mirror of
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95 lines
3.0 KiB
C
95 lines
3.0 KiB
C
/*
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* Copyright (c) 2016 Lammert Bies
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* Copyright (c) 2013-2016 the Civetweb developers
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* Copyright (c) 2004-2013 Sergey Lyubka
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* ============
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* Release: 2.0
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*/
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#include "httplib_main.h"
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#include "httplib_pthread.h"
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#include "httplib_ssl.h"
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#include "httplib_utils.h"
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#if !defined(NO_SSL)
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#if defined(SSL_ALREADY_INITIALIZED)
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int XX_httplib_cryptolib_users = 1; /* Reference counter for crypto library. */
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#else
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int XX_httplib_cryptolib_users = 0; /* Reference counter for crypto library. */
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#endif
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#if !defined(NO_SSL_DL)
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static void *cryptolib_dll_handle; /* Store the crypto library handle. */
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#endif /* NO_SSL_DL */
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/*
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* int XX_httplib_initialize_ssl( struct httplib_context *ctx );
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*
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* The function XX_httplib_initialize_ssl() initializes the use of SSL
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* encrypted communication on the given context.
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*/
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int XX_httplib_initialize_ssl( struct httplib_context *ctx ) {
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int i;
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size_t size;
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#if !defined(NO_SSL_DL)
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if ( ! cryptolib_dll_handle ) {
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cryptolib_dll_handle = XX_httplib_load_dll( ctx, CRYPTO_LIB, XX_httplib_crypto_sw );
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if ( ! cryptolib_dll_handle ) return 0;
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}
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#endif /* NO_SSL_DL */
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if ( httplib_atomic_inc( & XX_httplib_cryptolib_users ) > 1 ) return 1;
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/*
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* Initialize locking callbacks, needed for thread safety.
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* http://www.openssl.org/support/faq.html#PROG1
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*/
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i = CRYPTO_num_locks();
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if ( i < 0 ) i = 0;
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size = sizeof(pthread_mutex_t) * ((size_t)(i));
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if ( (XX_httplib_ssl_mutexes = httplib_malloc( size )) == NULL ) {
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httplib_cry( DEBUG_LEVEL_CRASH, ctx, NULL, "%s: cannot allocate mutexes: %s", __func__, XX_httplib_ssl_error() );
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return 0;
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}
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for (i=0; i<CRYPTO_num_locks(); i++) httplib_pthread_mutex_init( & XX_httplib_ssl_mutexes[i], &XX_httplib_pthread_mutex_attr);
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CRYPTO_set_locking_callback( & XX_httplib_ssl_locking_callback );
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CRYPTO_set_id_callback( & XX_httplib_ssl_id_callback );
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return 1;
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} /* XX_httplib_initialize_ssl */
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#endif /* !NO_SSL */
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