Merge pull request #398 from box293/check_dns

Fixed check_dns issue with Bind 9.11.x onwards

plugins/check_dns.c

@@ -3,7 +3,7 @@
 * Nagios check_dns plugin
 * 
 * License: GPL
-* Copyright (c) 2000-2014 Nagios Plugins Development Team
+* Copyright (c) 2000-2018 Nagios Plugins Development Team
 * 
 * Description:
 * 
@@ -29,14 +29,16 @@
 * 
 *****************************************************************************/
 #define IF_RECORD(label, querytype, verb_str, comp_str) if (strstr (chld_out.line[i], label) && (strncmp(query_type, querytype, query_size) == 0 || strncmp(query_type, "-querytype=ANY", query_size) == 0)) { \
-      if (verbose) printf(verb_str); \
+      if (verbose) { \
+          printf(verb_str); \
+      } \
       temp_buffer = rindex (chld_out.line[i], comp_str); \
       addresses[n_addresses++] = check_new_address(temp_buffer); \
       memset(query_found, '\0', sizeof(query_found)); \
       strncpy(query_found, querytype, sizeof(query_found)); 
 
 const char *progname = "check_dns";
-const char *copyright = "2000-2014";
+const char *copyright = "2000-2018";
 const char *email = "devel@nagios-plugins.org";
 
 #include "common.h"
@@ -66,532 +68,628 @@ int expect_authority = FALSE;
 int accept_cname = FALSE;
 thresholds *time_thresholds = NULL;
 
+
 static int
 qstrcmp(const void *p1, const void *p2)
 {
-	/* The actual arguments to this function are "pointers to
-	   pointers to char", but strcmp() arguments are "pointers
-	   to char", hence the following cast plus dereference */
-	return strcmp(* (char * const *) p1, * (char * const *) p2);
+    /* The actual arguments to this function are "pointers to
+       pointers to char", but strcmp() arguments are "pointers
+       to char", hence the following cast plus dereference */
+    return strcmp(* (char * const *) p1, * (char * const *) p2);
 }
 
+
 char *
 check_new_address(char *temp_buffer)
 {
-      temp_buffer++;
-      /* Strip leading spaces */
-      for (; *temp_buffer != '\0' && *temp_buffer == ' '; temp_buffer++)
+    temp_buffer++;
+    /* Strip leading spaces */
+    for (; *temp_buffer != '\0' && *temp_buffer == ' '; temp_buffer++) {
         /* NOOP */;
+    }
 
-      strip(temp_buffer);
-      if (temp_buffer==NULL || strlen(temp_buffer)==0)
+    strip(temp_buffer);
+    if (temp_buffer==NULL || strlen(temp_buffer)==0) {
         die (STATE_CRITICAL, "%s%s%s\n", _("DNS CRITICAL - '"), NSLOOKUP_COMMAND, _("' returned empty host name string"));
+    }
 
