ap

commit 7c3700015d907a650b876d543fe28407f8b9b5ea
parent 42af2efcf5845f8c892c83a979e1adf262a1bff1
Author: Jacob R. Edwards <jacobouno@protonmail.com>
Date:   Thu, 20 May 2021 15:49:04 -0700

Allow item_seek to be given a NULL item

This was the cause of invalid memory access in the findnum function.

Diffstat:
M
queue.c
 | 
2
++

1 file changed, 2 insertions(+), 0 deletions(-)
diff --git a/queue.c b/queue.c
@@ -77,6 +77,8 @@ item_pos(struct item *(*incr)(struct item *), struct item *item)
 struct item *
 item_seek(struct item *(*incr)(struct item *), struct item *item, unsigned int n)
 {
+	if (item == NULL)
+		return NULL;
 	while (n-- && (item = incr(item)))
 		;
 	return item;