1#ifndef __CURL_CURL_H
2#define __CURL_CURL_H
3/***************************************************************************
4 *                                  _   _ ____  _
5 *  Project                     ___| | | |  _ \| |
6 *                             / __| | | | |_) | |
7 *                            | (__| |_| |  _ <| |___
8 *                             \___|\___/|_| \_\_____|
9 *
10 * Copyright (C) 1998 - 2009, 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 http://curl.haxx.se/docs/copyright.html.
15 *
16 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
17 * copies of the Software, and permit persons to whom the Software is
18 * furnished to do so, under the terms of the COPYING file.
19 *
20 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21 * KIND, either express or implied.
22 *
23 * $Id: curl.h,v 1.396 2009-10-16 13:30:31 yangtse Exp $
24 ***************************************************************************/
25
26/*
27 * If you have libcurl problems, all docs and details are found here:
28 *   http://curl.haxx.se/libcurl/
29 *
30 * curl-library mailing list subscription and unsubscription web interface:
31 *   http://cool.haxx.se/mailman/listinfo/curl-library/
32 */
33
34/*
35 * Leading 'curl' path on the 'curlbuild.h' include statement is
36 * required to properly allow building outside of the source tree,
37 * due to the fact that in this case 'curlbuild.h' is generated in
38 * a subdirectory of the build tree while 'curl.h actually remains
39 * in a subdirectory of the source tree.
40 */
41
42#include "third_party/curl/curlver.h"         /* libcurl version defines   */
43#include "third_party/curl/curlbuild.h"       /* libcurl build definitions */
44#include "third_party/curl/curlrules.h"       /* libcurl rules enforcement */
45
46/*
47 * Define WIN32 when build target is Win32 API
48 */
49
50#if (defined(_WIN32) || defined(__WIN32__)) && \
51     !defined(WIN32) && !defined(__SYMBIAN32__)
52#define WIN32
53#endif
54
55#include <stdio.h>
56#include <limits.h>
57
58/* The include stuff here below is mainly for time_t! */
59#include <sys/types.h>
60#include <time.h>
61
62#if defined(WIN32) && !defined(_WIN32_WCE) && !defined(__GNUC__) && \
63  !defined(__CYGWIN__) || defined(__MINGW32__)
64#if !(defined(_WINSOCKAPI_) || defined(_WINSOCK_H))
65/* The check above prevents the winsock2 inclusion if winsock.h already was
66   included, since they can't co-exist without problems */
67#include <winsock2.h>
68#include <ws2tcpip.h>
69#endif
70#else
71
72/* HP-UX systems version 9, 10 and 11 lack sys/select.h and so does oldish
73   libc5-based Linux systems. Only include it on system that are known to
74   require it! */
75#if defined(_AIX) || defined(__NOVELL_LIBC__) || defined(__NetBSD__) || \
76    defined(__minix) || defined(__SYMBIAN32__) || defined(__INTEGRITY) || \
77    defined(ANDROID)
78#include <sys/select.h>
79#endif
80
81#ifndef _WIN32_WCE
82#include <sys/socket.h>
83#endif
84#if !defined(WIN32) && !defined(__WATCOMC__) && !defined(__VXWORKS__)
85#include <sys/time.h>
86#endif
87#include <sys/types.h>
88#endif
89
90#ifdef __BEOS__
91#include <support/SupportDefs.h>
92#endif
93
94#ifdef  __cplusplus
95extern "C" {
96#endif
97
98typedef void CURL;
99
100/*
101 * Decorate exportable functions for Win32 and Symbian OS DLL linking.
102 * This avoids using a .def file for building libcurl.dll.
103 */
104#if (defined(WIN32) || defined(_WIN32) || defined(__SYMBIAN32__)) && \
105     !defined(CURL_STATICLIB)
106#if defined(BUILDING_LIBCURL)
107#define CURL_EXTERN  __declspec(dllexport)
108#else
109#define CURL_EXTERN  __declspec(dllimport)
110#endif
111#else
112
113#ifdef CURL_HIDDEN_SYMBOLS
114/*
115 * This definition is used to make external definitions visible in the
116 * shared library when symbols are hidden by default.  It makes no
117 * difference when compiling applications whether this is set or not,
118 * only when compiling the library.
119 */
120#define CURL_EXTERN CURL_EXTERN_SYMBOL
121#else
122#define CURL_EXTERN
123#endif
124#endif
125
126#ifndef curl_socket_typedef
127/* socket typedef */
128#ifdef WIN32
129typedef SOCKET curl_socket_t;
130#define CURL_SOCKET_BAD INVALID_SOCKET
131#else
132typedef int curl_socket_t;
133#define CURL_SOCKET_BAD -1
134#endif
135#define curl_socket_typedef
136#endif /* curl_socket_typedef */
137
138struct curl_httppost {
139  struct curl_httppost *next;       /* next entry in the list */
140  char *name;                       /* pointer to allocated name */
141  long namelength;                  /* length of name length */
142  char *contents;                   /* pointer to allocated data contents */
143  long contentslength;              /* length of contents field */
144  char *buffer;                     /* pointer to allocated buffer contents */
145  long bufferlength;                /* length of buffer field */
146  char *contenttype;                /* Content-Type */
147  struct curl_slist* contentheader; /* list of extra headers for this form */
148  struct curl_httppost *more;       /* if one field name has more than one
149                                       file, this link should link to following
150                                       files */
151  long flags;                       /* as defined below */
152#define HTTPPOST_FILENAME (1<<0)    /* specified content is a file name */
153#define HTTPPOST_READFILE (1<<1)    /* specified content is a file name */
154#define HTTPPOST_PTRNAME (1<<2)     /* name is only stored pointer
155                                       do not free in formfree */
156#define HTTPPOST_PTRCONTENTS (1<<3) /* contents is only stored pointer
157                                       do not free in formfree */
158#define HTTPPOST_BUFFER (1<<4)      /* upload file from buffer */
159#define HTTPPOST_PTRBUFFER (1<<5)   /* upload file from pointer contents */
160#define HTTPPOST_CALLBACK (1<<6)    /* upload file contents by using the
161                                       regular read callback to get the data
162                                       and pass the given pointer as custom
163                                       pointer */
164
165  char *showfilename;               /* The file name to show. If not set, the
166                                       actual file name will be used (if this
167                                       is a file part) */
168  void *userp;                      /* custom pointer used for
169                                       HTTPPOST_CALLBACK posts */
170};
171
172typedef int (*curl_progress_callback)(void *clientp,
173                                      double dltotal,
174                                      double dlnow,
175                                      double ultotal,
176                                      double ulnow);
177
178#ifndef CURL_MAX_WRITE_SIZE
179  /* Tests have proven that 20K is a very bad buffer size for uploads on
180     Windows, while 16K for some odd reason performed a lot better.
181     We do the ifndef check to allow this value to easier be changed at build
182     time for those who feel adventurous. */
183#define CURL_MAX_WRITE_SIZE 16384
184#endif
185
186#ifndef CURL_MAX_HTTP_HEADER
187/* The only reason to have a max limit for this is to avoid the risk of a bad
188   server feeding libcurl with a never-ending header that will cause reallocs
189   infinitely */
190#define CURL_MAX_HTTP_HEADER (100*1024)
191#endif
192
193
194/* This is a magic return code for the write callback that, when returned,
195   will signal libcurl to pause receiving on the current transfer. */
196#define CURL_WRITEFUNC_PAUSE 0x10000001
197typedef size_t (*curl_write_callback)(char *buffer,
198                                      size_t size,
199                                      size_t nitems,
200                                      void *outstream);
201
202/* These are the return codes for the seek callbacks */
203#define CURL_SEEKFUNC_OK       0
204#define CURL_SEEKFUNC_FAIL     1 /* fail the entire transfer */
205#define CURL_SEEKFUNC_CANTSEEK 2 /* tell libcurl seeking can't be done, so
206                                    libcurl might try other means instead */
207typedef int (*curl_seek_callback)(void *instream,
208                                  curl_off_t offset,
209                                  int origin); /* 'whence' */
210
211/* This is a return code for the read callback that, when returned, will
212   signal libcurl to immediately abort the current transfer. */
213#define CURL_READFUNC_ABORT 0x10000000
214/* This is a return code for the read callback that, when returned, will
215   signal libcurl to pause sending data on the current transfer. */
216#define CURL_READFUNC_PAUSE 0x10000001
217
218typedef size_t (*curl_read_callback)(char *buffer,
219                                      size_t size,
220                                      size_t nitems,
221                                      void *instream);
222
223typedef enum  {
224  CURLSOCKTYPE_IPCXN, /* socket created for a specific IP connection */
225  CURLSOCKTYPE_LAST   /* never use */
226} curlsocktype;
227
228typedef int (*curl_sockopt_callback)(void *clientp,
229                                     curl_socket_t curlfd,
230                                     curlsocktype purpose);
231
232struct curl_sockaddr {
233  int family;
234  int socktype;
235  int protocol;
236  unsigned int addrlen; /* addrlen was a socklen_t type before 7.18.0 but it
237                           turned really ugly and painful on the systems that
238                           lack this type */
239  struct sockaddr addr;
240};
241
242typedef curl_socket_t
243(*curl_opensocket_callback)(void *clientp,
244                            curlsocktype purpose,
245                            struct curl_sockaddr *address);
246
247#ifndef CURL_NO_OLDIES
248  /* not used since 7.10.8, will be removed in a future release */
249typedef int (*curl_passwd_callback)(void *clientp,
250                                    const char *prompt,
251                                    char *buffer,
252                                    int buflen);
253#endif
254
255typedef enum {
256  CURLIOE_OK,            /* I/O operation successful */
257  CURLIOE_UNKNOWNCMD,    /* command was unknown to callback */
258  CURLIOE_FAILRESTART,   /* failed to restart the read */
259  CURLIOE_LAST           /* never use */
260} curlioerr;
261
262typedef enum  {
263  CURLIOCMD_NOP,         /* no operation */
264  CURLIOCMD_RESTARTREAD, /* restart the read stream from start */
265  CURLIOCMD_LAST         /* never use */
266} curliocmd;
267
268typedef curlioerr (*curl_ioctl_callback)(CURL *handle,
269                                         int cmd,
270                                         void *clientp);
271
272/*
273 * The following typedef's are signatures of malloc, free, realloc, strdup and
274 * calloc respectively.  Function pointers of these types can be passed to the
275 * curl_global_init_mem() function to set user defined memory management
276 * callback routines.
277 */
278typedef void *(*curl_malloc_callback)(size_t size);
279typedef void (*curl_free_callback)(void *ptr);
280typedef void *(*curl_realloc_callback)(void *ptr, size_t size);
281typedef char *(*curl_strdup_callback)(const char *str);
282typedef void *(*curl_calloc_callback)(size_t nmemb, size_t size);
283
284/* the kind of data that is passed to information_callback*/
285typedef enum {
286  CURLINFO_TEXT = 0,
287  CURLINFO_HEADER_IN,    /* 1 */
288  CURLINFO_HEADER_OUT,   /* 2 */
289  CURLINFO_DATA_IN,      /* 3 */
290  CURLINFO_DATA_OUT,     /* 4 */
291  CURLINFO_SSL_DATA_IN,  /* 5 */
292  CURLINFO_SSL_DATA_OUT, /* 6 */
293  CURLINFO_END
294} curl_infotype;
295
296typedef int (*curl_debug_callback)
297       (CURL *handle,      /* the handle/transfer this concerns */
298        curl_infotype type, /* what kind of data */
299        char *data,        /* points to the data */
300        size_t size,       /* size of the data pointed to */
301        void *userptr);    /* whatever the user please */
302
303/* All possible error codes from all sorts of curl functions. Future versions
304   may return other values, stay prepared.
