From: Felix Fietkau <nbd@openwrt.org>
Date: Sat, 29 Jan 2011 17:16:12 +0000 (+0100)
Subject: add blobmsg_for_each_attr
X-Git-Url: http://git.archive.openwrt.org/?p=project%2Flibubox.git;a=commitdiff_plain;h=2d9f917d000025eaebcccf9fca758aa8b9a4763c

add blobmsg_for_each_attr
---

diff --git a/blobmsg.h b/blobmsg.h
index 95732e3..aa1f314 100644
--- a/blobmsg.h
+++ b/blobmsg.h
@@ -141,4 +141,10 @@ static inline int blobmsg_buf_init(struct blob_buf *buf)
 
 char *blobmsg_format_json(struct blob_attr *attr);
 
+#define blobmsg_for_each_attr(pos, attr, rem) \
+	for (rem = blobmsg_data_len(attr), pos = blobmsg_data(attr); \
+		 (blob_pad_len(pos) <= rem) && \
+		 (blob_pad_len(pos) >= sizeof(struct blob_attr)); \
+		 rem -= blob_pad_len(pos), pos = blob_next(pos))
+
 #endif