vis

commit a3c632e3c78a0403697204cf1c880ba96c97151a
parent b5271a55afb504854af8fd96b0ab6870aa3d0a98
Author: Marc André Tanner <mat@brain-dump.org>
Date:   Tue, 20 Oct 2020 15:32:16 +0200

text: avoid invalid pointer arithmetic

Diffstat:
M
text.c
 | 
4
++--

1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/text.c b/text.c
@@ -803,8 +803,8 @@ static bool iterator_init(Iterator *it, size_t pos, Piece *p, size_t off) {
 		.pos = pos,
 		.piece = p,
 		.start = p ? p->data : NULL,
-		.end = p ? p->data + p->len : NULL,
-		.text = p ? p->data + off : NULL,
+		.end = p && p->data ? p->data + p->len : NULL,
+		.text = p && p->data ? p->data + off : NULL,
 	};
 	*it = iter;
 	return text_iterator_valid(it);