-      return temp_buffer;
+    return temp_buffer;
 }
 
+
 int
 main (int argc, char **argv)
 {
-  char *command_line = NULL;
-  char input_buffer[MAX_INPUT_BUFFER];
-  char *address = NULL; /* comma separated str with addrs/ptrs (sorted) */
-  char **addresses = NULL;
-  int n_addresses = 0;
-  char *msg = NULL;
-  char query_found[24] = "";
-  int query_size = 24;
-  char *temp_buffer = NULL;
-  int non_authoritative = FALSE;
-  int result = STATE_UNKNOWN;
-  double elapsed_time;
-  long microsec;
-  struct timeval tv;
-  int parse_address = FALSE; /* This flag scans for Address: but only after Name: */
-  output chld_out, chld_err;
-  size_t i;
-
-  setlocale (LC_ALL, "");
-  bindtextdomain (PACKAGE, LOCALEDIR);
-  textdomain (PACKAGE);
-
-  /* Set signal handling and alarm */
-  if (signal (SIGALRM, runcmd_timeout_alarm_handler) == SIG_ERR)
-    usage_va(_("Cannot catch SIGALRM"));
-
-  /* Parse extra opts if any */
-  argv=np_extra_opts (&argc, argv, progname);
-
-  if (process_arguments (argc, argv) == ERROR)
-    usage_va(_("Could not parse arguments"));
-
-  /* get the command to run */
-  xasprintf (&command_line, "%s %s %s %s", NSLOOKUP_COMMAND, query_type, query_address, dns_server);
-
-  alarm (timeout_interval);
-  gettimeofday (&tv, NULL);
-
-  if (verbose)
-    printf ("%s\n", command_line);
-
-  /* run the command */
-  if((np_runcmd(command_line, &chld_out, &chld_err, 0)) != 0) {
-    msg = strdup(_("nslookup returned an error status"));
-    result = STATE_WARNING;
-  }
-
-  /* scan stdout */
-  for(i = 0; i < chld_out.lines; i++) {
-    if (addresses == NULL)
-      addresses = malloc(sizeof(*addresses)*10);
-    else if (!(n_addresses % 10))
-      addresses = realloc(addresses,sizeof(*addresses) * (n_addresses + 10));
-
-    if (verbose)
-      puts(chld_out.line[i]);
-
-    /* bug ID: 2946553 - Older versions of bind will use all available dns
-    + servers, we have to match the one specified */
-    if (strlen(dns_server) > 0 && strstr(chld_out.line[i], "Server:")) {
-        temp_buffer = strchr(chld_out.line[i], ':');
-        temp_buffer++;
-
-	if (temp_buffer > (char *)1) {
-          /* Strip leading tabs */
-          for (; *temp_buffer != '\0' && *temp_buffer == '\t'; temp_buffer++)
-            /* NOOP */;
-
-        strip(temp_buffer);
-        if (temp_buffer==NULL || strlen(temp_buffer)==0)
-          die (STATE_CRITICAL, "%s%s%s\n", _("DNS CRITICAL - '"), NSLOOKUP_COMMAND, _("' returned empty server string"));
-
-        if (strcmp(temp_buffer, dns_server) != 0)
-          die (STATE_CRITICAL, "%s %s\n", _("DNS CRITICAL - No response from DNS server:"), dns_server);
-      }
-    }
-    /* Provide the server name\ip to error_scan when not using -s */
-    else if (strlen(tmp_dns_server) == 0) {
-	temp_buffer = strchr(chld_out.line[i], ':');
-	temp_buffer++;
-	if (temp_buffer > (char *)1) {
-	  /* Strip leading tabs */
-	  for (; *temp_buffer != '\0' && *temp_buffer == '\t'; temp_buffer++)
-	      /* NOOP */;
-
-	  strip(temp_buffer);
-	  strncpy(tmp_dns_server, temp_buffer, ADDRESS_LENGTH);
-	}
+    char *command_line = NULL;
+    char input_buffer[MAX_INPUT_BUFFER];
+    char *address = NULL; /* comma separated str with addrs/ptrs (sorted) */
+    char **addresses = NULL;
+    int n_addresses = 0;
+    char *msg = NULL;
+    char query_found[24] = "";
+    int query_size = 24;
+    char *temp_buffer = NULL;
+    int non_authoritative = FALSE;
+    int result = STATE_UNKNOWN;
+    double elapsed_time;
+    long microsec;
+    struct timeval tv;
+    int parse_address = FALSE; /* This flag scans for Address: but only after Name: */
+    output chld_out, chld_err;
+    size_t i;
+
+    setlocale (LC_ALL, "");
+    bindtextdomain (PACKAGE, LOCALEDIR);
+    textdomain (PACKAGE);
+
+    /* Set signal handling and alarm */
+    if (signal (SIGALRM, runcmd_timeout_alarm_handler) == SIG_ERR) {
+        usage_va(_("Cannot catch SIGALRM"));
     }
 
-    if (strstr (chld_out.line[i], "Authoritative answers can be found from:"))
-      break;
-    /* the server is responding, we just got the host name...*/
-    if (strstr (chld_out.line[i], "Name:"))
-      parse_address = TRUE;
-    /* begin handling types of records */
-    IF_RECORD("AAAA address", "-querytype=AAAA", "Found AAAA record\n", ' ') }
-    else IF_RECORD("exchanger =", "-querytype=MX", "Found MX record\n", '=') }
-    else IF_RECORD("service =", "-querytype=SRV", "Found SRV record\n", ' ') }
-    else IF_RECORD("nameserver =", "-querytype=NS", "Found NS record\n", ' ') }
-    else IF_RECORD("dname =", "-querytype=DNAME", "Found DNAME record\n", ' ') }
-    else IF_RECORD("protocol =", "-querytype=WKS", "Found WKS record\n", ' ') }
-    else if (strstr (chld_out.line[i], "text =") && (strncmp(query_type, "-querytype=TXT", query_size) == 0 || strncmp(query_type, "-querytype=ANY", query_size) == 0)) {
-      if (verbose) printf("Found TXT record\n");
-      temp_buffer = index(chld_out.line[i], '"');
-      --temp_buffer;
-      addresses[n_addresses++] = check_new_address(temp_buffer);
-      memset(query_found, '\0', sizeof(query_found));
-      strncpy(query_found, "-querytype=TXT", sizeof(query_found)); 
-    }
+    /* Parse extra opts if any */
+    argv=np_extra_opts (&argc, argv, progname);
 
