Fail rather than fatal on UTF-8 width 0.

2025-09-01 20:57:00 +00:00 · 2020-06-02 11:29:00 +00:00
parent f3931497f8
commit 822ee4e0a6
1 changed files with 2 additions and 0 deletions
--- a/utf8.c
+++ b/utf8.c
@ -135,6 +135,8 @@ utf8_from_data(const struct utf8_data *ud, utf8_char *uc)
 	union utf8_map	 m = { .uc = 0 };
 	u_int		 offset;

+	if (ud->width == 0)
+		goto fail;
 	if (ud->width != 1 && ud->width != 2)
 		fatalx("invalid UTF-8 width");
 	if (ud->size == 0)