mirror of
https://github.com/moparisthebest/curl
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93f1784526
variables, conditions and things.
697 lines
25 KiB
C
697 lines
25 KiB
C
#ifndef __URLDATA_H
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#define __URLDATA_H
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/*****************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2002, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* In order to be useful for every potential user, curl and libcurl are
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* dual-licensed under the MPL and the MIT/X-derivate licenses.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the MPL or the MIT/X-derivate
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* licenses. You may pick one of these licenses.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* $Id$
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*****************************************************************************/
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/* This file is for lib internal stuff */
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#include "setup.h"
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#include "hostip.h"
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#include "hash.h"
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#define PORT_FTP 21
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#define PORT_TELNET 23
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#define PORT_GOPHER 70
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#define PORT_HTTP 80
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#define PORT_HTTPS 443
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#define PORT_DICT 2628
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#define PORT_LDAP 389
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#define DICT_MATCH "/MATCH:"
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#define DICT_MATCH2 "/M:"
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#define DICT_MATCH3 "/FIND:"
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#define DICT_DEFINE "/DEFINE:"
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#define DICT_DEFINE2 "/D:"
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#define DICT_DEFINE3 "/LOOKUP:"
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#define CURL_DEFAULT_USER "anonymous"
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#define CURL_DEFAULT_PASSWORD "curl_by_daniel@haxx.se"
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#include "cookie.h"
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#include "formdata.h"
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#ifdef USE_SSLEAY
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/* SSLeay stuff usually in /usr/local/ssl/include */
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#ifdef USE_OPENSSL
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#include "openssl/rsa.h"
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#include "openssl/crypto.h"
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#include "openssl/x509.h"
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#include "openssl/pem.h"
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#include "openssl/ssl.h"
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#include "openssl/err.h"
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#ifdef HAVE_OPENSSL_ENGINE_H
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#include <openssl/engine.h>
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#endif
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#else
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#include "rsa.h"
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#include "crypto.h"
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#include "x509.h"
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#include "pem.h"
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#include "ssl.h"
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#include "err.h"
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#endif
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#endif
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#include "timeval.h"
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#include <curl/curl.h>
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#include "http_chunks.h" /* for the structs and enum stuff */
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/* Download buffer size, keep it fairly big for speed reasons */
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#define BUFSIZE CURL_MAX_WRITE_SIZE
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/* Initial size of the buffer to store headers in, it'll be enlarged in case
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of need. */
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#define HEADERSIZE 256
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/* Just a convenience macro to get the larger value out of two given */
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#ifndef MAX
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#define MAX(x,y) ((x)>(y)?(x):(y))
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#endif
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#ifdef KRB4
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/* Types needed for krb4-ftp connections */
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struct krb4buffer {
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void *data;
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size_t size;
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size_t index;
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int eof_flag;
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};
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enum protection_level {
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prot_clear,
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prot_safe,
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prot_confidential,
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prot_private
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};
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#endif
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#ifndef HAVE_OPENSSL_ENGINE_H
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typedef void ENGINE;
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#endif
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/* struct for data related to SSL and SSL connections */
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struct ssl_connect_data {
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bool use; /* use ssl encrypted communications TRUE/FALSE */
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#ifdef USE_SSLEAY
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/* these ones requires specific SSL-types */
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SSL_CTX* ctx;
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SSL* handle;
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X509* server_cert;
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#endif /* USE_SSLEAY */
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};
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/* information about one single SSL session */
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struct curl_ssl_session {
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char *name; /* host name for which this ID was used */
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void *sessionid; /* as returned from the SSL layer */
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long age; /* just a number, the higher the more recent */
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unsigned short remote_port; /* remote port to connect to */
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};
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struct ssl_config_data {
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long version; /* what version the client wants to use */
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long certverifyresult; /* result from the certificate verification */
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long verifypeer; /* set TRUE if this is desired */
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long verifyhost; /* 0: no verif, 1: check that CN exists, 2: CN must match hostname */
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char *CApath; /* DOES NOT WORK ON WINDOWS */
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char *CAfile; /* cerficate to verify peer against */
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char *random_file; /* path to file containing "random" data */
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char *egdsocket; /* path to file containing the EGD daemon socket */
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char *cipher_list; /* list of ciphers to use */
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long numsessions; /* SSL session id cache size */
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};
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/****************************************************************************
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* HTTP unique setup
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***************************************************************************/
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struct HTTP {
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struct FormData *sendit;
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int postsize;
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const char *p_pragma; /* Pragma: string */
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const char *p_accept; /* Accept: string */
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long readbytecount;
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long writebytecount;
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/* For FORM posting */
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struct Form form;
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curl_read_callback storefread;
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FILE *in;
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struct Curl_chunker chunk;
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};
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/****************************************************************************
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* FTP unique setup
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***************************************************************************/
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struct FTP {
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long *bytecountp;
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char *user; /* user name string */
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char *passwd; /* password string */
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char *urlpath; /* the originally given path part of the URL */
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char *dir; /* decoded directory */
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char *file; /* decoded file */
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char *entrypath; /* the PWD reply when we logged on */
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char *cache; /* data cache between getresponse()-calls */
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size_t cache_size; /* size of cache in bytes */
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bool dont_check; /* Set to TRUE to prevent the final (post-transfer)
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file size and 226/250 status check. It should still
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read the line, just ignore the result. */
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bool no_transfer; /* nothing was transfered, (possibly because a resumed
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transfer already was complete) */
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};
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/****************************************************************************
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* FILE unique setup
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***************************************************************************/
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struct FILE {
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int fd; /* open file descriptor to read from! */
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};
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/*
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* Boolean values that concerns this connection.
