1 /***************************************************************************
3 * Project ___| | | | _ \| |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
8 * Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at http://curl.haxx.se/docs/copyright.html.
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
21 ***************************************************************************/
23 #include "curl_setup.h"
25 #ifdef HAVE_NETINET_IN_H
26 #include <netinet/in.h>
31 #ifdef HAVE_ARPA_INET_H
32 #include <arpa/inet.h>
37 #ifdef HAVE_SYS_IOCTL_H
38 #include <sys/ioctl.h>
41 #ifdef HAVE_SYS_PARAM_H
42 #include <sys/param.h>
51 #error "We can't compile without socket() support!"
61 #include <stringprep.h>
62 #ifdef HAVE_IDN_FREE_H
65 /* prototype from idn-free.h, not provided by libidn 0.4.5's make install! */
66 void idn_free (void *ptr);
69 /* if idn_free() was not found in this version of libidn use free() instead */
70 #define idn_free(x) (free)(x)
72 #elif defined(USE_WIN32_IDN)
73 /* prototype for curl_win32_idn_to_ascii() */
74 int curl_win32_idn_to_ascii(const char *in, char **out);
75 #endif /* USE_LIBIDN */
92 #include "content_encoding.h"
93 #include "http_digest.h"
94 #include "http_negotiate.h"
98 #include "speedcheck.h"
100 #include "warnless.h"
101 #include "non-ascii.h"
102 #include "inet_pton.h"
104 /* And now for the protocols */
111 #include "curl_ldap.h"
116 #include "inet_ntop.h"
117 #include "curl_ntlm.h"
118 #include "curl_ntlm_wb.h"
120 #include "curl_rtmp.h"
122 #include "http_proxy.h"
124 #include "conncache.h"
125 #include "multihandle.h"
126 #include "pipeline.h"
129 #define _MPRINTF_REPLACE /* use our functions only */
130 #include <curl/mprintf.h>
132 #include "curl_memory.h"
133 /* The last #include file should be: */
134 #include "memdebug.h"
136 /* Local static prototypes */
137 static struct connectdata *
138 find_oldest_idle_connection(struct SessionHandle *data);
139 static struct connectdata *
140 find_oldest_idle_connection_in_bundle(struct SessionHandle *data,
141 struct connectbundle *bundle);
142 static void conn_free(struct connectdata *conn);
143 static void signalPipeClose(struct curl_llist *pipeline, bool pipe_broke);
144 static CURLcode do_init(struct connectdata *conn);
145 static CURLcode parse_url_login(struct SessionHandle *data,
146 struct connectdata *conn,
147 char *user, char *passwd, char *options);
148 static CURLcode parse_login_details(const char *login, const size_t len,
149 char **userptr, char **passwdptr,
155 static const struct Curl_handler * const protocols[] = {
157 #ifndef CURL_DISABLE_HTTP
161 #if defined(USE_SSL) && !defined(CURL_DISABLE_HTTP)
165 #ifndef CURL_DISABLE_FTP
169 #if defined(USE_SSL) && !defined(CURL_DISABLE_FTP)
173 #ifndef CURL_DISABLE_TELNET
174 &Curl_handler_telnet,
177 #ifndef CURL_DISABLE_DICT
181 #ifndef CURL_DISABLE_LDAP
183 #if !defined(CURL_DISABLE_LDAPS) && \
184 ((defined(USE_OPENLDAP) && defined(USE_SSL)) || \
185 (!defined(USE_OPENLDAP) && defined(HAVE_LDAP_SSL)))
190 #ifndef CURL_DISABLE_FILE
194 #ifndef CURL_DISABLE_TFTP
203 #ifndef CURL_DISABLE_IMAP
210 #ifndef CURL_DISABLE_POP3
217 #ifndef CURL_DISABLE_SMTP
224 #ifndef CURL_DISABLE_RTSP
228 #ifndef CURL_DISABLE_GOPHER
229 &Curl_handler_gopher,
236 &Curl_handler_rtmpte,
238 &Curl_handler_rtmpts,
241 (struct Curl_handler *) NULL
245 * Dummy handler for undefined protocol schemes.
248 static const struct Curl_handler Curl_handler_dummy = {
249 "<no protocol>", /* scheme */
250 ZERO_NULL, /* setup_connection */
251 ZERO_NULL, /* do_it */
252 ZERO_NULL, /* done */
253 ZERO_NULL, /* do_more */
254 ZERO_NULL, /* connect_it */
255 ZERO_NULL, /* connecting */
256 ZERO_NULL, /* doing */
257 ZERO_NULL, /* proto_getsock */
258 ZERO_NULL, /* doing_getsock */
259 ZERO_NULL, /* domore_getsock */
260 ZERO_NULL, /* perform_getsock */
261 ZERO_NULL, /* disconnect */
262 ZERO_NULL, /* readwrite */
265 PROTOPT_NONE /* flags */
268 void Curl_freeset(struct SessionHandle *data)
270 /* Free all dynamic strings stored in the data->set substructure. */
272 for(i=(enum dupstring)0; i < STRING_LAST; i++)
273 Curl_safefree(data->set.str[i]);
275 if(data->change.referer_alloc) {
276 Curl_safefree(data->change.referer);
277 data->change.referer_alloc = FALSE;
279 data->change.referer = NULL;
282 static CURLcode setstropt(char **charp, char *s)
284 /* Release the previous storage at `charp' and replace by a dynamic storage
285 copy of `s'. Return CURLE_OK or CURLE_OUT_OF_MEMORY. */
287 Curl_safefree(*charp);
293 return CURLE_OUT_OF_MEMORY;
301 static CURLcode setstropt_userpwd(char *option, char **userp, char **passwdp,
304 CURLcode result = CURLE_OK;
307 char *options = NULL;
309 /* Parse the login details if specified. It not then we treat NULL as a hint
310 to clear the existing data */
312 result = parse_login_details(option, strlen(option),
313 (userp ? &user : NULL),
314 (passwdp ? &passwd : NULL),
315 (optionsp ? &options : NULL));
319 /* Store the username part of option if required */
321 if(!user && option && option[0] == ':') {
322 /* Allocate an empty string instead of returning NULL as user name */
325 result = CURLE_OUT_OF_MEMORY;
328 Curl_safefree(*userp);
332 /* Store the password part of option if required */
334 Curl_safefree(*passwdp);
338 /* Store the options part of option if required */
340 Curl_safefree(*optionsp);
348 CURLcode Curl_dupset(struct SessionHandle *dst, struct SessionHandle *src)
350 CURLcode r = CURLE_OK;
353 /* Copy src->set into dst->set first, then deal with the strings
357 /* clear all string pointers first */
358 memset(dst->set.str, 0, STRING_LAST * sizeof(char *));
360 /* duplicate all strings */
361 for(i=(enum dupstring)0; i< STRING_LAST; i++) {
362 r = setstropt(&dst->set.str[i], src->set.str[i]);
367 /* If a failure occurred, freeing has to be performed externally. */
372 * This is the internal function curl_easy_cleanup() calls. This should
373 * cleanup and free all resources associated with this sessionhandle.
375 * NOTE: if we ever add something that attempts to write to a socket or
376 * similar here, we must ignore SIGPIPE first. It is currently only done
377 * when curl_easy_perform() is invoked.
380 CURLcode Curl_close(struct SessionHandle *data)
382 struct Curl_multi *m;
387 Curl_expire(data, 0); /* shut off timers */
392 /* This handle is still part of a multi handle, take care of this first
393 and detach this handle from there. */
394 curl_multi_remove_handle(data->multi, data);
397 /* when curl_easy_perform() is used, it creates its own multi handle to
398 use and this is the one */
399 curl_multi_cleanup(data->multi_easy);
401 /* Destroy the timeout list that is held in the easy handle. It is
402 /normally/ done by curl_multi_remove_handle() but this is "just in
404 if(data->state.timeoutlist) {
405 Curl_llist_destroy(data->state.timeoutlist, NULL);
406 data->state.timeoutlist = NULL;
409 data->magic = 0; /* force a clear AFTER the possibly enforced removal from
410 the multi handle, since that function uses the magic
413 if(data->state.rangestringalloc)
414 free(data->state.range);
416 /* Free the pathbuffer */
417 Curl_safefree(data->state.pathbuffer);
418 data->state.path = NULL;
420 /* freed here just in case DONE wasn't called */
421 Curl_free_request_state(data);
423 /* Close down all open SSL info and sessions */
424 Curl_ssl_close_all(data);
425 Curl_safefree(data->state.first_host);
426 Curl_safefree(data->state.scratch);
427 Curl_ssl_free_certinfo(data);
429 if(data->change.referer_alloc) {
430 Curl_safefree(data->change.referer);
431 data->change.referer_alloc = FALSE;
433 data->change.referer = NULL;
435 if(data->change.url_alloc) {
436 Curl_safefree(data->change.url);
437 data->change.url_alloc = FALSE;
439 data->change.url = NULL;
441 Curl_safefree(data->state.headerbuff);
443 Curl_flush_cookies(data, 1);
445 Curl_digest_cleanup(data);
447 Curl_safefree(data->info.contenttype);
448 Curl_safefree(data->info.wouldredirect);
450 /* this destroys the channel and we cannot use it anymore after this */
451 Curl_resolver_cleanup(data->state.resolver);
453 Curl_convert_close(data);
455 /* No longer a dirty share, if it exists */
457 Curl_share_lock(data, CURL_LOCK_DATA_SHARE, CURL_LOCK_ACCESS_SINGLE);
458 data->share->dirty--;
459 Curl_share_unlock(data, CURL_LOCK_DATA_SHARE);
468 * Initialize the UserDefined fields within a SessionHandle.
469 * This may be safely called on a new or existing SessionHandle.
471 CURLcode Curl_init_userdefined(struct UserDefined *set)
473 CURLcode res = CURLE_OK;
475 set->out = stdout; /* default output to stdout */
476 set->in = stdin; /* default input from stdin */
477 set->err = stderr; /* default stderr to stderr */
479 /* use fwrite as default function to store output */
480 set->fwrite_func = (curl_write_callback)fwrite;
482 /* use fread as default function to read input */
483 set->fread_func = (curl_read_callback)fread;
484 set->is_fread_set = 0;
485 set->is_fwrite_set = 0;
487 set->seek_func = ZERO_NULL;
488 set->seek_client = ZERO_NULL;
490 /* conversion callbacks for non-ASCII hosts */
491 set->convfromnetwork = ZERO_NULL;
492 set->convtonetwork = ZERO_NULL;
493 set->convfromutf8 = ZERO_NULL;
495 set->infilesize = -1; /* we don't know any size */
496 set->postfieldsize = -1; /* unknown size */
497 set->maxredirs = -1; /* allow any amount by default */
499 set->httpreq = HTTPREQ_GET; /* Default HTTP request */
500 set->rtspreq = RTSPREQ_OPTIONS; /* Default RTSP request */
501 set->ftp_use_epsv = TRUE; /* FTP defaults to EPSV operations */
502 set->ftp_use_eprt = TRUE; /* FTP defaults to EPRT operations */
503 set->ftp_use_pret = FALSE; /* mainly useful for drftpd servers */
504 set->ftp_filemethod = FTPFILE_MULTICWD;
506 set->dns_cache_timeout = 60; /* Timeout every 60 seconds by default */
508 /* Set the default size of the SSL session ID cache */
509 set->ssl.max_ssl_sessions = 5;
511 set->proxyport = CURL_DEFAULT_PROXY_PORT; /* from url.h */
512 set->proxytype = CURLPROXY_HTTP; /* defaults to HTTP proxy */
513 set->httpauth = CURLAUTH_BASIC; /* defaults to basic */
514 set->proxyauth = CURLAUTH_BASIC; /* defaults to basic */
516 /* make libcurl quiet by default: */
517 set->hide_progress = TRUE; /* CURLOPT_NOPROGRESS changes these */
520 * libcurl 7.10 introduced SSL verification *by default*! This needs to be
521 * switched off unless wanted.
523 set->ssl.verifypeer = TRUE;
524 set->ssl.verifyhost = TRUE;
526 set->ssl.authtype = CURL_TLSAUTH_NONE;
528 set->ssh_auth_types = CURLSSH_AUTH_DEFAULT; /* defaults to any auth
530 set->ssl.sessionid = TRUE; /* session ID caching enabled by default */
532 set->new_file_perms = 0644; /* Default permissions */
533 set->new_directory_perms = 0755; /* Default permissions */
535 /* for the *protocols fields we don't use the CURLPROTO_ALL convenience
536 define since we internally only use the lower 16 bits for the passed
537 in bitmask to not conflict with the private bits */
538 set->allowed_protocols = CURLPROTO_ALL;
539 set->redir_protocols =
540 CURLPROTO_ALL & ~(CURLPROTO_FILE|CURLPROTO_SCP); /* not FILE or SCP */
542 #if defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)
544 * disallow unprotected protection negotiation NEC reference implementation
545 * seem not to follow rfc1961 section 4.3/4.4
547 set->socks5_gssapi_nec = FALSE;
548 /* set default gssapi service name */
549 res = setstropt(&set->str[STRING_SOCKS5_GSSAPI_SERVICE],
550 (char *) CURL_DEFAULT_SOCKS5_GSSAPI_SERVICE);
555 /* This is our preferred CA cert bundle/path since install time */
556 #if defined(CURL_CA_BUNDLE)
557 res = setstropt(&set->str[STRING_SSL_CAFILE], (char *) CURL_CA_BUNDLE);
558 #elif defined(CURL_CA_PATH)
559 res = setstropt(&set->str[STRING_SSL_CAPATH], (char *) CURL_CA_PATH);
562 set->wildcardmatch = FALSE;
563 set->chunk_bgn = ZERO_NULL;
564 set->chunk_end = ZERO_NULL;
566 /* tcp keepalives are disabled by default, but provide reasonable values for
567 * the interval and idle times.
569 set->tcp_keepalive = FALSE;
570 set->tcp_keepintvl = 60;
571 set->tcp_keepidle = 60;
579 * @param curl is a pointer to a sessionhandle pointer that gets set by this
584 CURLcode Curl_open(struct SessionHandle **curl)
586 CURLcode res = CURLE_OK;
587 struct SessionHandle *data;
590 /* Very simple start-up: alloc the struct, init it with zeroes and return */
591 data = calloc(1, sizeof(struct SessionHandle));
593 /* this is a very serious error */
594 DEBUGF(fprintf(stderr, "Error: calloc of SessionHandle failed\n"));
595 return CURLE_OUT_OF_MEMORY;
598 data->magic = CURLEASY_MAGIC_NUMBER;
600 status = Curl_resolver_init(&data->state.resolver);
602 DEBUGF(fprintf(stderr, "Error: resolver_init failed\n"));
607 /* We do some initial setup here, all those fields that can't be just 0 */
609 data->state.headerbuff = malloc(HEADERSIZE);
610 if(!data->state.headerbuff) {
611 DEBUGF(fprintf(stderr, "Error: malloc of headerbuff failed\n"));
612 res = CURLE_OUT_OF_MEMORY;
615 res = Curl_init_userdefined(&data->set);
617 data->state.headersize=HEADERSIZE;
619 Curl_convert_init(data);
621 /* most recent connection is not yet defined */
622 data->state.lastconnect = NULL;
624 data->progress.flags |= PGRS_HIDE;
625 data->state.current_speed = -1; /* init to negative == impossible */
627 data->wildcard.state = CURLWC_INIT;
628 data->wildcard.filelist = NULL;
629 data->set.fnmatch = ZERO_NULL;
630 data->set.maxconnects = DEFAULT_CONNCACHE_SIZE; /* for easy handles */
634 Curl_resolver_cleanup(data->state.resolver);
635 if(data->state.headerbuff)
636 free(data->state.headerbuff);
647 CURLcode Curl_setopt(struct SessionHandle *data, CURLoption option,
651 CURLcode result = CURLE_OK;
653 #ifndef CURL_DISABLE_HTTP
658 case CURLOPT_DNS_CACHE_TIMEOUT:
659 data->set.dns_cache_timeout = va_arg(param, long);
661 case CURLOPT_DNS_USE_GLOBAL_CACHE:
662 /* remember we want this enabled */
663 arg = va_arg(param, long);
664 data->set.global_dns_cache = (0 != arg)?TRUE:FALSE;
666 case CURLOPT_SSL_CIPHER_LIST:
667 /* set a list of cipher we want to use in the SSL connection */
668 result = setstropt(&data->set.str[STRING_SSL_CIPHER_LIST],
669 va_arg(param, char *));
672 case CURLOPT_RANDOM_FILE:
674 * This is the path name to a file that contains random data to seed
675 * the random SSL stuff with. The file is only used for reading.
677 result = setstropt(&data->set.str[STRING_SSL_RANDOM_FILE],
678 va_arg(param, char *));
680 case CURLOPT_EGDSOCKET:
682 * The Entropy Gathering Daemon socket pathname
684 result = setstropt(&data->set.str[STRING_SSL_EGDSOCKET],
685 va_arg(param, char *));
687 case CURLOPT_MAXCONNECTS:
689 * Set the absolute number of maximum simultaneous alive connection that
690 * libcurl is allowed to have.
692 data->set.maxconnects = va_arg(param, long);
694 case CURLOPT_FORBID_REUSE:
696 * When this transfer is done, it must not be left to be reused by a
697 * subsequent transfer but shall be closed immediately.
699 data->set.reuse_forbid = (0 != va_arg(param, long))?TRUE:FALSE;
701 case CURLOPT_FRESH_CONNECT:
703 * This transfer shall not use a previously cached connection but
704 * should be made with a fresh new connect!
706 data->set.reuse_fresh = (0 != va_arg(param, long))?TRUE:FALSE;
708 case CURLOPT_VERBOSE:
710 * Verbose means infof() calls that give a lot of information about
711 * the connection and transfer procedures as well as internal choices.
713 data->set.verbose = (0 != va_arg(param, long))?TRUE:FALSE;
717 * Set to include the header in the general data output stream.
719 data->set.include_header = (0 != va_arg(param, long))?TRUE:FALSE;
721 case CURLOPT_NOPROGRESS:
723 * Shut off the internal supported progress meter
725 data->set.hide_progress = (0 != va_arg(param, long))?TRUE:FALSE;
726 if(data->set.hide_progress)
727 data->progress.flags |= PGRS_HIDE;
729 data->progress.flags &= ~PGRS_HIDE;
733 * Do not include the body part in the output data stream.
735 data->set.opt_no_body = (0 != va_arg(param, long))?TRUE:FALSE;
737 case CURLOPT_FAILONERROR:
739 * Don't output the >=300 error code HTML-page, but instead only
742 data->set.http_fail_on_error = (0 != va_arg(param, long))?TRUE:FALSE;
747 * We want to sent data to the remote host. If this is HTTP, that equals
748 * using the PUT request.
750 data->set.upload = (0 != va_arg(param, long))?TRUE:FALSE;
751 if(data->set.upload) {
752 /* If this is HTTP, PUT is what's needed to "upload" */
753 data->set.httpreq = HTTPREQ_PUT;
754 data->set.opt_no_body = FALSE; /* this is implied */
757 /* In HTTP, the opposite of upload is GET (unless NOBODY is true as
758 then this can be changed to HEAD later on) */
759 data->set.httpreq = HTTPREQ_GET;
761 case CURLOPT_FILETIME:
763 * Try to get the file time of the remote document. The time will
764 * later (possibly) become available using curl_easy_getinfo().
766 data->set.get_filetime = (0 != va_arg(param, long))?TRUE:FALSE;
768 case CURLOPT_FTP_CREATE_MISSING_DIRS:
770 * An FTP option that modifies an upload to create missing directories on
773 switch(va_arg(param, long)) {
775 data->set.ftp_create_missing_dirs = 0;
778 data->set.ftp_create_missing_dirs = 1;
781 data->set.ftp_create_missing_dirs = 2;
784 /* reserve other values for future use */
785 result = CURLE_UNKNOWN_OPTION;
789 case CURLOPT_SERVER_RESPONSE_TIMEOUT:
791 * Option that specifies how quickly an server response must be obtained
792 * before it is considered failure. For pingpong protocols.
794 data->set.server_response_timeout = va_arg( param , long ) * 1000;
796 case CURLOPT_TFTP_BLKSIZE:
798 * TFTP option that specifies the block size to use for data transmission
800 data->set.tftp_blksize = va_arg(param, long);
802 case CURLOPT_DIRLISTONLY:
804 * An option that changes the command to one that asks for a list
805 * only, no file info details.
807 data->set.ftp_list_only = (0 != va_arg(param, long))?TRUE:FALSE;
811 * We want to upload and append to an existing file.
813 data->set.ftp_append = (0 != va_arg(param, long))?TRUE:FALSE;
815 case CURLOPT_FTP_FILEMETHOD:
817 * How do access files over FTP.
819 data->set.ftp_filemethod = (curl_ftpfile)va_arg(param, long);
823 * Parse the $HOME/.netrc file
825 data->set.use_netrc = (enum CURL_NETRC_OPTION)va_arg(param, long);
827 case CURLOPT_NETRC_FILE:
829 * Use this file instead of the $HOME/.netrc file
831 result = setstropt(&data->set.str[STRING_NETRC_FILE],
832 va_arg(param, char *));
834 case CURLOPT_TRANSFERTEXT:
836 * This option was previously named 'FTPASCII'. Renamed to work with
837 * more protocols than merely FTP.
839 * Transfer using ASCII (instead of BINARY).
841 data->set.prefer_ascii = (0 != va_arg(param, long))?TRUE:FALSE;
843 case CURLOPT_TIMECONDITION:
845 * Set HTTP time condition. This must be one of the defines in the
846 * curl/curl.h header file.
848 data->set.timecondition = (curl_TimeCond)va_arg(param, long);
850 case CURLOPT_TIMEVALUE:
852 * This is the value to compare with the remote document with the
853 * method set with CURLOPT_TIMECONDITION
855 data->set.timevalue = (time_t)va_arg(param, long);
857 case CURLOPT_SSLVERSION:
859 * Set explicit SSL version to try to connect with, as some SSL
860 * implementations are lame.
