1 #ifndef HEADER_CURL_URLDATA_H
2 #define HEADER_CURL_URLDATA_H
3 /***************************************************************************
5 * Project ___| | | | _ \| |
7 * | (__| |_| | _ <| |___
8 * \___|\___/|_| \_\_____|
10 * Copyright (C) 1998 - 2012, 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
49 #define PORT_GOPHER 70
51 #define DICT_MATCH "/MATCH:"
52 #define DICT_MATCH2 "/M:"
53 #define DICT_MATCH3 "/FIND:"
54 #define DICT_DEFINE "/DEFINE:"
55 #define DICT_DEFINE2 "/D:"
56 #define DICT_DEFINE3 "/LOOKUP:"
58 #define CURL_DEFAULT_USER "anonymous"
59 #define CURL_DEFAULT_PASSWORD "ftp@example.com"
61 /* length of longest IPv6 address string including the trailing null */
62 #define MAX_IPADR_LEN sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255")
64 /* Default FTP/IMAP etc response timeout in milliseconds.
65 Symbian OS panics when given a timeout much greater than 1/2 hour.
67 #define RESP_TIMEOUT (1800*1000)
74 #include <openssl/rsa.h>
75 #include <openssl/crypto.h>
76 #include <openssl/x509.h>
77 #include <openssl/pem.h>
78 #include <openssl/ssl.h>
79 #include <openssl/err.h>
80 #ifdef HAVE_OPENSSL_ENGINE_H
81 #include <openssl/engine.h>
83 #ifdef HAVE_OPENSSL_PKCS12_H
84 #include <openssl/pkcs12.h>
86 #else /* SSLeay-style includes */
93 #ifdef HAVE_OPENSSL_ENGINE_H
96 #ifdef HAVE_OPENSSL_PKCS12_H
99 #endif /* USE_OPENSSL */
101 #error Configuration error; cannot use GnuTLS *and* OpenSSL.
103 #endif /* USE_SSLEAY */
106 #include <gnutls/gnutls.h>
110 #include <polarssl/havege.h>
111 #include <polarssl/ssl.h>
115 #include <cyassl/openssl/ssl.h>
128 #include <axTLS/ssl.h>
132 #endif /* USE_AXTLS */
134 #ifdef HAVE_NETINET_IN_H
135 #include <netinet/in.h>
141 #include <zlib.h> /* for content-encoding */
143 /* zlib pollutes the namespace with this definition */
148 #include <curl/curl.h>
150 #include "http_chunks.h" /* for the structs and enum stuff */
163 #include "wildcard.h"
168 # elif defined HAVE_GSSMIT
169 # include <gssapi/gssapi.h>
170 # include <gssapi/gssapi_generic.h>
176 #ifdef HAVE_LIBSSH2_H
178 #include <libssh2_sftp.h>
179 #endif /* HAVE_LIBSSH2_H */
181 /* Download buffer size, keep it fairly big for speed reasons */
183 #define BUFSIZE CURL_MAX_WRITE_SIZE
185 /* Initial size of the buffer to store headers in, it'll be enlarged in case
187 #define HEADERSIZE 256
189 #define CURLEASY_MAGIC_NUMBER 0xc0dedbadU
191 /* Some convenience macros to get the larger/smaller value out of two given.
192 We prefix with CURL to prevent name collisions. */
193 #define CURLMAX(x,y) ((x)>(y)?(x):(y))
194 #define CURLMIN(x,y) ((x)<(y)?(x):(y))
197 #if defined(HAVE_KRB4) || defined(HAVE_GSSAPI)
198 /* Types needed for krb4/5-ftp connections */
206 enum protection_level {
207 PROT_NONE, /* first in list */
213 PROT_LAST /* last in list */
217 /* enum for the nonblocking SSL connection state machine */
221 ssl_connect_2_reading,
222 ssl_connect_2_writing,
229 ssl_connection_negotiating,
230 ssl_connection_complete
231 } ssl_connection_state;
233 /* struct for data related to each SSL connection */
234 struct ssl_connect_data {
235 /* Use ssl encrypted communications TRUE/FALSE, not necessarily using it atm
236 but at least asked to or meaning to use it. See 'state' for the exact
237 current state of the connection. */
239 ssl_connection_state state;
241 /* these ones requires specific SSL-types */
245 ssl_connect_state connecting_state;
246 #endif /* USE_SSLEAY */
248 gnutls_session session;
249 gnutls_certificate_credentials cred;
251 gnutls_srp_client_credentials srp_client_cred;
253 ssl_connect_state connecting_state;
254 #endif /* USE_GNUTLS */
264 ssl_connect_state connecting_state;
265 #endif /* USE_POLARSSL */
269 ssl_connect_state connecting_state;
270 #endif /* USE_CYASSL */
273 char *client_nickname;
274 struct SessionHandle *data;
275 struct curl_llist *obj_list;
276 PK11GenericObject *obj_clicert;
280 #endif /* USE_QSOSSL */
284 #endif /* USE_AXTLS */
287 struct ssl_config_data {
288 long version; /* what version the client wants to use */
289 long certverifyresult; /* result from the certificate verification */
290 long verifypeer; /* set TRUE if this is desired */
291 long verifyhost; /* 0: no verify
292 1: check that CN exists
293 2: CN must match hostname */
294 char *CApath; /* certificate dir (doesn't work on windows) */
295 char *CAfile; /* certificate to verify peer against */
296 const char *CRLfile; /* CRL to check certificate revocation */
297 const char *issuercert;/* optional issuer certificate filename */
298 char *random_file; /* path to file containing "random" data */
299 char *egdsocket; /* path to file containing the EGD daemon socket */
300 char *cipher_list; /* list of ciphers to use */
301 size_t max_ssl_sessions; /* SSL session id cache size */
302 curl_ssl_ctx_callback fsslctx; /* function to initialize ssl ctx */
303 void *fsslctxp; /* parameter for call back */
304 bool sessionid; /* cache session IDs or not */
305 bool certinfo; /* gather lots of certificate info */
308 char *username; /* TLS username (for, e.g., SRP) */
309 char *password; /* TLS password (for, e.g., SRP) */
310 enum CURL_TLSAUTH authtype; /* TLS authentication type (default SRP) */
314 /* information stored about one single SSL session */
315 struct curl_ssl_session {
316 char *name; /* host name for which this ID was used */
317 void *sessionid; /* as returned from the SSL layer */
318 size_t idsize; /* if known, otherwise 0 */
319 long age; /* just a number, the higher the more recent */
320 unsigned short remote_port; /* remote port to connect to */
321 struct ssl_config_data ssl_config; /* setup for this session */
324 /* Struct used for Digest challenge-response authentication */
330 bool stale; /* set true for re-negotiation */
334 int nc; /* nounce count */
345 #ifdef USE_WINDOWS_SSPI
346 #include "curl_sspi.h"
349 #if defined(CURL_DOES_CONVERSIONS) && defined(HAVE_ICONV)
353 /* Struct used for NTLM challenge-response authentication */
356 #ifdef USE_WINDOWS_SSPI
359 SEC_WINNT_AUTH_IDENTITY identity;
360 SEC_WINNT_AUTH_IDENTITY *p_identity;
363 unsigned long n_type_2;
366 unsigned char nonce[8];
370 #ifdef USE_HTTP_NEGOTIATE
371 struct negotiatedata {
372 /* when doing Negotiate we first need to receive an auth token and then we
373 need to send our header */
374 enum { GSS_AUTHNONE, GSS_AUTHRECV, GSS_AUTHSENT } state;
375 bool gss; /* Whether we're processing GSS-Negotiate or Negotiate */
376 const char* protocol; /* "GSS-Negotiate" or "Negotiate" */
379 gss_ctx_id_t context;
380 gss_name_t server_name;
381 gss_buffer_desc output_token;
383 #ifdef USE_WINDOWS_SSPI
386 CredHandle *credentials;
387 char server_name[1024];
388 size_t max_token_length;
390 size_t output_token_length;
398 * Boolean values that concerns this connection.