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*/
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struct ConnectBits {
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bool close; /* if set, we close the connection after this request */
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bool reuse; /* if set, this is a re-used connection */
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bool chunk; /* if set, this is a chunked transfer-encoding */
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bool httpproxy; /* if set, this transfer is done through a http proxy */
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bool user_passwd; /* do we use user+password for this connection? */
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bool proxy_user_passwd; /* user+password for the proxy? */
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bool use_range;
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bool rangestringalloc; /* the range string is malloc()'ed */
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};
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/*
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* This struct is all the previously local variables from Curl_perform() moved
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* to struct to allow the function to return and get re-invoked better without
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* losing state.
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*/
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struct Curl_transfer_keeper {
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int bytecount; /* total number of bytes read */
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int writebytecount; /* number of bytes written */
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long contentlength; /* size of incoming data */
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struct timeval start; /* transfer started at this time */
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struct timeval now; /* current time */
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bool header; /* incoming data has HTTP header */
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int headerline; /* counts header lines to better track the
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first one */
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char *hbufp; /* points at *end* of header line */
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int hbuflen;
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char *str; /* within buf */
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char *str_start; /* within buf */
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char *end_ptr; /* within buf */
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char *p; /* within headerbuff */
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bool content_range; /* set TRUE if Content-Range: was found */
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int offset; /* possible resume offset read from the
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Content-Range: header */
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int httpcode; /* error code from the 'HTTP/1.? XXX' line */
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int httpversion; /* the HTTP version*10 */
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bool write_after_100_header; /* should we enable the write after
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we received a 100-continue/timeout
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or directly */
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/* for the low speed checks: */
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time_t timeofdoc;
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long bodywrites;
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int writetype;
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/* the highest fd we use + 1 */
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struct SessionHandle *data;
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struct connectdata *conn;
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char *buf;
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char *uploadbuf;
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int maxfd;
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/* pointers to the actual descriptors we check */
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fd_set *readfdp;
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fd_set *writefdp;
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/* the file descriptors to play with */
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fd_set readfd;
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fd_set writefd;
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fd_set rkeepfd;
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fd_set wkeepfd;
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int keepon;
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};
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/*
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* The connectdata struct contains all fields and variables that should be
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* unique for an entire connection.
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*/
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struct connectdata {
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/**** Fields set when inited and not modified again */
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struct SessionHandle *data; /* link to the root CURL struct */
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int connectindex; /* what index in the connects index this particular
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struct has */
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long protocol; /* PROT_* flags concerning the protocol set */
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#define PROT_MISSING (1<<0)
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#define PROT_GOPHER (1<<1)
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#define PROT_HTTP (1<<2)
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#define PROT_HTTPS (1<<3)
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#define PROT_FTP (1<<4)
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#define PROT_TELNET (1<<5)
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#define PROT_DICT (1<<6)
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#define PROT_LDAP (1<<7)
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#define PROT_FILE (1<<8)
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#define PROT_FTPS (1<<9)
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#define PROT_SSL (1<<10) /* protocol requires SSL */
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#ifdef ENABLE_IPV6
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struct addrinfo *serv_addr; /* the particular host we use */
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#else
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struct sockaddr_in serv_addr;
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#endif
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char protostr[64]; /* store the protocol string in this buffer */
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char gname[513]; /* store the hostname in this buffer */
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char *name; /* host name pointer to fool around with */
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char *path; /* allocated buffer to store the URL's path part in */
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char *hostname; /* hostname to connect, as parsed from url */
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long port; /* which port to use locally */
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unsigned short remote_port; /* what remote port to connect to,
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not the proxy port! */
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char *ppath;
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long bytecount;
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long headerbytecount; /* only count received headers */
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char *range; /* range, if used. See README for detailed specification on
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this syntax. */
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ssize_t resume_from; /* continue [ftp] transfer from here */
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char *proxyhost; /* name of the http proxy host */
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struct timeval now; /* "current" time */
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struct timeval created; /* creation time */
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int firstsocket; /* the main socket to use */
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int secondarysocket; /* for i.e ftp transfers */
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long maxdownload; /* in bytes, the maximum amount of data to fetch, 0
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means unlimited */
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struct ssl_connect_data ssl; /* this is for ssl-stuff */
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struct ConnectBits bits; /* various state-flags for this connection */
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/* These two functions MUST be set by the curl_connect() function to be
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be protocol dependent */
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CURLcode (*curl_do)(struct connectdata *connect);
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CURLcode (*curl_done)(struct connectdata *connect);
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/* This function *MAY* be set to a protocol-dependent function that is run
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* after the connect() and everything is done, as a step in the connection.
