1 files changed, 7 insertions, 0 deletions
diff --git a/src/files.c b/src/files.c
new file mode 100644
index 0000000..86d9be4
--- /dev/null
+++ b/src/files.c
@@ -0,0 +1,7 @@
+#include <string.h>
+
+const char *get_filename_ext(const char *filename) {
+  const char *dot = strrchr(filename, '.');
+  if(!dot || dot == filename) return "";
+  return dot + 1;
+}