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Date: 07 Feburary 2008
Author: Jethro Carr <jethro.carr@jethrocarr.com> working for Prophecy Networks NZ.
Details: Fixed check_dig plugin to make the dig command in the backend run for the specified time period.
--- nagios-plugins-1.4.1/plugins/check_dig.c 2005-01-27 10:21:01.000000000 +1300
--- nagios-plugins-1.4.11.orig/plugins/check_dig.c 2007-01-29 10:46:41.000000000 +1300
+++ nagios-plugins-1.4.11/plugins/check_dig.c 2008-02-07 10:59:46.000000000 +1300
@@ -54,6 +54,8 @@
#define UNDEFINED 0
#define DEFAULT_PORT 53
+#define DEFAULT_TRIES 3
+#define DEFAULT_TIMEOUT 10
char *query_address = NULL;
char *record_type = "A";
@@ -61,6 +63,7 @@
char *dns_server = NULL;
int verbose = FALSE;
int server_port = DEFAULT_PORT;
+int number_tries = DEFAULT_TRIES;
double warning_interval = UNDEFINED;
double critical_interval = UNDEFINED;
struct timeval tv;
@@ -76,6 +79,7 @@
long microsec;
double elapsed_time;
int result = STATE_UNKNOWN;
+ timeout_interval = DEFAULT_TIMEOUT;
setlocale (LC_ALL, "");
bindtextdomain (PACKAGE, LOCALEDIR);
@@ -88,9 +92,13 @@
if (process_arguments (argc, argv) == ERROR)
usage_va(_("Could not parse arguments"));
+ /* dig applies the timeout to each try, so we need to work around this */
+ int timeout_interval_dig = ceil((double) timeout_interval / (double) number_tries);
+
/* get the command to run */
- asprintf (&command_line, "%s @%s -p %d %s -t %s",
- PATH_TO_DIG, dns_server, server_port, query_address, record_type);
+ asprintf (&command_line, "%s @%s -p %d %s -t %s +tries=%d +time=%d",
+ PATH_TO_DIG, dns_server, server_port, query_address, record_type, number_tries, timeout_interval_dig);
+
alarm (timeout_interval);
gettimeofday (&tv, NULL);
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