 101),
1467 
1468   /* Set the Accept-Encoding string. Use this to tell a server you would like
1469      the response to be compressed. Before 7.21.6, this was known as
1470      CURLOPT_ENCODING */
1471   CURLOPT(CURLOPT_ACCEPT_ENCODING, CURLOPTTYPE_STRINGPOINT, 102),
1472 
1473   /* Set pointer to private data */
1474   CURLOPT(CURLOPT_PRIVATE, CURLOPTTYPE_OBJECTPOINT, 103),
1475 
1476   /* Set aliases for HTTP 200 in the HTTP Response header */
1477   CURLOPT(CURLOPT_HTTP200ALIASES, CURLOPTTYPE_SLISTPOINT, 104),
1478 
1479   /* Continue to send authentication (user+password) when following locations,
1480      even when hostname changed. This can potentially send off the name
1481      and password to whatever host the server decides. */
1482   CURLOPT(CURLOPT_UNRESTRICTED_AUTH, CURLOPTTYPE_LONG, 105),
1483 
1484   /* Specifically switch on or off the FTP engine's use of the EPRT command (
1485      it also disables the LPRT attempt). By default, those ones will always be
1486      attempted before the good old traditional PORT command. */
1487   CURLOPT(CURLOPT_FTP_USE_EPRT, CURLOPTTYPE_LONG, 106),
1488 
1489   /* Set this to a bitmask value to enable the particular authentications
1490      methods you like. Use this in combination with CURLOPT_USERPWD.
1491      Note that setting multiple bits may cause extra network round-trips. */
1492   CURLOPT(CURLOPT_HTTPAUTH, CURLOPTTYPE_VALUES, 107),
1493 
1494   /* Set the ssl context callback function, currently only for OpenSSL or
1495      WolfSSL ssl_ctx, or mbedTLS mbedtls_ssl_config in the second argument.
1496      The function must match the curl_ssl_ctx_callback prototype. */
1497   CURLOPT(CURLOPT_SSL_CTX_FUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 108),
1498 
1499   /* Set the userdata for the ssl context callback function's third
1500      argument */
1501   CURLOPT(CURLOPT_SSL_CTX_DATA, CURLOPTTYPE_CBPOINT, 109),
1502 
1503   /* FTP Option that causes missing dirs to be created on the remote server.
1504      In 7.19.4 we introduced the convenience enums for this option using the
1505      CURLFTP_CREATE_DIR prefix.
1506   */
1507   CURLOPT(CURLOPT_FTP_CREATE_MISSING_DIRS, CURLOPTTYPE_LONG, 110),
1508 
1509   /* Set this to a bitmask value to enable the particular authentications
1510      methods you like. Use this in combination with CURLOPT_PROXYUSERPWD.
1511      Note that setting multiple bits may cause extra network round-trips. */
1512   CURLOPT(CURLOPT_PROXYAUTH, CURLOPTTYPE_VALUES, 111),
1513 
1514   /* Option that changes the timeout, in seconds, associated with getting a
1515      response.  This is different from transfer timeout time and essentially
1516      places a demand on the server to acknowledge commands in a timely
1517      manner. For FTP, SMTP, IMAP and POP3. */
1518   CURLOPT(CURLOPT_SERVER_RESPONSE_TIMEOUT, CURLOPTTYPE_LONG, 112),
1519 
1520   /* Set this option to one of the CURL_IPRESOLVE_* defines (see below) to
1521      tell libcurl to use those IP versions only. This only has effect on
1522      systems with support for more than one, i.e IPv4 _and_ IPv6. */
1523   CURLOPT(CURLOPT_IPRESOLVE, CURLOPTTYPE_VALUES, 113),
1524 
1525   /* Set this option to limit the size of a file that will be downloaded from
1526      an HTTP or FTP server.
1527 
1528      Note there is also _LARGE version which adds large file support for
1529      platforms which have larger off_t sizes.  See MAXFILESIZE_LARGE below. */
1530   CURLOPT(CURLOPT_MAXFILESIZE, CURLOPTTYPE_LONG, 114),
1531 
1532   /* See the comment for INFILESIZE above, but in short, specifies
1533    * the size of the file being uploaded.  -1 means unknown.
1534    */
1535   CURLOPT(CURLOPT_INFILESIZE_LARGE, CURLOPTTYPE_OFF_T, 115),
1536 
1537   /* Sets the continuation offset.  There is also a CURLOPTTYPE_LONG version
1538    * of this; look above for RESUME_FROM.
1539    */
1540   CURLOPT(CURLOPT_RESUME_FROM_LARGE, CURLOPTTYPE_OFF_T, 116),
1541 
1542   /* Sets the maximum size of data that will be downloaded from
1543    * an HTTP or FTP server.  See MAXFILESIZE above for the LONG version.
1544    */
1545   CURLOPT(CURLOPT_MAXFILESIZE_LARGE, CURLOPTTYPE_OFF_T, 117),
1546 
1547   /* Set this option to the file name of your .netrc file you want libcurl
1548      to parse (using the CURLOPT_NETRC option). If not set, libcurl will do
1549      a poor attempt to find the user's home directory and check for a .netrc
1550      file in there. */
1551   CURLOPT(CURLOPT_NETRC_FILE, CURLOPTTYPE_STRINGPOINT, 118),
1552 
1553   /* Enable SSL/TLS for FTP, pick one of:
1554      CURLUSESSL_TRY     - try using SSL, proceed anyway otherwise
1555      CURLUSESSL_CONTROL - SSL for the control connection or fail
1556      CURLUSESSL_ALL     - SSL for all communication or fail
1557   */
1558   CURLOPT(CURLOPT_USE_SSL, CURLOPTTYPE_VALUES, 119),
1559 
1560   /* The _LARGE version of the standard POSTFIELDSIZE option */
1561   CURLOPT(CURLOPT_POSTFIELDSIZE_LARGE, CURLOPTTYPE_OFF_T, 120),
1562 
1563   /* Enable/disable the TCP Nagle algorithm */
1564   CURLOPT(CURLOPT_TCP_NODELAY, CURLOPTTYPE_LONG, 121),
1565 
1566   /* 122 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
1567   /* 123 OBSOLETE. Gone in 7.16.0 */
1568   /* 124 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
1569   /* 125 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
1570   /* 126 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
1571   /* 127 OBSOLETE. Gone in 7.16.0 */
1572   /* 128 OBSOLETE. Gone in 7.16.0 */
1573 
1574   /* When FTP over SSL/TLS is selected (with CURLOPT_USE_SSL), this option
1575      can be used to change libcurl's default action which is to first try
1576      "AUTH SSL" and then "AUTH TLS" in this order, and proceed when a OK
1577      response has been received.
1578 
1579      Available parameters are:
1580      CURLFTPAUTH_DEFAULT - let libcurl decide
1581      CURLFTPAUTH_SSL     - try "AUTH SSL" first, then TLS
1582      CURLFTPAUTH_TLS     - try "AUTH TLS" first, then SSL
1583   */
1584   CURLOPT(CURLOPT_FTPSSLAUTH, CURLOPTTYPE_VALUES, 129),
1585 
1586   CURLOPTDEPRECATED(CURLOPT_IOCTLFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 130,
1587                     7.18.0, "Use CURLOPT_SEEKFUNCTION"),
1588   CURLOPTDEPRECATED(CURLOPT_IOCTLDATA, CURLOPTTYPE_CBPOINT, 131,
1589                     7.18.0, "Use CURLOPT_SEEKDATA"),
1590 
1591   /* 132 OBSOLETE. Gone in 7.16.0 */
1592   /* 133 OBSOLETE. Gone in 7.16.0 */
1593 
1594   /* null-terminated string for pass on to the FTP server when asked for
1595      "account" info */
1596   CURLOPT(CURLOPT_FTP_ACCOUNT, CURLOPTTYPE_STRINGPOINT, 134),
1597 
1598   /* feed cookie into cookie engine */
1599   CURLOPT(CURLOPT_COOKIELIST, CURLOPTTYPE_STRINGPOINT, 135),
1600 
1601   /* ignore Content-Length */
1602   CURLOPT(CURLOPT_IGNORE_CONTENT_LENGTH, CURLOPTTYPE_LONG, 136),
1603 
1604   /* Set to non-zero to skip the IP address received in a 227 PASV FTP server
1605      response. Typically used for FTP-SSL purposes but is not restricted to
1606      that. libcurl will then instead use the same IP address it used for the
1607      control connection. */
1608   CURLOPT(CURLOPT_FTP_SKIP_PASV_IP, CURLOPTTYPE_LONG, 137),
1609 
1610   /* Select "file method" to use when doing FTP, see the curl_ftpmethod
1611      above. */
1612   CURLOPT(CURLOPT_FTP_FILEMETHOD, CURLOPTTYPE_VALUES, 138),
1613 
1614   /* Local port number to bind the socket to */
1615   CURLOPT(CURLOPT_LOCALPORT, CURLOPTTYPE_LONG, 139),
1616 
1617   /* Number of ports to try, including the first one set with LOCALPORT.
1618      Thus, setting it to 1 will make no additional attempts but the first.
1619   */
1620   CURLOPT(CURLOPT_LOCALPORTRANGE, CURLOPTTYPE_LONG, 140),
1621 
1622   /* no transfer, set up connection and let application use the socket by
1623      extracting it with CURLINFO_LASTSOCKET */
1624   CURLOPT(CURLOPT_CONNECT_ONLY, CURLOPTTYPE_LONG, 141),
1625 
1626   /* Function that will be called to convert from the
1627      network encoding (instead of using the iconv calls in libcurl) */
1628   CURLOPTDEPRECATED(CURLOPT_CONV_FROM_NETWORK_FUNCTION,
1629                     CURLOPTTYPE_FUNCTIONPOINT, 142,
1630                     7.82.0, "Serves no purpose anymore"),
1631 
1632   /* Function that will be called to convert to the
1633      network encoding (instead of using the iconv calls in libcurl) */
1634   CURLOPTDEPRECATED(CURLOPT_CONV_TO_NETWORK_FUNCTION,
1635                     CURLOPTTYPE_FUNCTIONPOINT, 143,
1636                     7.82.0, "Serves no purpose anymore"),
1637 
1638   /* Function that will be called to convert from UTF8
1639      (instead of using the iconv calls in libcurl)
1640      Note that this is used only for SSL certificate processing */
1641   CURLOPTDEPRECATED(CURLOPT_CONV_FROM_UTF8_FUNCTION,
1642                     CURLOPTTYPE_FUNCTIONPOINT, 144,
1643                     7.82.0, "Serves no purpose anymore"),
1644 
1645   /* if the connection proceeds too quickly then need to slow it down */
1646   /* limit-rate: maximum number of bytes per second to send or receive */
1647   CURLOPT(CURLOPT_MAX_SEND_SPEED_LARGE, CURLOPTTYPE_OFF_T, 145),
1648   CURLOPT(CURLOPT_MAX_RECV_SPEED_LARGE, CURLOPTTYPE_OFF_T, 146),
1649 
1650   /* Pointer to command string to send if USER/PASS fails. */
1651   CURLOPT(CURLOPT_FTP_ALTERNATIVE_TO_USER, CURLOPTTYPE_STRINGPOINT, 147),
1652 
1653   /* callback function for setting socket options */
1654   CURLOPT(CURLOPT_SOCKOPTFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 148),
1655   CURLOPT(CURLOPT_SOCKOPTDATA, CURLOPTTYPE_CBPOINT, 149),
1656 
1657   /* set to 0 to disable session ID reuse for this transfer, default is
1658      enabled (== 1) */
1659   CURLOPT(CURLOPT_SSL_SESSIONID_CACHE, CURLOPTTYPE_LONG, 150),
1660 
1661   /* allowed SSH authentication methods */
1662   CURLOPT(CURLOPT_SSH_AUTH_TYPES, CURLOPTTYPE_VALUES, 151),
1663 
1664   /* Used by scp/sftp to do public/private key authentication */
1665   CURLOPT(CURLOPT_SSH_PUBLIC_KEYFILE, CURLOPTTYPE_STRINGPOINT, 152),
1666   CURLOPT(CURLOPT_SSH_PRIVATE_KEYFILE, CURLOPTTYPE_STRINGPOINT, 153),
1667 
1668   /* Send CCC (Clear Command Channel) after authentication */
1669   CURLOPT(CURLOPT_FTP_SSL_CCC, CURLOPTTYPE_LONG, 154),
1670 
1671   /* Same as TIMEOUT and CONNECTTIMEOUT, but with ms resolution */
1672   CURLOPT(CURLOPT_TIMEOUT_MS, CURLOPTTYPE_LONG, 155),
1673   CURLOPT(CURLOPT_CONNECTTIMEOUT_MS, CURLOPTTYPE_LONG, 156),