401 bool close; /* if set, we close the connection after this request */
402 bool reuse; /* if set, this is a re-used connection */
403 bool proxy; /* if set, this transfer is done through a proxy - any type */
404 bool httpproxy; /* if set, this transfer is done through a http proxy */
405 bool user_passwd; /* do we use user+password for this connection? */
406 bool proxy_user_passwd; /* user+password for the proxy? */
407 bool ipv6_ip; /* we communicate with a remote site specified with pure IPv6
409 bool ipv6; /* we communicate with a site using an IPv6 address */
411 bool do_more; /* this is set TRUE if the ->curl_do_more() function is
412 supposed to be called, after ->curl_do() */
413 bool tcpconnect[2]; /* the TCP layer (or similar) is connected, this is set
414 the first time on the first connect function call */
415 bool protoconnstart;/* the protocol layer has STARTED its operation after
416 the TCP layer connect */
418 bool retry; /* this connection is about to get closed and then
419 re-attempted at another connection. */
420 bool tunnel_proxy; /* if CONNECT is used to "tunnel" through the proxy.
421 This is implicit when SSL-protocols are used through
422 proxies, but can also be enabled explicitly by
424 bool authneg; /* TRUE when the auth phase has started, which means
425 that we are creating a request with an auth header,
426 but it is not the final request in the auth
428 bool rewindaftersend;/* TRUE when the sending couldn't be stopped even
429 though it will be discarded. When the whole send
430 operation is done, we must call the data rewind
432 bool ftp_use_epsv; /* As set with CURLOPT_FTP_USE_EPSV, but if we find out
433 EPSV doesn't work we disable it for the forthcoming
436 bool ftp_use_eprt; /* As set with CURLOPT_FTP_USE_EPRT, but if we find out
437 EPRT doesn't work we disable it for the forthcoming
439 bool netrc; /* name+password provided by netrc */
440 bool userpwd_in_url; /* name+password found in url */
442 bool done; /* set to FALSE when Curl_do() is called and set to TRUE
443 when Curl_done() is called, to prevent Curl_done() to
444 get invoked twice when the multi interface is
446 bool stream_was_rewound; /* Indicates that the stream was rewound after a
447 request read past the end of its response byte
449 bool proxy_connect_closed; /* set true if a proxy disconnected the
450 connection in a CONNECT request with auth, so
451 that libcurl should reconnect and continue. */
452 bool bound; /* set true if bind() has already been done on this socket/
454 bool type_set; /* type= was used in the URL */
458 char *rawalloc; /* allocated "raw" version of the name */
459 char *encalloc; /* allocated IDN-encoded version of the name */
460 char *name; /* name to use internally, might be encoded, might be raw */
461 const char *dispname; /* name to display, as 'name' might be encoded */
465 * Flags on the keepon member of the Curl_transfer_keeper
469 #define KEEP_RECV (1<<0) /* there is or may be data to read */
470 #define KEEP_SEND (1<<1) /* there is or may be data to write */
471 #define KEEP_RECV_HOLD (1<<2) /* when set, no reading should be done but there
472 might still be data to read */
473 #define KEEP_SEND_HOLD (1<<3) /* when set, no writing should be done but there
474 might still be data to write */
475 #define KEEP_RECV_PAUSE (1<<4) /* reading is paused */
476 #define KEEP_SEND_PAUSE (1<<5) /* writing is paused */
478 #define KEEP_RECVBITS (KEEP_RECV | KEEP_RECV_HOLD | KEEP_RECV_PAUSE)
479 #define KEEP_SENDBITS (KEEP_SEND | KEEP_SEND_HOLD | KEEP_SEND_PAUSE)
484 ZLIB_UNINIT, /* uninitialized */
485 ZLIB_INIT, /* initialized */
486 ZLIB_GZIP_HEADER, /* reading gzip header */
487 ZLIB_GZIP_INFLATING, /* inflating gzip stream */
488 ZLIB_INIT_GZIP /* initialized in transparent gzip mode */
492 #ifdef CURLRES_ASYNCH
496 struct Curl_dns_entry *dns;
497 bool done; /* set TRUE when the lookup is complete */
498 int status; /* if done is TRUE, this is the status from the callback */
499 void *os_specific; /* 'struct thread_data' for Windows */
503 #define FIRSTSOCKET 0
504 #define SECONDARYSOCKET 1
506 /* These function pointer types are here only to allow easier typecasting
507 within the source when we need to cast between data pointers (such as NULL)
508 and function pointers. */
509 typedef CURLcode (*Curl_do_more_func)(struct connectdata *, bool *);
510 typedef CURLcode (*Curl_done_func)(struct connectdata *, CURLcode, bool);
514 EXP100_SEND_DATA, /* enough waiting, just send the body now */
515 EXP100_AWAITING_CONTINUE, /* waiting for the 100 Continue header */
516 EXP100_SENDING_REQUEST, /* still sending the request but will wait for
517 the 100 header once done with the request */
518 EXP100_FAILED /* used on 417 Expectation Failed */
522 * Request specific data in the easy handle (SessionHandle). Previously,
523 * these members were on the connectdata struct but since a conn struct may
524 * now be shared between different SessionHandles, we store connection-specific
525 * data here. This struct only keeps stuff that's interesting for *this*
526 * request, as it will be cleared between multiple ones
528 struct SingleRequest {
529 curl_off_t size; /* -1 if unknown at this point */
530 curl_off_t *bytecountp; /* return number of bytes read or NULL */
532 curl_off_t maxdownload; /* in bytes, the maximum amount of data to fetch,
533 -1 means unlimited */
534 curl_off_t *writebytecountp; /* return number of bytes written or NULL */
536 curl_off_t bytecount; /* total number of bytes read */
537 curl_off_t writebytecount; /* number of bytes written */
539 long headerbytecount; /* only count received headers */
540 long deductheadercount; /* this amount of bytes doesn't count when we check
541 if anything has been transferred at the end of a
542 connection. We use this counter to make only a
543 100 reply (without a following second response
544 code) result in a CURLE_GOT_NOTHING error code */
546 struct timeval start; /* transfer started at this time */
547 struct timeval now; /* current time */
548 bool header; /* incoming data has HTTP header */
550 HEADER_NORMAL, /* no bad header at all */
551 HEADER_PARTHEADER, /* part of the chunk is a bad header, the rest
553 HEADER_ALLBAD /* all was believed to be header */
554 } badheader; /* the header was deemed bad and will be
556 int headerline; /* counts header lines to better track the
558 char *hbufp; /* points at *end* of header line */