-    /* only matching for origin records, if requested other fields could be included at a later date */
-    else IF_RECORD("origin =", "-querytype=SOA", "Found SOA record\n", ' ') }
-    /* cnames cannot use macro as we must check for accepting them separately */
-    else if (accept_cname && strstr (chld_out.line[i], "canonical name =") && (strncmp(query_type, "-querytype=CNAME", query_size) == 0 || strncmp(query_type, "-querytype=ANY", query_size) == 0)) {
-      if (verbose) printf("Found CNAME record\n");
-      temp_buffer = index (chld_out.line[i], '=');
-      addresses[n_addresses++] = check_new_address(temp_buffer);
-      strncpy(query_found, "-querytype=CNAME", sizeof(query_found));
+    if (process_arguments (argc, argv) == ERROR) {
+        usage_va(_("Could not parse arguments"));
     }
-    /* does not need strncmp as we want A at all times unless another record match */
-    else if (parse_address == TRUE && (strstr (chld_out.line[i], "Address:") || strstr (chld_out.line[i], "Addresses:"))) {
-      if (verbose) printf("Found A record\n");
-      temp_buffer = index (chld_out.line[i], ':');
-      addresses[n_addresses++] = check_new_address(temp_buffer);
-      strncpy(query_found, "-querytype=A", sizeof(query_found));
+
+    /* get the command to run */
+    xasprintf (&command_line, "%s %s %s %s", NSLOOKUP_COMMAND, query_type, query_address, dns_server);
+
+    alarm (timeout_interval);
+    gettimeofday (&tv, NULL);
+
+    if (verbose) {
+        printf ("%s\n", command_line);
     }
-    /* must be after other records with "name" as an identifier, as ptr does not spefify */
-    else IF_RECORD("name =", "-querytype=PTR", "Found PTR record\n", ' ') }
-    /* needed for non-query ptr\reverse lookup checks */
-    else if (strstr(chld_out.line[i], ".in-addr.arpa") && !query_set) {
-      if ((temp_buffer = strstr(chld_out.line[i], "name = ")))
-        addresses[n_addresses++] = strdup(temp_buffer);
-      else {
-        xasprintf(&msg, "%s %s %s %s", _("Warning plugin error"));
+
+    /* run the command */
+    if((np_runcmd(command_line, &chld_out, &chld_err, 0)) != 0) {
+        msg = strdup(_("nslookup returned an error status"));
         result = STATE_WARNING;
-      }
     }
 
