X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=plugins%2Fcheck_dig.c;h=4394490e8723ea0fe31c2a0a5d71ca1b0eb022b4;hb=20d0154211fa46028383ed3a88b558731313c389;hp=384b380b8ba5afa291e7847ca8257f349b700639;hpb=f4c6f7f09305c1c9916da6ac4f7aadcb31e319e0;p=nagiosplug.git

diff --git a/plugins/check_dig.c b/plugins/check_dig.c
index 384b380..4394490 100644
--- a/plugins/check_dig.c
+++ b/plugins/check_dig.c
@@ -1,107 +1,155 @@
-/******************************************************************************
-*
-* 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_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);
@@ -109,141 +157,148 @@ main (int argc, char **argv)
 	/* close the pipe */
 	if (spclose (child_process)) {
 		result = max_state (result, STATE_WARNING);
-		if (!strcmp (output, ""))
-			strcpy (output, "nslookup returned error status");
+		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 ();
+}
 
 
 
@@ -255,42 +310,55 @@ validate_arguments (void)
 
 
 
-
-
 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);
 }