urldata.h

     wrong connections. */
  char *localdev;
  unsigned short localport;
  int localportrange;

  /* tunnel as in tunnel through a HTTP proxy with CONNECT */
  enum {
    TUNNEL_INIT,    /* init/default/no tunnel state */
    TUNNEL_CONNECT, /* CONNECT has been sent off */
    TUNNEL_COMPLETE /* CONNECT response received completely */
  } tunnel_state[2]; /* two separate ones to allow FTP */

   struct connectbundle *bundle; /* The bundle we are member of */
};

/* The end of connectdata. */

/*
 * Struct to keep statistical and informational data.
 */
struct PureInfo {
  int httpcode;  /* Recent HTTP, FTP, or RTSP response code */
  int httpproxycode; /* response code from proxy when received separate */
  int httpversion; /* the http version number X.Y = X*10+Y */
  long filetime; /* If requested, this is might get set. Set to -1 if the time
                    was unretrievable. We cannot have this of type time_t,
                    since time_t is unsigned on several platforms such as
                    OpenVMS. */
  bool timecond;  /* set to TRUE if the time condition didn't match, which
                     thus made the document NOT get fetched */
  long header_size;  /* size of read header(s) in bytes */
  long request_size; /* the amount of bytes sent in the request(s) */
  unsigned long proxyauthavail; /* what proxy auth types were announced */
  unsigned long httpauthavail;  /* what host auth types were announced */
  long numconnects; /* how many new connection did libcurl created */
  char *contenttype; /* the content type of the object */
  char *wouldredirect; /* URL this would've been redirected to if asked to */

  /* PureInfo members 'conn_primary_ip', 'conn_primary_port', 'conn_local_ip'
     and, 'conn_local_port' are copied over from the connectdata struct in
     order to allow curl_easy_getinfo() to return this information even when
     the session handle is no longer associated with a connection, and also
     allow curl_easy_reset() to clear this information from the session handle
     without disturbing information which is still alive, and that might be
     reused, in the connection cache. */

  char conn_primary_ip[MAX_IPADR_LEN];
  long conn_primary_port;

  char conn_local_ip[MAX_IPADR_LEN];
  long conn_local_port;

  struct curl_certinfo certs; /* info about the certs, only populated in
                                 OpenSSL builds. Asked for with
                                 CURLOPT_CERTINFO / CURLINFO_CERTINFO */
};


struct Progress {
  long lastshow; /* time() of the last displayed progress meter or NULL to
                    force redraw at next call */
  curl_off_t size_dl; /* total expected size */
  curl_off_t size_ul; /* total expected size */
  curl_off_t downloaded; /* transferred so far */
  curl_off_t uploaded; /* transferred so far */

  curl_off_t current_speed; /* uses the currently fastest transfer */

  bool callback;  /* set when progress callback is used */
  int width; /* screen width at download start */
  int flags; /* see progress.h */

  double timespent;

  curl_off_t dlspeed;
  curl_off_t ulspeed;

  double t_nslookup;
  double t_connect;
  double t_appconnect;
  double t_pretransfer;
  double t_starttransfer;
  double t_redirect;

  struct timeval start;
  struct timeval t_startsingle;
  struct timeval t_acceptdata;
#define CURR_TIME (5+1) /* 6 entries for 5 seconds */

  curl_off_t speeder[ CURR_TIME ];
  struct timeval speeder_time[ CURR_TIME ];
  int speeder_c;
};

typedef enum {
  HTTPREQ_NONE, /* first in list */
  HTTPREQ_GET,
  HTTPREQ_POST,
  HTTPREQ_POST_FORM, /* we make a difference internally */
  HTTPREQ_PUT,
  HTTPREQ_HEAD,
  HTTPREQ_CUSTOM,
  HTTPREQ_LAST /* last in list */
} Curl_HttpReq;

typedef enum {
    RTSPREQ_NONE, /* first in list */
    RTSPREQ_OPTIONS,
    RTSPREQ_DESCRIBE,
    RTSPREQ_ANNOUNCE,
    RTSPREQ_SETUP,
    RTSPREQ_PLAY,
    RTSPREQ_PAUSE,
    RTSPREQ_TEARDOWN,
    RTSPREQ_GET_PARAMETER,
    RTSPREQ_SET_PARAMETER,
    RTSPREQ_RECORD,
    RTSPREQ_RECEIVE,
    RTSPREQ_LAST /* last in list */
} Curl_RtspReq;

