mirror of
https://github.com/rajkosto/mxoemu
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181 lines
3.9 KiB
C++
181 lines
3.9 KiB
C++
/**
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** \file SSLInitializer.cpp
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** \date 2007-04-30
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** \author grymse@alhem.net
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**/
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/*
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Copyright (C) 2007-2010 Anders Hedstrom
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This library is made available under the terms of the GNU GPL, with
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the additional exemption that compiling, linking, and/or using OpenSSL
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is allowed.
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If you would like to use this library in a closed-source application,
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a separate license agreement is available. For information about
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the closed-source license agreement for the C++ sockets library,
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please visit http://www.alhem.net/Sockets/license.html and/or
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email license@alhem.net.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef _WIN32
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#ifdef _MSC_VER
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#pragma warning(disable:4786)
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#endif
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#include <io.h>
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#endif
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#include "SSLInitializer.h"
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#ifdef HAVE_OPENSSL
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#include <map>
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#include "Utility.h"
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#include <openssl/rand.h>
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#include "Lock.h"
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#ifdef _DEBUG
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#define DEB(x) x
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#else
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#define DEB(x)
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#endif
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#ifdef SOCKETS_NAMESPACE
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namespace SOCKETS_NAMESPACE {
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#endif
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std::map<int, IMutex *> *SSLInitializer::m_mmap = NULL;
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Mutex *SSLInitializer::m_mmap_mutex = NULL;
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SSLInitializer::SSLInitializer()
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{
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DEB( fprintf(stderr, "SSLInitializer()\n");)
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bio_err = NULL;
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m_rand_size = 1024;
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/* An error write context */
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bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
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/* Global system initialization*/
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SSL_library_init();
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SSL_load_error_strings();
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OpenSSL_add_all_algorithms();
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CRYPTO_set_locking_callback( SSL_locking_function );
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CRYPTO_set_id_callback( SSL_id_function );
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std::string randfile = Utility::GetEnv("RANDFILE");
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std::string home = Utility::GetEnv("HOME");
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if (randfile.empty() && home.empty())
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{
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std::string homepath = Utility::GetEnv("HOMEPATH");
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if (!homepath.empty())
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{
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Utility::SetEnv("HOME", homepath);
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}
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}
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char path[512];
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*path = 0;
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RAND_file_name(path, 512);
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if (*path)
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{
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m_rand_file = path;
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m_rand_size = 1024;
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RAND_write_file(path);
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}
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else
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{
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DEB( fprintf(stderr, "SSLInitializer: no random file generated\n");)
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}
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/* Load randomness */
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if (!m_rand_file.size() || !RAND_load_file(m_rand_file.c_str(), m_rand_size))
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{
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DEB( fprintf(stderr, "SSLInitializer: PRNG not initialized\n");)
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}
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}
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SSLInitializer::~SSLInitializer()
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{
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DEB( fprintf(stderr, "~SSLInitializer()\n");)
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DeleteRandFile();
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// %! delete mutexes
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}
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void SSLInitializer::DeleteRandFile()
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{
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if (m_rand_file.size())
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{
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#ifdef _WIN32
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_unlink(m_rand_file.c_str());
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#else
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unlink(m_rand_file.c_str());
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#endif
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}
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}
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void SSLInitializer::SSL_locking_function(int mode, int n, const char *file, int line)
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{
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IMutex *mutex = NULL;
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{
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Lock lock(MMapMutex());
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if (MMap().find(n) == MMap().end())
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{
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MMap()[n] = new Mutex;
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}
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mutex = MMap()[n];
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}
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if (mode & CRYPTO_LOCK)
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{
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mutex -> Lock();
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}
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else
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{
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mutex -> Unlock();
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}
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}
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unsigned long SSLInitializer::SSL_id_function()
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{
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return Utility::ThreadID();
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}
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std::map<int, IMutex *>& SSLInitializer::MMap()
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{
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if (m_mmap == NULL)
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m_mmap = new std::map<int, IMutex *>();
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return *m_mmap;
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}
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Mutex& SSLInitializer::MMapMutex()
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{
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if (m_mmap_mutex == NULL)
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m_mmap_mutex = new Mutex();
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return *m_mmap_mutex;
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}
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#ifdef SOCKETS_NAMESPACE
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} // namespace SOCKETS_NAMESPACE {
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#endif
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#endif // HAVE_OPENSSL
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