862 data->set.ssl.version = va_arg(param, long);
865 #ifndef CURL_DISABLE_HTTP
866 case CURLOPT_AUTOREFERER:
868 * Switch on automatic referer that gets set if curl follows locations.
870 data->set.http_auto_referer = (0 != va_arg(param, long))?TRUE:FALSE;
873 case CURLOPT_ACCEPT_ENCODING:
875 * String to use at the value of Accept-Encoding header.
877 * If the encoding is set to "" we use an Accept-Encoding header that
878 * encompasses all the encodings we support.
879 * If the encoding is set to NULL we don't send an Accept-Encoding header
880 * and ignore an received Content-Encoding header.
883 argptr = va_arg(param, char *);
884 result = setstropt(&data->set.str[STRING_ENCODING],
885 (argptr && !*argptr)?
886 (char *) ALL_CONTENT_ENCODINGS: argptr);
889 case CURLOPT_TRANSFER_ENCODING:
890 data->set.http_transfer_encoding = (0 != va_arg(param, long))?TRUE:FALSE;
893 case CURLOPT_FOLLOWLOCATION:
895 * Follow Location: header hints on a HTTP-server.
897 data->set.http_follow_location = (0 != va_arg(param, long))?TRUE:FALSE;
900 case CURLOPT_UNRESTRICTED_AUTH:
902 * Send authentication (user+password) when following locations, even when
905 data->set.http_disable_hostname_check_before_authentication =
906 (0 != va_arg(param, long))?TRUE:FALSE;
909 case CURLOPT_MAXREDIRS:
911 * The maximum amount of hops you allow curl to follow Location:
912 * headers. This should mostly be used to detect never-ending loops.
914 data->set.maxredirs = va_arg(param, long);
917 case CURLOPT_POSTREDIR:
920 * Set the behaviour of POST when redirecting
921 * CURL_REDIR_GET_ALL - POST is changed to GET after 301 and 302
922 * CURL_REDIR_POST_301 - POST is kept as POST after 301
923 * CURL_REDIR_POST_302 - POST is kept as POST after 302
924 * CURL_REDIR_POST_303 - POST is kept as POST after 303
925 * CURL_REDIR_POST_ALL - POST is kept as POST after 301, 302 and 303
926 * other - POST is kept as POST after 301 and 302
928 int postRedir = curlx_sltosi(va_arg(param, long));
929 data->set.keep_post = postRedir & CURL_REDIR_POST_ALL;
934 /* Does this option serve a purpose anymore? Yes it does, when
935 CURLOPT_POSTFIELDS isn't used and the POST data is read off the
937 if(va_arg(param, long)) {
938 data->set.httpreq = HTTPREQ_POST;
939 data->set.opt_no_body = FALSE; /* this is implied */
942 data->set.httpreq = HTTPREQ_GET;
945 case CURLOPT_COPYPOSTFIELDS:
947 * A string with POST data. Makes curl HTTP POST. Even if it is NULL.
948 * If needed, CURLOPT_POSTFIELDSIZE must have been set prior to
949 * CURLOPT_COPYPOSTFIELDS and not altered later.
951 argptr = va_arg(param, char *);
953 if(!argptr || data->set.postfieldsize == -1)
954 result = setstropt(&data->set.str[STRING_COPYPOSTFIELDS], argptr);
957 * Check that requested length does not overflow the size_t type.
960 if((data->set.postfieldsize < 0) ||
961 ((sizeof(curl_off_t) != sizeof(size_t)) &&
962 (data->set.postfieldsize > (curl_off_t)((size_t)-1))))
963 result = CURLE_OUT_OF_MEMORY;
967 (void) setstropt(&data->set.str[STRING_COPYPOSTFIELDS], NULL);
969 /* Allocate even when size == 0. This satisfies the need of possible
970 later address compare to detect the COPYPOSTFIELDS mode, and
971 to mark that postfields is used rather than read function or
974 p = malloc((size_t)(data->set.postfieldsize?
975 data->set.postfieldsize:1));
978 result = CURLE_OUT_OF_MEMORY;
980 if(data->set.postfieldsize)
981 memcpy(p, argptr, (size_t)data->set.postfieldsize);
983 data->set.str[STRING_COPYPOSTFIELDS] = p;
988 data->set.postfields = data->set.str[STRING_COPYPOSTFIELDS];
989 data->set.httpreq = HTTPREQ_POST;
992 case CURLOPT_POSTFIELDS:
994 * Like above, but use static data instead of copying it.
996 data->set.postfields = va_arg(param, void *);
997 /* Release old copied data. */
998 (void) setstropt(&data->set.str[STRING_COPYPOSTFIELDS], NULL);
999 data->set.httpreq = HTTPREQ_POST;
1002 case CURLOPT_POSTFIELDSIZE:
1004 * The size of the POSTFIELD data to prevent libcurl to do strlen() to
1005 * figure it out. Enables binary posts.
1007 bigsize = va_arg(param, long);
1009 if(data->set.postfieldsize < bigsize &&
1010 data->set.postfields == data->set.str[STRING_COPYPOSTFIELDS]) {
1011 /* Previous CURLOPT_COPYPOSTFIELDS is no longer valid. */
1012 (void) setstropt(&data->set.str[STRING_COPYPOSTFIELDS], NULL);
1013 data->set.postfields = NULL;
1016 data->set.postfieldsize = bigsize;
1019 case CURLOPT_POSTFIELDSIZE_LARGE:
1021 * The size of the POSTFIELD data to prevent libcurl to do strlen() to
1022 * figure it out. Enables binary posts.
1024 bigsize = va_arg(param, curl_off_t);
1026 if(data->set.postfieldsize < bigsize &&
1027 data->set.postfields == data->set.str[STRING_COPYPOSTFIELDS]) {
1028 /* Previous CURLOPT_COPYPOSTFIELDS is no longer valid. */
1029 (void) setstropt(&data->set.str[STRING_COPYPOSTFIELDS], NULL);
1030 data->set.postfields = NULL;
1033 data->set.postfieldsize = bigsize;
1036 case CURLOPT_HTTPPOST:
1038 * Set to make us do HTTP POST
1040 data->set.httppost = va_arg(param, struct curl_httppost *);
1041 data->set.httpreq = HTTPREQ_POST_FORM;
1042 data->set.opt_no_body = FALSE; /* this is implied */
1045 case CURLOPT_REFERER:
1047 * String to set in the HTTP Referer: field.
1049 if(data->change.referer_alloc) {
1050 Curl_safefree(data->change.referer);
1051 data->change.referer_alloc = FALSE;
1053 result = setstropt(&data->set.str[STRING_SET_REFERER],
1054 va_arg(param, char *));
1055 data->change.referer = data->set.str[STRING_SET_REFERER];
1058 case CURLOPT_USERAGENT:
1060 * String to use in the HTTP User-Agent field
1062 result = setstropt(&data->set.str[STRING_USERAGENT],
1063 va_arg(param, char *));
1066 case CURLOPT_HTTPHEADER:
1068 * Set a list with HTTP headers to use (or replace internals with)
1070 data->set.headers = va_arg(param, struct curl_slist *);
1073 case CURLOPT_HTTP200ALIASES:
1075 * Set a list of aliases for HTTP 200 in response header
1077 data->set.http200aliases = va_arg(param, struct curl_slist *);
1080 #if !defined(CURL_DISABLE_COOKIES)
1081 case CURLOPT_COOKIE:
1083 * Cookie string to send to the remote server in the request.
1085 result = setstropt(&data->set.str[STRING_COOKIE],
1086 va_arg(param, char *));
1089 case CURLOPT_COOKIEFILE:
1091 * Set cookie file to read and parse. Can be used multiple times.
1093 argptr = (char *)va_arg(param, void *);
1095 struct curl_slist *cl;
1096 /* append the cookie file name to the list of file names, and deal with
1098 cl = curl_slist_append(data->change.cookielist, argptr);
1100 curl_slist_free_all(data->change.cookielist);
1101 data->change.cookielist = NULL;
1102 return CURLE_OUT_OF_MEMORY;
1104 data->change.cookielist = cl; /* store the list for later use */
1108 case CURLOPT_COOKIEJAR:
1110 * Set cookie file name to dump all cookies to when we're done.
1112 result = setstropt(&data->set.str[STRING_COOKIEJAR],
1113 va_arg(param, char *));
1116 * Activate the cookie parser. This may or may not already
1119 data->cookies = Curl_cookie_init(data, NULL, data->cookies,
1120 data->set.cookiesession);
1123 case CURLOPT_COOKIESESSION:
1125 * Set this option to TRUE to start a new "cookie session". It will
1126 * prevent the forthcoming read-cookies-from-file actions to accept
1127 * cookies that are marked as being session cookies, as they belong to a
1130 * In the original Netscape cookie spec, "session cookies" are cookies
1131 * with no expire date set. RFC2109 describes the same action if no
1132 * 'Max-Age' is set and RFC2965 includes the RFC2109 description and adds
1133 * a 'Discard' action that can enforce the discard even for cookies that
1136 * We run mostly with the original cookie spec, as hardly anyone implements
1139 data->set.cookiesession = (0 != va_arg(param, long))?TRUE:FALSE;
1142 case CURLOPT_COOKIELIST:
1143 argptr = va_arg(param, char *);
1148 Curl_share_lock(data, CURL_LOCK_DATA_COOKIE, CURL_LOCK_ACCESS_SINGLE);
1150 if(Curl_raw_equal(argptr, "ALL")) {
1151 /* clear all cookies */
1152 Curl_cookie_clearall(data->cookies);
1154 else if(Curl_raw_equal(argptr, "SESS")) {
1155 /* clear session cookies */
1156 Curl_cookie_clearsess(data->cookies);
1158 else if(Curl_raw_equal(argptr, "FLUSH")) {
1159 /* flush cookies to file */
1160 Curl_flush_cookies(data, 0);
1164 /* if cookie engine was not running, activate it */
1165 data->cookies = Curl_cookie_init(data, NULL, NULL, TRUE);
1167 argptr = strdup(argptr);
1169 result = CURLE_OUT_OF_MEMORY;
1173 if(checkprefix("Set-Cookie:", argptr))
1174 /* HTTP Header format line */
1175 Curl_cookie_add(data, data->cookies, TRUE, argptr + 11, NULL, NULL);
1178 /* Netscape format line */
1179 Curl_cookie_add(data, data->cookies, FALSE, argptr, NULL, NULL);
1184 Curl_share_unlock(data, CURL_LOCK_DATA_COOKIE);
1187 #endif /* CURL_DISABLE_COOKIES */
1189 case CURLOPT_HTTPGET:
1191 * Set to force us do HTTP GET
1193 if(va_arg(param, long)) {
1194 data->set.httpreq = HTTPREQ_GET;
1195 data->set.upload = FALSE; /* switch off upload */
1196 data->set.opt_no_body = FALSE; /* this is implied */
1200 case CURLOPT_HTTP_VERSION:
1202 * This sets a requested HTTP version to be used. The value is one of
1203 * the listed enums in curl/curl.h.
1205 data->set.httpversion = va_arg(param, long);
1208 case CURLOPT_HTTPAUTH:
1210 * Set HTTP Authentication type BITMASK.
1215 unsigned long auth = va_arg(param, unsigned long);
1217 if(auth == CURLAUTH_NONE) {
1218 data->set.httpauth = auth;
1222 /* the DIGEST_IE bit is only used to set a special marker, for all the
1223 rest we need to handle it as normal DIGEST */
1224 data->state.authhost.iestyle = (auth & CURLAUTH_DIGEST_IE)?TRUE:FALSE;
1226 if(auth & CURLAUTH_DIGEST_IE) {
1227 auth |= CURLAUTH_DIGEST; /* set standard digest bit */
1228 auth &= ~CURLAUTH_DIGEST_IE; /* unset ie digest bit */
1231 /* switch off bits we can't support */
1233 auth &= ~CURLAUTH_NTLM; /* no NTLM support */
1234 auth &= ~CURLAUTH_NTLM_WB; /* no NTLM_WB support */
1235 #elif !defined(NTLM_WB_ENABLED)
1236 auth &= ~CURLAUTH_NTLM_WB; /* no NTLM_WB support */
1238 #ifndef USE_HTTP_NEGOTIATE
1239 auth &= ~CURLAUTH_GSSNEGOTIATE; /* no GSS-Negotiate without GSSAPI or
1243 /* check if any auth bit lower than CURLAUTH_ONLY is still set */
1246 while(bitcheck < 31) {
1247 if(auth & (1UL << bitcheck++)) {
1253 return CURLE_NOT_BUILT_IN; /* no supported types left! */
1255 data->set.httpauth = auth;
1259 #endif /* CURL_DISABLE_HTTP */
1261 case CURLOPT_CUSTOMREQUEST:
1263 * Set a custom string to use as request
1265 result = setstropt(&data->set.str[STRING_CUSTOMREQUEST],
1266 va_arg(param, char *));
1269 data->set.httpreq = HTTPREQ_CUSTOM;
1270 here, we continue as if we were using the already set type
1271 and this just changes the actual request keyword */
1274 #ifndef CURL_DISABLE_PROXY
1275 case CURLOPT_HTTPPROXYTUNNEL:
1277 * Tunnel operations through the proxy instead of normal proxy use
1279 data->set.tunnel_thru_httpproxy = (0 != va_arg(param, long))?TRUE:FALSE;
1282 case CURLOPT_PROXYPORT:
1284 * Explicitly set HTTP proxy port number.
1286 data->set.proxyport = va_arg(param, long);
1289 case CURLOPT_PROXYAUTH:
1291 * Set HTTP Authentication type BITMASK.
1296 unsigned long auth = va_arg(param, unsigned long);
1298 if(auth == CURLAUTH_NONE) {
1299 data->set.proxyauth = auth;
1303 /* the DIGEST_IE bit is only used to set a special marker, for all the
1304 rest we need to handle it as normal DIGEST */
1305 data->state.authproxy.iestyle = (auth & CURLAUTH_DIGEST_IE)?TRUE:FALSE;
1307 if(auth & CURLAUTH_DIGEST_IE) {
1308 auth |= CURLAUTH_DIGEST; /* set standard digest bit */
1309 auth &= ~CURLAUTH_DIGEST_IE; /* unset ie digest bit */
1311 /* switch off bits we can't support */
1313 auth &= ~CURLAUTH_NTLM; /* no NTLM support */
1314 auth &= ~CURLAUTH_NTLM_WB; /* no NTLM_WB support */
1315 #elif !defined(NTLM_WB_ENABLED)
1316 auth &= ~CURLAUTH_NTLM_WB; /* no NTLM_WB support */
1318 #ifndef USE_HTTP_NEGOTIATE
1319 auth &= ~CURLAUTH_GSSNEGOTIATE; /* no GSS-Negotiate without GSSAPI or
1323 /* check if any auth bit lower than CURLAUTH_ONLY is still set */
1326 while(bitcheck < 31) {
1327 if(auth & (1UL << bitcheck++)) {
1333 return CURLE_NOT_BUILT_IN; /* no supported types left! */
1335 data->set.proxyauth = auth;
1341 * Set proxy server:port to use as HTTP proxy.
1343 * If the proxy is set to "" we explicitly say that we don't want to use a
1344 * proxy (even though there might be environment variables saying so).
1346 * Setting it to NULL, means no proxy but allows the environment variables
1349 result = setstropt(&data->set.str[STRING_PROXY],
1350 va_arg(param, char *));
1353 case CURLOPT_PROXYTYPE:
1355 * Set proxy type. HTTP/HTTP_1_0/SOCKS4/SOCKS4a/SOCKS5/SOCKS5_HOSTNAME
1357 data->set.proxytype = (curl_proxytype)va_arg(param, long);
1360 case CURLOPT_PROXY_TRANSFER_MODE:
1362 * set transfer mode (;type=<a|i>) when doing FTP via an HTTP proxy
1364 switch (va_arg(param, long)) {
1366 data->set.proxy_transfer_mode = FALSE;
1369 data->set.proxy_transfer_mode = TRUE;
1372 /* reserve other values for future use */
1373 result = CURLE_UNKNOWN_OPTION;
1377 #endif /* CURL_DISABLE_PROXY */
1379 #if defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)
1380 case CURLOPT_SOCKS5_GSSAPI_SERVICE:
1382 * Set gssapi service name
1384 result = setstropt(&data->set.str[STRING_SOCKS5_GSSAPI_SERVICE],
1385 va_arg(param, char *));
1388 case CURLOPT_SOCKS5_GSSAPI_NEC:
1390 * set flag for nec socks5 support
1392 data->set.socks5_gssapi_nec = (0 != va_arg(param, long))?TRUE:FALSE;
1396 case CURLOPT_WRITEHEADER:
1398 * Custom pointer to pass the header write callback function
1400 data->set.writeheader = (void *)va_arg(param, void *);
1402 case CURLOPT_ERRORBUFFER:
1404 * Error buffer provided by the caller to get the human readable
1407 data->set.errorbuffer = va_arg(param, char *);
1411 * FILE pointer to write to. Or possibly
1412 * used as argument to the write callback.
1414 data->set.out = va_arg(param, void *);
1416 case CURLOPT_FTPPORT:
1418 * Use FTP PORT, this also specifies which IP address to use
1420 result = setstropt(&data->set.str[STRING_FTPPORT],
1421 va_arg(param, char *));
1422 data->set.ftp_use_port = (NULL != data->set.str[STRING_FTPPORT]) ?
1426 case CURLOPT_FTP_USE_EPRT:
1427 data->set.ftp_use_eprt = (0 != va_arg(param, long))?TRUE:FALSE;
1430 case CURLOPT_FTP_USE_EPSV:
1431 data->set.ftp_use_epsv = (0 != va_arg(param, long))?TRUE:FALSE;
1434 case CURLOPT_FTP_USE_PRET:
1435 data->set.ftp_use_pret = (0 != va_arg(param, long))?TRUE:FALSE;
1438 case CURLOPT_FTP_SSL_CCC:
1439 data->set.ftp_ccc = (curl_ftpccc)va_arg(param, long);
1442 case CURLOPT_FTP_SKIP_PASV_IP:
1444 * Enable or disable FTP_SKIP_PASV_IP, which will disable/enable the
1445 * bypass of the IP address in PASV responses.
1447 data->set.ftp_skip_ip = (0 != va_arg(param, long))?TRUE:FALSE;
1450 case CURLOPT_INFILE:
1452 * FILE pointer to read the file to be uploaded from. Or possibly
1453 * used as argument to the read callback.
1455 data->set.in = va_arg(param, void *);
1457 case CURLOPT_INFILESIZE:
1459 * If known, this should inform curl about the file size of the
1460 * to-be-uploaded file.
1462 data->set.infilesize = va_arg(param, long);
1464 case CURLOPT_INFILESIZE_LARGE:
1466 * If known, this should inform curl about the file size of the
1467 * to-be-uploaded file.
1469 data->set.infilesize = va_arg(param, curl_off_t);
1471 case CURLOPT_LOW_SPEED_LIMIT:
1473 * The low speed limit that if transfers are below this for
1474 * CURLOPT_LOW_SPEED_TIME, the transfer is aborted.
1476 data->set.low_speed_limit=va_arg(param, long);
1478 case CURLOPT_MAX_SEND_SPEED_LARGE:
1480 * When transfer uploads are faster then CURLOPT_MAX_SEND_SPEED_LARGE
1481 * bytes per second the transfer is throttled..
1483 data->set.max_send_speed=va_arg(param, curl_off_t);
1485 case CURLOPT_MAX_RECV_SPEED_LARGE:
1487 * When receiving data faster than CURLOPT_MAX_RECV_SPEED_LARGE bytes per
1488 * second the transfer is throttled..
1490 data->set.max_recv_speed=va_arg(param, curl_off_t);
1492 case CURLOPT_LOW_SPEED_TIME:
1494 * The low speed time that if transfers are below the set
1495 * CURLOPT_LOW_SPEED_LIMIT during this time, the transfer is aborted.
1497 data->set.low_speed_time=va_arg(param, long);
1503 if(data->change.url_alloc) {
1504 /* the already set URL is allocated, free it first! */
1505 Curl_safefree(data->change.url);
1506 data->change.url_alloc = FALSE;
1508 result = setstropt(&data->set.str[STRING_SET_URL],
1509 va_arg(param, char *));
1510 data->change.url = data->set.str[STRING_SET_URL];
1514 * The port number to use when getting the URL
1516 data->set.use_port = va_arg(param, long);
1518 case CURLOPT_TIMEOUT:
1520 * The maximum time you allow curl to use for a single transfer
1523 data->set.timeout = va_arg(param, long) * 1000L;
1526 case CURLOPT_TIMEOUT_MS:
1527 data->set.timeout = va_arg(param, long);
1530 case CURLOPT_CONNECTTIMEOUT:
1532 * The maximum time you allow curl to use to connect.
1534 data->set.connecttimeout = va_arg(param, long) * 1000L;
1537 case CURLOPT_CONNECTTIMEOUT_MS:
1538 data->set.connecttimeout = va_arg(param, long);
1541 case CURLOPT_ACCEPTTIMEOUT_MS:
1543 * The maximum time you allow curl to wait for server connect
1545 data->set.accepttimeout = va_arg(param, long);
1548 case CURLOPT_USERPWD:
1550 * user:password;options to use in the operation
1552 result = setstropt_userpwd(va_arg(param, char *),
1553 &data->set.str[STRING_USERNAME],
1554 &data->set.str[STRING_PASSWORD],
1555 &data->set.str[STRING_OPTIONS]);
1557 case CURLOPT_USERNAME:
1559 * authentication user name to use in the operation
1561 result = setstropt(&data->set.str[STRING_USERNAME],
1562 va_arg(param, char *));
1564 case CURLOPT_PASSWORD:
1566 * authentication password to use in the operation
1568 result = setstropt(&data->set.str[STRING_PASSWORD],
1569 va_arg(param, char *));
1571 case CURLOPT_POSTQUOTE:
1573 * List of RAW FTP commands to use after a transfer
1575 data->set.postquote = va_arg(param, struct curl_slist *);
1577 case CURLOPT_PREQUOTE:
1579 * List of RAW FTP commands to use prior to RETR (Wesley Laxton)
1581 data->set.prequote = va_arg(param, struct curl_slist *);
1585 * List of RAW FTP commands to use before a transfer
1587 data->set.quote = va_arg(param, struct curl_slist *);
1589 case CURLOPT_RESOLVE:
1591 * List of NAME:[address] names to populate the DNS cache with
1592 * Prefix the NAME with dash (-) to _remove_ the name from the cache.