-    if (strstr (chld_out.line[i], _("Non-authoritative answer:")))
-      non_authoritative = TRUE;
-
-    int tmp = error_scan(chld_out.line[i]);
-    result = (result == STATE_UNKNOWN)
-      ? tmp
-      : (result < tmp)
-        ? tmp : result;
-    if (result != STATE_OK) {
-      msg = strchr (chld_out.line[i], ':');
-      if(msg)
-			  msg++;
-			else
-			 msg = chld_out.line[i];
-      break;
-    }
-  }
-
-  /* scan stderr */
-  for(i = 0; i < chld_err.lines; i++) { 
-    if (verbose)
-      puts(chld_err.line[i]);
-
-    if (error_scan (chld_err.line[i]) != STATE_OK) {
-      result = max_state (result, error_scan (chld_err.line[i]));
-      msg = strchr(chld_err.line[i], ':');
-      if(msg)
-			  msg++;
-			else
-			  msg = chld_err.line[i];
+    /* scan stdout */
+    for(i = 0; i < chld_out.lines; i++) {
+        if (addresses == NULL) {
+            addresses = malloc(sizeof(*addresses)*10);
+        }
+        else if (!(n_addresses % 10)) {
+            addresses = realloc(addresses,sizeof(*addresses) * (n_addresses + 10));
+        }
+
+        if (verbose) {
+            puts(chld_out.line[i]);
+        }
+
+        /* bug ID: 2946553 - Older versions of bind will use all available dns
+        + servers, we have to match the one specified */
+        if (strlen(dns_server) > 0 && strstr(chld_out.line[i], "Server:")) {
+            temp_buffer = strchr(chld_out.line[i], ':');
+            temp_buffer++;
+
+            if (temp_buffer > (char *)1) {
+                /* Strip leading tabs */
+                for (; *temp_buffer != '\0' && *temp_buffer == '\t'; temp_buffer++) {
+                    /* NOOP */;
+                }
+
+                strip(temp_buffer);
+                if (temp_buffer==NULL || strlen(temp_buffer)==0) {
+                    die (STATE_CRITICAL, "%s%s%s\n", _("DNS CRITICAL - '"), NSLOOKUP_COMMAND, _("' returned empty server string"));
+                }
+
+                if (strcmp(temp_buffer, dns_server) != 0) {
+                    die (STATE_CRITICAL, "%s %s\n", _("DNS CRITICAL - No response from DNS server:"), dns_server);
+                }
+            }
+        }
+        /* Provide the server name\ip to error_scan when not using -s */
+        else if (strlen(tmp_dns_server) == 0) {
+            temp_buffer = strchr(chld_out.line[i], ':');
+            temp_buffer++;
+            if (temp_buffer > (char *)1) {
+                /* Strip leading tabs */
+                for (; *temp_buffer != '\0' && *temp_buffer == '\t'; temp_buffer++) {
+                    /* NOOP */;
+                }
+                strip(temp_buffer);
+                strncpy(tmp_dns_server, temp_buffer, ADDRESS_LENGTH);
+            }
+        }
+
+        if (strstr (chld_out.line[i], "Authoritative answers can be found from:")) {
+            break;
+        }
+        /* the server is responding, we just got the host name...*/
+        if (strstr (chld_out.line[i], "Name:")) {
+            parse_address = TRUE;
+        }
+        /* begin handling types of records */
+        IF_RECORD("AAAA address", "-querytype=AAAA", "Found AAAA record\n", ' ') }
+        else IF_RECORD("exchanger =", "-querytype=MX", "Found MX record\n", '=') }
+        else IF_RECORD("service =", "-querytype=SRV", "Found SRV record\n", ' ') }
+        else IF_RECORD("nameserver =", "-querytype=NS", "Found NS record\n", ' ') }
+        else IF_RECORD("dname =", "-querytype=DNAME", "Found DNAME record\n", ' ') }
+        else IF_RECORD("protocol =", "-querytype=WKS", "Found WKS record\n", ' ') }
+        else if (strstr (chld_out.line[i], "text =") && (strncmp(query_type, "-querytype=TXT", query_size) == 0 || strncmp(query_type, "-querytype=ANY", query_size) == 0)) {
+            if (verbose) {
+                printf("Found TXT record\n");
+            }
+            temp_buffer = index(chld_out.line[i], '"');
+            --temp_buffer;
+            addresses[n_addresses++] = check_new_address(temp_buffer);
+            memset(query_found, '\0', sizeof(query_found));
+            strncpy(query_found, "-querytype=TXT", sizeof(query_found)); 
+        }
+
+        /* only matching for origin records, if requested other fields could be included at a later date */
+        else IF_RECORD("origin =", "-querytype=SOA", "Found SOA record\n", ' ') }
+        /* cnames cannot use macro as we must check for accepting them separately */
+        else if (accept_cname && strstr (chld_out.line[i], "canonical name =") && (strncmp(query_type, "-querytype=CNAME", query_size) == 0 || strncmp(query_type, "-querytype=ANY", query_size) == 0)) {
+            if (verbose) {
+                printf("Found CNAME record\n");
+            }
+            temp_buffer = index (chld_out.line[i], '=');
+            addresses[n_addresses++] = check_new_address(temp_buffer);
+            strncpy(query_found, "-querytype=CNAME", sizeof(query_found));
+        }
+        /* does not need strncmp as we want A at all times unless another record match */
+        else if (parse_address == TRUE && (strstr (chld_out.line[i], "Address:") || strstr (chld_out.line[i], "Addresses:"))) {
+            temp_buffer = index (chld_out.line[i], ':');
+            char *temp_address = check_new_address(temp_buffer);
+            addresses[n_addresses++] = temp_address;
+            /* Bind 9.11.x onwards reports AAAA records the same as A records */
+            /* It is assumed that nslookup returns a valid IPv4 or IPv6 address */
+            /* Hence we'll look for a colon : in the address to detect an IPv6 address */
+            if (strstr(temp_address, ":")) {
+                if (verbose) {
+                    printf("Found AAAA record\n");
+                }
+                strncpy(query_found, "-querytype=AAAA", sizeof(query_found));
+            }
+            else {
+                if (verbose) {
+                    printf("Found A record\n");
+                }
+                strncpy(query_found, "-querytype=A", sizeof(query_found));
+            }
+        }
+        /* must be after other records with "name" as an identifier, as ptr does not spefify */
