From: Felix Fietkau <nbd@openwrt.org>
Date: Mon, 5 Sep 2011 04:09:32 +0000 (+0200)
Subject: add blob_attr_equal() for comparing attributes
X-Git-Url: http://git.archive.openwrt.org/?p=project%2Flibubox.git;a=commitdiff_plain;h=b1c320132e5adac3c3ba5545c66123b0618f8cd0;hp=1d3e4ccb6ae544dfc75227434c42b1ee74b86d4f

add blob_attr_equal() for comparing attributes
---

diff --git a/blob.h b/blob.h
index 6e73093..80ad7d0 100644
--- a/blob.h
+++ b/blob.h
@@ -213,6 +213,15 @@ blob_next(const struct blob_attr *attr)
 	return (struct blob_attr *) ((char *) attr + blob_pad_len(attr));
 }
 
+static inline bool
+blob_attr_equal(const struct blob_attr *a1, const struct blob_attr *a2)
+{
+	if (blob_pad_len(a1) != blob_pad_len(a2))
+		return false;
+
+	return !memcmp(a1, a2, blob_pad_len(a1));
+}
+
 extern int blob_buf_init(struct blob_buf *buf, int id);
 extern void blob_buf_free(struct blob_buf *buf);
 extern struct blob_attr *blob_new(struct blob_buf *buf, int id, int payload);