3 /***************************************************************************
5 * Project ___| | | | _ \| |
7 * | (__| |_| | _ <| |___
8 * \___|\___/|_| \_\_____|
10 * Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
12 * This software is licensed as described in the file COPYING, which
13 * you should have received as part of this distribution. The terms
14 * are also available at http://curl.haxx.se/docs/copyright.html.
16 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
17 * copies of the Software, and permit persons to whom the Software is
18 * furnished to do so, under the terms of the COPYING file.
20 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21 * KIND, either express or implied.
23 ***************************************************************************/
25 /* This file is for lib internal stuff */
31 #define PORT_TELNET 23
33 #define PORT_HTTPS 443
34 #define PORT_DICT 2628
36 #define PORT_LDAPS 636
40 #define PORT_IMAPS 993
42 #define PORT_POP3S 995
44 #define PORT_SMTPS 465 /* sometimes called SSMTP */
46 #define PORT_RTMP 1935
47 #define PORT_RTMPT PORT_HTTP
48 #define PORT_RTMPS PORT_HTTPS
50 #define DICT_MATCH "/MATCH:"
51 #define DICT_MATCH2 "/M:"
52 #define DICT_MATCH3 "/FIND:"
53 #define DICT_DEFINE "/DEFINE:"
54 #define DICT_DEFINE2 "/D:"
55 #define DICT_DEFINE3 "/LOOKUP:"
57 #define CURL_DEFAULT_USER "anonymous"
58 #define CURL_DEFAULT_PASSWORD "ftp@example.com"
60 /* length of longest IPv6 address string including the trailing null */
61 #define MAX_IPADR_LEN sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255")
63 /* Default FTP/IMAP etc response timeout in milliseconds.
64 Symbian OS panics when given a timeout much greater than 1/2 hour.
66 #define RESP_TIMEOUT (1800*1000)
73 #include "openssl/rsa.h"
74 #include "openssl/crypto.h"
75 #include "openssl/x509.h"
76 #include "openssl/pem.h"
77 #include "openssl/ssl.h"
78 #include "openssl/err.h"
79 #ifdef HAVE_OPENSSL_ENGINE_H
80 #include <openssl/engine.h>
82 #ifdef HAVE_OPENSSL_PKCS12_H
83 #include <openssl/pkcs12.h>
85 #else /* SSLeay-style includes */
92 #ifdef HAVE_OPENSSL_ENGINE_H
95 #ifdef HAVE_OPENSSL_PKCS12_H
98 #endif /* USE_OPENSSL */
100 #error Configuration error; cannot use GnuTLS *and* OpenSSL.
102 #endif /* USE_SSLEAY */
105 #include <gnutls/gnutls.h>
109 #include <polarssl/havege.h>
110 #include <polarssl/ssl.h>
122 #ifdef HAVE_NETINET_IN_H
123 #include <netinet/in.h>
129 #include <zlib.h> /* for content-encoding */
131 /* zlib pollutes the namespace with this definition */
137 # if defined(CURL_STATICLIB) && !defined(CARES_STATICLIB) && \
138 (defined(WIN32) || defined(_WIN32) || defined(__SYMBIAN32__))
139 # define CARES_STATICLIB
144 #include <curl/curl.h>
146 #include "http_chunks.h" /* for the structs and enum stuff */
159 #include "wildcard.h"
164 # elif defined HAVE_GSSMIT
165 # include <gssapi/gssapi.h>
166 # include <gssapi/gssapi_generic.h>
172 #ifdef HAVE_LIBSSH2_H
174 #include <libssh2_sftp.h>
175 #endif /* HAVE_LIBSSH2_H */
177 /* Download buffer size, keep it fairly big for speed reasons */
179 #define BUFSIZE CURL_MAX_WRITE_SIZE
181 /* Initial size of the buffer to store headers in, it'll be enlarged in case
183 #define HEADERSIZE 256
185 #define CURLEASY_MAGIC_NUMBER 0xc0dedbadU
187 /* Some convenience macros to get the larger/smaller value out of two given.
188 We prefix with CURL to prevent name collisions. */
189 #define CURLMAX(x,y) ((x)>(y)?(x):(y))
190 #define CURLMIN(x,y) ((x)<(y)?(x):(y))
193 #if defined(HAVE_KRB4) || defined(HAVE_GSSAPI)
194 /* Types needed for krb4/5-ftp connections */
201 enum protection_level {
210 /* enum for the nonblocking SSL connection state machine */
214 ssl_connect_2_reading,
215 ssl_connect_2_writing,
222 ssl_connection_negotiating,
223 ssl_connection_complete
224 } ssl_connection_state;
226 /* struct for data related to each SSL connection */
227 struct ssl_connect_data {
228 /* Use ssl encrypted communications TRUE/FALSE, not necessarily using it atm
229 but at least asked to or meaning to use it. See 'state' for the exact
230 current state of the connection. */
232 ssl_connection_state state;
234 /* these ones requires specific SSL-types */
238 ssl_connect_state connecting_state;
239 #endif /* USE_SSLEAY */
241 gnutls_session session;
242 gnutls_certificate_credentials cred;
243 ssl_connect_state connecting_state;
244 #endif /* USE_GNUTLS */
254 #endif /* USE_POLARSSL */
257 char *client_nickname;
258 struct SessionHandle *data;
259 #ifdef HAVE_PK11_CREATEGENERICOBJECT
260 PK11GenericObject *key;
261 PK11GenericObject *cacert[2];
266 #endif /* USE_QSOSSL */
269 struct ssl_config_data {
270 long version; /* what version the client wants to use */
271 long certverifyresult; /* result from the certificate verification */
272 long verifypeer; /* set TRUE if this is desired */
273 long verifyhost; /* 0: no verify
274 1: check that CN exists
275 2: CN must match hostname */
276 char *CApath; /* certificate dir (doesn't work on windows) */
277 char *CAfile; /* certificate to verify peer against */
278 const char *CRLfile; /* CRL to check certificate revocation */
279 const char *issuercert;/* optional issuer certificate filename */
280 char *random_file; /* path to file containing "random" data */
281 char *egdsocket; /* path to file containing the EGD daemon socket */
282 char *cipher_list; /* list of ciphers to use */
283 long numsessions; /* SSL session id cache size */
284 curl_ssl_ctx_callback fsslctx; /* function to initialize ssl ctx */
285 void *fsslctxp; /* parameter for call back */
286 bool sessionid; /* cache session IDs or not */
287 bool certinfo; /* gather lots of certificate info */
290 /* information stored about one single SSL session */
291 struct curl_ssl_session {
292 char *name; /* host name for which this ID was used */
293 void *sessionid; /* as returned from the SSL layer */
294 size_t idsize; /* if known, otherwise 0 */
295 long age; /* just a number, the higher the more recent */
296 unsigned short remote_port; /* remote port to connect to */
297 struct ssl_config_data ssl_config; /* setup for this session */
300 /* Struct used for Digest challenge-response authentication */
306 bool stale; /* set true for re-negotiation */
310 int nc; /* nounce count */
321 #ifdef USE_WINDOWS_SSPI
322 #include "curl_sspi.h"
325 #if defined(CURL_DOES_CONVERSIONS) && defined(HAVE_ICONV)
329 /* Struct used for NTLM challenge-response authentication */
332 #ifdef USE_WINDOWS_SSPI
335 SEC_WINNT_AUTH_IDENTITY identity;
336 SEC_WINNT_AUTH_IDENTITY *p_identity;
342 unsigned char nonce[8];
347 struct negotiatedata {
348 /* when doing Negotiate we first need to receive an auth token and then we
349 need to send our header */
350 enum { GSS_AUTHNONE, GSS_AUTHRECV, GSS_AUTHSENT } state;
351 bool gss; /* Whether we're processing GSS-Negotiate or Negotiate */
352 const char* protocol; /* "GSS-Negotiate" or "Negotiate" */
354 gss_ctx_id_t context;
355 gss_name_t server_name;
356 gss_buffer_desc output_token;
362 * Boolean values that concerns this connection.
