Improve error message when if_indextoname() fails.

diff --git a/sbin/iked/pfkey.c b/sbin/iked/pfkey.c
index 80a931d..ac9e79c 100644 (file)
--- a/sbin/iked/pfkey.c
+++ b/sbin/iked/pfkey.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: pfkey.c,v 1.83 2023/08/11 11:24:55 tobhe Exp $        */
+/*     $OpenBSD: pfkey.c,v 1.84 2023/08/14 12:02:02 tobhe Exp $        */
 
 /*
  * Copyright (c) 2010-2013 Reyk Floeter <reyk@openbsd.org>
@@ -697,9 +697,9 @@ pfkey_sa(struct iked *env, uint8_t satype, uint8_t action, struct iked_childsa *
        if (pol->pol_flags & IKED_POLICY_ROUTING) {
                sa_iface.sadb_x_iface_exttype = SADB_X_EXT_IFACE;
                sa_iface.sadb_x_iface_len = sizeof(sa_iface) / 8;
-               if (if_indextoname(pol->pol_iface, iface) == NULL) {
-                       log_warnx("%s: unsupported interface %s",
-                           __func__, iface);
+               if (if_indextoname(pol->pol_iface, iface) == 0) {
+                       log_warn("%s: unsupported interface %d",
+                           __func__, pol->pol_iface);
                        return (-1);
                }
                ifminor = strtonum(iface + strlen("sec"), 0, UINT_MAX, &errstr);