305
306   Always add new return codes last. Never *EVER* remove any. The return
307   codes must remain the same!
308 */
309
310typedef enum {
311  CURLE_OK = 0,
312  CURLE_UNSUPPORTED_PROTOCOL,    /* 1 */
313  CURLE_FAILED_INIT,             /* 2 */
314  CURLE_URL_MALFORMAT,           /* 3 */
315  CURLE_OBSOLETE4,               /* 4 - NOT USED */
316  CURLE_COULDNT_RESOLVE_PROXY,   /* 5 */
317  CURLE_COULDNT_RESOLVE_HOST,    /* 6 */
318  CURLE_COULDNT_CONNECT,         /* 7 */
319  CURLE_FTP_WEIRD_SERVER_REPLY,  /* 8 */
320  CURLE_REMOTE_ACCESS_DENIED,    /* 9 a service was denied by the server
321                                    due to lack of access - when login fails
322                                    this is not returned. */
323  CURLE_OBSOLETE10,              /* 10 - NOT USED */
324  CURLE_FTP_WEIRD_PASS_REPLY,    /* 11 */
325  CURLE_OBSOLETE12,              /* 12 - NOT USED */
326  CURLE_FTP_WEIRD_PASV_REPLY,    /* 13 */
327  CURLE_FTP_WEIRD_227_FORMAT,    /* 14 */
328  CURLE_FTP_CANT_GET_HOST,       /* 15 */
329  CURLE_OBSOLETE16,              /* 16 - NOT USED */
330  CURLE_FTP_COULDNT_SET_TYPE,    /* 17 */
331  CURLE_PARTIAL_FILE,            /* 18 */
332  CURLE_FTP_COULDNT_RETR_FILE,   /* 19 */
333  CURLE_OBSOLETE20,              /* 20 - NOT USED */
334  CURLE_QUOTE_ERROR,             /* 21 - quote command failure */
335  CURLE_HTTP_RETURNED_ERROR,     /* 22 */
336  CURLE_WRITE_ERROR,             /* 23 */
337  CURLE_OBSOLETE24,              /* 24 - NOT USED */
338  CURLE_UPLOAD_FAILED,           /* 25 - failed upload "command" */
339  CURLE_READ_ERROR,              /* 26 - couldn't open/read from file */
340  CURLE_OUT_OF_MEMORY,           /* 27 */
341  /* Note: CURLE_OUT_OF_MEMORY may sometimes indicate a conversion error
342           instead of a memory allocation error if CURL_DOES_CONVERSIONS
343           is defined
344  */
345  CURLE_OPERATION_TIMEDOUT,      /* 28 - the timeout time was reached */
346  CURLE_OBSOLETE29,              /* 29 - NOT USED */
347  CURLE_FTP_PORT_FAILED,         /* 30 - FTP PORT operation failed */
348  CURLE_FTP_COULDNT_USE_REST,    /* 31 - the REST command failed */
349  CURLE_OBSOLETE32,              /* 32 - NOT USED */
350  CURLE_RANGE_ERROR,             /* 33 - RANGE "command" didn't work */
351  CURLE_HTTP_POST_ERROR,         /* 34 */
352  CURLE_SSL_CONNECT_ERROR,       /* 35 - wrong when connecting with SSL */
353  CURLE_BAD_DOWNLOAD_RESUME,     /* 36 - couldn't resume download */
354  CURLE_FILE_COULDNT_READ_FILE,  /* 37 */
355  CURLE_LDAP_CANNOT_BIND,        /* 38 */
356  CURLE_LDAP_SEARCH_FAILED,      /* 39 */
357  CURLE_OBSOLETE40,              /* 40 - NOT USED */
358  CURLE_FUNCTION_NOT_FOUND,      /* 41 */
359  CURLE_ABORTED_BY_CALLBACK,     /* 42 */
360  CURLE_BAD_FUNCTION_ARGUMENT,   /* 43 */
361  CURLE_OBSOLETE44,              /* 44 - NOT USED */
362  CURLE_INTERFACE_FAILED,        /* 45 - CURLOPT_INTERFACE failed */
363  CURLE_OBSOLETE46,              /* 46 - NOT USED */
364  CURLE_TOO_MANY_REDIRECTS ,     /* 47 - catch endless re-direct loops */
365  CURLE_UNKNOWN_TELNET_OPTION,   /* 48 - User specified an unknown option */
366  CURLE_TELNET_OPTION_SYNTAX ,   /* 49 - Malformed telnet option */
367  CURLE_OBSOLETE50,              /* 50 - NOT USED */
368  CURLE_PEER_FAILED_VERIFICATION, /* 51 - peer's certificate or fingerprint
369                                     wasn't verified fine */
370  CURLE_GOT_NOTHING,             /* 52 - when this is a specific error */
371  CURLE_SSL_ENGINE_NOTFOUND,     /* 53 - SSL crypto engine not found */
372  CURLE_SSL_ENGINE_SETFAILED,    /* 54 - can not set SSL crypto engine as
373                                    default */
374  CURLE_SEND_ERROR,              /* 55 - failed sending network data */
375  CURLE_RECV_ERROR,              /* 56 - failure in receiving network data */
376  CURLE_OBSOLETE57,              /* 57 - NOT IN USE */
377  CURLE_SSL_CERTPROBLEM,         /* 58 - problem with the local certificate */
378  CURLE_SSL_CIPHER,              /* 59 - couldn't use specified cipher */
379  CURLE_SSL_CACERT,              /* 60 - problem with the CA cert (path?) */
380  CURLE_BAD_CONTENT_ENCODING,    /* 61 - Unrecognized transfer encoding */
381  CURLE_LDAP_INVALID_URL,        /* 62 - Invalid LDAP URL */
382  CURLE_FILESIZE_EXCEEDED,       /* 63 - Maximum file size exceeded */
383  CURLE_USE_SSL_FAILED,          /* 64 - Requested FTP SSL level failed */
384  CURLE_SEND_FAIL_REWIND,        /* 65 - Sending the data requires a rewind
385                                    that failed */
386  CURLE_SSL_ENGINE_INITFAILED,   /* 66 - failed to initialise ENGINE */
387  CURLE_LOGIN_DENIED,            /* 67 - user, password or similar was not
388                                    accepted and we failed to login */
389  CURLE_TFTP_NOTFOUND,           /* 68 - file not found on server */
390  CURLE_TFTP_PERM,               /* 69 - permission problem on server */
391  CURLE_REMOTE_DISK_FULL,        /* 70 - out of disk space on server */
392  CURLE_TFTP_ILLEGAL,            /* 71 - Illegal TFTP operation */
393  CURLE_TFTP_UNKNOWNID,          /* 72 - Unknown transfer ID */
394  CURLE_REMOTE_FILE_EXISTS,      /* 73 - File already exists */
395  CURLE_TFTP_NOSUCHUSER,         /* 74 - No such user */
396  CURLE_CONV_FAILED,             /* 75 - conversion failed */
397  CURLE_CONV_REQD,               /* 76 - caller must register conversion
398                                    callbacks using curl_easy_setopt options
399                                    CURLOPT_CONV_FROM_NETWORK_FUNCTION,
400                                    CURLOPT_CONV_TO_NETWORK_FUNCTION, and
401                                    CURLOPT_CONV_FROM_UTF8_FUNCTION */
402  CURLE_SSL_CACERT_BADFILE,      /* 77 - could not load CACERT file, missing
403                                    or wrong format */
404  CURLE_REMOTE_FILE_NOT_FOUND,   /* 78 - remote file not found */
405  CURLE_SSH,                     /* 79 - error from the SSH layer, somewhat
406                                    generic so the error message will be of
407                                    interest when this has happened */
408
409  CURLE_SSL_SHUTDOWN_FAILED,     /* 80 - Failed to shut down the SSL
410                                    connection */
411  CURLE_AGAIN,                   /* 81 - socket is not ready for send/recv,
412                                    wait till it's ready and try again (Added
413                                    in 7.18.2) */
414  CURLE_SSL_CRL_BADFILE,         /* 82 - could not load CRL file, missing or
415                                    wrong format (Added in 7.19.0) */
416  CURLE_SSL_ISSUER_ERROR,        /* 83 - Issuer check failed.  (Added in
417                                    7.19.0) */
418  CURL_LAST /* never use! */
419} CURLcode;
420
421#ifndef CURL_NO_OLDIES /* define this to test if your app builds with all
422                          the obsolete stuff removed! */
423
424/* Backwards compatibility with older names */
425
426/* The following were added in 7.17.1 */
427/* These are scheduled to disappear by 2009 */
428#define CURLE_SSL_PEER_CERTIFICATE CURLE_PEER_FAILED_VERIFICATION
429
430/* The following were added in 7.17.0 */
431/* These are scheduled to disappear by 2009 */
432#define CURLE_OBSOLETE CURLE_OBSOLETE50 /* noone should be using this! */
433#define CURLE_BAD_PASSWORD_ENTERED CURLE_OBSOLETE46
434#define CURLE_BAD_CALLING_ORDER CURLE_OBSOLETE44
435#define CURLE_FTP_USER_PASSWORD_INCORRECT CURLE_OBSOLETE10
436#define CURLE_FTP_CANT_RECONNECT CURLE_OBSOLETE16
437#define CURLE_FTP_COULDNT_GET_SIZE CURLE_OBSOLETE32
438#define CURLE_FTP_COULDNT_SET_ASCII CURLE_OBSOLETE29
439#define CURLE_FTP_WEIRD_USER_REPLY CURLE_OBSOLETE12
440#define CURLE_FTP_WRITE_ERROR CURLE_OBSOLETE20
441#define CURLE_LIBRARY_NOT_FOUND CURLE_OBSOLETE40
442#define CURLE_MALFORMAT_USER CURLE_OBSOLETE24
443#define CURLE_SHARE_IN_USE CURLE_OBSOLETE57
444#define CURLE_URL_MALFORMAT_USER CURLE_OBSOLETE4
445
446#define CURLE_FTP_ACCESS_DENIED CURLE_REMOTE_ACCESS_DENIED
447#define CURLE_FTP_COULDNT_SET_BINARY CURLE_FTP_COULDNT_SET_TYPE
448#define CURLE_FTP_QUOTE_ERROR CURLE_QUOTE_ERROR
449#define CURLE_TFTP_DISKFULL CURLE_REMOTE_DISK_FULL
450#define CURLE_TFTP_EXISTS CURLE_REMOTE_FILE_EXISTS
451#define CURLE_HTTP_RANGE_ERROR CURLE_RANGE_ERROR
452#define CURLE_FTP_SSL_FAILED CURLE_USE_SSL_FAILED
453
454/* The following were added earlier */
455
456#define CURLE_OPERATION_TIMEOUTED CURLE_OPERATION_TIMEDOUT
457
458#define CURLE_HTTP_NOT_FOUND CURLE_HTTP_RETURNED_ERROR
459#define CURLE_HTTP_PORT_FAILED CURLE_INTERFACE_FAILED
460#define CURLE_FTP_COULDNT_STOR_FILE CURLE_UPLOAD_FAILED
461
462#define CURLE_FTP_PARTIAL_FILE CURLE_PARTIAL_FILE
463#define CURLE_FTP_BAD_DOWNLOAD_RESUME CURLE_BAD_DOWNLOAD_RESUME
464
465/* This was the error code 50 in 7.7.3 and a few earlier versions, this
466   is no longer used by libcurl but is instead #defined here only to not
467   make programs break */
468#define CURLE_ALREADY_COMPLETE 99999
469
470#endif /*!CURL_NO_OLDIES*/
471
472/* This prototype applies to all conversion callbacks */
473typedef CURLcode (*curl_conv_callback)(char *buffer, size_t length);
474
475typedef CURLcode (*curl_ssl_ctx_callback)(CURL *curl,    /* easy handle */
476                                          void *ssl_ctx, /* actually an
