1 files changed, 75 insertions, 0 deletions
diff --git a/botan/src/libstate/init.cpp b/botan/src/libstate/init.cpp
new file mode 100644
index 0000000..b908de6
--- /dev/null
+++ b/botan/src/libstate/init.cpp
@@ -0,0 +1,75 @@
+/**
+* Default Initialization Function
+* (C) 1999-2007 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#include <botan/init.h>
+#include <botan/parsing.h>
+#include <botan/libstate.h>
+
+namespace Botan {
+
+/*
+* Library Initialization
+*/
+void LibraryInitializer::initialize(const std::string& arg_string)
+   {
+   bool thread_safe = false;
+
+   const std::vector<std::string> arg_list = split_on(arg_string, ' ');
+   for(u32bit j = 0; j != arg_list.size(); ++j)
+      {
+      if(arg_list[j].size() == 0)
+         continue;
+
+      std::string name, value;
+
+      if(arg_list[j].find('=') == std::string::npos)
+         {
+         name = arg_list[j];
+         value = "true";
+         }
+      else
+         {
+         std::vector<std::string> name_and_value = split_on(arg_list[j], '=');
+         name = name_and_value[0];
+         value = name_and_value[1];
+         }
+
+      bool is_on =
+         (value == "1" || value == "true" || value == "yes" || value == "on");
+
+      if(name == "thread_safe")
+         thread_safe = is_on;
+      }
+
+   try
+      {
+      /*
+      This two stage initialization process is because Library_State's
+      constructor will implicitly refer to global state through the
+      allocators and so for, so global_state() has to be a valid
+      reference before initialize() can be called. Yeah, gross.
+      */
+      set_global_state(new Library_State);
+
+      global_state().initialize(thread_safe);
+      }
+   catch(...)
+      {
+      deinitialize();
+      throw;
+      }
+   }
+
+/*
+* Library Shutdown
+*/
+void LibraryInitializer::deinitialize()
+   {
+   set_global_state(0);
+   }
+
+}