Imported Upstream version 1.4.5
This commit is contained in:
parent
62d1e7d5fe
commit
6a280f6f24
412 changed files with 168642 additions and 0 deletions
340
plugins/check_dig.c
Normal file
340
plugins/check_dig.c
Normal file
|
|
@ -0,0 +1,340 @@
|
|||
/*****************************************************************************
|
||||
*
|
||||
* Nagios check_dig plugin
|
||||
*
|
||||
* License: GPL
|
||||
* Copyright (c) 1999-2006 nagios-plugins team
|
||||
*
|
||||
* Last Modified: $Date: 2006/10/19 00:25:16 $
|
||||
*
|
||||
* Description:
|
||||
*
|
||||
* This file contains the check_dig plugin
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* $Id: check_dig.c,v 1.45 2006/10/19 00:25:16 opensides Exp $
|
||||
*
|
||||
*****************************************************************************/
|
||||
|
||||
/* Hackers note:
|
||||
* There are typecasts to (char *) from _("foo bar") in this file.
|
||||
* They prevent compiler warnings. Never (ever), permute strings obtained
|
||||
* that are typecast from (const char *) (which happens when --disable-nls)
|
||||
* because on some architectures those strings are in non-writable memory */
|
||||
|
||||
const char *progname = "check_dig";
|
||||
const char *revision = "$Revision: 1.45 $";
|
||||
const char *copyright = "2002-2006";
|
||||
const char *email = "nagiosplug-devel@lists.sourceforge.net";
|
||||
|
||||
#include "common.h"
|
||||
#include "netutils.h"
|
||||
#include "utils.h"
|
||||
#include "runcmd.h"
|
||||
|
||||
int process_arguments (int, char **);
|
||||
int validate_arguments (void);
|
||||
void print_help (void);
|
||||
void print_usage (void);
|
||||
|
||||
#define UNDEFINED 0
|
||||
#define DEFAULT_PORT 53
|
||||
|
||||
char *query_address = NULL;
|
||||
char *record_type = "A";
|
||||
char *expected_address = NULL;
|
||||
char *dns_server = NULL;
|
||||
int verbose = FALSE;
|
||||
int server_port = DEFAULT_PORT;
|
||||
double warning_interval = UNDEFINED;
|
||||
double critical_interval = UNDEFINED;
|
||||
struct timeval tv;
|
||||
|
||||
int
|
||||
main (int argc, char **argv)
|
||||
{
|
||||
char *command_line;
|
||||
output chld_out, chld_err;
|
||||
char *msg = NULL;
|
||||
size_t i;
|
||||
char *t;
|
||||
long microsec;
|
||||
double elapsed_time;
|
||||
int result = STATE_UNKNOWN;
|
||||
|
||||
setlocale (LC_ALL, "");
|
||||
bindtextdomain (PACKAGE, LOCALEDIR);
|
||||
textdomain (PACKAGE);
|
||||
|
||||
/* Set signal handling and alarm */
|
||||
if (signal (SIGALRM, popen_timeout_alarm_handler) == SIG_ERR)
|
||||
usage_va(_("Cannot catch SIGALRM"));
|
||||
|
||||
if (process_arguments (argc, argv) == ERROR)
|
||||
usage_va(_("Could not parse arguments"));
|
||||
|
||||
/* 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);
|
||||
|
||||
alarm (timeout_interval);
|
||||
gettimeofday (&tv, NULL);
|
||||
|
||||
if (verbose) {
|
||||
printf ("%s\n", command_line);
|
||||
if(expected_address != NULL) {
|
||||
printf (_("Looking for: '%s'\n"), expected_address);
|
||||
} else {
|
||||
printf (_("Looking for: '%s'\n"), query_address);
|
||||
}
|
||||
}
|
||||
|
||||
/* run the command */
|
||||
if(np_runcmd(command_line, &chld_out, &chld_err, 0) != 0) {
|
||||
result = STATE_WARNING;
|
||||
msg = (char *)_("dig returned an error status");
|
||||
}
|
||||
|
||||
