ntpd: allow peer-less (standalone stratum 1 server) operation
Based on patch by Jean-Christophe Dubois (jcd@tribudubois.net)
function old new delta
ntp_init 384 399 +15
recv_and_process_client_pkt 469 480 +11
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/networking/ntpd.c b/networking/ntpd.c
index 6707e9b..ca4afa0 100644
--- a/networking/ntpd.c
+++ b/networking/ntpd.c
@@ -1765,6 +1765,10 @@
/* this time was obtained between poll() and recv() */
msg.m_rectime = d_to_lfp(G.cur_time);
msg.m_xmttime = d_to_lfp(gettime1900d()); /* this instant */
+ if (G.peer_cnt == 0) {
+ /* we have no peers: "stratum 1 server" mode. reftime = our own time */
+ G.reftime = G.cur_time;
+ }
msg.m_reftime = d_to_lfp(G.reftime);
msg.m_orgtime = query_xmttime;
msg.m_rootdelay = d_to_sfp(G.rootdelay);
@@ -1902,8 +1906,13 @@
bb_show_usage();
// if (opts & OPT_x) /* disable stepping, only slew is allowed */
// G.time_was_stepped = 1;
- while (peers)
- add_peers(llist_pop(&peers));
+ if (peers) {
+ while (peers)
+ add_peers(llist_pop(&peers));
+ } else {
+ /* -l but no peers: "stratum 1 server" mode */
+ G.stratum = 1;
+ }
if (!(opts & OPT_n)) {
bb_daemonize_or_rexec(DAEMON_DEVNULL_STDIO, argv);
logmode = LOGMODE_NONE;