560 char *str; /* within buf */
561 char *str_start; /* within buf */
562 char *end_ptr; /* within buf */
563 char *p; /* within headerbuff */
564 bool content_range; /* set TRUE if Content-Range: was found */
565 curl_off_t offset; /* possible resume offset read from the
566 Content-Range: header */
567 int httpcode; /* error code from the 'HTTP/1.? XXX' or
568 'RTSP/1.? XXX' line */
569 struct timeval start100; /* time stamp to wait for the 100 code from */
570 enum expect100 exp100; /* expect 100 continue state */
572 int auto_decoding; /* What content encoding. sec 3.5, RFC2616. */
574 #define IDENTITY 0 /* No encoding */
575 #define DEFLATE 1 /* zlib deflate [RFC 1950 & 1951] */
576 #define GZIP 2 /* gzip algorithm [RFC 1952] */
577 #define COMPRESS 3 /* Not handled, added for completeness */
580 zlibInitState zlib_init; /* possible zlib init state;
581 undefined if Content-Encoding header. */
582 z_stream z; /* State structure for zlib. */
594 bool upload_done; /* set to TRUE when doing chunked transfer-encoding upload
595 and we're uploading the last chunk */
597 bool ignorebody; /* we read a response-body but we ignore it! */
598 bool ignorecl; /* This HTTP response has no body so we ignore the Content-
601 char *location; /* This points to an allocated version of the Location:
603 char *newurl; /* Set to the new URL to use when a redirect or a retry is
606 /* 'upload_present' is used to keep a byte counter of how much data there is
607 still left in the buffer, aimed for upload. */
608 ssize_t upload_present;
610 /* 'upload_fromhere' is used as a read-pointer when we uploaded parts of a
611 buffer, so the next read should read from where this pointer points to,
612 and the 'upload_present' contains the number of bytes available at this
614 char *upload_fromhere;
616 bool chunk; /* if set, this is a chunked transfer-encoding */
617 bool upload_chunky; /* set TRUE if we are doing chunked transfer-encoding
619 bool getheader; /* TRUE if header parsing is wanted */
621 bool forbidchunk; /* used only to explicitly forbid chunk-upload for
622 specific upload buffers. See readmoredata() in
623 http.c for details. */
627 * Specific protocol handler.
630 struct Curl_handler {
631 const char * scheme; /* URL scheme name. */
633 /* Complement to setup_connection_internals(). */
634 CURLcode (*setup_connection)(struct connectdata *);
636 /* These two functions MUST be set to be protocol dependent */
637 CURLcode (*do_it)(struct connectdata *, bool *done);
640 /* If the curl_do() function is better made in two halves, this
641 * curl_do_more() function will be called afterwards, if set. For example
642 * for doing the FTP stuff after the PASV/PORT command.
644 Curl_do_more_func do_more;
646 /* This function *MAY* be set to a protocol-dependent function that is run
647 * after the connect() and everything is done, as a step in the connection.
648 * The 'done' pointer points to a bool that should be set to TRUE if the
649 * function completes before return. If it doesn't complete, the caller
650 * should call the curl_connecting() function until it is.
652 CURLcode (*connect_it)(struct connectdata *, bool *done);
654 /* See above. Currently only used for FTP. */
655 CURLcode (*connecting)(struct connectdata *, bool *done);
656 CURLcode (*doing)(struct connectdata *, bool *done);
658 /* Called from the multi interface during the PROTOCONNECT phase, and it
659 should then return a proper fd set */
660 int (*proto_getsock)(struct connectdata *conn,
661 curl_socket_t *socks,
664 /* Called from the multi interface during the DOING phase, and it should
665 then return a proper fd set */
666 int (*doing_getsock)(struct connectdata *conn,
667 curl_socket_t *socks,
670 /* Called from the multi interface during the DO_MORE phase, and it should
671 then return a proper fd set */
672 int (*domore_getsock)(struct connectdata *conn,
673 curl_socket_t *socks,
676 /* Called from the multi interface during the DO_DONE, PERFORM and
677 WAITPERFORM phases, and it should then return a proper fd set. Not setting
678 this will make libcurl use the generic default one. */
679 int (*perform_getsock)(const struct connectdata *conn,
680 curl_socket_t *socks,
683 /* This function *MAY* be set to a protocol-dependent function that is run
684 * by the curl_disconnect(), as a step in the disconnection. If the handler
685 * is called because the connection has been considered dead, dead_connection
688 CURLcode (*disconnect)(struct connectdata *, bool dead_connection);
690 /* If used, this function gets called from transfer.c:readwrite_data() to
691 allow the protocol to do extra reads/writes */
692 CURLcode (*readwrite)(struct SessionHandle *data, struct connectdata *conn,
693 ssize_t *nread, bool *readmore);
695 long defport; /* Default port. */
696 unsigned int protocol; /* See CURLPROTO_* */
697 unsigned int flags; /* Extra particular characteristics, see PROTOPT_* */
700 #define PROTOPT_NONE 0 /* nothing extra */
701 #define PROTOPT_SSL (1<<0) /* uses SSL */
702 #define PROTOPT_DUAL (1<<1) /* this protocol uses two connections */
703 #define PROTOPT_CLOSEACTION (1<<2) /* need action before socket close */
704 /* some protocols will have to call the underlying functions without regard to
705 what exact state the socket signals. IE even if the socket says "readable",
706 the send function might need to be called while uploading, or vice versa.
708 #define PROTOPT_DIRLOCK (1<<3)
709 #define PROTOPT_NONETWORK (1<<4) /* protocol doesn't use the network! */
710 #define PROTOPT_NEEDSPWD (1<<5) /* needs a password, and if none is set it
712 #define PROTOPT_NOURLQUERY (1<<6) /* protocol can't handle
713 url query strings (?foo=bar) ! */
716 /* return the count of bytes sent, or -1 on error */
717 typedef ssize_t (Curl_send)(struct connectdata *conn, /* connection data */
718 int sockindex, /* socketindex */
719 const void *buf, /* data to write */
720 size_t len, /* max amount to write */
721 CURLcode *err); /* error to return */
723 /* return the count of bytes read, or -1 on error */
724 typedef ssize_t (Curl_recv)(struct connectdata *conn, /* connection data */
725 int sockindex, /* socketindex */
726 char *buf, /* store data here */
727 size_t len, /* max amount to read */
728 CURLcode *err); /* error to return */
731 * The connectdata struct contains all fields and variables that should be
732 * unique for an entire connection.
