Disable preferences menu if the config can't be written.

2 files changed, 13 insertions, 0 deletions

diff --git a/src/lib/config.cc b/src/lib/config.cc
index d7fd74449..e1d5b958d 100644
--- a/src/lib/config.cc
+++ b/src/lib/config.cc
@@ -1201,3 +1201,15 @@ Config::copy_and_link (boost::filesystem::path new_file) const
 	boost::filesystem::copy_file (config_file(), new_file, boost::filesystem::copy_option::overwrite_if_exists);
 	link (new_file);
 }
+
+bool
+Config::have_write_permission () const
+{
+	FILE* f = fopen_boost (config_file(), "r+");
+	if (!f) {
+		return false;
+	}
+
+	fclose (f);
+	return true;
+}
diff --git a/src/lib/config.h b/src/lib/config.h
index bcc46f8fa..80bb48d32 100644
--- a/src/lib/config.h
+++ b/src/lib/config.h
@@ -1002,6 +1002,7 @@ public:
 	void write_cinemas () const;
 	void link (boost::filesystem::path new_file) const;
 	void copy_and_link (boost::filesystem::path new_file) const;
+	bool have_write_permission () const;
 
 	void save_template (boost::shared_ptr<const Film> film, std::string name) const;
 	bool existing_template (std::string name) const;