1 files changed, 141 insertions, 165 deletions

diff --git a/plugins/check_nagios.c b/plugins/check_nagios.c
index 40d68f0..48629be 100644
--- a/plugins/check_nagios.c
+++ b/plugins/check_nagios.c
@@ -1,58 +1,56 @@
 /*****************************************************************************
-* 
-* Monitoring check_nagios plugin
-* 
-* License: GPL
-* Copyright (c) 1999-2007 Monitoring Plugins Development Team
-* 
-* Description:
-* 
-* This file contains the check_nagios plugin
-* 
-* This plugin checks the status of the Nagios process on the local machine.
-* The plugin will check to make sure the Nagios status log is no older than
-* the number of minutes specified by the expires option.
-* It also checks the process table for a process matching the command
-* argument.
-* 
-* 
-* 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/>.
-* 
-* 
-*****************************************************************************/
+ *
+ * Monitoring check_nagios plugin
+ *
+ * License: GPL
+ * Copyright (c) 1999-2024 Monitoring Plugins Development Team
+ *
+ * Description:
+ *
+ * This file contains the check_nagios plugin
+ *
+ * This plugin checks the status of the Nagios process on the local machine.
+ * The plugin will check to make sure the Nagios status log is no older than
+ * the number of minutes specified by the expires option.
+ * It also checks the process table for a process matching the command
+ * argument.
+ *
+ *
+ * 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_nagios";
-const char *copyright = "1999-2007";
+const char *copyright = "1999-2024";
 const char *email = "devel@monitoring-plugins.org";
 
 #include "common.h"
 #include "runcmd.h"
 #include "utils.h"
 
-int process_arguments (int, char **);
-void print_help (void);
-void print_usage (void);
+static int process_arguments(int /*argc*/, char ** /*argv*/);
+static void print_help(void);
+void print_usage(void);
 
-char *status_log = NULL;
-char *process_string = NULL;
-int expire_minutes = 0;
+static char *status_log = NULL;
+static char *process_string = NULL;
+static int expire_minutes = 0;
 
-int verbose = 0;
+static int verbose = 0;
 
-int
-main (int argc, char **argv)
-{
+int main(int argc, char **argv) {
         int result = STATE_UNKNOWN;
         char input_buffer[MAX_INPUT_BUFFER];
         unsigned long latest_entry_time = 0L;
@@ -73,253 +71,231 @@ main (int argc, char **argv)
 #endif /* PS_USES_PROCETIME */
         char procprog[MAX_INPUT_BUFFER];
         char *procargs;
-        int pos, cols;
+        int pos;
+        int cols;
         int expected_cols = PS_COLS - 1;
         const char *zombie = "Z";
         char *temp_string;
-        output chld_out, chld_err;
+        output chld_out;
+        output chld_err;
         size_t i;
 
-        setlocale (LC_ALL, "");
-        bindtextdomain (PACKAGE, LOCALEDIR);
-        textdomain (PACKAGE);
+        setlocale(LC_ALL, "");
+        bindtextdomain(PACKAGE, LOCALEDIR);
+        textdomain(PACKAGE);
 
         /* Parse extra opts if any */
-        argv=np_extra_opts (&argc, argv, progname);
+        argv = np_extra_opts(&argc, argv, progname);
 
-        if (process_arguments (argc, argv) == ERROR)
+        if (process_arguments(argc, argv) == ERROR)
                 usage_va(_("Could not parse arguments"));
 
         /* Set signal handling and alarm timeout */
-        if (signal (SIGALRM, timeout_alarm_handler) == SIG_ERR) {
+        if (signal(SIGALRM, timeout_alarm_handler) == SIG_ERR) {
                 usage_va(_("Cannot catch SIGALRM"));
         }
 
         /* handle timeouts gracefully... */
-        alarm (timeout_interval);
+        alarm(timeout_interval);
 
         /* open the status log */
-        fp = fopen (status_log, "r");
+        fp = fopen(status_log, "r");
         if (fp == NULL) {
-                die (STATE_CRITICAL, "NAGIOS %s: %s\n", _("CRITICAL"), _("Cannot open status log for reading!"));
+                die(STATE_CRITICAL, "NAGIOS %s: %s\n", _("CRITICAL"), _("Cannot open status log for reading!"));
         }
 
