Code

check_smtp: Abort on missing/unexpected greeting
[nagiosplug.git] / plugins / check_time.c
index c38178052d6434b8ba5790520efadd00b3eea4c5..3dcc662cb579d30df5640f4940f48e255735c8a9 100644 (file)
@@ -1,56 +1,49 @@
-/******************************************************************************
-*
-* CHECK_TIME.C
-*
-* Program: Network time server plugin for Nagios
+/*****************************************************************************
+* 
+* Nagios check_time plugin
+* 
 * License: GPL
-* Copyright (c) 1999 Ethan Galstad (nagios@nagios.org)
-* Copyright (c) 2000 Karl DeBisschop (kdebisschop@users.sourceforge.net)
-*
-* $Id$
-*
+* Copyright (c) 1999-2007 Nagios Plugins Development Team
+* 
 * Description:
-*
-* This plugin will attempt to connect to the specified port
-* on the host.  Successul connects return STATE_OK, refusals
-* and timeouts return STATE_CRITICAL, other errors return
-* STATE_UNKNOWN.
-*
-* License Information:
-*
-* This program is free software; you can redistribute it and/or modify
+* 
+* 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 2 of the License, or
+* 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, write to the Free Software
-* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+* 
+* 
 *****************************************************************************/
 
-#include "config.h"
+const char *progname = "check_time";
+const char *copyright = "1999-2007";
+const char *email = "nagiosplug-devel@lists.sourceforge.net";
+
 #include "common.h"
 #include "netutils.h"
 #include "utils.h"
 
-#define PROGNAME "check_time"
-#define REVISION "$Revision$"
-#define COPYRIGHT "1999-2002"
-#define AUTHOR "Ethan Galstad"
-#define EMAIL "nagios@nagios.org"
-#define SUMMARY "Check time on the specified host.\n"
+enum {
+       TIME_PORT = 37
+};
 
-#define TIME_PORT      37
-#define UNIX_EPOCH     2208988800UL
+#define        UNIX_EPOCH 2208988800UL
 
-unsigned long server_time, raw_server_time;
-time_t diff_time;
+uint32_t raw_server_time;
+unsigned long server_time, diff_time;
 int warning_time = 0;
 int check_warning_time = FALSE;
 int critical_time = 0;
@@ -61,21 +54,28 @@ 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_usage (void);
 void print_help (void);
-
+void print_usage (void);
 
 int
 main (int argc, char **argv)
 {
        int sd;
-       int result;
+       int result = STATE_UNKNOWN;
+       time_t conntime;
 
-       if (process_arguments (argc, argv) != OK)
-               usage ("Invalid command arguments supplied\n");
+       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);
@@ -85,20 +85,40 @@ main (int argc, char **argv)
        time (&start_time);
 
        /* try to connect to the host at the given port number */
-       if (my_tcp_connect (server_address, server_port, &sd) != STATE_OK) {
+       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;
-               terminate (result,
-                                                        "TIME UNKNOWN - could not connect to server %s, port %d\n",
-                                                        server_address, server_port);
+               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, &raw_server_time, sizeof (raw_server_time), 0);
+       result = recv (sd, (void *)&raw_server_time, sizeof (raw_server_time), 0);
 
        /* close the connection */
        close (sd);
@@ -115,64 +135,73 @@ main (int argc, char **argv)
                        result = STATE_WARNING;
                else
                        result = STATE_UNKNOWN;
-               terminate (result,
-                                                        "TIME UNKNOWN - no data on recv() from server %s, port %d\n",
+               die (result,
+                                                        _("TIME UNKNOWN - no data received from server %s, port %d\n"),
                                                         server_address, server_port);
        }
 
        result = STATE_OK;
 
-       if (check_critical_time == TRUE && (end_time - start_time) > critical_time)
+       conntime = (end_time - start_time);
+       if (check_critical_time == TRUE && conntime > critical_time)
                result = STATE_CRITICAL;
-       else if (check_warning_time == TRUE
-                                        && (end_time - start_time) > warning_time) result = STATE_WARNING;
+       else if (check_warning_time == TRUE && conntime > warning_time)
+               result = STATE_WARNING;
 
        if (result != STATE_OK)
-               terminate (result, "TIME %s - %d second response time\n",
-                                                        state_text (result), (int) (end_time - start_time));
+               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 > end_time)
-               diff_time = server_time - end_time;
+       if (server_time > (unsigned long)end_time)
+               diff_time = server_time - (unsigned long)end_time;
        else
-               diff_time = end_time - server_time;
+               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\n", state_text (result),
-                                       diff_time);
+       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;
 