+        else IF_RECORD("name =", "-querytype=PTR", "Found PTR record\n", ' ') }
+        /* needed for non-query ptr\reverse lookup checks */
+        else if (strstr(chld_out.line[i], ".in-addr.arpa") && !query_set) {
+            if ((temp_buffer = strstr(chld_out.line[i], "name = "))) {
+                addresses[n_addresses++] = strdup(temp_buffer);
+            }
+            else {
+                xasprintf(&msg, "%s %s %s %s", _("Warning plugin error"));
+                result = STATE_WARNING;
+            }
+        }
+
+        if (strstr (chld_out.line[i], _("Non-authoritative answer:"))) {
+            non_authoritative = TRUE;
+        }
+
+        int tmp = error_scan(chld_out.line[i]);
+        result = (result == STATE_UNKNOWN)
+            ? tmp
+            : (result < tmp)
+                ? tmp : result;
+        if (result != STATE_OK) {
+            msg = strchr (chld_out.line[i], ':');
+            if(msg) {
+                msg++;
+            }
+            else {
+                msg = chld_out.line[i];
+            }
+            break;
+        }
+    }  /*This is the end of the scan stdout loop */
+
+    /* scan stderr */
+    for(i = 0; i < chld_err.lines; i++) {
+        if (verbose) {
+            puts(chld_err.line[i]);
+        }
+
+        if (error_scan (chld_err.line[i]) != STATE_OK) {
+            result = max_state (result, error_scan (chld_err.line[i]));
+            msg = strchr(chld_err.line[i], ':');
+            if(msg) {
+                msg++;
+            }
+            else {
+                msg = chld_err.line[i];
+            }
+        }
     }
-  }
-
-  if (addresses) {
-    int i,slen;
-    char *adrp;
-    qsort(addresses, n_addresses, sizeof(*addresses), qstrcmp);
-    for(i=0, slen=1; i < n_addresses; i++)
-      slen += strlen(addresses[i])+1;
-
-    adrp = address = malloc(slen);
-    for(i=0; i < n_addresses; i++) {
-      if (i) *adrp++ = ',';
-      strcpy(adrp, addresses[i]);
-      adrp += strlen(addresses[i]);
+
+    if (addresses) {
+        int i,slen;
+        char *adrp;
+        qsort(addresses, n_addresses, sizeof(*addresses), qstrcmp);
+        for(i=0, slen=1; i < n_addresses; i++) {
+            slen += strlen(addresses[i])+1;
+        }
+
+        adrp = address = malloc(slen);
+        for(i=0; i < n_addresses; i++) {
+            if (i) *adrp++ = ',';
+            strcpy(adrp, addresses[i]);
+            adrp += strlen(addresses[i]);
+        }
+        *adrp = 0;
+      }
+    else {
+        die (STATE_CRITICAL, "%s%s%s\n", _("DNS CRITICAL - '"), NSLOOKUP_COMMAND, _("' msg parsing exited with no address"));
     }
-    *adrp = 0;
-  } else
-    die (STATE_CRITICAL, "%s%s%s\n", _("DNS CRITICAL - '"), NSLOOKUP_COMMAND, _("' msg parsing exited with no address"));
-
-  /* compare to expected address */
-  if (result == STATE_OK && expected_address_cnt > 0) {
-    result = STATE_CRITICAL;
-    temp_buffer = "";
-    for (i=0; i<expected_address_cnt; i++) {
-      /* check if we get a match and prepare an error string */
-      if (strcasecmp(address, expected_address[i]) == 0) result = STATE_OK;
-      xasprintf(&temp_buffer, "%s%s; ", temp_buffer, expected_address[i]);
+
+    /* compare to expected address */
+    if (result == STATE_OK && expected_address_cnt > 0) {
+        result = STATE_CRITICAL;
+        temp_buffer = "";
+        for (i=0; i<expected_address_cnt; i++) {
+            /* check if we get a match and prepare an error string */
+            if (strcasecmp(address, expected_address[i]) == 0) result = STATE_OK;
+            xasprintf(&temp_buffer, "%s%s; ", temp_buffer, expected_address[i]);
+        }
+        if (result == STATE_CRITICAL) {
+            /* Strip off last semicolon... */
+            temp_buffer[strlen(temp_buffer)-2] = '\0';
+            xasprintf(&msg, "%s%s%s%s%s", _("expected '"), temp_buffer, _("' but got '"), address, "'");
+        }
     }
-    if (result == STATE_CRITICAL) {
-      /* Strip off last semicolon... */
-      temp_buffer[strlen(temp_buffer)-2] = '\0';
-      xasprintf(&msg, "%s%s%s%s%s", _("expected '"), temp_buffer, _("' but got '"), address, "'");
+
+    /* check if authoritative */
+    if (result == STATE_OK && expect_authority && non_authoritative) {
+        result = STATE_CRITICAL;
+
+        if (strncmp(dns_server, "", 1)) {
+            xasprintf(&msg, "%s %s %s %s", _("server"), dns_server, _("is not authoritative for"), query_address);
+        }
+        else {
+            xasprintf(&msg, "%s %s", _("there is no authoritative server for"), query_address);
+        }
     }
-  }
-
-  /* check if authoritative */
-  if (result == STATE_OK && expect_authority && non_authoritative) {
-    result = STATE_CRITICAL;
-
-    if (strncmp(dns_server, "", 1))
-      xasprintf(&msg, "%s %s %s %s", _("server"), dns_server, _("is not authoritative for"), query_address);
-    else
-      xasprintf(&msg, "%s %s", _("there is no authoritative server for"), query_address);
-  }
-
-  /* compare query type to query found, if query type is ANY we can skip as any record is accepted*/
-  if (result == STATE_OK && strncmp(query_type, "", 1) && (strncmp(query_type, "-querytype=ANY", 15) != 0)) {
-    if (strncmp(query_type, query_found, 16) != 0) {
-      if (verbose)
-        printf( "%s %s %s %s %s\n", _("Failed query for"), query_type, _("only found"), query_found, _(", or nothing"));
-      result = STATE_CRITICAL;
-      xasprintf(&msg, "%s %s %s %s", _("query type of"), query_type, _("was not found for"), query_address);
+
+    /* compare query type to query found, if query type is ANY we can skip as any record is accepted*/
+    if (result == STATE_OK && strncmp(query_type, "", 1) && (strncmp(query_type, "-querytype=ANY", 15) != 0)) {
+        if (strncmp(query_type, query_found, 16) != 0) {
+          if (verbose) {
+              printf( "%s %s %s %s %s\n", _("Failed query for"), query_type, _("only found"), query_found, _(", or nothing"));
+          }
+          result = STATE_CRITICAL;
+          xasprintf(&msg, "%s %s %s %s", _("query type of"), query_type, _("was not found for"), query_address);
+        }
     }
-  }
 
