windows: Add utils_init/deinit functions to initialize Winsock2

src/libstrongswan/Makefile.am

@@ -112,6 +112,8 @@ AM_YFLAGS = -v -d
 
 if USE_WINDOWS
   libstrongswan_la_LIBADD += -lws2_32
+  libstrongswan_la_SOURCES += \
+    utils/windows.c
 endif
 
 if USE_DBGHELP

src/libstrongswan/library.c

@@ -146,6 +146,7 @@ void library_deinit()
 	arrays_deinit();
 	threads_deinit();
 	backtrace_deinit();
+	utils_deinit();
 
 	free((void*)this->public.ns);
 	free(this);
@@ -259,6 +260,7 @@ bool library_init(char *settings, const char *namespace)
 	);
 	lib = &this->public;
 
+	utils_init();
 	backtrace_init();
 	threads_init();
 	arrays_init();

src/libstrongswan/utils/utils.c

@@ -47,6 +47,26 @@ ENUM(status_names, SUCCESS, NEED_MORE,
 	"NEED_MORE",
 );
 
+/**
+ * See header
+ */
+void utils_init()
+{
+#ifdef WIN32
+	windows_init();
+#endif /* WIN32 */
+}
+
+/**
+ * See header
+ */
+void utils_deinit()
+{
+#ifdef WIN32
+	windows_deinit();
+#endif /* WIN32 */
+}
+
 /**
  * Described in header.
  */

src/libstrongswan/utils/utils.h

@@ -82,6 +82,16 @@
 #include "enum.h"
 #include "utils/strerror.h"
 
+/**
+ * Initialize utility functions
+ */
+void utils_init();
+
+/**
+ * Deinitialize utility functions
+ */
+void utils_deinit();
+
 /**
  * Helper function that compares two strings for equality
  */

src/libstrongswan/utils/windows.c

@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2013 Martin Willi
+ * Copyright (C) 2013 revosec AG
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+#include "utils.h"
+
+/**
+ * See header
+ */
+void windows_init()
+{
+	WSADATA wsad;
+
+	/* initialize winsock2 */
+	WSAStartup(MAKEWORD(2, 2), &wsad);
+}
+
+/**
+ * See header
+ */
+void windows_deinit()
+{
+	WSACleanup();
+}

src/libstrongswan/utils/windows.h

@@ -41,6 +41,16 @@
 typedef u_int uid_t;
 typedef u_int gid_t;
 
+/**
+ * Initialize Windows libraries
+ */
+void windows_init();
+
+/**
+ * Deinitialize windows libraries
+ */
+void windows_deinit();
+
 /**
  * Replacement for random(3)
  */