sandbox: eth-raw: Prevent possible buffer overflow

Instead of strcpy which is unbounded use strlcpy to ensure that the
receiving buffer cannot be overflowed.

This issue found by Smatch.

Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>

diff --git a/drivers/net/sandbox-raw-bus.c b/drivers/net/sandbox-raw-bus.c
index 15670d6..c698a07 100644 (file)
--- a/drivers/net/sandbox-raw-bus.c
+++ b/drivers/net/sandbox-raw-bus.c
@@ -42,7 +42,7 @@ static int eth_raw_bus_post_bind(struct udevice *dev)
                device_probe(child);
                priv = dev_get_priv(child);
                if (priv) {
-                       strcpy(priv->host_ifname, i->if_name);
+                       strlcpy(priv->host_ifname, i->if_name, IFNAMSIZ);
                        priv->host_ifindex = i->if_index;
                        priv->local = local;
                }