477                                                            OpenSSL SSL_CTX */
478                                          void *userptr);
479
480typedef enum {
481  CURLPROXY_HTTP = 0,   /* added in 7.10, new in 7.19.4 default is to use
482                           CONNECT HTTP/1.1 */
483  CURLPROXY_HTTP_1_0 = 1,   /* added in 7.19.4, force to use CONNECT
484                               HTTP/1.0  */
485  CURLPROXY_SOCKS4 = 4, /* support added in 7.15.2, enum existed already
486                           in 7.10 */
487  CURLPROXY_SOCKS5 = 5, /* added in 7.10 */
488  CURLPROXY_SOCKS4A = 6, /* added in 7.18.0 */
489  CURLPROXY_SOCKS5_HOSTNAME = 7 /* Use the SOCKS5 protocol but pass along the
490                                   host name rather than the IP address. added
491                                   in 7.18.0 */
492} curl_proxytype;  /* this enum was added in 7.10 */
493
494#define CURLAUTH_NONE         0       /* nothing */
495#define CURLAUTH_BASIC        (1<<0)  /* Basic (default) */
496#define CURLAUTH_DIGEST       (1<<1)  /* Digest */
497#define CURLAUTH_GSSNEGOTIATE (1<<2)  /* GSS-Negotiate */
498#define CURLAUTH_NTLM         (1<<3)  /* NTLM */
499#define CURLAUTH_DIGEST_IE    (1<<4)  /* Digest with IE flavour */
500#define CURLAUTH_ANY (~CURLAUTH_DIGEST_IE)  /* all fine types set */
501#define CURLAUTH_ANYSAFE (~(CURLAUTH_BASIC|CURLAUTH_DIGEST_IE))
502
503#define CURLSSH_AUTH_ANY       ~0     /* all types supported by the server */
504#define CURLSSH_AUTH_NONE      0      /* none allowed, silly but complete */
505#define CURLSSH_AUTH_PUBLICKEY (1<<0) /* public/private key files */
506#define CURLSSH_AUTH_PASSWORD  (1<<1) /* password */
507#define CURLSSH_AUTH_HOST      (1<<2) /* host key files */
508#define CURLSSH_AUTH_KEYBOARD  (1<<3) /* keyboard interactive */
509#define CURLSSH_AUTH_DEFAULT CURLSSH_AUTH_ANY
510
511#define CURL_ERROR_SIZE 256
512
513struct curl_khkey {
514  const char *key; /* points to a zero-terminated string encoded with base64
515                      if len is zero, otherwise to the "raw" data */
516  size_t len;
517  enum type {
518    CURLKHTYPE_UNKNOWN,
519    CURLKHTYPE_RSA1,
520    CURLKHTYPE_RSA,
521    CURLKHTYPE_DSS
522  } keytype;
523};
524
525/* this is the set of return values expected from the curl_sshkeycallback
526   callback */
527enum curl_khstat {
528  CURLKHSTAT_FINE_ADD_TO_FILE,
529  CURLKHSTAT_FINE,
530  CURLKHSTAT_REJECT, /* reject the connection, return an error */
531  CURLKHSTAT_DEFER,  /* do not accept it, but we can't answer right now so
532                        this causes a CURLE_DEFER error but otherwise the
533                        connection will be left intact etc */
534  CURLKHSTAT_LAST    /* not for use, only a marker for last-in-list */
535};
536
537/* this is the set of status codes pass in to the callback */
538enum curl_khmatch {
539  CURLKHMATCH_OK,       /* match */
540  CURLKHMATCH_MISMATCH, /* host found, key mismatch! */
541  CURLKHMATCH_MISSING,  /* no matching host/key found */
542  CURLKHMATCH_LAST      /* not for use, only a marker for last-in-list */
543};
544
545typedef int
546  (*curl_sshkeycallback) (CURL *easy,     /* easy handle */
547                          const struct curl_khkey *knownkey, /* known */
548                          const struct curl_khkey *foundkey, /* found */
549                          enum curl_khmatch, /* libcurl's view on the keys */
550                          void *clientp); /* custom pointer passed from app */
551
552/* parameter for the CURLOPT_USE_SSL option */
553typedef enum {
554  CURLUSESSL_NONE,    /* do not attempt to use SSL */
555  CURLUSESSL_TRY,     /* try using SSL, proceed anyway otherwise */
556  CURLUSESSL_CONTROL, /* SSL for the control connection or fail */
557  CURLUSESSL_ALL,     /* SSL for all communication or fail */
558  CURLUSESSL_LAST     /* not an option, never use */
559} curl_usessl;
560
561#ifndef CURL_NO_OLDIES /* define this to test if your app builds with all
562                          the obsolete stuff removed! */
563
564/* Backwards compatibility with older names */
565/* These are scheduled to disappear by 2009 */
566
567#define CURLFTPSSL_NONE CURLUSESSL_NONE
568#define CURLFTPSSL_TRY CURLUSESSL_TRY
569#define CURLFTPSSL_CONTROL CURLUSESSL_CONTROL
570#define CURLFTPSSL_ALL CURLUSESSL_ALL
571#define CURLFTPSSL_LAST CURLUSESSL_LAST
572#define curl_ftpssl curl_usessl
573#endif /*!CURL_NO_OLDIES*/
574
575/* parameter for the CURLOPT_FTP_SSL_CCC option */
576typedef enum {
577  CURLFTPSSL_CCC_NONE,    /* do not send CCC */
578  CURLFTPSSL_CCC_PASSIVE, /* Let the server initiate the shutdown */
579  CURLFTPSSL_CCC_ACTIVE,  /* Initiate the shutdown */
580  CURLFTPSSL_CCC_LAST     /* not an option, never use */
581} curl_ftpccc;
582
583/* parameter for the CURLOPT_FTPSSLAUTH option */
584typedef enum {
585  CURLFTPAUTH_DEFAULT, /* let libcurl decide */
586  CURLFTPAUTH_SSL,     /* use "AUTH SSL" */
587  CURLFTPAUTH_TLS,     /* use "AUTH TLS" */
588  CURLFTPAUTH_LAST /* not an option, never use */
589} curl_ftpauth;
590
591/* parameter for the CURLOPT_FTP_CREATE_MISSING_DIRS option */
592typedef enum {
593  CURLFTP_CREATE_DIR_NONE,  /* do NOT create missing dirs! */
594  CURLFTP_CREATE_DIR,       /* (FTP/SFTP) if CWD fails, try MKD and then CWD
595                               again if MKD succeeded, for SFTP this does
596                               similar magic */
597  CURLFTP_CREATE_DIR_RETRY, /* (FTP only) if CWD fails, try MKD and then CWD
598                               again even if MKD failed! */
599  CURLFTP_CREATE_DIR_LAST   /* not an option, never use */
600} curl_ftpcreatedir;
601
602/* parameter for the CURLOPT_FTP_FILEMETHOD option */
603typedef enum {
604  CURLFTPMETHOD_DEFAULT,   /* let libcurl pick */
605  CURLFTPMETHOD_MULTICWD,  /* single CWD operation for each path part */
606  CURLFTPMETHOD_NOCWD,     /* no CWD at all */
607  CURLFTPMETHOD_SINGLECWD, /* one CWD to full dir, then work on file */
608  CURLFTPMETHOD_LAST       /* not an option, never use */
609} curl_ftpmethod;
610
611/* CURLPROTO_ defines are for the CURLOPT_*PROTOCOLS options */
612#define CURLPROTO_HTTP   (1<<0)
613#define CURLPROTO_HTTPS  (1<<1)
614#define CURLPROTO_FTP    (1<<2)
615#define CURLPROTO_FTPS   (1<<3)
616#define CURLPROTO_SCP    (1<<4)
617#define CURLPROTO_SFTP   (1<<5)
618#define CURLPROTO_TELNET (1<<6)
619#define CURLPROTO_LDAP   (1<<7)
620#define CURLPROTO_LDAPS  (1<<8)
621#define CURLPROTO_DICT   (1<<9)
622#define CURLPROTO_FILE   (1<<10)
623#define CURLPROTO_TFTP   (1<<11)
624#define CURLPROTO_ALL    (~0) /* enable everything */
625
626/* long may be 32 or 64 bits, but we should never depend on anything else
627   but 32 */
628#define CURLOPTTYPE_LONG          0
629#define CURLOPTTYPE_OBJECTPOINT   10000
630#define CURLOPTTYPE_FUNCTIONPOINT 20000
631#define CURLOPTTYPE_OFF_T         30000
632
633/* name is uppercase CURLOPT_<name>,
634   type is one of the defined CURLOPTTYPE_<type>
635   number is unique identifier */
636#ifdef CINIT
637#undef CINIT
638#endif
639
640#ifdef CURL_ISOCPP
641#define CINIT(name,type,number) CURLOPT_ ## name = CURLOPTTYPE_ ## type + number
642#else
643/* The macro "##" is ISO C, we assume pre-ISO C doesn't support it. */
644#define LONG          CURLOPTTYPE_LONG
645#define OBJECTPOINT   CURLOPTTYPE_OBJECTPOINT
646#define FUNCTIONPOINT CURLOPTTYPE_FUNCTIONPOINT
647#define OFF_T         CURLOPTTYPE_OFF_T
648#define CINIT(name,type,number) CURLOPT_/**/name = type + number
649#endif
650
651/*
652 * This macro-mania below setups the CURLOPT_[what] enum, to be used with
653 * curl_easy_setopt(). The first argument in the CINIT() macro is the [what]
654 * word.
655 */
656
657typedef enum {
658  /* This is the FILE * or void * the regular output should be written to. */
659  CINIT(FILE, OBJECTPOINT, 1),
660
661  /* The full URL to get/put */
662  CINIT(URL,  OBJECTPOINT, 2),
663
664  /* Port number to connect to, if other than default. */
665  CINIT(PORT, LONG, 3),
666
667  /* Name of proxy to use. */
668  CINIT(PROXY, OBJECTPOINT, 4),
669
670  /* "name:password" to use when fetching. */
671  CINIT(USERPWD, OBJECTPOINT, 5),
672
673  /* "name:password" to use with proxy. */
674  CINIT(PROXYUSERPWD, OBJECTPOINT, 6),
675
676  /* Range to get, specified as an ASCII string. */
677  CINIT(RANGE, OBJECTPOINT, 7),
678
679  /* not used */
680
681  /* Specified file stream to upload from (use as input): */
682  CINIT(INFILE, OBJECTPOINT, 9),
683
684  /* Buffer to receive error messages in, must be at least CURL_ERROR_SIZE
685   * bytes big. If this is not used, error messages go to stderr instead: */
686  CINIT(ERRORBUFFER, OBJECTPOINT, 10),
687
688  /* Function that will be called to store the output (instead of fwrite). The
689   * parameters will use fwrite() syntax, make sure to follow them. */
690  CINIT(WRITEFUNCTION, FUNCTIONPOINT, 11),
691
692  /* Function that will be called to read the input (instead of fread). The
693   * parameters will use fread() syntax, make sure to follow them. */
694  CINIT(READFUNCTION, FUNCTIONPOINT, 12),
695
696  /* Time-out the read operation after this amount of seconds */
697  CINIT(TIMEOUT, LONG, 13),
698
699  /* If the CURLOPT_INFILE is used, this can be used to inform libcurl about
700   * how large the file being sent really is. That allows better error
701   * checking and better verifies that the upload was successful. -1 means
702   * unknown size.
