/**
* collectd-nagios - src/collectd-nagios.c
- * Copyright (C) 2008 Florian octo Forster
+ * Copyright (C) 2008-2010 Florian octo Forster
*
* 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
* Florian octo Forster <octo at verplant.org>
**/
-/* Set to C99 and POSIX code */
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
#ifndef _ISOC99_SOURCE
# define _ISOC99_SOURCE
#endif
-#ifndef _POSIX_SOURCE
-# define _POSIX_SOURCE
-#endif
+
#ifndef _POSIX_C_SOURCE
# define _POSIX_C_SOURCE 200112L
#endif
-#ifndef _REENTRANT
-# define _REENTRANT
-#endif
-/* Disable non-standard extensions */
-#ifdef _BSD_SOURCE
-# undef _BSD_SOURCE
-#endif
-#ifdef _SVID_SOURCE
-# undef _SVID_SOURCE
-#endif
-#ifdef _GNU_SOURCE
-# undef _GNU_SOURCE
+#ifndef _XOPEN_SOURCE
+# define _XOPEN_SOURCE 600
#endif
#if !defined(__GNUC__) || !__GNUC__
# define __attribute__(x) /**/
#endif
-#include "config.h"
-
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <assert.h>
-
-#include <sys/socket.h>
-#include <sys/un.h>
+#include <math.h>
#include "libcollectdclient/client.h"
-/*
- * This is copied directly from collectd.h. Make changes there!
- */
-#if NAN_STATIC_DEFAULT
-# include <math.h>
-/* #endif NAN_STATIC_DEFAULT*/
-#elif NAN_STATIC_ISOC
-# ifndef __USE_ISOC99
-# define DISABLE_ISOC99 1
-# define __USE_ISOC99 1
-# endif /* !defined(__USE_ISOC99) */
-# include <math.h>
-# if DISABLE_ISOC99
-# undef DISABLE_ISOC99
-# undef __USE_ISOC99
-# endif /* DISABLE_ISOC99 */
-/* #endif NAN_STATIC_ISOC */
-#elif NAN_ZERO_ZERO
-# include <math.h>
-# ifdef NAN
-# undef NAN
-# endif
-# define NAN (0.0 / 0.0)
-# ifndef isnan
-# define isnan(f) ((f) != (f))
-# endif /* !defined(isnan) */
-#endif /* NAN_ZERO_ZERO */
-
#define RET_OKAY 0
#define RET_WARNING 1
#define RET_CRITICAL 2
static range_t range_critical_g;
static range_t range_warning_g;
static int consolitation_g = CON_NONE;
+static _Bool nan_is_error_g = 0;
static char **match_ds_g = NULL;
static int match_ds_num_g = 0;
return (RET_UNKNOWN);
}
- for (i = 0; i < match_ds_num_g; i++)
+ for (i = 0; i < (size_t) match_ds_num_g; i++)
{
size_t j;
" -d <ds> Select the DS to examine. May be repeated to examine multiple\n"
" DSes. By default all DSes are used.\n"
" -g <consol> Method to use to consolidate several DSes.\n"
- " Valid arguments are `none', `average' and `sum'\n"
+ " See below for a list of valid arguments.\n"
" -H <host> Hostname to query the values for.\n"
" -c <range> Critical range\n"
" -w <range> Warning range\n"
+ " -m Treat \"Not a Number\" (NaN) as critical (default: warning)\n"
"\n"
"Consolidation functions:\n"
" none: Apply the warning- and critical-ranges to each data-source\n"
" average: Calculate the average of all matching DSes and apply the\n"
" warning- and critical-ranges to the calculated average.\n"
" sum: Apply the ranges to the sum of all DSes.\n"
+ " percentage: Apply the ranges to the ratio (in percent) of the first value\n"
+ " and the sum of all values."
