add blobmsg_list_equal()

2 files changed, 33 insertions, 0 deletions

diff --git a/utils.c b/utils.c
index cff67bd..cf31f87 100644
--- a/utils.c
+++ b/utils.c
@@ -53,3 +53,35 @@ blobmsg_list_free(struct blobmsg_list *list)
 		free(ptr);
 	}
 }
+
+bool
+blobmsg_list_equal(struct blobmsg_list *l1, struct blobmsg_list *l2)
+{
+	struct blobmsg_list_node *n1, *n2;
+	int count = l1->avl.count;
+
+	if (count != l2->avl.count)
+		return false;
+
+	n1 = avl_first_element(&l1->avl, n1, avl);
+	n2 = avl_first_element(&l2->avl, n2, avl);
+
+	while (count-- > 0) {
+		int len;
+
+		len = blob_len(n1->data);
+		if (len != blob_len(n2->data))
+			return false;
+
+		if (memcmp(n1->data, n2->data, len) != 0)
+			return false;
+
+		if (!count)
+			break;
+
+		n1 = avl_next_element(n1, avl);
+		n2 = avl_next_element(n2, avl);
+	}
+
+	return true;
+}
diff --git a/utils.h b/utils.h
index ce9d9dd..b17f5f6 100644
--- a/utils.h
+++ b/utils.h
@@ -25,5 +25,6 @@ struct blobmsg_list_node {
 void __blobmsg_list_init(struct blobmsg_list *list, int offset, int len);
 int blobmsg_list_fill(struct blobmsg_list *list, void *data, int len);
 void blobmsg_list_free(struct blobmsg_list *list);
+bool blobmsg_list_equal(struct blobmsg_list *l1, struct blobmsg_list *l2);
 
 #endif