![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/plugins/check_dig.c b/plugins/check_dig.c
index 57609acdce705930d0742ea5fc9d349abf6a3699..4394490e8723ea0fe31c2a0a5d71ca1b0eb022b4 100644 (file)
--- a/plugins/check_dig.c
+++ b/plugins/check_dig.c
-/******************************************************************************
-*
-* check_dig.c
-*
-* Program: dig plugin for Nagios
-* License: GPL
-* Copyright (c) 2000
-*
-* $Id$
-*
+/*****************************************************************************
+
+ 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.
+
+ $Id$
+
*****************************************************************************/
-#include "config.h"
+const char *progname = "check_dig";
+const char *revision = "$Revision$";
+const char *copyright = "2002-2004";
+const char *email = "nagiosplug-devel@lists.sourceforge.net";
+
#include "common.h"
+#include "netutils.h"
#include "utils.h"
#include "popen.h"
-#define PROGNAME "check_dig"
-
int process_arguments (int, char **);
-int call_getopt (int, char **);
int validate_arguments (void);
-int check_disk (int usp, int free_disk);
void print_help (void);
void print_usage (void);
+enum {
+ UNDEFINED = 0,
+ 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 input_buffer[MAX_INPUT_BUFFER];
- char *command_line = NULL;
- char *output = NULL;
+ char *command_line;
+ char *output;
+ char *t;
+ long microsec;
+ double elapsed_time;
int result = STATE_UNKNOWN;
+ output = strdup ("");
+
+ setlocale (LC_ALL, "");
+ bindtextdomain (PACKAGE, LOCALEDIR);
+ textdomain (PACKAGE);
+
/* Set signal handling and alarm */
if (signal (SIGALRM, popen_timeout_alarm_handler) == SIG_ERR)
- usage ("Cannot catch SIGALRM\n");
+ usage4 (_("Cannot catch SIGALRM"));
- if (process_arguments (argc, argv) != OK)
- usage ("Could not parse arguments\n");
+ if (process_arguments (argc, argv) == ERROR)
+ usage4 (_("Could not parse arguments"));
/* get the command to run */
- command_line =
- ssprintf (command_line, "%s @%s %s", PATH_TO_DIG, dns_server,
- query_address);
+ asprintf (&command_line, "%s @%s -p %d %s -t %s",
+ PATH_TO_DIG, dns_server, server_port, query_address, record_type);
alarm (timeout_interval);
- time (&start_time);
+ gettimeofday (&tv, NULL);
- if (verbose)
+ 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 */
child_process = spopen (command_line);
if (child_process == NULL) {
- printf ("Could not open pipe: %s\n", command_line);
+ printf (_("Could not open pipe: %s\n"), command_line);
return STATE_UNKNOWN;
}
child_stderr = fdopen (child_stderr_array[fileno (child_process)], "r");
if (child_stderr == NULL)
- printf ("Could not open stderr for %s\n", command_line);
-
- output = strscpy (output, "");
+ printf (_("Could not open stderr for %s\n"), command_line);
while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process)) {
/* the server is responding, we just got the host name... */
if (strstr (input_buffer, ";; ANSWER SECTION:")) {
- /* get the host address */
- if (!fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process))
- break;
-
- if (strpbrk (input_buffer, "\r\n"))
- input_buffer[strcspn (input_buffer, "\r\n")] = '\0';
-
- if (strstr (input_buffer, query_address) == input_buffer) {
- output = strscpy (output, input_buffer);
- result = STATE_OK;
- }
- else {
- strcpy (output, "Server not found in ANSWER SECTION");
- result = STATE_WARNING;
- }
-
- continue;
+ /* loop through the whole 'ANSWER SECTION' */
+ do {
+ /* get the host address */
+ if (!fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process))
+ break;
+
+ if (strpbrk (input_buffer, "\r\n"))
+ input_buffer[strcspn (input_buffer, "\r\n")] = '\0';
+
+ if (verbose && !strstr (input_buffer, ";; "))
+ printf ("%s\n", input_buffer);
+
+ if (expected_address==NULL && strstr (input_buffer, query_address) != NULL) {
