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/*****************************************************************************
*
* utils_base.c
*
* Library of useful functions for plugins
* These functions are tested with libtap. See tests/ directory
*
* Copyright (c) 2006 Nagios Plugin Development Team
* License: GPL
*
* $Revision$
* $Date$
****************************************************************************/
#include <stdarg.h>
#include "common.h"
#include "utils_base.h"
void
die (int result, const char *fmt, ...)
{
va_list ap;
va_start (ap, fmt);
vprintf (fmt, ap);
va_end (ap);
exit (result);
}
void set_range_start (range *this, double value) {
this->start = value;
this->start_infinity = FALSE;
}
void set_range_end (range *this, double value) {
this->end = value;
this->end_infinity = FALSE;
}
range
*parse_range_string (char *str) {
range *temp_range;
double start;
double end;
char *end_str;
temp_range = (range *) malloc(sizeof(range));
/* Set defaults */
temp_range->start = 0;
temp_range->start_infinity = FALSE;
temp_range->end = 0;
temp_range->end_infinity = TRUE;
temp_range->alert_on = OUTSIDE;
if (str[0] == '@') {
temp_range->alert_on = INSIDE;
str++;
}
end_str = index(str, ':');
if (end_str != NULL) {
if (str[0] == '~') {
temp_range->start_infinity = TRUE;
} else {
start = strtod(str, NULL); /* Will stop at the ':' */
set_range_start(temp_range, start);
}
end_str++; /* Move past the ':' */
} else {
end_str = str;
}
end = strtod(end_str, NULL);
if (strcmp(end_str, "") != 0) {
set_range_end(temp_range, end);
}
if (temp_range->start_infinity == TRUE ||
temp_range->end_infinity == TRUE ||
temp_range->start <= temp_range->end) {
return temp_range;
}
free(temp_range);
return NULL;
}
/* returns 0 if okay, otherwise 1 */
int
_set_thresholds(thresholds **my_thresholds, char *warn_string, char *critical_string)
{
thresholds *temp_thresholds = NULL;
temp_thresholds = malloc(sizeof(temp_thresholds));
temp_thresholds->warning = NULL;
temp_thresholds->critical = NULL;
if (warn_string != NULL) {
if ((temp_thresholds->warning = parse_range_string(warn_string)) == NULL) {
return NP_RANGE_UNPARSEABLE;
}
}
if (critical_string != NULL) {
if ((temp_thresholds->critical = parse_range_string(critical_string)) == NULL) {
return NP_RANGE_UNPARSEABLE;
}
}
if (*my_thresholds > 0) { /* Not sure why, but sometimes could be -1 */
/* printf("Freeing here: %d\n", *my_thresholds); */
free(*my_thresholds);
}
*my_thresholds = temp_thresholds;
return 0;
}
void
set_thresholds(thresholds **my_thresholds, char *warn_string, char *critical_string)
{
switch (_set_thresholds(my_thresholds, warn_string, critical_string)) {
case 0:
return;
case NP_RANGE_UNPARSEABLE:
die(STATE_UNKNOWN, _("Range format incorrect"));
case NP_WARN_WITHIN_CRIT:
die(STATE_UNKNOWN, _("Warning level is a subset of critical and will not be alerted"));
break;
}
}
void print_thresholds(const char *threshold_name, thresholds *my_threshold) {
printf("%s - ", threshold_name);
if (! my_threshold) {
printf("Threshold not set");
} else {
if (my_threshold->warning) {
printf("Warning: start=%g end=%g; ", my_threshold->warning->start, my_threshold->warning->end);
} else {
printf("Warning not set; ");
}
if (my_threshold->critical) {
printf("Critical: start=%g end=%g", my_threshold->critical->start, my_threshold->critical->end);
} else {
printf("Critical not set");
}
}
printf("\n");
}
/* Returns TRUE if alert should be raised based on the range */
int
check_range(double value, range *my_range)
{
int no = FALSE;
int yes = TRUE;
if (my_range->alert_on == INSIDE) {
no = TRUE;
yes = FALSE;
}
if (my_range->end_infinity == FALSE && my_range->start_infinity == FALSE) {
if ((my_range->start <= value) && (value <= my_range->end)) {
return no;
} else {
return yes;
}
} else if (my_range->start_infinity == FALSE && my_range->end_infinity == TRUE) {
if (my_range->start <= value) {
return no;
} else {
return yes;
}
} else if (my_range->start_infinity == TRUE && my_range->end_infinity == FALSE) {
if (value <= my_range->end) {
return no;
} else {
return yes;
}
} else {
return no;
}
}
/* Returns status */
int
get_status(double value, thresholds *my_thresholds)
{
if (my_thresholds->critical != NULL) {
if (check_range(value, my_thresholds->critical) == TRUE) {
return STATE_CRITICAL;
}
}
if (my_thresholds->warning != NULL) {
if (check_range(value, my_thresholds->warning) == TRUE) {
return STATE_WARNING;
}
}
return STATE_OK;
}
char *np_escaped_string (const char *string) {
char *data;
int i, j=0;
data = strdup(string);
for (i=0; data[i]; i++) {
if (data[i] == '\\') {
switch(data[++i]) {
case 'n':
data[j++] = '\n';
break;
case 'r':
data[j++] = '\r';
break;
case 't':
data[j++] = '\t';
break;
case '\\':
data[j++] = '\\';
break;
default:
data[j++] = data[i];
}
} else {
data[j++] = data[i];
}
}
data[j] = '\0';
return data;
}
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