735 /* 'data' is the CURRENT SessionHandle using this connection -- take great
736 caution that this might very well vary between different times this
737 connection is used! */
738 struct SessionHandle *data;
740 /* chunk is for HTTP chunked encoding, but is in the general connectdata
741 struct only because we can do just about any protocol through a HTTP proxy
742 and a HTTP proxy may in fact respond using chunked encoding */
743 struct Curl_chunker chunk;
745 curl_closesocket_callback fclosesocket; /* function closing the socket(s) */
746 void *closesocket_client;
748 bool inuse; /* This is a marker for the connection cache logic. If this is
749 TRUE this handle is being used by an easy handle and cannot
750 be used by any other easy handle without careful
751 consideration (== only for pipelining). */
753 /**** Fields set when inited and not modified again */
754 long connectindex; /* what index in the connection cache connects index this
755 particular struct has */
757 /* 'dns_entry' is the particular host we use. This points to an entry in the
758 DNS cache and it will not get pruned while locked. It gets unlocked in
759 Curl_done(). This entry will be NULL if the connection is re-used as then
760 there is no name resolve done. */
761 struct Curl_dns_entry *dns_entry;
763 /* 'ip_addr' is the particular IP we connected to. It points to a struct
764 within the DNS cache, so this pointer is only valid as long as the DNS
765 cache entry remains locked. It gets unlocked in Curl_done() */
766 Curl_addrinfo *ip_addr;
768 /* 'ip_addr_str' is the ip_addr data as a human readable string.
769 It remains available as long as the connection does, which is longer than
770 the ip_addr itself. */
771 char ip_addr_str[MAX_IPADR_LEN];
773 unsigned int scope; /* address scope for IPv6 */
775 int socktype; /* SOCK_STREAM or SOCK_DGRAM */
777 struct hostname host;
778 struct hostname proxy;
780 long port; /* which port to use locally */
781 unsigned short remote_port; /* what remote port to connect to,
782 not the proxy port! */
784 /* 'primary_ip' and 'primary_port' get filled with peer's numerical
785 ip address and port number whenever an outgoing connection is
786 *attempted* from the primary socket to a remote address. When more
787 than one address is tried for a connection these will hold data
788 for the last attempt. When the connection is actually established
789 these are updated with data which comes directly from the socket. */
791 char primary_ip[MAX_IPADR_LEN];
794 /* 'local_ip' and 'local_port' get filled with local's numerical
795 ip address and port number whenever an outgoing connection is
796 **established** from the primary socket to a remote address. */
798 char local_ip[MAX_IPADR_LEN];
801 char *user; /* user name string, allocated */
802 char *passwd; /* password string, allocated */
804 char *proxyuser; /* proxy user name string, allocated */
805 char *proxypasswd; /* proxy password string, allocated */
806 curl_proxytype proxytype; /* what kind of proxy that is in use */
808 int httpversion; /* the HTTP version*10 reported by the server */
809 int rtspversion; /* the RTSP version*10 reported by the server */
811 struct timeval now; /* "current" time */
812 struct timeval created; /* creation time */
813 curl_socket_t sock[2]; /* two sockets, the second is used for the data
814 transfer when doing FTP */
815 bool sock_accepted[2]; /* TRUE if the socket on this index was created with
820 struct ssl_connect_data ssl[2]; /* this is for ssl-stuff */
821 struct ssl_config_data ssl_config;
823 struct ConnectBits bits; /* various state-flags for this connection */
825 /* connecttime: when connect() is called on the current IP address. Used to
826 be able to track when to move on to try next IP - but only when the multi
827 interface is used. */
828 struct timeval connecttime;
829 /* The two fields below get set in Curl_connecthost */
830 int num_addr; /* number of addresses to try to connect to */
831 long timeoutms_per_addr; /* how long time in milliseconds to spend on
832 trying to connect to each IP address */
834 const struct Curl_handler *handler; /* Connection's protocol handler */
835 const struct Curl_handler *given; /* The protocol first given */
837 long ip_version; /* copied from the SessionHandle at creation time */
839 /**** curl_get() phase fields */
841 curl_socket_t sockfd; /* socket to read from or CURL_SOCKET_BAD */
842 curl_socket_t writesockfd; /* socket to write to, it may very
843 well be the same we read from.
844 CURL_SOCKET_BAD disables */
846 /** Dynamicly allocated strings, MUST be freed before this **/
847 /** struct is killed. **/
848 struct dynamically_allocated_data {
851 char *accept_encoding;
857 char *rtsp_transport;
858 char *te; /* TE: request header */
861 int sec_complete; /* if kerberos is enabled for this connection */
862 #if defined(HAVE_KRB4) || defined(HAVE_GSSAPI)
863 enum protection_level command_prot;
864 enum protection_level data_prot;
865 enum protection_level request_data_prot;
867 struct krb4buffer in_buffer;
869 const struct Curl_sec_client_mech *mech;
870 struct sockaddr_in local_addr;
873 /* the two following *_inuse fields are only flags, not counters in any way.
874 If TRUE it means the channel is in use, and if FALSE it means the channel
875 is up for grabs by one. */
877 bool readchannel_inuse; /* whether the read channel is in use by an easy
879 bool writechannel_inuse; /* whether the write channel is in use by an easy
881 bool server_supports_pipelining; /* TRUE if server supports pipelining,
882 set after first response */
884 struct curl_llist *send_pipe; /* List of handles waiting to
885 send on this pipeline */
886 struct curl_llist *recv_pipe; /* List of handles waiting to read
887 their responses on this pipeline */
888 struct curl_llist *pend_pipe; /* List of pending handles on
890 struct curl_llist *done_pipe; /* Handles that are finished, but
891 still reference this connectdata */
892 #define MAX_PIPELINE_LENGTH 5
894 char* master_buffer; /* The master buffer allocated on-demand;
895 used for pipelining. */
896 size_t read_pos; /* Current read position in the master buffer */
897 size_t buf_len; /* Length of the buffer?? */
900 curl_seek_callback seek_func; /* function that seeks the input */
901 void *seek_client; /* pointer to pass to the seek() above */
903 /*************** Request - specific items ************/
905 /* previously this was in the urldata struct */
906 curl_read_callback fread_func; /* function that reads the input */
907 void *fread_in; /* pointer to pass to the fread() above */
909 struct ntlmdata ntlm; /* NTLM differs from other authentication schemes
910 because it authenticates connections, not
912 struct ntlmdata proxyntlm; /* NTLM data for proxy */
914 #if defined(USE_NTLM) && defined(NTLM_WB_ENABLED)
915 /* used for communication with Samba's winbind daemon helper ntlm_auth */
916 curl_socket_t ntlm_auth_hlpr_socket;
917 pid_t ntlm_auth_hlpr_pid;
918 char* challenge_header;
919 char* response_header;
922 char syserr_buf [256]; /* buffer for Curl_strerror() */
924 #ifdef CURLRES_ASYNCH
925 /* data used for the asynch name resolve callback */
926 struct Curl_async async;
929 /* These three are used for chunked-encoding trailer support */
930 char *trailer; /* allocated buffer to store trailer in */
931 int trlMax; /* allocated buffer size */
932 int trlPos; /* index of where to store data */
935 struct ftp_conn ftpc;
936 struct ssh_conn sshc;
937 struct tftp_state_data *tftpc;
938 struct imap_conn imapc;
939 struct pop3_conn pop3c;
940 struct smtp_conn smtpc;
941 struct rtsp_conn rtspc;
945 int cselect_bits; /* bitmask of socket events */
946 int waitfor; /* current READ/WRITE bits to wait for */
948 #if defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)
949 int socks5_gssapi_enctype;
955 /* When this connection is created, store the conditions for the local end
956 bind. This is stored before the actual bind and before any connection is
957 made and will serve the purpose of being used for comparison reasons so
958 that subsequent bound-requested connections aren't accidentally re-using
959 wrong connections. */
961 unsigned short localport;
964 /* tunnel as in tunnel through a HTTP proxy with CONNECT */
966 TUNNEL_INIT, /* init/default/no tunnel state */
967 TUNNEL_CONNECT, /* CONNECT has been sent off */
968 TUNNEL_COMPLETE /* CONNECT response received completely */
969 } tunnel_state[2]; /* two separate ones to allow FTP */
972 /* The end of connectdata. */
975 * Struct to keep statistical and informational data.