365 bool close; /* if set, we close the connection after this request */
366 bool reuse; /* if set, this is a re-used connection */
367 bool proxy; /* if set, this transfer is done through a proxy - any type */
368 bool httpproxy; /* if set, this transfer is done through a http proxy */
369 bool user_passwd; /* do we use user+password for this connection? */
370 bool proxy_user_passwd; /* user+password for the proxy? */
371 bool ipv6_ip; /* we communicate with a remote site specified with pure IPv6
373 bool ipv6; /* we communicate with a site using an IPv6 address */
375 bool do_more; /* this is set TRUE if the ->curl_do_more() function is
376 supposed to be called, after ->curl_do() */
378 bool tcpconnect; /* the TCP layer (or similar) is connected, this is set
379 the first time on the first connect function call */
380 bool protoconnstart;/* the protocol layer has STARTED its operation after
381 the TCP layer connect */
383 bool retry; /* this connection is about to get closed and then
384 re-attempted at another connection. */
385 bool tunnel_proxy; /* if CONNECT is used to "tunnel" through the proxy.
386 This is implicit when SSL-protocols are used through
387 proxies, but can also be enabled explicitly by
389 bool tunnel_connecting; /* TRUE while we're still waiting for a proxy CONNECT
391 bool authneg; /* TRUE when the auth phase has started, which means
392 that we are creating a request with an auth header,
393 but it is not the final request in the auth
395 bool rewindaftersend;/* TRUE when the sending couldn't be stopped even
396 though it will be discarded. When the whole send
397 operation is done, we must call the data rewind
399 bool ftp_use_epsv; /* As set with CURLOPT_FTP_USE_EPSV, but if we find out
400 EPSV doesn't work we disable it for the forthcoming
403 bool ftp_use_eprt; /* As set with CURLOPT_FTP_USE_EPRT, but if we find out
404 EPRT doesn't work we disable it for the forthcoming
406 bool netrc; /* name+password provided by netrc */
407 bool userpwd_in_url; /* name+password found in url */
409 bool done; /* set to FALSE when Curl_do() is called and set to TRUE
410 when Curl_done() is called, to prevent Curl_done() to
411 get invoked twice when the multi interface is
413 bool stream_was_rewound; /* Indicates that the stream was rewound after a
414 request read past the end of its response byte
416 bool proxy_connect_closed; /* set true if a proxy disconnected the
417 connection in a CONNECT request with auth, so
418 that libcurl should reconnect and continue. */
419 bool bound; /* set true if bind() has already been done on this socket/
424 char *rawalloc; /* allocated "raw" version of the name */
425 char *encalloc; /* allocated IDN-encoded version of the name */
426 char *name; /* name to use internally, might be encoded, might be raw */
427 const char *dispname; /* name to display, as 'name' might be encoded */
431 * Flags on the keepon member of the Curl_transfer_keeper
435 #define KEEP_RECV (1<<0) /* there is or may be data to read */
436 #define KEEP_SEND (1<<1) /* there is or may be data to write */
437 #define KEEP_RECV_HOLD (1<<2) /* when set, no reading should be done but there
438 might still be data to read */
439 #define KEEP_SEND_HOLD (1<<3) /* when set, no writing should be done but there
440 might still be data to write */
441 #define KEEP_RECV_PAUSE (1<<4) /* reading is paused */
442 #define KEEP_SEND_PAUSE (1<<5) /* writing is paused */
444 #define KEEP_RECVBITS (KEEP_RECV | KEEP_RECV_HOLD | KEEP_RECV_PAUSE)
445 #define KEEP_SENDBITS (KEEP_SEND | KEEP_SEND_HOLD | KEEP_SEND_PAUSE)
450 ZLIB_UNINIT, /* uninitialized */
451 ZLIB_INIT, /* initialized */
452 ZLIB_GZIP_HEADER, /* reading gzip header */
453 ZLIB_GZIP_INFLATING, /* inflating gzip stream */
454 ZLIB_INIT_GZIP /* initialized in transparent gzip mode */
458 #ifdef CURLRES_ASYNCH
462 struct Curl_dns_entry *dns;
463 bool done; /* set TRUE when the lookup is complete */
464 int status; /* if done is TRUE, this is the status from the callback */
465 void *os_specific; /* 'struct thread_data' for Windows */
469 #define FIRSTSOCKET 0
470 #define SECONDARYSOCKET 1
472 /* These function pointer types are here only to allow easier typecasting
473 within the source when we need to cast between data pointers (such as NULL)
474 and function pointers. */
475 typedef CURLcode (*Curl_do_more_func)(struct connectdata *);
476 typedef CURLcode (*Curl_done_func)(struct connectdata *, CURLcode, bool);
480 EXP100_SEND_DATA, /* enough waiting, just send the body now */
481 EXP100_AWAITING_CONTINUE, /* waiting for the 100 Continue header */
482 EXP100_SENDING_REQUEST, /* still sending the request but will wait for
483 the 100 header once done with the request */
484 EXP100_FAILED /* used on 417 Expectation Failed */
488 * Request specific data in the easy handle (SessionHandle). Previously,
489 * these members were on the connectdata struct but since a conn struct may
490 * now be shared between different SessionHandles, we store connection-specific
491 * data here. This struct only keeps stuff that's interesting for *this*
492 * request, as it will be cleared between multiple ones
494 struct SingleRequest {
495 curl_off_t size; /* -1 if unknown at this point */
496 curl_off_t *bytecountp; /* return number of bytes read or NULL */
498 curl_off_t maxdownload; /* in bytes, the maximum amount of data to fetch,
499 -1 means unlimited */
500 curl_off_t *writebytecountp; /* return number of bytes written or NULL */
502 curl_off_t bytecount; /* total number of bytes read */
503 curl_off_t writebytecount; /* number of bytes written */
505 long headerbytecount; /* only count received headers */
506 long deductheadercount; /* this amount of bytes doesn't count when we check
507 if anything has been transfered at the end of a
508 connection. We use this counter to make only a
