dnssec: don't qsort() empty hashlist

(cherry picked from commit 6bbb0b8e42)
2019-11-05 09:48:51 +01:00
parent aaded0efe0
commit 38866cb5c4
1 changed files with 4 additions and 1 deletions
@@ -794,7 +794,10 @@ hashlist_comp(const void *a, const void *b) {

 static void
 hashlist_sort(hashlist_t *l) {
-	qsort(l->hashbuf, l->entries, l->length, hashlist_comp);
+	INSIST(l->hashbuf != NULL || l->length == 0);
+	if (l->length > 0) {
+		qsort(l->hashbuf, l->entries, l->length, hashlist_comp);
+	}
 }

 static bool