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-rw-r--r--package/utils/busybox/patches/230-ntpd_delayed_resolve.patch48
1 files changed, 48 insertions, 0 deletions
diff --git a/package/utils/busybox/patches/230-ntpd_delayed_resolve.patch b/package/utils/busybox/patches/230-ntpd_delayed_resolve.patch
new file mode 100644
index 0000000..b0af08e
--- /dev/null
+++ b/package/utils/busybox/patches/230-ntpd_delayed_resolve.patch
@@ -0,0 +1,48 @@
+--- a/networking/ntpd.c
++++ b/networking/ntpd.c
+@@ -265,6 +265,7 @@ typedef struct {
+ typedef struct {
+ len_and_sockaddr *p_lsa;
+ char *p_dotted;
++ char *p_hostname;
+ int p_fd;
+ int datapoint_idx;
+ uint32_t lastpkt_refid;
+@@ -766,8 +767,9 @@ add_peers(const char *s)
+ peer_t *p;
+
+ p = xzalloc(sizeof(*p));
+- p->p_lsa = xhost2sockaddr(s, 123);
+- p->p_dotted = xmalloc_sockaddr2dotted_noport(&p->p_lsa->u.sa);
++ p->p_hostname = s;
++ p->p_lsa = NULL;
++ p->p_dotted = NULL;
+ p->p_fd = -1;
+ p->p_xmt_msg.m_status = MODE_CLIENT | (NTP_VERSION << 3);
+ p->next_action_time = G.cur_time; /* = set_next(p, 0); */
+@@ -816,6 +818,25 @@ send_query_to_peer(peer_t *p)
+ *
+ * Uncomment this and use strace to see it in action:
+ */
++
++ /* See if the peer hostname already resolved yet, if not, retry to resolv and return on failure */
++ if (!p->p_lsa)
++ {
++ p->p_lsa = host2sockaddr(p->p_hostname, 123);
++
++ if (p->p_lsa)
++ {
++ p->p_dotted = xmalloc_sockaddr2dotted_noport(&p->p_lsa->u.sa);
++ VERB1 bb_error_msg("resolved peer %s to %s", p->p_hostname, p->p_dotted);
++ }
++ else
++ {
++ set_next(p, RETRY_INTERVAL);
++ VERB1 bb_error_msg("could not resolve peer %s, skipping", p->p_hostname);
++ return;
++ }
++ }
++
+ #define PROBE_LOCAL_ADDR /* { len_and_sockaddr lsa; lsa.len = LSA_SIZEOF_SA; getsockname(p->query.fd, &lsa.u.sa, &lsa.len); } */
+
+ if (p->p_fd == -1) {