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add switch to evaluate each swap individually

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git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@219 f882894a-f735-0410-b71e-b25c423dba1c
This commit is contained in:
Karl DeBisschop 2002-11-20 11:56:11 +00:00
parent 6692168ec0
commit 4b2e85d372
1 changed files with 85 additions and 30 deletions
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115
plugins/check_swap.c
View file

@ -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");