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*/
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CURLcode (*curl_connect)(struct connectdata *connect);
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/* This function *MAY* be set to a protocol-dependent function that is run
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* by the curl_disconnect(), as a step in the disconnection.
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*/
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CURLcode (*curl_disconnect)(struct connectdata *connect);
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/* This function *MAY* be set to a protocol-dependent function that is run
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* in the curl_close() function if protocol-specific cleanups are required.
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*/
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CURLcode (*curl_close)(struct connectdata *connect);
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/**** curl_get() phase fields */
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/* READ stuff */
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int sockfd; /* socket to read from or -1 */
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int size; /* -1 if unknown at this point */
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bool getheader; /* TRUE if header parsing is wanted */
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long *bytecountp; /* return number of bytes read or NULL */
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/* WRITE stuff */
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int writesockfd; /* socket to write to, it may very well be
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the same we read from. -1 disables */
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long *writebytecountp; /* return number of bytes written or NULL */
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/** Dynamicly allocated strings, may need to be freed before this **/
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/** struct is killed. **/
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struct dynamically_allocated_data {
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char *proxyuserpwd; /* free later if not NULL! */
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char *uagent; /* free later if not NULL! */
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char *userpwd; /* free later if not NULL! */
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char *rangeline; /* free later if not NULL! */
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char *ref; /* free later if not NULL! */
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char *cookie; /* free later if not NULL! */
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char *host; /* free later if not NULL */
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} allocptr;
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char *newurl; /* This can only be set if a Location: was in the
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document headers */
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#ifdef KRB4
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enum protection_level command_prot;
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enum protection_level data_prot;
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enum protection_level request_data_prot;
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size_t buffer_size;
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struct krb4buffer in_buffer, out_buffer;
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int sec_complete;
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void *app_data;
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struct Curl_sec_client_mech *mech;
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struct sockaddr_in local_addr;
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#endif
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/*************** Request - specific items ************/
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/* previously this was in the urldata struct */
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union {
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struct HTTP *http;
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struct HTTP *gopher; /* alias, just for the sake of being more readable */
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struct HTTP *https; /* alias, just for the sake of being more readable */
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struct FTP *ftp;
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struct FILE *file;
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void *telnet; /* private for telnet.c-eyes only */
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#if 0 /* no need for special ones for these: */
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struct LDAP *ldap;
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struct DICT *dict;
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#endif
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void *generic;
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} proto;
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/* This struct is inited when needed */
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struct Curl_transfer_keeper keep;
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/* 'upload_present' is used to keep a byte counter of how much data there is
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still left in the buffer, aimed for upload. */
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int upload_present;
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/* 'upload_fromhere' is used as a read-pointer when we uploaded parts of a
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buffer, so the next read should read from where this pointer points to,
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and the 'upload_present' contains the number of bytes available at this
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position */
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char *upload_fromhere;
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};
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/*
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* Struct to keep statistical and informational data.
