libcurl库文件

#ifndef __CURL_CURL_H #define __CURL_CURL_H /*************************************************************************** * _ _ ____ _ * Project ___| | | | _ \| | * / __| | | | |_) | | * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al. * * This software is licensed as described in the file COPYING, which * you should have received as part of this distribution. The terms * are also available at https://curl.haxx.se/docs/copyright.html. * * You may opt to use, copy, modify, merge, publish, distribute and/or sell * copies of the Software, and permit persons to whom the Software is * furnished to do so, under the terms of the COPYING file. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ***************************************************************************/ /* * If you have libcurl problems, all docs and details are found here: * https://curl.haxx.se/libcurl/ * * curl-library mailing list subscription and unsubscription web interface: * https://cool.haxx.se/mailman/listinfo/curl-library/ */ #ifdef CURL_NO_OLDIES #define CURL_STRICTER #endif #include "curlver.h" /* libcurl version defines */ #include "curlbuild.h" /* libcurl build definitions */ #include "curlrules.h" /* libcurl rules enforcement */ /* * Define WIN32 when build target is Win32 API */ #if (defined(_WIN32) || defined(__WIN32__)) && \ !defined(WIN32) && !defined(__SYMBIAN32__) #define WIN32 #endif #include <stdio.h> #include <limits.h> #if defined(__FreeBSD__) && (__FreeBSD__ >= 2) /* Needed for __FreeBSD_version symbol definition */ #include <osreldate.h> #endif /* The include stuff here below is mainly for time_t! */ #include <sys/types.h> #include <time.h> #if defined(WIN32) && !defined(_WIN32_WCE) && !defined(__CYGWIN__) #if !(defined(_WINSOCKAPI_) || defined(_WINSOCK_H) || \ defined(__LWIP_OPT_H__) || defined(LWIP_HDR_OPT_H)) /* The check above prevents the winsock2 inclusion if winsock.h already was included, since they can't co-exist without problems */ #include <winsock2.h> #include <ws2tcpip.h> #endif #endif /* HP-UX systems version 9, 10 and 11 lack sys/select.h and so does oldish libc5-based Linux systems. Only include it on systems that are known to require it! */ #if defined(_AIX) || defined(__NOVELL_LIBC__) || defined(__NetBSD__) || \ defined(__minix) || defined(__SYMBIAN32__) || defined(__INTEGRITY) || \ defined(ANDROID) || defined(__ANDROID__) || defined(__OpenBSD__) || \ (defined(__FreeBSD_version) && (__FreeBSD_version < 800000)) #include <sys/select.h> #endif #if !defined(WIN32) && !defined(_WIN32_WCE) #include <sys/socket.h> #endif #if !defined(WIN32) && !defined(__WATCOMC__) && !defined(__VXWORKS__) #include <sys/time.h> #endif #ifdef __BEOS__ #include <support/SupportDefs.h> #endif #ifdef __cplusplus extern "C" { #endif #if defined(BUILDING_LIBCURL) || defined(CURL_STRICTER) typedef struct Curl_easy CURL; typedef struct Curl_share CURLSH; #else typedef void CURL; typedef void CURLSH; #endif /* * libcurl external API function linkage decorations. */ #ifdef CURL_STATICLIB # define CURL_EXTERN #elif defined(WIN32) || defined(_WIN32) || defined(__SYMBIAN32__) # if defined(BUILDING_LIBCURL) # define CURL_EXTERN __declspec(dllexport) # else # define CURL_EXTERN __declspec(dllimport) # endif #elif defined(BUILDING_LIBCURL) && defined(CURL_HIDDEN_SYMBOLS) # define CURL_EXTERN CURL_EXTERN_SYMBOL #else # define CURL_EXTERN #endif #ifndef curl_socket_typedef /* socket typedef */ #if defined(WIN32) && !defined(__LWIP_OPT_H__) && !defined(LWIP_HDR_OPT_H) typedef SOCKET curl_socket_t; #define CURL_SOCKET_BAD INVALID_SOCKET #else typedef int curl_socket_t; #define CURL_SOCKET_BAD -1 #endif #define curl_socket_typedef #endif /* curl_socket_typedef */ struct curl_httppost { struct curl_httppost *next; /* next entry in the list */ char *name; /* pointer to allocated name */ long namelength; /* length of name length */ char *contents; /* pointer to allocated data contents */ long contentslength; /* length of contents field, see also CURL_HTTPPOST_LARGE */ char *buffer; /* pointer to allocated buffer contents */ long bufferlength; /* length of buffer field */ char *contenttype; /* Content-Type */ struct curl_slist* contentheader; /* list of extra headers for this form */ struct curl_httppost *more; /* if one field name has more than one file, this link should link to following files */ long flags; /* as defined below */ /* specified content is a file name */ #define CURL_HTTPPOST_FILENAME (1<<0) /* specified content is a file name */ #define CURL_HTTPPOST_READFILE (1<<1) /* name is only stored pointer do not free in formfree */ #define CURL_HTTPPOST_PTRNAME (1<<2) /* contents is only stored pointer do not free in formfree */ #define CURL_HTTPPOST_PTRCONTENTS (1<<3) /* upload file from buffer */ #define CURL_HTTPPOST_BUFFER (1<<4) /* upload file from pointer contents */ #define CURL_HTTPPOST_PTRBUFFER (1<<5) /* upload file contents by using the regular read callback to get the data and pass the given pointer as custom pointer */ #define CURL_HTTPPOST_CALLBACK (1<<6) /* use size in 'contentlen', added in 7.46.0 */ #define CURL_HTTPPOST_LARGE (1<<7) char *showfilename; /* The file name to show. If not set, the actual file name will be used (if this is a file part) */ void *userp; /* custom pointer used for HTTPPOST_CALLBACK posts */ curl_off_t contentlen; /* alternative length of contents field. Used if CURL_HTTPPOST_LARGE is set. Added in 7.46.0 */ }; /* This is the CURLOPT_PROGRESSFUNCTION callback proto. It is now considered deprecated but was the only choice up until 7.31.0 */ typedef int (*curl_progress_callback)(void *clientp, double dltotal, double dlnow, double ultotal, double ulnow); /* This is the CURLOPT_XFERINFOFUNCTION callback proto. It was introduced in 7.32.0, it avoids floating point and provides more detailed information. */ typedef int (*curl_xferinfo_callback)(void *clientp, curl_off_t dltotal, curl_off_t dlnow, curl_off_t ultotal, curl_off_t ulnow); #ifndef CURL_MAX_WRITE_SIZE /* Tests have proven that 20K is a very bad buffer size for uploads on Windows, while 16K for some odd reason performed a lot better. We do the ifndef check to allow this value to easier be changed at build time for those who feel adventurous. The practical minimum is about 400 bytes since libcurl uses a buffer of this size as a scratch area (unrelated to network send operations). */ #define CURL_MAX_WRITE_SIZE 16384 #endif #ifndef CURL_MAX_HTTP_HEADER /* The only reason to have a max limit for this is to avoid the risk of a bad server feeding libcurl with a never-ending header that will cause reallocs infinitely */ #define CURL_MAX_HTTP_HEADER (100*1024) #endif /* This is a magic return code for the write callback that, wh