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Output message includes the query_address, as inspired by Johannes Herlitz.

Browse source 
Also cleanup of comments and handles multi-line nslookup output (MacOSX 10.3)


git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@803 f882894a-f735-0410-b71e-b25c423dba1c
This commit is contained in:
Ton Voon 2004-02-18 02:09:50 +00:00
parent 6c9be74d6b
commit 4efa91771a
1 changed files with 40 additions and 73 deletions
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113
plugins/check_dns.c
View file

@ -1,48 +1,20 @@
/******************************************************************************
*
* CHECK_DNS.C
*
* Program: DNS plugin for Nagios
* License: GPL
* Copyright (c) 1999 Ethan Galstad (nagios@nagios.org)
*
* Last Modified: $Date$
*
* Notes:
* - Safe popen added by Karl DeBisschop 9-11-99
* - expected-address parameter added by Alex Chaffee - 7 Oct 2002
*
* Command line: (see print_usage)
*
* Description:
*
* This program will use the nslookup program to obtain the IP address
* for a given host name. A optional DNS server may be specified. If
* no DNS server is specified, the default server(s) for the system
* are used.
*
* Return Values:
* OK The DNS query was successful (host IP address was returned).
* WARNING The DNS server responded, but could not fulfill the request.
* CRITICAL The DNS server is not responding or encountered an error.
*
* 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.
*
*****************************************************************************/
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.
******************************************************************************/
#include "common.h"
#include "popen.h"
@ -51,7 +23,7 @@
const char *progname = "check_dns";
const char *revision = "$Revision$";
const char *copyright = "2000-2003";
const char *copyright = "2000-2004";
const char *email = "nagiosplug-devel@lists.sourceforge.net";
int process_arguments (int, char **);
@ -81,6 +53,7 @@ main (int argc, char **argv)
long microsec;
struct timeval tv;
int multi_address;
int parse_address = FALSE; /* This flag scans for Address: but only after Name: */
setlocale (LC_ALL, "");
bindtextdomain (PACKAGE, LOCALEDIR);
@ -105,6 +78,7 @@ main (int argc, char **argv)
if (verbose)
printf ("%s\n", command_line);
/* run the command */
child_process = spopen (command_line);
if (child_process == NULL) {
@ -120,7 +94,7 @@ main (int argc, char **argv)
while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process)) {
if (verbose)
printf ("%s\n", input_buffer);
printf ("%s", input_buffer);
if (strstr (input_buffer, ".in-addr.arpa")) {
if ((temp_buffer = strstr (input_buffer, "name = ")))
@ -132,34 +106,26 @@ main (int argc, char **argv)
}
/* the server is responding, we just got the host name... */
if (strstr (input_buffer, "Name:")) {
if (strstr (input_buffer, "Name:"))
parse_address = TRUE;
else if (strstr (input_buffer, "Address:") && parse_address == TRUE) {
temp_buffer = index (input_buffer, ':');
temp_buffer++;
/* get the host address */
if (!fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process))
break;
if (verbose)
printf ("%s\n", input_buffer);
if ((temp_buffer = index (input_buffer, ':'))) {
temp_buffer++;
/* Strip leading spaces */
for (; *temp_buffer != '\0' && *temp_buffer == ' '; temp_buffer++)
/* NOOP */;
address = strdup (temp_buffer);
strip (address);
if (address==NULL || strlen(address)==0)
die (STATE_CRITICAL,
_("DNS CRITICAL - '%s' returned empty host name string\n"),
/* Strip leading spaces */
for (; *temp_buffer != '\0' && *temp_buffer == ' '; temp_buffer++)
/* NOOP */;
strip(temp_buffer);
if (temp_buffer==NULL || strlen(temp_buffer)==0) {
die (STATE_CRITICAL, _("DNS CRITICAL - '%s' returned empty host name string\n"),
NSLOOKUP_COMMAND);
result = STATE_OK;
}
else {
output = strdup (_("Unknown error (plugin)"));
result = STATE_WARNING;
}
break;
if (address == NULL)
address = strdup (temp_buffer);
else
asprintf(&address, "%s,%s", address, temp_buffer);
}
result = error_scan (input_buffer);
@ -212,9 +178,10 @@ main (int argc, char **argv)
else
multi_address = TRUE;
printf (_("DNS ok - %.3f seconds response time, address%s %s|%s\n"),
elapsed_time, (multi_address==TRUE ? "es are" : " is"), address,
perfdata ("time", microsec, "us", FALSE, 0, FALSE, 0, TRUE, 0, FALSE, 0));
printf ("%s %s: ", _("DNS"), _("OK"));
printf (ngettext("%.3f second response time, ", "%.3f seconds response time, ", elapsed_time), elapsed_time);
printf (_("%s returns %s"), query_address, address);
printf ("|%s\n", perfdata ("time", microsec, "us", FALSE, 0, FALSE, 0, TRUE, 0, FALSE, 0));
}
else if (result == STATE_WARNING)
printf (_("DNS WARNING - %s\n"),