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*/
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struct PureInfo {
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int httpcode;
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int httpversion;
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long filetime; /* If requested, this is might get set. Set to -1 if
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the time was unretrievable */
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long header_size; /* size of read header(s) in bytes */
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long request_size; /* the amount of bytes sent in the request(s) */
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char *contenttype; /* the content type of the object */
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};
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struct Progress {
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long lastshow; /* time() of the last displayed progress meter or NULL to
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force redraw at next call */
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double size_dl;
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double size_ul;
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double downloaded;
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double uploaded;
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double current_speed; /* uses the currently fastest transfer */
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bool callback; /* set when progress callback is used */
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int width; /* screen width at download start */
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int flags; /* see progress.h */
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double timespent;
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double dlspeed;
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double ulspeed;
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double t_nslookup;
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double t_connect;
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double t_pretransfer;
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double t_starttransfer;
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double t_redirect;
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struct timeval start;
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struct timeval t_startsingle;
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#define CURR_TIME (5+1) /* 6 entries for 5 seconds */
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double speeder[ CURR_TIME ];
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struct timeval speeder_time[ CURR_TIME ];
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int speeder_c;
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};
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typedef enum {
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HTTPREQ_NONE, /* first in list */
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HTTPREQ_GET,
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HTTPREQ_POST,
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HTTPREQ_POST_FORM, /* we make a difference internally */
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HTTPREQ_PUT,
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HTTPREQ_CUSTOM,
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HTTPREQ_LAST /* last in list */
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} Curl_HttpReq;
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/*
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* Values that are generated, temporary or calculated internally for a
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* "session handle" must be defined within the 'struct urlstate'. This struct
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* will be used within the SessionHandle struct. When the 'SessionHandle'
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* struct is cloned, this data MUST NOT be copied.
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*
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* Remember that any "state" information goes globally for the curl handle.
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* Session-data MUST be put in the connectdata struct and here. */
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#define MAX_CURL_USER_LENGTH 256
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#define MAX_CURL_PASSWORD_LENGTH 256
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struct UrlState {
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/* buffers to store authentication data in, as parsed from input options */
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char user[MAX_CURL_USER_LENGTH];
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char passwd[MAX_CURL_PASSWORD_LENGTH];
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char proxyuser[MAX_CURL_USER_LENGTH];
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char proxypasswd[MAX_CURL_PASSWORD_LENGTH];
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struct timeval keeps_speed; /* for the progress meter really */
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/* 'connects' will be an allocated array with pointers. If the pointer is
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set, it holds an allocated connection. */
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struct connectdata **connects;
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long numconnects; /* size of the 'connects' array */
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char *headerbuff; /* allocated buffer to store headers in */
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int headersize; /* size of the allocation */
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char buffer[BUFSIZE+1]; /* download buffer */
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char uploadbuffer[BUFSIZE+1]; /* upload buffer */
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double current_speed; /* the ProgressShow() funcion sets this */
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bool this_is_a_follow; /* this is a followed Location: request */
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char *auth_host; /* if set, this should be the host name that we will
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sent authorization to, no else. Used to make Location:
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following not keep sending user+password... This is
