T. Bharath's comments about SSL cleanup incorporated, and the two new

curl_global_* functions

lib/url.c

@@ -833,6 +833,17 @@ CURLcode Curl_disconnect(struct connectdata *conn)
 
 #ifdef USE_SSLEAY
   if (conn->ssl.use) {
+    /*
+      ERR_remove_state() frees the error queue associated with
+      thread pid.  If pid == 0, the current thread will have its
+      error queue removed.
+
+      Since error queue data structures are allocated
+      automatically for new threads, they must be freed when
+      threads are terminated in oder to avoid memory leaks.
+    */
+    ERR_remove_state(0);
+
     if(conn->ssl.handle) {
       (void)SSL_shutdown(conn->ssl.handle);
       SSL_set_connect_state(conn->ssl.handle);