+#include "config.h"
+
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <sys/un.h>
/*
- * This weird macro cascade forces the glibc to define `NAN'. I don't know
- * another way to solve this, so more intelligent solutions are welcome. -octo
+ * This is copied directly from collectd.h. Make changes there!
*/
-#ifndef __USE_ISOC99
-# define DISABLE__USE_ISOC99 1
-# define __USE_ISOC99 1
-#endif
-#include <math.h>
-#ifdef DISABLE__USE_ISOC99
-# undef DISABLE__USE_ISOC99
-# undef __USE_ISOC99
-#endif
+#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
static char *socket_file_g = NULL;
static char *value_string_g = NULL;
+static char *hostname_g = NULL;
+
static range_t range_critical_g;
static range_t range_warning_g;
static int consolitation_g = CON_NONE;
+static char **match_ds_g = NULL;
+static int match_ds_num_g = 0;
+
+static int ignore_ds (const char *name)
+{
+ int i;
+
+ if (match_ds_g == NULL)
+ return (0);
+
+ for (i = 0; i < match_ds_num_g; i++)
+ if (strcasecmp (match_ds_g[i], name) == 0)
+ return (0);
+
+ return (1);
+} /* int ignore_ds */
+
static void parse_range (char *string, range_t *range)
{
char *min_ptr;
{
int ret = 0;
- if ((range->min != NAN) && (range->min > value))
+ if (!isnan (range->min) && (range->min > value))
ret = 1;
- if ((range->max != NAN) && (range->max < value))
+ if (!isnan (range->max) && (range->max < value))
ret = 1;
return (((ret - range->invert) == 0) ? 0 : 1);
struct sockaddr_un sa;
int status;
int fd;
- FILE *fh;
+ FILE *fh_in, *fh_out;
char buffer[4096];
int values_num;
char **values_names;
int i;
+ int j;
fd = socket (PF_UNIX, SOCK_STREAM, 0);
if (fd < 0)
return (-1);
}
- fh = fdopen (fd, "r+");
- if (fh == NULL)
+ fh_in = fdopen (fd, "r");
+ if (fh_in == NULL)
{
fprintf (stderr, "fdopen failed: %s\n",
strerror (errno));
return (-1);
}
- fprintf (fh, "GETVAL %s\n", value_string_g);
- fflush (fh);
+ fh_out = fdopen (fd, "w");
+ if (fh_out == NULL)
+ {
+ fprintf (stderr, "fdopen failed: %s\n",
+ strerror (errno));
+ fclose (fh_in);
+ return (-1);
+ }
+
+ fprintf (fh_out, "GETVAL %s/%s\n", hostname_g, value_string_g);
+ fflush (fh_out);
- if (fgets (buffer, sizeof (buffer), fh) == NULL)
+ if (fgets (buffer, sizeof (buffer), fh_in) == NULL)
{
fprintf (stderr, "fgets failed: %s\n",
strerror (errno));
- close (fd);
+ fclose (fh_in);
+ fclose (fh_out);
return (-1);
}
- close (fd); fd = -1;
- values_num = atoi (buffer);
- if (values_num < 1)
- return (-1);
+ {
+ char *ptr = strchr (buffer, ' ');
+
+ if (ptr != NULL)
+ *ptr = '\0';
+
+ values_num = atoi (buffer);
+ if (values_num < 1)
+ return (-1);
+ }
values = (double *) malloc (values_num * sizeof (double));
if (values == NULL)
free (values);
return (-1);
}
+ memset (values_names, 0, values_num * sizeof (char *));
+ i = 0; /* index of the values returned by the server */
+ j = 0; /* number of values in `values_names' and `values' */
+ while (fgets (buffer, sizeof (buffer), fh_in) != NULL)
{
- char *ptr = strchr (buffer, ' ') + 1;
- char *key;
- char *value;
-
- i = 0;
- while ((key = strtok (ptr, " \t")) != NULL)
+ do /* while (0) */
{
- ptr = NULL;
+ char *key;
+ char *value;
+ char *endptr;
+
+ key = buffer;
+
value = strchr (key, '=');
if (value == NULL)
- continue;
- *value = '\0'; value++;
+ {
+ fprintf (stderr, "Cannot parse line: %s\n", buffer);
+ break;
+ }
+ *value = 0;
+ value++;
- values_names[i] = strdup (key);
- values[i] = atof (value);
+ if (ignore_ds (key) != 0)
+ break;
- i++;
- if (i >= values_num)
+ endptr = NULL;
+ errno = 0;
+ values[j] = strtod (value, &endptr);
+ if ((endptr == value) || (errno != 0))
+ {
+ fprintf (stderr, "Could not parse buffer "
+ "as number: %s\n", value);
break;
- }
- values_num = i;
+ }
+
+ values_names[j] = strdup (key);
+ if (values_names[j] == NULL)
+ {
+ fprintf (stderr, "strdup failed.\n");
+ break;
+ }
+ j++;
+ } while (0);
+
+ i++;
+ if (i >= values_num)
+ break;
}
+ /* Set `values_num' to the number of values actually stored in the
+ * array. */
+ values_num = j;
+
+ fclose (fh_in); fh_in = NULL; fd = -1;
+ fclose (fh_out); fh_out = NULL;
*ret_values_num = values_num;
*ret_values = values;
static void usage (const char *name)
{
- fprintf (stderr, "Usage: %s <-s socket> <-n value_spec> [options]\n"
+ fprintf (stderr, "Usage: %s <-s socket> <-n value_spec> <-H hostname> [options]\n"
"\n"
"Valid options are:\n"
- " -s <socket> Path to collectd's UNIX-socket\n"
- " -n <v_spec> Value specification to get from collectd\n"
- " -c <range> Critical range\n"
- " -w <range> Range for critical values\n",
- name);