+ output = strdup(input_buffer);
+ result = STATE_OK;
+ }
+ else if (expected_address != NULL && strstr (input_buffer, expected_address) != NULL) {
+ output = strdup(input_buffer);
+ result = STATE_OK;
+ }
+
+ /* Translate output TAB -> SPACE */
+ t = output;
+ while ((t = index(t, '\t')) != NULL)
+ *t = ' ';
+
+ } while (!strstr (input_buffer, ";; "));
+
+ if (result == STATE_UNKNOWN) {
+ asprintf (&output, _("Server not found in ANSWER SECTION"));
+ result = STATE_WARNING;
+ }
}
}
- if (result != STATE_OK) {
- strcpy (output, "No ANSWER SECTION found");
+ if (result == STATE_UNKNOWN) {
+ asprintf (&output, _("No ANSWER SECTION found"));
}
while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_stderr)) {
/* If we get anything on STDERR, at least set warning */
- result = max (result, STATE_WARNING);
+ result = max_state (result, STATE_WARNING);
printf ("%s", input_buffer);
- if (!strcmp (output, ""))
- strcpy (output, 1 + index (input_buffer, ':'));
+ if (strlen (output) == 0)
+ output = strdup (1 + index (input_buffer, ':'));
}
(void) fclose (child_stderr);
/* close the pipe */
if (spclose (child_process)) {
- result = max (result, STATE_WARNING);
- if (!strcmp (output, ""))
- strcpy (output, "nslookup returned error status");
+ result = max_state (result, STATE_WARNING);
+ if (strlen (output) == 0)
+ asprintf (&output, _("dig returned an error status"));
}
- (void) time (&end_time);
-
- if (result == STATE_OK)
- printf ("DNS ok - %d seconds response time (%s)\n",
- (int) (end_time - start_time), output);
- else if (result == STATE_WARNING)
- printf ("DNS WARNING - %s\n",
- !strcmp (output,
- "") ? " Probably a non-existent host/domain" : output);
- else if (result == STATE_CRITICAL)
- printf ("DNS CRITICAL - %s\n",
- !strcmp (output,
- "") ? " Probably a non-existent host/domain" : output);
- else
- printf ("DNS problem - %s\n",
- !strcmp (output,
- "") ? " Probably a non-existent host/domain" : output);
-
- return result;
-}
-
-/* process command-line arguments */
-int
-process_arguments (int argc, char **argv)
-{
- int c;
-
- if (argc < 2)
- return ERROR;
-
+ microsec = deltime (tv);
+ elapsed_time = (double)microsec / 1.0e6;
- c = 0;
- while ((c += (call_getopt (argc - c, &argv[c]))) < argc) {
+ if (output == NULL || strlen (output) == 0)
+ asprintf (&output, _(" Probably a non-existent host/domain"));
- if (is_option (argv[c]))
- continue;
+ if (critical_interval > UNDEFINED && elapsed_time > critical_interval)
+ result = STATE_CRITICAL;
- if (dns_server == NULL) {
- if (is_host (argv[c])) {
- dns_server = argv[c];
- }
- else {
- usage ("Invalid host name");
- }
- }
- }
+ else if (warning_interval > UNDEFINED && elapsed_time > warning_interval)
+ result = STATE_WARNING;
- if (dns_server == NULL)
- dns_server = strscpy (NULL, "127.0.0.1");
+ asprintf (&output, _("%.3f seconds response time (%s)"), elapsed_time, output);
- return validate_arguments ();
+ printf ("DNS %s - %s|%s\n",
+ state_text (result), output,
+ 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
-call_getopt (int argc, char **argv)
+process_arguments (int argc, char **argv)
{
- int c, i = 0;
+ int c;
-#ifdef HAVE_GETOPT_H
- int option_index = 0;
- static struct option long_options[] = {
+ int option = 0;
+ static struct option longopts[] = {
{"hostname", required_argument, 0, 'H'},
- {"query_address", required_argument, 0, 'e'},
+ {"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'},
{0, 0, 0, 0}
};
-#endif
- while (1) {
-#ifdef HAVE_GETOPT_H
- c = getopt_long (argc, argv, "+hVvt:l:H:", long_options, &option_index);
-#else
- c = getopt (argc, argv, "+?hVvt:l:H:");
-#endif
+ if (argc < 2)
+ return ERROR;
- i++;
+ while (1) {
+ c = getopt_long (argc, argv, "hVvt:l:H:w:c:T:a:", longopts, &option);
- if (c == -1 || c == EOF || c == 1)