/*
 * Values that are generated, temporary or calculated internally for a
 * "session handle" must be defined within the 'struct UrlState'.  This struct
 * will be used within the SessionHandle struct. When the 'SessionHandle'
 * struct is cloned, this data MUST NOT be copied.
 *
 * Remember that any "state" information goes globally for the curl handle.
 * Session-data MUST be put in the connectdata struct and here.  */
#define MAX_CURL_USER_LENGTH 256
#define MAX_CURL_PASSWORD_LENGTH 256
#define MAX_CURL_USER_LENGTH_TXT "255"
#define MAX_CURL_PASSWORD_LENGTH_TXT "255"

struct auth {
  unsigned long want;  /* Bitmask set to the authentication methods wanted by
                          app (with CURLOPT_HTTPAUTH or CURLOPT_PROXYAUTH). */
  unsigned long picked;
  unsigned long avail; /* Bitmask for what the server reports to support for
                          this resource */
  bool done;  /* TRUE when the auth phase is done and ready to do the *actual*
                 request */
  bool multi; /* TRUE if this is not yet authenticated but within the auth
                 multipass negotiation */
  bool iestyle; /* TRUE if digest should be done IE-style or FALSE if it should
                   be RFC compliant */
};

struct UrlState {
  enum {
    Curl_if_none,
    Curl_if_easy,
    Curl_if_multi
  } used_interface;

  /* Points to the connection cache */
  struct conncache *conn_cache;

  /* buffers to store authentication data in, as parsed from input options */
  struct timeval keeps_speed; /* for the progress meter really */

  struct connectdata *pending_conn; /* This points to the connection we want
                                       to open when we are waiting in the
                                       CONNECT_PEND state in the multi
                                       interface. This to avoid recreating it
                                       when we enter the CONNECT state again.
                                    */

  struct connectdata *lastconnect; /* The last connection, NULL if undefined */

  char *headerbuff; /* allocated buffer to store headers in */
  size_t headersize;   /* size of the allocation */

  char buffer[BUFSIZE+1]; /* download buffer */
  char uploadbuffer[BUFSIZE+1]; /* upload buffer */
  curl_off_t current_speed;  /* the ProgressShow() funcion sets this,
                                bytes / second */
  bool this_is_a_follow; /* this is a followed Location: request */

  char *first_host; /* if set, this should be the host name that we will
                       sent authorization to, no else. Used to make Location:
                       following not keep sending user+password... This is
                       strdup() data.
                    */
  struct curl_ssl_session *session; /* array of 'max_ssl_sessions' size */
  long sessionage;                  /* number of the most recent session */
  char *tempwrite;      /* allocated buffer to keep data in when a write
                           callback returns to make the connection paused */
  size_t tempwritesize; /* size of the 'tempwrite' allocated buffer */
  int tempwritetype;    /* type of the 'tempwrite' buffer as a bitmask that is
                           used with Curl_client_write() */
  char *scratch; /* huge buffer[BUFSIZE*2] when doing upload CRLF replacing */
  bool errorbuf; /* Set to TRUE if the error buffer is already filled in.
                    This must be set to FALSE every time _easy_perform() is
                    called. */
  int os_errno;  /* filled in with errno whenever an error occurs */
#ifdef HAVE_SIGNAL
  /* storage for the previous bag^H^H^HSIGPIPE signal handler :-) */
  void (*prev_signal)(int sig);
#endif
  bool allow_port; /* Is set.use_port allowed to take effect or not. This
                      is always set TRUE when curl_easy_perform() is called. */
  struct digestdata digest;      /* state data for host Digest auth */
  struct digestdata proxydigest; /* state data for proxy Digest auth */

#ifdef USE_HTTP_NEGOTIATE
  struct negotiatedata negotiate; /* state data for host Negotiate auth */
  struct negotiatedata proxyneg; /* state data for proxy Negotiate auth */
#endif

  struct auth authhost;  /* auth details for host */
  struct auth authproxy; /* auth details for proxy */

  bool authproblem; /* TRUE if there's some problem authenticating */

  void *resolver; /* resolver state, if it is used in the URL state -
                     ares_channel f.e. */