1674 
1675   /* set to zero to disable the libcurl's decoding and thus pass the raw body
1676      data to the application even when it is encoded/compressed */
1677   CURLOPT(CURLOPT_HTTP_TRANSFER_DECODING, CURLOPTTYPE_LONG, 157),
1678   CURLOPT(CURLOPT_HTTP_CONTENT_DECODING, CURLOPTTYPE_LONG, 158),
1679 
1680   /* Permission used when creating new files and directories on the remote
1681      server for protocols that support it, SFTP/SCP/FILE */
1682   CURLOPT(CURLOPT_NEW_FILE_PERMS, CURLOPTTYPE_LONG, 159),
1683   CURLOPT(CURLOPT_NEW_DIRECTORY_PERMS, CURLOPTTYPE_LONG, 160),
1684 
1685   /* Set the behavior of POST when redirecting. Values must be set to one
1686      of CURL_REDIR* defines below. This used to be called CURLOPT_POST301 */
1687   CURLOPT(CURLOPT_POSTREDIR, CURLOPTTYPE_VALUES, 161),
1688 
1689   /* used by scp/sftp to verify the host's public key */
1690   CURLOPT(CURLOPT_SSH_HOST_PUBLIC_KEY_MD5, CURLOPTTYPE_STRINGPOINT, 162),
1691 
1692   /* Callback function for opening socket (instead of socket(2)). Optionally,
1693      callback is able change the address or refuse to connect returning
1694      CURL_SOCKET_BAD.  The callback should have type
1695      curl_opensocket_callback */
1696   CURLOPT(CURLOPT_OPENSOCKETFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 163),
1697   CURLOPT(CURLOPT_OPENSOCKETDATA, CURLOPTTYPE_CBPOINT, 164),
1698 
1699   /* POST volatile input fields. */
1700   CURLOPT(CURLOPT_COPYPOSTFIELDS, CURLOPTTYPE_OBJECTPOINT, 165),
1701 
1702   /* set transfer mode (;type=<a|i>) when doing FTP via an HTTP proxy */
1703   CURLOPT(CURLOPT_PROXY_TRANSFER_MODE, CURLOPTTYPE_LONG, 166),
1704 
1705   /* Callback function for seeking in the input stream */
1706   CURLOPT(CURLOPT_SEEKFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 167),
1707   CURLOPT(CURLOPT_SEEKDATA, CURLOPTTYPE_CBPOINT, 168),
1708 
1709   /* CRL file */
1710   CURLOPT(CURLOPT_CRLFILE, CURLOPTTYPE_STRINGPOINT, 169),
1711 
1712   /* Issuer certificate */
1713   CURLOPT(CURLOPT_ISSUERCERT, CURLOPTTYPE_STRINGPOINT, 170),
1714 
1715   /* (IPv6) Address scope */
1716   CURLOPT(CURLOPT_ADDRESS_SCOPE, CURLOPTTYPE_LONG, 171),
1717 
1718   /* Collect certificate chain info and allow it to get retrievable with
1719      CURLINFO_CERTINFO after the transfer is complete. */
1720   CURLOPT(CURLOPT_CERTINFO, CURLOPTTYPE_LONG, 172),
1721 
1722   /* "name" and "pwd" to use when fetching. */
1723   CURLOPT(CURLOPT_USERNAME, CURLOPTTYPE_STRINGPOINT, 173),
1724   CURLOPT(CURLOPT_PASSWORD, CURLOPTTYPE_STRINGPOINT, 174),
1725 
1726     /* "name" and "pwd" to use with Proxy when fetching. */
1727   CURLOPT(CURLOPT_PROXYUSERNAME, CURLOPTTYPE_STRINGPOINT, 175),
1728   CURLOPT(CURLOPT_PROXYPASSWORD, CURLOPTTYPE_STRINGPOINT, 176),
1729 
1730   /* Comma separated list of hostnames defining no-proxy zones. These should
1731      match both hostnames directly, and hostnames within a domain. For
1732      example, local.com will match local.com and www.local.com, but NOT
1733      notlocal.com or www.notlocal.com. For compatibility with other
1734      implementations of this, .local.com will be considered to be the same as
1735      local.com. A single * is the only valid wildcard, and effectively
1736      disables the use of proxy. */
1737   CURLOPT(CURLOPT_NOPROXY, CURLOPTTYPE_STRINGPOINT, 177),
1738 
1739   /* block size for TFTP transfers */
1740   CURLOPT(CURLOPT_TFTP_BLKSIZE, CURLOPTTYPE_LONG, 178),
1741 
1742   /* Socks Service */
1743   /* DEPRECATED, do not use! */
1744   CURLOPTDEPRECATED(CURLOPT_SOCKS5_GSSAPI_SERVICE,
1745                     CURLOPTTYPE_STRINGPOINT, 179,
1746                     7.49.0, "Use CURLOPT_PROXY_SERVICE_NAME"),
1747 
1748   /* Socks Service */
1749   CURLOPT(CURLOPT_SOCKS5_GSSAPI_NEC, CURLOPTTYPE_LONG, 180),
1750 
1751   /* set the bitmask for the protocols that are allowed to be used for the
1752      transfer, which thus helps the app which takes URLs from users or other
1753      external inputs and want to restrict what protocol(s) to deal
1754      with. Defaults to CURLPROTO_ALL. */
1755   CURLOPTDEPRECATED(CURLOPT_PROTOCOLS, CURLOPTTYPE_LONG, 181,
1756                     7.85.0, "Use CURLOPT_PROTOCOLS_STR"),
1757 
1758   /* set the bitmask for the protocols that libcurl is allowed to follow to,
1759      as a subset of the CURLOPT_PROTOCOLS ones. That means the protocol needs
1760      to be set in both bitmasks to be allowed to get redirected to. */
1761   CURLOPTDEPRECATED(CURLOPT_REDIR_PROTOCOLS, CURLOPTTYPE_LONG, 182,
1762                     7.85.0, "Use CURLOPT_REDIR_PROTOCOLS_STR"),
1763 
1764   /* set the SSH knownhost file name to use */
1765   CURLOPT(CURLOPT_SSH_KNOWNHOSTS, CURLOPTTYPE_STRINGPOINT, 183),
1766 
1767   /* set the SSH host key callback, must point to a curl_sshkeycallback
1768      function */
1769   CURLOPT(CURLOPT_SSH_KEYFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 184),
1770 
1771   /* set the SSH host key callback custom pointer */
1772   CURLOPT(CURLOPT_SSH_KEYDATA, CURLOPTTYPE_CBPOINT, 185),
1773 
1774   /* set the SMTP mail originator */
1775   CURLOPT(CURLOPT_MAIL_FROM, CURLOPTTYPE_STRINGPOINT, 186),
1776 
1777   /* set the list of SMTP mail receiver(s) */
1778   CURLOPT(CURLOPT_MAIL_RCPT, CURLOPTTYPE_SLISTPOINT, 187),
1779 
1780   /* FTP: send PRET before PASV */
1781   CURLOPT(CURLOPT_FTP_USE_PRET, CURLOPTTYPE_LONG, 188),
1782 
1783   /* RTSP request method (OPTIONS, SETUP, PLAY, etc...) */
1784   CURLOPT(CURLOPT_RTSP_REQUEST, CURLOPTTYPE_VALUES, 189),
1785 
1786   /* The RTSP session identifier */
1787   CURLOPT(CURLOPT_RTSP_SESSION_ID, CURLOPTTYPE_STRINGPOINT, 190),
1788 
1789   /* The RTSP stream URI */
1790   CURLOPT(CURLOPT_RTSP_STREAM_URI, CURLOPTTYPE_STRINGPOINT, 191),
1791 
1792   /* The Transport: header to use in RTSP requests */
1793   CURLOPT(CURLOPT_RTSP_TRANSPORT, CURLOPTTYPE_STRINGPOINT, 192),
1794 
1795   /* Manually initialize the client RTSP CSeq for this handle */
1796   CURLOPT(CURLOPT_RTSP_CLIENT_CSEQ, CURLOPTTYPE_LONG, 193),
1797 
1798   /* Manually initialize the server RTSP CSeq for this handle */
1799   CURLOPT(CURLOPT_RTSP_SERVER_CSEQ, CURLOPTTYPE_LONG, 194),
1800 
1801   /* The stream to pass to INTERLEAVEFUNCTION. */
1802   CURLOPT(CURLOPT_INTERLEAVEDATA, CURLOPTTYPE_CBPOINT, 195),
1803 
1804   /* Let the application define a custom write method for RTP data */
1805   CURLOPT(CURLOPT_INTERLEAVEFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 196),
1806 
1807   /* Turn on wildcard matching */
1808   CURLOPT(CURLOPT_WILDCARDMATCH, CURLOPTTYPE_LONG, 197),
1809 
1810   /* Directory matching callback called before downloading of an
1811      individual file (chunk) started */
1812   CURLOPT(CURLOPT_CHUNK_BGN_FUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 198),
1813 
1814   /* Directory matching callback called after the file (chunk)
1815      was downloaded, or skipped */
1816   CURLOPT(CURLOPT_CHUNK_END_FUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 199),
1817 
1818   /* Change match (fnmatch-like) callback for wildcard matching */
1819   CURLOPT(CURLOPT_FNMATCH_FUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 200),
1820 
1821   /* Let the application define custom chunk data pointer */
1822   CURLOPT(CURLOPT_CHUNK_DATA, CURLOPTTYPE_CBPOINT, 201),
1823 
1824   /* FNMATCH_FUNCTION user pointer */
1825   CURLOPT(CURLOPT_FNMATCH_DATA, CURLOPTTYPE_CBPOINT, 202),
1826 
1827   /* send linked-list of name:port:address sets */
1828   CURLOPT(CURLOPT_RESOLVE, CURLOPTTYPE_SLISTPOINT, 203),
1829 
1830   /* Set a username for authenticated TLS */
1831   CURLOPT(CURLOPT_TLSAUTH_USERNAME, CURLOPTTYPE_STRINGPOINT, 204),
1832 
1833   /* Set a password for authenticated TLS */
1834   CURLOPT(CURLOPT_TLSAUTH_PASSWORD, CURLOPTTYPE_STRINGPOINT, 205),
1835 
1836   /* Set authentication type for authenticated TLS */
1837   CURLOPT(CURLOPT_TLSAUTH_TYPE, CURLOPTTYPE_STRINGPOINT, 206),
1838 
1839   /* Set to 1 to enable the "TE:" header in HTTP requests to ask for
1840      compressed transfer-encoded responses. Set to 0 to disable the use of TE:
1841      in outgoing requests. The current default is 0, but it might change in a
1842      future libcurl release.
1843 
1844      libcurl will ask for the compressed methods it knows of, and if that
1845      isn't any, it will not ask for transfer-encoding at all even if this
1846      option is set to 1.
1847 
1848   */
1849   CURLOPT(CURLOPT_TRANSFER_ENCODING, CURLOPTTYPE_LONG, 207),
1850 
1851   /* Callback function for closing socket (instead of close(2)). The callback
1852      should have type curl_closesocket_callback */
1853   CURLOPT(CURLOPT_CLOSESOCKETFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 208),
1854   CURLOPT(CURLOPT_CLOSESOCKETDATA, CURLOPTTYPE_CBPOINT, 209),
1855 
1856   /* allow GSSAPI credential delegation */
1857   CURLOPT(CURLOPT_GSSAPI_DELEGATION, CURLOPTTYPE_VALUES, 210),
1858 
1859   /* Set the name servers to use for DNS resolution.
1860    * Only supported by the c-ares DNS backend */
1861   CURLOPT(CURLOPT_DNS_SERVERS, CURLOPTTYPE_STRINGPOINT, 211),
1862 
1863   /* Time-out accept operations (currently for FTP only) after this amount
1864      of milliseconds. */
1865   CURLOPT(CURLOPT_ACCEPTTIMEOUT_MS, CURLOPTTYPE_LONG, 212),
1866 
1867   /* Set TCP keepalive */
1868   CURLOPT(CURLOPT_TCP_KEEPALIVE, CURLOPTTYPE_LONG, 213),
1869 
1870   /* non-universal keepalive knobs (Linux, AIX, HP-UX, more) */
1871   CURLOPT(CURLOPT_TCP_KEEPIDLE, CURLOPTTYPE_LONG, 214),
1872   CURLOPT(CURLOPT_TCP_KEEPINTVL, CURLOPTTYPE_LONG, 215),
1873 
1874   /* Enable/disable specific SSL features with a bitmask, see CURLSSLOPT_* */
1875   CURLOPT(CURLOPT_SSL_OPTIONS, CURLOPTTYPE_VALUES, 216),
1876 
1877   /* Set the SMTP auth originator */
1878   CURLOPT(CURLOPT_MAIL_AUTH, CURLOPTTYPE_STRINGPOINT, 217),
1879 
1880   /* Enable/disable SASL initial response */
1881   CURLOPT(CURLOPT_SASL_IR, CURLOPTTYPE_LONG, 218),
1882 
1883   /* Function that will be called instead of the internal progress display
1884    * function. This function should be defined as the curl_xferinfo_callback
1885    * prototype defines. (Deprecates CURLOPT_PROGRESSFUNCTION) */
1886   CURLOPT(CURLOPT_XFERINFOFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 219),
1887 
1888   /* The XOAUTH2 bearer token */
1889   CURLOPT(CURLOPT_XOAUTH2_BEARER, CURLOPTTYPE_STRINGPOINT, 220),
1890 
1891   /* Set the interface string to use as outgoing network
1892    * interface for DNS requests.