703   *
704   * For large file support, there is also a _LARGE version of the key
705   * which takes an off_t type, allowing platforms with larger off_t
706   * sizes to handle larger files.  See below for INFILESIZE_LARGE.
707   */
708  CINIT(INFILESIZE, LONG, 14),
709
710  /* POST static input fields. */
711  CINIT(POSTFIELDS, OBJECTPOINT, 15),
712
713  /* Set the referrer page (needed by some CGIs) */
714  CINIT(REFERER, OBJECTPOINT, 16),
715
716  /* Set the FTP PORT string (interface name, named or numerical IP address)
717     Use i.e '-' to use default address. */
718  CINIT(FTPPORT, OBJECTPOINT, 17),
719
720  /* Set the User-Agent string (examined by some CGIs) */
721  CINIT(USERAGENT, OBJECTPOINT, 18),
722
723  /* If the download receives less than "low speed limit" bytes/second
724   * during "low speed time" seconds, the operations is aborted.
725   * You could i.e if you have a pretty high speed connection, abort if
726   * it is less than 2000 bytes/sec during 20 seconds.
727   */
728
729  /* Set the "low speed limit" */
730  CINIT(LOW_SPEED_LIMIT, LONG, 19),
731
732  /* Set the "low speed time" */
733  CINIT(LOW_SPEED_TIME, LONG, 20),
734
735  /* Set the continuation offset.
736   *
737   * Note there is also a _LARGE version of this key which uses
738   * off_t types, allowing for large file offsets on platforms which
739   * use larger-than-32-bit off_t's.  Look below for RESUME_FROM_LARGE.
740   */
741  CINIT(RESUME_FROM, LONG, 21),
742
743  /* Set cookie in request: */
744  CINIT(COOKIE, OBJECTPOINT, 22),
745
746  /* This points to a linked list of headers, struct curl_slist kind */
747  CINIT(HTTPHEADER, OBJECTPOINT, 23),
748
749  /* This points to a linked list of post entries, struct curl_httppost */
750  CINIT(HTTPPOST, OBJECTPOINT, 24),
751
752  /* name of the file keeping your private SSL-certificate */
753  CINIT(SSLCERT, OBJECTPOINT, 25),
754
755  /* password for the SSL or SSH private key */
756  CINIT(KEYPASSWD, OBJECTPOINT, 26),
757
758  /* send TYPE parameter? */
759  CINIT(CRLF, LONG, 27),
760
761  /* send linked-list of QUOTE commands */
762  CINIT(QUOTE, OBJECTPOINT, 28),
763
764  /* send FILE * or void * to store headers to, if you use a callback it
765     is simply passed to the callback unmodified */
766  CINIT(WRITEHEADER, OBJECTPOINT, 29),
767
768  /* point to a file to read the initial cookies from, also enables
769     "cookie awareness" */
770  CINIT(COOKIEFILE, OBJECTPOINT, 31),
771
772  /* What version to specifically try to use.
773     See CURL_SSLVERSION defines below. */
774  CINIT(SSLVERSION, LONG, 32),
775
776  /* What kind of HTTP time condition to use, see defines */
777  CINIT(TIMECONDITION, LONG, 33),
778
779  /* Time to use with the above condition. Specified in number of seconds
780     since 1 Jan 1970 */
781  CINIT(TIMEVALUE, LONG, 34),
782
783  /* 35 = OBSOLETE */
784
785  /* Custom request, for customizing the get command like
786     HTTP: DELETE, TRACE and others
787     FTP: to use a different list command
788     */
789  CINIT(CUSTOMREQUEST, OBJECTPOINT, 36),
790
791  /* HTTP request, for odd commands like DELETE, TRACE and others */
792  CINIT(STDERR, OBJECTPOINT, 37),
793
794  /* 38 is not used */
795
796  /* send linked-list of post-transfer QUOTE commands */
797  CINIT(POSTQUOTE, OBJECTPOINT, 39),
798
799  /* Pass a pointer to string of the output using full variable-replacement
800     as described elsewhere. */
801  CINIT(WRITEINFO, OBJECTPOINT, 40),
802
803  CINIT(VERBOSE, LONG, 41),      /* talk a lot */
804  CINIT(HEADER, LONG, 42),       /* throw the header out too */
805  CINIT(NOPROGRESS, LONG, 43),   /* shut off the progress meter */
806  CINIT(NOBODY, LONG, 44),       /* use HEAD to get http document */
807  CINIT(FAILONERROR, LONG, 45),  /* no output on http error codes >= 300 */
808  CINIT(UPLOAD, LONG, 46),       /* this is an upload */
809  CINIT(POST, LONG, 47),         /* HTTP POST method */
810  CINIT(DIRLISTONLY, LONG, 48),  /* return bare names when listing directories */
811
812  CINIT(APPEND, LONG, 50),       /* Append instead of overwrite on upload! */
813
814  /* Specify whether to read the user+password from the .netrc or the URL.
815   * This must be one of the CURL_NETRC_* enums below. */
816  CINIT(NETRC, LONG, 51),
817
818  CINIT(FOLLOWLOCATION, LONG, 52),  /* use Location: Luke! */
819
820  CINIT(TRANSFERTEXT, LONG, 53), /* transfer data in text/ASCII format */
821  CINIT(PUT, LONG, 54),          /* HTTP PUT */
822
823  /* 55 = OBSOLETE */
824
825  /* Function that will be called instead of the internal progress display
826   * function. This function should be defined as the curl_progress_callback
827   * prototype defines. */
828  CINIT(PROGRESSFUNCTION, FUNCTIONPOINT, 56),
829
830  /* Data passed to the progress callback */
831  CINIT(PROGRESSDATA, OBJECTPOINT, 57),
832
833  /* We want the referrer field set automatically when following locations */
834  CINIT(AUTOREFERER, LONG, 58),
835
836  /* Port of the proxy, can be set in the proxy string as well with:
837     "[host]:[port]" */
838  CINIT(PROXYPORT, LONG, 59),
839
840  /* size of the POST input data, if strlen() is not good to use */
841  CINIT(POSTFIELDSIZE, LONG, 60),
842
843  /* tunnel non-http operations through a HTTP proxy */
844  CINIT(HTTPPROXYTUNNEL, LONG, 61),
845
846  /* Set the interface string to use as outgoing network interface */
847  CINIT(INTERFACE, OBJECTPOINT, 62),
848
849  /* Set the krb4/5 security level, this also enables krb4/5 awareness.  This
850   * is a string, 'clear', 'safe', 'confidential' or 'private'.  If the string
851   * is set but doesn't match one of these, 'private' will be used.  */
852  CINIT(KRBLEVEL, OBJECTPOINT, 63),
853
854  /* Set if we should verify the peer in ssl handshake, set 1 to verify. */
855  CINIT(SSL_VERIFYPEER, LONG, 64),
856
857  /* The CApath or CAfile used to validate the peer certificate
858     this option is used only if SSL_VERIFYPEER is true */
859  CINIT(CAINFO, OBJECTPOINT, 65),
860
861  /* 66 = OBSOLETE */
862  /* 67 = OBSOLETE */
863
864  /* Maximum number of http redirects to follow */
865  CINIT(MAXREDIRS, LONG, 68),
866
867  /* Pass a long set to 1 to get the date of the requested document (if
868     possible)! Pass a zero to shut it off. */
869  CINIT(FILETIME, LONG, 69),
870
871  /* This points to a linked list of telnet options */
872  CINIT(TELNETOPTIONS, OBJECTPOINT, 70),
873
874  /* Max amount of cached alive connections */
875  CINIT(MAXCONNECTS, LONG, 71),
876
877  /* What policy to use when closing connections when the cache is filled
878     up */
879  CINIT(CLOSEPOLICY, LONG, 72),
880
881  /* 73 = OBSOLETE */
882
883  /* Set to explicitly use a new connection for the upcoming transfer.
884     Do not use this unless you're absolutely sure of this, as it makes the
885     operation slower and is less friendly for the network. */
886  CINIT(FRESH_CONNECT, LONG, 74),
887
888  /* Set to explicitly forbid the upcoming transfer's connection to be re-used
889     when done. Do not use this unless you're absolutely sure of this, as it
890     makes the operation slower and is less friendly for the network. */
891  CINIT(FORBID_REUSE, LONG, 75),
892
893  /* Set to a file name that contains random data for libcurl to use to
894     seed the random engine when doing SSL connects. */
895  CINIT(RANDOM_FILE, OBJECTPOINT, 76),
896
897  /* Set to the Entropy Gathering Daemon socket pathname */
898  CINIT(EGDSOCKET, OBJECTPOINT, 77),
899
900  /* Time-out connect operations after this amount of seconds, if connects
901     are OK within this time, then fine... This only aborts the connect
902     phase. [Only works on unix-style/SIGALRM operating systems] */
903  CINIT(CONNECTTIMEOUT, LONG, 78),
904
905  /* Function that will be called to store headers (instead of fwrite). The
906   * parameters will use fwrite() syntax, make sure to follow them. */
907  CINIT(HEADERFUNCTION, FUNCTIONPOINT, 79),
908
909  /* Set this to force the HTTP request to get back to GET. Only really usable
910     if POST, PUT or a custom request have been used first.
911   */
912  CINIT(HTTPGET, LONG, 80),
913
914  /* Set if we should verify the Common name from the peer certificate in ssl
915   * handshake, set 1 to check existence, 2 to ensure that it matches the
916   * provided hostname. */
917  CINIT(SSL_VERIFYHOST, LONG, 81),
918
919  /* Specify which file name to write all known cookies in after completed
920     operation. Set file name to "-" (dash) to make it go to stdout. */
921  CINIT(COOKIEJAR, OBJECTPOINT, 82),
922
923  /* Specify which SSL ciphers to use */
924  CINIT(SSL_CIPHER_LIST, OBJECTPOINT, 83),
925
926  /* Specify which HTTP version to use! This must be set to one of the
927     CURL_HTTP_VERSION* enums set below. */
928  CINIT(HTTP_VERSION, LONG, 84),
929
930  /* Specifically switch on or off the FTP engine's use of the EPSV command. By
931     default, that one will always be attempted before the more traditional
932     PASV command. */
933  CINIT(FTP_USE_EPSV, LONG, 85),
934
935  /* type of the file keeping your SSL-certificate ("DER", "PEM", "ENG") */
936  CINIT(SSLCERTTYPE, OBJECTPOINT, 86),
937
938  /* name of the file keeping your private SSL-key */
939  CINIT(SSLKEY, OBJECTPOINT, 87),
940
941  /* type of the file keeping your private SSL-key ("DER", "PEM", "ENG") */
942  CINIT(SSLKEYTYPE, OBJECTPOINT, 88),
943
944  /* crypto engine for the SSL-sub system */
945  CINIT(SSLENGINE, OBJECTPOINT, 89),
946
947  /* set the crypto engine for the SSL-sub system as default
948     the param has no meaning...
