1 files changed, 489 insertions, 0 deletions

diff --git a/plugins/check_overcr.c b/plugins/check_overcr.c
new file mode 100644
index 00000000..305a8242
--- /dev/null
+++ b/plugins/check_overcr.c
@@ -0,0 +1,489 @@
+/******************************************************************************
+*
+* CHECK_OVERCR.C
+*
+* Program: Over-CR collector plugin for Nagios
+* License: GPL
+* Copyright (c) 1999 Ethan Galstad (nagios@nagios.org)
+*
+* $Id$
+*
+* Description:
+*
+* Notes:
+* - This plugin requires that Eric Molitors' Over-CR collector daemon
+*        be running on any UNIX boxes you want to monitor.  Over-CR
+*        is available from * http://www.molitor.org/overcr/
+*
+* Modifications:
+*
+* 08-11-999 Jacob Lundqvist <jaclu@grm.se>
+* Load was presented as a one digit percentage - changed to two digit
+*       value * before load of 11.2 was presented as "1.2%" (not very
+*       high). Warning and Critical params were int's, not very good
+*       for load, changed to doubles, so we can trap loadlimits like
+*       1.5.  Also added more informative LOAD error messages.
+* 
+* License 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 2 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.
+*
+*****************************************************************************/
+
+#include "config.h"
+#include "common.h"
+#include "netutils.h"
+#include "utils.h"
+
+#define CHECK_NONE      0
+#define CHECK_LOAD1     1
+#define CHECK_LOAD5     2
+#define CHECK_LOAD15    4
+#define CHECK_DPU       8
+#define CHECK_PROCS     16
+#define CHECK_NETSTAT   32
+#define CHECK_UPTIME    64
+
+#define PORT    2000
+
+#define PROGNAME "check_overcr"
+
+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;
+int vars_to_check = CHECK_NONE;
+int cmd_timeout = 1;
+
+int netstat_port = 0;
+char *disk_name = NULL;
+char *process_name = NULL;
+
+int process_arguments (int, char **);
+void print_usage (void);
+void print_help (void);
+
+int
+main (int argc, char **argv)
+{
+        int result;
+        char send_buffer[MAX_INPUT_BUFFER];
+        char recv_buffer[MAX_INPUT_BUFFER];
+        char output_message[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;
+
+        if (process_arguments (argc, argv) == ERROR)
+                usage ("Could not parse arguments\n");
+
+        /* initialize alarm signal handling */
+        signal (SIGALRM, socket_timeout_alarm_handler);
+
+        /* set socket timeout */
+        alarm (socket_timeout);
+
+        result = STATE_OK;
+
+        if (vars_to_check == CHECK_LOAD1 || vars_to_check == CHECK_LOAD5
+                        || vars_to_check == CHECK_LOAD15) {
+
+                strcpy (send_buffer, "LOAD\r\nQUIT\r\n");
+                result =
+                        process_tcp_request2 (server_address, server_port, send_buffer,
+                                                                                                                recv_buffer, sizeof (recv_buffer));
+                if (result != STATE_OK)
+                        return result;
+
+                temp_ptr = (char *) strtok (recv_buffer, "\r\n");
+                if (temp_ptr == NULL) {
+                        printf ("Invalid response from server - no load information\n");
+                        return STATE_CRITICAL;
+                }
+                load_1min = strtod (temp_ptr, NULL);
+                temp_ptr = (char *) strtok (NULL, "\r\n");
+                if (temp_ptr == NULL) {
+                        printf ("Invalid response from server after load 1\n");
+                        return STATE_CRITICAL;
+                }
+                load_5min = strtod (temp_ptr, NULL);
+                temp_ptr = (char *) strtok (NULL, "\r\n");
+                if (temp_ptr == NULL) {
+                        printf ("Invalid response from server after load 5\n");
+                        return STATE_CRITICAL;
+                }
+                load_15min = strtod (temp_ptr, NULL);
+
+
+                switch (vars_to_check) {
+                case CHECK_LOAD1:
+                        strcpy (temp_buffer, "1");
+                        load = load_1min;
+                        break;
+                case CHECK_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;
+                sprintf (output_message, "Load %s - %s-min load average = %0.2f",
+                                                 (result == STATE_OK) ? "ok" : "problem", temp_buffer, load);
+        }
+
+
+        else if (vars_to_check == CHECK_DPU) {
+
+                sprintf (send_buffer, "DISKSPACE\r\n");
+                result =
+                        process_tcp_request2 (server_address, server_port, send_buffer,
+                                                                                                                recv_buffer, sizeof (recv_buffer));
+                if (result != STATE_OK)
+                        return result;
+
+                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) {
+                                        printf ("Invalid response from server\n");
