Add cleanup to LLCore prevent occasional crash on exit.

indra/llcorehttp/httpcommon.cpp

@@ -350,6 +350,11 @@ void deallocateEasyCurl(CURL *curlp)
 //static
 void ssl_locking_callback(int mode, int type, const char *file, int line)
 {
+    if (type >= sSSLMutex.size())
+    {
+        LL_WARNS() << "Attempt to get unknown MUTEX in SSL Lock." << LL_ENDL;
+    }
+
     if (mode & CRYPTO_LOCK)
     {
         sSSLMutex[type]->lock();
@@ -392,6 +397,18 @@ void initialize()
 }
 
 
+void cleanup()
+{
+#if SAFE_SSL
+    CRYPTO_set_id_callback(NULL);
+    CRYPTO_set_locking_callback(NULL);
+    sSSLMutex.clear();
+#endif
+
+    curl_global_cleanup();
+}
+
+
 CURL_ptr createEasyHandle()
 {
     LLMutexLock lock(getCurlMutex());

indra/llcorehttp/httpcommon.h

@@ -497,6 +497,7 @@ namespace LLHttp
     typedef boost::shared_ptr<CURL> CURL_ptr;
 
     void initialize();
+    void cleanup();
 
     CURL_ptr createEasyHandle();
     std::string getCURLVersion();

indra/newview/llappviewer.cpp

@@ -2077,6 +2077,7 @@ bool LLAppViewer::cleanup()
 	}
 	LL_INFOS() << "Cleaning up LLProxy." << LL_ENDL;
 	LLProxy::cleanupClass();
+    LLCore::LLHttp::cleanup();
 
 	LLWearableType::cleanupClass();