949   */
950  CINIT(SSLENGINE_DEFAULT, LONG, 90),
951
952  /* Non-zero value means to use the global dns cache */
953  CINIT(DNS_USE_GLOBAL_CACHE, LONG, 91), /* To become OBSOLETE soon */
954
955  /* DNS cache timeout */
956  CINIT(DNS_CACHE_TIMEOUT, LONG, 92),
957
958  /* send linked-list of pre-transfer QUOTE commands */
959  CINIT(PREQUOTE, OBJECTPOINT, 93),
960
961  /* set the debug function */
962  CINIT(DEBUGFUNCTION, FUNCTIONPOINT, 94),
963
964  /* set the data for the debug function */
965  CINIT(DEBUGDATA, OBJECTPOINT, 95),
966
967  /* mark this as start of a cookie session */
968  CINIT(COOKIESESSION, LONG, 96),
969
970  /* The CApath directory used to validate the peer certificate
971     this option is used only if SSL_VERIFYPEER is true */
972  CINIT(CAPATH, OBJECTPOINT, 97),
973
974  /* Instruct libcurl to use a smaller receive buffer */
975  CINIT(BUFFERSIZE, LONG, 98),
976
977  /* Instruct libcurl to not use any signal/alarm handlers, even when using
978     timeouts. This option is useful for multi-threaded applications.
979     See libcurl-the-guide for more background information. */
980  CINIT(NOSIGNAL, LONG, 99),
981
982  /* Provide a CURLShare for mutexing non-ts data */
983  CINIT(SHARE, OBJECTPOINT, 100),
984
985  /* indicates type of proxy. accepted values are CURLPROXY_HTTP (default),
986     CURLPROXY_SOCKS4, CURLPROXY_SOCKS4A and CURLPROXY_SOCKS5. */
987  CINIT(PROXYTYPE, LONG, 101),
988
989  /* Set the Accept-Encoding string. Use this to tell a server you would like
990     the response to be compressed. */
991  CINIT(ENCODING, OBJECTPOINT, 102),
992
993  /* Set pointer to private data */
994  CINIT(PRIVATE, OBJECTPOINT, 103),
995
996  /* Set aliases for HTTP 200 in the HTTP Response header */
997  CINIT(HTTP200ALIASES, OBJECTPOINT, 104),
998
999  /* Continue to send authentication (user+password) when following locations,
1000     even when hostname changed. This can potentially send off the name
1001     and password to whatever host the server decides. */
1002  CINIT(UNRESTRICTED_AUTH, LONG, 105),
1003
1004  /* Specifically switch on or off the FTP engine's use of the EPRT command ( it
1005     also disables the LPRT attempt). By default, those ones will always be
1006     attempted before the good old traditional PORT command. */
1007  CINIT(FTP_USE_EPRT, LONG, 106),
1008
1009  /* Set this to a bitmask value to enable the particular authentications
1010     methods you like. Use this in combination with CURLOPT_USERPWD.
1011     Note that setting multiple bits may cause extra network round-trips. */
1012  CINIT(HTTPAUTH, LONG, 107),
1013
1014  /* Set the ssl context callback function, currently only for OpenSSL ssl_ctx
1015     in second argument. The function must be matching the
1016     curl_ssl_ctx_callback proto. */
1017  CINIT(SSL_CTX_FUNCTION, FUNCTIONPOINT, 108),
1018
1019  /* Set the userdata for the ssl context callback function's third
1020     argument */
1021  CINIT(SSL_CTX_DATA, OBJECTPOINT, 109),
1022
1023  /* FTP Option that causes missing dirs to be created on the remote server.
1024     In 7.19.4 we introduced the convenience enums for this option using the
1025     CURLFTP_CREATE_DIR prefix.
1026  */
1027  CINIT(FTP_CREATE_MISSING_DIRS, LONG, 110),
1028
1029  /* Set this to a bitmask value to enable the particular authentications
1030     methods you like. Use this in combination with CURLOPT_PROXYUSERPWD.
1031     Note that setting multiple bits may cause extra network round-trips. */
1032  CINIT(PROXYAUTH, LONG, 111),
1033
1034  /* FTP option that changes the timeout, in seconds, associated with
1035     getting a response.  This is different from transfer timeout time and
1036     essentially places a demand on the FTP server to acknowledge commands
1037     in a timely manner. */
1038  CINIT(FTP_RESPONSE_TIMEOUT, LONG, 112),
1039
1040  /* Set this option to one of the CURL_IPRESOLVE_* defines (see below) to
1041     tell libcurl to resolve names to those IP versions only. This only has
1042     affect on systems with support for more than one, i.e IPv4 _and_ IPv6. */
1043  CINIT(IPRESOLVE, LONG, 113),
1044
1045  /* Set this option to limit the size of a file that will be downloaded from
1046     an HTTP or FTP server.
1047
1048     Note there is also _LARGE version which adds large file support for
1049     platforms which have larger off_t sizes.  See MAXFILESIZE_LARGE below. */
1050  CINIT(MAXFILESIZE, LONG, 114),
1051
1052  /* See the comment for INFILESIZE above, but in short, specifies
1053   * the size of the file being uploaded.  -1 means unknown.
1054   */
1055  CINIT(INFILESIZE_LARGE, OFF_T, 115),
1056
1057  /* Sets the continuation offset.  There is also a LONG version of this;
1058   * look above for RESUME_FROM.
1059   */
1060  CINIT(RESUME_FROM_LARGE, OFF_T, 116),
1061
1062  /* Sets the maximum size of data that will be downloaded from
1063   * an HTTP or FTP server.  See MAXFILESIZE above for the LONG version.
1064   */
1065  CINIT(MAXFILESIZE_LARGE, OFF_T, 117),
1066
1067  /* Set this option to the file name of your .netrc file you want libcurl
1068     to parse (using the CURLOPT_NETRC option). If not set, libcurl will do
1069     a poor attempt to find the user's home directory and check for a .netrc
1070     file in there. */
1071  CINIT(NETRC_FILE, OBJECTPOINT, 118),
1072
1073  /* Enable SSL/TLS for FTP, pick one of:
1074     CURLFTPSSL_TRY     - try using SSL, proceed anyway otherwise
1075     CURLFTPSSL_CONTROL - SSL for the control connection or fail
1076     CURLFTPSSL_ALL     - SSL for all communication or fail
1077  */
1078  CINIT(USE_SSL, LONG, 119),
1079
1080  /* The _LARGE version of the standard POSTFIELDSIZE option */
1081  CINIT(POSTFIELDSIZE_LARGE, OFF_T, 120),
1082
1083  /* Enable/disable the TCP Nagle algorithm */
1084  CINIT(TCP_NODELAY, LONG, 121),
1085
1086  /* 122 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
1087  /* 123 OBSOLETE. Gone in 7.16.0 */
1088  /* 124 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
1089  /* 125 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
1090  /* 126 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
1091  /* 127 OBSOLETE. Gone in 7.16.0 */
1092  /* 128 OBSOLETE. Gone in 7.16.0 */
1093
1094  /* When FTP over SSL/TLS is selected (with CURLOPT_USE_SSL), this option
1095     can be used to change libcurl's default action which is to first try
1096     "AUTH SSL" and then "AUTH TLS" in this order, and proceed when a OK
1097     response has been received.
1098
1099     Available parameters are:
1100     CURLFTPAUTH_DEFAULT - let libcurl decide
1101     CURLFTPAUTH_SSL     - try "AUTH SSL" first, then TLS
1102     CURLFTPAUTH_TLS     - try "AUTH TLS" first, then SSL
1103  */
1104  CINIT(FTPSSLAUTH, LONG, 129),
1105
1106  CINIT(IOCTLFUNCTION, FUNCTIONPOINT, 130),
1107  CINIT(IOCTLDATA, OBJECTPOINT, 131),
1108
1109  /* 132 OBSOLETE. Gone in 7.16.0 */
1110  /* 133 OBSOLETE. Gone in 7.16.0 */
1111
1112  /* zero terminated string for pass on to the FTP server when asked for
1113     "account" info */
1114  CINIT(FTP_ACCOUNT, OBJECTPOINT, 134),
1115
1116  /* feed cookies into cookie engine */
1117  CINIT(COOKIELIST, OBJECTPOINT, 135),
1118
1119  /* ignore Content-Length */
1120  CINIT(IGNORE_CONTENT_LENGTH, LONG, 136),
1121
1122  /* Set to non-zero to skip the IP address received in a 227 PASV FTP server
1123     response. Typically used for FTP-SSL purposes but is not restricted to
1124     that. libcurl will then instead use the same IP address it used for the
1125     control connection. */
1126  CINIT(FTP_SKIP_PASV_IP, LONG, 137),
1127
1128  /* Select "file method" to use when doing FTP, see the curl_ftpmethod
1129     above. */
1130  CINIT(FTP_FILEMETHOD, LONG, 138),
1131
1132  /* Local port number to bind the socket to */
1133  CINIT(LOCALPORT, LONG, 139),
1134
1135  /* Number of ports to try, including the first one set with LOCALPORT.
