From: Jouni Malinen <j@w1.fi>
Date: Sat, 16 Jan 2010 15:19:06 +0000 (+0200)
Subject: Make sure the resutl from readlink is properly null terminated
X-Git-Tag: hostap_0_7_1~2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=de1b2d143a561292e87c0b806fe508559c408f24;p=thirdparty%2Fhostap.git

Make sure the resutl from readlink is properly null terminated
---

diff --git a/src/drivers/linux_ioctl.c b/src/drivers/linux_ioctl.c
index f8061670a..0d6cf5416 100644
--- a/src/drivers/linux_ioctl.c
+++ b/src/drivers/linux_ioctl.c
@@ -186,7 +186,8 @@ int linux_br_get(char *brname, const char *ifname)
 	char path[128], brlink[128], *pos;
 	os_snprintf(path, sizeof(path), "/sys/class/net/%s/brport/bridge",
 		    ifname);
-	if (readlink(path, brlink, sizeof(brlink)) < 0)
+	os_memset(brlink, 0, sizeof(brlink));
+	if (readlink(path, brlink, sizeof(brlink) - 1) < 0)
 		return -1;
 	pos = os_strrchr(brlink, '/');
 	if (pos == NULL)