+ " -s <socket> Path to collectd's UNIX-socket.\n"
+ " -n <v_spec> Value specification to get from collectd.\n"
+ " Format: `plugin-instance/type-instance'\n"
+ " -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"
+ " -H <host> Hostname to query the values for.\n"
+ " -c <range> Critical range\n"
+ " -w <range> Warning range\n"
+ "\n"
+ "Consolidation functions:\n"
+ " none: Apply the warning- and critical-ranges to each data-source\n"
+ " individually.\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"
+ "\n", name);
exit (1);
} /* void usage */
for (i = 0; i < values_num; i++)
{
- if (values[i] == NAN)
+ if (isnan (values[i]))
num_warning++;
else if (match_range (&range_critical_g, values[i]) != 0)
num_critical++;
num_okay++;
}
- if ((num_critical != 0) || (values_num == 0))
+ printf ("%i critical, %i warning, %i okay",
+ num_critical, num_warning, num_okay);
+ if (values_num > 0)
{
- printf ("CRITICAL: %i critical, %i warning, %i okay\n",
- num_critical, num_warning, num_okay);
- return (RET_CRITICAL);
+ printf (" |");
+ for (i = 0; i < values_num; i++)
+ printf (" %s=%lf;;;;", values_names[i], values[i]);
}
+ printf ("\n");
+
+ if ((num_critical != 0) || (values_num == 0))
+ return (RET_CRITICAL);
else if (num_warning != 0)
- {
- printf ("WARNING: %i warning, %i okay\n",
- num_warning, num_okay);
return (RET_WARNING);
- }
- else
- {
- printf ("OKAY: %i okay\n", num_okay);
- return (RET_OKAY);
- }
- return (RET_UNKNOWN);
+ return (RET_OKAY);
} /* int do_check_con_none */
int do_check_con_average (int values_num, double *values, char **values_names)
int i;
double total;
int total_num;
+ double average;
total = 0.0;
total_num = 0;
for (i = 0; i < values_num; i++)
{
- if (values[i] != NAN)
+ if (!isnan (values[i]))
{
total += values[i];
total_num++;
}
if (total_num == 0)
- {
- printf ("WARNING: No defined values found\n");
+ average = NAN;
+ else
+ average = total / total_num;
+ printf ("%lf average |", average);
+ for (i = 0; i < values_num; i++)
+ printf (" %s=%lf;;;;", values_names[i], values[i]);
+
+ if (total_num == 0)
return (RET_WARNING);
- }
- if (match_range (&range_critical_g, total / total_num) != 0)
- {
- printf ("CRITICAL: Average = %lf\n",
- (double) (total / total_num));
+ if (isnan (average)
+ || match_range (&range_critical_g, average))
return (RET_CRITICAL);
- }
- else if (match_range (&range_warning_g, total / total_num) != 0)
- {
- printf ("WARNING: Average = %lf\n",
- (double) (total / total_num));
+ else if (match_range (&range_warning_g, average) != 0)
return (RET_WARNING);
- }
- else
- {
- printf ("OKAY: Average = %lf\n",
- (double) (total / total_num));
- return (RET_OKAY);
- }
- return (RET_UNKNOWN);
+ return (RET_OKAY);
} /* int do_check_con_average */
int do_check_con_sum (int values_num, double *values, char **values_names)
total_num = 0;
for (i = 0; i < values_num; i++)
{
- if (values[i] != NAN)
+ if (!isnan (values[i]))
{
total += values[i];
total_num++;
double *values;
char **values_names;
int values_num;
- int i;
if (get_values (&values_num, &values, &values_names) != 0)
{
return (RET_CRITICAL);
}
- for (i = 0; i < values_num; i++)
- printf ("%s=%lf\n", values_names[i], values[i]);
-
if (consolitation_g == CON_NONE)
return (do_check_con_none (values_num, values, values_names));
else if (consolitation_g == CON_AVERAGE)
else if (consolitation_g == CON_SUM)
return (do_check_con_sum (values_num, values, values_names));
+ free (values);
+ free (values_names); /* FIXME? */
+
return (RET_UNKNOWN);
}
{
int c;
- c = getopt (argc, argv, "w:c:s:n:g:h");
+ c = getopt (argc, argv, "w:c:s:n:H:g:d:h");
if (c < 0)
break;
case 'n':
value_string_g = optarg;
break;
+ case 'H':
+ hostname_g = optarg;
+ break;
case 'g':
if (strcasecmp (optarg, "none") == 0)
consolitation_g = CON_NONE;
else
usage (argv[0]);
break;
+ case 'd':
+ {
+ char **tmp;
+ tmp = (char **) realloc (match_ds_g,
+ (match_ds_num_g + 1)
+ * sizeof (char *));
+ if (tmp == NULL)
+ {
+ fprintf (stderr, "realloc failed: %s\n",
+ strerror (errno));
+ return (RET_UNKNOWN);
+ }
+ match_ds_g = tmp;
+ match_ds_g[match_ds_num_g] = strdup (optarg);
+ if (match_ds_g[match_ds_num_g] == NULL)
+ {
+ fprintf (stderr, "strdup failed: %s\n",
+ strerror (errno));
+ return (RET_UNKNOWN);
+ }
+ match_ds_num_g++;
+ break;
+ }
default:
usage (argv[0]);
} /* switch (c) */
}
- if ((socket_file_g == NULL) || (value_string_g == NULL))
+ if ((socket_file_g == NULL) || (value_string_g == NULL)
+ || (hostname_g == NULL))
usage (argv[0]);
return (do_check ());
projects / collectd.git / blobdiff