-  microsec = deltime (tv);
-  elapsed_time = (double)microsec / 1.0e6;
+    microsec = deltime (tv);
+    elapsed_time = (double)microsec / 1.0e6;
 
-  if (result == STATE_OK) {
-    result = get_status(elapsed_time, time_thresholds);
     if (result == STATE_OK) {
-      printf ("%s %s: ", _("DNS"), _("OK"));
-    } else if (result == STATE_WARNING) {
-      printf ("%s %s: ", _("DNS"), _("WARNING"));
-    } else if (result == STATE_CRITICAL) {
-      printf ("%s %s: ", _("DNS"), _("CRITICAL"));
+        result = get_status(elapsed_time, time_thresholds);
+        if (result == STATE_OK) {
+            printf ("%s %s: ", _("DNS"), _("OK"));
+        }
+        else if (result == STATE_WARNING) {
+            printf ("%s %s: ", _("DNS"), _("WARNING"));
+        }
+        else if (result == STATE_CRITICAL) {
+            printf ("%s %s: ", _("DNS"), _("CRITICAL"));
+        }
+        printf (ngettext("%.3f second response time", "%.3f seconds response time", elapsed_time), elapsed_time);
+        printf (". %s %s %s", query_address, _("returns"), address);
+        if ((time_thresholds->warning != NULL) && (time_thresholds->critical != NULL)) {
+            printf ("|%s\n", fperfdata ("time", elapsed_time, "s",
+                    TRUE, time_thresholds->warning->end,
+                    TRUE, time_thresholds->critical->end,
+                    TRUE, 0, FALSE, 0));
+        }
+        else if ((time_thresholds->warning == NULL) && (time_thresholds->critical != NULL)) {
+            printf ("|%s\n", fperfdata ("time", elapsed_time, "s",
+                    FALSE, 0,
+                    TRUE, time_thresholds->critical->end,
+                    TRUE, 0, FALSE, 0));
+        }
+        else if ((time_thresholds->warning != NULL) && (time_thresholds->critical == NULL)) {
+            printf ("|%s\n", fperfdata ("time", elapsed_time, "s",
+                    TRUE, time_thresholds->warning->end,
+                    FALSE, 0,
+                    TRUE, 0, FALSE, 0));
+        }
+        else {
+          printf ("|%s\n", fperfdata ("time", elapsed_time, "s", FALSE, 0, FALSE, 0, TRUE, 0, FALSE, 0));
+        }
+    }
+    else if (result == STATE_WARNING) {
+        printf ("%s %s\n", _("DNS WARNING -"), !strcmp (msg, "") ? _("Probably a non-existent host/domain") : msg);
+    }
+    else if (result == STATE_CRITICAL) {
+        printf ("%s %s\n", _("DNS CRITICAL -"), !strcmp (msg, "") ? _("Probably a non-existent host/domain") : msg);
+    }
+    else {
+        printf ("%s %s\n", _("DNS UNKNOWN -"), !strcmp (msg, "") ? _("Probably a non-existent host/domain") : msg);
     }
-    printf (ngettext("%.3f second response time", "%.3f seconds response time", elapsed_time), elapsed_time);
-    printf (". %s %s %s", query_address, _("returns"), address);
-    if ((time_thresholds->warning != NULL) && (time_thresholds->critical != NULL)) {
-      printf ("|%s\n", fperfdata ("time", elapsed_time, "s",
-                                  TRUE, time_thresholds->warning->end,
-                                  TRUE, time_thresholds->critical->end,
-                                  TRUE, 0, FALSE, 0));
-    } else if ((time_thresholds->warning == NULL) && (time_thresholds->critical != NULL)) {
-      printf ("|%s\n", fperfdata ("time", elapsed_time, "s",
-                                  FALSE, 0,
-                                  TRUE, time_thresholds->critical->end,
-                                  TRUE, 0, FALSE, 0));
-    } else if ((time_thresholds->warning != NULL) && (time_thresholds->critical == NULL)) {
-      printf ("|%s\n", fperfdata ("time", elapsed_time, "s",
-                                  TRUE, time_thresholds->warning->end,
-                                  FALSE, 0,
-                                  TRUE, 0, FALSE, 0));
-    } else
-      printf ("|%s\n", fperfdata ("time", elapsed_time, "s", FALSE, 0, FALSE, 0, TRUE, 0, FALSE, 0));
-  }
-  else if (result == STATE_WARNING)
-    printf ("%s %s\n", _("DNS WARNING -"), !strcmp (msg, "") ? _("Probably a non-existent host/domain") : msg);
-  else if (result == STATE_CRITICAL)
-    printf ("%s %s\n", _("DNS CRITICAL -"), !strcmp (msg, "") ? _("Probably a non-existent host/domain") : msg);
-  else
-    printf ("%s %s\n", _("DNS UNKNOWN -"), !strcmp (msg, "") ? _("Probably a non-existent host/domain") : msg);
-
-  return result;
-}
 
