libubus: pull the variable length data array out of struct ubus_msghdr to fix builds with clang

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/libubus.h b/libubus.h
index 08f9c5b..f899ded 100644
--- a/libubus.h
+++ b/libubus.h
@@ -34,6 +34,12 @@ struct ubus_event_handler;
 struct ubus_subscriber;
 struct ubus_notify_request;
 
+static inline struct blob_attr *
+ubus_msghdr_data(struct ubus_msghdr *hdr)
+{
+	return (struct blob_attr *) (hdr + 1);
+}
+
 typedef void (*ubus_lookup_handler_t)(struct ubus_context *ctx,
 				      struct ubus_object_data *obj,
 				      void *priv);