+                                        return STATE_CRITICAL;
+                                }
+                                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) {
+                        sprintf (output_message, "Error: Disk '%s' non-existent or not mounted",
+                                                         disk_name);
+                        result = STATE_CRITICAL;
+                }
+
+                /* else check the disk space used */
+                else {
+
+                        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;
+
+                        sprintf (output_message, "Disk %s - %lu%% used on %s",
+                                                         (result == STATE_OK) ? "ok" : "problem",
+                                                         percent_used_disk_space, disk_name);
+                }
+        }
+
+        else if (vars_to_check == CHECK_NETSTAT) {
+
+                sprintf (send_buffer, "NETSTAT %d\r\n", netstat_port);
+                result =
+                        process_tcp_request2 (server_address, server_port, send_buffer,
+                                                                                                                recv_buffer, sizeof (recv_buffer));
+                if (result != STATE_OK)
+                        return result;
+
+                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;
+
+                sprintf (output_message, "Net %s - %d connection%s on port %d",
+                                                 (result == STATE_OK) ? "ok" : "problem", port_connections,
+                                                 (port_connections == 1) ? "" : "s", netstat_port);
+        }
+
+        else if (vars_to_check == CHECK_PROCS) {
+
+                sprintf (send_buffer, "PROCESS %s\r\n", process_name);
+                result =
+                        process_tcp_request2 (server_address, server_port, send_buffer,
+                                                                                                                recv_buffer, sizeof (recv_buffer));
+                if (result != STATE_OK)
+                        return result;
+
+                temp_ptr = (char *) strtok (recv_buffer, "(");
+                if (temp_ptr == NULL) {
+                        printf ("Invalid response from server\n");
+                        return STATE_CRITICAL;
+                }
+                temp_ptr = (char *) strtok (NULL, ")");
+                if (temp_ptr == NULL) {
+                        printf ("Invalid response from server\n");
+                        return STATE_CRITICAL;
+                }
+                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;
+
+                sprintf (output_message, "Process %s - %d instance%s of %s running",
+                                                 (result == STATE_OK) ? "ok" : "problem", processes,
+                                                 (processes == 1) ? "" : "s", process_name);
+        }
+
+        else if (vars_to_check == CHECK_UPTIME) {
+
+                sprintf (send_buffer, "UPTIME\r\n");
+                result =
+                        process_tcp_request2 (server_address, server_port, send_buffer,
+                                                                                                                recv_buffer, sizeof (recv_buffer));
+                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;
+
+                sprintf (output_message, "Uptime %s - Up %d days %d hours %d minutes",
+                                                 (result == STATE_OK) ? "ok" : "problem", uptime_days,
+                                                 uptime_hours, uptime_minutes);
+        }
+
+        else {
+                strcpy (output_message, "Nothing to check!\n");
+                result = STATE_UNKNOWN;
+        }
+
+        /* reset timeout */
+        alarm (0);
+
+        printf ("%s\n", output_message);
+
+        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[] = {
+                {"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}
+        };
+#endif
+
+        /* 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) {
+#ifdef HAVE_GETOPT_H
+                c =
+                        getopt_long (argc, argv, "+hVH:t:c:w:p:v:", long_options,
+                                                                         &option_index);
+#else
+                c = getopt (argc, argv, "+hVH:t:c:w:p:v:");
+#endif
+
+                if (c == -1 || c == EOF || c == 1)
+                        break;
+
+                switch (c) {
+                case '?':                                                                       /* print short usage statement if args not parsable */
+                        printf ("%s: Unknown argument: %s\n\n", my_basename (argv[0]), optarg);
+                        print_usage ();
+                        exit (STATE_UNKNOWN);
