diff options
| -rw-r--r-- | networking/ntpd.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/networking/ntpd.c b/networking/ntpd.c index d721fe8..44e7112 100644 --- a/networking/ntpd.c +++ b/networking/ntpd.c @@ -2025,6 +2025,15 @@ recv_and_process_peer_pkt(peer_t *p) offset = 0; + /* The below can happen as follows: + * = we receive two peer rsponses at once. + * = recv_and_process_peer_pkt(PEER1) -> update_local_clock() + * -> step_time() and it closes all other fds, sets all ->fd to -1. + * = recv_and_process_peer_pkt(PEER2) sees PEER2->fd == -1 + */ + if (p->p_fd < 0) + return; + /* We can recvfrom here and check from.IP, but some multihomed * ntp servers reply from their *other IP*. * TODO: maybe we should check at least what we can: from.port == 123? |