+ if (c == -1 || c == EOF)
break;
switch (c) {
- case 't':
- case 'l':
- case 'H':
- i++;
- }
-
- switch (c) {
+ case '?': /* help */
+ usage2 (_("Unknown argument"), optarg);
+ case 'h': /* help */
+ print_help ();
+ exit (STATE_OK);
+ case 'V': /* version */
+ print_revision (progname, revision);
+ exit (STATE_OK);
case 'H': /* hostname */
if (is_host (optarg)) {
dns_server = optarg;
}
else {
- usage ("Invalid host name\n");
+ usage2 (_("Invalid hostname/address"), optarg);
+ }
+ break;
+ case 'p': /* server port */
+ if (is_intpos (optarg)) {
+ server_port = atoi (optarg);
+ }
+ else {
+ usage2 (_("Port must be a positive integer"), optarg);
}
break;
- case 'l': /* username */
+ case 'l': /* address to lookup */
query_address = optarg;
break;
- case 'v': /* verbose */
- verbose = TRUE;
+ case 'w': /* warning */
+ if (is_nonnegative (optarg)) {
+ warning_interval = strtod (optarg, NULL);
+ }
+ else {
+ usage2 (_("Warning interval must be a positive integer"), optarg);
+ }
+ break;
+ case 'c': /* critical */
+ if (is_nonnegative (optarg)) {
+ critical_interval = strtod (optarg, NULL);
+ }
+ else {
+ usage2 (_("Critical interval must be a positive integer"), optarg);
+ }
break;
case 't': /* timeout */
if (is_intnonneg (optarg)) {
timeout_interval = atoi (optarg);
}
else {
- usage ("Time interval must be a nonnegative integer\n");
+ usage2 (_("Timeout interval must be a positive integer"), optarg);
}
break;
- case 'V': /* version */
- print_revision (PROGNAME, "$Revision$");
- exit (STATE_OK);
- case 'h': /* help */
- print_help ();
- exit (STATE_OK);
- case '?': /* help */
- usage ("Invalid argument\n");
+ case 'v': /* verbose */
+ verbose = TRUE;
+ break;
+ case 'T':
+ record_type = optarg;
+ break;
+ case 'a':
+ expected_address = optarg;
+ break;
}
}
- return i;
-}
+ c = optind;
+ if (dns_server == NULL) {
+ if (c < argc) {
+ if (is_host (argv[c])) {
+ dns_server = argv[c];
+ }
+ else {
+ usage2 (_("Invalid hostname/address"), argv[c]);
+ }
+ }
+ else {
+ dns_server = strdup ("127.0.0.1");
+ }
+ }
+ return validate_arguments ();
+}
-
-
void
print_help (void)
{
- print_revision (PROGNAME, "$Revision$");
- printf
- ("Copyright (c) 2000 Karl DeBisschop\n\n"
- "This plugin use dig to test the DNS service on the specified host.\n\n");
+ 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 (_("Test the DNS service on the specified host using dig\n\n"));
+
print_usage ();
- printf
- ("\nOptions:\n"
- " -H, --hostname=STRING or IPADDRESS\n"
- " Check server on the indicated host\n"
- " -l, --lookup=STRING\n"
- " machine name to lookup\n"
- " -t, --timeout=INTEGER\n"
- " Seconds before connection attempt times out (default: %d)\n"
- " -v, --verbose\n"
- " Print extra information (command-line use only)\n"
- " -h, --help\n"
- " Print detailed help screen\n"
- " -V, --version\n"
- " Print version information\n\n", DEFAULT_SOCKET_TIMEOUT);
- support ();
-}
+ printf (_(UT_HELP_VRSN));
+
+ printf (_(UT_HOST_PORT), 'P', myport);
+
+ printf (_("\
+ -l, --lookup=STRING\n\
+ machine name to lookup\n"));
+ printf (_("\
+ -T, --record_type=STRING\n\
+ record type to lookup (default: A)\n"));
+
+ printf (_("\
+ -a, --expected_address=STRING\n\
+ an address expected to be in the answer section.\n\
+ if not set, uses whatever was in -l\n"));
+
+ printf (_(UT_WARN_CRIT));
+
+ printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
+
+ printf (_(UT_VERBOSE));
+
+ printf (_(UT_SUPPORT));
+}
void
print_usage (void)
{
- printf
- ("Usage: %s -H host -l lookup [-t timeout] [-v]\n"
- " %s --help\n"
- " %s --version\n", PROGNAME, PROGNAME, PROGNAME);
+ printf ("\
+Usage: %s -H host -l lookup [-p <server port>] [-T <query type>]\n\
+ [-w <warning interval>] [-c <critical interval>] [-t <timeout>]\n\
+ [-a <expected answer address>] [-v]\n", progname);
}