1594 * Names added with this API will remain in the cache until explicitly
1595 * removed or the handle is cleaned up.
1597 * This API can remove any name from the DNS cache, but only entries
1598 * that aren't actually in use right now will be pruned immediately.
1600 data->set.resolve = va_arg(param, struct curl_slist *);
1601 data->change.resolve = data->set.resolve;
1603 case CURLOPT_PROGRESSFUNCTION:
1605 * Progress callback function
1607 data->set.fprogress = va_arg(param, curl_progress_callback);
1608 if(data->set.fprogress)
1609 data->progress.callback = TRUE; /* no longer internal */
1611 data->progress.callback = FALSE; /* NULL enforces internal */
1614 case CURLOPT_XFERINFOFUNCTION:
1616 * Transfer info callback function
1618 data->set.fxferinfo = va_arg(param, curl_xferinfo_callback);
1619 if(data->set.fxferinfo)
1620 data->progress.callback = TRUE; /* no longer internal */
1622 data->progress.callback = FALSE; /* NULL enforces internal */
1626 case CURLOPT_PROGRESSDATA:
1628 * Custom client data to pass to the progress callback
1630 data->set.progress_client = va_arg(param, void *);
1633 #ifndef CURL_DISABLE_PROXY
1634 case CURLOPT_PROXYUSERPWD:
1636 * user:password needed to use the proxy
1638 result = setstropt_userpwd(va_arg(param, char *),
1639 &data->set.str[STRING_PROXYUSERNAME],
1640 &data->set.str[STRING_PROXYPASSWORD], NULL);
1642 case CURLOPT_PROXYUSERNAME:
1644 * authentication user name to use in the operation
1646 result = setstropt(&data->set.str[STRING_PROXYUSERNAME],
1647 va_arg(param, char *));
1649 case CURLOPT_PROXYPASSWORD:
1651 * authentication password to use in the operation
1653 result = setstropt(&data->set.str[STRING_PROXYPASSWORD],
1654 va_arg(param, char *));
1656 case CURLOPT_NOPROXY:
1658 * proxy exception list
1660 result = setstropt(&data->set.str[STRING_NOPROXY],
1661 va_arg(param, char *));
1667 * What range of the file you want to transfer
1669 result = setstropt(&data->set.str[STRING_SET_RANGE],
1670 va_arg(param, char *));
1672 case CURLOPT_RESUME_FROM:
1674 * Resume transfer at the give file position
1676 data->set.set_resume_from = va_arg(param, long);
1678 case CURLOPT_RESUME_FROM_LARGE:
1680 * Resume transfer at the give file position
1682 data->set.set_resume_from = va_arg(param, curl_off_t);
1684 case CURLOPT_DEBUGFUNCTION:
1686 * stderr write callback.
1688 data->set.fdebug = va_arg(param, curl_debug_callback);
1690 * if the callback provided is NULL, it'll use the default callback
1693 case CURLOPT_DEBUGDATA:
1695 * Set to a void * that should receive all error writes. This
1696 * defaults to CURLOPT_STDERR for normal operations.
1698 data->set.debugdata = va_arg(param, void *);
1700 case CURLOPT_STDERR:
1702 * Set to a FILE * that should receive all error writes. This
1703 * defaults to stderr for normal operations.
1705 data->set.err = va_arg(param, FILE *);
1707 data->set.err = stderr;
1709 case CURLOPT_HEADERFUNCTION:
1711 * Set header write callback
1713 data->set.fwrite_header = va_arg(param, curl_write_callback);
1715 case CURLOPT_WRITEFUNCTION:
1717 * Set data write callback
1719 data->set.fwrite_func = va_arg(param, curl_write_callback);
1720 if(!data->set.fwrite_func) {
1721 data->set.is_fwrite_set = 0;
1722 /* When set to NULL, reset to our internal default function */
1723 data->set.fwrite_func = (curl_write_callback)fwrite;
1726 data->set.is_fwrite_set = 1;
1728 case CURLOPT_READFUNCTION:
1730 * Read data callback
1732 data->set.fread_func = va_arg(param, curl_read_callback);
1733 if(!data->set.fread_func) {
1734 data->set.is_fread_set = 0;
1735 /* When set to NULL, reset to our internal default function */
1736 data->set.fread_func = (curl_read_callback)fread;
1739 data->set.is_fread_set = 1;
1741 case CURLOPT_SEEKFUNCTION:
1743 * Seek callback. Might be NULL.
1745 data->set.seek_func = va_arg(param, curl_seek_callback);
1747 case CURLOPT_SEEKDATA:
1749 * Seek control callback. Might be NULL.
1751 data->set.seek_client = va_arg(param, void *);
1753 case CURLOPT_CONV_FROM_NETWORK_FUNCTION:
1755 * "Convert from network encoding" callback
1757 data->set.convfromnetwork = va_arg(param, curl_conv_callback);
1759 case CURLOPT_CONV_TO_NETWORK_FUNCTION:
1761 * "Convert to network encoding" callback
1763 data->set.convtonetwork = va_arg(param, curl_conv_callback);
1765 case CURLOPT_CONV_FROM_UTF8_FUNCTION:
1767 * "Convert from UTF-8 encoding" callback
1769 data->set.convfromutf8 = va_arg(param, curl_conv_callback);
1771 case CURLOPT_IOCTLFUNCTION:
1773 * I/O control callback. Might be NULL.
1775 data->set.ioctl_func = va_arg(param, curl_ioctl_callback);
1777 case CURLOPT_IOCTLDATA:
1779 * I/O control data pointer. Might be NULL.
1781 data->set.ioctl_client = va_arg(param, void *);
1783 case CURLOPT_SSLCERT:
1785 * String that holds file name of the SSL certificate to use
1787 result = setstropt(&data->set.str[STRING_CERT],
1788 va_arg(param, char *));
1790 case CURLOPT_SSLCERTTYPE:
1792 * String that holds file type of the SSL certificate to use
1794 result = setstropt(&data->set.str[STRING_CERT_TYPE],
1795 va_arg(param, char *));
1797 case CURLOPT_SSLKEY:
1799 * String that holds file name of the SSL key to use
1801 result = setstropt(&data->set.str[STRING_KEY],
1802 va_arg(param, char *));
1804 case CURLOPT_SSLKEYTYPE:
1806 * String that holds file type of the SSL key to use
1808 result = setstropt(&data->set.str[STRING_KEY_TYPE],
1809 va_arg(param, char *));
1811 case CURLOPT_KEYPASSWD:
1813 * String that holds the SSL or SSH private key password.
1815 result = setstropt(&data->set.str[STRING_KEY_PASSWD],
1816 va_arg(param, char *));
1818 case CURLOPT_SSLENGINE:
1820 * String that holds the SSL crypto engine.
1822 argptr = va_arg(param, char *);
1823 if(argptr && argptr[0])
1824 result = Curl_ssl_set_engine(data, argptr);
1827 case CURLOPT_SSLENGINE_DEFAULT:
1829 * flag to set engine as default.
1831 result = Curl_ssl_set_engine_default(data);
1835 * Kludgy option to enable CRLF conversions. Subject for removal.
1837 data->set.crlf = (0 != va_arg(param, long))?TRUE:FALSE;
1840 case CURLOPT_INTERFACE:
1842 * Set what interface or address/hostname to bind the socket to when
1843 * performing an operation and thus what from-IP your connection will use.
1845 result = setstropt(&data->set.str[STRING_DEVICE],
1846 va_arg(param, char *));
1848 case CURLOPT_LOCALPORT:
1850 * Set what local port to bind the socket to when performing an operation.
1852 data->set.localport = curlx_sltous(va_arg(param, long));
1854 case CURLOPT_LOCALPORTRANGE:
1856 * Set number of local ports to try, starting with CURLOPT_LOCALPORT.
1858 data->set.localportrange = curlx_sltosi(va_arg(param, long));
1860 case CURLOPT_KRBLEVEL:
1862 * A string that defines the kerberos security level.
1864 result = setstropt(&data->set.str[STRING_KRB_LEVEL],
1865 va_arg(param, char *));
1866 data->set.krb = (NULL != data->set.str[STRING_KRB_LEVEL])?TRUE:FALSE;
1868 case CURLOPT_GSSAPI_DELEGATION:
1870 * GSSAPI credential delegation
1872 data->set.gssapi_delegation = va_arg(param, long);
1874 case CURLOPT_SSL_VERIFYPEER:
1876 * Enable peer SSL verifying.
1878 data->set.ssl.verifypeer = (0 != va_arg(param, long))?TRUE:FALSE;
1880 case CURLOPT_SSL_VERIFYHOST:
1882 * Enable verification of the host name in the peer certificate
1884 arg = va_arg(param, long);
1886 /* Obviously people are not reading documentation and too many thought
1887 this argument took a boolean when it wasn't and misused it. We thus ban
1888 1 as a sensible input and we warn about its use. Then we only have the
1889 2 action internally stored as TRUE. */
1892 failf(data, "CURLOPT_SSL_VERIFYHOST no longer supports 1 as value!");
1893 return CURLE_BAD_FUNCTION_ARGUMENT;
1896 data->set.ssl.verifyhost = (0 != arg)?TRUE:FALSE;
1899 /* since these two options are only possible to use on an OpenSSL-
1900 powered libcurl we #ifdef them on this condition so that libcurls
1901 built against other SSL libs will return a proper error when trying
1902 to set this option! */
1903 case CURLOPT_SSL_CTX_FUNCTION:
1905 * Set a SSL_CTX callback
1907 data->set.ssl.fsslctx = va_arg(param, curl_ssl_ctx_callback);
1909 case CURLOPT_SSL_CTX_DATA:
1911 * Set a SSL_CTX callback parameter pointer
1913 data->set.ssl.fsslctxp = va_arg(param, void *);
1916 #if defined(USE_SSLEAY) || defined(USE_QSOSSL) || defined(USE_GSKIT)
1917 case CURLOPT_CERTINFO:
1918 data->set.ssl.certinfo = (0 != va_arg(param, long))?TRUE:FALSE;
1921 case CURLOPT_CAINFO:
1923 * Set CA info for SSL connection. Specify file name of the CA certificate
1925 result = setstropt(&data->set.str[STRING_SSL_CAFILE],
1926 va_arg(param, char *));
1928 case CURLOPT_CAPATH:
1930 * Set CA path info for SSL connection. Specify directory name of the CA
1931 * certificates which have been prepared using openssl c_rehash utility.
1933 /* This does not work on windows. */
1934 result = setstropt(&data->set.str[STRING_SSL_CAPATH],
1935 va_arg(param, char *));
1937 case CURLOPT_CRLFILE:
1939 * Set CRL file info for SSL connection. Specify file name of the CRL
1940 * to check certificates revocation
1942 result = setstropt(&data->set.str[STRING_SSL_CRLFILE],
1943 va_arg(param, char *));
1945 case CURLOPT_ISSUERCERT:
1947 * Set Issuer certificate file
1948 * to check certificates issuer
1950 result = setstropt(&data->set.str[STRING_SSL_ISSUERCERT],
1951 va_arg(param, char *));
1953 case CURLOPT_TELNETOPTIONS:
1955 * Set a linked list of telnet options
1957 data->set.telnet_options = va_arg(param, struct curl_slist *);
1960 case CURLOPT_BUFFERSIZE:
1962 * The application kindly asks for a differently sized receive buffer.
1963 * If it seems reasonable, we'll use it.
1965 data->set.buffer_size = va_arg(param, long);
1967 if((data->set.buffer_size> (BUFSIZE -1 )) ||
1968 (data->set.buffer_size < 1))
1969 data->set.buffer_size = 0; /* huge internal default */
1973 case CURLOPT_NOSIGNAL:
1975 * The application asks not to set any signal() or alarm() handlers,
1976 * even when using a timeout.
1978 data->set.no_signal = (0 != va_arg(param, long))?TRUE:FALSE;
1983 struct Curl_share *set;
1984 set = va_arg(param, struct Curl_share *);
1986 /* disconnect from old share, if any */
1988 Curl_share_lock(data, CURL_LOCK_DATA_SHARE, CURL_LOCK_ACCESS_SINGLE);
1990 if(data->dns.hostcachetype == HCACHE_SHARED) {
1991 data->dns.hostcache = NULL;
1992 data->dns.hostcachetype = HCACHE_NONE;
1995 #if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
1996 if(data->share->cookies == data->cookies)
1997 data->cookies = NULL;
2000 if(data->share->sslsession == data->state.session)
2001 data->state.session = NULL;
2003 data->share->dirty--;
2005 Curl_share_unlock(data, CURL_LOCK_DATA_SHARE);
2009 /* use new share if it set */
2013 Curl_share_lock(data, CURL_LOCK_DATA_SHARE, CURL_LOCK_ACCESS_SINGLE);
2015 data->share->dirty++;
2017 if(data->share->hostcache) {
2018 /* use shared host cache */
2019 data->dns.hostcache = data->share->hostcache;
2020 data->dns.hostcachetype = HCACHE_SHARED;
2022 #if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
2023 if(data->share->cookies) {
2024 /* use shared cookie list, first free own one if any */
2026 Curl_cookie_cleanup(data->cookies);
2027 /* enable cookies since we now use a share that uses cookies! */
2028 data->cookies = data->share->cookies;
2030 #endif /* CURL_DISABLE_HTTP */
2031 if(data->share->sslsession) {
2032 data->set.ssl.max_ssl_sessions = data->share->max_ssl_sessions;
2033 data->state.session = data->share->sslsession;
2035 Curl_share_unlock(data, CURL_LOCK_DATA_SHARE);
2038 /* check for host cache not needed,
2039 * it will be done by curl_easy_perform */
2043 case CURLOPT_PRIVATE:
2045 * Set private data pointer.
2047 data->set.private_data = va_arg(param, void *);
2050 case CURLOPT_MAXFILESIZE:
2052 * Set the maximum size of a file to download.
2054 data->set.max_filesize = va_arg(param, long);
2058 case CURLOPT_USE_SSL:
2060 * Make transfers attempt to use SSL/TLS.
2062 data->set.use_ssl = (curl_usessl)va_arg(param, long);
2065 case CURLOPT_SSL_OPTIONS:
2066 arg = va_arg(param, long);
2067 data->set.ssl_enable_beast = arg&CURLSSLOPT_ALLOW_BEAST?TRUE:FALSE;
2071 case CURLOPT_FTPSSLAUTH:
2073 * Set a specific auth for FTP-SSL transfers.
2075 data->set.ftpsslauth = (curl_ftpauth)va_arg(param, long);
2078 case CURLOPT_IPRESOLVE:
2079 data->set.ipver = va_arg(param, long);
2082 case CURLOPT_MAXFILESIZE_LARGE:
2084 * Set the maximum size of a file to download.
2086 data->set.max_filesize = va_arg(param, curl_off_t);
2089 case CURLOPT_TCP_NODELAY:
2091 * Enable or disable TCP_NODELAY, which will disable/enable the Nagle
2094 data->set.tcp_nodelay = (0 != va_arg(param, long))?TRUE:FALSE;
2097 case CURLOPT_FTP_ACCOUNT:
2098 result = setstropt(&data->set.str[STRING_FTP_ACCOUNT],
2099 va_arg(param, char *));
2102 case CURLOPT_IGNORE_CONTENT_LENGTH:
2103 data->set.ignorecl = (0 != va_arg(param, long))?TRUE:FALSE;
2106 case CURLOPT_CONNECT_ONLY:
2108 * No data transfer, set up connection and let application use the socket
2110 data->set.connect_only = (0 != va_arg(param, long))?TRUE:FALSE;
2113 case CURLOPT_FTP_ALTERNATIVE_TO_USER:
2114 result = setstropt(&data->set.str[STRING_FTP_ALTERNATIVE_TO_USER],
2115 va_arg(param, char *));
2118 case CURLOPT_SOCKOPTFUNCTION:
2120 * socket callback function: called after socket() but before connect()
2122 data->set.fsockopt = va_arg(param, curl_sockopt_callback);
2125 case CURLOPT_SOCKOPTDATA:
2127 * socket callback data pointer. Might be NULL.
2129 data->set.sockopt_client = va_arg(param, void *);
2132 case CURLOPT_OPENSOCKETFUNCTION:
2134 * open/create socket callback function: called instead of socket(),
2137 data->set.fopensocket = va_arg(param, curl_opensocket_callback);
2140 case CURLOPT_OPENSOCKETDATA:
2142 * socket callback data pointer. Might be NULL.
2144 data->set.opensocket_client = va_arg(param, void *);
2147 case CURLOPT_CLOSESOCKETFUNCTION:
2149 * close socket callback function: called instead of close()
2150 * when shutting down a connection
2152 data->set.fclosesocket = va_arg(param, curl_closesocket_callback);
2155 case CURLOPT_CLOSESOCKETDATA:
2157 * socket callback data pointer. Might be NULL.
2159 data->set.closesocket_client = va_arg(param, void *);
2162 case CURLOPT_SSL_SESSIONID_CACHE:
2163 data->set.ssl.sessionid = (0 != va_arg(param, long))?TRUE:FALSE;
2167 /* we only include SSH options if explicitly built to support SSH */
2168 case CURLOPT_SSH_AUTH_TYPES:
2169 data->set.ssh_auth_types = va_arg(param, long);
2172 case CURLOPT_SSH_PUBLIC_KEYFILE:
2174 * Use this file instead of the $HOME/.ssh/id_dsa.pub file
2176 result = setstropt(&data->set.str[STRING_SSH_PUBLIC_KEY],
2177 va_arg(param, char *));
2180 case CURLOPT_SSH_PRIVATE_KEYFILE:
2182 * Use this file instead of the $HOME/.ssh/id_dsa file
2184 result = setstropt(&data->set.str[STRING_SSH_PRIVATE_KEY],
2185 va_arg(param, char *));
2187 case CURLOPT_SSH_HOST_PUBLIC_KEY_MD5:
2189 * Option to allow for the MD5 of the host public key to be checked
2190 * for validation purposes.
2192 result = setstropt(&data->set.str[STRING_SSH_HOST_PUBLIC_KEY_MD5],
2193 va_arg(param, char *));
2195 #ifdef HAVE_LIBSSH2_KNOWNHOST_API
2196 case CURLOPT_SSH_KNOWNHOSTS:
2198 * Store the file name to read known hosts from.
2200 result = setstropt(&data->set.str[STRING_SSH_KNOWNHOSTS],
2201 va_arg(param, char *));
2204 case CURLOPT_SSH_KEYFUNCTION:
2205 /* setting to NULL is fine since the ssh.c functions themselves will
2206 then rever to use the internal default */
2207 data->set.ssh_keyfunc = va_arg(param, curl_sshkeycallback);
2210 case CURLOPT_SSH_KEYDATA:
2212 * Custom client data to pass to the SSH keyfunc callback
2214 data->set.ssh_keyfunc_userp = va_arg(param, void *);
2216 #endif /* HAVE_LIBSSH2_KNOWNHOST_API */
2218 #endif /* USE_LIBSSH2 */
2220 case CURLOPT_HTTP_TRANSFER_DECODING:
2222 * disable libcurl transfer encoding is used
2224 data->set.http_te_skip = (0 == va_arg(param, long))?TRUE:FALSE;
2227 case CURLOPT_HTTP_CONTENT_DECODING:
2229 * raw data passed to the application when content encoding is used
2231 data->set.http_ce_skip = (0 == va_arg(param, long))?TRUE:FALSE;
2234 case CURLOPT_NEW_FILE_PERMS:
2236 * Uses these permissions instead of 0644
2238 data->set.new_file_perms = va_arg(param, long);
2241 case CURLOPT_NEW_DIRECTORY_PERMS:
2243 * Uses these permissions instead of 0755
2245 data->set.new_directory_perms = va_arg(param, long);
2248 case CURLOPT_ADDRESS_SCOPE:
2250 * We always get longs when passed plain numericals, but for this value we
2251 * know that an unsigned int will always hold the value so we blindly
2252 * typecast to this type
2254 data->set.scope = curlx_sltoui(va_arg(param, long));
2257 case CURLOPT_PROTOCOLS:
2258 /* set the bitmask for the protocols that are allowed to be used for the
2259 transfer, which thus helps the app which takes URLs from users or other
2260 external inputs and want to restrict what protocol(s) to deal
2261 with. Defaults to CURLPROTO_ALL. */
2262 data->set.allowed_protocols = va_arg(param, long);
2265 case CURLOPT_REDIR_PROTOCOLS:
2266 /* set the bitmask for the protocols that libcurl is allowed to follow to,
2267 as a subset of the CURLOPT_PROTOCOLS ones. That means the protocol needs
2268 to be set in both bitmasks to be allowed to get redirected to. Defaults
2269 to all protocols except FILE and SCP. */
2270 data->set.redir_protocols = va_arg(param, long);
2273 case CURLOPT_MAIL_FROM:
2274 /* Set the SMTP mail originator */
2275 result = setstropt(&data->set.str[STRING_MAIL_FROM],
2276 va_arg(param, char *));
2279 case CURLOPT_MAIL_AUTH:
2280 /* Set the SMTP auth originator */
2281 result = setstropt(&data->set.str[STRING_MAIL_AUTH],
2282 va_arg(param, char *));
2285 case CURLOPT_MAIL_RCPT:
2286 /* Set the list of mail recipients */
2287 data->set.mail_rcpt = va_arg(param, struct curl_slist *);
2290 case CURLOPT_SASL_IR:
2291 /* Enable/disable SASL initial response */
2292 data->set.sasl_ir = (0 != va_arg(param, long)) ? TRUE : FALSE;
2295 case CURLOPT_RTSP_REQUEST:
2298 * Set the RTSP request method (OPTIONS, SETUP, PLAY, etc...)
