From: Thomas Graf <tgraf@suug.ch>
Date: Thu, 14 Mar 2013 13:41:12 +0000 (+0100)
Subject: addr: Reset unused portion of binary address in nl_addr_set_binary_addr()
X-Git-Tag: libnl3_2_22rc1~28
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f0f33c394b97341e824b5fdf62707fcd25ef84cc;p=thirdparty%2Flibnl.git

addr: Reset unused portion of binary address in nl_addr_set_binary_addr()

memset() the binary address before overwriting it with new data
to avoid leaving around old portions of the address.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
---

diff --git a/lib/addr.c b/lib/addr.c
index 9089be8..e75ef70 100644
--- a/lib/addr.c
+++ b/lib/addr.c
@@ -766,7 +766,10 @@ int nl_addr_set_binary_addr(struct nl_addr *addr, void *buf, size_t len)
 		return -NLE_RANGE;
 
 	addr->a_len = len;
-	memcpy(addr->a_addr, buf, len);
+	memset(addr->a_addr, 0, addr->a_maxsize);
+
+	if (len)
+		memcpy(addr->a_addr, buf, len);
 
 	return 0;
 }