258 lines
6.2 KiB
C
258 lines
6.2 KiB
C
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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 - 2018, 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.haxx.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 "urldata.h"
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#include "share.h"
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#include "psl.h"
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#include "vtls/vtls.h"
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#include "curl_memory.h"
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/* The last #include file should be: */
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#include "memdebug.h"
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struct Curl_share *
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curl_share_init(void)
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{
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struct Curl_share *share = calloc(1, sizeof(struct Curl_share));
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if(share) {
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share->specifier |= (1<<CURL_LOCK_DATA_SHARE);
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if(Curl_mk_dnscache(&share->hostcache)) {
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free(share);
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return NULL;
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}
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}
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return share;
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}
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#undef curl_share_setopt
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CURLSHcode
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curl_share_setopt(struct Curl_share *share, CURLSHoption option, ...)
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{
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va_list param;
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int type;
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curl_lock_function lockfunc;
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curl_unlock_function unlockfunc;
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void *ptr;
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CURLSHcode res = CURLSHE_OK;
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if(share->dirty)
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/* don't allow setting options while one or more handles are already
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using this share */
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return CURLSHE_IN_USE;
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va_start(param, option);
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switch(option) {
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case CURLSHOPT_SHARE:
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/* this is a type this share will share */
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type = va_arg(param, int);
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share->specifier |= (1<<type);
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switch(type) {
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case CURL_LOCK_DATA_DNS:
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break;
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case CURL_LOCK_DATA_COOKIE:
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#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
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if(!share->cookies) {
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share->cookies = Curl_cookie_init(NULL, NULL, NULL, TRUE);
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if(!share->cookies)
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res = CURLSHE_NOMEM;
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}
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#else /* CURL_DISABLE_HTTP */
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res = CURLSHE_NOT_BUILT_IN;
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#endif
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break;
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case CURL_LOCK_DATA_SSL_SESSION:
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#ifdef USE_SSL
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if(!share->sslsession) {
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share->max_ssl_sessions = 8;
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share->sslsession = calloc(share->max_ssl_sessions,
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sizeof(struct curl_ssl_session));
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share->sessionage = 0;
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if(!share->sslsession)
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res = CURLSHE_NOMEM;
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}
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#else
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res = CURLSHE_NOT_BUILT_IN;
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#endif
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break;
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case CURL_LOCK_DATA_CONNECT: /* not supported (yet) */
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if(Curl_conncache_init(&share->conn_cache, 103))
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res = CURLSHE_NOMEM;
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break;
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case CURL_LOCK_DATA_PSL:
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#ifndef USE_LIBPSL
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res = CURLSHE_NOT_BUILT_IN;
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#endif
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break;
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default:
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res = CURLSHE_BAD_OPTION;
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}
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break;
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case CURLSHOPT_UNSHARE:
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/* this is a type this share will no longer share */
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type = va_arg(param, int);
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share->specifier &= ~(1<<type);
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switch(type) {
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case CURL_LOCK_DATA_DNS:
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break;
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case CURL_LOCK_DATA_COOKIE:
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#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
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if(share->cookies) {
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Curl_cookie_cleanup(share->cookies);
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share->cookies = NULL;
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}
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#else /* CURL_DISABLE_HTTP */
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res = CURLSHE_NOT_BUILT_IN;
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#endif
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break;
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case CURL_LOCK_DATA_SSL_SESSION:
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#ifdef USE_SSL
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Curl_safefree(share->sslsession);
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#else
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res = CURLSHE_NOT_BUILT_IN;
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#endif
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break;
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case CURL_LOCK_DATA_CONNECT:
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break;
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default:
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res = CURLSHE_BAD_OPTION;
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break;
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}
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break;
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case CURLSHOPT_LOCKFUNC:
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lockfunc = va_arg(param, curl_lock_function);
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share->lockfunc = lockfunc;
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break;
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case CURLSHOPT_UNLOCKFUNC:
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unlockfunc = va_arg(param, curl_unlock_function);
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share->unlockfunc = unlockfunc;
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break;
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case CURLSHOPT_USERDATA:
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ptr = va_arg(param, void *);
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share->clientdata = ptr;
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break;
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default:
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res = CURLSHE_BAD_OPTION;
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break;
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}
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va_end(param);
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return res;
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}
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CURLSHcode
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curl_share_cleanup(struct Curl_share *share)
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{
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if(share == NULL)
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return CURLSHE_INVALID;
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if(share->lockfunc)
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share->lockfunc(NULL, CURL_LOCK_DATA_SHARE, CURL_LOCK_ACCESS_SINGLE,
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share->clientdata);
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if(share->dirty) {
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if(share->unlockfunc)
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share->unlockfunc(NULL, CURL_LOCK_DATA_SHARE, share->clientdata);
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return CURLSHE_IN_USE;
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}
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Curl_conncache_close_all_connections(&share->conn_cache);
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Curl_conncache_destroy(&share->conn_cache);
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Curl_hash_destroy(&share->hostcache);
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#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
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Curl_cookie_cleanup(share->cookies);
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#endif
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#ifdef USE_SSL
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if(share->sslsession) {
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size_t i;
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for(i = 0; i < share->max_ssl_sessions; i++)
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Curl_ssl_kill_session(&(share->sslsession[i]));
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free(share->sslsession);
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}
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#endif
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Curl_psl_destroy(&share->psl);
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if(share->unlockfunc)
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share->unlockfunc(NULL, CURL_LOCK_DATA_SHARE, share->clientdata);
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free(share);
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return CURLSHE_OK;
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}
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CURLSHcode
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Curl_share_lock(struct Curl_easy *data, curl_lock_data type,
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curl_lock_access accesstype)
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{
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struct Curl_share *share = data->share;
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if(share == NULL)
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return CURLSHE_INVALID;
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if(share->specifier & (1<<type)) {
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if(share->lockfunc) /* only call this if set! */
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share->lockfunc(data, type, accesstype, share->clientdata);
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}
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/* else if we don't share this, pretend successful lock */
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return CURLSHE_OK;
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}
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CURLSHcode
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Curl_share_unlock(struct Curl_easy *data, curl_lock_data type)
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{
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struct Curl_share *share = data->share;
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if(share == NULL)
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return CURLSHE_INVALID;
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if(share->specifier & (1<<type)) {
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if(share->unlockfunc) /* only call this if set! */
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share->unlockfunc (data, type, share->clientdata);
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}
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return CURLSHE_OK;
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}
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