1893    * Only supported by the c-ares DNS backend */
1894   CURLOPT(CURLOPT_DNS_INTERFACE, CURLOPTTYPE_STRINGPOINT, 221),
1895 
1896   /* Set the local IPv4 address to use for outgoing DNS requests.
1897    * Only supported by the c-ares DNS backend */
1898   CURLOPT(CURLOPT_DNS_LOCAL_IP4, CURLOPTTYPE_STRINGPOINT, 222),
1899 
1900   /* Set the local IPv6 address to use for outgoing DNS requests.
1901    * Only supported by the c-ares DNS backend */
1902   CURLOPT(CURLOPT_DNS_LOCAL_IP6, CURLOPTTYPE_STRINGPOINT, 223),
1903 
1904   /* Set authentication options directly */
1905   CURLOPT(CURLOPT_LOGIN_OPTIONS, CURLOPTTYPE_STRINGPOINT, 224),
1906 
1907   /* Enable/disable TLS NPN extension (http2 over ssl might fail without) */
1908   CURLOPTDEPRECATED(CURLOPT_SSL_ENABLE_NPN, CURLOPTTYPE_LONG, 225,
1909                     7.86.0, "Has no function"),
1910 
1911   /* Enable/disable TLS ALPN extension (http2 over ssl might fail without) */
1912   CURLOPT(CURLOPT_SSL_ENABLE_ALPN, CURLOPTTYPE_LONG, 226),
1913 
1914   /* Time to wait for a response to an HTTP request containing an
1915    * Expect: 100-continue header before sending the data anyway. */
1916   CURLOPT(CURLOPT_EXPECT_100_TIMEOUT_MS, CURLOPTTYPE_LONG, 227),
1917 
1918   /* This points to a linked list of headers used for proxy requests only,
1919      struct curl_slist kind */
1920   CURLOPT(CURLOPT_PROXYHEADER, CURLOPTTYPE_SLISTPOINT, 228),
1921 
1922   /* Pass in a bitmask of "header options" */
1923   CURLOPT(CURLOPT_HEADEROPT, CURLOPTTYPE_VALUES, 229),
1924 
1925   /* The public key in DER form used to validate the peer public key
1926      this option is used only if SSL_VERIFYPEER is true */
1927   CURLOPT(CURLOPT_PINNEDPUBLICKEY, CURLOPTTYPE_STRINGPOINT, 230),
1928 
1929   /* Path to Unix domain socket */
1930   CURLOPT(CURLOPT_UNIX_SOCKET_PATH, CURLOPTTYPE_STRINGPOINT, 231),
1931 
1932   /* Set if we should verify the certificate status. */
1933   CURLOPT(CURLOPT_SSL_VERIFYSTATUS, CURLOPTTYPE_LONG, 232),
1934 
1935   /* Set if we should enable TLS false start. */
1936   CURLOPT(CURLOPT_SSL_FALSESTART, CURLOPTTYPE_LONG, 233),
1937 
1938   /* Do not squash dot-dot sequences */
1939   CURLOPT(CURLOPT_PATH_AS_IS, CURLOPTTYPE_LONG, 234),
1940 
1941   /* Proxy Service Name */
1942   CURLOPT(CURLOPT_PROXY_SERVICE_NAME, CURLOPTTYPE_STRINGPOINT, 235),
1943 
1944   /* Service Name */
1945   CURLOPT(CURLOPT_SERVICE_NAME, CURLOPTTYPE_STRINGPOINT, 236),
1946 
1947   /* Wait/don't wait for pipe/mutex to clarify */
1948   CURLOPT(CURLOPT_PIPEWAIT, CURLOPTTYPE_LONG, 237),
1949 
1950   /* Set the protocol used when curl is given a URL without a protocol */
1951   CURLOPT(CURLOPT_DEFAULT_PROTOCOL, CURLOPTTYPE_STRINGPOINT, 238),
1952 
1953   /* Set stream weight, 1 - 256 (default is 16) */
1954   CURLOPT(CURLOPT_STREAM_WEIGHT, CURLOPTTYPE_LONG, 239),
1955 
1956   /* Set stream dependency on another CURL handle */
1957   CURLOPT(CURLOPT_STREAM_DEPENDS, CURLOPTTYPE_OBJECTPOINT, 240),
1958 
1959   /* Set E-xclusive stream dependency on another CURL handle */
1960   CURLOPT(CURLOPT_STREAM_DEPENDS_E, CURLOPTTYPE_OBJECTPOINT, 241),
1961 
1962   /* Do not send any tftp option requests to the server */
1963   CURLOPT(CURLOPT_TFTP_NO_OPTIONS, CURLOPTTYPE_LONG, 242),
1964 
1965   /* Linked-list of host:port:connect-to-host:connect-to-port,
1966      overrides the URL's host:port (only for the network layer) */
1967   CURLOPT(CURLOPT_CONNECT_TO, CURLOPTTYPE_SLISTPOINT, 243),
1968 
1969   /* Set TCP Fast Open */
1970   CURLOPT(CURLOPT_TCP_FASTOPEN, CURLOPTTYPE_LONG, 244),
1971 
1972   /* Continue to send data if the server responds early with an
1973    * HTTP status code >= 300 */
1974   CURLOPT(CURLOPT_KEEP_SENDING_ON_ERROR, CURLOPTTYPE_LONG, 245),
1975 
1976   /* The CApath or CAfile used to validate the proxy certificate
1977      this option is used only if PROXY_SSL_VERIFYPEER is true */
1978   CURLOPT(CURLOPT_PROXY_CAINFO, CURLOPTTYPE_STRINGPOINT, 246),
1979 
1980   /* The CApath directory used to validate the proxy certificate
1981      this option is used only if PROXY_SSL_VERIFYPEER is true */
1982   CURLOPT(CURLOPT_PROXY_CAPATH, CURLOPTTYPE_STRINGPOINT, 247),
1983 
1984   /* Set if we should verify the proxy in ssl handshake,
1985      set 1 to verify. */
1986   CURLOPT(CURLOPT_PROXY_SSL_VERIFYPEER, CURLOPTTYPE_LONG, 248),
1987 
1988   /* Set if we should verify the Common name from the proxy certificate in ssl
1989    * handshake, set 1 to check existence, 2 to ensure that it matches
1990    * the provided hostname. */
1991   CURLOPT(CURLOPT_PROXY_SSL_VERIFYHOST, CURLOPTTYPE_LONG, 249),
1992 
1993   /* What version to specifically try to use for proxy.
1994      See CURL_SSLVERSION defines below. */
1995   CURLOPT(CURLOPT_PROXY_SSLVERSION, CURLOPTTYPE_VALUES, 250),
1996 
1997   /* Set a username for authenticated TLS for proxy */
1998   CURLOPT(CURLOPT_PROXY_TLSAUTH_USERNAME, CURLOPTTYPE_STRINGPOINT, 251),
1999 
2000   /* Set a password for authenticated TLS for proxy */
2001   CURLOPT(CURLOPT_PROXY_TLSAUTH_PASSWORD, CURLOPTTYPE_STRINGPOINT, 252),
2002 
2003   /* Set authentication type for authenticated TLS for proxy */
2004   CURLOPT(CURLOPT_PROXY_TLSAUTH_TYPE, CURLOPTTYPE_STRINGPOINT, 253),
2005 
2006   /* name of the file keeping your private SSL-certificate for proxy */
2007   CURLOPT(CURLOPT_PROXY_SSLCERT, CURLOPTTYPE_STRINGPOINT, 254),
2008 
2009   /* type of the file keeping your SSL-certificate ("DER", "PEM", "ENG") for
2010      proxy */
2011   CURLOPT(CURLOPT_PROXY_SSLCERTTYPE, CURLOPTTYPE_STRINGPOINT, 255),
2012 
2013   /* name of the file keeping your private SSL-key for proxy */
2014   CURLOPT(CURLOPT_PROXY_SSLKEY, CURLOPTTYPE_STRINGPOINT, 256),
2015 
2016   /* type of the file keeping your private SSL-key ("DER", "PEM", "ENG") for
2017      proxy */
2018   CURLOPT(CURLOPT_PROXY_SSLKEYTYPE, CURLOPTTYPE_STRINGPOINT, 257),
2019 
2020   /* password for the SSL private key for proxy */
2021   CURLOPT(CURLOPT_PROXY_KEYPASSWD, CURLOPTTYPE_STRINGPOINT, 258),
2022 
2023   /* Specify which SSL ciphers to use for proxy */
2024   CURLOPT(CURLOPT_PROXY_SSL_CIPHER_LIST, CURLOPTTYPE_STRINGPOINT, 259),
2025 
2026   /* CRL file for proxy */
2027   CURLOPT(CURLOPT_PROXY_CRLFILE, CURLOPTTYPE_STRINGPOINT, 260),
2028 
2029   /* Enable/disable specific SSL features with a bitmask for proxy, see
2030      CURLSSLOPT_* */
2031   CURLOPT(CURLOPT_PROXY_SSL_OPTIONS, CURLOPTTYPE_LONG, 261),
2032 
2033   /* Name of pre proxy to use. */
2034   CURLOPT(CURLOPT_PRE_PROXY, CURLOPTTYPE_STRINGPOINT, 262),
2035 
2036   /* The public key in DER form used to validate the proxy public key
2037      this option is used only if PROXY_SSL_VERIFYPEER is true */
2038   CURLOPT(CURLOPT_PROXY_PINNEDPUBLICKEY, CURLOPTTYPE_STRINGPOINT, 263),
2039 
2040   /* Path to an abstract Unix domain socket */
2041   CURLOPT(CURLOPT_ABSTRACT_UNIX_SOCKET, CURLOPTTYPE_STRINGPOINT, 264),
2042 
2043   /* Suppress proxy CONNECT response headers from user callbacks */
2044   CURLOPT(CURLOPT_SUPPRESS_CONNECT_HEADERS, CURLOPTTYPE_LONG, 265),
2045 
2046   /* The request target, instead of extracted from the URL */
2047   CURLOPT(CURLOPT_REQUEST_TARGET, CURLOPTTYPE_STRINGPOINT, 266),
2048 
2049   /* bitmask of allowed auth methods for connections to SOCKS5 proxies */
2050   CURLOPT(CURLOPT_SOCKS5_AUTH, CURLOPTTYPE_LONG, 267),
2051 
2052   /* Enable/disable SSH compression */
2053   CURLOPT(CURLOPT_SSH_COMPRESSION, CURLOPTTYPE_LONG, 268),
2054 
2055   /* Post MIME data. */
2056   CURLOPT(CURLOPT_MIMEPOST, CURLOPTTYPE_OBJECTPOINT, 269),
2057 
2058   /* Time to use with the CURLOPT_TIMECONDITION. Specified in number of
2059      seconds since 1 Jan 1970. */
2060   CURLOPT(CURLOPT_TIMEVALUE_LARGE, CURLOPTTYPE_OFF_T, 270),
2061 
2062   /* Head start in milliseconds to give happy eyeballs. */
2063   CURLOPT(CURLOPT_HAPPY_EYEBALLS_TIMEOUT_MS, CURLOPTTYPE_LONG, 271),
2064 
2065   /* Function that will be called before a resolver request is made */
2066   CURLOPT(CURLOPT_RESOLVER_START_FUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 272),
2067 
2068   /* User data to pass to the resolver start callback. */
2069   CURLOPT(CURLOPT_RESOLVER_START_DATA, CURLOPTTYPE_CBPOINT, 273),
2070 
2071   /* send HAProxy PROXY protocol header? */
2072   CURLOPT(CURLOPT_HAPROXYPROTOCOL, CURLOPTTYPE_LONG, 274),
2073 
2074   /* shuffle addresses before use when DNS returns multiple */
2075   CURLOPT(CURLOPT_DNS_SHUFFLE_ADDRESSES, CURLOPTTYPE_LONG, 275),
2076 
2077   /* Specify which TLS 1.3 ciphers suites to use */
2078   CURLOPT(CURLOPT_TLS13_CIPHERS, CURLOPTTYPE_STRINGPOINT, 276),
2079   CURLOPT(CURLOPT_PROXY_TLS13_CIPHERS, CURLOPTTYPE_STRINGPOINT, 277),
2080 
2081   /* Disallow specifying username/login in URL. */
2082   CURLOPT(CURLOPT_DISALLOW_USERNAME_IN_URL, CURLOPTTYPE_LONG, 278),
2083 
2084   /* DNS-over-HTTPS URL */
2085   CURLOPT(CURLOPT_DOH_URL, CURLOPTTYPE_STRINGPOINT, 279),
2086 
2087   /* Preferred buffer size to use for uploads */
2088   CURLOPT(CURLOPT_UPLOAD_BUFFERSIZE, CURLOPTTYPE_LONG, 280),
2089 
2090   /* Time in ms between connection upkeep calls for long-lived connections. */
2091   CURLOPT(CURLOPT_UPKEEP_INTERVAL_MS, CURLOPTTYPE_LONG, 281),
2092 
2093   /* Specify URL using CURL URL API. */
2094   CURLOPT(CURLOPT_CURLU, CURLOPTTYPE_OBJECTPOINT, 282),
2095 
2096   /* add trailing data just after no more data is available */
2097   CURLOPT(CURLOPT_TRAILERFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 283),
2098 
2099   /* pointer to be passed to HTTP_TRAILER_FUNCTION */
2100   CURLOPT(CURLOPT_TRAILERDATA, CURLOPTTYPE_CBPOINT, 284),
2101 
2102   /* set this to 1L to allow HTTP/0.9 responses or 0L to disallow */
2103   CURLOPT(CURLOPT_HTTP09_ALLOWED, CURLOPTTYPE_LONG, 285),
2104 
2105   /* alt-svc control bitmask */
2106   CURLOPT(CURLOPT_ALTSVC_CTRL, CURLOPTTYPE_LONG, 286),