+    return result;
+}
 
 
 int
 error_scan (char *input_buffer)
 {
 
-  /* the DNS lookup timed out */
-  if (strstr (input_buffer, _("Note: nslookup is deprecated and may be removed from future releases.")) ||
-      strstr (input_buffer, _("Consider using the `dig' or `host' programs instead.  Run nslookup with")) ||
-      strstr (input_buffer, _("the `-sil[ent]' option to prevent this message from appearing.")))
-    return STATE_OK;
-
-  /* DNS server is not running... */
-  else if (strstr (input_buffer, "No response from server"))
-    die (STATE_CRITICAL, "%s %s\n", _("No response from DNS"), (strlen(dns_server)==0)?tmp_dns_server:dns_server);
-
-  /* Host name is valid, but server doesn't have records... */
-  else if (strstr (input_buffer, "No records") || strstr (input_buffer, "No answer"))
-    die (STATE_CRITICAL, "%s %s %s\n", _("DNS"), (strlen(dns_server)==0)?tmp_dns_server:dns_server, _("has no records"));
-
-  /* Connection was refused */
-  else if (strstr (input_buffer, "Connection refused") ||
-     strstr (input_buffer, "Couldn't find server") ||
-           strstr (input_buffer, "Refused") ||
-           (strstr (input_buffer, "** server can't find") &&
-            strstr (input_buffer, ": REFUSED")))
-    die (STATE_CRITICAL, "%s %s %s\n", _("Connection to DNS"), (strlen(dns_server)==0)?tmp_dns_server:dns_server, _("was refused"));
-
-  /* Query refused (usually by an ACL in the namserver) */
-  else if (strstr (input_buffer, "Query refused"))
-    die (STATE_CRITICAL, "%s %s\n", _("Query was refused by DNS server at"), (strlen(dns_server)==0)?tmp_dns_server:dns_server);
-
-  /* No information (e.g. nameserver IP has two PTR records) */
-  else if (strstr (input_buffer, "No information"))
-    die (STATE_CRITICAL, "%s %s\n", _("No information returned by DNS server at"), (strlen(dns_server)==0)?tmp_dns_server:dns_server);
-
-  /* Host or domain name does not exist */
-  else if (strstr (input_buffer, "Non-existent") ||
-           strstr (input_buffer, "** server can't find") ||
-     strstr (input_buffer,"NXDOMAIN"))
-    die (STATE_CRITICAL, "%s %s %s\n", _("Domain"), query_address, _("was not found by the server"));
-
-  /* Network is unreachable */
-  else if (strstr (input_buffer, "Network is unreachable"))
-    die (STATE_CRITICAL, "%s\n", _("Network is unreachable"));
-
-  /* Internal server failure */
-  else if (strstr (input_buffer, "Server failure"))
-    die (STATE_CRITICAL, "%s %s\n", _("DNS failure for"), (strlen(dns_server)==0)?tmp_dns_server:dns_server);
-
-  /* Request error or the DNS lookup timed out */
-  else if (strstr (input_buffer, "Format error") ||
-           strstr (input_buffer, "Timed out"))
-    return STATE_WARNING;
-
-  return STATE_OK;
+    /* the DNS lookup timed out */
+    if (strstr (input_buffer, _("Note: nslookup is deprecated and may be removed from future releases.")) ||
+        strstr (input_buffer, _("Consider using the `dig' or `host' programs instead.  Run nslookup with")) ||
+        strstr (input_buffer, _("the `-sil[ent]' option to prevent this message from appearing.")))
+    {
+        return STATE_OK;
+    }
+    /* DNS server is not running... */
+    else if (strstr (input_buffer, "No response from server")) {
+        die (STATE_CRITICAL, "%s %s\n", _("No response from DNS"), (strlen(dns_server)==0)?tmp_dns_server:dns_server);
+    }
+    /* Host name is valid, but server doesn't have records... */
+    else if (strstr (input_buffer, "No records") || strstr (input_buffer, "No answer")) {
+        die (STATE_CRITICAL, "%s %s %s\n", _("DNS"), (strlen(dns_server)==0)?tmp_dns_server:dns_server, _("has no records"));
+    }
+    /* Connection was refused */
+    else if (strstr (input_buffer, "Connection refused") ||
+             strstr (input_buffer, "Couldn't find server") ||
+             strstr (input_buffer, "Refused") ||
+             (strstr (input_buffer, "** server can't find") &&
+              strstr (input_buffer, ": REFUSED")))
+    {
+        die (STATE_CRITICAL, "%s %s %s\n", _("Connection to DNS"), (strlen(dns_server)==0)?tmp_dns_server:dns_server, _("was refused"));
+    }
+    /* Query refused (usually by an ACL in the namserver) */
+    else if (strstr (input_buffer, "Query refused")) {
+        die (STATE_CRITICAL, "%s %s\n", _("Query was refused by DNS server at"), (strlen(dns_server)==0)?tmp_dns_server:dns_server);
+    }
+    /* No information (e.g. nameserver IP has two PTR records) */
+    else if (strstr (input_buffer, "No information")) {
+        die (STATE_CRITICAL, "%s %s\n", _("No information returned by DNS server at"), (strlen(dns_server)==0)?tmp_dns_server:dns_server);
+    }
+    /* Host or domain name does not exist */
+    else if (strstr (input_buffer, "Non-existent") ||
+             strstr (input_buffer, "** server can't find") ||
+             strstr (input_buffer,"NXDOMAIN"))
+    {
+        die (STATE_CRITICAL, "%s %s %s\n", _("Domain"), query_address, _("was not found by the server"));
+    }
 