509 100 reply (without a following second response
510 code) result in a CURLE_GOT_NOTHING error code */
512 struct timeval start; /* transfer started at this time */
513 struct timeval now; /* current time */
514 bool header; /* incoming data has HTTP header */
516 HEADER_NORMAL, /* no bad header at all */
517 HEADER_PARTHEADER, /* part of the chunk is a bad header, the rest
519 HEADER_ALLBAD /* all was believed to be header */
520 } badheader; /* the header was deemed bad and will be
522 int headerline; /* counts header lines to better track the
524 char *hbufp; /* points at *end* of header line */
526 char *str; /* within buf */
527 char *str_start; /* within buf */
528 char *end_ptr; /* within buf */
529 char *p; /* within headerbuff */
530 bool content_range; /* set TRUE if Content-Range: was found */
531 curl_off_t offset; /* possible resume offset read from the
532 Content-Range: header */
533 int httpcode; /* error code from the 'HTTP/1.? XXX' or
534 'RTSP/1.? XXX' line */
535 struct timeval start100; /* time stamp to wait for the 100 code from */
536 enum expect100 exp100; /* expect 100 continue state */
538 int content_encoding; /* What content encoding. sec 3.5, RFC2616. */
540 #define IDENTITY 0 /* No encoding */
541 #define DEFLATE 1 /* zlib deflate [RFC 1950 & 1951] */
542 #define GZIP 2 /* gzip algorithm [RFC 1952] */
543 #define COMPRESS 3 /* Not handled, added for completeness */
546 zlibInitState zlib_init; /* possible zlib init state;
547 undefined if Content-Encoding header. */
548 z_stream z; /* State structure for zlib. */
560 bool upload_done; /* set to TRUE when doing chunked transfer-encoding upload
561 and we're uploading the last chunk */
563 bool ignorebody; /* we read a response-body but we ignore it! */
564 bool ignorecl; /* This HTTP response has no body so we ignore the Content-
567 char *location; /* This points to an allocated version of the Location:
569 char *newurl; /* Set to the new URL to use when a redirect or a retry is
572 /* 'upload_present' is used to keep a byte counter of how much data there is
573 still left in the buffer, aimed for upload. */
574 ssize_t upload_present;
576 /* 'upload_fromhere' is used as a read-pointer when we uploaded parts of a
577 buffer, so the next read should read from where this pointer points to,
578 and the 'upload_present' contains the number of bytes available at this
580 char *upload_fromhere;
582 bool chunk; /* if set, this is a chunked transfer-encoding */
583 bool upload_chunky; /* set TRUE if we are doing chunked transfer-encoding
585 bool getheader; /* TRUE if header parsing is wanted */
587 bool forbidchunk; /* used only to explicitly forbid chunk-upload for
588 specific upload buffers. See readmoredata() in
589 http.c for details. */
590 bool trailerhdrpresent; /* Set when Trailer: header found in HTTP response.
591 Required to determine whether to look for trailers
592 in case of Transfer-Encoding: chunking */
596 * Specific protocol handler.
599 struct Curl_handler {
600 const char * scheme; /* URL scheme name. */
602 /* Complement to setup_connection_internals(). */
603 CURLcode (*setup_connection)(struct connectdata *);
605 /* These two functions MUST be set to be protocol dependent */
606 CURLcode (*do_it)(struct connectdata *, bool *done);
609 /* If the curl_do() function is better made in two halves, this
610 * curl_do_more() function will be called afterwards, if set. For example
611 * for doing the FTP stuff after the PASV/PORT command.
613 Curl_do_more_func do_more;
615 /* This function *MAY* be set to a protocol-dependent function that is run
616 * after the connect() and everything is done, as a step in the connection.
617 * The 'done' pointer points to a bool that should be set to TRUE if the
618 * function completes before return. If it doesn't complete, the caller
619 * should call the curl_connecting() function until it is.
621 CURLcode (*connect_it)(struct connectdata *, bool *done);
623 /* See above. Currently only used for FTP. */
624 CURLcode (*connecting)(struct connectdata *, bool *done);
625 CURLcode (*doing)(struct connectdata *, bool *done);
627 /* Called from the multi interface during the PROTOCONNECT phase, and it
628 should then return a proper fd set */
629 int (*proto_getsock)(struct connectdata *conn,
630 curl_socket_t *socks,
633 /* Called from the multi interface during the DOING phase, and it should
634 then return a proper fd set */
635 int (*doing_getsock)(struct connectdata *conn,
636 curl_socket_t *socks,
639 /* Called from the multi interface during the DO_DONE, PERFORM and
640 WAITPERFORM phases, and it should then return a proper fd set. Not setting
641 this will make libcurl use the generic default one. */
642 int (*perform_getsock)(const struct connectdata *conn,
643 curl_socket_t *socks,
646 /* This function *MAY* be set to a protocol-dependent function that is run
647 * by the curl_disconnect(), as a step in the disconnection.
649 CURLcode (*disconnect)(struct connectdata *);
651 long defport; /* Default port. */
652 long protocol; /* PROT_* flags concerning the protocol set */
655 /* return the count of bytes sent, or -1 on error */
656 typedef ssize_t (Curl_send)(struct connectdata *conn, /* connection data */
657 int sockindex, /* socketindex */
658 const void *buf, /* data to write */
659 size_t len, /* max amount to write */
660 CURLcode *err); /* error to return */
662 /* return the count of bytes read, or -1 on error */
663 typedef ssize_t (Curl_recv)(struct connectdata *conn, /* connection data */
664 int sockindex, /* socketindex */
665 char *buf, /* store data here */
666 size_t len, /* max amount to read */
667 CURLcode *err); /* error to return */
670 * The connectdata struct contains all fields and variables that should be
671 * unique for an entire connection.