2107 
2108   /* alt-svc cache file name to possibly read from/write to */
2109   CURLOPT(CURLOPT_ALTSVC, CURLOPTTYPE_STRINGPOINT, 287),
2110 
2111   /* maximum age (idle time) of a connection to consider it for reuse
2112    * (in seconds) */
2113   CURLOPT(CURLOPT_MAXAGE_CONN, CURLOPTTYPE_LONG, 288),
2114 
2115   /* SASL authorization identity */
2116   CURLOPT(CURLOPT_SASL_AUTHZID, CURLOPTTYPE_STRINGPOINT, 289),
2117 
2118   /* allow RCPT TO command to fail for some recipients */
2119   CURLOPT(CURLOPT_MAIL_RCPT_ALLOWFAILS, CURLOPTTYPE_LONG, 290),
2120 
2121   /* the private SSL-certificate as a "blob" */
2122   CURLOPT(CURLOPT_SSLCERT_BLOB, CURLOPTTYPE_BLOB, 291),
2123   CURLOPT(CURLOPT_SSLKEY_BLOB, CURLOPTTYPE_BLOB, 292),
2124   CURLOPT(CURLOPT_PROXY_SSLCERT_BLOB, CURLOPTTYPE_BLOB, 293),
2125   CURLOPT(CURLOPT_PROXY_SSLKEY_BLOB, CURLOPTTYPE_BLOB, 294),
2126   CURLOPT(CURLOPT_ISSUERCERT_BLOB, CURLOPTTYPE_BLOB, 295),
2127 
2128   /* Issuer certificate for proxy */
2129   CURLOPT(CURLOPT_PROXY_ISSUERCERT, CURLOPTTYPE_STRINGPOINT, 296),
2130   CURLOPT(CURLOPT_PROXY_ISSUERCERT_BLOB, CURLOPTTYPE_BLOB, 297),
2131 
2132   /* the EC curves requested by the TLS client (RFC 8422, 5.1);
2133    * OpenSSL support via 'set_groups'/'set_curves':
2134    * https://www.openssl.org/docs/manmaster/man3/SSL_CTX_set1_groups.html
2135    */
2136   CURLOPT(CURLOPT_SSL_EC_CURVES, CURLOPTTYPE_STRINGPOINT, 298),
2137 
2138   /* HSTS bitmask */
2139   CURLOPT(CURLOPT_HSTS_CTRL, CURLOPTTYPE_LONG, 299),
2140   /* HSTS file name */
2141   CURLOPT(CURLOPT_HSTS, CURLOPTTYPE_STRINGPOINT, 300),
2142 
2143   /* HSTS read callback */
2144   CURLOPT(CURLOPT_HSTSREADFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 301),
2145   CURLOPT(CURLOPT_HSTSREADDATA, CURLOPTTYPE_CBPOINT, 302),
2146 
2147   /* HSTS write callback */
2148   CURLOPT(CURLOPT_HSTSWRITEFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 303),
2149   CURLOPT(CURLOPT_HSTSWRITEDATA, CURLOPTTYPE_CBPOINT, 304),
2150 
2151   /* Parameters for V4 signature */
2152   CURLOPT(CURLOPT_AWS_SIGV4, CURLOPTTYPE_STRINGPOINT, 305),
2153 
2154   /* Same as CURLOPT_SSL_VERIFYPEER but for DoH (DNS-over-HTTPS) servers. */
2155   CURLOPT(CURLOPT_DOH_SSL_VERIFYPEER, CURLOPTTYPE_LONG, 306),
2156 
2157   /* Same as CURLOPT_SSL_VERIFYHOST but for DoH (DNS-over-HTTPS) servers. */
2158   CURLOPT(CURLOPT_DOH_SSL_VERIFYHOST, CURLOPTTYPE_LONG, 307),
2159 
2160   /* Same as CURLOPT_SSL_VERIFYSTATUS but for DoH (DNS-over-HTTPS) servers. */
2161   CURLOPT(CURLOPT_DOH_SSL_VERIFYSTATUS, CURLOPTTYPE_LONG, 308),
2162 
2163   /* The CA certificates as "blob" used to validate the peer certificate
2164      this option is used only if SSL_VERIFYPEER is true */
2165   CURLOPT(CURLOPT_CAINFO_BLOB, CURLOPTTYPE_BLOB, 309),
2166 
2167   /* The CA certificates as "blob" used to validate the proxy certificate
2168      this option is used only if PROXY_SSL_VERIFYPEER is true */
2169   CURLOPT(CURLOPT_PROXY_CAINFO_BLOB, CURLOPTTYPE_BLOB, 310),
2170 
2171   /* used by scp/sftp to verify the host's public key */
2172   CURLOPT(CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256, CURLOPTTYPE_STRINGPOINT, 311),
2173 
2174   /* Function that will be called immediately before the initial request
2175      is made on a connection (after any protocol negotiation step).  */
2176   CURLOPT(CURLOPT_PREREQFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 312),
2177 
2178   /* Data passed to the CURLOPT_PREREQFUNCTION callback */
2179   CURLOPT(CURLOPT_PREREQDATA, CURLOPTTYPE_CBPOINT, 313),
2180 
2181   /* maximum age (since creation) of a connection to consider it for reuse
2182    * (in seconds) */
2183   CURLOPT(CURLOPT_MAXLIFETIME_CONN, CURLOPTTYPE_LONG, 314),
2184 
2185   /* Set MIME option flags. */
2186   CURLOPT(CURLOPT_MIME_OPTIONS, CURLOPTTYPE_LONG, 315),
2187 
2188   /* set the SSH host key callback, must point to a curl_sshkeycallback
2189      function */
2190   CURLOPT(CURLOPT_SSH_HOSTKEYFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 316),
2191 
2192   /* set the SSH host key callback custom pointer */
2193   CURLOPT(CURLOPT_SSH_HOSTKEYDATA, CURLOPTTYPE_CBPOINT, 317),
2194 
2195   /* specify which protocols that are allowed to be used for the transfer,
2196      which thus helps the app which takes URLs from users or other external
2197      inputs and want to restrict what protocol(s) to deal with. Defaults to
2198      all built-in protocols. */
2199   CURLOPT(CURLOPT_PROTOCOLS_STR, CURLOPTTYPE_STRINGPOINT, 318),
2200 
2201   /* specify which protocols that libcurl is allowed to follow directs to */
2202   CURLOPT(CURLOPT_REDIR_PROTOCOLS_STR, CURLOPTTYPE_STRINGPOINT, 319),
2203 
2204   /* websockets options */
2205   CURLOPT(CURLOPT_WS_OPTIONS, CURLOPTTYPE_LONG, 320),
2206 
2207   /* CA cache timeout */
2208   CURLOPT(CURLOPT_CA_CACHE_TIMEOUT, CURLOPTTYPE_LONG, 321),
2209 
2210   /* Can leak things, gonna exit() soon */
2211   CURLOPT(CURLOPT_QUICK_EXIT, CURLOPTTYPE_LONG, 322),
2212 
2213   /* set a specific client IP for HAProxy PROXY protocol header? */
2214   CURLOPT(CURLOPT_HAPROXY_CLIENT_IP, CURLOPTTYPE_STRINGPOINT, 323),
2215 
2216   /* millisecond version */
2217   CURLOPT(CURLOPT_SERVER_RESPONSE_TIMEOUT_MS, CURLOPTTYPE_LONG, 324),
2218 
2219     /* set ECH configuration  */
2220   CURLOPT(CURLOPT_ECH, CURLOPTTYPE_STRINGPOINT, 325),
2221 #ifdef HTTP_HANDOVER_FEATURE
2222   CURLOPT(CURLOPT_OHOS_SOCKET_BIND_NET_ID, CURLOPTTYPE_LONG, 1000),
2223 
2224   /* Callback function for deciding url connection reuse */
2225   CURLOPT(CURLOPT_CONNREUSEFUNCTION, CURLOPTTYPE_FUNCTIONPOINT, 1001),
2226 
2227   /* Data passed to the CURLOPT_CONNREUSEFUNCTION callback */
2228   CURLOPT(CURLOPT_CONNREUSEDATA, CURLOPTTYPE_CBPOINT, 1002),
2229 #endif
2230 
2231   CURLOPT(CURLOPT_MMS_RESERVED_DEFAULT_PORT, CURLOPTTYPE_LONG, 1003),
2232 
2233   CURLOPT_LASTENTRY /* the last unused */
2234 } CURLoption;
2235 
2236 #ifndef CURL_NO_OLDIES /* define this to test if your app builds with all
2237                           the obsolete stuff removed! */
2238 
2239 /* Backwards compatibility with older names */
2240 /* These are scheduled to disappear by 2011 */
2241 
2242 /* This was added in version 7.19.1 */
2243 #define CURLOPT_POST301 CURLOPT_POSTREDIR
2244 
2245 /* These are scheduled to disappear by 2009 */
2246 
2247 /* The following were added in 7.17.0 */
2248 #define CURLOPT_SSLKEYPASSWD CURLOPT_KEYPASSWD
2249 #define CURLOPT_FTPAPPEND CURLOPT_APPEND
2250 #define CURLOPT_FTPLISTONLY CURLOPT_DIRLISTONLY
2251 #define CURLOPT_FTP_SSL CURLOPT_USE_SSL
2252 
2253 /* The following were added earlier */
2254 
2255 #define CURLOPT_SSLCERTPASSWD CURLOPT_KEYPASSWD
2256 #define CURLOPT_KRB4LEVEL CURLOPT_KRBLEVEL
2257 
2258 /* */
2259 #define CURLOPT_FTP_RESPONSE_TIMEOUT CURLOPT_SERVER_RESPONSE_TIMEOUT
2260 
2261 /* Added in 8.2.0 */
2262 #define CURLOPT_MAIL_RCPT_ALLLOWFAILS CURLOPT_MAIL_RCPT_ALLOWFAILS
2263 
2264 #else
2265 /* This is set if CURL_NO_OLDIES is defined at compile-time */
2266 #undef CURLOPT_DNS_USE_GLOBAL_CACHE /* soon obsolete */
2267 #endif
2268 
2269 
2270   /* Below here follows defines for the CURLOPT_IPRESOLVE option. If a host
2271      name resolves addresses using more than one IP protocol version, this
2272      option might be handy to force libcurl to use a specific IP version. */
2273 #define CURL_IPRESOLVE_WHATEVER 0 /* default, uses addresses to all IP
2274                                      versions that your system allows */
2275 #define CURL_IPRESOLVE_V4       1 /* uses only IPv4 addresses/connections */
2276 #define CURL_IPRESOLVE_V6       2 /* uses only IPv6 addresses/connections */
2277 
2278   /* Convenient "aliases" */
2279 #define CURLOPT_RTSPHEADER CURLOPT_HTTPHEADER
2280 
2281   /* These enums are for use with the CURLOPT_HTTP_VERSION option. */
2282 enum {
2283   CURL_HTTP_VERSION_NONE, /* setting this means we don't care, and that we'd
2284                              like the library to choose the best possible
2285                              for us! */
2286   CURL_HTTP_VERSION_1_0,  /* please use HTTP 1.0 in the request */
2287   CURL_HTTP_VERSION_1_1,  /* please use HTTP 1.1 in the request */
2288   CURL_HTTP_VERSION_2_0,  /* please use HTTP 2 in the request */
2289   CURL_HTTP_VERSION_2TLS, /* use version 2 for HTTPS, version 1.1 for HTTP */
2290   CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE,  /* please use HTTP 2 without HTTP/1.1
2291                                            Upgrade */
2292   CURL_HTTP_VERSION_3 = 30, /* Use HTTP/3, fallback to HTTP/2 or HTTP/1 if
2293                                needed. For HTTPS only. For HTTP, this option
2294                                makes libcurl return error. */
2295   CURL_HTTP_VERSION_3ONLY = 31, /* Use HTTP/3 without fallback. For HTTPS
2296                                    only. For HTTP, this makes libcurl
2297                                    return error. */
2298 
2299   CURL_HTTP_VERSION_LAST /* *ILLEGAL* http version */
2300 };
2301 
2302 /* Convenience definition simple because the name of the version is HTTP/2 and
2303    not 2.0. The 2_0 version of the enum name was set while the version was
2304    still planned to be 2.0 and we stick to it for compatibility. */
2305 #define CURL_HTTP_VERSION_2 CURL_HTTP_VERSION_2_0
2306 
2307 /*
2308  * Public API enums for RTSP requests
2309  */
2310 enum {
2311     CURL_RTSPREQ_NONE, /* first in list */
2312     CURL_RTSPREQ_OPTIONS,
2313     CURL_RTSPREQ_DESCRIBE,
2314     CURL_RTSPREQ_ANNOUNCE,
2315     CURL_RTSPREQ_SETUP,
2316     CURL_RTSPREQ_PLAY,
2317     CURL_RTSPREQ_PAUSE,
2318     CURL_RTSPREQ_TEARDOWN,
2319     CURL_RTSPREQ_GET_PARAMETER,
2320     CURL_RTSPREQ_SET_PARAMETER,
2321     CURL_RTSPREQ_RECORD,
2322     CURL_RTSPREQ_RECEIVE,
2323     CURL_RTSPREQ_LAST /* last in list */
2324 };
