The SIOCAIFADDR_IN6 ioctl could lose a race against another process

configuring the same IP.
I forgot to fix slaacd after fixing the same problem in dhcpleased.
Pointed out by afresh1

diff --git a/sbin/slaacd/slaacd.c b/sbin/slaacd/slaacd.c
index c01300f..0b31934 100644 (file)
--- a/sbin/slaacd/slaacd.c
+++ b/sbin/slaacd/slaacd.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: slaacd.c,v 1.62 2021/07/22 15:32:51 kn Exp $  */
+/*     $OpenBSD: slaacd.c,v 1.63 2021/07/27 08:15:11 florian Exp $     */
 
 /*
  * Copyright (c) 2017 Florian Obser <florian@openbsd.org>
@@ -660,7 +660,7 @@ configure_interface(struct imsg_configure_address *address)
        log_debug("%s: %s", __func__, if_name);
 
        if (ioctl(ioctl_sock, SIOCAIFADDR_IN6, &in6_addreq) == -1)
-               fatal("SIOCAIFADDR_IN6");
+               log_warn("SIOCAIFADDR_IN6");
 
        if (address->mtu) {
                struct ifreq     ifr;