674 /* 'data' is the CURRENT SessionHandle using this connection -- take great
675 caution that this might very well vary between different times this
676 connection is used! */
677 struct SessionHandle *data;
679 /* chunk is for HTTP chunked encoding, but is in the general connectdata
680 struct only because we can do just about any protocol through a HTTP proxy
681 and a HTTP proxy may in fact respond using chunked encoding */
682 struct Curl_chunker chunk;
684 bool inuse; /* This is a marker for the connection cache logic. If this is
685 TRUE this handle is being used by an easy handle and cannot
686 be used by any other easy handle without careful
687 consideration (== only for pipelining). */
689 /**** Fields set when inited and not modified again */
690 long connectindex; /* what index in the connection cache connects index this
691 particular struct has */
692 long protocol; /* PROT_* flags concerning the protocol set */
693 #define PROT_HTTP CURLPROTO_HTTP
694 #define PROT_HTTPS CURLPROTO_HTTPS
695 #define PROT_FTP CURLPROTO_FTP
696 #define PROT_TELNET CURLPROTO_TELNET
697 #define PROT_DICT CURLPROTO_DICT
698 #define PROT_LDAP CURLPROTO_LDAP
699 #define PROT_FILE CURLPROTO_FILE
700 #define PROT_FTPS CURLPROTO_FTPS
701 #define PROT_TFTP CURLPROTO_TFTP
702 #define PROT_SCP CURLPROTO_SCP
703 #define PROT_SFTP CURLPROTO_SFTP
704 #define PROT_IMAP CURLPROTO_IMAP
705 #define PROT_IMAPS CURLPROTO_IMAPS
706 #define PROT_POP3 CURLPROTO_POP3
707 #define PROT_POP3S CURLPROTO_POP3S
708 #define PROT_SMTP CURLPROTO_SMTP
709 #define PROT_SMTPS CURLPROTO_SMTPS
710 #define PROT_RTSP CURLPROTO_RTSP
711 #define PROT_RTMP CURLPROTO_RTMP
712 #define PROT_RTMPT CURLPROTO_RTMPT
713 #define PROT_RTMPE CURLPROTO_RTMPE
714 #define PROT_RTMPTE CURLPROTO_RTMPTE
715 #define PROT_RTMPS CURLPROTO_RTMPS
716 #define PROT_RTMPTS CURLPROTO_RTMPTS
718 /* (1<<24) is currently the highest used bit in the public bitmask. We make
719 sure we use "private bits" above the public ones to make things easier. */
721 #define PROT_EXTMASK 0xffffff
723 #define PROT_SSL (1<<29) /* protocol requires SSL */
725 /* these ones need action before socket close */
726 #define PROT_CLOSEACTION (PROT_FTP | PROT_IMAP | PROT_POP3)
727 #define PROT_DUALCHANNEL PROT_FTP /* these protocols use two connections */
729 /* 'dns_entry' is the particular host we use. This points to an entry in the
730 DNS cache and it will not get pruned while locked. It gets unlocked in
731 Curl_done(). This entry will be NULL if the connection is re-used as then
732 there is no name resolve done. */
733 struct Curl_dns_entry *dns_entry;
735 /* 'ip_addr' is the particular IP we connected to. It points to a struct
736 within the DNS cache, so this pointer is only valid as long as the DNS
737 cache entry remains locked. It gets unlocked in Curl_done() */
738 Curl_addrinfo *ip_addr;
740 /* 'ip_addr_str' is the ip_addr data as a human readable string.
741 It remains available as long as the connection does, which is longer than
742 the ip_addr itself. */
743 char ip_addr_str[MAX_IPADR_LEN];
745 unsigned int scope; /* address scope for IPv6 */
747 int socktype; /* SOCK_STREAM or SOCK_DGRAM */
749 struct hostname host;
750 struct hostname proxy;
752 long port; /* which port to use locally */
753 unsigned short remote_port; /* what remote port to connect to,
754 not the proxy port! */
756 char *user; /* user name string, allocated */
757 char *passwd; /* password string, allocated */
759 char *proxyuser; /* proxy user name string, allocated */
760 char *proxypasswd; /* proxy password string, allocated */
761 curl_proxytype proxytype; /* what kind of proxy that is in use */
763 int httpversion; /* the HTTP version*10 reported by the server */
764 int rtspversion; /* the RTSP version*10 reported by the server */
766 struct timeval now; /* "current" time */
767 struct timeval created; /* creation time */
768 curl_socket_t sock[2]; /* two sockets, the second is used for the data
769 transfer when doing FTP */
774 struct ssl_connect_data ssl[2]; /* this is for ssl-stuff */
775 struct ssl_config_data ssl_config;
777 struct ConnectBits bits; /* various state-flags for this connection */
779 const struct Curl_handler * handler; /* Connection's protocol handler. */
781 /**** curl_get() phase fields */
783 curl_socket_t sockfd; /* socket to read from or CURL_SOCKET_BAD */
784 curl_socket_t writesockfd; /* socket to write to, it may very
785 well be the same we read from.
786 CURL_SOCKET_BAD disables */
788 /** Dynamicly allocated strings, may need to be freed before this **/
789 /** struct is killed. **/
790 struct dynamically_allocated_data {
791 char *proxyuserpwd; /* free later if not NULL! */
792 char *uagent; /* free later if not NULL! */
793 char *accept_encoding; /* free later if not NULL! */
794 char *userpwd; /* free later if not NULL! */
795 char *rangeline; /* free later if not NULL! */
796 char *ref; /* free later if not NULL! */
797 char *host; /* free later if not NULL */
798 char *cookiehost; /* free later if not NULL */
799 char *rtsp_transport; /* free later if not NULL */
802 int sec_complete; /* if kerberos is enabled for this connection */
803 #if defined(HAVE_KRB4) || defined(HAVE_GSSAPI)
804 enum protection_level command_prot;
805 enum protection_level data_prot;
806 enum protection_level request_data_prot;
808 struct krb4buffer in_buffer, out_buffer;
810 const struct Curl_sec_client_mech *mech;
811 struct sockaddr_in local_addr;
814 /* the two following *_inuse fields are only flags, not counters in any way.
815 If TRUE it means the channel is in use, and if FALSE it means the channel
816 is up for grabs by one. */
818 bool readchannel_inuse; /* whether the read channel is in use by an easy
820 bool writechannel_inuse; /* whether the write channel is in use by an easy
822 bool server_supports_pipelining; /* TRUE if server supports pipelining,
823 set after first response */
825 struct curl_llist *send_pipe; /* List of handles waiting to
826 send on this pipeline */
827 struct curl_llist *recv_pipe; /* List of handles waiting to read
828 their responses on this pipeline */
829 struct curl_llist *pend_pipe; /* List of pending handles on
831 struct curl_llist *done_pipe; /* Handles that are finished, but
832 still reference this connectdata */
833 #define MAX_PIPELINE_LENGTH 5
835 char* master_buffer; /* The master buffer allocated on-demand;
836 used for pipelining. */
837 size_t read_pos; /* Current read position in the master buffer */
838 size_t buf_len; /* Length of the buffer?? */
841 curl_seek_callback seek_func; /* function that seeks the input */
842 void *seek_client; /* pointer to pass to the seek() above */
844 /*************** Request - specific items ************/
846 /* previously this was in the urldata struct */
847 curl_read_callback fread_func; /* function that reads the input */
848 void *fread_in; /* pointer to pass to the fread() above */
850 struct ntlmdata ntlm; /* NTLM differs from other authentication schemes
851 because it authenticates connections, not
853 struct ntlmdata proxyntlm; /* NTLM data for proxy */
855 char syserr_buf [256]; /* buffer for Curl_strerror() */
857 #ifdef CURLRES_ASYNCH
858 /* data used for the asynch name resolve callback */
859 struct Curl_async async;
862 /* These three are used for chunked-encoding trailer support */
863 char *trailer; /* allocated buffer to store trailer in */
864 int trlMax; /* allocated buffer size */
865 int trlPos; /* index of where to store data */
868 struct ftp_conn ftpc;
869 struct ssh_conn sshc;
870 struct tftp_state_data *tftpc;
871 struct imap_conn imapc;
872 struct pop3_conn pop3c;
873 struct smtp_conn smtpc;
874 struct rtsp_conn rtspc;
878 int cselect_bits; /* bitmask of socket events */
879 int waitfor; /* current READ/WRITE bits to wait for */
881 #if defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)
882 int socks5_gssapi_enctype;
889 /* The end of connectdata. */
892 * Struct to keep statistical and informational data.
