confile: cleanup get_config_net_ipv4_gateway()

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

confile: cleanup get_config_net_ipv4_gateway()
42ceb011 · Christian Brauner · 9b2c4cab · 42ceb011
Unverified Commit 42ceb011 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
@@ -5553,14 +5553,15 @@ static int get_config_net_ipv4_gateway(const char *key, char *retv, int inlen,
 		memset(retv, 0, inlen);
 	if (!netdev)
-		return -1;
+		return ret_errno(EINVAL);
 	if (netdev->ipv4_gateway_auto) {
 		strprint(retv, inlen, "auto");
 	} else if (netdev->ipv4_gateway_dev) {
 		strprint(retv, inlen, "dev");
 	} else if (netdev->ipv4_gateway) {
-		inet_ntop(AF_INET, netdev->ipv4_gateway, buf, sizeof(buf));
+		if (!inet_ntop(AF_INET, netdev->ipv4_gateway, buf, sizeof(buf)))
+			return -errno;
 		strprint(retv, inlen, "%s", buf);
 	}