978 int httpcode; /* Recent HTTP, FTP, or RTSP response code */
979 int httpproxycode; /* response code from proxy when received separate */
980 int httpversion; /* the http version number X.Y = X*10+Y */
981 long filetime; /* If requested, this is might get set. Set to -1 if the time
982 was unretrievable. We cannot have this of type time_t,
983 since time_t is unsigned on several platforms such as
985 bool timecond; /* set to TRUE if the time condition didn't match, which
986 thus made the document NOT get fetched */
987 long header_size; /* size of read header(s) in bytes */
988 long request_size; /* the amount of bytes sent in the request(s) */
989 unsigned long proxyauthavail; /* what proxy auth types were announced */
990 unsigned long httpauthavail; /* what host auth types were announced */
991 long numconnects; /* how many new connection did libcurl created */
992 char *contenttype; /* the content type of the object */
993 char *wouldredirect; /* URL this would've been redirected to if asked to */
995 /* PureInfo members 'conn_primary_ip', 'conn_primary_port', 'conn_local_ip'
996 and, 'conn_local_port' are copied over from the connectdata struct in
997 order to allow curl_easy_getinfo() to return this information even when
998 the session handle is no longer associated with a connection, and also
999 allow curl_easy_reset() to clear this information from the session handle
1000 without disturbing information which is still alive, and that might be
1001 reused, in the connection cache. */
1003 char conn_primary_ip[MAX_IPADR_LEN];
1004 long conn_primary_port;
1006 char conn_local_ip[MAX_IPADR_LEN];
1007 long conn_local_port;
1009 struct curl_certinfo certs; /* info about the certs, only populated in
1010 OpenSSL builds. Asked for with
1011 CURLOPT_CERTINFO / CURLINFO_CERTINFO */
1016 long lastshow; /* time() of the last displayed progress meter or NULL to
1017 force redraw at next call */
1018 curl_off_t size_dl; /* total expected size */
1019 curl_off_t size_ul; /* total expected size */
1020 curl_off_t downloaded; /* transferred so far */
1021 curl_off_t uploaded; /* transferred so far */
1023 curl_off_t current_speed; /* uses the currently fastest transfer */
1025 bool callback; /* set when progress callback is used */
1026 int width; /* screen width at download start */
1027 int flags; /* see progress.h */
1036 double t_appconnect;
1037 double t_pretransfer;
1038 double t_starttransfer;
1041 struct timeval start;
1042 struct timeval t_startsingle;
1043 struct timeval t_acceptdata;
1044 #define CURR_TIME (5+1) /* 6 entries for 5 seconds */
1046 curl_off_t speeder[ CURR_TIME ];
1047 struct timeval speeder_time[ CURR_TIME ];
1052 HTTPREQ_NONE, /* first in list */
1055 HTTPREQ_POST_FORM, /* we make a difference internally */
1059 HTTPREQ_LAST /* last in list */
1063 RTSPREQ_NONE, /* first in list */
1071 RTSPREQ_GET_PARAMETER,
1072 RTSPREQ_SET_PARAMETER,
1075 RTSPREQ_LAST /* last in list */
1079 * Values that are generated, temporary or calculated internally for a
1080 * "session handle" must be defined within the 'struct UrlState'. This struct
1081 * will be used within the SessionHandle struct. When the 'SessionHandle'
1082 * struct is cloned, this data MUST NOT be copied.
1084 * Remember that any "state" information goes globally for the curl handle.
1085 * Session-data MUST be put in the connectdata struct and here. */
1086 #define MAX_CURL_USER_LENGTH 256
1087 #define MAX_CURL_PASSWORD_LENGTH 256
1088 #define MAX_CURL_USER_LENGTH_TXT "255"
1089 #define MAX_CURL_PASSWORD_LENGTH_TXT "255"
1092 unsigned long want; /* Bitmask set to the authentication methods wanted by
1093 app (with CURLOPT_HTTPAUTH or CURLOPT_PROXYAUTH). */
1094 unsigned long picked;
1095 unsigned long avail; /* Bitmask for what the server reports to support for
1097 bool done; /* TRUE when the auth phase is done and ready to do the *actual*
1099 bool multi; /* TRUE if this is not yet authenticated but within the auth
1100 multipass negotiation */
1101 bool iestyle; /* TRUE if digest should be done IE-style or FALSE if it should
1106 /* 'connects' will be an allocated array with pointers. If the pointer is
1107 set, it holds an allocated connection. */
1108 struct connectdata **connects;
1109 long num; /* number of entries of the 'connects' array */
1111 CONNCACHE_PRIVATE, /* used for an easy handle alone */
1112 CONNCACHE_MULTI /* shared within a multi handle */
1124 struct conncache *connc; /* points to the connection cache this handle
1127 /* buffers to store authentication data in, as parsed from input options */
1128 struct timeval keeps_speed; /* for the progress meter really */
1130 long lastconnect; /* index of most recent connect or -1 if undefined */
1132 char *headerbuff; /* allocated buffer to store headers in */
1133 size_t headersize; /* size of the allocation */
1135 char buffer[BUFSIZE+1]; /* download buffer */
1136 char uploadbuffer[BUFSIZE+1]; /* upload buffer */
1137 curl_off_t current_speed; /* the ProgressShow() funcion sets this,
1139 bool this_is_a_follow; /* this is a followed Location: request */
1141 char *first_host; /* if set, this should be the host name that we will
1142 sent authorization to, no else. Used to make Location:
1143 following not keep sending user+password... This is
1146 struct curl_ssl_session *session; /* array of 'max_ssl_sessions' size */
1147 long sessionage; /* number of the most recent session */
1148 char *tempwrite; /* allocated buffer to keep data in when a write
1149 callback returns to make the connection paused */
1150 size_t tempwritesize; /* size of the 'tempwrite' allocated buffer */
1151 int tempwritetype; /* type of the 'tempwrite' buffer as a bitmask that is
1152 used with Curl_client_write() */
1153 char *scratch; /* huge buffer[BUFSIZE*2] when doing upload CRLF replacing */
1154 bool errorbuf; /* Set to TRUE if the error buffer is already filled in.