895 int httpcode; /* Recent HTTP, FTP, or RTSP response code */
896 int httpproxycode; /* response code from proxy when received separate */
897 int httpversion; /* the http version number X.Y = X*10+Y */
898 long filetime; /* If requested, this is might get set. Set to -1 if the time
899 was unretrievable. We cannot have this of type time_t,
900 since time_t is unsigned on several platforms such as
902 bool timecond; /* set to TRUE if the time condition didn't match, which
903 thus made the document NOT get fetched */
904 long header_size; /* size of read header(s) in bytes */
905 long request_size; /* the amount of bytes sent in the request(s) */
906 long proxyauthavail; /* what proxy auth types were announced */
907 long httpauthavail; /* what host auth types were announced */
908 long numconnects; /* how many new connection did libcurl created */
909 char *contenttype; /* the content type of the object */
910 char *wouldredirect; /* URL this would've been redirected to if asked to */
911 char ip[MAX_IPADR_LEN]; /* this buffer gets the numerical ip version stored
912 at the connect *attempt* so it will get the last
913 tried connect IP even on failures */
914 struct curl_certinfo certs; /* info about the certs, only populated in
915 OpenSSL builds. Asked for with
916 CURLOPT_CERTINFO / CURLINFO_CERTINFO */
921 long lastshow; /* time() of the last displayed progress meter or NULL to
922 force redraw at next call */
923 curl_off_t size_dl; /* total expected size */
924 curl_off_t size_ul; /* total expected size */
925 curl_off_t downloaded; /* transfered so far */
926 curl_off_t uploaded; /* transfered so far */
928 curl_off_t current_speed; /* uses the currently fastest transfer */
930 bool callback; /* set when progress callback is used */
931 int width; /* screen width at download start */
932 int flags; /* see progress.h */
942 double t_pretransfer;
943 double t_starttransfer;
946 struct timeval start;
947 struct timeval t_startsingle;
948 #define CURR_TIME (5+1) /* 6 entries for 5 seconds */
950 curl_off_t speeder[ CURR_TIME ];
951 struct timeval speeder_time[ CURR_TIME ];
956 HTTPREQ_NONE, /* first in list */
959 HTTPREQ_POST_FORM, /* we make a difference internally */
963 HTTPREQ_LAST /* last in list */
967 RTSPREQ_NONE, /* first in list */
975 RTSPREQ_GET_PARAMETER,
976 RTSPREQ_SET_PARAMETER,
979 RTSPREQ_LAST /* last in list */
983 * Values that are generated, temporary or calculated internally for a
984 * "session handle" must be defined within the 'struct UrlState'. This struct
985 * will be used within the SessionHandle struct. When the 'SessionHandle'
986 * struct is cloned, this data MUST NOT be copied.
988 * Remember that any "state" information goes globally for the curl handle.
989 * Session-data MUST be put in the connectdata struct and here. */
990 #define MAX_CURL_USER_LENGTH 256
991 #define MAX_CURL_PASSWORD_LENGTH 256
992 #define MAX_CURL_USER_LENGTH_TXT "255"
993 #define MAX_CURL_PASSWORD_LENGTH_TXT "255"
996 long want; /* Bitmask set to the authentication methods wanted by the app
997 (with CURLOPT_HTTPAUTH or CURLOPT_PROXYAUTH). */
999 long avail; /* bitmask for what the server reports to support for this
1001 bool done; /* TRUE when the auth phase is done and ready to do the *actual*
1003 bool multi; /* TRUE if this is not yet authenticated but within the auth
1004 multipass negotiation */
1005 bool iestyle; /* TRUE if digest should be done IE-style or FALSE if it should
1010 /* 'connects' will be an allocated array with pointers. If the pointer is
1011 set, it holds an allocated connection. */
1012 struct connectdata **connects;
1013 long num; /* number of entries of the 'connects' array */
1015 CONNCACHE_PRIVATE, /* used for an easy handle alone */
1016 CONNCACHE_MULTI /* shared within a multi handle */
1028 struct conncache *connc; /* points to the connection cache this handle
1031 /* buffers to store authentication data in, as parsed from input options */
1032 struct timeval keeps_speed; /* for the progress meter really */
1034 long lastconnect; /* index of most recent connect or -1 if undefined */
1036 char *headerbuff; /* allocated buffer to store headers in */
1037 size_t headersize; /* size of the allocation */
1039 char buffer[BUFSIZE+1]; /* download buffer */
1040 char uploadbuffer[BUFSIZE+1]; /* upload buffer */
1041 curl_off_t current_speed; /* the ProgressShow() funcion sets this,
1043 bool this_is_a_follow; /* this is a followed Location: request */
1045 char *first_host; /* if set, this should be the host name that we will
1046 sent authorization to, no else. Used to make Location:
1047 following not keep sending user+password... This is
1050 struct curl_ssl_session *session; /* array of 'numsessions' size */
1051 long sessionage; /* number of the most recent session */
1052 char *tempwrite; /* allocated buffer to keep data in when a write
1053 callback returns to make the connection paused */
1054 size_t tempwritesize; /* size of the 'tempwrite' allocated buffer */
1055 int tempwritetype; /* type of the 'tempwrite' buffer as a bitmask that is
1056 used with Curl_client_write() */
1057 char *scratch; /* huge buffer[BUFSIZE*2] when doing upload CRLF replacing */
1058 bool errorbuf; /* Set to TRUE if the error buffer is already filled in.
