add switch to evaluate each swap individually

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@219 f882894a-f735-0410-b71e-b25c423dba1c

1 files changed, 85 insertions, 30 deletions

diff --git a/plugins/check_swap.c b/plugins/check_swap.c
index da18ccb8..968779dc 100644
--- a/plugins/check_swap.c
+++ b/plugins/check_swap.c
@@ -1,33 +1,58 @@
 /******************************************************************************
-*
-* CHECK_SWAP.C
-*
-* Program: Process plugin for Nagios
-* License: GPL
-* Copyright (c) 2000 Karl DeBisschop (kdebisschop@users.sourceforge.net)
-*
-* $Id$
-*
-******************************************************************************/
+ *
+ * Program: Swap space plugin for Nagios
+ * License: GPL
+ *
+ * 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.
+ *
+ * Copyright (c) 2000 Karl DeBisschop (kdebisschop@users.sourceforge.net)
+ *
+ * $Id$
+ *
+ *****************************************************************************/
 
 #include "common.h"
 #include "popen.h"
 #include "utils.h"
 
 #define PROGNAME "check_swap"
+#define REVISION "$Revision$"
+#define COPYRIGHT "2000-2002"
+#define AUTHOR "Karl DeBisschop"
+#define EMAIL "kdebisschop@users.sourceforge.net"
+#define SUMMARY "Check swap space on local server.\n"
 
 int process_arguments (int argc, char **argv);
 int validate_arguments (void);
 void print_usage (void);
 void print_help (void);
 
-int warn_percent = 200, crit_percent = 200, warn_size = -1, crit_size = -1;
+int warn_percent = 200;
+int crit_percent = 200;
+int warn_size = -1;
+int crit_size = -1;
+int verbose;
+int allswaps;
 
 int
 main (int argc, char **argv)
 {
         int total_swap = 0, used_swap = 0, free_swap = 0, percent_used;
-        int total, used, free;
+        int total, used, free, percent;
         int result = STATE_OK;
         char input_buffer[MAX_INPUT_BUFFER];
 #ifdef HAVE_SWAP
@@ -48,17 +73,25 @@ main (int argc, char **argv)
         while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, fp)) {
                 if (sscanf (input_buffer, " %s %d %d %d", str, &total, &used, &free) == 4 &&
                     strstr (str, "Swap")) {
-/*                      asprintf (&status, "%s [%d/%d]", status, used, total); */
                         total_swap += total;
                         used_swap += used;
                         free_swap += free;
+                        if (allswaps) {
+                                percent = 100 * (((float) used) / ((float) total));
+                                if (percent >= crit_percent || free <= crit_size)
+                                        result = max_state (STATE_CRITICAL, result);
+                                else if (percent >= warn_percent || free <= warn_size)
+                                        result = max_state (STATE_WARNING, result);
+                                if (verbose)
+                                        asprintf (&status, "%s [%d/%d]", status, used, total);
+                        }
                 }
         }
         percent_used = 100 * (((float) used_swap) / ((float) total_swap));
         if (percent_used >= crit_percent || free_swap <= crit_size)
-                result = STATE_CRITICAL;
+                result = max_state (STATE_CRITICAL, result);
         else if (percent_used >= warn_percent || free_swap <= warn_size)
-                result = STATE_WARNING;
+                result = max_state (STATE_WARNING, result);
         asprintf (&status, "%s %2d%% (%d out of %d)", status, percent_used,
                   used_swap, total_swap);
         fclose (fp);
@@ -94,29 +127,37 @@ main (int argc, char **argv)
         while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process)) {
                 sscanf (input_buffer, SWAP_FORMAT, &total, &free);
                 used = total - free;
-/*              asprintf (&status, "%s [%d/%d]", status, used, total); */
                 total_swap += total;
                 used_swap += used;
                 free_swap += free;
+                if (allswaps) {
+                        percent = 100 * (((float) used) / ((float) total));
+                        if (percent >= crit_percent || free <= crit_size)
+                                result = max_state (STATE_CRITICAL, result);
+                        else if (percent >= warn_percent || free <= warn_size)
+                                result = max_state (STATE_WARNING, result);
+                        if (verbose)
+                                asprintf (&status, "%s [%d/%d]", status, used, total);
+                }
         }
         percent_used = 100 * ((float) used_swap) / ((float) total_swap);
         asprintf (&status, "%s %2d%% (%d out of %d)",
                                                 status, percent_used, used_swap, total_swap);
         if (percent_used >= crit_percent || free_swap <= crit_size)
-                result = STATE_CRITICAL;
+                result = max_state (STATE_CRITICAL, result);
         else if (percent_used >= warn_percent || free_swap <= warn_size)
-                result = STATE_WARNING;
+                result = max_state (STATE_WARNING, result);
 