"\n", name);
exit (1);
} /* void usage */
int num_okay = 0;
const char *status_str = "UNKNOWN";
int status_code = RET_UNKNOWN;
- int i;
+ size_t i;
for (i = 0; i < values_num; i++)
{
if (isnan (values[i]))
- num_warning++;
+ {
+ if (nan_is_error_g)
+ num_critical++;
+ else
+ num_warning++;
+ }
else if (match_range (&range_critical_g, values[i]) != 0)
num_critical++;
else if (match_range (&range_warning_g, values[i]) != 0)
{
printf (" |");
for (i = 0; i < values_num; i++)
- printf (" %s=%g;;;;", values_names[i], values[i]);
+ printf (" %s=%f;;;;", values_names[i], values[i]);
}
printf ("\n");
static int do_check_con_average (size_t values_num,
double *values, char **values_names)
{
- int i;
+ size_t i;
double total;
int total_num;
double average;
total_num = 0;
for (i = 0; i < values_num; i++)
{
- if (!isnan (values[i]))
+ if (isnan (values[i]))
{
- total += values[i];
- total_num++;
+ if (!nan_is_error_g)
+ continue;
+
+ printf ("CRITICAL: Data source \"%s\" is NaN\n",
+ values_names[i]);
+ return (RET_CRITICAL);
}
+
+ total += values[i];
+ total_num++;
}
if (total_num == 0)
printf ("%s: %g average |", status_str, average);
for (i = 0; i < values_num; i++)
- printf (" %s=%g;;;;", values_names[i], values[i]);
+ printf (" %s=%f;;;;", values_names[i], values[i]);
printf ("\n");
return (status_code);
static int do_check_con_sum (size_t values_num,
double *values, char **values_names)
{
- int i;
+ size_t i;
double total;
int total_num;
const char *status_str = "UNKNOWN";
total_num = 0;
for (i = 0; i < values_num; i++)
{
- if (!isnan (values[i]))
+ if (isnan (values[i]))
{
- total += values[i];
- total_num++;
+ if (!nan_is_error_g)
+ continue;
+
+ printf ("CRITICAL: Data source \"%s\" is NaN\n",
+ values_names[i]);
+ return (RET_CRITICAL);
}
+
+ total += values[i];
+ total_num++;
}
if (total_num == 0)
printf ("%s: %g sum |", status_str, total);
for (i = 0; i < values_num; i++)
- printf (" %s=%g;;;;", values_names[i], values[i]);
+ printf (" %s=%f;;;;", values_names[i], values[i]);
printf ("\n");
return (status_code);
static int do_check_con_percentage (size_t values_num,
double *values, char **values_names)
{
- int i;
+ size_t i;
double sum = 0.0;
double percentage;
}
for (i = 0; i < values_num; i++)
- if (!isnan (values[i]))
- sum += values[i];
+ {
+ if (isnan (values[i]))
+ {
+ if (!nan_is_error_g)
+ continue;
+
+ printf ("CRITICAL: Data source \"%s\" is NaN\n",
+ values_names[i]);
+ return (RET_CRITICAL);
+ }
+
+ sum += values[i];
+ }
if (sum == 0.0)
{
{
int c;
- c = getopt (argc, argv, "w:c:s:n:H:g:d:h");
+ c = getopt (argc, argv, "w:c:s:n:H:g:d:hm");
if (c < 0)
break;
else if (strcasecmp (optarg, "percentage") == 0)
consolitation_g = CON_PERCENTAGE;
else
+ {
+ fprintf (stderr, "Unknown consolidation function `%s'.\n",
+ optarg);
usage (argv[0]);
+ }
break;
case 'd':
{
match_ds_num_g++;
break;
}
+ case 'm':
+ nan_is_error_g = 1;
+ break;
default:
usage (argv[0]);
} /* switch (c) */
if ((socket_file_g == NULL) || (value_string_g == NULL)
|| (hostname_g == NULL))
+ {
+ fprintf (stderr, "Missing required arguments.\n");
usage (argv[0]);
+ }
return (do_check ());
} /* int main */
projects / collectd.git / blobdiff