#if defined(USE_SSLEAY) && defined(HAVE_OPENSSL_ENGINE_H)
  ENGINE *engine;
#endif /* USE_SSLEAY */
  struct timeval expiretime; /* set this with Curl_expire() only */
  struct Curl_tree timenode; /* for the splay stuff */
  struct curl_llist *timeoutlist; /* list of pending timeouts */

  /* a place to store the most recently set FTP entrypath */
  char *most_recent_ftp_entrypath;

  /* set after initial USER failure, to prevent an authentication loop */
  bool ftp_trying_alternative;

  int httpversion;       /* the lowest HTTP version*10 reported by any server
                            involved in this request */
  bool expect100header;  /* TRUE if we added Expect: 100-continue */

  bool pipe_broke; /* TRUE if the connection we were pipelined on broke
                      and we need to restart from the beginning */

#if !defined(WIN32) && !defined(MSDOS) && !defined(__EMX__) && \
    !defined(__SYMBIAN32__)
/* do FTP line-end conversions on most platforms */
#define CURL_DO_LINEEND_CONV
  /* for FTP downloads: track CRLF sequences that span blocks */
  bool prev_block_had_trailing_cr;
  /* for FTP downloads: how many CRLFs did we converted to LFs? */
  curl_off_t crlf_conversions;
#endif
  char *pathbuffer;/* allocated buffer to store the URL's path part in */
  char *path;      /* path to use, points to somewhere within the pathbuffer
                      area */
  bool slash_removed; /* set TRUE if the 'path' points to a path where the
                         initial URL slash separator has been taken off */
  bool use_range;
  bool rangestringalloc; /* the range string is malloc()'ed */

  char *range; /* range, if used. See README for detailed specification on
                  this syntax. */
  curl_off_t resume_from; /* continue [ftp] transfer from here */

  /* This RTSP state information survives requests and connections */
  long rtsp_next_client_CSeq; /* the session's next client CSeq */
  long rtsp_next_server_CSeq; /* the session's next server CSeq */
  long rtsp_CSeq_recv; /* most recent CSeq received */

  /* Protocol specific data.
   *
   *************************************************************************
   * Note that this data will be REMOVED after each request, so anything that
   * should be kept/stored on a per-connection basis and thus live for the
   * next request on the same connection MUST be put in the connectdata struct!
   *************************************************************************/
  union {
    struct HTTP *http;
    struct HTTP *https;  /* alias, just for the sake of being more readable */
    struct RTSP *rtsp;
    struct FTP *ftp;
    /* void *tftp;    not used */
    struct FILEPROTO *file;
    void *telnet;        /* private for telnet.c-eyes only */
    void *generic;
    struct SSHPROTO *ssh;
    struct FTP *imap;
    struct FTP *pop3;
    struct FTP *smtp;
  } proto;
  /* current user of this SessionHandle instance, or NULL */
  struct connectdata *current_conn;

  /* if true, force SSL connection retry (workaround for certain servers) */
  bool ssl_connect_retry;
};


/*
 * This 'DynamicStatic' struct defines dynamic states that actually change
 * values in the 'UserDefined' area, which MUST be taken into consideration
 * if the UserDefined struct is cloned or similar. You can probably just
 * copy these, but each one indicate a special action on other data.
 */

struct DynamicStatic {
  char *url;        /* work URL, copied from UserDefined */
  bool url_alloc;   /* URL string is malloc()'ed */
  char *referer;    /* referer string */
  bool referer_alloc; /* referer sting is malloc()ed */
  struct curl_slist *cookielist; /* list of cookie files set by
                                    curl_easy_setopt(COOKIEFILE) calls */
  struct curl_slist *resolve; /* set to point to the set.resolve list when
                                 this should be dealt with in pretransfer */
};