2299 * Would this be better if the RTSPREQ_* were just moved into here?
2301 long curl_rtspreq = va_arg(param, long);
2302 Curl_RtspReq rtspreq = RTSPREQ_NONE;
2303 switch(curl_rtspreq) {
2304 case CURL_RTSPREQ_OPTIONS:
2305 rtspreq = RTSPREQ_OPTIONS;
2308 case CURL_RTSPREQ_DESCRIBE:
2309 rtspreq = RTSPREQ_DESCRIBE;
2312 case CURL_RTSPREQ_ANNOUNCE:
2313 rtspreq = RTSPREQ_ANNOUNCE;
2316 case CURL_RTSPREQ_SETUP:
2317 rtspreq = RTSPREQ_SETUP;
2320 case CURL_RTSPREQ_PLAY:
2321 rtspreq = RTSPREQ_PLAY;
2324 case CURL_RTSPREQ_PAUSE:
2325 rtspreq = RTSPREQ_PAUSE;
2328 case CURL_RTSPREQ_TEARDOWN:
2329 rtspreq = RTSPREQ_TEARDOWN;
2332 case CURL_RTSPREQ_GET_PARAMETER:
2333 rtspreq = RTSPREQ_GET_PARAMETER;
2336 case CURL_RTSPREQ_SET_PARAMETER:
2337 rtspreq = RTSPREQ_SET_PARAMETER;
2340 case CURL_RTSPREQ_RECORD:
2341 rtspreq = RTSPREQ_RECORD;
2344 case CURL_RTSPREQ_RECEIVE:
2345 rtspreq = RTSPREQ_RECEIVE;
2348 rtspreq = RTSPREQ_NONE;
2351 data->set.rtspreq = rtspreq;
2356 case CURLOPT_RTSP_SESSION_ID:
2358 * Set the RTSP Session ID manually. Useful if the application is
2359 * resuming a previously established RTSP session
2361 result = setstropt(&data->set.str[STRING_RTSP_SESSION_ID],
2362 va_arg(param, char *));
2365 case CURLOPT_RTSP_STREAM_URI:
2367 * Set the Stream URI for the RTSP request. Unless the request is
2368 * for generic server options, the application will need to set this.
2370 result = setstropt(&data->set.str[STRING_RTSP_STREAM_URI],
2371 va_arg(param, char *));
2374 case CURLOPT_RTSP_TRANSPORT:
2376 * The content of the Transport: header for the RTSP request
2378 result = setstropt(&data->set.str[STRING_RTSP_TRANSPORT],
2379 va_arg(param, char *));
2382 case CURLOPT_RTSP_CLIENT_CSEQ:
2384 * Set the CSEQ number to issue for the next RTSP request. Useful if the
2385 * application is resuming a previously broken connection. The CSEQ
2386 * will increment from this new number henceforth.
2388 data->state.rtsp_next_client_CSeq = va_arg(param, long);
2391 case CURLOPT_RTSP_SERVER_CSEQ:
2392 /* Same as the above, but for server-initiated requests */
2393 data->state.rtsp_next_client_CSeq = va_arg(param, long);
2396 case CURLOPT_INTERLEAVEDATA:
2397 data->set.rtp_out = va_arg(param, void *);
2399 case CURLOPT_INTERLEAVEFUNCTION:
2400 /* Set the user defined RTP write function */
2401 data->set.fwrite_rtp = va_arg(param, curl_write_callback);
2404 case CURLOPT_WILDCARDMATCH:
2405 data->set.wildcardmatch = (0 != va_arg(param, long))?TRUE:FALSE;
2407 case CURLOPT_CHUNK_BGN_FUNCTION:
2408 data->set.chunk_bgn = va_arg(param, curl_chunk_bgn_callback);
2410 case CURLOPT_CHUNK_END_FUNCTION:
2411 data->set.chunk_end = va_arg(param, curl_chunk_end_callback);
2413 case CURLOPT_FNMATCH_FUNCTION:
2414 data->set.fnmatch = va_arg(param, curl_fnmatch_callback);
2416 case CURLOPT_CHUNK_DATA:
2417 data->wildcard.customptr = va_arg(param, void *);
2419 case CURLOPT_FNMATCH_DATA:
2420 data->set.fnmatch_data = va_arg(param, void *);
2423 case CURLOPT_TLSAUTH_USERNAME:
2424 result = setstropt(&data->set.str[STRING_TLSAUTH_USERNAME],
2425 va_arg(param, char *));
2426 if(data->set.str[STRING_TLSAUTH_USERNAME] && !data->set.ssl.authtype)
2427 data->set.ssl.authtype = CURL_TLSAUTH_SRP; /* default to SRP */
2429 case CURLOPT_TLSAUTH_PASSWORD:
2430 result = setstropt(&data->set.str[STRING_TLSAUTH_PASSWORD],
2431 va_arg(param, char *));
2432 if(data->set.str[STRING_TLSAUTH_USERNAME] && !data->set.ssl.authtype)
2433 data->set.ssl.authtype = CURL_TLSAUTH_SRP; /* default to SRP */
2435 case CURLOPT_TLSAUTH_TYPE:
2436 if(strnequal((char *)va_arg(param, char *), "SRP", strlen("SRP")))
2437 data->set.ssl.authtype = CURL_TLSAUTH_SRP;
2439 data->set.ssl.authtype = CURL_TLSAUTH_NONE;
2442 case CURLOPT_DNS_SERVERS:
2443 result = Curl_set_dns_servers(data, va_arg(param, char *));
2446 case CURLOPT_TCP_KEEPALIVE:
2447 data->set.tcp_keepalive = (0 != va_arg(param, long))?TRUE:FALSE;
2449 case CURLOPT_TCP_KEEPIDLE:
2450 data->set.tcp_keepidle = va_arg(param, long);
2452 case CURLOPT_TCP_KEEPINTVL:
2453 data->set.tcp_keepintvl = va_arg(param, long);
2457 /* unknown tag and its companion, just ignore: */
2458 result = CURLE_UNKNOWN_OPTION;
2465 static void conn_free(struct connectdata *conn)
2470 /* possible left-overs from the async name resolvers */
2471 Curl_resolver_cancel(conn);
2473 /* close the SSL stuff before we close any sockets since they will/may
2474 write to the sockets */
2475 Curl_ssl_close(conn, FIRSTSOCKET);
2476 Curl_ssl_close(conn, SECONDARYSOCKET);
2478 /* close possibly still open sockets */
2479 if(CURL_SOCKET_BAD != conn->sock[SECONDARYSOCKET])
2480 Curl_closesocket(conn, conn->sock[SECONDARYSOCKET]);
2481 if(CURL_SOCKET_BAD != conn->sock[FIRSTSOCKET])
2482 Curl_closesocket(conn, conn->sock[FIRSTSOCKET]);
2484 #if defined(USE_NTLM) && defined(NTLM_WB_ENABLED)
2485 Curl_ntlm_wb_cleanup(conn);
2488 Curl_safefree(conn->user);
2489 Curl_safefree(conn->passwd);
2490 Curl_safefree(conn->options);
2491 Curl_safefree(conn->proxyuser);
2492 Curl_safefree(conn->proxypasswd);
2493 Curl_safefree(conn->allocptr.proxyuserpwd);
2494 Curl_safefree(conn->allocptr.uagent);
2495 Curl_safefree(conn->allocptr.userpwd);
2496 Curl_safefree(conn->allocptr.accept_encoding);
2497 Curl_safefree(conn->allocptr.te);
2498 Curl_safefree(conn->allocptr.rangeline);
2499 Curl_safefree(conn->allocptr.ref);
2500 Curl_safefree(conn->allocptr.host);
2501 Curl_safefree(conn->allocptr.cookiehost);
2502 Curl_safefree(conn->allocptr.rtsp_transport);
2503 Curl_safefree(conn->trailer);
2504 Curl_safefree(conn->host.rawalloc); /* host name buffer */
2505 Curl_safefree(conn->proxy.rawalloc); /* proxy name buffer */
2506 Curl_safefree(conn->master_buffer);
2508 Curl_llist_destroy(conn->send_pipe, NULL);
2509 Curl_llist_destroy(conn->recv_pipe, NULL);
2511 conn->send_pipe = NULL;
2512 conn->recv_pipe = NULL;
2514 Curl_safefree(conn->localdev);
2515 Curl_free_ssl_config(&conn->ssl_config);
2517 free(conn); /* free all the connection oriented data */
2520 CURLcode Curl_disconnect(struct connectdata *conn, bool dead_connection)
2522 struct SessionHandle *data;
2524 return CURLE_OK; /* this is closed and fine already */
2528 DEBUGF(fprintf(stderr, "DISCONNECT without easy handle, ignoring\n"));
2532 if(conn->dns_entry != NULL) {
2533 Curl_resolv_unlock(data, conn->dns_entry);
2534 conn->dns_entry = NULL;
2537 Curl_hostcache_prune(data); /* kill old DNS cache entries */
2540 int has_host_ntlm = (conn->ntlm.state != NTLMSTATE_NONE);
2541 int has_proxy_ntlm = (conn->proxyntlm.state != NTLMSTATE_NONE);
2543 /* Authentication data is a mix of connection-related and sessionhandle-
2544 related stuff. NTLM is connection-related so when we close the shop
2548 data->state.authhost.done = FALSE;
2549 data->state.authhost.picked =
2550 data->state.authhost.want;
2553 if(has_proxy_ntlm) {
2554 data->state.authproxy.done = FALSE;
2555 data->state.authproxy.picked =
2556 data->state.authproxy.want;
2559 if(has_host_ntlm || has_proxy_ntlm)
2560 data->state.authproblem = FALSE;
2563 /* Cleanup NTLM connection-related data */
2564 Curl_http_ntlm_cleanup(conn);
2566 /* Cleanup possible redirect junk */
2567 if(data->req.newurl) {
2568 free(data->req.newurl);
2569 data->req.newurl = NULL;
2572 if(conn->handler->disconnect)
2573 /* This is set if protocol-specific cleanups should be made */
2574 conn->handler->disconnect(conn, dead_connection);
2576 /* unlink ourselves! */
2577 infof(data, "Closing connection %ld\n", conn->connection_id);
2578 Curl_conncache_remove_conn(data->state.conn_cache, conn);
2580 #if defined(USE_LIBIDN)
2581 if(conn->host.encalloc)
2582 idn_free(conn->host.encalloc); /* encoded host name buffer, must be freed
2583 with idn_free() since this was allocated
2585 if(conn->proxy.encalloc)
2586 idn_free(conn->proxy.encalloc); /* encoded proxy name buffer, must be
2587 freed with idn_free() since this was
2588 allocated by libidn */
2589 #elif defined(USE_WIN32_IDN)
2590 free(conn->host.encalloc); /* encoded host name buffer, must be freed with
2591 idn_free() since this was allocated by
2592 curl_win32_idn_to_ascii */
2593 if(conn->proxy.encalloc)
2594 free(conn->proxy.encalloc); /* encoded proxy name buffer, must be freed
2595 with idn_free() since this was allocated by
2596 curl_win32_idn_to_ascii */
2599 Curl_ssl_close(conn, FIRSTSOCKET);
2601 /* Indicate to all handles on the pipe that we're dead */
2602 if(Curl_multi_pipeline_enabled(data->multi)) {
2603 signalPipeClose(conn->send_pipe, TRUE);
2604 signalPipeClose(conn->recv_pipe, TRUE);
2609 Curl_speedinit(data);
2615 * This function should return TRUE if the socket is to be assumed to
2616 * be dead. Most commonly this happens when the server has closed the
2617 * connection due to inactivity.
2619 static bool SocketIsDead(curl_socket_t sock)
2622 bool ret_val = TRUE;
2624 sval = Curl_socket_ready(sock, CURL_SOCKET_BAD, 0);
2632 static bool IsPipeliningPossible(const struct SessionHandle *handle,
2633 const struct connectdata *conn)
2635 if((conn->handler->protocol & CURLPROTO_HTTP) &&
2636 Curl_multi_pipeline_enabled(handle->multi) &&
2637 (handle->set.httpreq == HTTPREQ_GET ||
2638 handle->set.httpreq == HTTPREQ_HEAD) &&
2639 handle->set.httpversion != CURL_HTTP_VERSION_1_0)
2645 bool Curl_isPipeliningEnabled(const struct SessionHandle *handle)
2647 return Curl_multi_pipeline_enabled(handle->multi);
2650 CURLcode Curl_addHandleToPipeline(struct SessionHandle *data,
2651 struct curl_llist *pipeline)
2653 if(!Curl_llist_insert_next(pipeline, pipeline->tail, data))
2654 return CURLE_OUT_OF_MEMORY;
2655 infof(data, "Curl_addHandleToPipeline: length: %d\n", pipeline->size);
2659 int Curl_removeHandleFromPipeline(struct SessionHandle *handle,
2660 struct curl_llist *pipeline)
2662 struct curl_llist_element *curr;
2664 curr = pipeline->head;
2666 if(curr->ptr == handle) {
2667 Curl_llist_remove(pipeline, curr, NULL);
2668 return 1; /* we removed a handle */
2676 #if 0 /* this code is saved here as it is useful for debugging purposes */
2677 static void Curl_printPipeline(struct curl_llist *pipeline)
2679 struct curl_llist_element *curr;
2681 curr = pipeline->head;
2683 struct SessionHandle *data = (struct SessionHandle *) curr->ptr;
2684 infof(data, "Handle in pipeline: %s\n", data->state.path);
2690 static struct SessionHandle* gethandleathead(struct curl_llist *pipeline)
2692 struct curl_llist_element *curr = pipeline->head;
2694 return (struct SessionHandle *) curr->ptr;
2700 /* remove the specified connection from all (possible) pipelines and related
2702 void Curl_getoff_all_pipelines(struct SessionHandle *data,
2703 struct connectdata *conn)
2705 bool recv_head = (conn->readchannel_inuse &&
2706 (gethandleathead(conn->recv_pipe) == data)) ? TRUE : FALSE;
2708 bool send_head = (conn->writechannel_inuse &&
2709 (gethandleathead(conn->send_pipe) == data)) ? TRUE : FALSE;
2711 if(Curl_removeHandleFromPipeline(data, conn->recv_pipe) && recv_head)
2712 conn->readchannel_inuse = FALSE;
2713 if(Curl_removeHandleFromPipeline(data, conn->send_pipe) && send_head)
2714 conn->writechannel_inuse = FALSE;
2717 static void signalPipeClose(struct curl_llist *pipeline, bool pipe_broke)
2719 struct curl_llist_element *curr;
2724 curr = pipeline->head;
2726 struct curl_llist_element *next = curr->next;
2727 struct SessionHandle *data = (struct SessionHandle *) curr->ptr;
2729 #ifdef DEBUGBUILD /* debug-only code */
2730 if(data->magic != CURLEASY_MAGIC_NUMBER) {
2732 infof(data, "signalPipeClose() found BAAD easy handle\n");
2737 data->state.pipe_broke = TRUE;
2738 Curl_multi_handlePipeBreak(data);
2739 Curl_llist_remove(pipeline, curr, NULL);
2745 * This function finds the connection in the connection
2746 * cache that has been unused for the longest time.
2748 * Returns the pointer to the oldest idle connection, or NULL if none was
2751 static struct connectdata *
2752 find_oldest_idle_connection(struct SessionHandle *data)
2754 struct conncache *bc = data->state.conn_cache;
2755 struct curl_hash_iterator iter;
2756 struct curl_llist_element *curr;
2757 struct curl_hash_element *he;
2761 struct connectdata *conn_candidate = NULL;
2762 struct connectbundle *bundle;
2766 Curl_hash_start_iterate(bc->hash, &iter);
2768 he = Curl_hash_next_element(&iter);
2770 struct connectdata *conn;
2774 curr = bundle->conn_list->head;
2779 /* Set higher score for the age passed since the connection was used */
2780 score = Curl_tvdiff(now, conn->now);
2782 if(score > highscore) {
2784 conn_candidate = conn;
2790 he = Curl_hash_next_element(&iter);
2793 return conn_candidate;
2797 * This function finds the connection in the connection
2798 * bundle that has been unused for the longest time.
2800 * Returns the pointer to the oldest idle connection, or NULL if none was
2803 static struct connectdata *
2804 find_oldest_idle_connection_in_bundle(struct SessionHandle *data,
2805 struct connectbundle *bundle)
2807 struct curl_llist_element *curr;
2811 struct connectdata *conn_candidate = NULL;
2812 struct connectdata *conn;
2818 curr = bundle->conn_list->head;
2823 /* Set higher score for the age passed since the connection was used */
2824 score = Curl_tvdiff(now, conn->now);
2826 if(score > highscore) {
2828 conn_candidate = conn;
2834 return conn_candidate;
2838 * Given one filled in connection struct (named needle), this function should
2839 * detect if there already is one that has all the significant details
2840 * exactly the same and thus should be used instead.
2842 * If there is a match, this function returns TRUE - and has marked the
2843 * connection as 'in-use'. It must later be called with ConnectionDone() to
2844 * return back to 'idle' (unused) state.
2846 * The force_reuse flag is set if the connection must be used, even if
2847 * the pipelining strategy wants to open a new connection instead of reusing.
2850 ConnectionExists(struct SessionHandle *data,
2851 struct connectdata *needle,
2852 struct connectdata **usethis,
2855 struct connectdata *check;
2856 struct connectdata *chosen = 0;
2857 bool canPipeline = IsPipeliningPossible(data, needle);
2858 bool wantNTLM = (data->state.authhost.want==CURLAUTH_NTLM) ||
2859 (data->state.authhost.want==CURLAUTH_NTLM_WB) ? TRUE : FALSE;
2860 struct connectbundle *bundle;
2862 *force_reuse = FALSE;
2864 /* We can't pipe if the site is blacklisted */
2865 if(canPipeline && Curl_pipeline_site_blacklisted(data, needle)) {
2866 canPipeline = FALSE;
2869 /* Look up the bundle with all the connections to this
2871 bundle = Curl_conncache_find_bundle(data->state.conn_cache,
2874 size_t max_pipe_len = Curl_multi_max_pipeline_length(data->multi);
2875 size_t best_pipe_len = max_pipe_len;
2876 struct curl_llist_element *curr;
2878 infof(data, "Found bundle for host %s: %p\n",
2879 needle->host.name, (void *)bundle);
2881 /* We can't pipe if we don't know anything about the server */
2882 if(canPipeline && !bundle->server_supports_pipelining) {
2883 infof(data, "Server doesn't support pipelining\n");
2884 canPipeline = FALSE;
2887 curr = bundle->conn_list->head;
2890 bool credentialsMatch = FALSE;
2894 * Note that if we use a HTTP proxy, we check connections to that
2895 * proxy and not to the actual remote server.
2900 pipeLen = check->send_pipe->size + check->recv_pipe->size;
2902 if(!pipeLen && !check->inuse) {
2903 /* The check for a dead socket makes sense only if there are no
2904 handles in pipeline and the connection isn't already marked in
2907 if(check->handler->protocol & CURLPROTO_RTSP)
2908 /* RTSP is a special case due to RTP interleaving */
2909 dead = Curl_rtsp_connisdead(check);
2911 dead = SocketIsDead(check->sock[FIRSTSOCKET]);
2915 infof(data, "Connection %ld seems to be dead!\n",
2916 check->connection_id);
2918 /* disconnect resources */
2919 Curl_disconnect(check, /* dead_connection */ TRUE);
2925 /* Make sure the pipe has only GET requests */
2926 struct SessionHandle* sh = gethandleathead(check->send_pipe);
2927 struct SessionHandle* rh = gethandleathead(check->recv_pipe);
2929 if(!IsPipeliningPossible(sh, check))
2933 if(!IsPipeliningPossible(rh, check))
2939 /* can only happen within multi handles, and means that another easy
2940 handle is using this connection */
2944 if(Curl_resolver_asynch()) {
2945 /* ip_addr_str[0] is NUL only if the resolving of the name hasn't
2946 completed yet and until then we don't re-use this connection */
2947 if(!check->ip_addr_str[0]) {
2949 "Connection #%ld is still name resolving, can't reuse\n",
2950 check->connection_id);
2955 if((check->sock[FIRSTSOCKET] == CURL_SOCKET_BAD) ||
2956 check->bits.close) {
2957 /* Don't pick a connection that hasn't connected yet or that is going
2959 infof(data, "Connection #%ld isn't open enough, can't reuse\n",
2960 check->connection_id);
2962 if(check->recv_pipe->size > 0) {
2964 "BAD! Unconnected #%ld has a non-empty recv pipeline!\n",
2965 check->connection_id);
2972 if((needle->handler->flags&PROTOPT_SSL) !=
2973 (check->handler->flags&PROTOPT_SSL))
2974 /* don't do mixed SSL and non-SSL connections */
2975 if(!(needle->handler->protocol & check->handler->protocol))
2976 /* except protocols that have been upgraded via TLS */
2979 if(needle->handler->flags&PROTOPT_SSL) {
2980 if((data->set.ssl.verifypeer != check->verifypeer) ||
2981 (data->set.ssl.verifyhost != check->verifyhost))
2985 if(needle->bits.proxy != check->bits.proxy)
2986 /* don't do mixed proxy and non-proxy connections */
2989 if(!canPipeline && check->inuse)
2990 /* this request can't be pipelined but the checked connection is
2991 already in use so we skip it */
2994 if(needle->localdev || needle->localport) {
2995 /* If we are bound to a specific local end (IP+port), we must not
2996 re-use a random other one, although if we didn't ask for a
2997 particular one we can reuse one that was bound.
