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-rw-r--r--plugins/check_time.c374
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diff --git a/plugins/check_time.c b/plugins/check_time.c
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+++ b/plugins/check_time.c
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+/*****************************************************************************
+*
+* Monitoring check_time plugin
+*
+* License: GPL
+* Copyright (c) 1999-2007 Monitoring Plugins Development Team
+*
+* Description:
+*
+* This file contains the check_time plugin
+*
+* This plugin will check the time difference with the specified host.
+*
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program. If not, see <http://www.gnu.org/licenses/>.
+*
+*
+*****************************************************************************/
+
+const char *progname = "check_time";
+const char *copyright = "1999-2007";
+const char *email = "devel@monitoring-plugins.org";
+
+#include "common.h"
+#include "netutils.h"
+#include "utils.h"
+
+enum {
+ TIME_PORT = 37
+};
+
+#define UNIX_EPOCH 2208988800UL
+
+uint32_t raw_server_time;
+unsigned long server_time, diff_time;
+int warning_time = 0;
+int check_warning_time = FALSE;
+int critical_time = 0;
+int check_critical_time = FALSE;
+unsigned long warning_diff = 0;
+int check_warning_diff = FALSE;
+unsigned long critical_diff = 0;
+int check_critical_diff = FALSE;
+int server_port = TIME_PORT;
+char *server_address = NULL;
+int use_udp = FALSE;
+
+int process_arguments (int, char **);
+void print_help (void);
+void print_usage (void);
+
+int
+main (int argc, char **argv)
+{
+ int sd;
+ int result = STATE_UNKNOWN;
+ time_t conntime;
+
+ setlocale (LC_ALL, "");
+ bindtextdomain (PACKAGE, LOCALEDIR);
+ textdomain (PACKAGE);
+
+ /* Parse extra opts if any */
+ argv=np_extra_opts (&argc, argv, progname);
+
+ if (process_arguments (argc, argv) == ERROR)
+ usage4 (_("Could not parse arguments"));
+
+ /* initialize alarm signal handling */
+ signal (SIGALRM, socket_timeout_alarm_handler);
+
+ /* set socket timeout */
+ alarm (socket_timeout);
+ time (&start_time);
+
+ /* try to connect to the host at the given port number */
+ if (use_udp) {
+ result = my_udp_connect (server_address, server_port, &sd);
+ } else {
+ result = my_tcp_connect (server_address, server_port, &sd);
+ }
+
+ if (result != STATE_OK) {
+ if (check_critical_time == TRUE)
+ result = STATE_CRITICAL;
+ else if (check_warning_time == TRUE)
+ result = STATE_WARNING;
+ else
+ result = STATE_UNKNOWN;
+ die (result,
+ _("TIME UNKNOWN - could not connect to server %s, port %d\n"),
+ server_address, server_port);
+ }
+
+ if (use_udp) {
+ if (send (sd, "", 0, 0) < 0) {
+ if (check_critical_time == TRUE)
+ result = STATE_CRITICAL;
+ else if (check_warning_time == TRUE)
+ result = STATE_WARNING;
+ else
+ result = STATE_UNKNOWN;
+ die (result,
+ _("TIME UNKNOWN - could not send UDP request to server %s, port %d\n"),
+ server_address, server_port);
+ }
+ }
+
+ /* watch for the connection string */
+ result = recv (sd, (void *)&raw_server_time, sizeof (raw_server_time), 0);
+
+ /* close the connection */
+ close (sd);
+
+ /* reset the alarm */
+ time (&end_time);
+ alarm (0);
+
+ /* return a WARNING status if we couldn't read any data */
+ if (result <= 0) {