2325 
2326   /* These enums are for use with the CURLOPT_NETRC option. */
2327 enum CURL_NETRC_OPTION {
2328   CURL_NETRC_IGNORED,     /* The .netrc will never be read.
2329                            * This is the default. */
2330   CURL_NETRC_OPTIONAL,    /* A user:password in the URL will be preferred
2331                            * to one in the .netrc. */
2332   CURL_NETRC_REQUIRED,    /* A user:password in the URL will be ignored.
2333                            * Unless one is set programmatically, the .netrc
2334                            * will be queried. */
2335   CURL_NETRC_LAST
2336 };
2337 
2338 #define CURL_SSLVERSION_DEFAULT 0
2339 #define CURL_SSLVERSION_TLSv1   1 /* TLS 1.x */
2340 #define CURL_SSLVERSION_SSLv2   2
2341 #define CURL_SSLVERSION_SSLv3   3
2342 #define CURL_SSLVERSION_TLSv1_0 4
2343 #define CURL_SSLVERSION_TLSv1_1 5
2344 #define CURL_SSLVERSION_TLSv1_2 6
2345 #define CURL_SSLVERSION_TLSv1_3 7
2346 
2347 #define CURL_SSLVERSION_LAST 8 /* never use, keep last */
2348 
2349 #define CURL_SSLVERSION_MAX_NONE 0
2350 #define CURL_SSLVERSION_MAX_DEFAULT (CURL_SSLVERSION_TLSv1   << 16)
2351 #define CURL_SSLVERSION_MAX_TLSv1_0 (CURL_SSLVERSION_TLSv1_0 << 16)
2352 #define CURL_SSLVERSION_MAX_TLSv1_1 (CURL_SSLVERSION_TLSv1_1 << 16)
2353 #define CURL_SSLVERSION_MAX_TLSv1_2 (CURL_SSLVERSION_TLSv1_2 << 16)
2354 #define CURL_SSLVERSION_MAX_TLSv1_3 (CURL_SSLVERSION_TLSv1_3 << 16)
2355 
2356   /* never use, keep last */
2357 #define CURL_SSLVERSION_MAX_LAST    (CURL_SSLVERSION_LAST    << 16)
2358 
2359 enum CURL_TLSAUTH {
2360   CURL_TLSAUTH_NONE,
2361   CURL_TLSAUTH_SRP,
2362   CURL_TLSAUTH_LAST /* never use, keep last */
2363 };
2364 
2365 /* symbols to use with CURLOPT_POSTREDIR.
2366    CURL_REDIR_POST_301, CURL_REDIR_POST_302 and CURL_REDIR_POST_303
2367    can be bitwise ORed so that CURL_REDIR_POST_301 | CURL_REDIR_POST_302
2368    | CURL_REDIR_POST_303 == CURL_REDIR_POST_ALL */
2369 
2370 #define CURL_REDIR_GET_ALL  0
2371 #define CURL_REDIR_POST_301 1
2372 #define CURL_REDIR_POST_302 2
2373 #define CURL_REDIR_POST_303 4
2374 #define CURL_REDIR_POST_ALL \
2375     (CURL_REDIR_POST_301|CURL_REDIR_POST_302|CURL_REDIR_POST_303)
2376 
2377 typedef enum {
2378   CURL_TIMECOND_NONE,
2379 
2380   CURL_TIMECOND_IFMODSINCE,
2381   CURL_TIMECOND_IFUNMODSINCE,
2382   CURL_TIMECOND_LASTMOD,
2383 
2384   CURL_TIMECOND_LAST
2385 } curl_TimeCond;
2386 
2387 /* Special size_t value signaling a null-terminated string. */
2388 #define CURL_ZERO_TERMINATED ((size_t) -1)
2389 
2390 /* curl_strequal() and curl_strnequal() are subject for removal in a future
2391    release */
2392 CURL_EXTERN int curl_strequal(const char *s1, const char *s2);
2393 CURL_EXTERN int curl_strnequal(const char *s1, const char *s2, size_t n);
2394 
2395 /* Mime/form handling support. */
2396 typedef struct curl_mime      curl_mime;      /* Mime context. */
2397 typedef struct curl_mimepart  curl_mimepart;  /* Mime part context. */
2398 
2399 /* CURLMIMEOPT_ defines are for the CURLOPT_MIME_OPTIONS option. */
2400 #define CURLMIMEOPT_FORMESCAPE  (1<<0) /* Use backslash-escaping for forms. */
2401 
2402 /*
2403  * NAME curl_mime_init()
2404  *
2405  * DESCRIPTION
2406  *
2407  * Create a mime context and return its handle. The easy parameter is the
2408  * target handle.
2409  */
2410 CURL_EXTERN curl_mime *curl_mime_init(CURL *easy);
2411 
2412 /*
2413  * NAME curl_mime_init_with_boundary()
2414  *
2415  * DESCRIPTION
2416  *
2417  * Create a mime context and return its handle. The easy parameter is the
2418  * target handle. The boundary parameter is a user-defined boundary to separate
2419  * the multi-part formdata. the length parameter is the length of boundary.
2420  */
2421 CURL_EXTERN curl_mime *curl_mime_init_with_boundary(CURL *easy, const char *boundary, size_t length);
2422 
2423 /*
2424  * NAME curl_boundary_max_length()
2425  *
2426  * DESCRIPTION
2427  *
2428  * Return the max length of boundary.
2429  */
2430 CURL_EXTERN size_t curl_boundary_max_length(void);
2431 
2432 /*
2433  * NAME curl_mime_free()
2434  *
2435  * DESCRIPTION
2436  *
2437  * release a mime handle and its substructures.
2438  */
2439 CURL_EXTERN void curl_mime_free(curl_mime *mime);
2440 
2441 /*
2442  * NAME curl_mime_addpart()
2443  *
2444  * DESCRIPTION
2445  *
2446  * Append a new empty part to the given mime context and return a handle to
2447  * the created part.
2448  */
2449 CURL_EXTERN curl_mimepart *curl_mime_addpart(curl_mime *mime);
2450 
2451 /*
2452  * NAME curl_mime_name()
2453  *
2454  * DESCRIPTION
2455  *
2456  * Set mime/form part name.
2457  */
2458 CURL_EXTERN CURLcode curl_mime_name(curl_mimepart *part, const char *name);
2459 
2460 /*
2461  * NAME curl_mime_filename()
2462  *
2463  * DESCRIPTION
2464  *
2465  * Set mime part remote file name.
2466  */
2467 CURL_EXTERN CURLcode curl_mime_filename(curl_mimepart *part,
2468                                         const char *filename);
2469 
2470 /*
2471  * NAME curl_mime_type()
2472  *
2473  * DESCRIPTION
2474  *
2475  * Set mime part type.
2476  */
2477 CURL_EXTERN CURLcode curl_mime_type(curl_mimepart *part, const char *mimetype);
2478 
2479 /*
2480  * NAME curl_mime_encoder()
2481  *
2482  * DESCRIPTION
2483  *
2484  * Set mime data transfer encoder.
2485  */
2486 CURL_EXTERN CURLcode curl_mime_encoder(curl_mimepart *part,
2487                                        const char *encoding);
2488 
2489 /*
2490  * NAME curl_mime_data()
2491  *
2492  * DESCRIPTION
2493  *
2494  * Set mime part data source from memory data,
2495  */
2496 CURL_EXTERN CURLcode curl_mime_data(curl_mimepart *part,
2497                                     const char *data, size_t datasize);
2498 
2499 /*
2500  * NAME curl_mime_filedata()
2501  *
2502  * DESCRIPTION
2503  *
2504  * Set mime part data source from named file.
2505  */
2506 CURL_EXTERN CURLcode curl_mime_filedata(curl_mimepart *part,
2507                                         const char *filename);
2508 
2509 /*
2510  * NAME curl_mime_data_cb()
2511  *
2512  * DESCRIPTION
2513  *
2514  * Set mime part data source from callback function.
2515  */
2516 CURL_EXTERN CURLcode curl_mime_data_cb(curl_mimepart *part,
2517                                        curl_off_t datasize,
2518                                        curl_read_callback readfunc,
2519                                        curl_seek_callback seekfunc,
2520                                        curl_free_callback freefunc,
2521                                        void *arg);
2522 
2523 /*
2524  * NAME curl_mime_subparts()
2525  *
2526  * DESCRIPTION
2527  *
2528  * Set mime part data source from subparts.
2529  */
2530 CURL_EXTERN CURLcode curl_mime_subparts(curl_mimepart *part,
2531                                         curl_mime *subparts);
2532 /*
2533  * NAME curl_mime_headers()
2534  *
2535  * DESCRIPTION
2536  *
2537  * Set mime part headers.
2538  */
2539 CURL_EXTERN CURLcode curl_mime_headers(curl_mimepart *part,
2540                                        struct curl_slist *headers,
2541                                        int take_ownership);
2542 
2543 typedef enum {
2544   /********* the first one is unused ************/
2545   CURLFORM_NOTHING         CURL_DEPRECATED(7.56.0, ""),
2546   CURLFORM_COPYNAME        CURL_DEPRECATED(7.56.0, "Use curl_mime_name()"),
2547   CURLFORM_PTRNAME         CURL_DEPRECATED(7.56.0, "Use curl_mime_name()"),
2548   CURLFORM_NAMELENGTH      CURL_DEPRECATED(7.56.0, ""),
2549   CURLFORM_COPYCONTENTS    CURL_DEPRECATED(7.56.0, "Use curl_mime_data()"),
2550   CURLFORM_PTRCONTENTS     CURL_DEPRECATED(7.56.0, "Use curl_mime_data()"),
2551   CURLFORM_CONTENTSLENGTH  CURL_DEPRECATED(7.56.0, "Use curl_mime_data()"),
2552   CURLFORM_FILECONTENT     CURL_DEPRECATED(7.56.0, "Use curl_mime_data_cb()"),
2553   CURLFORM_ARRAY           CURL_DEPRECATED(7.56.0, ""),
2554   CURLFORM_OBSOLETE,
2555   CURLFORM_FILE            CURL_DEPRECATED(7.56.0, "Use curl_mime_filedata()"),
2556 
2557   CURLFORM_BUFFER          CURL_DEPRECATED(7.56.0, "Use curl_mime_filename()"),
2558   CURLFORM_BUFFERPTR       CURL_DEPRECATED(7.56.0, "Use curl_mime_data()"),
2559   CURLFORM_BUFFERLENGTH    CURL_DEPRECATED(7.56.0, "Use curl_mime_data()"),
2560 
2561   CURLFORM_CONTENTTYPE     CURL_DEPRECATED(7.56.0, "Use curl_mime_type()"),
2562   CURLFORM_CONTENTHEADER   CURL_DEPRECATED(7.56.0, "Use curl_mime_headers()"),
2563   CURLFORM_FILENAME        CURL_DEPRECATED(7.56.0, "Use curl_mime_filename()"),
2564   CURLFORM_END,
2565   CURLFORM_OBSOLETE2,
2566 
2567   CURLFORM_STREAM          CURL_DEPRECATED(7.56.0, "Use curl_mime_data_cb()"),
2568   CURLFORM_CONTENTLEN  /* added in 7.46.0, provide a curl_off_t length */
2569                            CURL_DEPRECATED(7.56.0, "Use curl_mime_data()"),
2570 
2571   CURLFORM_LASTENTRY /* the last unused */
2572 } CURLformoption;
2573 
2574 /* structure to be used as parameter for CURLFORM_ARRAY */
2575 struct curl_forms {
2576   CURLformoption option;
2577   const char     *value;
2578 };
2579 
2580 /* use this for multipart formpost building */
2581 /* Returns code for curl_formadd()
2582  *
2583  * Returns:
2584  * CURL_FORMADD_OK             on success
2585  * CURL_FORMADD_MEMORY         if the FormInfo allocation fails
2586  * CURL_FORMADD_OPTION_TWICE   if one option is given twice for one Form
2587  * CURL_FORMADD_NULL           if a null pointer was given for a char
2588  * CURL_FORMADD_MEMORY         if the allocation of a FormInfo struct failed
2589  * CURL_FORMADD_UNKNOWN_OPTION if an unknown option was used
2590  * CURL_FORMADD_INCOMPLETE     if the some FormInfo is not complete (or error)
2591  * CURL_FORMADD_MEMORY         if a curl_httppost struct cannot be allocated
2592  * CURL_FORMADD_MEMORY         if some allocation for string copying failed.