-#ifdef HAVE_GETOPT_H
-       int option_index = 0;
-       static struct option long_options[] = {
+       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}
        };
-#endif
 
        if (argc < 2)
                usage ("\n");
@@ -191,29 +220,24 @@ process_arguments (int argc, char **argv)
        }
 
        while (1) {
-#ifdef HAVE_GETOPT_H
-               c =
-                       getopt_long (argc, argv, "hVH:w:c:W:C:p:t:", long_options,
-                                                                        &option_index);
-#else
-               c = getopt (argc, argv, "hVH:w:c:W:C:p:t:");
-#endif
+               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 */
-                       usage3 ("Unknown argument", optopt);
+                       usage5 ();
                case 'h':                                                                       /* help */
                        print_help ();
                        exit (STATE_OK);
                case 'V':                                                                       /* version */
-                       print_revision (PROGNAME, REVISION);
+                       print_revision (progname, NP_VERSION);
                        exit (STATE_OK);
                case 'H':                                                                       /* hostname */
                        if (is_host (optarg) == FALSE)
-                               usage ("Invalid host name/address\n");
+                               usage2 (_("Invalid hostname/address"), optarg);
                        server_address = optarg;
                        break;
                case 'w':                                                                       /* warning-variance */
@@ -227,11 +251,11 @@ process_arguments (int argc, char **argv)
                                        check_warning_time = TRUE;
                                }
                                else {
-                                       usage ("Warning thresholds must be a nonnegative integer\n");
+                                       usage4 (_("Warning thresholds must be a positive integer"));
                                }
                        }
                        else {
-                               usage ("Warning threshold must be a nonnegative integer\n");
+                               usage4 (_("Warning threshold must be a positive integer"));
                        }
                        break;
                case 'c':                                                                       /* critical-variance */
@@ -246,35 +270,41 @@ process_arguments (int argc, char **argv)
                                        check_critical_time = TRUE;
                                }
                                else {
-                                       usage ("Critical thresholds must be a nonnegative integer\n");
+                                       usage4 (_("Critical thresholds must be a positive integer"));
                                }
                        }
                        else {
-                               usage ("Critical threshold must be a nonnegative integer\n");
+                               usage4 (_("Critical threshold must be a positive integer"));
                        }
                        break;
                case 'W':                                                                       /* warning-connect */
                        if (!is_intnonneg (optarg))
-                               usage ("Warning threshold must be a nonnegative integer\n");
-                       warning_time = atoi (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))
-                               usage ("Critical threshold must be a nonnegative integer\n");
-                       critical_time = atoi (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))
-                               usage ("Serevr port must be a nonnegative integer\n");
-                       server_port = atoi (optarg);
+                               usage4 (_("Port must be a positive integer"));
+                       else
+                               server_port = atoi (optarg);
                        break;
                case 't':                                                                       /* timeout */
                        if (!is_intnonneg (optarg))
-                               usage ("Timeout interval must be a nonnegative integer\n");
-                       socket_timeout = atoi (optarg);
+                               usage2 (_("Timeout interval must be a positive integer"), optarg);
+                       else
+                               socket_timeout = atoi (optarg);
                        break;
+               case 'u':                                                                       /* udp */
+                       use_udp = TRUE;
                }
        }
 
@@ -282,11 +312,11 @@ process_arguments (int argc, char **argv)
        if (server_address == NULL) {
                if (argc > c) {
                        if (is_host (argv[c]) == FALSE)
-                               usage ("Invalid host name/address\n");
+                               usage2 (_("Invalid hostname/address"), optarg);
                        server_address = argv[c];
                }
                else {
-                       usage ("Host name was not supplied\n");
+                       usage4 (_("Hostname was not supplied"));
                }
        }
 
@@ -295,52 +325,50 @@ process_arguments (int argc, char **argv)
 
 
 
-
-
 void
-print_usage (void)
+print_help (void)
 {
-       printf
-               ("Usage:\n"
-                " %s -H <host_address> [-p port] [-w variance] [-c variance]\n"
-                "           [-W connect_time] [-C connect_time] [-t timeout]\n"
-                " %s (-h | --help) for detailed help\n"
-                " %s (-V | --version) for version information\n",
-                PROGNAME, PROGNAME, PROGNAME);
-}
+       char *myport;
+       asprintf (&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_TIMEOUT, DEFAULT_SOCKET_TIMEOUT);
+
+       printf (UT_SUPPORT);
+}
 
 
 
 void
-print_help (void)
+print_usage (void)
 {
-       print_revision (PROGNAME, REVISION);
-       printf
-               ("Copyright (c) %s %s <%s>\n\n%s\n",
-                COPYRIGHT, AUTHOR, EMAIL, SUMMARY);
-       print_usage ();
-       printf
-               ("Options:\n"
-                " -H, --hostname=ADDRESS\n"
-                "    Host name argument for servers using host headers (use numeric\n"
-                "    address if possible to bypass DNS lookup).\n"
-                " -w, --warning-variance=INTEGER\n"
-                "    Time difference (sec.) necessary to result in a warning status\n"
-                " -c, --critical-variance=INTEGER\n"
-                "    Time difference (sec.) necessary to result in a critical status\n"
-                " -W, --warning-connect=INTEGER\n"
-                "    Response time (sec.) necessary to result in warning status\n"
-                " -C, --critical-connect=INTEGER\n"
-                "    Response time (sec.) necessary to result in critical status\n"
-                " -t, --timeout=INTEGER\n"
-                "    Seconds before connection times out (default: %d)\n"
-                " -p, --port=INTEGER\n"
-                "    Port number (default: %d)\n"
-                " -h, --help\n"
-                "    Print detailed help screen\n"
-                " -V, --version\n"
-                "    Print version information\n\n", DEFAULT_SOCKET_TIMEOUT, TIME_PORT);
-       support ();
+  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");
 }