/*
 * This 'UserDefined' struct must only contain data that is set once to go
 * for many (perhaps) independent connections. Values that are generated or
 * calculated internally for the "session handle" MUST be defined within the
 * 'struct UrlState' instead. The only exceptions MUST note the changes in
 * the 'DynamicStatic' struct.
 * Character pointer fields point to dynamic storage, unless otherwise stated.
 */
struct Curl_one_easy; /* declared and used only in multi.c */
struct Curl_multi;    /* declared and used only in multi.c */

enum dupstring {
  STRING_CERT,            /* client certificate file name */
  STRING_CERT_TYPE,       /* format for certificate (default: PEM)*/
  STRING_COOKIE,          /* HTTP cookie string to send */
  STRING_COOKIEJAR,       /* dump all cookies to this file */
  STRING_CUSTOMREQUEST,   /* HTTP/FTP/RTSP request/method to use */
  STRING_DEVICE,          /* local network interface/address to use */
  STRING_ENCODING,        /* Accept-Encoding string */
  STRING_FTP_ACCOUNT,     /* ftp account data */
  STRING_FTP_ALTERNATIVE_TO_USER, /* command to send if USER/PASS fails */
  STRING_FTPPORT,         /* port to send with the FTP PORT command */
  STRING_KEY,             /* private key file name */
  STRING_KEY_PASSWD,      /* plain text private key password */
  STRING_KEY_TYPE,        /* format for private key (default: PEM) */
  STRING_KRB_LEVEL,       /* krb security level */
  STRING_NETRC_FILE,      /* if not NULL, use this instead of trying to find
                             $HOME/.netrc */
  STRING_COPYPOSTFIELDS,  /* if POST, set the fields' values here */
  STRING_PROXY,           /* proxy to use */
  STRING_SET_RANGE,       /* range, if used */
  STRING_SET_REFERER,     /* custom string for the HTTP referer field */
  STRING_SET_URL,         /* what original URL to work on */
  STRING_SSL_CAPATH,      /* CA directory name (doesn't work on windows) */
  STRING_SSL_CAFILE,      /* certificate file to verify peer against */
  STRING_SSL_CIPHER_LIST, /* list of ciphers to use */
  STRING_SSL_EGDSOCKET,   /* path to file containing the EGD daemon socket */
  STRING_SSL_RANDOM_FILE, /* path to file containing "random" data */
  STRING_USERAGENT,       /* User-Agent string */
  STRING_SSL_CRLFILE,     /* crl file to check certificate */
  STRING_SSL_ISSUERCERT,  /* issuer cert file to check certificate */
  STRING_USERNAME,        /* <username>, if used */
  STRING_PASSWORD,        /* <password>, if used */
  STRING_PROXYUSERNAME,   /* Proxy <username>, if used */
  STRING_PROXYPASSWORD,   /* Proxy <password>, if used */
  STRING_NOPROXY,         /* List of hosts which should not use the proxy, if
                             used */
  STRING_RTSP_SESSION_ID, /* Session ID to use */
  STRING_RTSP_STREAM_URI, /* Stream URI for this request */
  STRING_RTSP_TRANSPORT,  /* Transport for this session */
#ifdef USE_LIBSSH2
  STRING_SSH_PRIVATE_KEY, /* path to the private key file for auth */
  STRING_SSH_PUBLIC_KEY,  /* path to the public key file for auth */
  STRING_SSH_HOST_PUBLIC_KEY_MD5, /* md5 of host public key in ascii hex */
  STRING_SSH_KNOWNHOSTS,  /* file name of knownhosts file */
#endif
#if defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)
  STRING_SOCKS5_GSSAPI_SERVICE,  /* GSSAPI service name */
#endif
  STRING_MAIL_FROM,
  STRING_MAIL_AUTH,

#ifdef USE_TLS_SRP
  STRING_TLSAUTH_USERNAME,     /* TLS auth <username> */
  STRING_TLSAUTH_PASSWORD,     /* TLS auth <password> */
#endif