2593  * CURL_FORMADD_ILLEGAL_ARRAY  if an illegal option is used in an array
2594  *
2595  ***************************************************************************/
2596 typedef enum {
2597   CURL_FORMADD_OK             CURL_DEPRECATED(7.56.0, ""), /* 1st, no error */
2598 
2599   CURL_FORMADD_MEMORY         CURL_DEPRECATED(7.56.0, ""),
2600   CURL_FORMADD_OPTION_TWICE   CURL_DEPRECATED(7.56.0, ""),
2601   CURL_FORMADD_NULL           CURL_DEPRECATED(7.56.0, ""),
2602   CURL_FORMADD_UNKNOWN_OPTION CURL_DEPRECATED(7.56.0, ""),
2603   CURL_FORMADD_INCOMPLETE     CURL_DEPRECATED(7.56.0, ""),
2604   CURL_FORMADD_ILLEGAL_ARRAY  CURL_DEPRECATED(7.56.0, ""),
2605   /* libcurl was built with form api disabled */
2606   CURL_FORMADD_DISABLED       CURL_DEPRECATED(7.56.0, ""),
2607 
2608   CURL_FORMADD_LAST /* last */
2609 } CURLFORMcode;
2610 
2611 /*
2612  * NAME curl_formadd()
2613  *
2614  * DESCRIPTION
2615  *
2616  * Pretty advanced function for building multi-part formposts. Each invoke
2617  * adds one part that together construct a full post. Then use
2618  * CURLOPT_HTTPPOST to send it off to libcurl.
2619  */
2620 CURL_EXTERN CURLFORMcode CURL_DEPRECATED(7.56.0, "Use curl_mime_init()")
2621 curl_formadd(struct curl_httppost **httppost,
2622              struct curl_httppost **last_post,
2623              ...);
2624 
2625 /*
2626  * callback function for curl_formget()
2627  * The void *arg pointer will be the one passed as second argument to
2628  *   curl_formget().
2629  * The character buffer passed to it must not be freed.
2630  * Should return the buffer length passed to it as the argument "len" on
2631  *   success.
2632  */
2633 typedef size_t (*curl_formget_callback)(void *arg, const char *buf,
2634                                         size_t len);
2635 
2636 /*
2637  * NAME curl_formget()
2638  *
2639  * DESCRIPTION
2640  *
2641  * Serialize a curl_httppost struct built with curl_formadd().
2642  * Accepts a void pointer as second argument which will be passed to
2643  * the curl_formget_callback function.
2644  * Returns 0 on success.
2645  */
2646 CURL_EXTERN int CURL_DEPRECATED(7.56.0, "")
2647 curl_formget(struct curl_httppost *form, void *arg,
2648              curl_formget_callback append);
2649 /*
2650  * NAME curl_formfree()
2651  *
2652  * DESCRIPTION
2653  *
2654  * Free a multipart formpost previously built with curl_formadd().
2655  */
2656 CURL_EXTERN void CURL_DEPRECATED(7.56.0, "Use curl_mime_free()")
2657 curl_formfree(struct curl_httppost *form);
2658 
2659 /*
2660  * NAME curl_getenv()
2661  *
2662  * DESCRIPTION
2663  *
2664  * Returns a malloc()'ed string that MUST be curl_free()ed after usage is
2665  * complete. DEPRECATED - see lib/README.curlx
2666  */
2667 CURL_EXTERN char *curl_getenv(const char *variable);
2668 
2669 /*
2670  * NAME curl_version()
2671  *
2672  * DESCRIPTION
2673  *
2674  * Returns a static ascii string of the libcurl version.
2675  */
2676 CURL_EXTERN char *curl_version(void);
2677 
2678 /*
2679  * NAME curl_easy_escape()
2680  *
2681  * DESCRIPTION
2682  *
2683  * Escapes URL strings (converts all letters consider illegal in URLs to their
2684  * %XX versions). This function returns a new allocated string or NULL if an
2685  * error occurred.
2686  */
2687 CURL_EXTERN char *curl_easy_escape(CURL *handle,
2688                                    const char *string,
2689                                    int length);
2690 
2691 /* the previous version: */
2692 CURL_EXTERN char *curl_escape(const char *string,
2693                               int length);
2694 
2695 
2696 /*
2697  * NAME curl_easy_unescape()
2698  *
2699  * DESCRIPTION
2700  *
2701  * Unescapes URL encoding in strings (converts all %XX codes to their 8bit
2702  * versions). This function returns a new allocated string or NULL if an error
2703  * occurred.
2704  * Conversion Note: On non-ASCII platforms the ASCII %XX codes are
2705  * converted into the host encoding.
2706  */
2707 CURL_EXTERN char *curl_easy_unescape(CURL *handle,
2708                                      const char *string,
2709                                      int length,
2710                                      int *outlength);
2711 
2712 /* the previous version */
2713 CURL_EXTERN char *curl_unescape(const char *string,
2714                                 int length);
2715 
2716 /*
2717  * NAME curl_free()
2718  *
2719  * DESCRIPTION
2720  *
2721  * Provided for de-allocation in the same translation unit that did the
2722  * allocation. Added in libcurl 7.10
2723  */
2724 CURL_EXTERN void curl_free(void *p);
2725 
2726 /*
2727  * NAME curl_global_init()
2728  *
2729  * DESCRIPTION
2730  *
2731  * curl_global_init() should be invoked exactly once for each application that
2732  * uses libcurl and before any call of other libcurl functions.
2733 
2734  * This function is thread-safe if CURL_VERSION_THREADSAFE is set in the
2735  * curl_version_info_data.features flag (fetch by curl_version_info()).
2736 
2737  */
2738 CURL_EXTERN CURLcode curl_global_init(long flags);
2739 
2740 /*
2741  * NAME curl_global_init_mem()
2742  *
2743  * DESCRIPTION
2744  *
2745  * curl_global_init() or curl_global_init_mem() should be invoked exactly once
2746  * for each application that uses libcurl.  This function can be used to
2747  * initialize libcurl and set user defined memory management callback
2748  * functions.  Users can implement memory management routines to check for
2749  * memory leaks, check for mis-use of the curl library etc.  User registered
2750  * callback routines will be invoked by this library instead of the system
2751  * memory management routines like malloc, free etc.
2752  */
2753 CURL_EXTERN CURLcode curl_global_init_mem(long flags,
2754                                           curl_malloc_callback m,
2755                                           curl_free_callback f,
2756                                           curl_realloc_callback r,
2757                                           curl_strdup_callback s,
2758                                           curl_calloc_callback c);
2759 
2760 /*
2761  * NAME curl_global_cleanup()
2762  *
2763  * DESCRIPTION
2764  *
2765  * curl_global_cleanup() should be invoked exactly once for each application
2766  * that uses libcurl
2767  */
2768 CURL_EXTERN void curl_global_cleanup(void);
2769 
2770 /*
2771  * NAME curl_global_trace()
2772  *
2773  * DESCRIPTION
2774  *
2775  * curl_global_trace() can be invoked at application start to
2776  * configure which components in curl should participate in tracing.
2777 
2778  * This function is thread-safe if CURL_VERSION_THREADSAFE is set in the
2779  * curl_version_info_data.features flag (fetch by curl_version_info()).
2780 
2781  */
2782 CURL_EXTERN CURLcode curl_global_trace(const char *config);
2783 
2784 /* linked-list structure for the CURLOPT_QUOTE option (and other) */
2785 struct curl_slist {
2786   char *data;
2787   struct curl_slist *next;
2788 };
2789 
2790 /*
2791  * NAME curl_global_sslset()
2792  *
2793  * DESCRIPTION
2794  *
2795  * When built with multiple SSL backends, curl_global_sslset() allows to
2796  * choose one. This function can only be called once, and it must be called
2797  * *before* curl_global_init().
2798  *
2799  * The backend can be identified by the id (e.g. CURLSSLBACKEND_OPENSSL). The
2800  * backend can also be specified via the name parameter (passing -1 as id).
2801  * If both id and name are specified, the name will be ignored. If neither id
2802  * nor name are specified, the function will fail with
2803  * CURLSSLSET_UNKNOWN_BACKEND and set the "avail" pointer to the
2804  * NULL-terminated list of available backends.
2805  *
2806  * Upon success, the function returns CURLSSLSET_OK.
2807  *
2808  * If the specified SSL backend is not available, the function returns
2809  * CURLSSLSET_UNKNOWN_BACKEND and sets the "avail" pointer to a NULL-terminated
2810  * list of available SSL backends.
2811  *
2812  * The SSL backend can be set only once. If it has already been set, a
2813  * subsequent attempt to change it will result in a CURLSSLSET_TOO_LATE.
2814  */
2815 
2816 struct curl_ssl_backend {
2817   curl_sslbackend id;
2818   const char *name;
2819 };
2820 typedef struct curl_ssl_backend curl_ssl_backend;
2821 
2822 typedef enum {
2823   CURLSSLSET_OK = 0,
2824   CURLSSLSET_UNKNOWN_BACKEND,
2825   CURLSSLSET_TOO_LATE,
2826   CURLSSLSET_NO_BACKENDS /* libcurl was built without any SSL support */
2827 } CURLsslset;
2828 
2829 CURL_EXTERN CURLsslset curl_global_sslset(curl_sslbackend id, const char *name,
2830                                           const curl_ssl_backend ***avail);
2831 
2832 /*
2833  * NAME curl_slist_append()
2834  *
2835  * DESCRIPTION
2836  *
2837  * Appends a string to a linked list. If no list exists, it will be created
2838  * first. Returns the new list, after appending.
2839  */
2840 CURL_EXTERN struct curl_slist *curl_slist_append(struct curl_slist *list,
2841                                                  const char *data);
2842 
2843 /*
2844  * NAME curl_slist_free_all()
2845  *
2846  * DESCRIPTION
2847  *
2848  * free a previously built curl_slist.
2849  */
2850 CURL_EXTERN void curl_slist_free_all(struct curl_slist *list);
2851 
2852 /*
2853  * NAME curl_getdate()
2854  *
2855  * DESCRIPTION
2856  *
2857  * Returns the time, in seconds since 1 Jan 1970 of the time string given in
2858  * the first argument. The time argument in the second parameter is unused
2859  * and should be set to NULL.
2860  */
2861 CURL_EXTERN time_t curl_getdate(const char *p, const time_t *unused);
2862 
2863 /* info about the certificate chain, for SSL backends that support it. Asked
2864    for with CURLOPT_CERTINFO / CURLINFO_CERTINFO */
2865 struct curl_certinfo {
2866   int num_of_certs;             /* number of certificates with information */
2867   struct curl_slist **certinfo; /* for each index in this array, there's a
2868                                    linked list with textual information for a
2869                                    certificate in the format "name:content".
