From: Hans Dedecker <dedeckeh@gmail.com>
Date: Tue, 5 Aug 2014 08:22:26 +0000 (+0000)
Subject: netifd: fix incorrect number of bytes memset in clear_if_addr
X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fnetifd.git;a=commitdiff_plain;h=e4aebda4d774d0b92f4c95c4490745aaedf4cd35

netifd: fix incorrect number of bytes memset in clear_if_addr

Fix clear_if_addr for IPv6 addresses as an incorrect number of bytes were memset due to wrong sizeof argument

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
---

diff --git a/interface-ip.c b/interface-ip.c
index 587826a..8d4434b 100644
--- a/interface-ip.c
+++ b/interface-ip.c
@@ -75,8 +75,8 @@ clear_if_addr(union if_addr *a, int mask)
 	uint8_t m_clear = (1 << (m_bytes * 8 - mask)) - 1;
 	uint8_t *p = (uint8_t *) a;
 
-	if (m_bytes < sizeof(a))
-		memset(p + m_bytes, 0, sizeof(a) - m_bytes);
+	if (m_bytes < sizeof(*a))
+		memset(p + m_bytes, 0, sizeof(*a) - m_bytes);
 
 	p[m_bytes - 1] &= ~m_clear;
 }