1059 This must be set to FALSE every time _easy_perform() is
1061 int os_errno; /* filled in with errno whenever an error occurs */
1063 /* storage for the previous bag^H^H^HSIGPIPE signal handler :-) */
1064 void (*prev_signal)(int sig);
1066 bool allow_port; /* Is set.use_port allowed to take effect or not. This
1067 is always set TRUE when curl_easy_perform() is called. */
1068 struct digestdata digest; /* state data for host Digest auth */
1069 struct digestdata proxydigest; /* state data for proxy Digest auth */
1072 struct negotiatedata negotiate; /* state data for host Negotiate auth */
1073 struct negotiatedata proxyneg; /* state data for proxy Negotiate auth */
1076 struct auth authhost; /* auth details for host */
1077 struct auth authproxy; /* auth details for proxy */
1079 bool authproblem; /* TRUE if there's some problem authenticating */
1082 ares_channel areschannel; /* for name resolves */
1085 #if defined(USE_SSLEAY) && defined(HAVE_OPENSSL_ENGINE_H)
1087 #endif /* USE_SSLEAY */
1088 struct timeval expiretime; /* set this with Curl_expire() only */
1089 struct Curl_tree timenode; /* for the splay stuff */
1091 /* a place to store the most recently set FTP entrypath */
1092 char *most_recent_ftp_entrypath;
1094 /* set after initial USER failure, to prevent an authentication loop */
1095 bool ftp_trying_alternative;
1097 int httpversion; /* the lowest HTTP version*10 reported by any server
1098 involved in this request */
1099 bool expect100header; /* TRUE if we added Expect: 100-continue */
1101 bool pipe_broke; /* TRUE if the connection we were pipelined on broke
1102 and we need to restart from the beginning */
1104 #if !defined(WIN32) && !defined(MSDOS) && !defined(__EMX__) && \
1105 !defined(__SYMBIAN32__)
1106 /* do FTP line-end conversions on most platforms */
1107 #define CURL_DO_LINEEND_CONV
1108 /* for FTP downloads: track CRLF sequences that span blocks */
1109 bool prev_block_had_trailing_cr;
1110 /* for FTP downloads: how many CRLFs did we converted to LFs? */
1111 curl_off_t crlf_conversions;
1113 /* If set to non-NULL, there's a connection in a shared connection cache
1114 that uses this handle so we can't kill this SessionHandle just yet but
1115 must keep it around and add it to the list of handles to kill once all
1116 its connections are gone */
1118 bool closed; /* set to TRUE when curl_easy_cleanup() has been called on this
1119 handle, but it is kept around as mentioned for
1121 char *pathbuffer;/* allocated buffer to store the URL's path part in */
1122 char *path; /* path to use, points to somewhere within the pathbuffer
1126 bool rangestringalloc; /* the range string is malloc()'ed */
1128 char *range; /* range, if used. See README for detailed specification on
1130 curl_off_t resume_from; /* continue [ftp] transfer from here */
1132 /* This RTSP state information survives requests and connections */
1133 long rtsp_next_client_CSeq; /* the session's next client CSeq */
1134 long rtsp_next_server_CSeq; /* the session's next server CSeq */
1135 long rtsp_CSeq_recv; /* most recent CSeq received */
1137 /* Protocol specific data.
1139 *************************************************************************
1140 * Note that this data will be REMOVED after each request, so anything that
1141 * should be kept/stored on a per-connection basis and thus live for the
1142 * next request on the same connection MUST be put in the connectdata struct!
1143 *************************************************************************/
1146 struct HTTP *https; /* alias, just for the sake of being more readable */
1149 /* void *tftp; not used */
1150 struct FILEPROTO *file;
1151 void *telnet; /* private for telnet.c-eyes only */
1153 struct SSHPROTO *ssh;
1158 /* current user of this SessionHandle instance, or NULL */
1159 struct connectdata *current_conn;
1161 /* if true, force SSL connection retry (workaround for certain servers) */
1162 bool ssl_connect_retry;
1167 * This 'DynamicStatic' struct defines dynamic states that actually change
1168 * values in the 'UserDefined' area, which MUST be taken into consideration
1169 * if the UserDefined struct is cloned or similar. You can probably just
1170 * copy these, but each one indicate a special action on other data.
1173 struct DynamicStatic {
1174 char *url; /* work URL, copied from UserDefined */
1175 bool url_alloc; /* URL string is malloc()'ed */
1176 char *referer; /* referer string */
1177 bool referer_alloc; /* referer sting is malloc()ed */
1178 struct curl_slist *cookielist; /* list of cookie files set by
1179 curl_easy_setopt(COOKIEFILE) calls */
1183 * This 'UserDefined' struct must only contain data that is set once to go
1184 * for many (perhaps) independent connections. Values that are generated or
1185 * calculated internally for the "session handle" MUST be defined within the
1186 * 'struct UrlState' instead. The only exceptions MUST note the changes in
1187 * the 'DynamicStatic' struct.
1188 * Character pointer fields point to dynamic storage, unless otherwise stated.
1190 struct Curl_one_easy; /* declared and used only in multi.c */
1191 struct Curl_multi; /* declared and used only in multi.c */
1194 STRING_CERT, /* client certificate file name */
1195 STRING_CERT_TYPE, /* format for certificate (default: PEM)*/
1196 STRING_COOKIE, /* HTTP cookie string to send */
1197 STRING_COOKIEJAR, /* dump all cookies to this file */
1198 STRING_CUSTOMREQUEST, /* HTTP/FTP/RTSP request/method to use */
1199 STRING_DEVICE, /* local network interface/address to use */
1200 STRING_ENCODING, /* Accept-Encoding string */
1201 STRING_FTP_ACCOUNT, /* ftp account data */
1202 STRING_FTP_ALTERNATIVE_TO_USER, /* command to send if USER/PASS fails */
1203 STRING_FTPPORT, /* port to send with the FTP PORT command */
1204 STRING_KEY, /* private key file name */
1205 STRING_KEY_PASSWD, /* plain text private key password */
1206 STRING_KEY_TYPE, /* format for private key (default: PEM) */
1207 STRING_KRB_LEVEL, /* krb security level */
1208 STRING_NETRC_FILE, /* if not NULL, use this instead of trying to find
1210 STRING_COPYPOSTFIELDS, /* if POST, set the fields' values here */
1211 STRING_PROXY, /* proxy to use */
1212 STRING_SET_RANGE, /* range, if used */
1213 STRING_SET_REFERER, /* custom string for the HTTP referer field */
1214 STRING_SET_URL, /* what original URL to work on */
1215 STRING_SSL_CAPATH, /* CA directory name (doesn't work on windows) */
1216 STRING_SSL_CAFILE, /* certificate file to verify peer against */
1217 STRING_SSL_CIPHER_LIST, /* list of ciphers to use */
1218 STRING_SSL_EGDSOCKET, /* path to file containing the EGD daemon socket */
1219 STRING_SSL_RANDOM_FILE, /* path to file containing "random" data */