         /* get the date/time of the last item updated in the log */
-        while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, fp)) {
-                if ((temp_ptr = strstr (input_buffer, "created=")) != NULL) {
-                        temp_entry_time = strtoul (temp_ptr + 8, NULL, 10);
+        while (fgets(input_buffer, MAX_INPUT_BUFFER - 1, fp)) {
+                if ((temp_ptr = strstr(input_buffer, "created=")) != NULL) {
+                        temp_entry_time = strtoul(temp_ptr + 8, NULL, 10);
                         latest_entry_time = temp_entry_time;
                         break;
-                } else if ((temp_ptr = strtok (input_buffer, "]")) != NULL) {
-                        temp_entry_time = strtoul (temp_ptr + 1, NULL, 10);
+                }
+                if ((temp_ptr = strtok(input_buffer, "]")) != NULL) {
+                        temp_entry_time = strtoul(temp_ptr + 1, NULL, 10);
                         if (temp_entry_time > latest_entry_time)
                                 latest_entry_time = temp_entry_time;
                 }
         }
-        fclose (fp);
+        fclose(fp);
 
         if (verbose >= 2)
                 printf("command: %s\n", PS_COMMAND);
 
         /* run the command to check for the Nagios process.. */
-        if((result = np_runcmd(PS_COMMAND, &chld_out, &chld_err, 0)) != 0)
+        if ((result = np_runcmd(PS_COMMAND, &chld_out, &chld_err, 0)) != 0)
                 result = STATE_WARNING;
 
         /* count the number of matching Nagios processes... */
-        for(i = 0; i < chld_out.lines; i++) {
-                cols = sscanf (chld_out.line[i], PS_FORMAT, PS_VARLIST);
+        for (i = 0; i < chld_out.lines; i++) {
+                cols = sscanf(chld_out.line[i], PS_FORMAT, PS_VARLIST);
                 /* Zombie processes do not give a procprog command */
-                if ( cols == (expected_cols - 1) && strstr(procstat, zombie) ) {
+                if (cols == (expected_cols - 1) && strstr(procstat, zombie)) {
                         cols = expected_cols;
                         /* Set some value for procargs for the strip command further below
                          * Seen to be a problem on some Solaris 7 and 8 systems */
                         chld_out.line[i][pos] = '\n';
-                        chld_out.line[i][pos+1] = 0x0;
+                        chld_out.line[i][pos + 1] = 0x0;
                 }
-                if ( cols >= expected_cols ) {
-                        xasprintf (&procargs, "%s", chld_out.line[i] + pos);
-                        strip (procargs);
+                if (cols >= expected_cols) {
+                        xasprintf(&procargs, "%s", chld_out.line[i] + pos);
+                        strip(procargs);
 
                         /* Some ps return full pathname for command. This removes path */
-                        temp_string = strtok ((char *)procprog, "/");
+                        temp_string = strtok((char *)procprog, "/");
                         while (temp_string) {
                                 strcpy(procprog, temp_string);
-                                temp_string = strtok (NULL, "/");
+                                temp_string = strtok(NULL, "/");
                         }
 
                         /* May get empty procargs */
-                        if (!strstr(procargs, argv[0]) && strstr(procargs, process_string) && strcmp(procargs,"")) {
+                        if (!strstr(procargs, argv[0]) && strstr(procargs, process_string) && strcmp(procargs, "")) {
                                 proc_entries++;
                                 if (verbose >= 2) {
-                                        printf (_("Found process: %s %s\n"), procprog, procargs);
+                                        printf(_("Found process: %s %s\n"), procprog, procargs);
                                 }
                         }
                 }
         }
 
         /* If we get anything on stderr, at least set warning */
-        if(chld_err.buflen)
-                result = max_state (result, STATE_WARNING);
+        if (chld_err.buflen)
+                result = max_state(result, STATE_WARNING);
 
         /* reset the alarm handler */
-        alarm (0);
+        alarm(0);
 
         if (proc_entries == 0) {
-                die (STATE_CRITICAL, "NAGIOS %s: %s\n", _("CRITICAL"), _("Could not locate a running Nagios process!"));
+                die(STATE_CRITICAL, "NAGIOS %s: %s\n", _("CRITICAL"), _("Could not locate a running Nagios process!"));
         }
 
         if (latest_entry_time == 0L) {
-                die (STATE_CRITICAL, "NAGIOS %s: %s\n", _("CRITICAL"), _("Cannot parse Nagios log file for valid time"));
+                die(STATE_CRITICAL, "NAGIOS %s: %s\n", _("CRITICAL"), _("Cannot parse Nagios log file for valid time"));
         }
 