1136     Thus, setting it to 1 will make no additional attempts but the first.
1137  */
1138  CINIT(LOCALPORTRANGE, LONG, 140),
1139
1140  /* no transfer, set up connection and let application use the socket by
1141     extracting it with CURLINFO_LASTSOCKET */
1142  CINIT(CONNECT_ONLY, LONG, 141),
1143
1144  /* Function that will be called to convert from the
1145     network encoding (instead of using the iconv calls in libcurl) */
1146  CINIT(CONV_FROM_NETWORK_FUNCTION, FUNCTIONPOINT, 142),
1147
1148  /* Function that will be called to convert to the
1149     network encoding (instead of using the iconv calls in libcurl) */
1150  CINIT(CONV_TO_NETWORK_FUNCTION, FUNCTIONPOINT, 143),
1151
1152  /* Function that will be called to convert from UTF8
1153     (instead of using the iconv calls in libcurl)
1154     Note that this is used only for SSL certificate processing */
1155  CINIT(CONV_FROM_UTF8_FUNCTION, FUNCTIONPOINT, 144),
1156
1157  /* if the connection proceeds too quickly then need to slow it down */
1158  /* limit-rate: maximum number of bytes per second to send or receive */
1159  CINIT(MAX_SEND_SPEED_LARGE, OFF_T, 145),
1160  CINIT(MAX_RECV_SPEED_LARGE, OFF_T, 146),
1161
1162  /* Pointer to command string to send if USER/PASS fails. */
1163  CINIT(FTP_ALTERNATIVE_TO_USER, OBJECTPOINT, 147),
1164
1165  /* callback function for setting socket options */
1166  CINIT(SOCKOPTFUNCTION, FUNCTIONPOINT, 148),
1167  CINIT(SOCKOPTDATA, OBJECTPOINT, 149),
1168
1169  /* set to 0 to disable session ID re-use for this transfer, default is
1170     enabled (== 1) */
1171  CINIT(SSL_SESSIONID_CACHE, LONG, 150),
1172
1173  /* allowed SSH authentication methods */
1174  CINIT(SSH_AUTH_TYPES, LONG, 151),
1175
1176  /* Used by scp/sftp to do public/private key authentication */
1177  CINIT(SSH_PUBLIC_KEYFILE, OBJECTPOINT, 152),
1178  CINIT(SSH_PRIVATE_KEYFILE, OBJECTPOINT, 153),
1179
1180  /* Send CCC (Clear Command Channel) after authentication */
1181  CINIT(FTP_SSL_CCC, LONG, 154),
1182
1183  /* Same as TIMEOUT and CONNECTTIMEOUT, but with ms resolution */
1184  CINIT(TIMEOUT_MS, LONG, 155),
1185  CINIT(CONNECTTIMEOUT_MS, LONG, 156),
1186
1187  /* set to zero to disable the libcurl's decoding and thus pass the raw body
1188     data to the application even when it is encoded/compressed */
1189  CINIT(HTTP_TRANSFER_DECODING, LONG, 157),
1190  CINIT(HTTP_CONTENT_DECODING, LONG, 158),
1191
1192  /* Permission used when creating new files and directories on the remote
1193     server for protocols that support it, SFTP/SCP/FILE */
1194  CINIT(NEW_FILE_PERMS, LONG, 159),
1195  CINIT(NEW_DIRECTORY_PERMS, LONG, 160),
1196
1197  /* Set the behaviour of POST when redirecting. Values must be set to one
1198     of CURL_REDIR* defines below. This used to be called CURLOPT_POST301 */
1199  CINIT(POSTREDIR, LONG, 161),
1200
1201  /* used by scp/sftp to verify the host's public key */
1202  CINIT(SSH_HOST_PUBLIC_KEY_MD5, OBJECTPOINT, 162),
1203
1204  /* Callback function for opening socket (instead of socket(2)). Optionally,
1205     callback is able change the address or refuse to connect returning
1206     CURL_SOCKET_BAD.  The callback should have type
1207     curl_opensocket_callback */
1208  CINIT(OPENSOCKETFUNCTION, FUNCTIONPOINT, 163),
1209  CINIT(OPENSOCKETDATA, OBJECTPOINT, 164),
1210
1211  /* POST volatile input fields. */
1212  CINIT(COPYPOSTFIELDS, OBJECTPOINT, 165),
1213
1214  /* set transfer mode (;type=<a|i>) when doing FTP via an HTTP proxy */
1215  CINIT(PROXY_TRANSFER_MODE, LONG, 166),
1216
1217  /* Callback function for seeking in the input stream */
1218  CINIT(SEEKFUNCTION, FUNCTIONPOINT, 167),
1219  CINIT(SEEKDATA, OBJECTPOINT, 168),
1220
1221  /* CRL file */
1222  CINIT(CRLFILE, OBJECTPOINT, 169),
1223
1224  /* Issuer certificate */
1225  CINIT(ISSUERCERT, OBJECTPOINT, 170),
1226
1227  /* (IPv6) Address scope */
1228  CINIT(ADDRESS_SCOPE, LONG, 171),
1229
1230  /* Collect certificate chain info and allow it to get retrievable with
1231     CURLINFO_CERTINFO after the transfer is complete. (Unfortunately) only
1232     working with OpenSSL-powered builds. */
1233  CINIT(CERTINFO, LONG, 172),
1234
1235  /* "name" and "pwd" to use when fetching. */
1236  CINIT(USERNAME, OBJECTPOINT, 173),
1237  CINIT(PASSWORD, OBJECTPOINT, 174),
1238
1239    /* "name" and "pwd" to use with Proxy when fetching. */
1240  CINIT(PROXYUSERNAME, OBJECTPOINT, 175),
1241  CINIT(PROXYPASSWORD, OBJECTPOINT, 176),
1242
1243  /* Comma separated list of hostnames defining no-proxy zones. These should
1244     match both hostnames directly, and hostnames within a domain. For
1245     example, local.com will match local.com and www.local.com, but NOT
1246     notlocal.com or www.notlocal.com. For compatibility with other
1247     implementations of this, .local.com will be considered to be the same as
1248     local.com. A single * is the only valid wildcard, and effectively
1249     disables the use of proxy. */
1250  CINIT(NOPROXY, OBJECTPOINT, 177),
1251
1252  /* block size for TFTP transfers */
1253  CINIT(TFTP_BLKSIZE, LONG, 178),
1254
1255  /* Socks Service */
1256  CINIT(SOCKS5_GSSAPI_SERVICE, OBJECTPOINT, 179),
1257
1258  /* Socks Service */
1259  CINIT(SOCKS5_GSSAPI_NEC, LONG, 180),
1260
1261  /* set the bitmask for the protocols that are allowed to be used for the
1262     transfer, which thus helps the app which takes URLs from users or other
1263     external inputs and want to restrict what protocol(s) to deal
1264     with. Defaults to CURLPROTO_ALL. */
1265  CINIT(PROTOCOLS, LONG, 181),
1266
1267  /* set the bitmask for the protocols that libcurl is allowed to follow to,
1268     as a subset of the CURLOPT_PROTOCOLS ones. That means the protocol needs
1269     to be set in both bitmasks to be allowed to get redirected to. Defaults
1270     to all protocols except FILE and SCP. */
1271  CINIT(REDIR_PROTOCOLS, LONG, 182),
1272
1273  /* set the SSH knownhost file name to use */
1274  CINIT(SSH_KNOWNHOSTS, OBJECTPOINT, 183),
1275
1276  /* set the SSH host key callback, must point to a curl_sshkeycallback
1277     function */
1278  CINIT(SSH_KEYFUNCTION, FUNCTIONPOINT, 184),
1279
1280  /* set the SSH host key callback custom pointer */
1281  CINIT(SSH_KEYDATA, OBJECTPOINT, 185),
1282
1283  CURLOPT_LASTENTRY /* the last unused */
1284} CURLoption;
1285
1286#ifndef CURL_NO_OLDIES /* define this to test if your app builds with all
1287                          the obsolete stuff removed! */
1288
1289/* Backwards compatibility with older names */
1290/* These are scheduled to disappear by 2011 */
1291
1292/* This was added in version 7.19.1 */
1293#define CURLOPT_POST301 CURLOPT_POSTREDIR
1294
1295/* These are scheduled to disappear by 2009 */
1296
1297/* The following were added in 7.17.0 */
1298#define CURLOPT_SSLKEYPASSWD CURLOPT_KEYPASSWD
1299#define CURLOPT_FTPAPPEND CURLOPT_APPEND
1300#define CURLOPT_FTPLISTONLY CURLOPT_DIRLISTONLY
1301#define CURLOPT_FTP_SSL CURLOPT_USE_SSL
1302
1303/* The following were added earlier */
1304
1305#define CURLOPT_SSLCERTPASSWD CURLOPT_KEYPASSWD
1306#define CURLOPT_KRB4LEVEL CURLOPT_KRBLEVEL
1307
1308#else
1309/* This is set if CURL_NO_OLDIES is defined at compile-time */
1310#undef CURLOPT_DNS_USE_GLOBAL_CACHE /* soon obsolete */
1311#endif
1312
1313
1314  /* Below here follows defines for the CURLOPT_IPRESOLVE option. If a host
1315     name resolves addresses using more than one IP protocol version, this
1316     option might be handy to force libcurl to use a specific IP version. */
1317#define CURL_IPRESOLVE_WHATEVER 0 /* default, resolves addresses to all IP
1318                                     versions that your system allows */
1319#define CURL_IPRESOLVE_V4       1 /* resolve to ipv4 addresses */
1320#define CURL_IPRESOLVE_V6       2 /* resolve to ipv6 addresses */
1321
1322  /* three convenient "aliases" that follow the name scheme better */
1323#define CURLOPT_WRITEDATA CURLOPT_FILE
1324#define CURLOPT_READDATA  CURLOPT_INFILE
1325#define CURLOPT_HEADERDATA CURLOPT_WRITEHEADER
1326
1327  /* These enums are for use with the CURLOPT_HTTP_VERSION option. */
1328enum {
1329  CURL_HTTP_VERSION_NONE, /* setting this means we don't care, and that we'd
1330                             like the library to choose the best possible
1331                             for us! */
1332  CURL_HTTP_VERSION_1_0,  /* please use HTTP 1.0 in the request */
1333  CURL_HTTP_VERSION_1_1,  /* please use HTTP 1.1 in the request */
1334
1335  CURL_HTTP_VERSION_LAST /* *ILLEGAL* http version */
1336};
1337
1338  /* These enums are for use with the CURLOPT_NETRC option. */
1339enum CURL_NETRC_OPTION {
1340  CURL_NETRC_IGNORED,     /* The .netrc will never be read.
1341                           * This is the default. */
1342  CURL_NETRC_OPTIONAL,    /* A user:password in the URL will be preferred
1343                           * to one in the .netrc. */
1344  CURL_NETRC_REQUIRED,    /* A user:password in the URL will be ignored.
1345                           * Unless one is set programmatically, the .netrc
1346                           * will be queried. */
1347  CURL_NETRC_LAST
1348};
1349
1350enum {
1351  CURL_SSLVERSION_DEFAULT,
1352  CURL_SSLVERSION_TLSv1,
1353  CURL_SSLVERSION_SSLv2,
1354  CURL_SSLVERSION_SSLv3,
1355
1356  CURL_SSLVERSION_LAST /* never use, keep last */
1357};
1358
1359/* symbols to use with CURLOPT_POSTREDIR.
1360   CURL_REDIR_POST_301 and CURL_REDIR_POST_302 can be bitwise ORed so that
1361   CURL_REDIR_POST_301 | CURL_REDIR_POST_302 == CURL_REDIR_POST_ALL */
1362
1363#define CURL_REDIR_GET_ALL  0
1364#define CURL_REDIR_POST_301 1
1365#define CURL_REDIR_POST_302 2
1366#define CURL_REDIR_POST_ALL (CURL_REDIR_POST_301|CURL_REDIR_POST_302)
1367
1368typedef enum {
1369  CURL_TIMECOND_NONE,
1370
1371  CURL_TIMECOND_IFMODSINCE,
1372  CURL_TIMECOND_IFUNMODSINCE,
1373  CURL_TIMECOND_LASTMOD,
1374
1375  CURL_TIMECOND_LAST
1376} curl_TimeCond;
1377
1378
1379/* curl_strequal() and curl_strnequal() are subject for removal in a future
1380   libcurl, see lib/README.curlx for details */
1381CURL_EXTERN int (curl_strequal)(const char *s1, const char *s2);
1382CURL_EXTERN int (curl_strnequal)(const char *s1, const char *s2, size_t n);
1383
1384/* name is uppercase CURLFORM_<name> */
1385#ifdef CFINIT
1386#undef CFINIT
1387#endif
1388
1389#ifdef CURL_ISOCPP
1390#define CFINIT(name) CURLFORM_ ## name
1391#else
1392/* The macro "##" is ISO C, we assume pre-ISO C doesn't support it. */
1393#define CFINIT(name) CURLFORM_/**/name
1394#endif
1395
1396typedef enum {
1397  CFINIT(NOTHING),        /********* the first one is unused ************/
1398
1399  /*  */
1400  CFINIT(COPYNAME),
1401  CFINIT(PTRNAME),
1402  CFINIT(NAMELENGTH),
1403  CFINIT(COPYCONTENTS),
1404  CFINIT(PTRCONTENTS),
1405  CFINIT(CONTENTSLENGTH),
1406  CFINIT(FILECONTENT),
1407  CFINIT(ARRAY),
1408  CFINIT(OBSOLETE),
1409  CFINIT(FILE),
1410
1411  CFINIT(BUFFER),
1412  CFINIT(BUFFERPTR),
1413  CFINIT(BUFFERLENGTH),
1414
1415  CFINIT(CONTENTTYPE),
1416  CFINIT(CONTENTHEADER),
1417  CFINIT(FILENAME),
1418  CFINIT(END),
1419  CFINIT(OBSOLETE2),
1420
1421  CFINIT(STREAM),
1422
1423  CURLFORM_LASTENTRY /* the last unused */
1424} CURLformoption;
1425
1426#undef CFINIT /* done */
1427
1428/* structure to be used as parameter for CURLFORM_ARRAY */
1429struct curl_forms {
1430  CURLformoption option;
1431  const char     *value;
1432};
1433
1434/* use this for multipart formpost building */
1435/* Returns code for curl_formadd()
1436 *
1437 * Returns:
1438 * CURL_FORMADD_OK             on success
1439 * CURL_FORMADD_MEMORY         if the FormInfo allocation fails
1440 * CURL_FORMADD_OPTION_TWICE   if one option is given twice for one Form
1441 * CURL_FORMADD_NULL           if a null pointer was given for a char
1442 * CURL_FORMADD_MEMORY         if the allocation of a FormInfo struct failed
1443 * CURL_FORMADD_UNKNOWN_OPTION if an unknown option was used
1444 * CURL_FORMADD_INCOMPLETE     if the some FormInfo is not complete (or error)
1445 * CURL_FORMADD_MEMORY         if a curl_httppost struct cannot be allocated
1446 * CURL_FORMADD_MEMORY         if some allocation for string copying failed.
