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-rw-r--r--plugins/check_overcr.c469
1 files changed, 469 insertions, 0 deletions
diff --git a/plugins/check_overcr.c b/plugins/check_overcr.c
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+++ b/plugins/check_overcr.c
@@ -0,0 +1,469 @@
+/*****************************************************************************
+*
+* Monitoring check_overcr plugin
+*
+* License: GPL
+* Copyright (c) 2000-2007 Monitoring Plugins Development Team
+*
+* Description:
+*
+* This file contains the check_overcr plugin
+*
+* This plugin attempts to contact the Over-CR collector daemon running on the
+* remote UNIX server in order to gather the requested system information.
+*
+*
+* 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_overcr";
+const char *copyright = "2000-2007";
+const char *email = "devel@monitoring-plugins.org";
+
+#include "common.h"
+#include "netutils.h"
+#include "utils.h"
+
+enum checkvar {
+ NONE,
+ LOAD1,
+ LOAD5,
+ LOAD15,
+ DPU,
+ PROCS,
+ NETSTAT,
+ UPTIME
+};
+
+enum {
+ PORT = 2000
+};
+
+char *server_address = NULL;
+int server_port = PORT;
+double warning_value = 0L;
+double critical_value = 0L;
+int check_warning_value = FALSE;
+int check_critical_value = FALSE;
+enum checkvar vars_to_check = NONE;
+int cmd_timeout = 1;
+
+int netstat_port = 0;
+char *disk_name = NULL;
+char *process_name = NULL;
+ char send_buffer[MAX_INPUT_BUFFER];
+
+int process_arguments (int, char **);
+void print_usage (void);
+void print_help (void);
+
+int
+main (int argc, char **argv)
+{
+ int result = STATE_UNKNOWN;
+ char recv_buffer[MAX_INPUT_BUFFER];
+ char temp_buffer[MAX_INPUT_BUFFER];
+ char *temp_ptr = NULL;
+ int found_disk = FALSE;
+ unsigned long percent_used_disk_space = 100;
+ double load;
+ double load_1min;
+ double load_5min;
+ double load_15min;
+ int port_connections = 0;
+ int processes = 0;
+ double uptime_raw_hours;
+ int uptime_raw_minutes = 0;
+ int uptime_days = 0;
+ int uptime_hours = 0;
+ int uptime_minutes = 0;
+
+ 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);
+
+ result = process_tcp_request2 (server_address,
+ server_port,
+ send_buffer,
+ recv_buffer,
+ sizeof (recv_buffer));
+
+ switch (vars_to_check) {
+
+ case LOAD1:
+ case LOAD5:
+ case LOAD15:
+
+ if (result != STATE_OK)
+ die (result, _("Unknown error fetching load data\n"));
+
+ temp_ptr = (char *) strtok (recv_buffer, "\r\n");
+ if (temp_ptr == NULL)
+ die (STATE_CRITICAL, _("Invalid response from server - no load information\n"));
+ else
+ load_1min = strtod (temp_ptr, NULL);
+
+ temp_ptr = (char *) strtok (NULL, "\r\n");
+ if (temp_ptr == NULL)
+ die (STATE_CRITICAL, _("Invalid response from server after load 1\n"));
+ else
+ load_5min = strtod (temp_ptr, NULL);
+
+ temp_ptr = (char *) strtok (NULL, "\r\n");
+ if (temp_ptr == NULL)
+ die (STATE_CRITICAL, _("Invalid response from server after load 5\n"));
+ else
+ load_15min = strtod (temp_ptr, NULL);
+
+ switch (vars_to_check) {
+ case LOAD1:
+ strcpy (temp_buffer, "1");
+ load = load_1min;
+ break;
+ case LOAD5:
+ strcpy (temp_buffer, "5");
+ load = load_5min;
+ break;
+ default:
+ strcpy (temp_buffer, "15");
+ load = load_15min;
+ break;
+ }
+
+ if (check_critical_value == TRUE && (load >= critical_value))
+ result = STATE_CRITICAL;
+ else if (check_warning_value == TRUE && (load >= warning_value))
+ result = STATE_WARNING;
+
+ die (result,
+ _("Load %s - %s-min load average = %0.2f"),
+ state_text(result),
+ temp_buffer,
+ load);
+
+ break;
+
+ case DPU:
+
+ if (result != STATE_OK)
+ die (result, _("Unknown error fetching disk data\n"));
+
+ for (temp_ptr = (char *) strtok (recv_buffer, " ");
+ temp_ptr != NULL;
+ temp_ptr = (char *) strtok (NULL, " ")) {
+
+ if (!strcmp (temp_ptr, disk_name)) {
+ found_disk = TRUE;
+ temp_ptr = (char *) strtok (NULL, "%");
+ if (temp_ptr == NULL)
+ die (STATE_CRITICAL, _("Invalid response from server\n"));