  /* -- end of strings -- */
  STRING_LAST /* not used, just an end-of-list marker */
};

struct UserDefined {
  FILE *err;         /* the stderr user data goes here */
  void *debugdata;   /* the data that will be passed to fdebug */
  char *errorbuffer; /* (Static) store failure messages in here */
  long proxyport; /* If non-zero, use this port number by default. If the
                     proxy string features a ":[port]" that one will override
                     this. */
  void *out;         /* the fetched file goes here */
  void *in;          /* the uploaded file is read from here */
  void *writeheader; /* write the header to this if non-NULL */
  void *rtp_out;     /* write RTP to this if non-NULL */
  long use_port;     /* which port to use (when not using default) */
  unsigned long httpauth;  /* kind of HTTP authentication to use (bitmask) */
  unsigned long proxyauth; /* kind of proxy authentication to use (bitmask) */
  long followlocation; /* as in HTTP Location: */
  long maxredirs;    /* maximum no. of http(s) redirects to follow, set to -1
                        for infinity */

  int keep_post;     /* keep POSTs as POSTs after a 30x request; each
                        bit represents a request, from 301 to 303 */
  bool free_referer; /* set TRUE if 'referer' points to a string we
                        allocated */
  void *postfields;  /* if POST, set the fields' values here */
  curl_seek_callback seek_func;      /* function that seeks the input */
  curl_off_t postfieldsize; /* if POST, this might have a size to use instead
                               of strlen(), and then the data *may* be binary
                               (contain zero bytes) */
  unsigned short localport; /* local port number to bind to */
  int localportrange; /* number of additional port numbers to test in case the
                         'localport' one can't be bind()ed */
  curl_write_callback fwrite_func;   /* function that stores the output */
  curl_write_callback fwrite_header; /* function that stores headers */
  curl_write_callback fwrite_rtp;    /* function that stores interleaved RTP */
  curl_read_callback fread_func;     /* function that reads the input */
  int is_fread_set; /* boolean, has read callback been set to non-NULL? */
  int is_fwrite_set; /* boolean, has write callback been set to non-NULL? */
  curl_progress_callback fprogress;  /* function for progress information */
  curl_debug_callback fdebug;      /* function that write informational data */
  curl_ioctl_callback ioctl_func;  /* function for I/O control */
  curl_sockopt_callback fsockopt;  /* function for setting socket options */
  void *sockopt_client; /* pointer to pass to the socket options callback */
  curl_opensocket_callback fopensocket; /* function for checking/translating
                                           the address and opening the
                                           socket */
  void* opensocket_client;
  curl_closesocket_callback fclosesocket; /* function for closing the
                                             socket */
  void* closesocket_client;

  void *seek_client;    /* pointer to pass to the seek callback */
  /* the 3 curl_conv_callback functions below are used on non-ASCII hosts */
  /* function to convert from the network encoding: */
  curl_conv_callback convfromnetwork;
  /* function to convert to the network encoding: */
  curl_conv_callback convtonetwork;
  /* function to convert from UTF-8 encoding: */
  curl_conv_callback convfromutf8;

  void *progress_client; /* pointer to pass to the progress callback */
  void *ioctl_client;   /* pointer to pass to the ioctl callback */
  long timeout;         /* in milliseconds, 0 means no timeout */
  long connecttimeout;  /* in milliseconds, 0 means no timeout */
  long accepttimeout;   /* in milliseconds, 0 means no timeout */
  long server_response_timeout; /* in milliseconds, 0 means no timeout */
  long tftp_blksize ; /* in bytes, 0 means use default */
  curl_off_t infilesize;      /* size of file to upload, -1 means unknown */
  long low_speed_limit; /* bytes/second */
  long low_speed_time;  /* number of seconds */
  curl_off_t max_send_speed; /* high speed limit in bytes/second for upload */
  curl_off_t max_recv_speed; /* high speed limit in bytes/second for
                                download */
  curl_off_t set_resume_from;  /* continue [ftp] transfer from here */
  struct curl_slist *headers; /* linked list of extra headers */
  struct curl_httppost *httppost;  /* linked list of POST data */
  bool cookiesession;   /* new cookie session? */
  bool crlf;            /* convert crlf on ftp upload(?) */
  struct curl_slist *quote;     /* after connection is established */
  struct curl_slist *postquote; /* after the transfer */
  struct curl_slist *prequote; /* before the transfer, after type */
  struct curl_slist *source_quote;  /* 3rd party quote */
  struct curl_slist *source_prequote;  /* in 3rd party transfer mode - before
                                          the transfer on source host */
  struct curl_slist *source_postquote; /* in 3rd party transfer mode - after
                                          the transfer on source host */
  struct curl_slist *telnet_options; /* linked list of telnet options */
  struct curl_slist *resolve;     /* list of names to add/remove from
                                     DNS cache */
  curl_TimeCond timecondition; /* kind of time/date comparison */
  time_t timevalue;       /* what time to compare with */
  Curl_HttpReq httpreq;   /* what kind of HTTP request (if any) is this */
  long httpversion; /* when non-zero, a specific HTTP version requested to
                       be used in the library's request(s) */
  struct ssl_config_data ssl;  /* user defined SSL stuff */
  curl_proxytype proxytype; /* what kind of proxy that is in use */
  long dns_cache_timeout; /* DNS cache timeout */
  long buffer_size;      /* size of receive buffer to use */
  void *private_data; /* application-private data */