1447 * CURL_FORMADD_ILLEGAL_ARRAY  if an illegal option is used in an array
1448 *
1449 ***************************************************************************/
1450typedef enum {
1451  CURL_FORMADD_OK, /* first, no error */
1452
1453  CURL_FORMADD_MEMORY,
1454  CURL_FORMADD_OPTION_TWICE,
1455  CURL_FORMADD_NULL,
1456  CURL_FORMADD_UNKNOWN_OPTION,
1457  CURL_FORMADD_INCOMPLETE,
1458  CURL_FORMADD_ILLEGAL_ARRAY,
1459  CURL_FORMADD_DISABLED, /* libcurl was built with this disabled */
1460
1461  CURL_FORMADD_LAST /* last */
1462} CURLFORMcode;
1463
1464/*
1465 * NAME curl_formadd()
1466 *
1467 * DESCRIPTION
1468 *
1469 * Pretty advanced function for building multi-part formposts. Each invoke
1470 * adds one part that together construct a full post. Then use
1471 * CURLOPT_HTTPPOST to send it off to libcurl.
1472 */
1473CURL_EXTERN CURLFORMcode curl_formadd(struct curl_httppost **httppost,
1474                                      struct curl_httppost **last_post,
1475                                      ...);
1476
1477/*
1478 * callback function for curl_formget()
1479 * The void *arg pointer will be the one passed as second argument to
1480 *   curl_formget().
1481 * The character buffer passed to it must not be freed.
1482 * Should return the buffer length passed to it as the argument "len" on
1483 *   success.
1484 */
1485typedef size_t (*curl_formget_callback)(void *arg, const char *buf, size_t len);
1486
1487/*
1488 * NAME curl_formget()
1489 *
1490 * DESCRIPTION
1491 *
1492 * Serialize a curl_httppost struct built with curl_formadd().
1493 * Accepts a void pointer as second argument which will be passed to
1494 * the curl_formget_callback function.
1495 * Returns 0 on success.
1496 */
1497CURL_EXTERN int curl_formget(struct curl_httppost *form, void *arg,
1498                             curl_formget_callback append);
1499/*
1500 * NAME curl_formfree()
1501 *
1502 * DESCRIPTION
1503 *
1504 * Free a multipart formpost previously built with curl_formadd().
1505 */
1506CURL_EXTERN void curl_formfree(struct curl_httppost *form);
1507
1508/*
1509 * NAME curl_getenv()
1510 *
1511 * DESCRIPTION
1512 *
1513 * Returns a malloc()'ed string that MUST be curl_free()ed after usage is
1514 * complete. DEPRECATED - see lib/README.curlx
1515 */
1516CURL_EXTERN char *curl_getenv(const char *variable);
1517
1518/*
1519 * NAME curl_version()
1520 *
1521 * DESCRIPTION
1522 *
1523 * Returns a static ascii string of the libcurl version.
1524 */
1525CURL_EXTERN char *curl_version(void);
1526
1527/*
1528 * NAME curl_easy_escape()
1529 *
1530 * DESCRIPTION
1531 *
1532 * Escapes URL strings (converts all letters consider illegal in URLs to their
1533 * %XX versions). This function returns a new allocated string or NULL if an
1534 * error occurred.
1535 */
1536CURL_EXTERN char *curl_easy_escape(CURL *handle,
1537                                   const char *string,
1538                                   int length);
1539
1540/* the previous version: */
1541CURL_EXTERN char *curl_escape(const char *string,
1542                              int length);
1543
1544
1545/*
1546 * NAME curl_easy_unescape()
1547 *
1548 * DESCRIPTION
1549 *
1550 * Unescapes URL encoding in strings (converts all %XX codes to their 8bit
1551 * versions). This function returns a new allocated string or NULL if an error
1552 * occurred.
1553 * Conversion Note: On non-ASCII platforms the ASCII %XX codes are
1554 * converted into the host encoding.
1555 */
1556CURL_EXTERN char *curl_easy_unescape(CURL *handle,
1557                                     const char *string,
1558                                     int length,
1559                                     int *outlength);
1560
1561/* the previous version */
1562CURL_EXTERN char *curl_unescape(const char *string,
1563                                int length);
1564
1565/*
1566 * NAME curl_free()
1567 *
1568 * DESCRIPTION
1569 *
1570 * Provided for de-allocation in the same translation unit that did the
1571 * allocation. Added in libcurl 7.10
1572 */
1573CURL_EXTERN void curl_free(void *p);
1574
1575/*
1576 * NAME curl_global_init()
1577 *
1578 * DESCRIPTION
1579 *
1580 * curl_global_init() should be invoked exactly once for each application that
1581 * uses libcurl and before any call of other libcurl functions.
1582 *
1583 * This function is not thread-safe!
1584 */
1585CURL_EXTERN CURLcode curl_global_init(long flags);
1586
1587/*
1588 * NAME curl_global_init_mem()
1589 *
1590 * DESCRIPTION
1591 *
1592 * curl_global_init() or curl_global_init_mem() should be invoked exactly once
1593 * for each application that uses libcurl.  This function can be used to
1594 * initialize libcurl and set user defined memory management callback
1595 * functions.  Users can implement memory management routines to check for
1596 * memory leaks, check for mis-use of the curl library etc.  User registered
1597 * callback routines with be invoked by this library instead of the system
1598 * memory management routines like malloc, free etc.
1599 */
1600CURL_EXTERN CURLcode curl_global_init_mem(long flags,
1601                                          curl_malloc_callback m,
1602                                          curl_free_callback f,
1603                                          curl_realloc_callback r,
1604                                          curl_strdup_callback s,
1605                                          curl_calloc_callback c);
1606
1607/*
1608 * NAME curl_global_cleanup()
1609 *
1610 * DESCRIPTION
1611 *
1612 * curl_global_cleanup() should be invoked exactly once for each application
1613 * that uses libcurl
1614 */
1615CURL_EXTERN void curl_global_cleanup(void);
1616
1617/* linked-list structure for the CURLOPT_QUOTE option (and other) */
1618struct curl_slist {
1619  char *data;
1620  struct curl_slist *next;
1621};
1622
1623/*
1624 * NAME curl_slist_append()
1625 *
1626 * DESCRIPTION
1627 *
1628 * Appends a string to a linked list. If no list exists, it will be created
1629 * first. Returns the new list, after appending.
1630 */
1631CURL_EXTERN struct curl_slist *curl_slist_append(struct curl_slist *,
1632                                                 const char *);
1633
1634/*
1635 * NAME curl_slist_free_all()
1636 *
1637 * DESCRIPTION
1638 *
1639 * free a previously built curl_slist.
1640 */
1641CURL_EXTERN void curl_slist_free_all(struct curl_slist *);
1642
1643/*
1644 * NAME curl_getdate()
1645 *
1646 * DESCRIPTION
1647 *
1648 * Returns the time, in seconds since 1 Jan 1970 of the time string given in
1649 * the first argument. The time argument in the second parameter is unused
1650 * and should be set to NULL.
1651 */
1652CURL_EXTERN time_t curl_getdate(const char *p, const time_t *unused);
1653
1654/* info about the certificate chain, only for OpenSSL builds. Asked
1655   for with CURLOPT_CERTINFO / CURLINFO_CERTINFO */
1656struct curl_certinfo {
1657  int num_of_certs;             /* number of certificates with information */
1658  struct curl_slist **certinfo; /* for each index in this array, there's a
1659                                   linked list with textual information in the
1660                                   format "name: value" */
1661};
1662
1663#define CURLINFO_STRING   0x100000
1664#define CURLINFO_LONG     0x200000
1665#define CURLINFO_DOUBLE   0x300000
1666#define CURLINFO_SLIST    0x400000
1667#define CURLINFO_MASK     0x0fffff
1668#define CURLINFO_TYPEMASK 0xf00000
1669
1670typedef enum {
1671  CURLINFO_NONE, /* first, never use this */
1672  CURLINFO_EFFECTIVE_URL    = CURLINFO_STRING + 1,
1673  CURLINFO_RESPONSE_CODE    = CURLINFO_LONG   + 2,
1674  CURLINFO_TOTAL_TIME       = CURLINFO_DOUBLE + 3,
1675  CURLINFO_NAMELOOKUP_TIME  = CURLINFO_DOUBLE + 4,
1676  CURLINFO_CONNECT_TIME     = CURLINFO_DOUBLE + 5,
1677  CURLINFO_PRETRANSFER_TIME = CURLINFO_DOUBLE + 6,
1678  CURLINFO_SIZE_UPLOAD      = CURLINFO_DOUBLE + 7,
1679  CURLINFO_SIZE_DOWNLOAD    = CURLINFO_DOUBLE + 8,
1680  CURLINFO_SPEED_DOWNLOAD   = CURLINFO_DOUBLE + 9,
1681  CURLINFO_SPEED_UPLOAD     = CURLINFO_DOUBLE + 10,
1682  CURLINFO_HEADER_SIZE      = CURLINFO_LONG   + 11,
1683  CURLINFO_REQUEST_SIZE     = CURLINFO_LONG   + 12,
1684  CURLINFO_SSL_VERIFYRESULT = CURLINFO_LONG   + 13,
1685  CURLINFO_FILETIME         = CURLINFO_LONG   + 14,
1686  CURLINFO_CONTENT_LENGTH_DOWNLOAD   = CURLINFO_DOUBLE + 15,
1687  CURLINFO_CONTENT_LENGTH_UPLOAD     = CURLINFO_DOUBLE + 16,
1688  CURLINFO_STARTTRANSFER_TIME = CURLINFO_DOUBLE + 17,
1689  CURLINFO_CONTENT_TYPE     = CURLINFO_STRING + 18,
1690  CURLINFO_REDIRECT_TIME    = CURLINFO_DOUBLE + 19,
1691  CURLINFO_REDIRECT_COUNT   = CURLINFO_LONG   + 20,
1692  CURLINFO_PRIVATE          = CURLINFO_STRING + 21,
1693  CURLINFO_HTTP_CONNECTCODE = CURLINFO_LONG   + 22,
1694  CURLINFO_HTTPAUTH_AVAIL   = CURLINFO_LONG   + 23,
1695  CURLINFO_PROXYAUTH_AVAIL  = CURLINFO_LONG   + 24,
1696  CURLINFO_OS_ERRNO         = CURLINFO_LONG   + 25,
1697  CURLINFO_NUM_CONNECTS     = CURLINFO_LONG   + 26,
1698  CURLINFO_SSL_ENGINES      = CURLINFO_SLIST  + 27,
1699  CURLINFO_COOKIELIST       = CURLINFO_SLIST  + 28,
1700  CURLINFO_LASTSOCKET       = CURLINFO_LONG   + 29,
1701  CURLINFO_FTP_ENTRY_PATH   = CURLINFO_STRING + 30,
1702  CURLINFO_REDIRECT_URL     = CURLINFO_STRING + 31,
1703  CURLINFO_PRIMARY_IP       = CURLINFO_STRING + 32,
1704  CURLINFO_APPCONNECT_TIME  = CURLINFO_DOUBLE + 33,
1705  CURLINFO_CERTINFO         = CURLINFO_SLIST  + 34,
1706  CURLINFO_CONDITION_UNMET  = CURLINFO_LONG   + 35,
1707  /* Fill in new entries below here! */
1708
1709  CURLINFO_LASTONE          = 35
1710} CURLINFO;
1711
1712/* CURLINFO_RESPONSE_CODE is the new name for the option previously known as
1713   CURLINFO_HTTP_CODE */
1714#define CURLINFO_HTTP_CODE CURLINFO_RESPONSE_CODE
1715
1716typedef enum {
1717  CURLCLOSEPOLICY_NONE, /* first, never use this */
1718
1719  CURLCLOSEPOLICY_OLDEST,
1720  CURLCLOSEPOLICY_LEAST_RECENTLY_USED,
1721  CURLCLOSEPOLICY_LEAST_TRAFFIC,
1722  CURLCLOSEPOLICY_SLOWEST,
1723  CURLCLOSEPOLICY_CALLBACK,
1724
1725  CURLCLOSEPOLICY_LAST /* last, never use this */
1726} curl_closepolicy;
1727
1728#define CURL_GLOBAL_SSL (1<<0)
1729#define CURL_GLOBAL_WIN32 (1<<1)
1730#define CURL_GLOBAL_ALL (CURL_GLOBAL_SSL|CURL_GLOBAL_WIN32)
1731#define CURL_GLOBAL_NOTHING 0
1732#define CURL_GLOBAL_DEFAULT CURL_GLOBAL_ALL
1733
1734
1735/*****************************************************************************
1736 * Setup defines, protos etc for the sharing stuff.