for(i = 0; i < chld_out.lines; i++) {
|
||||
/* the server is responding, we just got the host name... */
|
||||
if (strstr (chld_out.line[i], ";; ANSWER SECTION:")) {
|
||||
|
||||
/* loop through the whole 'ANSWER SECTION' */
|
||||
for(; i < chld_out.lines; i++) {
|
||||
/* get the host address */
|
||||
if (verbose)
|
||||
printf ("%s\n", chld_out.line[i]);
|
||||
|
||||
if (strstr (chld_out.line[i], (expected_address == NULL ? query_address : expected_address)) != NULL) {
|
||||
msg = chld_out.line[i];
|
||||
result = STATE_OK;
|
||||
|
||||
/* Translate output TAB -> SPACE */
|
||||
t = msg;
|
||||
while ((t = strchr(t, '\t')) != NULL) *t = ' ';
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (result == STATE_UNKNOWN) {
|
||||
msg = (char *)_("Server not found in ANSWER SECTION");
|
||||
result = STATE_WARNING;
|
||||
}
|
||||
|
||||
/* we found the answer section, so break out of the loop */
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (result == STATE_UNKNOWN)
|
||||
msg = (char *)_("No ANSWER SECTION found");
|
||||
|
||||
/* If we get anything on STDERR, at least set warning */
|
||||
if(chld_err.buflen > 0) {
|
||||
result = max_state(result, STATE_WARNING);
|
||||
if(!msg) for(i = 0; i < chld_err.lines; i++) {
|
||||
msg = strchr(chld_err.line[0], ':');
|
||||
if(msg) {
|
||||
msg++;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
microsec = deltime (tv);
|
||||
elapsed_time = (double)microsec / 1.0e6;
|
||||
|
||||
if (critical_interval > UNDEFINED && elapsed_time > critical_interval)
|
||||
result = STATE_CRITICAL;
|
||||
|
||||
else if (warning_interval > UNDEFINED && elapsed_time > warning_interval)
|
||||
result = STATE_WARNING;
|
||||
|
||||
printf ("DNS %s - %.3f seconds response time (%s)|%s\n",
|
||||
state_text (result), elapsed_time,
|
||||
msg ? msg : _("Probably a non-existent host/domain"),
|
||||
fperfdata("time", elapsed_time, "s",
|
||||
(warning_interval>UNDEFINED?TRUE:FALSE),
|
||||
warning_interval,
|
||||
(critical_interval>UNDEFINED?TRUE:FALSE),
|
||||
critical_interval,
|
||||
TRUE, 0, FALSE, 0));
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/* process command-line arguments */
|
||||
int
|
||||
process_arguments (int argc, char **argv)
|
||||
{
|
||||
int c;
|
||||
|
||||
int option = 0;
|
||||
static struct option longopts[] = {
|
||||
{"hostname", required_argument, 0, 'H'},
|
||||
{"query_address", required_argument, 0, 'l'},
|
||||
{"warning", required_argument, 0, 'w'},
|
||||
{"critical", required_argument, 0, 'c'},
|
||||
{"timeout", required_argument, 0, 't'},
|
||||
{"verbose", no_argument, 0, 'v'},
|
||||
{"version", no_argument, 0, 'V'},
|
||||
{"help", no_argument, 0, 'h'},
|
||||
{"record_type", required_argument, 0, 'T'},
|
||||
{"expected_address", required_argument, 0, 'a'},
|
||||
{"port", required_argument, 0, 'p'},
|
||||
{0, 0, 0, 0}
|
||||
};
|
||||
|
||||
if (argc < 2)
|
||||
return ERROR;
|
||||
|
||||
while (1) {
|
||||
c = getopt_long (argc, argv, "hVvt:l:H:w:c:T:p:a:", longopts, &option);
|
||||
|
||||
if (c == -1 || c == EOF)
|
||||
break;
|
||||
|
||||
switch (c) {
|
||||
case 'h': /* help */
|
||||
print_help ();
|
||||
exit (STATE_OK);
|
||||
case 'V': /* version */
|
||||
print_revision (progname, revision);
|
||||
exit (STATE_OK);
|
||||
case 'H': /* hostname */
|
