Add a sanity check to id3_ucs4_length. Issue #6

Signed-off-by: Michael Moon <[email protected]>
tenacityteam · Oct 7, 2021 · 8bfecd7 · 8bfecd7
1 parent 464498c
commit 8bfecd7
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/ucs4.c b/ucs4.c
@@ -37,6 +37,9 @@ id3_ucs4_t const id3_ucs4_empty[] = { 0 };
  */
 id3_length_t id3_ucs4_length(id3_ucs4_t const *ucs4)
 {
+	if (!ucs4)
+		return 0;
+
   id3_ucs4_t const *ptr = ucs4;
 
   while (*ptr)