1737 */
1738
1739/* Different data locks for a single share */
1740typedef enum {
1741  CURL_LOCK_DATA_NONE = 0,
1742  /*  CURL_LOCK_DATA_SHARE is used internally to say that
1743   *  the locking is just made to change the internal state of the share
1744   *  itself.
1745   */
1746  CURL_LOCK_DATA_SHARE,
1747  CURL_LOCK_DATA_COOKIE,
1748  CURL_LOCK_DATA_DNS,
1749  CURL_LOCK_DATA_SSL_SESSION,
1750  CURL_LOCK_DATA_CONNECT,
1751  CURL_LOCK_DATA_LAST
1752} curl_lock_data;
1753
1754/* Different lock access types */
1755typedef enum {
1756  CURL_LOCK_ACCESS_NONE = 0,   /* unspecified action */
1757  CURL_LOCK_ACCESS_SHARED = 1, /* for read perhaps */
1758  CURL_LOCK_ACCESS_SINGLE = 2, /* for write perhaps */
1759  CURL_LOCK_ACCESS_LAST        /* never use */
1760} curl_lock_access;
1761
1762typedef void (*curl_lock_function)(CURL *handle,
1763                                   curl_lock_data data,
1764                                   curl_lock_access locktype,
1765                                   void *userptr);
1766typedef void (*curl_unlock_function)(CURL *handle,
1767                                     curl_lock_data data,
1768                                     void *userptr);
1769
1770typedef void CURLSH;
1771
1772typedef enum {
1773  CURLSHE_OK,  /* all is fine */
1774  CURLSHE_BAD_OPTION, /* 1 */
1775  CURLSHE_IN_USE,     /* 2 */
1776  CURLSHE_INVALID,    /* 3 */
1777  CURLSHE_NOMEM,      /* out of memory */
1778  CURLSHE_LAST /* never use */
1779} CURLSHcode;
1780
1781typedef enum {
1782  CURLSHOPT_NONE,  /* don't use */
1783  CURLSHOPT_SHARE,   /* specify a data type to share */
1784  CURLSHOPT_UNSHARE, /* specify which data type to stop sharing */
1785  CURLSHOPT_LOCKFUNC,   /* pass in a 'curl_lock_function' pointer */
1786  CURLSHOPT_UNLOCKFUNC, /* pass in a 'curl_unlock_function' pointer */
1787  CURLSHOPT_USERDATA,   /* pass in a user data pointer used in the lock/unlock
1788                           callback functions */
1789  CURLSHOPT_LAST  /* never use */
1790} CURLSHoption;
1791
1792CURL_EXTERN CURLSH *curl_share_init(void);
1793CURL_EXTERN CURLSHcode curl_share_setopt(CURLSH *, CURLSHoption option, ...);
1794CURL_EXTERN CURLSHcode curl_share_cleanup(CURLSH *);
1795
1796/****************************************************************************
1797 * Structures for querying information about the curl library at runtime.
1798 */
1799
1800typedef enum {
1801  CURLVERSION_FIRST,
1802  CURLVERSION_SECOND,
1803  CURLVERSION_THIRD,
1804  CURLVERSION_FOURTH,
1805  CURLVERSION_LAST /* never actually use this */
1806} CURLversion;
1807
1808/* The 'CURLVERSION_NOW' is the symbolic name meant to be used by
1809   basically all programs ever that want to get version information. It is
1810   meant to be a built-in version number for what kind of struct the caller
1811   expects. If the struct ever changes, we redefine the NOW to another enum
1812   from above. */
1813#define CURLVERSION_NOW CURLVERSION_FOURTH
1814
1815typedef struct {
1816  CURLversion age;          /* age of the returned struct */
1817  const char *version;      /* LIBCURL_VERSION */
1818  unsigned int version_num; /* LIBCURL_VERSION_NUM */
1819  const char *host;         /* OS/host/cpu/machine when configured */
1820  int features;             /* bitmask, see defines below */
1821  const char *ssl_version;  /* human readable string */
1822  long ssl_version_num;     /* not used anymore, always 0 */
1823  const char *libz_version; /* human readable string */
1824  /* protocols is terminated by an entry with a NULL protoname */
1825  const char * const *protocols;
1826
1827  /* The fields below this were added in CURLVERSION_SECOND */
1828  const char *ares;
1829  int ares_num;
1830
1831  /* This field was added in CURLVERSION_THIRD */
1832  const char *libidn;
1833
1834  /* These field were added in CURLVERSION_FOURTH */
1835
1836  /* Same as '_libiconv_version' if built with HAVE_ICONV */
1837  int iconv_ver_num;
1838
1839  const char *libssh_version; /* human readable string */
1840
1841} curl_version_info_data;
1842
1843#define CURL_VERSION_IPV6      (1<<0)  /* IPv6-enabled */
1844#define CURL_VERSION_KERBEROS4 (1<<1)  /* kerberos auth is supported */
1845#define CURL_VERSION_SSL       (1<<2)  /* SSL options are present */
1846#define CURL_VERSION_LIBZ      (1<<3)  /* libz features are present */
1847#define CURL_VERSION_NTLM      (1<<4)  /* NTLM auth is supported */
1848#define CURL_VERSION_GSSNEGOTIATE (1<<5) /* Negotiate auth support */
1849#define CURL_VERSION_DEBUG     (1<<6)  /* built with debug capabilities */
1850#define CURL_VERSION_ASYNCHDNS (1<<7)  /* asynchronous dns resolves */
1851#define CURL_VERSION_SPNEGO    (1<<8)  /* SPNEGO auth */
1852#define CURL_VERSION_LARGEFILE (1<<9)  /* supports files bigger than 2GB */
1853#define CURL_VERSION_IDN       (1<<10) /* International Domain Names support */
1854#define CURL_VERSION_SSPI      (1<<11) /* SSPI is supported */
1855#define CURL_VERSION_CONV      (1<<12) /* character conversions supported */
1856#define CURL_VERSION_CURLDEBUG (1<<13) /* debug memory tracking supported */
1857
1858/*
1859 * NAME curl_version_info()
1860 *
1861 * DESCRIPTION
1862 *
1863 * This function returns a pointer to a static copy of the version info
1864 * struct. See above.
1865 */
1866CURL_EXTERN curl_version_info_data *curl_version_info(CURLversion);
1867
1868/*
1869 * NAME curl_easy_strerror()
1870 *
1871 * DESCRIPTION
1872 *
1873 * The curl_easy_strerror function may be used to turn a CURLcode value
1874 * into the equivalent human readable error string.  This is useful
1875 * for printing meaningful error messages.
1876 */
1877CURL_EXTERN const char *curl_easy_strerror(CURLcode);
1878
1879/*
1880 * NAME curl_share_strerror()
1881 *
1882 * DESCRIPTION
1883 *
1884 * The curl_share_strerror function may be used to turn a CURLSHcode value
1885 * into the equivalent human readable error string.  This is useful
1886 * for printing meaningful error messages.
1887 */
1888CURL_EXTERN const char *curl_share_strerror(CURLSHcode);
1889
1890/*
1891 * NAME curl_easy_pause()
1892 *
1893 * DESCRIPTION
1894 *
1895 * The curl_easy_pause function pauses or unpauses transfers. Select the new
1896 * state by setting the bitmask, use the convenience defines below.
1897 *
1898 */
1899CURL_EXTERN CURLcode curl_easy_pause(CURL *handle, int bitmask);
1900
1901#define CURLPAUSE_RECV      (1<<0)
1902#define CURLPAUSE_RECV_CONT (0)
1903
1904#define CURLPAUSE_SEND      (1<<2)
1905#define CURLPAUSE_SEND_CONT (0)
1906
1907#define CURLPAUSE_ALL       (CURLPAUSE_RECV|CURLPAUSE_SEND)
1908#define CURLPAUSE_CONT      (CURLPAUSE_RECV_CONT|CURLPAUSE_SEND_CONT)
1909
1910#ifdef  __cplusplus
1911}
1912#endif
1913
1914/* unfortunately, the easy.h and multi.h include files need options and info
1915  stuff before they can be included! */
1916#include "easy.h" /* nothing in curl is fun without the easy stuff */
1917#include "multi.h"
1918
1919/* the typechecker doesn't work in C++ (yet) */
1920#if defined(__GNUC__) && defined(__GNUC_MINOR__) && \
1921    ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)) && \
1922    !defined(__cplusplus) && !defined(CURL_DISABLE_TYPECHECK)
1923#include "typecheck-gcc.h"
1924#else
1925#if defined(__STDC__) && (__STDC__ >= 1)
1926/* This preprocessor magic that replaces a call with the exact same call is
1927   only done to make sure application authors pass exactly three arguments
1928   to these functions. */
1929#define curl_easy_setopt(handle,opt,param) curl_easy_setopt(handle,opt,param)
1930#define curl_easy_getinfo(handle,info,arg) curl_easy_getinfo(handle,info,arg)
1931#define curl_share_setopt(share,opt,param) curl_share_setopt(share,opt,param)
1932#define curl_multi_setopt(handle,opt,param) curl_multi_setopt(handle,opt,param)
1933#endif /* __STDC__ >= 1 */
1934#endif /* gcc >= 4.3 && !__cplusplus */
1935
1936#endif /* __CURL_CURL_H */
1937