From a48c8c8a78028f7dc07ceb23c47a4ed31f0dfaa6 Mon Sep 17 00:00:00 2001 From: Brent Cook Date: Tue, 30 Dec 2014 09:10:22 -0600 Subject: [PATCH 03/12] Handle IPv6 DNS records on IPv4 networks more liberally Rather than fail on IPv4 only networks when seeing an IPv6 DNS record, just give a warning. Debian bug ID: 500676. Original Author: Stefan Praszalowicz --- src/usr.sbin/ntpd/client.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/src/usr.sbin/ntpd/client.c b/src/usr.sbin/ntpd/client.c index ced1a8b..3d4714e 100644 --- a/src/usr.sbin/ntpd/client.c +++ b/src/usr.sbin/ntpd/client.c @@ -138,9 +138,16 @@ client_query(struct ntp_peer *p) if (p->query->fd == -1) { struct sockaddr *sa = (struct sockaddr *)&p->addr->ss; - if ((p->query->fd = socket(p->addr->ss.ss_family, SOCK_DGRAM, - 0)) == -1) - fatal("client_query socket"); + p->query->fd = socket(p->addr->ss.ss_family, SOCK_DGRAM, 0); + if (p->query->fd == -1) { + if (errno == EAFNOSUPPORT) { + log_warn("client_query socket"); + client_nextaddr(p); + set_next(p, error_interval()); + return (-1); + } else + fatal("client_query socket"); + } if (p->rtable != -1 && setsockopt(p->query->fd, SOL_SOCKET, SO_RTABLE, -- 1.9.1