+ if (check_critical_time == TRUE)
+ result = STATE_CRITICAL;
+ else if (check_warning_time == TRUE)
+ result = STATE_WARNING;
+ else
+ result = STATE_UNKNOWN;
+ die (result,
+ _("TIME UNKNOWN - no data received from server %s, port %d\n"),
+ server_address, server_port);
+ }
+
+ result = STATE_OK;
+
+ conntime = (end_time - start_time);
+ if (check_critical_time == TRUE && conntime > critical_time)
+ result = STATE_CRITICAL;
+ else if (check_warning_time == TRUE && conntime > warning_time)
+ result = STATE_WARNING;
+
+ if (result != STATE_OK)
+ die (result, _("TIME %s - %d second response time|%s\n"),
+ state_text (result), (int)conntime,
+ perfdata ("time", (long)conntime, "s",
+ check_warning_time, (long)warning_time,
+ check_critical_time, (long)critical_time,
+ TRUE, 0, FALSE, 0));
+
+ server_time = ntohl (raw_server_time) - UNIX_EPOCH;
+ if (server_time > (unsigned long)end_time)
+ diff_time = server_time - (unsigned long)end_time;
+ else
+ diff_time = (unsigned long)end_time - server_time;
+
+ if (check_critical_diff == TRUE && diff_time > critical_diff)
+ result = STATE_CRITICAL;
+ else if (check_warning_diff == TRUE && diff_time > warning_diff)
+ result = STATE_WARNING;
+
+ printf (_("TIME %s - %lu second time difference|%s %s\n"),
+ state_text (result), diff_time,
+ perfdata ("time", (long)conntime, "s",
+ check_warning_time, (long)warning_time,
+ check_critical_time, (long)critical_time,
+ TRUE, 0, FALSE, 0),
+ perfdata ("offset", diff_time, "s",
+ check_warning_diff, warning_diff,
+ check_critical_diff, critical_diff,
+ TRUE, 0, FALSE, 0));
+ return result;
+}
+
+
+
+/* process command-line arguments */
+int
+process_arguments (int argc, char **argv)
+{
+ int c;
+
+ int option = 0;
+ static struct option longopts[] = {
+ {"hostname", required_argument, 0, 'H'},
+ {"warning-variance", required_argument, 0, 'w'},
+ {"critical-variance", required_argument, 0, 'c'},
+ {"warning-connect", required_argument, 0, 'W'},
+ {"critical-connect", required_argument, 0, 'C'},
+ {"port", required_argument, 0, 'p'},
+ {"udp", no_argument, 0, 'u'},
+ {"timeout", required_argument, 0, 't'},
+ {"version", no_argument, 0, 'V'},
+ {"help", no_argument, 0, 'h'},
+ {0, 0, 0, 0}
+ };
+
+ if (argc < 2)
+ usage ("\n");
+
+ for (c = 1; c < argc; c++) {
+ if (strcmp ("-to", argv[c]) == 0)
+ strcpy (argv[c], "-t");
+ else if (strcmp ("-wd", argv[c]) == 0)
+ strcpy (argv[c], "-w");
+ else if (strcmp ("-cd", argv[c]) == 0)
+ strcpy (argv[c], "-c");
+ else if (strcmp ("-wt", argv[c]) == 0)
+ strcpy (argv[c], "-W");
+ else if (strcmp ("-ct", argv[c]) == 0)
+ strcpy (argv[c], "-C");
+ }
+
+ while (1) {
+ c = getopt_long (argc, argv, "hVH:w:c:W:C:p:t:u", longopts,
+ &option);
+
+ if (c == -1 || c == EOF)
+ break;
+
+ switch (c) {
+ case '?': /* print short usage statement if args not parsable */
+ usage5 ();
+ case 'h': /* help */
+ print_help ();
+ exit (STATE_UNKNOWN);
+ case 'V': /* version */
+ print_revision (progname, NP_VERSION);
+ exit (STATE_UNKNOWN);
+ case 'H': /* hostname */
+ if (is_host (optarg) == FALSE)
+ usage2 (_("Invalid hostname/address"), optarg);
+ server_address = optarg;
+ break;
+ case 'w': /* warning-variance */
+ if (is_intnonneg (optarg)) {
+ warning_diff = strtoul (optarg, NULL, 10);
+ check_warning_diff = TRUE;
+ }
+ else if (strspn (optarg, "0123456789:,") > 0) {