+ else
+ percent_used_disk_space = strtoul (temp_ptr, NULL, 10);
+ break;
+ }
+
+ temp_ptr = (char *) strtok (NULL, "\r\n");
+ }
+
+ /* error if we couldn't find the info for the disk */
+ if (found_disk == FALSE)
+ die (STATE_CRITICAL,
+ "CRITICAL - Disk '%s' non-existent or not mounted",
+ disk_name);
+
+ if (check_critical_value == TRUE && (percent_used_disk_space >= critical_value))
+ result = STATE_CRITICAL;
+ else if (check_warning_value == TRUE && (percent_used_disk_space >= warning_value))
+ result = STATE_WARNING;
+
+ die (result, "Disk %s - %lu%% used on %s", state_text(result), percent_used_disk_space, disk_name);
+
+ break;
+
+ case NETSTAT:
+
+ if (result != STATE_OK)
+ die (result, _("Unknown error fetching network status\n"));
+ else
+ port_connections = strtod (recv_buffer, NULL);
+
+ if (check_critical_value == TRUE && (port_connections >= critical_value))
+ result = STATE_CRITICAL;
+ else if (check_warning_value == TRUE && (port_connections >= warning_value))
+ result = STATE_WARNING;
+
+ die (result,
+ _("Net %s - %d connection%s on port %d"),
+ state_text(result),
+ port_connections,
+ (port_connections == 1) ? "" : "s",
+ netstat_port);
+
+ break;
+
+ case PROCS:
+
+ if (result != STATE_OK)
+ die (result, _("Unknown error fetching process status\n"));
+
+ temp_ptr = (char *) strtok (recv_buffer, "(");
+ if (temp_ptr == NULL)
+ die (STATE_CRITICAL, _("Invalid response from server\n"));
+
+ temp_ptr = (char *) strtok (NULL, ")");
+ if (temp_ptr == NULL)
+ die (STATE_CRITICAL, _("Invalid response from server\n"));
+ else
+ processes = strtod (temp_ptr, NULL);
+
+ if (check_critical_value == TRUE && (processes >= critical_value))
+ result = STATE_CRITICAL;
+ else if (check_warning_value == TRUE && (processes >= warning_value))
+ result = STATE_WARNING;
+
+ die (result,
+ _("Process %s - %d instance%s of %s running"),
+ state_text(result),
+ processes,
+ (processes == 1) ? "" : "s",
+ process_name);
+ break;
+
+ case UPTIME:
+
+ if (result != STATE_OK)
+ return result;
+
+ uptime_raw_hours = strtod (recv_buffer, NULL);
+ uptime_raw_minutes = (unsigned long) (uptime_raw_hours * 60.0);
+
+ if (check_critical_value == TRUE && (uptime_raw_minutes <= critical_value))
+ result = STATE_CRITICAL;
+ else if (check_warning_value == TRUE && (uptime_raw_minutes <= warning_value))
+ result = STATE_WARNING;
+
+ uptime_days = uptime_raw_minutes / 1440;
+ uptime_raw_minutes %= 1440;
+ uptime_hours = uptime_raw_minutes / 60;
+ uptime_raw_minutes %= 60;
+ uptime_minutes = uptime_raw_minutes;
+
+ die (result,
+ _("Uptime %s - Up %d days %d hours %d minutes"),
+ state_text(result),
+ uptime_days,
+ uptime_hours,
+ uptime_minutes);
+ break;
+
+ default:
+ die (STATE_UNKNOWN, _("Nothing to check!\n"));
+ break;
+ }
+}
+
+
+/* process command-line arguments */
+int
+process_arguments (int argc, char **argv)
+{
+ int c;
+
+ int option = 0;
+ static struct option longopts[] = {
+ {"port", required_argument, 0, 'p'},
+ {"timeout", required_argument, 0, 't'},
+ {"critical", required_argument, 0, 'c'},
+ {"warning", required_argument, 0, 'w'},
+ {"variable", required_argument, 0, 'v'},
+ {"hostname", required_argument, 0, 'H'},
+ {"version", no_argument, 0, 'V'},
+ {"help", no_argument, 0, 'h'},
+ {0, 0, 0, 0}
+ };
+
+ /* no options were supplied */
+ if (argc < 2)
+ return ERROR;
+
+ /* backwards compatibility */
+ if (!is_option (argv[1])) {
+ server_address = argv[1];
+ argv[1] = argv[0];
+ argv = &argv[1];
+ argc--;
+ }
+
+ for (c = 1; c < argc; c++) {
+ if (strcmp ("-to", argv[c]) == 0)
+ strcpy (argv[c], "-t");
+ else if (strcmp ("-wv", argv[c]) == 0)
+ strcpy (argv[c], "-w");
+ else if (strcmp ("-cv", argv[c]) == 0)
+ strcpy (argv[c], "-c");
+ }
+
+ while (1) {
+ c = getopt_long (argc, argv, "+hVH:t:c:w:p:v:", longopts,
+ &option);
+
+ if (c == -1 || c == EOF || c == 1)