         /* If we get anything on STDERR, at least set warning */
         while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_stderr))
-                result = max (result, STATE_WARNING);
+                result = max_state (result, STATE_WARNING);
 
         /* close stderr */
         (void) fclose (child_stderr);
 
         /* close the pipe */
         if (spclose (child_process))
-                result = max (result, STATE_WARNING);
+                result = max_state (result, STATE_WARNING);
 #endif
 #endif
 
@@ -152,13 +193,16 @@ main (int argc, char **argv)
 int
 process_arguments (int argc, char **argv)
 {
-        int c, i = 0;
+        int c = 0;  /* option character */
+        int wc = 0; /* warning counter  */
+        int cc = 0; /* critical counter */
 
 #ifdef HAVE_GETOPT_H
         int option_index = 0;
         static struct option long_options[] = {
                 {"warning", required_argument, 0, 'w'},
                 {"critical", required_argument, 0, 'c'},
+                {"all", no_argument, 0, 'a'},
                 {"verbose", no_argument, 0, 'v'},
                 {"version", no_argument, 0, 'V'},
                 {"help", no_argument, 0, 'h'},
@@ -171,9 +215,9 @@ process_arguments (int argc, char **argv)
 
         while (1) {
 #ifdef HAVE_GETOPT_H
-                c = getopt_long (argc, argv, "+?Vhc:w:", long_options, &option_index);
+                c = getopt_long (argc, argv, "+?Vvhac:w:", long_options, &option_index);
 #else
-                c = getopt (argc, argv, "+?Vhc:w:");
+                c = getopt (argc, argv, "+?Vvhac:w:");
 #endif
 
                 if (c == -1 || c == EOF)
@@ -197,6 +241,7 @@ process_arguments (int argc, char **argv)
                         else {
                                 usage ("Warning threshold must be integer or percentage!\n");
                         }
+                        wc++;
                 case 'c':                                                                       /* critical time threshold */
                         if (is_intnonneg (optarg)) {
                                 crit_size = atoi (optarg);
@@ -214,6 +259,13 @@ process_arguments (int argc, char **argv)
                         else {
                                 usage ("Critical threshold must be integer or percentage!\n");
                         }
+                        cc++;
+                case 'a':                                                                       /* verbose */
+                        allswaps = TRUE;
+                        break;
+                case 'v':                                                                       /* verbose */
+                        verbose = TRUE;
+                        break;
                 case 'V':                                                                       /* version */
                         print_revision (my_basename (argv[0]), "$Revision$");
                         exit (STATE_OK);
@@ -279,9 +331,12 @@ void
 print_usage (void)
 {
         printf
-                ("Usage: check_swap -w <used_percentage>%% -c <used_percentage>%%\n"
-                 "       check_swap -w <bytes_free> -c <bytes_free>\n"
-                 "       check_swap (-V|--version)\n" "       check_swap (-h|--help)\n");
+                ("Usage:\n"
+                 " %s [-a] -w <used_percentage>%% -c <used_percentage>%%\n"
+                 " %s [-a] -w <bytes_free> -c <bytes_free>\n"
+                 " %s (-h | --help) for detailed help\n"
+                 " %s (-V | --version) for version information\n",
+                 PROGNAME, PROGNAME, PROGNAME, PROGNAME);
 }
 
 
@@ -291,11 +346,9 @@ print_usage (void)
 void
 print_help (void)
 {
-        print_revision (PROGNAME, "$Revision$");
+        print_revision (PROGNAME, REVISION);
         printf
-                ("Copyright (c) 2000 Karl DeBisschop\n\n"
-                 "This plugin will check all of the swap partitions and return an\n"
-                 "error if the the avalable swap space is less than specified.\n\n");
+                ("Copyright (c) %s %s <%s>\n\n%s\n", COPYRIGHT, AUTHOR, EMAIL, SUMMARY);
         print_usage ();
         printf
                 ("\nOptions:\n"
@@ -307,6 +360,8 @@ print_help (void)
                  "   Exit with CRITICAL status if less than INTEGER bytes of swap space are free\n"
                  " -c, --critical=PERCENT%%\n"
                  "   Exit with CRITCAL status if more than PERCENT of swap space has been used\n"
+                 " -a, --allswaps\n"
+                 "    Conduct comparisons for all swap partitions, one by one\n"
                  " -h, --help\n"
                  "    Print detailed help screen\n"
                  " -V, --version\n" "    Print version information\n\n");