+ if (sscanf (optarg, "%lu%*[:,]%d", &warning_diff, &warning_time) == 2) {
+ check_warning_diff = TRUE;
+ check_warning_time = TRUE;
+ }
+ else {
+ usage4 (_("Warning thresholds must be a positive integer"));
+ }
+ }
+ else {
+ usage4 (_("Warning threshold must be a positive integer"));
+ }
+ break;
+ case 'c': /* critical-variance */
+ if (is_intnonneg (optarg)) {
+ critical_diff = strtoul (optarg, NULL, 10);
+ check_critical_diff = TRUE;
+ }
+ else if (strspn (optarg, "0123456789:,") > 0) {
+ if (sscanf (optarg, "%lu%*[:,]%d", &critical_diff, &critical_time) ==
+ 2) {
+ check_critical_diff = TRUE;
+ check_critical_time = TRUE;
+ }
+ else {
+ usage4 (_("Critical thresholds must be a positive integer"));
+ }
+ }
+ else {
+ usage4 (_("Critical threshold must be a positive integer"));
+ }
+ break;
+ case 'W': /* warning-connect */
+ if (!is_intnonneg (optarg))
+ usage4 (_("Warning threshold must be a positive integer"));
+ else
+ warning_time = atoi (optarg);
+ check_warning_time = TRUE;
+ break;
+ case 'C': /* critical-connect */
+ if (!is_intnonneg (optarg))
+ usage4 (_("Critical threshold must be a positive integer"));
+ else
+ critical_time = atoi (optarg);
+ check_critical_time = TRUE;
+ break;
+ case 'p': /* port */
+ if (!is_intnonneg (optarg))
+ usage4 (_("Port must be a positive integer"));
+ else
+ server_port = atoi (optarg);
+ break;
+ case 't': /* timeout */
+ if (!is_intnonneg (optarg))
+ usage2 (_("Timeout interval must be a positive integer"), optarg);
+ else
+ socket_timeout = atoi (optarg);
+ break;
+ case 'u': /* udp */
+ use_udp = TRUE;
+ }
+ }
+
+ c = optind;
+ if (server_address == NULL) {
+ if (argc > c) {
+ if (is_host (argv[c]) == FALSE)
+ usage2 (_("Invalid hostname/address"), optarg);
+ server_address = argv[c];
+ }
+ else {
+ usage4 (_("Hostname was not supplied"));
+ }
+ }
+
+ return OK;
+}
+
+
+
+void
+print_help (void)
+{
+ char *myport;
+ xasprintf (&myport, "%d", TIME_PORT);
+
+ print_revision (progname, NP_VERSION);
+
+ printf ("Copyright (c) 1999 Ethan Galstad\n");
+ printf (COPYRIGHT, copyright, email);
+
+ printf ("%s\n", _("This plugin will check the time on the specified host."));
+
+ printf ("\n\n");
+
+ print_usage ();
+
+ printf (UT_HELP_VRSN);
+ printf (UT_EXTRA_OPTS);
+
+ printf (UT_HOST_PORT, 'p', myport);
+
+ printf (" %s\n", "-u, --udp");
+ printf (" %s\n", _("Use UDP to connect, not TCP"));
+ printf (" %s\n", "-w, --warning-variance=INTEGER");
+ printf (" %s\n", _("Time difference (sec.) necessary to result in a warning status"));
+ printf (" %s\n", "-c, --critical-variance=INTEGER");
+ printf (" %s\n", _("Time difference (sec.) necessary to result in a critical status"));
+ printf (" %s\n", "-W, --warning-connect=INTEGER");
+ printf (" %s\n", _("Response time (sec.) necessary to result in warning status"));
+ printf (" %s\n", "-C, --critical-connect=INTEGER");
+ printf (" %s\n", _("Response time (sec.) necessary to result in critical status"));
+
+ printf (UT_CONN_TIMEOUT, DEFAULT_SOCKET_TIMEOUT);
+
+ printf (UT_SUPPORT);
+}
+
+
+
+void
+print_usage (void)
+{
+ printf ("%s\n", _("Usage:"));
+ printf ("%s -H <host_address> [-p port] [-u] [-w variance] [-c variance]\n",progname);
+ printf (" [-W connect_time] [-C connect_time] [-t timeout]\n");
+}
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