2870                                    eg "Subject:foo", "Issuer:bar", etc. */
2871 };
2872 
2873 /* Information about the SSL library used and the respective internal SSL
2874    handle, which can be used to obtain further information regarding the
2875    connection. Asked for with CURLINFO_TLS_SSL_PTR or CURLINFO_TLS_SESSION. */
2876 struct curl_tlssessioninfo {
2877   curl_sslbackend backend;
2878   void *internals;
2879 };
2880 
2881 #define CURLINFO_STRING   0x100000
2882 #define CURLINFO_LONG     0x200000
2883 #define CURLINFO_DOUBLE   0x300000
2884 #define CURLINFO_SLIST    0x400000
2885 #define CURLINFO_PTR      0x400000 /* same as SLIST */
2886 #define CURLINFO_SOCKET   0x500000
2887 #define CURLINFO_OFF_T    0x600000
2888 #define CURLINFO_P_STRING 0xe00000
2889 #define CURLINFO_MASK     0x0fffff
2890 #define CURLINFO_TYPEMASK 0xf00000
2891 
2892 typedef enum {
2893   CURLINFO_NONE, /* first, never use this */
2894   CURLINFO_EFFECTIVE_URL    = CURLINFO_STRING + 1,
2895   CURLINFO_RESPONSE_CODE    = CURLINFO_LONG   + 2,
2896   CURLINFO_TOTAL_TIME       = CURLINFO_DOUBLE + 3,
2897   CURLINFO_NAMELOOKUP_TIME  = CURLINFO_DOUBLE + 4,
2898   CURLINFO_CONNECT_TIME     = CURLINFO_DOUBLE + 5,
2899   CURLINFO_PRETRANSFER_TIME = CURLINFO_DOUBLE + 6,
2900   CURLINFO_SIZE_UPLOAD CURL_DEPRECATED(7.55.0, "Use CURLINFO_SIZE_UPLOAD_T")
2901                             = CURLINFO_DOUBLE + 7,
2902   CURLINFO_SIZE_UPLOAD_T    = CURLINFO_OFF_T  + 7,
2903   CURLINFO_SIZE_DOWNLOAD
2904                        CURL_DEPRECATED(7.55.0, "Use CURLINFO_SIZE_DOWNLOAD_T")
2905                             = CURLINFO_DOUBLE + 8,
2906   CURLINFO_SIZE_DOWNLOAD_T  = CURLINFO_OFF_T  + 8,
2907   CURLINFO_SPEED_DOWNLOAD
2908                        CURL_DEPRECATED(7.55.0, "Use CURLINFO_SPEED_DOWNLOAD_T")
2909                             = CURLINFO_DOUBLE + 9,
2910   CURLINFO_SPEED_DOWNLOAD_T = CURLINFO_OFF_T  + 9,
2911   CURLINFO_SPEED_UPLOAD
2912                        CURL_DEPRECATED(7.55.0, "Use CURLINFO_SPEED_UPLOAD_T")
2913                             = CURLINFO_DOUBLE + 10,
2914   CURLINFO_SPEED_UPLOAD_T   = CURLINFO_OFF_T  + 10,
2915   CURLINFO_HEADER_SIZE      = CURLINFO_LONG   + 11,
2916   CURLINFO_REQUEST_SIZE     = CURLINFO_LONG   + 12,
2917   CURLINFO_SSL_VERIFYRESULT = CURLINFO_LONG   + 13,
2918   CURLINFO_FILETIME         = CURLINFO_LONG   + 14,
2919   CURLINFO_FILETIME_T       = CURLINFO_OFF_T  + 14,
2920   CURLINFO_CONTENT_LENGTH_DOWNLOAD
2921                        CURL_DEPRECATED(7.55.0,
2922                                       "Use CURLINFO_CONTENT_LENGTH_DOWNLOAD_T")
2923                             = CURLINFO_DOUBLE + 15,
2924   CURLINFO_CONTENT_LENGTH_DOWNLOAD_T = CURLINFO_OFF_T  + 15,
2925   CURLINFO_CONTENT_LENGTH_UPLOAD
2926                        CURL_DEPRECATED(7.55.0,
2927                                        "Use CURLINFO_CONTENT_LENGTH_UPLOAD_T")
2928                             = CURLINFO_DOUBLE + 16,
2929   CURLINFO_CONTENT_LENGTH_UPLOAD_T   = CURLINFO_OFF_T  + 16,
2930   CURLINFO_STARTTRANSFER_TIME = CURLINFO_DOUBLE + 17,
2931   CURLINFO_CONTENT_TYPE     = CURLINFO_STRING + 18,
2932   CURLINFO_REDIRECT_TIME    = CURLINFO_DOUBLE + 19,
2933   CURLINFO_REDIRECT_COUNT   = CURLINFO_LONG   + 20,
2934   CURLINFO_PRIVATE          = CURLINFO_STRING + 21,
2935   CURLINFO_HTTP_CONNECTCODE = CURLINFO_LONG   + 22,
2936   CURLINFO_HTTPAUTH_AVAIL   = CURLINFO_LONG   + 23,
2937   CURLINFO_PROXYAUTH_AVAIL  = CURLINFO_LONG   + 24,
2938   CURLINFO_OS_ERRNO         = CURLINFO_LONG   + 25,
2939   CURLINFO_NUM_CONNECTS     = CURLINFO_LONG   + 26,
2940   CURLINFO_SSL_ENGINES      = CURLINFO_SLIST  + 27,
2941   CURLINFO_COOKIELIST       = CURLINFO_SLIST  + 28,
2942   CURLINFO_LASTSOCKET  CURL_DEPRECATED(7.45.0, "Use CURLINFO_ACTIVESOCKET")
2943                             = CURLINFO_LONG   + 29,
2944   CURLINFO_FTP_ENTRY_PATH   = CURLINFO_STRING + 30,
2945   CURLINFO_REDIRECT_URL     = CURLINFO_STRING + 31,
2946   CURLINFO_PRIMARY_IP       = CURLINFO_STRING + 32,
2947   CURLINFO_APPCONNECT_TIME  = CURLINFO_DOUBLE + 33,
2948   CURLINFO_CERTINFO         = CURLINFO_PTR    + 34,
2949   CURLINFO_CONDITION_UNMET  = CURLINFO_LONG   + 35,
2950   CURLINFO_RTSP_SESSION_ID  = CURLINFO_STRING + 36,
2951   CURLINFO_RTSP_CLIENT_CSEQ = CURLINFO_LONG   + 37,
2952   CURLINFO_RTSP_SERVER_CSEQ = CURLINFO_LONG   + 38,
2953   CURLINFO_RTSP_CSEQ_RECV   = CURLINFO_LONG   + 39,
2954   CURLINFO_PRIMARY_PORT     = CURLINFO_LONG   + 40,
2955   CURLINFO_LOCAL_IP         = CURLINFO_STRING + 41,
2956   CURLINFO_LOCAL_PORT       = CURLINFO_LONG   + 42,
2957   CURLINFO_TLS_SESSION CURL_DEPRECATED(7.48.0, "Use CURLINFO_TLS_SSL_PTR")
2958                             = CURLINFO_PTR    + 43,
2959   CURLINFO_ACTIVESOCKET     = CURLINFO_SOCKET + 44,
2960   CURLINFO_TLS_SSL_PTR      = CURLINFO_PTR    + 45,
2961   CURLINFO_HTTP_VERSION     = CURLINFO_LONG   + 46,
2962   CURLINFO_PROXY_SSL_VERIFYRESULT = CURLINFO_LONG + 47,
2963   CURLINFO_PROTOCOL    CURL_DEPRECATED(7.85.0, "Use CURLINFO_SCHEME")
2964                             = CURLINFO_LONG   + 48,
2965   CURLINFO_SCHEME           = CURLINFO_STRING + 49,
2966   CURLINFO_TOTAL_TIME_T     = CURLINFO_OFF_T + 50,
2967   CURLINFO_NAMELOOKUP_TIME_T = CURLINFO_OFF_T + 51,
2968   CURLINFO_CONNECT_TIME_T   = CURLINFO_OFF_T + 52,
2969   CURLINFO_PRETRANSFER_TIME_T = CURLINFO_OFF_T + 53,
2970   CURLINFO_STARTTRANSFER_TIME_T = CURLINFO_OFF_T + 54,
2971   CURLINFO_REDIRECT_TIME_T  = CURLINFO_OFF_T + 55,
2972   CURLINFO_APPCONNECT_TIME_T = CURLINFO_OFF_T + 56,
2973   CURLINFO_RETRY_AFTER      = CURLINFO_OFF_T + 57,
2974   CURLINFO_EFFECTIVE_METHOD = CURLINFO_STRING + 58,
2975   CURLINFO_PROXY_ERROR      = CURLINFO_LONG + 59,
2976   CURLINFO_REFERER          = CURLINFO_STRING + 60,
2977   CURLINFO_CAINFO           = CURLINFO_STRING + 61,
2978   CURLINFO_CAPATH           = CURLINFO_STRING + 62,
2979   CURLINFO_XFER_ID          = CURLINFO_OFF_T + 63,
2980   CURLINFO_CONN_ID          = CURLINFO_OFF_T + 64,
2981   CURLINFO_QUEUE_TIME_T     = CURLINFO_OFF_T + 65,
2982   CURLINFO_SSL_ERROR        = CURLINFO_STRING + 999,
2983   CURLINFO_MIN_TLS_VERSION  = CURLINFO_LONG + 1000,
2984   CURLINFO_MAX_TLS_VERSION  = CURLINFO_LONG + 1001,
2985   CURLINFO_CIPHER_NUM       = CURLINFO_LONG + 1002,
2986   CURLINFO_CIPHERS          = CURLINFO_P_STRING + 1003,
2987   CURLINFO_LAST_POLLIN_TIME           = CURLINFO_LONG + 1004,
2988   CURLINFO_LAST_OS_POLLIN_TIME        = CURLINFO_LONG + 1005,
2989   CURLINFO_LAST_POLLOUT_TIME          = CURLINFO_LONG + 1006,
2990   CURLINFO_LAST_OS_POLLOUT_TIME       = CURLINFO_LONG + 1007,
2991   CURLINFO_LAST_SSL_RECV_SIZE         = CURLINFO_LONG + 1008,
2992   CURLINFO_LAST_SSL_SEND_SIZE         = CURLINFO_LONG + 1009,
2993   CURLINFO_TOTAL_SSL_RECV_SIZE        = CURLINFO_LONG + 1010,
2994   CURLINFO_TOTAL_SSL_SEND_SIZE        = CURLINFO_LONG + 1011,
2995   CURLINFO_LAST_RECV_SSL_ERROR        = CURLINFO_STRING + 1012,
2996   CURLINFO_LAST_SEND_SSL_ERROR        = CURLINFO_STRING + 1013,
2997   CURLINFO_LAST_RECV_ERRNO            = CURLINFO_LONG + 1014,
2998   CURLINFO_LAST_SEND_ERRNO            = CURLINFO_LONG + 1015,
2999   CURLINFO_SSL_CONNECT_ERRNO          = CURLINFO_LONG + 1016,
3000   CURLINFO_TCP_CONNECT_ERRNO          = CURLINFO_LONG + 1017,
3001   CURLINFO_USED_PROXY       = CURLINFO_LONG + 66,
3002   CURLINFO_LASTONE          = 66
3003 } CURLINFO;
3004 
3005 /* CURLINFO_RESPONSE_CODE is the new name for the option previously known as
3006    CURLINFO_HTTP_CODE */
3007 #define CURLINFO_HTTP_CODE CURLINFO_RESPONSE_CODE
3008 
3009 typedef enum {
3010   CURLCLOSEPOLICY_NONE, /* first, never use this */
3011 
3012   CURLCLOSEPOLICY_OLDEST,
3013   CURLCLOSEPOLICY_LEAST_RECENTLY_USED,
3014   CURLCLOSEPOLICY_LEAST_TRAFFIC,
3015   CURLCLOSEPOLICY_SLOWEST,
3016   CURLCLOSEPOLICY_CALLBACK,
3017 
3018   CURLCLOSEPOLICY_LAST /* last, never use this */
3019 } curl_closepolicy;
3020 
3021 #define CURL_GLOBAL_SSL (1<<0) /* no purpose since 7.57.0 */
3022 #define CURL_GLOBAL_WIN32 (1<<1)
3023 #define CURL_GLOBAL_ALL (CURL_GLOBAL_SSL|CURL_GLOBAL_WIN32)
3024 #define CURL_GLOBAL_NOTHING 0
3025 #define CURL_GLOBAL_DEFAULT CURL_GLOBAL_ALL
3026 #define CURL_GLOBAL_ACK_EINTR (1<<2)
3027 
3028 
3029 /*****************************************************************************
3030  * Setup defines, protos etc for the sharing stuff.
3031  */
3032 
3033 /* Different data locks for a single share */
3034 typedef enum {
3035   CURL_LOCK_DATA_NONE = 0,
3036   /*  CURL_LOCK_DATA_SHARE is used internally to say that
3037    *  the locking is just made to change the internal state of the share
3038    *  itself.