+ 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 */
+ server_address = optarg;
+ break;
+ case 'p': /* port */
+ if (is_intnonneg (optarg))
+ server_port = atoi (optarg);
+ else
+ die (STATE_UNKNOWN,
+ _("Server port an integer\n"));
+ break;
+ case 'v': /* variable */
+ if (strcmp (optarg, "LOAD") == 0) {
+ strcpy (send_buffer, "LOAD\r\nQUIT\r\n");
+ if (strcmp (optarg, "LOAD1") == 0)
+ vars_to_check = LOAD1;
+ else if (strcmp (optarg, "LOAD5") == 0)
+ vars_to_check = LOAD5;
+ else if (strcmp (optarg, "LOAD15") == 0)
+ vars_to_check = LOAD15;
+ }
+ else if (strcmp (optarg, "UPTIME") == 0) {
+ vars_to_check = UPTIME;
+ strcpy (send_buffer, "UPTIME\r\n");
+ }
+ else if (strstr (optarg, "PROC") == optarg) {
+ vars_to_check = PROCS;
+ process_name = strscpy (process_name, optarg + 4);
+ sprintf (send_buffer, "PROCESS %s\r\n", process_name);
+ }
+ else if (strstr (optarg, "NET") == optarg) {
+ vars_to_check = NETSTAT;
+ netstat_port = atoi (optarg + 3);
+ sprintf (send_buffer, "NETSTAT %d\r\n", netstat_port);
+ }
+ else if (strstr (optarg, "DPU") == optarg) {
+ vars_to_check = DPU;
+ strcpy (send_buffer, "DISKSPACE\r\n");
+ disk_name = strscpy (disk_name, optarg + 3);
+ }
+ else
+ return ERROR;
+ break;
+ case 'w': /* warning threshold */
+ warning_value = strtoul (optarg, NULL, 10);
+ check_warning_value = TRUE;
+ break;
+ case 'c': /* critical threshold */
+ critical_value = strtoul (optarg, NULL, 10);
+ check_critical_value = TRUE;
+ break;
+ case 't': /* timeout */
+ socket_timeout = atoi (optarg);
+ if (socket_timeout <= 0)
+ return ERROR;
+ }
+
+ }
+ return OK;
+}
+
+
+void
+print_help (void)
+{
+ char *myport;
+ xasprintf (&myport, "%d", PORT);
+
+ print_revision (progname, NP_VERSION);
+
+ printf ("Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>\n");
+ printf (COPYRIGHT, copyright, email);
+
+ printf ("%s\n", _("This plugin attempts to contact the Over-CR collector daemon running on the"));
+ printf ("%s\n", _("remote UNIX server in order to gather the requested system information."));
+
+ printf ("\n\n");
+
+ print_usage ();
+
+ printf (UT_HELP_VRSN);
+ printf (UT_EXTRA_OPTS);
+
+ printf (UT_HOST_PORT, 'p', myport);
+
+ printf (" %s\n", "-w, --warning=INTEGER");
+ printf (" %s\n", _("Threshold which will result in a warning status"));
+ printf (" %s\n", "-c, --critical=INTEGER");
+ printf (" %s\n", _("Threshold which will result in a critical status"));
+ printf (" %s\n", "-v, --variable=STRING");
+ printf (" %s\n", _("Variable to check. Valid variables include:"));
+ printf (" %s\n", _("LOAD1 = 1 minute average CPU load"));
+ printf (" %s\n", _("LOAD5 = 5 minute average CPU load"));
+ printf (" %s\n", _("LOAD15 = 15 minute average CPU load"));
+ printf (" %s\n", _("DPU<filesys> = percent used disk space on filesystem <filesys>"));
+ printf (" %s\n", _("PROC<process> = number of running processes with name <process>"));
+ printf (" %s\n", _("NET<port> = number of active connections on TCP port <port>"));
+ printf (" %s\n", _("UPTIME = system uptime in seconds"));
+
+ printf (UT_CONN_TIMEOUT, DEFAULT_SOCKET_TIMEOUT);
+
+ printf (UT_VERBOSE);
+
+ printf ("\n");
+ printf ("%s\n", _("This plugin requires that Eric Molitors' Over-CR collector daemon be"));
+ printf ("%s\n", _("running on the remote server."));
+ printf ("%s\n", _("Over-CR can be downloaded from http://www.molitor.org/overcr"));
+ printf ("%s\n", _("This plugin was tested with version 0.99.53 of the Over-CR collector"));
+
+ printf ("\n");
+ printf ("%s\n", _("Notes:"));
+ printf (" %s\n", _("For the available options, the critical threshold value should always be"));
+ printf (" %s\n", _("higher than the warning threshold value, EXCEPT with the uptime variable"));
+
+ printf (UT_SUPPORT);
+}
+
+
+void
+print_usage (void)
+{
+ printf ("%s\n", _("Usage:"));
+ printf ("%s -H host [-p port] [-v variable] [-w warning] [-c critical] [-t timeout]\n", progname);
+}