Do not create directories . and ..

Author: axic

Changelog.md

@@ -5,6 +5,7 @@ Features:
 
 Bugfixes:
  * Commandline interface: Always escape filenames (replace ``/``, ``:`` and ``.`` with ``_``).
+ * Commandline interface: Do not try creating paths ``.`` and ``..``.
  * Type system: Disallow arrays with negative length.
 
 ### 0.4.9 (2017-01-31)

solc/CommandLineInterface.cpp

@@ -461,7 +461,9 @@ void CommandLineInterface::createFile(string const& _fileName, string const& _da
 	namespace fs = boost::filesystem;
 	// create directory if not existent
 	fs::path p(m_args.at(g_argOutputDir).as<string>());
-	fs::create_directories(p);
+	// Do not try creating the directory if the first item is . or ..
+	if (p.filename() != "." && p.filename() != "..")
+		fs::create_directories(p);
 	string pathName = (p / _fileName).string();
 	ofstream outFile(pathName);
 	outFile << _data;