2999 This comparison is a bit rough and too strict. Since the input
3000 parameters can be specified in numerous ways and still end up the
3001 same it would take a lot of processing to make it really accurate.
3002 Instead, this matching will assume that re-uses of bound connections
3003 will most likely also re-use the exact same binding parameters and
3004 missing out a few edge cases shouldn't hurt anyone very much.
3006 if((check->localport != needle->localport) ||
3007 (check->localportrange != needle->localportrange) ||
3009 !needle->localdev ||
3010 strcmp(check->localdev, needle->localdev))
3014 if((needle->handler->protocol & CURLPROTO_FTP) ||
3015 ((needle->handler->protocol & CURLPROTO_HTTP) && wantNTLM)) {
3016 /* This is FTP or HTTP+NTLM, verify that we're using the same name
3017 and password as well */
3018 if(!strequal(needle->user, check->user) ||
3019 !strequal(needle->passwd, check->passwd)) {
3020 /* one of them was different */
3023 credentialsMatch = TRUE;
3026 if(!needle->bits.httpproxy || needle->handler->flags&PROTOPT_SSL ||
3027 (needle->bits.httpproxy && check->bits.httpproxy &&
3028 needle->bits.tunnel_proxy && check->bits.tunnel_proxy &&
3029 Curl_raw_equal(needle->proxy.name, check->proxy.name) &&
3030 (needle->port == check->port))) {
3031 /* The requested connection does not use a HTTP proxy or it uses SSL or
3032 it is a non-SSL protocol tunneled over the same http proxy name and
3033 port number or it is a non-SSL protocol which is allowed to be
3036 if((Curl_raw_equal(needle->handler->scheme, check->handler->scheme) ||
3037 needle->handler->protocol & check->handler->protocol) &&
3038 Curl_raw_equal(needle->host.name, check->host.name) &&
3039 needle->remote_port == check->remote_port) {
3040 if(needle->handler->flags & PROTOPT_SSL) {
3041 /* This is a SSL connection so verify that we're using the same
3042 SSL options as well */
3043 if(!Curl_ssl_config_matches(&needle->ssl_config,
3044 &check->ssl_config)) {
3046 "Connection #%ld has different SSL parameters, "
3048 check->connection_id));
3051 else if(check->ssl[FIRSTSOCKET].state != ssl_connection_complete) {
3053 "Connection #%ld has not started SSL connect, "
3055 check->connection_id));
3062 else { /* The requested needle connection is using a proxy,
3063 is the checked one using the same host, port and type? */
3064 if(check->bits.proxy &&
3065 (needle->proxytype == check->proxytype) &&
3066 (needle->bits.tunnel_proxy == check->bits.tunnel_proxy) &&
3067 Curl_raw_equal(needle->proxy.name, check->proxy.name) &&
3068 needle->port == check->port) {
3069 /* This is the same proxy connection, use it! */
3075 /* If we are looking for an NTLM connection, check if this is already
3076 authenticating with the right credentials. If not, keep looking so
3077 that we can reuse NTLM connections if possible. (Especially we
3078 must not reuse the same connection if partway through
3081 if(credentialsMatch && check->ntlm.state != NTLMSTATE_NONE) {
3084 /* We must use this connection, no other */
3085 *force_reuse = TRUE;
3093 /* We can pipeline if we want to. Let's continue looking for
3094 the optimal connection to use, i.e the shortest pipe that is not
3098 /* We have the optimal connection. Let's stop looking. */
3103 /* We can't use the connection if the pipe is full */
3104 if(pipeLen >= max_pipe_len)
3107 /* We can't use the connection if the pipe is penalized */
3108 if(Curl_pipeline_penalized(data, check))
3111 if(pipeLen < best_pipe_len) {
3112 /* This connection has a shorter pipe so far. We'll pick this
3113 and continue searching */
3115 best_pipe_len = pipeLen;
3120 /* We have found a connection. Let's stop searching. */
3130 return TRUE; /* yes, we found one to use! */
3133 return FALSE; /* no matching connecting exists */
3136 /* Mark the connection as 'idle', or close it if the cache is full.
3137 Returns TRUE if the connection is kept, or FALSE if it was closed. */
3139 ConnectionDone(struct SessionHandle *data, struct connectdata *conn)
3141 /* data->multi->maxconnects can be negative, deal with it. */
3142 size_t maxconnects =
3143 (data->multi->maxconnects < 0) ? 0 : data->multi->maxconnects;
3144 struct connectdata *conn_candidate = NULL;
3146 /* Mark the current connection as 'unused' */
3147 conn->inuse = FALSE;
3149 if(maxconnects > 0 &&
3150 data->state.conn_cache->num_connections > maxconnects) {
3151 infof(data, "Connection cache is full, closing the oldest one.\n");
3153 conn_candidate = find_oldest_idle_connection(data);
3155 if(conn_candidate) {
3156 /* Set the connection's owner correctly */
3157 conn_candidate->data = data;
3159 /* the winner gets the honour of being disconnected */
3160 (void)Curl_disconnect(conn_candidate, /* dead_connection */ FALSE);
3164 return (conn_candidate == conn) ? FALSE : TRUE;
3168 * The given input connection struct pointer is to be stored in the connection
3169 * cache. If the cache is already full, least interesting existing connection
3170 * (if any) gets closed.
3172 * The given connection should be unique. That must've been checked prior to
3175 static CURLcode ConnectionStore(struct SessionHandle *data,
3176 struct connectdata *conn)
3178 static int connection_id_counter = 0;
3182 /* Assign a number to the connection for easier tracking in the log
3184 conn->connection_id = connection_id_counter++;
3186 result = Curl_conncache_add_conn(data->state.conn_cache, conn);
3187 if(result != CURLE_OK)
3188 conn->connection_id = -1;
3193 /* after a TCP connection to the proxy has been verified, this function does
3194 the next magic step.
3196 Note: this function's sub-functions call failf()
3199 CURLcode Curl_connected_proxy(struct connectdata *conn)
3201 if(!conn->bits.proxy)
3204 switch(conn->proxytype) {
3205 #ifndef CURL_DISABLE_PROXY
3206 case CURLPROXY_SOCKS5:
3207 case CURLPROXY_SOCKS5_HOSTNAME:
3208 return Curl_SOCKS5(conn->proxyuser, conn->proxypasswd,
3209 conn->host.name, conn->remote_port,
3212 case CURLPROXY_SOCKS4:
3213 return Curl_SOCKS4(conn->proxyuser, conn->host.name,
3214 conn->remote_port, FIRSTSOCKET, conn, FALSE);
3216 case CURLPROXY_SOCKS4A:
3217 return Curl_SOCKS4(conn->proxyuser, conn->host.name,
3218 conn->remote_port, FIRSTSOCKET, conn, TRUE);
3220 #endif /* CURL_DISABLE_PROXY */
3221 case CURLPROXY_HTTP:
3222 case CURLPROXY_HTTP_1_0:
3223 /* do nothing here. handled later. */
3227 } /* switch proxytype */
3232 static CURLcode ConnectPlease(struct SessionHandle *data,
3233 struct connectdata *conn,
3237 Curl_addrinfo *addr;
3238 #ifndef CURL_DISABLE_VERBOSE_STRINGS
3239 char *hostname = conn->bits.proxy?conn->proxy.name:conn->host.name;
3241 infof(data, "About to connect() to %s%s port %ld (#%ld)\n",
3242 conn->bits.proxy?"proxy ":"",
3243 hostname, conn->port, conn->connection_id);
3248 /*************************************************************
3249 * Connect to server/proxy
3250 *************************************************************/
3251 result= Curl_connecthost(conn,
3253 &conn->sock[FIRSTSOCKET],
3256 if(CURLE_OK == result) {
3257 /* All is cool, we store the current information */
3258 conn->ip_addr = addr;
3261 result = Curl_connected_proxy(conn);
3263 conn->bits.tcpconnect[FIRSTSOCKET] = TRUE;
3264 Curl_pgrsTime(data, TIMER_CONNECT); /* connect done */
3270 *connected = FALSE; /* mark it as not connected */
3276 * verboseconnect() displays verbose information after a connect
3278 #ifndef CURL_DISABLE_VERBOSE_STRINGS
3279 void Curl_verboseconnect(struct connectdata *conn)
3281 if(conn->data->set.verbose)
3282 infof(conn->data, "Connected to %s (%s) port %ld (#%ld)\n",
3283 conn->bits.proxy ? conn->proxy.dispname : conn->host.dispname,
3284 conn->ip_addr_str, conn->port, conn->connection_id);
3288 int Curl_protocol_getsock(struct connectdata *conn,
3289 curl_socket_t *socks,
3292 if(conn->handler->proto_getsock)
3293 return conn->handler->proto_getsock(conn, socks, numsocks);
3294 return GETSOCK_BLANK;
3297 int Curl_doing_getsock(struct connectdata *conn,
3298 curl_socket_t *socks,
3301 if(conn && conn->handler->doing_getsock)
3302 return conn->handler->doing_getsock(conn, socks, numsocks);
3303 return GETSOCK_BLANK;
3307 * We are doing protocol-specific connecting and this is being called over and
3308 * over from the multi interface until the connection phase is done on
3312 CURLcode Curl_protocol_connecting(struct connectdata *conn,
3315 CURLcode result=CURLE_OK;
3317 if(conn && conn->handler->connecting) {
3319 result = conn->handler->connecting(conn, done);
3328 * We are DOING this is being called over and over from the multi interface
3329 * until the DOING phase is done on protocol layer.
3332 CURLcode Curl_protocol_doing(struct connectdata *conn, bool *done)
3334 CURLcode result=CURLE_OK;
3336 if(conn && conn->handler->doing) {
3338 result = conn->handler->doing(conn, done);
3347 * We have discovered that the TCP connection has been successful, we can now
3348 * proceed with some action.
3351 CURLcode Curl_protocol_connect(struct connectdata *conn,
3352 bool *protocol_done)
3354 CURLcode result=CURLE_OK;
3356 *protocol_done = FALSE;
3358 if(conn->bits.tcpconnect[FIRSTSOCKET] && conn->bits.protoconnstart) {
3359 /* We already are connected, get back. This may happen when the connect
3360 worked fine in the first call, like when we connect to a local server
3361 or proxy. Note that we don't know if the protocol is actually done.
3363 Unless this protocol doesn't have any protocol-connect callback, as
3364 then we know we're done. */
3365 if(!conn->handler->connecting)
3366 *protocol_done = TRUE;
3371 if(!conn->bits.protoconnstart) {
3373 result = Curl_proxy_connect(conn);
3377 if(conn->bits.tunnel_proxy && conn->bits.httpproxy &&
3378 (conn->tunnel_state[FIRSTSOCKET] != TUNNEL_COMPLETE))
3379 /* when using an HTTP tunnel proxy, await complete tunnel establishment
3380 before proceeding further. Return CURLE_OK so we'll be called again */
3383 if(conn->handler->connect_it) {
3384 /* is there a protocol-specific connect() procedure? */
3386 /* Call the protocol-specific connect function */
3387 result = conn->handler->connect_it(conn, protocol_done);
3390 *protocol_done = TRUE;
3392 /* it has started, possibly even completed but that knowledge isn't stored
3395 conn->bits.protoconnstart = TRUE;
3398 return result; /* pass back status */
3402 * Helpers for IDNA convertions.
3404 static bool is_ASCII_name(const char *hostname)
3406 const unsigned char *ch = (const unsigned char*)hostname;
3417 * Check if characters in hostname is allowed in Top Level Domain.
3419 static bool tld_check_name(struct SessionHandle *data,
3420 const char *ace_hostname)
3423 char *uc_name = NULL;
3425 #ifndef CURL_DISABLE_VERBOSE_STRINGS
3426 const char *tld_errmsg = "<no msg>";
3431 /* Convert (and downcase) ACE-name back into locale's character set */
3432 rc = idna_to_unicode_lzlz(ace_hostname, &uc_name, 0);
3433 if(rc != IDNA_SUCCESS)
3436 rc = tld_check_lz(uc_name, &err_pos, NULL);
3437 #ifndef CURL_DISABLE_VERBOSE_STRINGS
3438 #ifdef HAVE_TLD_STRERROR
3439 if(rc != TLD_SUCCESS)
3440 tld_errmsg = tld_strerror((Tld_rc)rc);
3442 if(rc == TLD_INVALID)
3443 infof(data, "WARNING: %s; pos %u = `%c'/0x%02X\n",
3444 tld_errmsg, err_pos, uc_name[err_pos],
3445 uc_name[err_pos] & 255);
3446 else if(rc != TLD_SUCCESS)
3447 infof(data, "WARNING: TLD check for %s failed; %s\n",
3448 uc_name, tld_errmsg);
3449 #endif /* CURL_DISABLE_VERBOSE_STRINGS */
3452 if(rc != TLD_SUCCESS)
3460 * Perform any necessary IDN conversion of hostname
3462 static void fix_hostname(struct SessionHandle *data,
3463 struct connectdata *conn, struct hostname *host)
3468 #elif defined(CURL_DISABLE_VERBOSE_STRINGS)
3472 /* set the name we use to display the host name */
3473 host->dispname = host->name;
3474 if(!is_ASCII_name(host->name)) {
3476 /*************************************************************
3477 * Check name for non-ASCII and convert hostname to ACE form.
3478 *************************************************************/
3479 if(stringprep_check_version(LIBIDN_REQUIRED_VERSION)) {
3480 char *ace_hostname = NULL;
3481 int rc = idna_to_ascii_lz(host->name, &ace_hostname, 0);
3482 infof (data, "Input domain encoded as `%s'\n",
3483 stringprep_locale_charset ());
3484 if(rc != IDNA_SUCCESS)
3485 infof(data, "Failed to convert %s to ACE; %s\n",
3486 host->name, Curl_idn_strerror(conn,rc));
3488 /* tld_check_name() displays a warning if the host name contains
3489 "illegal" characters for this TLD */
3490 (void)tld_check_name(data, ace_hostname);
3492 host->encalloc = ace_hostname;
3493 /* change the name pointer to point to the encoded hostname */
3494 host->name = host->encalloc;
3497 #elif defined(USE_WIN32_IDN)
3498 /*************************************************************
3499 * Check name for non-ASCII and convert hostname to ACE form.
3500 *************************************************************/
3501 char *ace_hostname = NULL;
3502 int rc = curl_win32_idn_to_ascii(host->name, &ace_hostname);
3504 infof(data, "Failed to convert %s to ACE;\n",
3507 host->encalloc = ace_hostname;
3508 /* change the name pointer to point to the encoded hostname */
3509 host->name = host->encalloc;
3512 infof(data, "IDN support not present, can't parse Unicode domains\n");
3517 static void llist_dtor(void *user, void *element)
3525 * Allocate and initialize a new connectdata object.
3527 static struct connectdata *allocate_conn(struct SessionHandle *data)
3529 struct connectdata *conn = calloc(1, sizeof(struct connectdata));
3533 conn->handler = &Curl_handler_dummy; /* Be sure we have a handler defined
3534 already from start to avoid NULL
3535 situations and checks */
3537 /* and we setup a few fields in case we end up actually using this struct */
3539 conn->sock[FIRSTSOCKET] = CURL_SOCKET_BAD; /* no file descriptor */
3540 conn->sock[SECONDARYSOCKET] = CURL_SOCKET_BAD; /* no file descriptor */
3541 conn->connection_id = -1; /* no ID */
3542 conn->port = -1; /* unknown at this point */
3544 /* Default protocol-independent behavior doesn't support persistent
3545 connections, so we set this to force-close. Protocols that support
3546 this need to set this to FALSE in their "curl_do" functions. */
3547 conn->bits.close = TRUE;
3549 /* Store creation time to help future close decision making */
3550 conn->created = Curl_tvnow();
3552 conn->data = data; /* Setup the association between this connection
3553 and the SessionHandle */
3555 conn->proxytype = data->set.proxytype; /* type */
3557 #ifdef CURL_DISABLE_PROXY
3559 conn->bits.proxy = FALSE;
3560 conn->bits.httpproxy = FALSE;
3561 conn->bits.proxy_user_passwd = FALSE;
3562 conn->bits.tunnel_proxy = FALSE;
3564 #else /* CURL_DISABLE_PROXY */
3566 /* note that these two proxy bits are now just on what looks to be
3567 requested, they may be altered down the road */
3568 conn->bits.proxy = (data->set.str[STRING_PROXY] &&
3569 *data->set.str[STRING_PROXY])?TRUE:FALSE;
3570 conn->bits.httpproxy = (conn->bits.proxy &&
3571 (conn->proxytype == CURLPROXY_HTTP ||
3572 conn->proxytype == CURLPROXY_HTTP_1_0))?TRUE:FALSE;
3573 conn->bits.proxy_user_passwd =
3574 (NULL != data->set.str[STRING_PROXYUSERNAME])?TRUE:FALSE;
3575 conn->bits.tunnel_proxy = data->set.tunnel_thru_httpproxy;
3577 #endif /* CURL_DISABLE_PROXY */
3579 conn->bits.user_passwd = (NULL != data->set.str[STRING_USERNAME])?TRUE:FALSE;
3580 conn->bits.ftp_use_epsv = data->set.ftp_use_epsv;
3581 conn->bits.ftp_use_eprt = data->set.ftp_use_eprt;
3583 conn->verifypeer = data->set.ssl.verifypeer;
3584 conn->verifyhost = data->set.ssl.verifyhost;
3586 conn->ip_version = data->set.ipver;
3588 #if defined(USE_NTLM) && defined(NTLM_WB_ENABLED)
3589 conn->ntlm_auth_hlpr_socket = CURL_SOCKET_BAD;
3590 conn->ntlm_auth_hlpr_pid = 0;
3591 conn->challenge_header = NULL;
3592 conn->response_header = NULL;
3595 if(Curl_multi_pipeline_enabled(data->multi) &&
3596 !conn->master_buffer) {
3597 /* Allocate master_buffer to be used for pipelining */
3598 conn->master_buffer = calloc(BUFSIZE, sizeof (char));
3599 if(!conn->master_buffer)
3603 /* Initialize the pipeline lists */
3604 conn->send_pipe = Curl_llist_alloc((curl_llist_dtor) llist_dtor);
3605 conn->recv_pipe = Curl_llist_alloc((curl_llist_dtor) llist_dtor);
3606 if(!conn->send_pipe || !conn->recv_pipe)
3609 #if defined(HAVE_KRB4) || defined(HAVE_GSSAPI)
3610 conn->data_prot = PROT_CLEAR;
3613 /* Store the local bind parameters that will be used for this connection */
3614 if(data->set.str[STRING_DEVICE]) {
3615 conn->localdev = strdup(data->set.str[STRING_DEVICE]);
3619 conn->localportrange = data->set.localportrange;
3620 conn->localport = data->set.localport;
3622 /* the close socket stuff needs to be copied to the connection struct as
3623 it may live on without (this specific) SessionHandle */
3624 conn->fclosesocket = data->set.fclosesocket;
3625 conn->closesocket_client = data->set.closesocket_client;
3630 Curl_llist_destroy(conn->send_pipe, NULL);
3631 Curl_llist_destroy(conn->recv_pipe, NULL);
3633 conn->send_pipe = NULL;
3634 conn->recv_pipe = NULL;
3636 Curl_safefree(conn->master_buffer);
3637 Curl_safefree(conn->localdev);
3638 Curl_safefree(conn);
3642 static CURLcode findprotocol(struct SessionHandle *data,
3643 struct connectdata *conn,
3644 const char *protostr)
3646 const struct Curl_handler * const *pp;
3647 const struct Curl_handler *p;
3649 /* Scan protocol handler table and match against 'protostr' to set a few
3650 variables based on the URL. Now that the handler may be changed later
3651 when the protocol specific setup function is called. */
3652 for(pp = protocols; (p = *pp) != NULL; pp++) {
3653 if(Curl_raw_equal(p->scheme, protostr)) {
3654 /* Protocol found in table. Check if allowed */
3655 if(!(data->set.allowed_protocols & p->protocol))
3659 /* it is allowed for "normal" request, now do an extra check if this is
3660 the result of a redirect */
3661 if(data->state.this_is_a_follow &&
3662 !(data->set.redir_protocols & p->protocol))
3666 /* Perform setup complement if some. */
3667 conn->handler = conn->given = p;
3669 /* 'port' and 'remote_port' are set in setup_connection_internals() */
3675 /* The protocol was not found in the table, but we don't have to assign it
3676 to anything since it is already assigned to a dummy-struct in the
3677 create_conn() function when the connectdata struct is allocated. */
3678 failf(data, "Protocol %s not supported or disabled in " LIBCURL_NAME,
3681 return CURLE_UNSUPPORTED_PROTOCOL;
3685 * Parse URL and fill in the relevant members of the connection struct.
3687 static CURLcode parseurlandfillconn(struct SessionHandle *data,
3688 struct connectdata *conn,
3690 char *user, char *passwd, char *options)
3694 char *path = data->state.path;
3700 bool rebuild_url = FALSE;
3702 *prot_missing = FALSE;
3704 /*************************************************************
3707 * We need to parse the url even when using the proxy, because we will need
3708 * the hostname and port in case we are trying to SSL connect through the
3709 * proxy -- and we don't know if we will need to use SSL until we parse the
3711 ************************************************************/
3712 if((2 == sscanf(data->change.url, "%15[^:]:%[^\n]",
3714 Curl_raw_equal(protobuf, "file")) {
3715 if(path[0] == '/' && path[1] == '/') {
3716 /* Allow omitted hostname (e.g. file:/<path>). This is not strictly
3717 * speaking a valid file: URL by RFC 1738, but treating file:/<path> as
3718 * file://localhost/<path> is similar to how other schemes treat missing
3719 * hostnames. See RFC 1808. */
3721 /* This cannot be done with strcpy() in a portable manner, since the
3722 memory areas overlap! */
3723 memmove(path, path + 2, strlen(path + 2)+1);
3726 * we deal with file://<host>/<path> differently since it supports no
3727 * hostname other than "localhost" and "127.0.0.1", which is unique among
3728 * the URL protocols specified in RFC 1738
3730 if(path[0] != '/') {
3731 /* the URL included a host name, we ignore host names in file:// URLs
3732 as the standards don't define what to do with them */
3733 char *ptr=strchr(path, '/');
3735 /* there was a slash present
3737 RFC1738 (section 3.1, page 5) says:
3739 The rest of the locator consists of data specific to the scheme,
3740 and is known as the "url-path". It supplies the details of how the
3741 specified resource can be accessed. Note that the "/" between the
3742 host (or port) and the url-path is NOT part of the url-path.
