|
|
From ea1afcebbc2e1a87dddee231b48da5a891461ff9 Mon Sep 17 00:00:00 2001
|
|
|
From: Brent Cook <busterb@gmail.com>
|
|
|
Date: Mon, 8 Jun 2020 06:53:10 -0500
|
|
|
Subject: [PATCH 16/18] Don't retry DNS if Checking Disable flag is not
|
|
|
available.
|
|
|
|
|
|
---
|
|
|
src/usr.sbin/ntpd/config.c | 4 +++-
|
|
|
src/usr.sbin/ntpd/ntp_dns.c | 8 +++++---
|
|
|
2 files changed, 8 insertions(+), 4 deletions(-)
|
|
|
|
|
|
diff --git a/src/usr.sbin/ntpd/config.c b/src/usr.sbin/ntpd/config.c
|
|
|
index 856c3147cc..fc9df84bc4 100644
|
|
|
--- a/src/usr.sbin/ntpd/config.c
|
|
|
+++ b/src/usr.sbin/ntpd/config.c
|
|
|
@@ -138,9 +138,10 @@ int
|
|
|
host_dns(const char *s, int synced, struct ntp_addr **hn)
|
|
|
{
|
|
|
int error, save_opts;
|
|
|
-
|
|
|
+
|
|
|
log_debug("trying to resolve %s", s);
|
|
|
error = host_dns1(s, hn, 0);
|
|
|
+#ifdef RES_USE_CD
|
|
|
if (!synced && error <= 0) {
|
|
|
log_debug("no luck, trying to resolve %s without checking", s);
|
|
|
save_opts = _res.options;
|
|
|
@@ -148,6 +149,7 @@ host_dns(const char *s, int synced, struct ntp_addr **hn)
|
|
|
error = host_dns1(s, hn, 1);
|
|
|
_res.options = save_opts;
|
|
|
}
|
|
|
+#endif
|
|
|
log_debug("resolve %s done: %d", s, error);
|
|
|
return error;
|
|
|
}
|
|
|
diff --git a/src/usr.sbin/ntpd/ntp_dns.c b/src/usr.sbin/ntpd/ntp_dns.c
|
|
|
index 439e7ab8a9..e74a8abe4d 100644
|
|
|
--- a/src/usr.sbin/ntpd/ntp_dns.c
|
|
|
+++ b/src/usr.sbin/ntpd/ntp_dns.c
|
|
|
@@ -226,14 +226,16 @@ probe_root_ns(void)
|
|
|
old_options = _res.options;
|
|
|
_res.retrans = 1;
|
|
|
_res.retry = 1;
|
|
|
+#ifdef RES_USE_CD
|
|
|
_res.options |= RES_USE_CD;
|
|
|
-
|
|
|
+#endif
|
|
|
+
|
|
|
ret = res_query(".", C_IN, T_NS, buf, sizeof(buf));
|
|
|
|
|
|
_res.retrans = old_retrans;
|
|
|
_res.retry = old_retry;
|
|
|
_res.options = old_options;
|
|
|
-
|
|
|
+
|
|
|
return ret;
|
|
|
}
|
|
|
|
|
|
@@ -242,7 +244,7 @@ probe_root(void)
|
|
|
{
|
|
|
int n;
|
|
|
|
|
|
- n = probe_root_ns();
|
|
|
+ n = probe_root_ns();
|
|
|
if (n < 0) {
|
|
|
/* give programs like unwind a second chance */
|
|
|
sleep(1);
|
|
|
--
|
|
|
2.27.0
|
|
|
|