3039    */
3040   CURL_LOCK_DATA_SHARE,
3041   CURL_LOCK_DATA_COOKIE,
3042   CURL_LOCK_DATA_DNS,
3043   CURL_LOCK_DATA_SSL_SESSION,
3044   CURL_LOCK_DATA_CONNECT,
3045   CURL_LOCK_DATA_PSL,
3046   CURL_LOCK_DATA_HSTS,
3047   CURL_LOCK_DATA_LAST
3048 } curl_lock_data;
3049 
3050 /* Different lock access types */
3051 typedef enum {
3052   CURL_LOCK_ACCESS_NONE = 0,   /* unspecified action */
3053   CURL_LOCK_ACCESS_SHARED = 1, /* for read perhaps */
3054   CURL_LOCK_ACCESS_SINGLE = 2, /* for write perhaps */
3055   CURL_LOCK_ACCESS_LAST        /* never use */
3056 } curl_lock_access;
3057 
3058 typedef void (*curl_lock_function)(CURL *handle,
3059                                    curl_lock_data data,
3060                                    curl_lock_access locktype,
3061                                    void *userptr);
3062 typedef void (*curl_unlock_function)(CURL *handle,
3063                                      curl_lock_data data,
3064                                      void *userptr);
3065 
3066 
3067 typedef enum {
3068   CURLSHE_OK,  /* all is fine */
3069   CURLSHE_BAD_OPTION, /* 1 */
3070   CURLSHE_IN_USE,     /* 2 */
3071   CURLSHE_INVALID,    /* 3 */
3072   CURLSHE_NOMEM,      /* 4 out of memory */
3073   CURLSHE_NOT_BUILT_IN, /* 5 feature not present in lib */
3074   CURLSHE_LAST        /* never use */
3075 } CURLSHcode;
3076 
3077 typedef enum {
3078   CURLSHOPT_NONE,  /* don't use */
3079   CURLSHOPT_SHARE,   /* specify a data type to share */
3080   CURLSHOPT_UNSHARE, /* specify which data type to stop sharing */
3081   CURLSHOPT_LOCKFUNC,   /* pass in a 'curl_lock_function' pointer */
3082   CURLSHOPT_UNLOCKFUNC, /* pass in a 'curl_unlock_function' pointer */
3083   CURLSHOPT_USERDATA,   /* pass in a user data pointer used in the lock/unlock
3084                            callback functions */
3085   CURLSHOPT_LAST  /* never use */
3086 } CURLSHoption;
3087 
3088 CURL_EXTERN CURLSH *curl_share_init(void);
3089 CURL_EXTERN CURLSHcode curl_share_setopt(CURLSH *share, CURLSHoption option,
3090                                          ...);
3091 CURL_EXTERN CURLSHcode curl_share_cleanup(CURLSH *share);
3092 
3093 /****************************************************************************
3094  * Structures for querying information about the curl library at runtime.
3095  */
3096 
3097 typedef enum {
3098   CURLVERSION_FIRST,    /* 7.10 */
3099   CURLVERSION_SECOND,   /* 7.11.1 */
3100   CURLVERSION_THIRD,    /* 7.12.0 */
3101   CURLVERSION_FOURTH,   /* 7.16.1 */
3102   CURLVERSION_FIFTH,    /* 7.57.0 */
3103   CURLVERSION_SIXTH,    /* 7.66.0 */
3104   CURLVERSION_SEVENTH,  /* 7.70.0 */
3105   CURLVERSION_EIGHTH,   /* 7.72.0 */
3106   CURLVERSION_NINTH,    /* 7.75.0 */
3107   CURLVERSION_TENTH,    /* 7.77.0 */
3108   CURLVERSION_ELEVENTH, /* 7.87.0 */
3109   CURLVERSION_TWELFTH,  /* 8.8.0 */
3110   CURLVERSION_LAST /* never actually use this */
3111 } CURLversion;
3112 
3113 /* The 'CURLVERSION_NOW' is the symbolic name meant to be used by
3114    basically all programs ever that want to get version information. It is
3115    meant to be a built-in version number for what kind of struct the caller
3116    expects. If the struct ever changes, we redefine the NOW to another enum
3117    from above. */
3118 #define CURLVERSION_NOW CURLVERSION_TWELFTH
3119 
3120 struct curl_version_info_data {
3121   CURLversion age;          /* age of the returned struct */
3122   const char *version;      /* LIBCURL_VERSION */
3123   unsigned int version_num; /* LIBCURL_VERSION_NUM */
3124   const char *host;         /* OS/host/cpu/machine when configured */
3125   int features;             /* bitmask, see defines below */
3126   const char *ssl_version;  /* human readable string */
3127   long ssl_version_num;     /* not used anymore, always 0 */
3128   const char *libz_version; /* human readable string */
3129   /* protocols is terminated by an entry with a NULL protoname */
3130   const char * const *protocols;
3131 
3132   /* The fields below this were added in CURLVERSION_SECOND */
3133   const char *ares;
3134   int ares_num;
3135 
3136   /* This field was added in CURLVERSION_THIRD */
3137   const char *libidn;
3138 
3139   /* These field were added in CURLVERSION_FOURTH */
3140 
3141   /* Same as '_libiconv_version' if built with HAVE_ICONV */
3142   int iconv_ver_num;
3143 
3144   const char *libssh_version; /* human readable string */
3145 
3146   /* These fields were added in CURLVERSION_FIFTH */
3147   unsigned int brotli_ver_num; /* Numeric Brotli version
3148                                   (MAJOR << 24) | (MINOR << 12) | PATCH */
3149   const char *brotli_version; /* human readable string. */
3150 
3151   /* These fields were added in CURLVERSION_SIXTH */
3152   unsigned int nghttp2_ver_num; /* Numeric nghttp2 version
3153                                    (MAJOR << 16) | (MINOR << 8) | PATCH */
3154   const char *nghttp2_version; /* human readable string. */
3155   const char *quic_version;    /* human readable quic (+ HTTP/3) library +
3156                                   version or NULL */
3157 
3158   /* These fields were added in CURLVERSION_SEVENTH */
3159   const char *cainfo;          /* the built-in default CURLOPT_CAINFO, might
3160                                   be NULL */
3161   const char *capath;          /* the built-in default CURLOPT_CAPATH, might
3162                                   be NULL */
3163 
3164   /* These fields were added in CURLVERSION_EIGHTH */
3165   unsigned int zstd_ver_num; /* Numeric Zstd version
3166                                   (MAJOR << 24) | (MINOR << 12) | PATCH */
3167   const char *zstd_version; /* human readable string. */
3168 
3169   /* These fields were added in CURLVERSION_NINTH */
3170   const char *hyper_version; /* human readable string. */
3171 
3172   /* These fields were added in CURLVERSION_TENTH */
3173   const char *gsasl_version; /* human readable string. */
3174 
3175   /* These fields were added in CURLVERSION_ELEVENTH */
3176   /* feature_names is terminated by an entry with a NULL feature name */
3177   const char * const *feature_names;
3178 
3179   /* These fields were added in CURLVERSION_TWELFTH */
3180   const char *rtmp_version; /* human readable string. */
3181 };
3182 typedef struct curl_version_info_data curl_version_info_data;
3183 
3184 #define CURL_VERSION_IPV6         (1<<0)  /* IPv6-enabled */
3185 #define CURL_VERSION_KERBEROS4    (1<<1)  /* Kerberos V4 auth is supported
3186                                              (deprecated) */
3187 #define CURL_VERSION_SSL          (1<<2)  /* SSL options are present */
3188 #define CURL_VERSION_LIBZ         (1<<3)  /* libz features are present */
3189 #define CURL_VERSION_NTLM         (1<<4)  /* NTLM auth is supported */
3190 #define CURL_VERSION_GSSNEGOTIATE (1<<5)  /* Negotiate auth is supported
3191                                              (deprecated) */
3192 #define CURL_VERSION_DEBUG        (1<<6)  /* Built with debug capabilities */
3193 #define CURL_VERSION_ASYNCHDNS    (1<<7)  /* Asynchronous DNS resolves */
3194 #define CURL_VERSION_SPNEGO       (1<<8)  /* SPNEGO auth is supported */
3195 #define CURL_VERSION_LARGEFILE    (1<<9)  /* Supports files larger than 2GB */
3196 #define CURL_VERSION_IDN          (1<<10) /* Internationized Domain Names are
3197                                              supported */
3198 #define CURL_VERSION_SSPI         (1<<11) /* Built against Windows SSPI */
3199 #define CURL_VERSION_CONV         (1<<12) /* Character conversions supported */
3200 #define CURL_VERSION_CURLDEBUG    (1<<13) /* Debug memory tracking supported */
3201 #define CURL_VERSION_TLSAUTH_SRP  (1<<14) /* TLS-SRP auth is supported */
3202 #define CURL_VERSION_NTLM_WB      (1<<15) /* NTLM delegation to winbind helper
3203                                              is supported */
3204 #define CURL_VERSION_HTTP2        (1<<16) /* HTTP2 support built-in */
3205 #define CURL_VERSION_GSSAPI       (1<<17) /* Built against a GSS-API library */
3206 #define CURL_VERSION_KERBEROS5    (1<<18) /* Kerberos V5 auth is supported */
3207 #define CURL_VERSION_UNIX_SOCKETS (1<<19) /* Unix domain sockets support */
3208 #define CURL_VERSION_PSL          (1<<20) /* Mozilla's Public Suffix List, used
3209                                              for cookie domain verification */
3210 #define CURL_VERSION_HTTPS_PROXY  (1<<21) /* HTTPS-proxy support built-in */
3211 #define CURL_VERSION_MULTI_SSL    (1<<22) /* Multiple SSL backends available */
3212 #define CURL_VERSION_BROTLI       (1<<23) /* Brotli features are present. */
3213 #define CURL_VERSION_ALTSVC       (1<<24) /* Alt-Svc handling built-in */
3214 #define CURL_VERSION_HTTP3        (1<<25) /* HTTP3 support built-in */
3215 #define CURL_VERSION_ZSTD         (1<<26) /* zstd features are present */
3216 #define CURL_VERSION_UNICODE      (1<<27) /* Unicode support on Windows */
3217 #define CURL_VERSION_HSTS         (1<<28) /* HSTS is supported */
3218 #define CURL_VERSION_GSASL        (1<<29) /* libgsasl is supported */
3219 #define CURL_VERSION_THREADSAFE   (1<<30) /* libcurl API is thread-safe */
3220 
3221 /*
3222  * NAME curl_version_info()
3223  *
3224  * DESCRIPTION
3225  *
3226  * This function returns a pointer to a static copy of the version info
3227  * struct. See above.
3228  */
3229 CURL_EXTERN curl_version_info_data *curl_version_info(CURLversion);
3230 
3231 /*
3232  * NAME curl_easy_strerror()
3233  *
3234  * DESCRIPTION
3235  *
3236  * The curl_easy_strerror function may be used to turn a CURLcode value
3237  * into the equivalent human readable error string.  This is useful
3238  * for printing meaningful error messages.
3239  */
3240 CURL_EXTERN const char *curl_easy_strerror(CURLcode);
3241 
3242 /*
3243  * NAME curl_share_strerror()
3244  *
3245  * DESCRIPTION
3246  *
3247  * The curl_share_strerror function may be used to turn a CURLSHcode value
3248  * into the equivalent human readable error string.  This is useful
3249  * for printing meaningful error messages.
3250  */
3251 CURL_EXTERN const char *curl_share_strerror(CURLSHcode);
3252 
3253 /*
3254  * NAME curl_easy_pause()
3255  *
3256  * DESCRIPTION
3257  *
3258  * The curl_easy_pause function pauses or unpauses transfers. Select the new
3259  * state by setting the bitmask, use the convenience defines below.
3260  *
3261  */
3262 CURL_EXTERN CURLcode curl_easy_pause(CURL *handle, int bitmask);
3263 
3264 #define CURLPAUSE_RECV      (1<<0)
3265 #define CURLPAUSE_RECV_CONT (0)
3266 
3267 #define CURLPAUSE_SEND      (1<<2)
3268 #define CURLPAUSE_SEND_CONT (0)
3269 
3270 #define CURLPAUSE_ALL       (CURLPAUSE_RECV|CURLPAUSE_SEND)
3271 #define CURLPAUSE_CONT      (CURLPAUSE_RECV_CONT|CURLPAUSE_SEND_CONT)
3272 
3273 #ifdef  __cplusplus
3274 } /* end of extern "C" */
3275 #endif
3276 
3277 /* unfortunately, the easy.h and multi.h include files need options and info
3278   stuff before they can be included! */
3279 #include "easy.h" /* nothing in curl is fun without the easy stuff */
3280 #include "multi.h"
3281 #include "urlapi.h"
3282 #include "options.h"
3283 #include "header.h"
3284 #include "websockets.h"
3285 #include "mprintf.h"
3286 
3287 /* the typechecker doesn't work in C++ (yet) */
3288 #if defined(__GNUC__) && defined(__GNUC_MINOR__) && \
3289     ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)) && \
3290     !defined(__cplusplus) && !defined(CURL_DISABLE_TYPECHECK)
3291 #include "typecheck-gcc.h"
3292 #else
3293 #if defined(__STDC__) && (__STDC__ >= 1)
3294 /* This preprocessor magic that replaces a call with the exact same call is
3295    only done to make sure application authors pass exactly three arguments
3296    to these functions. */
3297 #define curl_easy_setopt(handle,opt,param) curl_easy_setopt(handle,opt,param)
3298 #define curl_easy_getinfo(handle,info,arg) curl_easy_getinfo(handle,info,arg)
3299 #define curl_share_setopt(share,opt,param) curl_share_setopt(share,opt,param)
3300 #define curl_multi_setopt(handle,opt,param) curl_multi_setopt(handle,opt,param)
3301 #endif /* __STDC__ >= 1 */
3302 #endif /* gcc >= 4.3 && !__cplusplus && !CURL_DISABLE_TYPECHECK */
3303 
3304 #endif /* CURLINC_CURL_H */
3305