3744 As most agents use file://localhost/foo to get '/foo' although the
3745 slash preceding foo is a separator and not a slash for the path,
3746 a URL as file://localhost//foo must be valid as well, to refer to
3747 the same file with an absolute path.
3750 if(ptr[1] && ('/' == ptr[1]))
3751 /* if there was two slashes, we skip the first one as that is then
3752 used truly as a separator */
3755 /* This cannot be made with strcpy, as the memory chunks overlap! */
3756 memmove(path, ptr, strlen(ptr)+1);
3760 protop = "file"; /* protocol string */
3766 if(2 > sscanf(data->change.url,
3767 "%15[^\n:]://%[^\n/?]%[^\n]",
3769 conn->host.name, path)) {
3772 * The URL was badly formatted, let's try the browser-style _without_
3773 * protocol specified like 'http://'.
3775 rc = sscanf(data->change.url, "%[^\n/?]%[^\n]", conn->host.name, path);
3778 * We couldn't even get this format.
3779 * djgpp 2.04 has a sscanf() bug where 'conn->host.name' is
3780 * assigned, but the return value is EOF!
3782 #if defined(__DJGPP__) && (DJGPP_MINOR == 4)
3783 if(!(rc == -1 && *conn->host.name))
3786 failf(data, "<url> malformed");
3787 return CURLE_URL_MALFORMAT;
3792 * Since there was no protocol part specified, we guess what protocol it
3793 * is based on the first letters of the server name.
3796 /* Note: if you add a new protocol, please update the list in
3797 * lib/version.c too! */
3799 if(checkprefix("FTP.", conn->host.name))
3801 else if(checkprefix("DICT.", conn->host.name))
3803 else if(checkprefix("LDAP.", conn->host.name))
3805 else if(checkprefix("IMAP.", conn->host.name))
3807 else if(checkprefix("SMTP.", conn->host.name))
3809 else if(checkprefix("POP3.", conn->host.name))
3815 *prot_missing = TRUE; /* not given in URL */
3821 /* We search for '?' in the host name (but only on the right side of a
3822 * @-letter to allow ?-letters in username and password) to handle things
3823 * like http://example.com?param= (notice the missing '/').
3825 at = strchr(conn->host.name, '@');
3827 query = strchr(at+1, '?');
3829 query = strchr(conn->host.name, '?');
3832 /* We must insert a slash before the '?'-letter in the URL. If the URL had
3833 a slash after the '?', that is where the path currently begins and the
3834 '?string' is still part of the host name.
3836 We must move the trailing part from the host name and put it first in
3837 the path. And have it all prefixed with a slash.
3840 size_t hostlen = strlen(query);
3841 size_t pathlen = strlen(path);
3843 /* move the existing path plus the zero byte forward, to make room for
3844 the host-name part */
3845 memmove(path+hostlen+1, path, pathlen+1);
3847 /* now copy the trailing host part in front of the existing path */
3848 memcpy(path+1, query, hostlen);
3850 path[0]='/'; /* prepend the missing slash */
3853 *query=0; /* now cut off the hostname at the ? */
3856 /* if there's no path set, use a single slash */
3861 /* If the URL is malformatted (missing a '/' after hostname before path) we
3862 * insert a slash here. The only letter except '/' we accept to start a path
3865 if(path[0] == '?') {
3866 /* We need this function to deal with overlapping memory areas. We know
3867 that the memory area 'path' points to is 'urllen' bytes big and that
3868 is bigger than the path. Use +1 to move the zero byte too. */
3869 memmove(&path[1], path, strlen(path)+1);
3874 /* sanitise paths and remove ../ and ./ sequences according to RFC3986 */
3875 char *newp = Curl_dedotdotify(path);
3877 return CURLE_OUT_OF_MEMORY;
3879 if(strcmp(newp, path)) {
3881 free(data->state.pathbuffer);
3882 data->state.pathbuffer = newp;
3883 data->state.path = newp;
3891 * "rebuild_url" means that one or more URL components have been modified so
3892 * we need to generate an updated full version. We need the corrected URL
3893 * when communicating over HTTP proxy and we don't know at this point if
3894 * we're using a proxy or not.
3899 size_t plen = strlen(path); /* new path, should be 1 byte longer than
3901 size_t urllen = strlen(data->change.url); /* original URL length */
3903 size_t prefixlen = strlen(conn->host.name);
3906 prefixlen += strlen(protop) + strlen("://");
3908 reurl = malloc(urllen + 2); /* 2 for zerobyte + slash */
3910 return CURLE_OUT_OF_MEMORY;
3912 /* copy the prefix */
3913 memcpy(reurl, data->change.url, prefixlen);
3915 /* append the trailing piece + zerobyte */
3916 memcpy(&reurl[prefixlen], path, plen + 1);
3918 /* possible free the old one */
3919 if(data->change.url_alloc) {
3920 Curl_safefree(data->change.url);
3921 data->change.url_alloc = FALSE;
3924 infof(data, "Rebuilt URL to: %s\n", reurl);
3926 data->change.url = reurl;
3927 data->change.url_alloc = TRUE; /* free this later */
3931 * Parse the login details from the URL and strip them out of
3934 result = parse_url_login(data, conn, user, passwd, options);
3935 if(result != CURLE_OK)
3938 if(conn->host.name[0] == '[') {
3939 /* This looks like an IPv6 address literal. See if there is an address
3941 char *percent = strstr (conn->host.name, "%25");
3944 unsigned long scope = strtoul (percent + 3, &endp, 10);
3946 /* The address scope was well formed. Knock it out of the
3948 memmove(percent, endp, strlen(endp)+1);
3949 if(!data->state.this_is_a_follow)
3950 /* Don't honour a scope given in a Location: header */
3951 conn->scope = (unsigned int)scope;
3954 infof(data, "Invalid IPv6 address format\n");
3959 /* Override any scope that was set above. */
3960 conn->scope = data->set.scope;
3962 /* Remove the fragment part of the path. Per RFC 2396, this is always the
3963 last part of the URI. We are looking for the first '#' so that we deal
3964 gracefully with non conformant URI such as http://example.com#foo#bar. */
3965 fragment = strchr(path, '#');
3969 /* we know the path part ended with a fragment, so we know the full URL
3970 string does too and we need to cut it off from there so it isn't used
3972 fragment = strchr(data->change.url, '#');
3978 * So if the URL was A://B/C#D,
3980 * conn->host.name is B
3981 * data->state.path is /C
3984 return findprotocol(data, conn, protop);
3988 * If we're doing a resumed transfer, we need to setup our stuff
3991 static CURLcode setup_range(struct SessionHandle *data)
3993 struct UrlState *s = &data->state;
3994 s->resume_from = data->set.set_resume_from;
3995 if(s->resume_from || data->set.str[STRING_SET_RANGE]) {
3996 if(s->rangestringalloc)
4000 s->range = aprintf("%" FORMAT_OFF_TU "-", s->resume_from);
4002 s->range = strdup(data->set.str[STRING_SET_RANGE]);
4004 s->rangestringalloc = (s->range)?TRUE:FALSE;
4007 return CURLE_OUT_OF_MEMORY;
4009 /* tell ourselves to fetch this range */
4010 s->use_range = TRUE; /* enable range download */
4013 s->use_range = FALSE; /* disable range download */
4020 * setup_connection_internals() -
4022 * Setup connection internals specific to the requested protocol in the
4023 * SessionHandle. This is inited and setup before the connection is made but
4024 * is about the particular protocol that is to be used.
4026 * This MUST get called after proxy magic has been figured out.
4028 static CURLcode setup_connection_internals(struct connectdata *conn)
4030 const struct Curl_handler * p;
4033 /* in some case in the multi state-machine, we go back to the CONNECT state
4034 and then a second (or third or...) call to this function will be made
4035 without doing a DISCONNECT or DONE in between (since the connection is
4036 yet in place) and therefore this function needs to first make sure
4037 there's no lingering previous data allocated. */
4038 Curl_free_request_state(conn->data);
4040 memset(&conn->data->req, 0, sizeof(struct SingleRequest));
4041 conn->data->req.maxdownload = -1;
4043 conn->socktype = SOCK_STREAM; /* most of them are TCP streams */
4045 /* Perform setup complement if some. */
4048 if(p->setup_connection) {
4049 result = (*p->setup_connection)(conn);
4051 if(result != CURLE_OK)
4054 p = conn->handler; /* May have changed. */
4058 /* we check for -1 here since if proxy was detected already, this
4059 was very likely already set to the proxy port */
4060 conn->port = p->defport;
4062 /* only if remote_port was not already parsed off the URL we use the
4063 default port number */
4064 if(!conn->remote_port)
4065 conn->remote_port = (unsigned short)conn->given->defport;
4071 * Curl_free_request_state() should free temp data that was allocated in the
4072 * SessionHandle for this single request.
4075 void Curl_free_request_state(struct SessionHandle *data)
4077 Curl_safefree(data->req.protop);
4081 #ifndef CURL_DISABLE_PROXY
4082 /****************************************************************
4083 * Checks if the host is in the noproxy list. returns true if it matches
4084 * and therefore the proxy should NOT be used.
4085 ****************************************************************/
4086 static bool check_noproxy(const char* name, const char* no_proxy)
4088 /* no_proxy=domain1.dom,host.domain2.dom
4089 * (a comma-separated list of hosts which should
4090 * not be proxied, or an asterisk to override
4091 * all proxy variables)
4095 const char* separator = ", ";
4096 size_t no_proxy_len;
4100 if(no_proxy && no_proxy[0]) {
4101 if(Curl_raw_equal("*", no_proxy)) {
4105 /* NO_PROXY was specified and it wasn't just an asterisk */
4107 no_proxy_len = strlen(no_proxy);
4108 endptr = strchr(name, ':');
4110 namelen = endptr - name;
4112 namelen = strlen(name);
4114 for(tok_start = 0; tok_start < no_proxy_len; tok_start = tok_end + 1) {
4115 while(tok_start < no_proxy_len &&
4116 strchr(separator, no_proxy[tok_start]) != NULL) {
4117 /* Look for the beginning of the token. */
4121 if(tok_start == no_proxy_len)
4122 break; /* It was all trailing separator chars, no more tokens. */
4124 for(tok_end = tok_start; tok_end < no_proxy_len &&
4125 strchr(separator, no_proxy[tok_end]) == NULL; ++tok_end)
4126 /* Look for the end of the token. */
4129 /* To match previous behaviour, where it was necessary to specify
4130 * ".local.com" to prevent matching "notlocal.com", we will leave
4133 if(no_proxy[tok_start] == '.')
4136 if((tok_end - tok_start) <= namelen) {
4137 /* Match the last part of the name to the domain we are checking. */
4138 const char *checkn = name + namelen - (tok_end - tok_start);
4139 if(Curl_raw_nequal(no_proxy + tok_start, checkn,
4140 tok_end - tok_start)) {
4141 if((tok_end - tok_start) == namelen || *(checkn - 1) == '.') {
4142 /* We either have an exact match, or the previous character is a .
4143 * so it is within the same domain, so no proxy for this host.
4148 } /* if((tok_end - tok_start) <= namelen) */
4149 } /* for(tok_start = 0; tok_start < no_proxy_len;
4150 tok_start = tok_end + 1) */
4151 } /* NO_PROXY was specified and it wasn't just an asterisk */
4156 /****************************************************************
4157 * Detect what (if any) proxy to use. Remember that this selects a host
4158 * name and is not limited to HTTP proxies only.
4159 * The returned pointer must be freed by the caller (unless NULL)
4160 ****************************************************************/
4161 static char *detect_proxy(struct connectdata *conn)
4165 #ifndef CURL_DISABLE_HTTP
4166 /* If proxy was not specified, we check for default proxy environment
4167 * variables, to enable i.e Lynx compliance:
4169 * http_proxy=http://some.server.dom:port/
4170 * https_proxy=http://some.server.dom:port/
4171 * ftp_proxy=http://some.server.dom:port/
4172 * no_proxy=domain1.dom,host.domain2.dom
4173 * (a comma-separated list of hosts which should
4174 * not be proxied, or an asterisk to override
4175 * all proxy variables)
4176 * all_proxy=http://some.server.dom:port/
4177 * (seems to exist for the CERN www lib. Probably
4178 * the first to check for.)
4180 * For compatibility, the all-uppercase versions of these variables are
4181 * checked if the lowercase versions don't exist.
4183 char *no_proxy=NULL;
4184 char proxy_env[128];
4186 no_proxy=curl_getenv("no_proxy");
4188 no_proxy=curl_getenv("NO_PROXY");
4190 if(!check_noproxy(conn->host.name, no_proxy)) {
4191 /* It was not listed as without proxy */
4192 const char *protop = conn->handler->scheme;
4193 char *envp = proxy_env;
4196 /* Now, build <protocol>_proxy and check for such a one to use */
4198 *envp++ = (char)tolower((int)*protop++);
4201 strcpy(envp, "_proxy");
4203 /* read the protocol proxy: */
4204 prox=curl_getenv(proxy_env);
4207 * We don't try the uppercase version of HTTP_PROXY because of
4210 * When curl is used in a webserver application
4211 * environment (cgi or php), this environment variable can
4212 * be controlled by the web server user by setting the
4213 * http header 'Proxy:' to some value.
4215 * This can cause 'internal' http/ftp requests to be
4216 * arbitrarily redirected by any external attacker.
4218 if(!prox && !Curl_raw_equal("http_proxy", proxy_env)) {
4219 /* There was no lowercase variable, try the uppercase version: */
4220 Curl_strntoupper(proxy_env, proxy_env, sizeof(proxy_env));
4221 prox=curl_getenv(proxy_env);
4224 if(prox && *prox) { /* don't count "" strings */
4225 proxy = prox; /* use this */
4228 proxy = curl_getenv("all_proxy"); /* default proxy to use */
4230 proxy=curl_getenv("ALL_PROXY");
4232 } /* if(!check_noproxy(conn->host.name, no_proxy)) - it wasn't specified
4237 #else /* !CURL_DISABLE_HTTP */
4240 #endif /* CURL_DISABLE_HTTP */
4246 * If this is supposed to use a proxy, we need to figure out the proxy
4247 * host name, so that we can re-use an existing connection
4248 * that may exist registered to the same proxy host.
4249 * proxy will be freed before this function returns.
4251 static CURLcode parse_proxy(struct SessionHandle *data,
4252 struct connectdata *conn, char *proxy)
4257 /* We use 'proxyptr' to point to the proxy name from now on... */
4262 /* We do the proxy host string parsing here. We want the host name and the
4263 * port name. Accept a protocol:// prefix
4266 /* Parse the protocol part if present */
4267 endofprot = strstr(proxy, "://");
4269 proxyptr = endofprot+3;
4270 if(checkprefix("socks5h", proxy))
4271 conn->proxytype = CURLPROXY_SOCKS5_HOSTNAME;
4272 else if(checkprefix("socks5", proxy))
4273 conn->proxytype = CURLPROXY_SOCKS5;
4274 else if(checkprefix("socks4a", proxy))
4275 conn->proxytype = CURLPROXY_SOCKS4A;
4276 else if(checkprefix("socks4", proxy) || checkprefix("socks", proxy))
4277 conn->proxytype = CURLPROXY_SOCKS4;
4278 /* Any other xxx:// : change to http proxy */
4281 proxyptr = proxy; /* No xxx:// head: It's a HTTP proxy */
4283 /* Is there a username and password given in this proxy url? */
4284 atsign = strchr(proxyptr, '@');
4286 CURLcode res = CURLE_OK;
4287 char *proxyuser = NULL;
4288 char *proxypasswd = NULL;
4290 res = parse_login_details(proxyptr, atsign - proxyptr,
4291 &proxyuser, &proxypasswd, NULL);
4293 /* found user and password, rip them out. note that we are
4294 unescaping them, as there is otherwise no way to have a
4295 username or password with reserved characters like ':' in
4297 Curl_safefree(conn->proxyuser);
4298 if(proxyuser && strlen(proxyuser) < MAX_CURL_USER_LENGTH)
4299 conn->proxyuser = curl_easy_unescape(data, proxyuser, 0, NULL);
4301 conn->proxyuser = strdup("");
4303 if(!conn->proxyuser)
4304 res = CURLE_OUT_OF_MEMORY;
4306 Curl_safefree(conn->proxypasswd);
4307 if(proxypasswd && strlen(proxypasswd) < MAX_CURL_PASSWORD_LENGTH)
4308 conn->proxypasswd = curl_easy_unescape(data, proxypasswd, 0, NULL);
4310 conn->proxypasswd = strdup("");
4312 if(!conn->proxypasswd)
4313 res = CURLE_OUT_OF_MEMORY;
4317 conn->bits.proxy_user_passwd = TRUE; /* enable it */
4318 atsign++; /* the right side of the @-letter */
4321 proxyptr = atsign; /* now use this instead */
4323 res = CURLE_OUT_OF_MEMORY;
4327 Curl_safefree(proxyuser);
4328 Curl_safefree(proxypasswd);
4334 /* start scanning for port number at this point */
4337 /* detect and extract RFC2732-style IPv6-addresses */
4338 if(*proxyptr == '[') {
4339 char *ptr = ++proxyptr; /* advance beyond the initial bracket */
4340 while(*ptr && (ISXDIGIT(*ptr) || (*ptr == ':') || (*ptr == '%') ||
4344 /* yeps, it ended nicely with a bracket as well */
4347 infof(data, "Invalid IPv6 address format\n");
4349 /* Note that if this didn't end with a bracket, we still advanced the
4350 * proxyptr first, but I can't see anything wrong with that as no host
4351 * name nor a numeric can legally start with a bracket.
4355 /* Get port number off proxy.server.com:1080 */
4356 prox_portno = strchr(portptr, ':');
4358 *prox_portno = 0x0; /* cut off number from host name */
4360 /* now set the local port number */
4361 conn->port = strtol(prox_portno, NULL, 10);
4364 if(proxyptr[0]=='/')
4365 /* If the first character in the proxy string is a slash, fail
4366 immediately. The following code will otherwise clear the string which
4367 will lead to code running as if no proxy was set! */
4368 return CURLE_COULDNT_RESOLVE_PROXY;
4370 /* without a port number after the host name, some people seem to use
4371 a slash so we strip everything from the first slash */
4372 atsign = strchr(proxyptr, '/');
4374 *atsign = 0x0; /* cut off path part from host name */
4376 if(data->set.proxyport)
4377 /* None given in the proxy string, then get the default one if it is
4379 conn->port = data->set.proxyport;
4382 /* now, clone the cleaned proxy host name */
4383 conn->proxy.rawalloc = strdup(proxyptr);
4384 conn->proxy.name = conn->proxy.rawalloc;
4386 if(!conn->proxy.rawalloc)
4387 return CURLE_OUT_OF_MEMORY;
4393 * Extract the user and password from the authentication string
4395 static CURLcode parse_proxy_auth(struct SessionHandle *data,
4396 struct connectdata *conn)
4398 char proxyuser[MAX_CURL_USER_LENGTH]="";
4399 char proxypasswd[MAX_CURL_PASSWORD_LENGTH]="";
4401 if(data->set.str[STRING_PROXYUSERNAME] != NULL) {
4402 strncpy(proxyuser, data->set.str[STRING_PROXYUSERNAME],
4403 MAX_CURL_USER_LENGTH);
4404 proxyuser[MAX_CURL_USER_LENGTH-1] = '\0'; /*To be on safe side*/
4406 if(data->set.str[STRING_PROXYPASSWORD] != NULL) {
4407 strncpy(proxypasswd, data->set.str[STRING_PROXYPASSWORD],
4408 MAX_CURL_PASSWORD_LENGTH);
4409 proxypasswd[MAX_CURL_PASSWORD_LENGTH-1] = '\0'; /*To be on safe side*/
4412 conn->proxyuser = curl_easy_unescape(data, proxyuser, 0, NULL);
4413 if(!conn->proxyuser)
4414 return CURLE_OUT_OF_MEMORY;
4416 conn->proxypasswd = curl_easy_unescape(data, proxypasswd, 0, NULL);
4417 if(!conn->proxypasswd)
4418 return CURLE_OUT_OF_MEMORY;
4422 #endif /* CURL_DISABLE_PROXY */
4427 * Parse the login details (user name, password and options) from the URL and
4428 * strip them out of the host name
4430 * Inputs: data->set.use_netrc (CURLOPT_NETRC)
4433 * Outputs: (almost :- all currently undefined)
4434 * conn->bits.user_passwd - non-zero if non-default passwords exist
4435 * user - non-zero length if defined
4436 * passwd - non-zero length if defined
4437 * options - non-zero length if defined
4438 * conn->host.name - remove user name and password
4440 static CURLcode parse_url_login(struct SessionHandle *data,
4441 struct connectdata *conn,
4442 char *user, char *passwd, char *options)
4444 CURLcode result = CURLE_OK;
4446 char *passwdp = NULL;
4447 char *optionsp = NULL;
4449 /* At this point, we're hoping all the other special cases have
4450 * been taken care of, so conn->host.name is at most
4451 * [user[:password][;options]]@]hostname
4453 * We need somewhere to put the embedded details, so do that first.