  struct Curl_one_easy *one_easy; /* When adding an easy handle to a multi
                                     handle, an internal 'Curl_one_easy'
                                     struct is created and this is a pointer
                                     to the particular struct associated with
                                     this SessionHandle */

  struct curl_slist *http200aliases; /* linked list of aliases for http200 */

  long ipver; /* the CURL_IPRESOLVE_* defines in the public header file
                 0 - whatever, 1 - v2, 2 - v6 */

  curl_off_t max_filesize; /* Maximum file size to download */

  curl_ftpfile ftp_filemethod; /* how to get to a file when FTP is used  */

  int ftp_create_missing_dirs; /* 1 - create directories that don't exist
                                  2 - the same but also allow MKD to fail once
                               */

  curl_sshkeycallback ssh_keyfunc; /* key matching callback */
  void *ssh_keyfunc_userp;         /* custom pointer to callback */

/* Here follows boolean settings that define how to behave during
   this session. They are STATIC, set by libcurl users or at least initially
   and they don't change during operations. */

  bool printhost;        /* printing host name in debug info */
  bool get_filetime;     /* get the time and get of the remote file */
  bool tunnel_thru_httpproxy; /* use CONNECT through a HTTP proxy */
  bool prefer_ascii;     /* ASCII rather than binary */
  bool ftp_append;       /* append, not overwrite, on upload */
  bool ftp_list_only;    /* switch FTP command for listing directories */
  bool ftp_use_port;     /* use the FTP PORT command */
  bool hide_progress;    /* don't use the progress meter */
  bool http_fail_on_error;  /* fail on HTTP error codes >= 300 */
  bool http_follow_location; /* follow HTTP redirects */
  bool http_transfer_encoding; /* request compressed HTTP transfer-encoding */
  bool http_disable_hostname_check_before_authentication;
  bool include_header;   /* include received protocol headers in data output */
  bool http_set_referer; /* is a custom referer used */
  bool http_auto_referer; /* set "correct" referer when following location: */
  bool opt_no_body;      /* as set with CURLOPT_NO_BODY */
  bool set_port;         /* custom port number used */
  bool upload;           /* upload request */
  enum CURL_NETRC_OPTION
       use_netrc;        /* defined in include/curl.h */
  bool verbose;          /* output verbosity */
  bool krb;              /* kerberos connection requested */
  bool reuse_forbid;     /* forbidden to be reused, close after use */
  bool reuse_fresh;      /* do not re-use an existing connection  */
  bool ftp_use_epsv;     /* if EPSV is to be attempted or not */
  bool ftp_use_eprt;     /* if EPRT is to be attempted or not */
  bool ftp_use_pret;     /* if PRET is to be used before PASV or not */