1155 This must be set to FALSE every time _easy_perform() is
1157 int os_errno; /* filled in with errno whenever an error occurs */
1159 /* storage for the previous bag^H^H^HSIGPIPE signal handler :-) */
1160 void (*prev_signal)(int sig);
1162 bool allow_port; /* Is set.use_port allowed to take effect or not. This
1163 is always set TRUE when curl_easy_perform() is called. */
1164 struct digestdata digest; /* state data for host Digest auth */
1165 struct digestdata proxydigest; /* state data for proxy Digest auth */
1167 #ifdef USE_HTTP_NEGOTIATE
1168 struct negotiatedata negotiate; /* state data for host Negotiate auth */
1169 struct negotiatedata proxyneg; /* state data for proxy Negotiate auth */
1172 struct auth authhost; /* auth details for host */
1173 struct auth authproxy; /* auth details for proxy */
1175 bool authproblem; /* TRUE if there's some problem authenticating */
1177 void *resolver; /* resolver state, if it is used in the URL state -
1178 ares_channel f.e. */
1180 #if defined(USE_SSLEAY) && defined(HAVE_OPENSSL_ENGINE_H)
1182 #endif /* USE_SSLEAY */
1183 struct timeval expiretime; /* set this with Curl_expire() only */
1184 struct Curl_tree timenode; /* for the splay stuff */
1185 struct curl_llist *timeoutlist; /* list of pending timeouts */
1187 /* a place to store the most recently set FTP entrypath */
1188 char *most_recent_ftp_entrypath;
1190 /* set after initial USER failure, to prevent an authentication loop */
1191 bool ftp_trying_alternative;
1193 int httpversion; /* the lowest HTTP version*10 reported by any server
1194 involved in this request */
1195 bool expect100header; /* TRUE if we added Expect: 100-continue */
1197 bool pipe_broke; /* TRUE if the connection we were pipelined on broke
1198 and we need to restart from the beginning */
1200 #if !defined(WIN32) && !defined(MSDOS) && !defined(__EMX__) && \
1201 !defined(__SYMBIAN32__)
1202 /* do FTP line-end conversions on most platforms */
1203 #define CURL_DO_LINEEND_CONV
1204 /* for FTP downloads: track CRLF sequences that span blocks */
1205 bool prev_block_had_trailing_cr;
1206 /* for FTP downloads: how many CRLFs did we converted to LFs? */
1207 curl_off_t crlf_conversions;
1209 /* If set to non-NULL, there's a connection in a shared connection cache
1210 that uses this handle so we can't kill this SessionHandle just yet but
1211 must keep it around and add it to the list of handles to kill once all
1212 its connections are gone */
1214 bool closed; /* set to TRUE when curl_easy_cleanup() has been called on this
1215 handle, but it is kept around as mentioned for
1217 char *pathbuffer;/* allocated buffer to store the URL's path part in */
1218 char *path; /* path to use, points to somewhere within the pathbuffer
1220 bool slash_removed; /* set TRUE if the 'path' points to a path where the
1221 initial URL slash separator has been taken off */
1223 bool rangestringalloc; /* the range string is malloc()'ed */
1225 char *range; /* range, if used. See README for detailed specification on
1227 curl_off_t resume_from; /* continue [ftp] transfer from here */
1229 /* This RTSP state information survives requests and connections */
1230 long rtsp_next_client_CSeq; /* the session's next client CSeq */
1231 long rtsp_next_server_CSeq; /* the session's next server CSeq */
1232 long rtsp_CSeq_recv; /* most recent CSeq received */
1234 /* Protocol specific data.
1236 *************************************************************************
1237 * Note that this data will be REMOVED after each request, so anything that
1238 * should be kept/stored on a per-connection basis and thus live for the
1239 * next request on the same connection MUST be put in the connectdata struct!
1240 *************************************************************************/
1243 struct HTTP *https; /* alias, just for the sake of being more readable */
1246 /* void *tftp; not used */
1247 struct FILEPROTO *file;
1248 void *telnet; /* private for telnet.c-eyes only */
1250 struct SSHPROTO *ssh;
1255 /* current user of this SessionHandle instance, or NULL */
1256 struct connectdata *current_conn;
1258 /* if true, force SSL connection retry (workaround for certain servers) */
1259 bool ssl_connect_retry;
1264 * This 'DynamicStatic' struct defines dynamic states that actually change
1265 * values in the 'UserDefined' area, which MUST be taken into consideration
1266 * if the UserDefined struct is cloned or similar. You can probably just
1267 * copy these, but each one indicate a special action on other data.
1270 struct DynamicStatic {
1271 char *url; /* work URL, copied from UserDefined */
1272 bool url_alloc; /* URL string is malloc()'ed */
1273 char *referer; /* referer string */
1274 bool referer_alloc; /* referer sting is malloc()ed */
1275 struct curl_slist *cookielist; /* list of cookie files set by
1276 curl_easy_setopt(COOKIEFILE) calls */
1277 struct curl_slist *resolve; /* set to point to the set.resolve list when
1278 this should be dealt with in pretransfer */
1282 * This 'UserDefined' struct must only contain data that is set once to go
1283 * for many (perhaps) independent connections. Values that are generated or
1284 * calculated internally for the "session handle" MUST be defined within the
1285 * 'struct UrlState' instead. The only exceptions MUST note the changes in
1286 * the 'DynamicStatic' struct.
1287 * Character pointer fields point to dynamic storage, unless otherwise stated.
1289 struct Curl_one_easy; /* declared and used only in multi.c */
1290 struct Curl_multi; /* declared and used only in multi.c */
1293 STRING_CERT, /* client certificate file name */
1294 STRING_CERT_TYPE, /* format for certificate (default: PEM)*/
1295 STRING_COOKIE, /* HTTP cookie string to send */
1296 STRING_COOKIEJAR, /* dump all cookies to this file */
1297 STRING_CUSTOMREQUEST, /* HTTP/FTP/RTSP request/method to use */
1298 STRING_DEVICE, /* local network interface/address to use */
1299 STRING_ENCODING, /* Accept-Encoding string */
1300 STRING_FTP_ACCOUNT, /* ftp account data */
1301 STRING_FTP_ALTERNATIVE_TO_USER, /* command to send if USER/PASS fails */
1302 STRING_FTPPORT, /* port to send with the FTP PORT command */
1303 STRING_KEY, /* private key file name */
1304 STRING_KEY_PASSWD, /* plain text private key password */
1305 STRING_KEY_TYPE, /* format for private key (default: PEM) */
1306 STRING_KRB_LEVEL, /* krb security level */
1307 STRING_NETRC_FILE, /* if not NULL, use this instead of trying to find
1309 STRING_COPYPOSTFIELDS, /* if POST, set the fields' values here */
1310 STRING_PROXY, /* proxy to use */
1311 STRING_SET_RANGE, /* range, if used */
1312 STRING_SET_REFERER, /* custom string for the HTTP referer field */
1313 STRING_SET_URL, /* what original URL to work on */
1314 STRING_SSL_CAPATH, /* CA directory name (doesn't work on windows) */
1315 STRING_SSL_CAFILE, /* certificate file to verify peer against */
1316 STRING_SSL_CIPHER_LIST, /* list of ciphers to use */
1317 STRING_SSL_EGDSOCKET, /* path to file containing the EGD daemon socket */
1318 STRING_SSL_RANDOM_FILE, /* path to file containing "random" data */
