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-rw-r--r--plugins/check_ntp_peer.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/plugins/check_ntp_peer.c b/plugins/check_ntp_peer.c
index 72cec63..6a4401c 100644
--- a/plugins/check_ntp_peer.c
+++ b/plugins/check_ntp_peer.c
@@ -299,6 +299,9 @@ int ntp_request(const char *host, double *offset, int *offset_result, double *ji
299 if(read(conn, &req, SIZEOF_NTPCM(req)) == -1) 299 if(read(conn, &req, SIZEOF_NTPCM(req)) == -1)
300 die(STATE_CRITICAL, "NTP CRITICAL: No response from NTP server\n"); 300 die(STATE_CRITICAL, "NTP CRITICAL: No response from NTP server\n");
301 DBG(print_ntp_control_message(&req)); 301 DBG(print_ntp_control_message(&req));
302 /* discard obviously invalid packets */
303 if (ntohs(req.count) > MAX_CM_SIZE)
304 die(STATE_CRITICAL, "NTP CRITICAL: Invalid paclet received from NTP server\n");
302 if (LI(req.flags) == LI_ALARM) li_alarm = 1; 305 if (LI(req.flags) == LI_ALARM) li_alarm = 1;
303 /* Each peer identifier is 4 bytes in the data section, which 306 /* Each peer identifier is 4 bytes in the data section, which
304 * we represent as a ntp_assoc_status_pair datatype. 307 * we represent as a ntp_assoc_status_pair datatype.