1220 STRING_USERAGENT, /* User-Agent string */
1221 STRING_SSL_CRLFILE, /* crl file to check certificate */
1222 STRING_SSL_ISSUERCERT, /* issuer cert file to check certificate */
1223 STRING_USERNAME, /* <username>, if used */
1224 STRING_PASSWORD, /* <password>, if used */
1225 STRING_PROXYUSERNAME, /* Proxy <username>, if used */
1226 STRING_PROXYPASSWORD, /* Proxy <password>, if used */
1227 STRING_NOPROXY, /* List of hosts which should not use the proxy, if
1229 STRING_RTSP_SESSION_ID, /* Session ID to use */
1230 STRING_RTSP_STREAM_URI, /* Stream URI for this request */
1231 STRING_RTSP_TRANSPORT, /* Transport for this session */
1233 STRING_SSH_PRIVATE_KEY, /* path to the private key file for auth */
1234 STRING_SSH_PUBLIC_KEY, /* path to the public key file for auth */
1235 STRING_SSH_HOST_PUBLIC_KEY_MD5, /* md5 of host public key in ascii hex */
1236 STRING_SSH_KNOWNHOSTS, /* file name of knownhosts file */
1238 #if defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)
1239 STRING_SOCKS5_GSSAPI_SERVICE, /* GSSAPI service name */
1243 /* -- end of strings -- */
1244 STRING_LAST /* not used, just an end-of-list marker */
1247 struct UserDefined {
1248 FILE *err; /* the stderr user data goes here */
1249 void *debugdata; /* the data that will be passed to fdebug */
1250 char *errorbuffer; /* (Static) store failure messages in here */
1251 long proxyport; /* If non-zero, use this port number by default. If the
1252 proxy string features a ":[port]" that one will override
1254 void *out; /* the fetched file goes here */
1255 void *in; /* the uploaded file is read from here */
1256 void *writeheader; /* write the header to this if non-NULL */
1257 void *rtp_out; /* write RTP to this if non-NULL */
1258 long use_port; /* which port to use (when not using default) */
1259 long httpauth; /* what kind of HTTP authentication to use (bitmask) */
1260 long proxyauth; /* what kind of proxy authentication to use (bitmask) */
1261 long followlocation; /* as in HTTP Location: */
1262 long maxredirs; /* maximum no. of http(s) redirects to follow, set to -1
1264 bool post301; /* Obey RFC 2616/10.3.2 and keep POSTs as POSTs after a
1266 bool post302; /* keep POSTs as POSTs after a 302 */
1267 bool free_referer; /* set TRUE if 'referer' points to a string we
1269 void *postfields; /* if POST, set the fields' values here */
1270 curl_seek_callback seek_func; /* function that seeks the input */
1271 curl_off_t postfieldsize; /* if POST, this might have a size to use instead
1272 of strlen(), and then the data *may* be binary
1273 (contain zero bytes) */
1274 unsigned short localport; /* local port number to bind to */
1275 int localportrange; /* number of additional port numbers to test in case the
1276 'localport' one can't be bind()ed */
1277 curl_write_callback fwrite_func; /* function that stores the output */
1278 curl_write_callback fwrite_header; /* function that stores headers */
1279 curl_write_callback fwrite_rtp; /* function that stores interleaved RTP */
1280 curl_read_callback fread_func; /* function that reads the input */
1281 int is_fread_set; /* boolean, has read callback been set to non-NULL? */
1282 int is_fwrite_set; /* boolean, has write callback been set to non-NULL? */
1283 curl_progress_callback fprogress; /* function for progress information */
1284 curl_debug_callback fdebug; /* function that write informational data */
1285 curl_ioctl_callback ioctl_func; /* function for I/O control */
1286 curl_sockopt_callback fsockopt; /* function for setting socket options */
1287 void *sockopt_client; /* pointer to pass to the socket options callback */
1288 curl_opensocket_callback fopensocket; /* function for checking/translating
1289 the address and opening the socket */
1290 void* opensocket_client;
1292 void *seek_client; /* pointer to pass to the seek callback */
1293 /* the 3 curl_conv_callback functions below are used on non-ASCII hosts */
1294 /* function to convert from the network encoding: */
1295 curl_conv_callback convfromnetwork;
1296 /* function to convert to the network encoding: */
1297 curl_conv_callback convtonetwork;
1298 /* function to convert from UTF-8 encoding: */
1299 curl_conv_callback convfromutf8;
1301 void *progress_client; /* pointer to pass to the progress callback */
1302 void *ioctl_client; /* pointer to pass to the ioctl callback */
1303 long timeout; /* in milliseconds, 0 means no timeout */
1304 long connecttimeout; /* in milliseconds, 0 means no timeout */
1305 long server_response_timeout; /* in milliseconds, 0 means no timeout */
1306 long tftp_blksize ; /* in bytes, 0 means use default */
1307 curl_off_t infilesize; /* size of file to upload, -1 means unknown */
1308 long low_speed_limit; /* bytes/second */
1309 long low_speed_time; /* number of seconds */
1310 curl_off_t max_send_speed; /* high speed limit in bytes/second for upload */
1311 curl_off_t max_recv_speed; /* high speed limit in bytes/second for download */
1312 curl_off_t set_resume_from; /* continue [ftp] transfer from here */
1313 struct curl_slist *headers; /* linked list of extra headers */
1314 struct curl_httppost *httppost; /* linked list of POST data */
1315 bool cookiesession; /* new cookie session? */
1316 bool crlf; /* convert crlf on ftp upload(?) */
1317 struct curl_slist *quote; /* after connection is established */
1318 struct curl_slist *postquote; /* after the transfer */
1319 struct curl_slist *prequote; /* before the transfer, after type */
1320 struct curl_slist *source_quote; /* 3rd party quote */
1321 struct curl_slist *source_prequote; /* in 3rd party transfer mode - before
1322 the transfer on source host */
1323 struct curl_slist *source_postquote; /* in 3rd party transfer mode - after
1324 the transfer on source host */
1325 struct curl_slist *telnet_options; /* linked list of telnet options */
1326 curl_TimeCond timecondition; /* kind of time/date comparison */
1327 time_t timevalue; /* what time to compare with */
1328 Curl_HttpReq httpreq; /* what kind of HTTP request (if any) is this */
1329 long httpversion; /* when non-zero, a specific HTTP version requested to
1330 be used in the library's request(s) */
1331 struct ssl_config_data ssl; /* user defined SSL stuff */
1332 curl_proxytype proxytype; /* what kind of proxy that is in use */
1333 long dns_cache_timeout; /* DNS cache timeout */
1334 long buffer_size; /* size of receive buffer to use */
1335 void *private_data; /* application-private data */
1337 struct Curl_one_easy *one_easy; /* When adding an easy handle to a multi
1338 handle, an internal 'Curl_one_easy'
1339 struct is created and this is a pointer
1340 to the particular struct associated with
1341 this SessionHandle */
1343 struct curl_slist *http200aliases; /* linked list of aliases for http200 */
1345 long ip_version; /* the CURL_IPRESOLVE_* defines in the public header file
1346 0 - whatever, 1 - v2, 2 - v6 */
1348 curl_off_t max_filesize; /* Maximum file size to download */
1350 curl_ftpfile ftp_filemethod; /* how to get to a file when FTP is used */
1352 int ftp_create_missing_dirs; /* 1 - create directories that don't exist
1353 2 - the same but also allow MKD to fail once
1356 curl_sshkeycallback ssh_keyfunc; /* key matching callback */
1357 void *ssh_keyfunc_userp; /* custom pointer to callback */
1359 /* Here follows boolean settings that define how to behave during
1360 this session. They are STATIC, set by libcurl users or at least initially
1361 and they don't change during operations. */
1363 bool printhost; /* printing host name in debug info */
1364 bool get_filetime; /* get the time and get of the remote file */
1365 bool tunnel_thru_httpproxy; /* use CONNECT through a HTTP proxy */
1366 bool prefer_ascii; /* ASCII rather than binary */
1367 bool ftp_append; /* append, not overwrite, on upload */
1368 bool ftp_list_only; /* switch FTP command for listing directories */
1369 bool ftp_use_port; /* use the FTP PORT command */
1370 bool hide_progress; /* don't use the progress meter */
1371 bool http_fail_on_error; /* fail on HTTP error codes >= 300 */
1372 bool http_follow_location; /* follow HTTP redirects */
1373 bool http_disable_hostname_check_before_authentication;
1374 bool include_header; /* include received protocol headers in data output */
1375 bool http_set_referer; /* is a custom referer used */
1376 bool http_auto_referer; /* set "correct" referer when following location: */
1377 bool opt_no_body; /* as set with CURLOPT_NO_BODY */
1378 bool set_port; /* custom port number used */
1379 bool upload; /* upload request */
1380 enum CURL_NETRC_OPTION
1381 use_netrc; /* defined in include/curl.h */
1382 bool verbose; /* output verbosity */
1383 bool krb; /* kerberos connection requested */
1384 bool reuse_forbid; /* forbidden to be reused, close after use */
1385 bool reuse_fresh; /* do not re-use an existing connection */
1386 bool ftp_use_epsv; /* if EPSV is to be attempted or not */
1387 bool ftp_use_eprt; /* if EPRT is to be attempted or not */
1388 bool ftp_use_pret; /* if PRET is to be used before PASV or not */
1390 curl_usessl ftp_ssl; /* if AUTH TLS is to be attempted etc, for FTP or
1391 IMAP or POP3 or others! */
1392 curl_ftpauth ftpsslauth; /* what AUTH XXX to be attempted */
1393 curl_ftpccc ftp_ccc; /* FTP CCC options */
1394 bool no_signal; /* do not use any signal/alarm handler */
1395 bool global_dns_cache; /* subject for future removal */
1396 bool tcp_nodelay; /* whether to enable TCP_NODELAY or not */
1397 bool ignorecl; /* ignore content length */
1398 bool ftp_skip_ip; /* skip the IP address the FTP server passes on to
1400 bool connect_only; /* make connection, let application use the socket */
1401 long ssh_auth_types; /* allowed SSH auth types */
1402 bool http_te_skip; /* pass the raw body data to the user, even when
1403 transfer-encoded (chunked, compressed) */
1404 bool http_ce_skip; /* pass the raw body data to the user, even when
1405 content-encoded (chunked, compressed) */
1406 long new_file_perms; /* Permissions to use when creating remote files */
1407 long new_directory_perms; /* Permissions to use when creating remote dirs */
1408 bool proxy_transfer_mode; /* set transfer mode (;type=<a|i>) when doing FTP
1409 via an HTTP proxy */
1410 char *str[STRING_LAST]; /* array of strings, pointing to allocated memory */
1411 unsigned int scope; /* address scope for IPv6 */
1412 long allowed_protocols;
1413 long redir_protocols;
1414 #if defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)
1415 long socks5_gssapi_nec; /* flag to support nec socks5 server */
1417 struct curl_slist *mail_rcpt; /* linked list of mail recipients */
1418 /* Common RTSP header options */
1419 Curl_RtspReq rtspreq; /* RTSP request type */
1420 long rtspversion; /* like httpversion, for RTSP */
1421 bool wildcardmatch; /* enable wildcard matching */
1422 curl_chunk_bgn_callback chunk_bgn; /* called before part of transfer starts */
1423 curl_chunk_end_callback chunk_end; /* called after part transferring
1425 curl_fnmatch_callback fnmatch; /* callback to decide which file corresponds
1426 to pattern (e.g. if WILDCARDMATCH is on) */
1431 struct curl_hash *hostcache;
1433 HCACHE_NONE, /* not pointing to anything */
1434 HCACHE_PRIVATE, /* points to our own */
1435 HCACHE_GLOBAL, /* points to the (shrug) global one */
1436 HCACHE_MULTI, /* points to a shared one in the multi handle */
1437 HCACHE_SHARED /* points to a shared one in a shared object */
1442 * The 'connectdata' struct MUST have all the connection oriented stuff as we
1443 * may have several simultaneous connections and connection structs in memory.
1445 * The 'struct UserDefined' must only contain data that is set once to go for
1446 * many (perhaps) independent connections. Values that are generated or
1447 * calculated internally for the "session handle" must be defined within the
1448 * 'struct UrlState' instead.
1451 struct SessionHandle {
1453 struct Curl_multi *multi; /* if non-NULL, points to the multi handle
1454 struct to which this "belongs" */
1455 struct Curl_one_easy *multi_pos; /* if non-NULL, points to its position
1456 in multi controlling structure to assist
1458 struct Curl_share *share; /* Share, handles global variable mutexing */
1459 struct SingleRequest req; /* Request-specific data */
1460 struct UserDefined set; /* values set by the libcurl user */
1461 struct DynamicStatic change; /* possibly modified userdefined data */
1462 struct CookieInfo *cookies; /* the cookies, read from files and servers.
1463 NOTE that the 'cookie' field in the
1464 UserDefined struct defines if the "engine"
1465 is to be used or not. */
1466 struct Progress progress; /* for all the progress meter data */
1467 struct UrlState state; /* struct for fields used for state info and
1468 other dynamic purposes */
1469 struct WildcardData wildcard; /* wildcard download state info */
1470 struct PureInfo info; /* stats, reports and info data */
1471 #if defined(CURL_DOES_CONVERSIONS) && defined(HAVE_ICONV)
1472 iconv_t outbound_cd; /* for translating to the network encoding */
1473 iconv_t inbound_cd; /* for translating from the network encoding */
1474 iconv_t utf8_cd; /* for translating to UTF8 */
1475 #endif /* CURL_DOES_CONVERSIONS && HAVE_ICONV */
1476 unsigned int magic; /* set to a CURLEASY_MAGIC_NUMBER */
1479 #define LIBCURL_NAME "libcurl"
projects / platform / upstream / curl.git / blob