4456 char *ptr = strchr(conn->host.name, '@');
4457 char *login = conn->host.name;
4459 user[0] = 0; /* to make everything well-defined */
4463 /* We will now try to extract the
4464 * possible login information in a string like:
4465 * ftp://user:password@ftp.my.site:8021/README */
4467 /* There's login information to the left of the @ */
4469 conn->host.name = ++ptr;
4471 /* So the hostname is sane. Only bother interpreting the
4472 * results if we could care. It could still be wasted
4473 * work because it might be overtaken by the programmatically
4474 * set user/passwd, but doing that first adds more cases here :-(
4477 if(data->set.use_netrc != CURL_NETRC_REQUIRED) {
4478 /* We could use the login information in the URL so extract it */
4479 result = parse_login_details(login, ptr - login - 1,
4480 &userp, &passwdp, &optionsp);
4485 /* We have a user in the URL */
4486 conn->bits.userpwd_in_url = TRUE;
4487 conn->bits.user_passwd = TRUE; /* enable user+password */
4489 /* Decode the user */
4490 newname = curl_easy_unescape(data, userp, 0, NULL);
4492 Curl_safefree(userp);
4493 Curl_safefree(passwdp);
4494 Curl_safefree(optionsp);
4495 return CURLE_OUT_OF_MEMORY;
4498 if(strlen(newname) < MAX_CURL_USER_LENGTH)
4499 strcpy(user, newname);
4505 /* We have a password in the URL so decode it */
4506 char *newpasswd = curl_easy_unescape(data, passwdp, 0, NULL);
4508 Curl_safefree(userp);
4509 Curl_safefree(passwdp);
4510 Curl_safefree(optionsp);
4511 return CURLE_OUT_OF_MEMORY;
4514 if(strlen(newpasswd) < MAX_CURL_PASSWORD_LENGTH)
4515 strcpy(passwd, newpasswd);
4521 /* We have an options list in the URL so decode it */
4522 char *newoptions = curl_easy_unescape(data, optionsp, 0, NULL);
4524 Curl_safefree(userp);
4525 Curl_safefree(passwdp);
4526 Curl_safefree(optionsp);
4527 return CURLE_OUT_OF_MEMORY;
4530 if(strlen(newoptions) < MAX_CURL_OPTIONS_LENGTH)
4531 strcpy(options, newoptions);
4537 Curl_safefree(userp);
4538 Curl_safefree(passwdp);
4539 Curl_safefree(optionsp);
4547 * parse_login_details()
4549 * This is used to parse a login string for user name, password and options in
4550 * the following formats:
4554 * user:password;options
4556 * user;options:password
4564 * login [in] - The login string.
4565 * len [in] - The length of the login string.
4566 * userp [in/out] - The address where a pointer to newly allocated memory
4567 * holding the user will be stored upon completion.
4568 * passdwp [in/out] - The address where a pointer to newly allocated memory
4569 * holding the password will be stored upon completion.
4570 * optionsp [in/out] - The address where a pointer to newly allocated memory
4571 * holding the options will be stored upon completion.
4573 * Returns CURLE_OK on success.
4575 static CURLcode parse_login_details(const char *login, const size_t len,
4576 char **userp, char **passwdp,
4579 CURLcode result = CURLE_OK;
4583 const char *psep = NULL;
4584 const char *osep = NULL;
4589 /* Attempt to find the password separator */
4591 psep = strchr(login, ':');
4593 /* Within the constraint of the login string */
4594 if(psep >= login + len)
4598 /* Attempt to find the options separator */
4600 osep = strchr(login, ';');
4602 /* Within the constraint of the login string */
4603 if(osep >= login + len)
4607 /* Calculate the portion lengths */
4609 (size_t)(osep && psep > osep ? osep - login : psep - login) :
4610 (osep ? (size_t)(osep - login) : len));
4612 (osep && osep > psep ? (size_t)(osep - psep) :
4613 (size_t)(login + len - psep)) - 1 : 0);
4615 (psep && psep > osep ? (size_t)(psep - osep) :
4616 (size_t)(login + len - osep)) - 1 : 0);
4618 /* Allocate the user portion buffer */
4620 ubuf = malloc(ulen + 1);
4622 result = CURLE_OUT_OF_MEMORY;
4625 /* Allocate the password portion buffer */
4626 if(!result && passwdp && plen) {
4627 pbuf = malloc(plen + 1);
4629 Curl_safefree(ubuf);
4630 result = CURLE_OUT_OF_MEMORY;
4634 /* Allocate the options portion buffer */
4635 if(!result && optionsp && olen) {
4636 obuf = malloc(olen + 1);
4638 Curl_safefree(pbuf);
4639 Curl_safefree(ubuf);
4640 result = CURLE_OUT_OF_MEMORY;
4645 /* Store the user portion if necessary */
4647 memcpy(ubuf, login, ulen);
4649 Curl_safefree(*userp);
4653 /* Store the password portion if necessary */
4655 memcpy(pbuf, psep + 1, plen);
4657 Curl_safefree(*passwdp);
4661 /* Store the options portion if necessary */
4663 memcpy(obuf, osep + 1, olen);
4665 Curl_safefree(*optionsp);
4673 /*************************************************************
4674 * Figure out the remote port number and fix it in the URL
4676 * No matter if we use a proxy or not, we have to figure out the remote
4677 * port number of various reasons.
4679 * To be able to detect port number flawlessly, we must not confuse them
4680 * IPv6-specified addresses in the [0::1] style. (RFC2732)
4682 * The conn->host.name is currently [user:passwd@]host[:port] where host
4683 * could be a hostname, IPv4 address or IPv6 address.
4685 * The port number embedded in the URL is replaced, if necessary.
4686 *************************************************************/
4687 static CURLcode parse_remote_port(struct SessionHandle *data,
4688 struct connectdata *conn)
4693 /* Note that at this point, the IPv6 address cannot contain any scope
4694 suffix as that has already been removed in the parseurlandfillconn()
4696 if((1 == sscanf(conn->host.name, "[%*45[0123456789abcdefABCDEF:.]%c",
4698 (']' == endbracket)) {
4699 /* this is a RFC2732-style specified IP-address */
4700 conn->bits.ipv6_ip = TRUE;
4702 conn->host.name++; /* skip over the starting bracket */
4703 portptr = strchr(conn->host.name, ']');
4705 *portptr++ = '\0'; /* zero terminate, killing the bracket */
4707 portptr = NULL; /* no port number available */
4712 struct in6_addr in6;
4713 if(Curl_inet_pton(AF_INET6, conn->host.name, &in6) > 0) {
4714 /* This is a numerical IPv6 address, meaning this is a wrongly formatted
4716 failf(data, "IPv6 numerical address used in URL without brackets");
4717 return CURLE_URL_MALFORMAT;
4721 portptr = strrchr(conn->host.name, ':');
4724 if(data->set.use_port && data->state.allow_port) {
4725 /* if set, we use this and ignore the port possibly given in the URL */
4726 conn->remote_port = (unsigned short)data->set.use_port;
4728 *portptr = '\0'; /* cut off the name there anyway - if there was a port
4729 number - since the port number is to be ignored! */
4730 if(conn->bits.httpproxy) {
4731 /* we need to create new URL with the new port number */
4735 if(conn->bits.type_set)
4736 snprintf(type, sizeof(type), ";type=%c",
4737 data->set.prefer_ascii?'A':
4738 (data->set.ftp_list_only?'D':'I'));
4741 * This synthesized URL isn't always right--suffixes like ;type=A are
4742 * stripped off. It would be better to work directly from the original
4743 * URL and simply replace the port part of it.
4745 url = aprintf("%s://%s%s%s:%hu%s%s%s", conn->given->scheme,
4746 conn->bits.ipv6_ip?"[":"", conn->host.name,
4747 conn->bits.ipv6_ip?"]":"", conn->remote_port,
4748 data->state.slash_removed?"/":"", data->state.path,
4751 return CURLE_OUT_OF_MEMORY;
4753 if(data->change.url_alloc) {
4754 Curl_safefree(data->change.url);
4755 data->change.url_alloc = FALSE;
4758 data->change.url = url;
4759 data->change.url_alloc = TRUE;
4763 /* no CURLOPT_PORT given, extract the one from the URL */
4768 port=strtoul(portptr+1, &rest, 10); /* Port number must be decimal */
4770 if(rest != (portptr+1) && *rest == '\0') {
4771 /* The colon really did have only digits after it,
4772 * so it is either a port number or a mistake */
4774 if(port > 0xffff) { /* Single unix standard says port numbers are
4776 failf(data, "Port number too large: %lu", port);
4777 return CURLE_URL_MALFORMAT;
4780 *portptr = '\0'; /* cut off the name there */
4781 conn->remote_port = curlx_ultous(port);
4784 /* Browser behavior adaptation. If there's a colon with no digits after,
4785 just cut off the name there which makes us ignore the colon and just
4786 use the default port. Firefox and Chrome both do that. */
4793 * Override the login details from the URL with that in the CURLOPT_USERPWD
4794 * option or a .netrc file, if applicable.
4796 static void override_login(struct SessionHandle *data,
4797 struct connectdata *conn,
4798 char *user, char *passwd, char *options)
4800 if(data->set.str[STRING_USERNAME]) {
4801 strncpy(user, data->set.str[STRING_USERNAME], MAX_CURL_USER_LENGTH);
4802 user[MAX_CURL_USER_LENGTH - 1] = '\0'; /* To be on safe side */
4805 if(data->set.str[STRING_PASSWORD]) {
4806 strncpy(passwd, data->set.str[STRING_PASSWORD], MAX_CURL_PASSWORD_LENGTH);
4807 passwd[MAX_CURL_PASSWORD_LENGTH - 1] = '\0'; /* To be on safe side */
4810 if(data->set.str[STRING_OPTIONS]) {
4811 strncpy(options, data->set.str[STRING_OPTIONS], MAX_CURL_OPTIONS_LENGTH);
4812 options[MAX_CURL_OPTIONS_LENGTH - 1] = '\0'; /* To be on safe side */
4815 conn->bits.netrc = FALSE;
4816 if(data->set.use_netrc != CURL_NETRC_IGNORED) {
4817 if(Curl_parsenetrc(conn->host.name,
4819 data->set.str[STRING_NETRC_FILE])) {
4820 infof(data, "Couldn't find host %s in the "
4821 DOT_CHAR "netrc file; using defaults\n",
4825 /* set bits.netrc TRUE to remember that we got the name from a .netrc
4826 file, so that it is safe to use even if we followed a Location: to a
4827 different host or similar. */
4828 conn->bits.netrc = TRUE;
4830 conn->bits.user_passwd = TRUE; /* enable user+password */
4836 * Set password so it's available in the connection.
4838 static CURLcode set_login(struct connectdata *conn,
4839 const char *user, const char *passwd,
4840 const char *options)
4842 CURLcode result = CURLE_OK;
4844 /* If our protocol needs a password and we have none, use the defaults */
4845 if((conn->handler->flags & PROTOPT_NEEDSPWD) && !conn->bits.user_passwd) {
4846 /* Store the default user */
4847 conn->user = strdup(CURL_DEFAULT_USER);
4849 /* Store the default password */
4851 conn->passwd = strdup(CURL_DEFAULT_PASSWORD);
4853 conn->passwd = NULL;
4855 /* This is the default password, so DON'T set conn->bits.user_passwd */
4858 /* Store the user, zero-length if not set */
4859 conn->user = strdup(user);
4861 /* Store the password (only if user is present), zero-length if not set */
4863 conn->passwd = strdup(passwd);
4865 conn->passwd = NULL;
4868 if(!conn->user || !conn->passwd)
4869 result = CURLE_OUT_OF_MEMORY;
4871 /* Store the options, null if not set */
4872 if(!result && options[0]) {
4873 conn->options = strdup(options);
4876 result = CURLE_OUT_OF_MEMORY;
4882 /*************************************************************
4883 * Resolve the address of the server or proxy
4884 *************************************************************/
4885 static CURLcode resolve_server(struct SessionHandle *data,
4886 struct connectdata *conn,
4889 CURLcode result=CURLE_OK;
4890 long timeout_ms = Curl_timeleft(data, NULL, TRUE);
4892 /*************************************************************
4893 * Resolve the name of the server or proxy
4894 *************************************************************/
4895 if(conn->bits.reuse)
4896 /* We're reusing the connection - no need to resolve anything, and
4897 fix_hostname() was called already in create_conn() for the re-use
4902 /* this is a fresh connect */
4904 struct Curl_dns_entry *hostaddr;
4906 /* set a pointer to the hostname we display */
4907 fix_hostname(data, conn, &conn->host);
4909 if(!conn->proxy.name || !*conn->proxy.name) {
4910 /* If not connecting via a proxy, extract the port from the URL, if it is
4911 * there, thus overriding any defaults that might have been set above. */
4912 conn->port = conn->remote_port; /* it is the same port */
4914 /* Resolve target host right on */
4915 rc = Curl_resolv_timeout(conn, conn->host.name, (int)conn->port,
4916 &hostaddr, timeout_ms);
4917 if(rc == CURLRESOLV_PENDING)
4920 else if(rc == CURLRESOLV_TIMEDOUT)
4921 result = CURLE_OPERATION_TIMEDOUT;
4923 else if(!hostaddr) {
4924 failf(data, "Couldn't resolve host '%s'", conn->host.dispname);
4925 result = CURLE_COULDNT_RESOLVE_HOST;
4926 /* don't return yet, we need to clean up the timeout first */
4930 /* This is a proxy that hasn't been resolved yet. */
4932 /* IDN-fix the proxy name */
4933 fix_hostname(data, conn, &conn->proxy);
4936 rc = Curl_resolv_timeout(conn, conn->proxy.name, (int)conn->port,
4937 &hostaddr, timeout_ms);
4939 if(rc == CURLRESOLV_PENDING)
4942 else if(rc == CURLRESOLV_TIMEDOUT)
4943 result = CURLE_OPERATION_TIMEDOUT;
4945 else if(!hostaddr) {
4946 failf(data, "Couldn't resolve proxy '%s'", conn->proxy.dispname);
4947 result = CURLE_COULDNT_RESOLVE_PROXY;
4948 /* don't return yet, we need to clean up the timeout first */
4951 DEBUGASSERT(conn->dns_entry == NULL);
4952 conn->dns_entry = hostaddr;
4959 * Cleanup the connection just allocated before we can move along and use the
4960 * previously existing one. All relevant data is copied over and old_conn is
4961 * ready for freeing once this function returns.
4963 static void reuse_conn(struct connectdata *old_conn,
4964 struct connectdata *conn)
4966 if(old_conn->proxy.rawalloc)
4967 free(old_conn->proxy.rawalloc);
4969 /* free the SSL config struct from this connection struct as this was
4970 allocated in vain and is targeted for destruction */
4971 Curl_free_ssl_config(&old_conn->ssl_config);
4973 conn->data = old_conn->data;
4975 /* get the user+password information from the old_conn struct since it may
4976 * be new for this request even when we re-use an existing connection */
4977 conn->bits.user_passwd = old_conn->bits.user_passwd;
4978 if(conn->bits.user_passwd) {
4979 /* use the new user name and password though */
4980 Curl_safefree(conn->user);
4981 Curl_safefree(conn->passwd);
4982 conn->user = old_conn->user;
4983 conn->passwd = old_conn->passwd;
4984 old_conn->user = NULL;
4985 old_conn->passwd = NULL;
4988 conn->bits.proxy_user_passwd = old_conn->bits.proxy_user_passwd;
4989 if(conn->bits.proxy_user_passwd) {
4990 /* use the new proxy user name and proxy password though */
4991 Curl_safefree(conn->proxyuser);
4992 Curl_safefree(conn->proxypasswd);
4993 conn->proxyuser = old_conn->proxyuser;
4994 conn->proxypasswd = old_conn->proxypasswd;
4995 old_conn->proxyuser = NULL;
4996 old_conn->proxypasswd = NULL;
4999 /* host can change, when doing keepalive with a proxy or if the case is
5000 different this time etc */
5001 Curl_safefree(conn->host.rawalloc);
5002 conn->host=old_conn->host;
5004 /* persist connection info in session handle */
5005 Curl_persistconninfo(conn);
5008 conn->bits.reuse = TRUE; /* yes, we're re-using here */
5010 Curl_safefree(old_conn->user);
5011 Curl_safefree(old_conn->passwd);
5012 Curl_safefree(old_conn->proxyuser);
5013 Curl_safefree(old_conn->proxypasswd);
5014 Curl_safefree(old_conn->localdev);
5016 Curl_llist_destroy(old_conn->send_pipe, NULL);
5017 Curl_llist_destroy(old_conn->recv_pipe, NULL);
5019 old_conn->send_pipe = NULL;
5020 old_conn->recv_pipe = NULL;
5022 Curl_safefree(old_conn->master_buffer);
5026 * create_conn() sets up a new connectdata struct, or re-uses an already
5027 * existing one, and resolves host name.
5029 * if this function returns CURLE_OK and *async is set to TRUE, the resolve
5030 * response will be coming asynchronously. If *async is FALSE, the name is
5033 * @param data The sessionhandle pointer
5034 * @param in_connect is set to the next connection data pointer
5035 * @param async is set TRUE when an async DNS resolution is pending
5036 * @see Curl_setup_conn()
5038 * *NOTE* this function assigns the conn->data pointer!
5041 static CURLcode create_conn(struct SessionHandle *data,
5042 struct connectdata **in_connect,
5045 CURLcode result = CURLE_OK;
5046 struct connectdata *conn;
5047 struct connectdata *conn_temp = NULL;
5049 char user[MAX_CURL_USER_LENGTH];
5050 char passwd[MAX_CURL_PASSWORD_LENGTH];
5051 char options[MAX_CURL_OPTIONS_LENGTH];
5054 bool prot_missing = FALSE;
5055 bool no_connections_available = FALSE;
5057 size_t max_host_connections = Curl_multi_max_host_connections(data->multi);
5058 size_t max_total_connections = Curl_multi_max_total_connections(data->multi);
5062 /*************************************************************
5064 *************************************************************/
5066 if(!data->change.url)
5067 return CURLE_URL_MALFORMAT;
5069 /* First, split up the current URL in parts so that we can use the
5070 parts for checking against the already present connections. In order
5071 to not have to modify everything at once, we allocate a temporary
5072 connection data struct and fill in for comparison purposes. */
5073 conn = allocate_conn(data);
5076 return CURLE_OUT_OF_MEMORY;
5078 /* We must set the return variable as soon as possible, so that our
5079 parent can cleanup any possible allocs we may have done before
5083 /* This initing continues below, see the comment "Continue connectdata
5084 * initialization here" */
5086 /***********************************************************
5087 * We need to allocate memory to store the path in. We get the size of the
5088 * full URL to be sure, and we need to make it at least 256 bytes since
5089 * other parts of the code will rely on this fact
5090 ***********************************************************/
5091 #define LEAST_PATH_ALLOC 256
5092 urllen=strlen(data->change.url);
5093 if(urllen < LEAST_PATH_ALLOC)
5094 urllen=LEAST_PATH_ALLOC;
5097 * We malloc() the buffers below urllen+2 to make room for 2 possibilities:
5098 * 1 - an extra terminating zero
5099 * 2 - an extra slash (in case a syntax like "www.host.com?moo" is used)
5102 Curl_safefree(data->state.pathbuffer);
5103 data->state.path = NULL;
5105 data->state.pathbuffer = malloc(urllen+2);
5106 if(NULL == data->state.pathbuffer)
5107 return CURLE_OUT_OF_MEMORY; /* really bad error */
5108 data->state.path = data->state.pathbuffer;
5110 conn->host.rawalloc = malloc(urllen+2);
5111 if(NULL == conn->host.rawalloc) {
5112 Curl_safefree(data->state.pathbuffer);
5113 data->state.path = NULL;
5114 return CURLE_OUT_OF_MEMORY;
5117 conn->host.name = conn->host.rawalloc;
5118 conn->host.name[0] = 0;
5120 result = parseurlandfillconn(data, conn, &prot_missing, user, passwd,
5122 if(result != CURLE_OK)
5125 /*************************************************************
5126 * No protocol part in URL was used, add it!
5127 *************************************************************/
5129 /* We're guessing prefixes here and if we're told to use a proxy or if
5130 we're gonna follow a Location: later or... then we need the protocol
5131 part added so that we have a valid URL. */
5134 reurl = aprintf("%s://%s", conn->handler->scheme, data->change.url);
5137 Curl_safefree(proxy);
5138 return CURLE_OUT_OF_MEMORY;
5141 if(data->change.url_alloc) {
5142 Curl_safefree(data->change.url);
5143 data->change.url_alloc = FALSE;
5146 data->change.url = reurl;
5147 data->change.url_alloc = TRUE; /* free this later */
5150 /*************************************************************
5151 * If the protocol can't handle url query strings, then cut
5152 * of the unhandable part
5153 *************************************************************/
5154 if((conn->given->flags&PROTOPT_NOURLQUERY)) {
5155 char *path_q_sep = strchr(conn->data->state.path, '?');
5157 /* according to rfc3986, allow the query (?foo=bar)
5158 also on protocols that can't handle it.
5160 cut the string-part after '?'
5163 /* terminate the string */
5168 #ifndef CURL_DISABLE_PROXY
5169 /*************************************************************
5170 * Extract the user and password from the authentication string
5171 *************************************************************/
5172 if(conn->bits.proxy_user_passwd) {
5173 result = parse_proxy_auth(data, conn);
5174 if(result != CURLE_OK)
5178 /*************************************************************
5179 * Detect what (if any) proxy to use
5180 *************************************************************/
5181 if(data->set.str[STRING_PROXY]) {
5182 proxy = strdup(data->set.str[STRING_PROXY]);
5183 /* if global proxy is set, this is it */
5185 failf(data, "memory shortage");
5186 return CURLE_OUT_OF_MEMORY;
5190 if(data->set.str[STRING_NOPROXY] &&
5191 check_noproxy(conn->host.name, data->set.str[STRING_NOPROXY])) {
5193 free(proxy); /* proxy is in exception list */
5198 proxy = detect_proxy(conn);
5200 if(proxy && (!*proxy || (conn->handler->flags & PROTOPT_NONETWORK))) {
5201 free(proxy); /* Don't bother with an empty proxy string or if the
5202 protocol doesn't work with network */
5206 /***********************************************************************
5207 * If this is supposed to use a proxy, we need to figure out the proxy host
5208 * name, proxy type and port number, so that we can re-use an existing
5209 * connection that may exist registered to the same proxy host.
