confile: cleanup get_config_net_ipv6_gateway()

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

confile: cleanup get_config_net_ipv6_gateway()
79b7346e · Christian Brauner · a6ad2ac5 · 79b7346e
Unverified Commit 79b7346e authored Dec 09, 2020 by Christian Brauner
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confile.c src/lxc/confile.c +3 -2

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--- a/src/lxc/confile.c
+++ b/src/lxc/confile.c
@@ -5647,14 +5647,15 @@ static int get_config_net_ipv6_gateway(const char *key, char *retv, int inlen,
 		memset(retv, 0, inlen);

 	if (!netdev)
-		return -1;
+		return ret_errno(EINVAL);

 	if (netdev->ipv6_gateway_auto) {
 		strprint(retv, inlen, "auto");
 	} else if (netdev->ipv6_gateway_dev) {
 		strprint(retv, inlen, "dev");
 	} else if (netdev->ipv6_gateway) {
-		inet_ntop(AF_INET6, netdev->ipv6_gateway, buf, sizeof(buf));
+		if (!inet_ntop(AF_INET6, netdev->ipv6_gateway, buf, sizeof(buf)))
+			return -errno;
 		strprint(retv, inlen, "%s", buf);
 	}