Merge pull request #11 from grddev/master

Avoid segfault when arguments contain format strings

Author: headius

spec/launcher_spec.rb

@@ -255,4 +255,8 @@
   it "should print the version" do
     jruby_launcher("-Xversion 2>&1").should =~ /Launcher Version #{JRubyLauncher::VERSION}/
   end
+
+  it "should not crash on format-strings" do
+    jruby_launcher_args("-e %s%s%s%s%s 2>&1").should include('-e', '%s%s%s%s%s')
+  end
 end

unixlauncher.cpp

@@ -71,7 +71,7 @@ int UnixLauncher::run(int argc, char* argv[], char* envp[]) {
 
     logMsg("Command line:");
     for (list<string>::iterator it = commandLine.begin(); it != commandLine.end(); ++it) {
-        logMsg(it->c_str());
+        logMsg("\t%s", it->c_str());
     }
 
     char** newArgv = convertToArgvArray(commandLine);