||||
host_or_die(optarg);
|
||||
dns_server = optarg;
|
||||
break;
|
||||
case 'p': /* server port */
|
||||
if (is_intpos (optarg)) {
|
||||
server_port = atoi (optarg);
|
||||
}
|
||||
else {
|
||||
usage_va(_("Port must be a positive integer - %s"), optarg);
|
||||
}
|
||||
break;
|
||||
case 'l': /* address to lookup */
|
||||
query_address = optarg;
|
||||
break;
|
||||
case 'w': /* warning */
|
||||
if (is_nonnegative (optarg)) {
|
||||
warning_interval = strtod (optarg, NULL);
|
||||
}
|
||||
else {
|
||||
usage_va(_("Warning interval must be a positive integer - %s"), optarg);
|
||||
}
|
||||
break;
|
||||
case 'c': /* critical */
|
||||
if (is_nonnegative (optarg)) {
|
||||
critical_interval = strtod (optarg, NULL);
|
||||
}
|
||||
else {
|
||||
usage_va(_("Critical interval must be a positive integer - %s"), optarg);
|
||||
}
|
||||
break;
|
||||
case 't': /* timeout */
|
||||
if (is_intnonneg (optarg)) {
|
||||
timeout_interval = atoi (optarg);
|
||||
}
|
||||
else {
|
||||
usage_va(_("Timeout interval must be a positive integer - %s"), optarg);
|
||||
}
|
||||
break;
|
||||
case 'v': /* verbose */
|
||||
verbose = TRUE;
|
||||
break;
|
||||
case 'T':
|
||||
record_type = optarg;
|
||||
break;
|
||||
case 'a':
|
||||
expected_address = optarg;
|
||||
break;
|
||||
default: /* usage_va */
|
||||
usage_va(_("Unknown argument - %s"), optarg);
|
||||
}
|
||||
}
|
||||
|
||||
c = optind;
|
||||
if (dns_server == NULL) {
|
||||
if (c < argc) {
|
||||
host_or_die(argv[c]);
|
||||
dns_server = argv[c];
|
||||
}
|
||||
else {
|
||||
dns_server = strdup ("127.0.0.1");
|
||||
}
|
||||
}
|
||||
|
||||
return validate_arguments ();
|
||||
}
|
||||
|
||||
|
||||
|
||||
int
|
||||
validate_arguments (void)
|
||||
{
|
||||
return OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
void
|
||||
print_help (void)
|
||||
{
|
||||
char *myport;
|
||||
|
||||
asprintf (&myport, "%d", DEFAULT_PORT);
|
||||
|
||||
print_revision (progname, revision);
|
||||
|
||||
printf ("Copyright (c) 2000 Karl DeBisschop <kdebisschop@users.sourceforge.net>\n");
|
||||
printf (COPYRIGHT, copyright, email);
|
||||
|
||||
printf (_("This plugin test the DNS service on the specified host using dig"));
|
||||
|
||||
printf ("\n\n");
|
||||
|
||||
print_usage ();
|
||||
|
||||
printf (_(UT_HELP_VRSN));
|
||||
|
||||
printf (_(UT_HOST_PORT), 'p', myport);
|
||||
|
||||
printf (" %s\n","-l, --lookup=STRING");
|
||||
printf (" %s\n",_("machine name to lookup"));
|
||||
printf (" %s\n","-T, --record_type=STRING");
|
||||
printf (" %s\n",_("record type to lookup (default: A)"));
|
||||
printf (" %s\n","-a, --expected_address=STRING");
|
||||
printf (" %s\n",_("an address expected to be in the answer section.if not set, uses whatever was in -l"));
|
||||
printf (_(UT_WARN_CRIT));
|
||||
printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
|
||||
printf (_(UT_VERBOSE));
|
||||
printf (_(UT_SUPPORT));
|
||||
}
|
||||
|
||||
|
||||
|
||||
void
|
||||
print_usage (void)
|
||||
{
|
||||
printf (_("Usage:"));
|
||||
printf ("%s -H host -l lookup [-p <server port>] [-T <query type>]", progname);
|
||||
printf (" [-w <warning interval>] [-c <critical interval>] [-t <timeout>]");
|
||||
printf (" [-a <expected answer address>] [-v]\n");
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue