mirror of
https://github.com/moparisthebest/curl
synced 2024-08-13 17:03:50 -04:00
942cf12c2f
By making the `magic` identifier the same size and at the same place within the structs (easy, multi, share), libcurl will be able to more reliably detect and safely error out if an application passes in the wrong handle to APIs. Easier to detect and less likely to cause crashes if done. Such mixups can't be detected at compile-time due to them being typedefed void pointers - unless `CURL_STRICTER` is defined. Closes #6484
71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
#ifndef HEADER_CURL_SHARE_H
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#define HEADER_CURL_SHARE_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 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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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 COPYING file.
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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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***************************************************************************/
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#include "curl_setup.h"
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#include <curl/curl.h>
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#include "cookie.h"
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#include "psl.h"
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#include "urldata.h"
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#include "conncache.h"
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/* SalfordC says "A structure member may not be volatile". Hence:
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*/
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#ifdef __SALFORDC__
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#define CURL_VOLATILE
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#else
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#define CURL_VOLATILE volatile
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#endif
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#define CURL_GOOD_SHARE 0x7e117a1e
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#define GOOD_SHARE_HANDLE(x) ((x) && (x)->magic == CURL_GOOD_SHARE)
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/* this struct is libcurl-private, don't export details */
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struct Curl_share {
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unsigned int magic; /* CURL_GOOD_SHARE */
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unsigned int specifier;
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CURL_VOLATILE unsigned int dirty;
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curl_lock_function lockfunc;
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curl_unlock_function unlockfunc;
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void *clientdata;
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struct conncache conn_cache;
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struct Curl_hash hostcache;
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#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
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struct CookieInfo *cookies;
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#endif
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#ifdef USE_LIBPSL
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struct PslCache psl;
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#endif
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struct Curl_ssl_session *sslsession;
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size_t max_ssl_sessions;
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long sessionage;
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};
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CURLSHcode Curl_share_lock(struct Curl_easy *, curl_lock_data,
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curl_lock_access);
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CURLSHcode Curl_share_unlock(struct Curl_easy *, curl_lock_data);
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#endif /* HEADER_CURL_SHARE_H */
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