-        time (&current_time);
+        time(&current_time);
         if ((int)(current_time - latest_entry_time) > (expire_minutes * 60)) {
                 result = STATE_WARNING;
         } else {
                 result = STATE_OK;
         }
 
-        printf ("NAGIOS %s: ", (result == STATE_OK) ? _("OK") : _("WARNING"));
-        printf (ngettext ("%d process", "%d processes", proc_entries), proc_entries);
-        printf (", ");
-        printf (
-          ngettext ("status log updated %d second ago",
-            "status log updated %d seconds ago",
-            (int) (current_time - latest_entry_time) ),
-            (int) (current_time - latest_entry_time) );
-        printf ("\n");
+        printf("NAGIOS %s: ", (result == STATE_OK) ? _("OK") : _("WARNING"));
+        printf(ngettext("%d process", "%d processes", proc_entries), proc_entries);
+        printf(", ");
+        printf(ngettext("status log updated %d second ago", "status log updated %d seconds ago", (int)(current_time - latest_entry_time)),
+                   (int)(current_time - latest_entry_time));
+        printf("\n");
 
         return result;
 }
 
-
-
 /* process command-line arguments */
-int
-process_arguments (int argc, char **argv)
-{
+int process_arguments(int argc, char **argv) {
         int c;
 
         int option = 0;
-        static struct option longopts[] = {
-                {"filename", required_argument, 0, 'F'},
-                {"expires", required_argument, 0, 'e'},
-                {"command", required_argument, 0, 'C'},
-                {"timeout", optional_argument, 0, 't'},
-                {"version", no_argument, 0, 'V'},
-                {"help", no_argument, 0, 'h'},
-                {"verbose", no_argument, 0, 'v'},
-                {0, 0, 0, 0}
-        };
+        static struct option longopts[] = {{"filename", required_argument, 0, 'F'}, {"expires", required_argument, 0, 'e'},
+                                                                           {"command", required_argument, 0, 'C'},  {"timeout", optional_argument, 0, 't'},
+                                                                           {"version", no_argument, 0, 'V'},        {"help", no_argument, 0, 'h'},
+                                                                           {"verbose", no_argument, 0, 'v'},        {0, 0, 0, 0}};
 
         if (argc < 2)
                 return ERROR;
 
-        if (!is_option (argv[1])) {
+        if (!is_option(argv[1])) {
                 status_log = argv[1];
-                if (is_intnonneg (argv[2]))
-                        expire_minutes = atoi (argv[2]);
+                if (is_intnonneg(argv[2]))
+                        expire_minutes = atoi(argv[2]);
                 else
-                        die (STATE_UNKNOWN,
-                                                                 _("Expiration time must be an integer (seconds)\n"));
+                        die(STATE_UNKNOWN, _("Expiration time must be an integer (seconds)\n"));
                 process_string = argv[3];
                 return OK;
         }
 
         while (1) {
-                c = getopt_long (argc, argv, "+hVvF:C:e:t:", longopts, &option);
+                c = getopt_long(argc, argv, "+hVvF:C:e:t:", longopts, &option);
 
                 if (c == -1 || c == EOF || c == 1)
                         break;
 
                 switch (c) {
-                case 'h':                                                                       /* help */
-                        print_help ();
-                        exit (STATE_UNKNOWN);
-                case 'V':                                                                       /* version */
-                        print_revision (progname, NP_VERSION);
-                        exit (STATE_UNKNOWN);
-                case 'F':                                                                       /* status log */
+                case 'h': /* help */
+                        print_help();
+                        exit(STATE_UNKNOWN);
+                case 'V': /* version */
+                        print_revision(progname, NP_VERSION);
+                        exit(STATE_UNKNOWN);
+                case 'F': /* status log */
                         status_log = optarg;
                         break;
-                case 'C':                                                                       /* command */
+                case 'C': /* command */
                         process_string = optarg;
                         break;
-                case 'e':                                                                       /* expiry time */
-                        if (is_intnonneg (optarg))
-                                expire_minutes = atoi (optarg);
+                case 'e': /* expiry time */
+                        if (is_intnonneg(optarg))
+                                expire_minutes = atoi(optarg);
                         else
-                                die (STATE_UNKNOWN,
-                                     _("Expiration time must be an integer (seconds)\n"));
+                                die(STATE_UNKNOWN, _("Expiration time must be an integer (seconds)\n"));
                         break;
-                case 't':                                                                       /* timeout */
-                        if (is_intnonneg (optarg))
-                                timeout_interval = atoi (optarg);
+                case 't': /* timeout */
+                        if (is_intnonneg(optarg))
+                                timeout_interval = atoi(optarg);
                         else
-                                die (STATE_UNKNOWN,
-                                     _("Timeout must be an integer (seconds)\n"));
+                                die(STATE_UNKNOWN, _("Timeout must be an integer (seconds)\n"));
                         break;
                 case 'v':
                         verbose++;
                         break;
-                default:                                                                        /* print short usage_va statement if args not parsable */
+                default: /* print short usage_va statement if args not parsable */
                         usage5();
                 }
         }
 