  curl_usessl use_ssl;   /* if AUTH TLS is to be attempted etc, for FTP or
                            IMAP or POP3 or others! */
  curl_ftpauth ftpsslauth; /* what AUTH XXX to be attempted */
  curl_ftpccc ftp_ccc;   /* FTP CCC options */
  bool no_signal;        /* do not use any signal/alarm handler */
  bool global_dns_cache; /* subject for future removal */
  bool tcp_nodelay;      /* whether to enable TCP_NODELAY or not */
  bool ignorecl;         /* ignore content length */
  bool ftp_skip_ip;      /* skip the IP address the FTP server passes on to
                            us */
  bool connect_only;     /* make connection, let application use the socket */
  bool ssl_enable_beast; /* especially allow this flaw for interoperability's
                            sake*/
  long ssh_auth_types;   /* allowed SSH auth types */
  bool http_te_skip;     /* pass the raw body data to the user, even when
                            transfer-encoded (chunked, compressed) */
  bool http_ce_skip;     /* pass the raw body data to the user, even when
                            content-encoded (chunked, compressed) */
  long new_file_perms;    /* Permissions to use when creating remote files */
  long new_directory_perms; /* Permissions to use when creating remote dirs */
  bool proxy_transfer_mode; /* set transfer mode (;type=<a|i>) when doing FTP
                               via an HTTP proxy */
  char *str[STRING_LAST]; /* array of strings, pointing to allocated memory */
  unsigned int scope;    /* address scope for IPv6 */
  long allowed_protocols;
  long redir_protocols;
#if defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)
  long socks5_gssapi_nec; /* flag to support nec socks5 server */
#endif
  struct curl_slist *mail_rcpt; /* linked list of mail recipients */
  /* Common RTSP header options */
  Curl_RtspReq rtspreq; /* RTSP request type */
  long rtspversion; /* like httpversion, for RTSP */
  bool wildcardmatch; /* enable wildcard matching */
  curl_chunk_bgn_callback chunk_bgn; /* called before part of transfer
                                        starts */
  curl_chunk_end_callback chunk_end; /* called after part transferring
                                        stopped */
  curl_fnmatch_callback fnmatch; /* callback to decide which file corresponds
                                    to pattern (e.g. if WILDCARDMATCH is on) */
  void *fnmatch_data;

  long gssapi_delegation; /* GSSAPI credential delegation, see the
                             documentation of CURLOPT_GSSAPI_DELEGATION */

  bool tcp_keepalive;    /* use TCP keepalives */
  long tcp_keepidle;     /* seconds in idle before sending keepalive probe */
  long tcp_keepintvl;    /* seconds between TCP keepalive probes */

  size_t maxconnects;  /* Max idle connections in the connection cache */
};

struct Names {
  struct curl_hash *hostcache;
  enum {
    HCACHE_NONE,    /* not pointing to anything */
    HCACHE_PRIVATE, /* points to our own */
    HCACHE_GLOBAL,  /* points to the (shrug) global one */
    HCACHE_MULTI,   /* points to a shared one in the multi handle */
    HCACHE_SHARED   /* points to a shared one in a shared object */
  } hostcachetype;
};

/*
 * The 'connectdata' struct MUST have all the connection oriented stuff as we
 * may have several simultaneous connections and connection structs in memory.
 *
 * The 'struct UserDefined' must only contain data that is set once to go for
 * many (perhaps) independent connections. Values that are generated or
 * calculated internally for the "session handle" must be defined within the
 * 'struct UrlState' instead.
 */

struct SessionHandle {
  struct Names dns;
  struct Curl_multi *multi;    /* if non-NULL, points to the multi handle
                                  struct to which this "belongs" */
  struct Curl_one_easy *multi_pos; /* if non-NULL, points to its position
                                      in multi controlling structure to assist
                                      in removal. */
  struct Curl_share *share;    /* Share, handles global variable mutexing */
  struct SingleRequest req;    /* Request-specific data */
  struct UserDefined set;      /* values set by the libcurl user */
  struct DynamicStatic change; /* possibly modified userdefined data */
  struct CookieInfo *cookies;  /* the cookies, read from files and servers.
                                  NOTE that the 'cookie' field in the
                                  UserDefined struct defines if the "engine"
                                  is to be used or not. */
  struct Progress progress;    /* for all the progress meter data */
  struct UrlState state;       /* struct for fields used for state info and
                                  other dynamic purposes */
  struct WildcardData wildcard; /* wildcard download state info */
  struct PureInfo info;        /* stats, reports and info data */
#if defined(CURL_DOES_CONVERSIONS) && defined(HAVE_ICONV)
  iconv_t outbound_cd;         /* for translating to the network encoding */
  iconv_t inbound_cd;          /* for translating from the network encoding */
  iconv_t utf8_cd;             /* for translating to UTF8 */
#endif /* CURL_DOES_CONVERSIONS && HAVE_ICONV */
  unsigned int magic;          /* set to a CURLEASY_MAGIC_NUMBER */
};

#define LIBCURL_NAME "libcurl"

#endif /* HEADER_CURL_URLDATA_H */