5210 ***********************************************************************/
5212 result = parse_proxy(data, conn, proxy);
5214 free(proxy); /* parse_proxy copies the proxy string */
5219 if((conn->proxytype == CURLPROXY_HTTP) ||
5220 (conn->proxytype == CURLPROXY_HTTP_1_0)) {
5221 #ifdef CURL_DISABLE_HTTP
5222 /* asking for a HTTP proxy is a bit funny when HTTP is disabled... */
5223 return CURLE_UNSUPPORTED_PROTOCOL;
5225 /* force this connection's protocol to become HTTP if not already
5226 compatible - if it isn't tunneling through */
5227 if(!(conn->handler->protocol & CURLPROTO_HTTP) &&
5228 !conn->bits.tunnel_proxy)
5229 conn->handler = &Curl_handler_http;
5231 conn->bits.httpproxy = TRUE;
5235 conn->bits.httpproxy = FALSE; /* not a HTTP proxy */
5236 conn->bits.proxy = TRUE;
5239 /* we aren't using the proxy after all... */
5240 conn->bits.proxy = FALSE;
5241 conn->bits.httpproxy = FALSE;
5242 conn->bits.proxy_user_passwd = FALSE;
5243 conn->bits.tunnel_proxy = FALSE;
5246 #endif /* CURL_DISABLE_PROXY */
5248 /*************************************************************
5249 * If the protocol is using SSL and HTTP proxy is used, we set
5250 * the tunnel_proxy bit.
5251 *************************************************************/
5252 if((conn->given->flags&PROTOPT_SSL) && conn->bits.httpproxy)
5253 conn->bits.tunnel_proxy = TRUE;
5255 /*************************************************************
5256 * Figure out the remote port number and fix it in the URL
5257 *************************************************************/
5258 result = parse_remote_port(data, conn);
5259 if(result != CURLE_OK)
5262 /* Check for overridden login details and set them accordingly so they
5263 they are known when protocol->setup_connection is called! */
5264 override_login(data, conn, user, passwd, options);
5265 result = set_login(conn, user, passwd, options);
5266 if(result != CURLE_OK)
5269 /*************************************************************
5270 * Setup internals depending on protocol. Needs to be done after
5271 * we figured out what/if proxy to use.
5272 *************************************************************/
5273 result = setup_connection_internals(conn);
5274 if(result != CURLE_OK) {
5275 Curl_safefree(proxy);
5279 conn->recv[FIRSTSOCKET] = Curl_recv_plain;
5280 conn->send[FIRSTSOCKET] = Curl_send_plain;
5281 conn->recv[SECONDARYSOCKET] = Curl_recv_plain;
5282 conn->send[SECONDARYSOCKET] = Curl_send_plain;
5284 /***********************************************************************
5285 * file: is a special case in that it doesn't need a network connection
5286 ***********************************************************************/
5287 #ifndef CURL_DISABLE_FILE
5288 if(conn->handler->flags & PROTOPT_NONETWORK) {
5290 /* this is supposed to be the connect function so we better at least check
5291 that the file is present here! */
5292 DEBUGASSERT(conn->handler->connect_it);
5293 result = conn->handler->connect_it(conn, &done);
5295 /* Setup a "faked" transfer that'll do nothing */
5296 if(CURLE_OK == result) {
5298 conn->bits.tcpconnect[FIRSTSOCKET] = TRUE; /* we are "connected */
5300 ConnectionStore(data, conn);
5303 * Setup whatever necessary for a resumed transfer
5305 result = setup_range(data);
5307 DEBUGASSERT(conn->handler->done);
5308 /* we ignore the return code for the protocol-specific DONE */
5309 (void)conn->handler->done(conn, result, FALSE);
5313 Curl_setup_transfer(conn, -1, -1, FALSE, NULL, /* no download */
5314 -1, NULL); /* no upload */
5317 /* since we skip do_init() */
5324 /* Get a cloned copy of the SSL config situation stored in the
5325 connection struct. But to get this going nicely, we must first make
5326 sure that the strings in the master copy are pointing to the correct
5327 strings in the session handle strings array!
5329 Keep in mind that the pointers in the master copy are pointing to strings
5330 that will be freed as part of the SessionHandle struct, but all cloned
5331 copies will be separately allocated.
5333 data->set.ssl.CApath = data->set.str[STRING_SSL_CAPATH];
5334 data->set.ssl.CAfile = data->set.str[STRING_SSL_CAFILE];
5335 data->set.ssl.CRLfile = data->set.str[STRING_SSL_CRLFILE];
5336 data->set.ssl.issuercert = data->set.str[STRING_SSL_ISSUERCERT];
5337 data->set.ssl.random_file = data->set.str[STRING_SSL_RANDOM_FILE];
5338 data->set.ssl.egdsocket = data->set.str[STRING_SSL_EGDSOCKET];
5339 data->set.ssl.cipher_list = data->set.str[STRING_SSL_CIPHER_LIST];
5341 data->set.ssl.username = data->set.str[STRING_TLSAUTH_USERNAME];
5342 data->set.ssl.password = data->set.str[STRING_TLSAUTH_PASSWORD];
5345 if(!Curl_clone_ssl_config(&data->set.ssl, &conn->ssl_config))
5346 return CURLE_OUT_OF_MEMORY;
5348 /*************************************************************
5349 * Check the current list of connections to see if we can
5350 * re-use an already existing one or if we have to create a
5352 *************************************************************/
5354 /* reuse_fresh is TRUE if we are told to use a new connection by force, but
5355 we only acknowledge this option if this is not a re-used connection
5356 already (which happens due to follow-location or during a HTTP
5357 authentication phase). */
5358 if(data->set.reuse_fresh && !data->state.this_is_a_follow)
5361 reuse = ConnectionExists(data, conn, &conn_temp, &force_reuse);
5363 /* If we found a reusable connection, we may still want to
5364 open a new connection if we are pipelining. */
5365 if(reuse && !force_reuse && IsPipeliningPossible(data, conn_temp)) {
5366 size_t pipelen = conn_temp->send_pipe->size + conn_temp->recv_pipe->size;
5368 infof(data, "Found connection %ld, with requests in the pipe (%zu)\n",
5369 conn_temp->connection_id, pipelen);
5371 if(conn_temp->bundle->num_connections < max_host_connections &&
5372 data->state.conn_cache->num_connections < max_total_connections) {
5373 /* We want a new connection anyway */
5376 infof(data, "We can reuse, but we want a new connection anyway\n");
5383 * We already have a connection for this, we got the former connection
5384 * in the conn_temp variable and thus we need to cleanup the one we
5385 * just allocated before we can move along and use the previously
5388 conn_temp->inuse = TRUE; /* mark this as being in use so that no other
5389 handle in a multi stack may nick it */
5390 reuse_conn(conn, conn_temp);
5391 free(conn); /* we don't need this anymore */
5395 /* set a pointer to the hostname we display */
5396 fix_hostname(data, conn, &conn->host);
5398 infof(data, "Re-using existing connection! (#%ld) with host %s\n",
5399 conn->connection_id,
5400 conn->proxy.name?conn->proxy.dispname:conn->host.dispname);
5403 /* We have decided that we want a new connection. However, we may not
5404 be able to do that if we have reached the limit of how many
5405 connections we are allowed to open. */
5406 struct connectbundle *bundle;
5408 bundle = Curl_conncache_find_bundle(data->state.conn_cache,
5410 if(max_host_connections > 0 && bundle &&
5411 (bundle->num_connections >= max_host_connections)) {
5412 struct connectdata *conn_candidate;
5414 /* The bundle is full. Let's see if we can kill a connection. */
5415 conn_candidate = find_oldest_idle_connection_in_bundle(data, bundle);
5417 if(conn_candidate) {
5418 /* Set the connection's owner correctly, then kill it */
5419 conn_candidate->data = data;
5420 (void)Curl_disconnect(conn_candidate, /* dead_connection */ FALSE);
5423 no_connections_available = TRUE;
5426 if(max_total_connections > 0 &&
5427 (data->state.conn_cache->num_connections >= max_total_connections)) {
5428 struct connectdata *conn_candidate;
5430 /* The cache is full. Let's see if we can kill a connection. */
5431 conn_candidate = find_oldest_idle_connection(data);
5433 if(conn_candidate) {
5434 /* Set the connection's owner correctly, then kill it */
5435 conn_candidate->data = data;
5436 (void)Curl_disconnect(conn_candidate, /* dead_connection */ FALSE);
5439 no_connections_available = TRUE;
5443 if(no_connections_available) {
5444 infof(data, "No connections available.\n");
5449 return CURLE_NO_CONNECTION_AVAILABLE;
5453 * This is a brand new connection, so let's store it in the connection
5456 ConnectionStore(data, conn);
5460 /* Mark the connection as used */
5463 /* Setup and init stuff before DO starts, in preparing for the transfer. */
5467 * Setup whatever necessary for a resumed transfer
5469 result = setup_range(data);
5473 /* Continue connectdata initialization here. */
5476 * Inherit the proper values from the urldata struct AFTER we have arranged
5477 * the persistent connection stuff
5479 conn->fread_func = data->set.fread_func;
5480 conn->fread_in = data->set.in;
5481 conn->seek_func = data->set.seek_func;
5482 conn->seek_client = data->set.seek_client;
5484 /*************************************************************
5485 * Resolve the address of the server or proxy
5486 *************************************************************/
5487 result = resolve_server(data, conn, async);
5492 /* Curl_setup_conn() is called after the name resolve initiated in
5493 * create_conn() is all done.
5495 * Curl_setup_conn() also handles reused connections
5497 * conn->data MUST already have been setup fine (in create_conn)
5500 CURLcode Curl_setup_conn(struct connectdata *conn,
5501 bool *protocol_done)
5503 CURLcode result = CURLE_OK;
5504 struct SessionHandle *data = conn->data;
5506 Curl_pgrsTime(data, TIMER_NAMELOOKUP);
5508 if(conn->handler->flags & PROTOPT_NONETWORK) {
5509 /* nothing to setup when not using a network */
5510 *protocol_done = TRUE;
5513 *protocol_done = FALSE; /* default to not done */
5515 /* set proxy_connect_closed to false unconditionally already here since it
5516 is used strictly to provide extra information to a parent function in the
5517 case of proxy CONNECT failures and we must make sure we don't have it
5518 lingering set from a previous invoke */
5519 conn->bits.proxy_connect_closed = FALSE;
5522 * Set user-agent. Used for HTTP, but since we can attempt to tunnel
5523 * basically anything through a http proxy we can't limit this based on
5526 if(data->set.str[STRING_USERAGENT]) {
5527 Curl_safefree(conn->allocptr.uagent);
5528 conn->allocptr.uagent =
5529 aprintf("User-Agent: %s\r\n", data->set.str[STRING_USERAGENT]);
5530 if(!conn->allocptr.uagent)
5531 return CURLE_OUT_OF_MEMORY;
5534 data->req.headerbytecount = 0;
5536 #ifdef CURL_DO_LINEEND_CONV
5537 data->state.crlf_conversions = 0; /* reset CRLF conversion counter */
5538 #endif /* CURL_DO_LINEEND_CONV */
5540 /* set start time here for timeout purposes in the connect procedure, it
5541 is later set again for the progress meter purpose */
5542 conn->now = Curl_tvnow();
5545 /* loop for CURL_SERVER_CLOSED_CONNECTION */
5547 if(CURL_SOCKET_BAD == conn->sock[FIRSTSOCKET]) {
5548 /* Try to connect only if not already connected */
5549 bool connected = FALSE;
5551 result = ConnectPlease(data, conn, &connected);
5553 if(result && !conn->ip_addr) {
5554 /* transport connection failure not related with authentication */
5555 conn->bits.tcpconnect[FIRSTSOCKET] = FALSE;
5560 result = Curl_protocol_connect(conn, protocol_done);
5561 if(CURLE_OK == result)
5562 conn->bits.tcpconnect[FIRSTSOCKET] = TRUE;
5565 conn->bits.tcpconnect[FIRSTSOCKET] = FALSE;
5567 /* if the connection was closed by the server while exchanging
5568 authentication informations, retry with the new set
5569 authentication information */
5570 if(conn->bits.proxy_connect_closed) {
5571 /* reset the error buffer */
5572 if(data->set.errorbuffer)
5573 data->set.errorbuffer[0] = '\0';
5574 data->state.errorbuf = FALSE;
5578 if(CURLE_OK != result)
5582 Curl_pgrsTime(data, TIMER_CONNECT); /* we're connected already */
5583 Curl_pgrsTime(data, TIMER_APPCONNECT); /* we're connected already */
5584 conn->bits.tcpconnect[FIRSTSOCKET] = TRUE;
5585 *protocol_done = TRUE;
5586 Curl_verboseconnect(conn);
5587 Curl_updateconninfo(conn, conn->sock[FIRSTSOCKET]);
5589 /* Stop the loop now */
5593 conn->now = Curl_tvnow(); /* time this *after* the connect is done, we
5594 set this here perhaps a second time */
5598 * This check is quite a hack. We're calling _fsetmode to fix the problem
5599 * with fwrite converting newline characters (you get mangled text files,
5600 * and corrupted binary files when you download to stdout and redirect it to
5604 if((data->set.out)->_handle == NULL) {
5605 _fsetmode(stdout, "b");
5612 CURLcode Curl_connect(struct SessionHandle *data,
5613 struct connectdata **in_connect,
5615 bool *protocol_done)
5619 *asyncp = FALSE; /* assume synchronous resolves by default */
5621 /* call the stuff that needs to be called */
5622 code = create_conn(data, in_connect, asyncp);
5624 if(CURLE_OK == code) {
5626 if((*in_connect)->send_pipe->size || (*in_connect)->recv_pipe->size)
5628 *protocol_done = TRUE;
5630 /* DNS resolution is done: that's either because this is a reused
5631 connection, in which case DNS was unnecessary, or because DNS
5632 really did finish already (synch resolver/fast async resolve) */
5633 code = Curl_setup_conn(*in_connect, protocol_done);
5637 if(code == CURLE_NO_CONNECTION_AVAILABLE) {
5642 if(code && *in_connect) {
5643 /* We're not allowed to return failure with memory left allocated
5644 in the connectdata struct, free those here */
5645 Curl_disconnect(*in_connect, FALSE); /* close the connection */
5646 *in_connect = NULL; /* return a NULL */
5652 CURLcode Curl_done(struct connectdata **connp,
5653 CURLcode status, /* an error if this is called after an
5654 error was detected */
5658 struct connectdata *conn;
5659 struct SessionHandle *data;
5661 DEBUGASSERT(*connp);
5667 /* Stop if Curl_done() has already been called */
5670 Curl_getoff_all_pipelines(data, conn);
5672 if((conn->send_pipe->size + conn->recv_pipe->size != 0 &&
5673 !data->set.reuse_forbid &&
5675 /* Stop if pipeline is not empty and we do not have to close
5679 conn->bits.done = TRUE; /* called just now! */
5681 /* Cleanup possible redirect junk */
5682 if(data->req.newurl) {
5683 free(data->req.newurl);
5684 data->req.newurl = NULL;
5686 if(data->req.location) {
5687 free(data->req.location);
5688 data->req.location = NULL;
5691 Curl_resolver_cancel(conn);
5693 if(conn->dns_entry) {
5694 Curl_resolv_unlock(data, conn->dns_entry); /* done with this */
5695 conn->dns_entry = NULL;
5698 if(status == CURLE_ABORTED_BY_CALLBACK)
5699 /* When we're aborted due to a callback return code it basically have to
5700 be counted as premature as there is trouble ahead if we don't. We have
5701 many callbacks and protocols work differently, we could potentially do
5702 this more fine-grained in the future. */
5705 /* this calls the protocol-specific function pointer previously set */
5706 if(conn->handler->done)
5707 result = conn->handler->done(conn, status, premature);
5711 if(Curl_pgrsDone(conn) && !result)
5712 result = CURLE_ABORTED_BY_CALLBACK;
5714 /* if the transfer was completed in a paused state there can be buffered
5715 data left to write and then kill */
5716 if(data->state.tempwrite) {
5717 free(data->state.tempwrite);
5718 data->state.tempwrite = NULL;
5721 /* if data->set.reuse_forbid is TRUE, it means the libcurl client has
5722 forced us to close this no matter what we think.
5724 if conn->bits.close is TRUE, it means that the connection should be
5725 closed in spite of all our efforts to be nice, due to protocol
5726 restrictions in our or the server's end
5728 if premature is TRUE, it means this connection was said to be DONE before
5729 the entire request operation is complete and thus we can't know in what
5730 state it is for re-using, so we're forced to close it. In a perfect world
5731 we can add code that keep track of if we really must close it here or not,
5732 but currently we have no such detail knowledge.
5734 if(data->set.reuse_forbid || conn->bits.close || premature) {
5735 CURLcode res2 = Curl_disconnect(conn, premature); /* close connection */
5737 /* If we had an error already, make sure we return that one. But
5738 if we got a new error, return that. */
5743 /* the connection is no longer in use */
5744 if(ConnectionDone(data, conn)) {
5745 /* remember the most recently used connection */
5746 data->state.lastconnect = conn;
5748 infof(data, "Connection #%ld to host %s left intact\n",
5749 conn->connection_id,
5750 conn->bits.httpproxy?conn->proxy.dispname:conn->host.dispname);
5753 data->state.lastconnect = NULL;
5756 *connp = NULL; /* to make the caller of this function better detect that
5757 this was either closed or handed over to the connection
5758 cache here, and therefore cannot be used from this point on
5760 Curl_free_request_state(data);
5766 * do_init() inits the readwrite session. This is inited each time (in the DO
5767 * function before the protocol-specific DO functions are invoked) for a
5768 * transfer, sometimes multiple times on the same SessionHandle. Make sure
5769 * nothing in here depends on stuff that are setup dynamically for the
5773 static CURLcode do_init(struct connectdata *conn)
5775 struct SessionHandle *data = conn->data;
5776 struct SingleRequest *k = &data->req;
5778 conn->bits.done = FALSE; /* Curl_done() is not called yet */
5779 conn->bits.do_more = FALSE; /* by default there's no curl_do_more() to use */
5780 data->state.expect100header = FALSE;
5782 if(data->set.opt_no_body)
5783 /* in HTTP lingo, no body means using the HEAD request... */
5784 data->set.httpreq = HTTPREQ_HEAD;
5785 else if(HTTPREQ_HEAD == data->set.httpreq)
5786 /* ... but if unset there really is no perfect method that is the
5787 "opposite" of HEAD but in reality most people probably think GET
5788 then. The important thing is that we can't let it remain HEAD if the
5789 opt_no_body is set FALSE since then we'll behave wrong when getting
5791 data->set.httpreq = HTTPREQ_GET;
5793 k->start = Curl_tvnow(); /* start time */
5794 k->now = k->start; /* current time is now */
5795 k->header = TRUE; /* assume header */
5799 k->buf = data->state.buffer;
5800 k->uploadbuf = data->state.uploadbuffer;
5801 k->hbufp = data->state.headerbuff;
5802 k->ignorebody=FALSE;
5804 Curl_speedinit(data);
5806 Curl_pgrsSetUploadCounter(data, 0);
5807 Curl_pgrsSetDownloadCounter(data, 0);
5813 * do_complete is called when the DO actions are complete.
5815 * We init chunking and trailer bits to their default values here immediately
5816 * before receiving any header data for the current request in the pipeline.
5818 static void do_complete(struct connectdata *conn)
5820 conn->data->req.chunk=FALSE;
5821 conn->data->req.maxfd = (conn->sockfd>conn->writesockfd?
5822 conn->sockfd:conn->writesockfd)+1;
5823 Curl_pgrsTime(conn->data, TIMER_PRETRANSFER);
5826 CURLcode Curl_do(struct connectdata **connp, bool *done)
5828 CURLcode result=CURLE_OK;
5829 struct connectdata *conn = *connp;
5830 struct SessionHandle *data = conn->data;
5832 if(conn->handler->do_it) {
5833 /* generic protocol-specific function pointer set in curl_connect() */
5834 result = conn->handler->do_it(conn, done);
5836 /* This was formerly done in transfer.c, but we better do it here */
5837 if((CURLE_SEND_ERROR == result) && conn->bits.reuse) {
5839 * If the connection is using an easy handle, call reconnect
5840 * to re-establish the connection. Otherwise, let the multi logic
5841 * figure out how to re-establish the connection.
5844 result = Curl_reconnect_request(connp);
5846 if(result == CURLE_OK) {
5847 /* ... finally back to actually retry the DO phase */
5848 conn = *connp; /* re-assign conn since Curl_reconnect_request
5849 creates a new connection */
5850 result = conn->handler->do_it(conn, done);
5857 if((result == CURLE_OK) && *done)
5858 /* do_complete must be called after the protocol-specific DO function */
5865 * Curl_do_more() is called during the DO_MORE multi state. It is basically a
5866 * second stage DO state which (wrongly) was introduced to support FTP's
5867 * second connection.
5869 * TODO: A future libcurl should be able to work away this state.
5871 * 'complete' can return 0 for incomplete, 1 for done and -1 for go back to
5872 * DOING state there's more work to do!
5875 CURLcode Curl_do_more(struct connectdata *conn, int *complete)
5877 CURLcode result=CURLE_OK;
5881 if(conn->handler->do_more)
5882 result = conn->handler->do_more(conn, complete);
5884 if(!result && (*complete == 1))
5885 /* do_complete must be called after the protocol-specific DO function */