+                case 'h':                                                                       /* help */
+                        print_help ();
+                        exit (STATE_OK);
+                case 'V':                                                                       /* version */
+                        print_revision (my_basename (argv[0]), "$Revision$");
+                        exit (STATE_OK);
+                case 'H':                                                                       /* hostname */
+                        server_address = optarg;
+                        break;
+                case 'p':                                                                       /* port */
+                        if (is_intnonneg (optarg))
+                                server_port = atoi (optarg);
+                        else
+                                terminate (STATE_UNKNOWN,
+                                                                         "Server port an integer (seconds)\nType '%s -h' for additional help\n",
+                                                                         PROGNAME);
+                        break;
+                case 'v':                                                                       /* variable */
+                        if (strcmp (optarg, "LOAD1") == 0)
+                                vars_to_check = CHECK_LOAD1;
+                        else if (strcmp (optarg, "LOAD5") == 0)
+                                vars_to_check = CHECK_LOAD5;
+                        else if (strcmp (optarg, "LOAD15") == 0)
+                                vars_to_check = CHECK_LOAD15;
+                        else if (strcmp (optarg, "UPTIME") == 0)
+                                vars_to_check = CHECK_UPTIME;
+                        else if (strstr (optarg, "PROC") == optarg) {
+                                vars_to_check = CHECK_PROCS;
+                                process_name = strscpy (process_name, optarg + 4);
+                        }
+                        else if (strstr (optarg, "NET") == optarg) {
+                                vars_to_check = CHECK_NETSTAT;
+                                netstat_port = atoi (optarg + 3);
+                        }
+                        else if (strstr (optarg, "DPU") == optarg) {
+                                vars_to_check = CHECK_DPU;
+                                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_usage (void)
+{
+        printf
+                ("Usage: %s -H host [-p port] [-v variable] [-w warning] [-c critical] [-t timeout]\n",
+                 PROGNAME);
+}
+
+
+
+
+
+void
+print_help (void)
+{
+        print_revision (PROGNAME, "$Revision$");
+        printf
+                ("Copyright (c) 2000 Ethan Galstad/Karl DeBisschop\n\n"
+                 "This plugin attempts to contact the Over-CR collector daemon running on the\n"
+                 "remote UNIX server in order to gather the requested system information. This\n"
+                 "plugin requres that Eric Molitors' Over-CR collector daemon be running on the\n"
+                 "remote server. Over-CR can be downloaded from http://www.molitor.org/overcr\n"
+                 "(This plugin was tested with version 0.99.53 of the Over-CR collector)\n\n");
+        print_usage ();
+        printf
+                ("\nOptions:\n"
+                 "-H, --hostname=HOST\n"
+                 "   Name of the host to check\n"
+                 "-p, --port=INTEGER\n"
+                 "   Optional port number (default: %d)\n"
+                 "-v, --variable=STRING\n"
+                 "   Variable to check.  Valid variables include:\n"
+                 "     LOAD1         = 1 minute average CPU load\n"
+                 "     LOAD5         = 5 minute average CPU load\n"
+                 "     LOAD15        = 15 minute average CPU load\n"
+                 "     DPU<filesys>  = percent used disk space on filesystem <filesys>\n"
+                 "     PROC<process> = number of running processes with name <process>\n"
+                 "     NET<port>     = number of active connections on TCP port <port>\n"
+                 "     UPTIME        = system uptime in seconds\n"
+                 " -w, --warning=INTEGER\n"
+                 "   Threshold which will result in a warning status\n"
+                 " -c, --critical=INTEGER\n"
+                 "   Threshold which will result in a critical status\n"
+                 " -t, --timeout=INTEGER\n"
+                 "   Seconds before connection attempt times out (default: %d)\n"
+                 "-h, --help\n"
+                 "   Print this help screen\n"
+                 "-V, --version\n"
+                 "   Print version information\n\n"
+                 "Notes:\n"
+                 " - For the available options, the critical threshold value should always be\n"
+                 "   higher than the warning threshold value, EXCEPT with the uptime variable\n"
+                 "   (i.e. lower uptimes are worse).\n", PORT, DEFAULT_SOCKET_TIMEOUT);
+}