blobmsg: allow BLOBMSG_TYPE_UNSPEC attributes, treat them as null for JSON conversion

[project/libubox.git] / blobmsg.c

diff --git a/blobmsg.c b/blobmsg.c
index e04fa53..8e2d73a 100644 (file)
--- a/blobmsg.c
+++ b/blobmsg.c
@@ -21,6 +21,7 @@ static const int blob_type[__BLOBMSG_TYPE_LAST] = {
        [BLOBMSG_TYPE_INT32] = BLOB_ATTR_INT32,
        [BLOBMSG_TYPE_INT64] = BLOB_ATTR_INT64,
        [BLOBMSG_TYPE_STRING] = BLOB_ATTR_STRING,
+       [BLOBMSG_TYPE_UNSPEC] = BLOB_ATTR_BINARY,
 };
 
 static uint16_t
@@ -52,7 +53,7 @@ bool blobmsg_check_attr(const struct blob_attr *attr, bool name)
        len = blobmsg_data_len(attr);
        data = blobmsg_data(attr);
 
-       if (!id || id > BLOBMSG_TYPE_LAST)
+       if (id > BLOBMSG_TYPE_LAST)
                return false;
 
        if (!blob_type[id])