system-linux: initialize ifreq struct before using it

Signed-off-by: Alin Nastac <alin.nastac@gmail.com>

diff --git a/system-linux.c b/system-linux.c
index 6778b1d56c949c4aefa4980bdccc48e31419ff8c..91888990440e953898bedaf8739303ee68072ed8 100644 (file)
--- a/system-linux.c
+++ b/system-linux.c
@@ -904,6 +904,8 @@ failure:
 int system_if_resolve(struct device *dev)
 {
        struct ifreq ifr;
+
+       memset(&ifr, 0, sizeof(ifr));
        strncpy(ifr.ifr_name, dev->ifname, sizeof(ifr.ifr_name) - 1);
        if (!ioctl(sock_ioctl, SIOCGIFINDEX, &ifr))
                return ifr.ifr_ifindex;