feat(utils): add new fs namespace with copy function

include/CMakeLists.txt

@@ -100,6 +100,7 @@ set(ENUMS_HEADER_FILES
 set(UTILS_HEADER_FILES
 	enum-generator.h
 	enum-mask.h
+	fs.h
 	general.h
 	magic-macros.h
 	traits.h

src/CMakeLists.txt

@@ -252,6 +252,7 @@ set(LINPHONE_CXX_OBJECTS_SOURCE_FILES
 	sal/refer-op.cpp
 	sal/register-op.cpp
 	sal/sal.cpp
+	utils/fs.cpp
 	utils/general.cpp
 	utils/payload-type-handler.cpp
 	utils/utils.cpp

src/utils/fs.cpp

@@ -0,0 +1,39 @@
+/*
+ * fs.cpp
+ * Copyright (C) 2010-2017 Belledonne Communications SARL
+ *
+ * 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.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <fstream>
+
+#include "linphone/utils/fs.h"
+
+// =============================================================================
+
+using namespace std;
+
+LINPHONE_BEGIN_NAMESPACE
+
+namespace Fs {
+	bool copy (const string &srcPath, const string &destPath) {
+		ifstream src(srcPath, ios::binary);
+		ofstream dest(destPath, ios::binary);
+		dest << src.rdbuf();
+		return !dest.fail();
+	}
+}
+
+LINPHONE_END_NAMESPACE