add blobmsg_list_equal()

diff --git a/utils.c b/utils.c
index cff67bddfa61c875ce68d544b5829dca9c584376..cf31f87cc0d1ea42a1af47abcc5dc558f110bd39 100644 (file)
--- 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 ce9d9ddf1874be5466dabee8b53a0b03cd851f83..b17f5f687526d1b5d7902f49a90ca2f91786787a 100644 (file)
--- 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