1319 STRING_USERAGENT, /* User-Agent string */
1320 STRING_SSL_CRLFILE, /* crl file to check certificate */
1321 STRING_SSL_ISSUERCERT, /* issuer cert file to check certificate */
1322 STRING_USERNAME, /* <username>, if used */
1323 STRING_PASSWORD, /* <password>, if used */
1324 STRING_PROXYUSERNAME, /* Proxy <username>, if used */
1325 STRING_PROXYPASSWORD, /* Proxy <password>, if used */
1326 STRING_NOPROXY, /* List of hosts which should not use the proxy, if
1328 STRING_RTSP_SESSION_ID, /* Session ID to use */
1329 STRING_RTSP_STREAM_URI, /* Stream URI for this request */
1330 STRING_RTSP_TRANSPORT, /* Transport for this session */
1332 STRING_SSH_PRIVATE_KEY, /* path to the private key file for auth */
1333 STRING_SSH_PUBLIC_KEY, /* path to the public key file for auth */
1334 STRING_SSH_HOST_PUBLIC_KEY_MD5, /* md5 of host public key in ascii hex */
1335 STRING_SSH_KNOWNHOSTS, /* file name of knownhosts file */
1337 #if defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)
1338 STRING_SOCKS5_GSSAPI_SERVICE, /* GSSAPI service name */
1344 STRING_TLSAUTH_USERNAME, /* TLS auth <username> */
1345 STRING_TLSAUTH_PASSWORD, /* TLS auth <password> */
1348 /* -- end of strings -- */
1349 STRING_LAST /* not used, just an end-of-list marker */
1352 struct UserDefined {
1353 FILE *err; /* the stderr user data goes here */
1354 void *debugdata; /* the data that will be passed to fdebug */
1355 char *errorbuffer; /* (Static) store failure messages in here */
1356 long proxyport; /* If non-zero, use this port number by default. If the
1357 proxy string features a ":[port]" that one will override
1359 void *out; /* the fetched file goes here */
1360 void *in; /* the uploaded file is read from here */
1361 void *writeheader; /* write the header to this if non-NULL */
1362 void *rtp_out; /* write RTP to this if non-NULL */
1363 long use_port; /* which port to use (when not using default) */
1364 unsigned long httpauth; /* kind of HTTP authentication to use (bitmask) */
1365 unsigned long proxyauth; /* kind of proxy authentication to use (bitmask) */
1366 long followlocation; /* as in HTTP Location: */
1367 long maxredirs; /* maximum no. of http(s) redirects to follow, set to -1
1370 int keep_post; /* keep POSTs as POSTs after a 30x request; each
1371 bit represents a request, from 301 to 303 */
1372 bool free_referer; /* set TRUE if 'referer' points to a string we
1374 void *postfields; /* if POST, set the fields' values here */
1375 curl_seek_callback seek_func; /* function that seeks the input */
1376 curl_off_t postfieldsize; /* if POST, this might have a size to use instead
1377 of strlen(), and then the data *may* be binary
1378 (contain zero bytes) */
1379 unsigned short localport; /* local port number to bind to */
1380 int localportrange; /* number of additional port numbers to test in case the
1381 'localport' one can't be bind()ed */
1382 curl_write_callback fwrite_func; /* function that stores the output */
1383 curl_write_callback fwrite_header; /* function that stores headers */
1384 curl_write_callback fwrite_rtp; /* function that stores interleaved RTP */
1385 curl_read_callback fread_func; /* function that reads the input */
1386 int is_fread_set; /* boolean, has read callback been set to non-NULL? */
1387 int is_fwrite_set; /* boolean, has write callback been set to non-NULL? */
1388 curl_progress_callback fprogress; /* function for progress information */
1389 curl_debug_callback fdebug; /* function that write informational data */
1390 curl_ioctl_callback ioctl_func; /* function for I/O control */
1391 curl_sockopt_callback fsockopt; /* function for setting socket options */
1392 void *sockopt_client; /* pointer to pass to the socket options callback */
1393 curl_opensocket_callback fopensocket; /* function for checking/translating
1394 the address and opening the
1396 void* opensocket_client;
1397 curl_closesocket_callback fclosesocket; /* function for closing the
1399 void* closesocket_client;
1401 void *seek_client; /* pointer to pass to the seek callback */
1402 /* the 3 curl_conv_callback functions below are used on non-ASCII hosts */
1403 /* function to convert from the network encoding: */
1404 curl_conv_callback convfromnetwork;
1405 /* function to convert to the network encoding: */
1406 curl_conv_callback convtonetwork;
1407 /* function to convert from UTF-8 encoding: */
1408 curl_conv_callback convfromutf8;
1410 void *progress_client; /* pointer to pass to the progress callback */
1411 void *ioctl_client; /* pointer to pass to the ioctl callback */
1412 long timeout; /* in milliseconds, 0 means no timeout */
1413 long connecttimeout; /* in milliseconds, 0 means no timeout */
1414 long accepttimeout; /* in milliseconds, 0 means no timeout */
1415 long server_response_timeout; /* in milliseconds, 0 means no timeout */
1416 long tftp_blksize ; /* in bytes, 0 means use default */
1417 curl_off_t infilesize; /* size of file to upload, -1 means unknown */
1418 long low_speed_limit; /* bytes/second */
1419 long low_speed_time; /* number of seconds */
1420 curl_off_t max_send_speed; /* high speed limit in bytes/second for upload */
1421 curl_off_t max_recv_speed; /* high speed limit in bytes/second for
1423 curl_off_t set_resume_from; /* continue [ftp] transfer from here */
1424 struct curl_slist *headers; /* linked list of extra headers */
1425 struct curl_httppost *httppost; /* linked list of POST data */
1426 bool cookiesession; /* new cookie session? */
1427 bool crlf; /* convert crlf on ftp upload(?) */
1428 struct curl_slist *quote; /* after connection is established */
1429 struct curl_slist *postquote; /* after the transfer */
1430 struct curl_slist *prequote; /* before the transfer, after type */
1431 struct curl_slist *source_quote; /* 3rd party quote */
1432 struct curl_slist *source_prequote; /* in 3rd party transfer mode - before
1433 the transfer on source host */
1434 struct curl_slist *source_postquote; /* in 3rd party transfer mode - after
1435 the transfer on source host */
1436 struct curl_slist *telnet_options; /* linked list of telnet options */
1437 struct curl_slist *resolve; /* list of names to add/remove from
1439 curl_TimeCond timecondition; /* kind of time/date comparison */
1440 time_t timevalue; /* what time to compare with */
1441 Curl_HttpReq httpreq; /* what kind of HTTP request (if any) is this */
1442 long httpversion; /* when non-zero, a specific HTTP version requested to
1443 be used in the library's request(s) */
1444 struct ssl_config_data ssl; /* user defined SSL stuff */
1445 curl_proxytype proxytype; /* what kind of proxy that is in use */
1446 long dns_cache_timeout; /* DNS cache timeout */
1447 long buffer_size; /* size of receive buffer to use */
1448 void *private_data; /* application-private data */
1450 struct Curl_one_easy *one_easy; /* When adding an easy handle to a multi
1451 handle, an internal 'Curl_one_easy'
1452 struct is created and this is a pointer
1453 to the particular struct associated with
1454 this SessionHandle */
1456 struct curl_slist *http200aliases; /* linked list of aliases for http200 */
1458 long ipver; /* the CURL_IPRESOLVE_* defines in the public header file
1459 0 - whatever, 1 - v2, 2 - v6 */
1461 curl_off_t max_filesize; /* Maximum file size to download */
1463 curl_ftpfile ftp_filemethod; /* how to get to a file when FTP is used */
1465 int ftp_create_missing_dirs; /* 1 - create directories that don't exist
1466 2 - the same but also allow MKD to fail once
1469 curl_sshkeycallback ssh_keyfunc; /* key matching callback */
1470 void *ssh_keyfunc_userp; /* custom pointer to callback */
1472 /* Here follows boolean settings that define how to behave during
1473 this session. They are STATIC, set by libcurl users or at least initially
1474 and they don't change during operations. */
1476 bool printhost; /* printing host name in debug info */
1477 bool get_filetime; /* get the time and get of the remote file */
1478 bool tunnel_thru_httpproxy; /* use CONNECT through a HTTP proxy */
1479 bool prefer_ascii; /* ASCII rather than binary */
1480 bool ftp_append; /* append, not overwrite, on upload */
1481 bool ftp_list_only; /* switch FTP command for listing directories */
1482 bool ftp_use_port; /* use the FTP PORT command */
1483 bool hide_progress; /* don't use the progress meter */
1484 bool http_fail_on_error; /* fail on HTTP error codes >= 300 */
1485 bool http_follow_location; /* follow HTTP redirects */
1486 bool http_transfer_encoding; /* request compressed HTTP transfer-encoding */
1487 bool http_disable_hostname_check_before_authentication;
1488 bool include_header; /* include received protocol headers in data output */
1489 bool http_set_referer; /* is a custom referer used */
1490 bool http_auto_referer; /* set "correct" referer when following location: */
1491 bool opt_no_body; /* as set with CURLOPT_NO_BODY */
1492 bool set_port; /* custom port number used */
1493 bool upload; /* upload request */
1494 enum CURL_NETRC_OPTION
1495 use_netrc; /* defined in include/curl.h */
1496 bool verbose; /* output verbosity */
1497 bool krb; /* kerberos connection requested */
1498 bool reuse_forbid; /* forbidden to be reused, close after use */
1499 bool reuse_fresh; /* do not re-use an existing connection */
1500 bool ftp_use_epsv; /* if EPSV is to be attempted or not */
1501 bool ftp_use_eprt; /* if EPRT is to be attempted or not */
1502 bool ftp_use_pret; /* if PRET is to be used before PASV or not */
1504 curl_usessl use_ssl; /* if AUTH TLS is to be attempted etc, for FTP or
1505 IMAP or POP3 or others! */
1506 curl_ftpauth ftpsslauth; /* what AUTH XXX to be attempted */
1507 curl_ftpccc ftp_ccc; /* FTP CCC options */
1508 bool no_signal; /* do not use any signal/alarm handler */
1509 bool global_dns_cache; /* subject for future removal */
1510 bool tcp_nodelay; /* whether to enable TCP_NODELAY or not */
1511 bool ignorecl; /* ignore content length */
1512 bool ftp_skip_ip; /* skip the IP address the FTP server passes on to
1514 bool connect_only; /* make connection, let application use the socket */
1515 bool ssl_enable_beast; /* especially allow this flaw for interoperability's
1517 long ssh_auth_types; /* allowed SSH auth types */
1518 bool http_te_skip; /* pass the raw body data to the user, even when
1519 transfer-encoded (chunked, compressed) */
1520 bool http_ce_skip; /* pass the raw body data to the user, even when
1521 content-encoded (chunked, compressed) */
1522 long new_file_perms; /* Permissions to use when creating remote files */
1523 long new_directory_perms; /* Permissions to use when creating remote dirs */
1524 bool proxy_transfer_mode; /* set transfer mode (;type=<a|i>) when doing FTP
1525 via an HTTP proxy */
1526 char *str[STRING_LAST]; /* array of strings, pointing to allocated memory */
1527 unsigned int scope; /* address scope for IPv6 */
1528 long allowed_protocols;
1529 long redir_protocols;
1530 #if defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)
1531 long socks5_gssapi_nec; /* flag to support nec socks5 server */
1533 struct curl_slist *mail_rcpt; /* linked list of mail recipients */
1534 /* Common RTSP header options */
1535 Curl_RtspReq rtspreq; /* RTSP request type */
1536 long rtspversion; /* like httpversion, for RTSP */
1537 bool wildcardmatch; /* enable wildcard matching */
1538 curl_chunk_bgn_callback chunk_bgn; /* called before part of transfer
1540 curl_chunk_end_callback chunk_end; /* called after part transferring
1542 curl_fnmatch_callback fnmatch; /* callback to decide which file corresponds
1543 to pattern (e.g. if WILDCARDMATCH is on) */
1546 long gssapi_delegation; /* GSSAPI credential delegation, see the
1547 documentation of CURLOPT_GSSAPI_DELEGATION */
1549 bool tcp_keepalive; /* use TCP keepalives */
1550 long tcp_keepidle; /* seconds in idle before sending keepalive probe */
1551 long tcp_keepintvl; /* seconds between TCP keepalive probes */
1555 struct curl_hash *hostcache;
1557 HCACHE_NONE, /* not pointing to anything */
1558 HCACHE_PRIVATE, /* points to our own */
1559 HCACHE_GLOBAL, /* points to the (shrug) global one */
1560 HCACHE_MULTI, /* points to a shared one in the multi handle */
1561 HCACHE_SHARED /* points to a shared one in a shared object */
1566 * The 'connectdata' struct MUST have all the connection oriented stuff as we
1567 * may have several simultaneous connections and connection structs in memory.
1569 * The 'struct UserDefined' must only contain data that is set once to go for
1570 * many (perhaps) independent connections. Values that are generated or
1571 * calculated internally for the "session handle" must be defined within the
1572 * 'struct UrlState' instead.
1575 struct SessionHandle {
1577 struct Curl_multi *multi; /* if non-NULL, points to the multi handle
1578 struct to which this "belongs" */
1579 struct Curl_one_easy *multi_pos; /* if non-NULL, points to its position
1580 in multi controlling structure to assist
1582 struct Curl_share *share; /* Share, handles global variable mutexing */
1583 struct SingleRequest req; /* Request-specific data */
1584 struct UserDefined set; /* values set by the libcurl user */
1585 struct DynamicStatic change; /* possibly modified userdefined data */
1586 struct CookieInfo *cookies; /* the cookies, read from files and servers.
1587 NOTE that the 'cookie' field in the
1588 UserDefined struct defines if the "engine"
1589 is to be used or not. */
1590 struct Progress progress; /* for all the progress meter data */
1591 struct UrlState state; /* struct for fields used for state info and
1592 other dynamic purposes */
1593 struct WildcardData wildcard; /* wildcard download state info */
1594 struct PureInfo info; /* stats, reports and info data */
1595 #if defined(CURL_DOES_CONVERSIONS) && defined(HAVE_ICONV)
1596 iconv_t outbound_cd; /* for translating to the network encoding */
1597 iconv_t inbound_cd; /* for translating from the network encoding */
1598 iconv_t utf8_cd; /* for translating to UTF8 */
1599 #endif /* CURL_DOES_CONVERSIONS && HAVE_ICONV */
1600 unsigned int magic; /* set to a CURLEASY_MAGIC_NUMBER */
1603 #define LIBCURL_NAME "libcurl"
1605 #endif /* HEADER_CURL_URLDATA_H */
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