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strdup() data.
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*/
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struct curl_ssl_session *session; /* array of 'numsessions' size */
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long sessionage; /* number of the most recent session */
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char scratch[BUFSIZE*2]; /* huge buffer when doing upload CRLF replacing */
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bool errorbuf; /* Set to TRUE if the error buffer is already filled in.
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This must be set to FALSE every time _easy_perform() is
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called. */
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#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. */
|
|
};
|
|
|
|
|
|
/*
|
|
* 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 *proxy; /* work proxy, copied from UserDefined */
|
|
bool proxy_alloc; /* http proxy string is malloc()'ed */
|
|
char *referer; /* referer string */
|
|
bool referer_alloc; /* referer sting is malloc()ed */
|
|
};
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
struct UserDefined {
|
|
FILE *err; /* the stderr user data goes here */
|
|
void *debugdata; /* the data that will be passed to fdebug */
|
|
char *errorbuffer; /* store failure messages in here */
|
|
char *proxyuserpwd; /* Proxy <user:password>, if used */
|
|
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 is non-NULL */
|
|
char *set_url; /* what original URL to work on */
|
|
char *set_proxy; /* proxy to use */
|
|
long use_port; /* which port to use (when not using default) */
|
|
char *userpwd; /* <user:password>, if used */
|
|
char *set_range; /* range, if used. See README for detailed specification
|
|
on this syntax. */
|
|
long followlocation; /* as in HTTP Location: */
|
|
long maxredirs; /* maximum no. of http(s) redirects to follow */
|
|
char *set_referer; /* custom string */
|
|
bool free_referer; /* set TRUE if 'referer' points to a string we
|
|
allocated */
|
|
char *useragent; /* User-Agent string */
|
|
char *postfields; /* if POST, set the fields' values here */
|
|
size_t postfieldsize; /* if POST, this might have a size to use instead of
|
|
strlen(), and then the data *may* be binary (contain
|
|
zero bytes) */
|
|
char *ftpport; /* port to send with the FTP PORT command */
|
|
char *device; /* network interface to use */
|
|
curl_write_callback fwrite; /* function that stores the output */
|
|
curl_write_callback fwrite_header; /* function that stores headers */
|
|
curl_read_callback fread; /* function that reads the input */
|
|
curl_progress_callback fprogress; /* function for progress information */
|
|
curl_debug_callback fdebug; /* function that write informational data */
|
|
void *progress_client; /* pointer to pass to the progress callback */
|
|
curl_passwd_callback fpasswd; /* call for password */
|
|
void *passwd_client; /* pass to the passwd callback */
|
|
long timeout; /* in seconds, 0 means no timeout */
|
|
long connecttimeout; /* in seconds, 0 means no timeout */
|
|
long infilesize; /* size of file to upload, -1 means unknown */
|
|
long low_speed_limit; /* bytes/second */
|
|
long low_speed_time; /* number of seconds */
|
|
int set_resume_from; /* continue [ftp] transfer from here */
|
|
char *cookie; /* HTTP cookie string to send */
|
|
struct curl_slist *headers; /* linked list of extra headers */
|
|
struct HttpPost *httppost; /* linked list of POST data */
|
|
char *cert; /* certificate */
|
|
char *cert_type; /* format for certificate (default: PEM) */
|
|
char *key; /* private key */
|
|
char *key_type; /* format for private key (default: PEM) */
|
|
char *key_passwd; /* plain text private key password */
|
|
char *crypto_engine; /* name of the crypto engine to use */
|
|
char *cookiejar; /* dump all cookies to this file */
|
|
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 (Wesley Laxton)*/
|
|
struct curl_slist *telnet_options; /* linked list of telnet options */
|
|
curl_TimeCond timecondition; /* kind of time/date comparison */
|
|
time_t timevalue; /* what time to compare with */
|
|
curl_closepolicy closepolicy; /* connection cache close concept */
|
|
Curl_HttpReq httpreq; /* what kind of HTTP request (if any) is this */
|
|
char *customrequest; /* HTTP/FTP request to use */
|
|
long httpversion; /* when non-zero, a specific HTTP version requested to
|
|
be used in the library's request(s) */
|
|
char *auth_host; /* if set, this is the allocated string to the host name
|
|
* to which to send the authorization data to, and no other
|
|
* host (which location-following otherwise could lead to)
|
|
*/
|
|
char *krb4_level; /* what security level */
|
|
struct ssl_config_data ssl; /* user defined SSL stuff */
|
|
|
|
int dns_cache_timeout; /* DNS cache timeout */
|
|
|
|
/* 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 get_filetime;
|
|
bool tunnel_thru_httpproxy;
|
|
bool ftp_append;
|
|
bool ftp_ascii;
|
|
bool ftp_list_only;
|
|
bool ftp_use_port;
|
|
bool hide_progress;
|
|
bool http_fail_on_error;
|
|
bool http_follow_location;
|
|
bool include_header;
|
|
#define http_include_header include_header /* former name */
|
|
|
|
bool http_set_referer;
|
|
bool http_auto_referer; /* set "correct" referer when following location: */
|
|
bool no_body;
|
|
bool set_port;
|
|
bool upload;
|
|
enum CURL_NETRC_OPTION
|
|
use_netrc; /* defined in include/curl.h */
|
|
bool verbose;
|
|
bool krb4; /* kerberos4 connection requested */
|
|
bool reuse_forbid; /* forbidden to be reused, close after use */
|
|
bool reuse_fresh; /* do not re-use an existing connection */
|
|
bool expect100header; /* TRUE if we added Expect: 100-continue */
|
|
bool ftp_use_epsv; /* if EPSV is to be attempted or not */
|
|
|
|
bool global_dns_cache;
|
|
};
|
|
|
|
/*
|
|
* In August 2001, this struct was redesigned and is since stricter than
|
|
* before. The 'connectdata' struct MUST have all the connection oriented
|
|
* stuff as we may now have several simultaneous connections and connection
|
|
* structs in memory.
|
|
*
|
|
* From now on, the 'SessionHandle' 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 {
|
|
curl_hash *hostcache;
|
|
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 */
|
|
struct Progress progress; /* for all the progress meter data */
|
|
struct UrlState state; /* struct for fields used for state info and
|
|
other dynamic purposes */
|
|
struct PureInfo info; /* stats, reports and info data */
|
|
#ifdef USE_SSLEAY
|
|
ENGINE* engine;
|
|
#endif /* USE_SSLEAY */
|
|
};
|
|
|
|
#define LIBCURL_NAME "libcurl"
|
|
|
|
#endif
|