-
         if (status_log == NULL)
-                die (STATE_UNKNOWN, _("You must provide the status_log\n"));
+                die(STATE_UNKNOWN, _("You must provide the status_log\n"));
 
         if (process_string == NULL)
-                die (STATE_UNKNOWN, _("You must provide a process string\n"));
+                die(STATE_UNKNOWN, _("You must provide a process string\n"));
 
         return OK;
 }
 
+void print_help(void) {
+        print_revision(progname, NP_VERSION);
 
+        printf(_(COPYRIGHT), copyright, email);
 
-void
-print_help (void)
-{
-        print_revision (progname, NP_VERSION);
+        printf("%s\n", _("This plugin checks the status of the Nagios process on the local machine"));
+        printf("%s\n", _("The plugin will check to make sure the Nagios status log is no older than"));
+        printf("%s\n", _("the number of minutes specified by the expires option."));
+        printf("%s\n", _("It also checks the process table for a process matching the command argument."));
 
-        printf (_(COPYRIGHT), copyright, email);
+        printf("\n\n");
 
-        printf ("%s\n", _("This plugin checks the status of the Nagios process on the local machine"));
-  printf ("%s\n", _("The plugin will check to make sure the Nagios status log is no older than"));
-  printf ("%s\n", _("the number of minutes specified by the expires option."));
-  printf ("%s\n", _("It also checks the process table for a process matching the command argument."));
+        print_usage();
 
-  printf ("\n\n");
+        printf(UT_HELP_VRSN);
+        printf(UT_EXTRA_OPTS);
 
-        print_usage ();
+        printf(" %s\n", "-F, --filename=FILE");
+        printf("    %s\n", _("Name of the log file to check"));
+        printf(" %s\n", "-e, --expires=INTEGER");
+        printf("    %s\n", _("Minutes aging after which logfile is considered stale"));
+        printf(" %s\n", "-C, --command=STRING");
+        printf("    %s\n", _("Substring to search for in process arguments"));
+        printf(" %s\n", "-t, --timeout=INTEGER");
+        printf("    %s\n", _("Timeout for the plugin in seconds"));
+        printf(UT_VERBOSE);
 
-        printf (UT_HELP_VRSN);
-        printf (UT_EXTRA_OPTS);
+        printf("\n");
+        printf("%s\n", _("Examples:"));
+        printf(" %s\n", "check_nagios -t 20 -e 5 -F /usr/local/nagios/var/status.log -C /usr/local/nagios/bin/nagios");
 
-        printf (" %s\n", "-F, --filename=FILE");
-  printf ("    %s\n", _("Name of the log file to check"));
-  printf (" %s\n", "-e, --expires=INTEGER");
-  printf ("    %s\n", _("Minutes aging after which logfile is considered stale"));
-  printf (" %s\n", "-C, --command=STRING");
-  printf ("    %s\n", _("Substring to search for in process arguments"));
-  printf (" %s\n", "-t, --timeout=INTEGER");
-  printf ("    %s\n", _("Timeout for the plugin in seconds"));
-  printf (UT_VERBOSE);
-
-  printf ("\n");
-  printf ("%s\n", _("Examples:"));
-  printf (" %s\n", "check_nagios -t 20 -e 5 -F /usr/local/nagios/var/status.log -C /usr/local/nagios/bin/nagios");
-
-  printf (UT_SUPPORT);
+        printf(UT_SUPPORT);
 }
 
-
-
-void
-print_usage (void)
-{
-  printf ("%s\n", _("Usage:"));
-        printf ("%s -F <status log file> -t <timeout_seconds> -e <expire_minutes> -C <process_string>\n", progname);
+void print_usage(void) {
+        printf("%s\n", _("Usage:"));
+        printf("%s -F <status log file> -t <timeout_seconds> -e <expire_minutes> -C <process_string>\n", progname);
 }