1 files changed, 26 insertions, 0 deletions
diff --git a/lib/common/filename_sane.c b/lib/common/filename_sane.c
new file mode 100644
index 0000000..6b497c3
--- /dev/null
+++ b/lib/common/filename_sane.c
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * filename_sane.c
+ *
+ * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
+ */
+#include "common.h"
+
+bool is_filename_sane(const char *name)
+{
+	if (name[0] == '.') {
+		if (name[1] == '\0')
+			return false;
+
+		if (name[1] == '.' && name[2] == '\0')
+			return false;
+	}
+
+	while (*name != '\0') {
+		if (*name == '/')
+			return false;
+		++name;
+	}
+
+	return true;
+}