+    /* Network is unreachable */
+    else if (strstr (input_buffer, "Network is unreachable")) {
+        die (STATE_CRITICAL, "%s\n", _("Network is unreachable"));
+    }
+    /* Internal server failure */
+    else if (strstr (input_buffer, "Server failure")) {
+        die (STATE_CRITICAL, "%s %s\n", _("DNS failure for"), (strlen(dns_server)==0)?tmp_dns_server:dns_server);
+    }
+    /* Request error or the DNS lookup timed out */
+    else if (strstr (input_buffer, "Format error") ||
+             strstr (input_buffer, "Timed out"))
+    {
+        return STATE_WARNING;
+    }
+    return STATE_OK;
 }
 
+
 /* process command-line arguments */
 int
 process_arguments (int argc, char **argv)
 {
-  int c;
-  char *warning = NULL;
-  char *critical = NULL;
-
-  int opt_index = 0;
-  static struct option long_opts[] = {
-    {"help", no_argument, 0, 'h'},
-    {"version", no_argument, 0, 'V'},
-    {"verbose", no_argument, 0, 'v'},
-    {"timeout", required_argument, 0, 't'},
-    {"hostname", required_argument, 0, 'H'},
-    {"server", required_argument, 0, 's'},
-    {"reverse-server", required_argument, 0, 'r'},
-    {"querytype", required_argument, 0, 'q'},
-    {"expected-address", required_argument, 0, 'a'},
-    {"expect-authority", no_argument, 0, 'A'},
-    {"accept-cname", no_argument, 0, 'n'},
-    {"warning", required_argument, 0, 'w'},
-    {"critical", required_argument, 0, 'c'},
-    {0, 0, 0, 0}
-  };
-
-  if (argc < 2)
-    return ERROR;
-
-  for (c = 1; c < argc; c++)
-    if (strcmp ("-to", argv[c]) == 0)
-      strcpy (argv[c], "-t");
-
-  while (1) {
-    c = getopt_long (argc, argv, "hVvAnt:H:s:r:a:q:w:c:", long_opts, &opt_index);
-
-    if (c == -1 || c == EOF)
-      break;
-
-    switch (c) {
-    case 'h': /* help */
-      print_help ();
-      exit (STATE_OK);
-    case 'V': /* version */
-      print_revision (progname, NP_VERSION);
-      exit (STATE_OK);
-    case 'v': /* version */
-      verbose = TRUE;
-      break;
-    case 't': /* timeout period */
-      timeout_interval = parse_timeout_string (optarg);
-      break;
-    case 'H': /* hostname */
-      if (strlen (optarg) >= ADDRESS_LENGTH)
-        die (STATE_UNKNOWN, "%s\n", _("Input buffer overflow"));
-      strcpy (query_address, optarg);
-      break;
-    case 's': /* server name */
-      /* TODO: this host_or_die check is probably unnecessary.
-       * Better to confirm nslookup response matches */
-      host_or_die(optarg);
-      if (strlen (optarg) >= ADDRESS_LENGTH)
-        die (STATE_UNKNOWN, "%s\n", _("Input buffer overflow"));
-      strcpy (dns_server, optarg);
-      break;
-    case 'r': /* reverse server name */
-      /* TODO: Is this host_or_die necessary? */
-      host_or_die(optarg);
-      if (strlen (optarg) >= ADDRESS_LENGTH)
-        die (STATE_UNKNOWN, "%s\n", _("Input buffer overflow"));
-      strcpy (ptr_server, optarg);
-      break;
-    case 'a': /* expected address */
-      if (strlen (optarg) >= ADDRESS_LENGTH)
-        die (STATE_UNKNOWN, "%s\n", _("Input buffer overflow"));
-      expected_address = (char **)realloc(expected_address, (expected_address_cnt+1) * sizeof(char*));
-      expected_address[expected_address_cnt] = strdup(optarg);
-      expected_address_cnt++;
-      break;
-    case 'q': /* querytype -- A or AAAA or ANY or SRV or TXT, etc. */
-      if (strlen (optarg) < 1 || strlen (optarg) > 5)
-        die (STATE_UNKNOWN, "%s\n", _("Missing valid querytype parameter.  Try using 'A' or 'AAAA' or 'SRV'"));
-      strntoupper(optarg, strlen(optarg));
-      strcpy(query_type, "-querytype=");
-      strcat(query_type, optarg);
-      query_set = TRUE;
-      /* logic is set such that we must accept cnames if they are querying for them */
-      if (strcmp(query_type, "-querytype=CNAME") != 0)
-        break;
-    case 'n': /* accept cname responses as a result */
-      accept_cname = TRUE;
-      break;
-    case 'A': /* expect authority */
-      expect_authority = TRUE;
-      break;
-    case 'w':
-      warning = optarg;
-      break;
-    case 'c':
-      critical = optarg;
-      break;
-    default: /* args not parsable */
-      usage5();
+    int c;
+    char *warning = NULL;
+    char *critical = NULL;
+
+    int opt_index = 0;
+    static struct option long_opts[] = {
+        {"help", no_argument, 0, 'h'},
+        {"version", no_argument, 0, 'V'},
+        {"verbose", no_argument, 0, 'v'},
+        {"timeout", required_argument, 0, 't'},
+        {"hostname", required_argument, 0, 'H'},
+        {"server", required_argument, 0, 's'},
+        {"reverse-server", required_argument, 0, 'r'},
+        {"querytype", required_argument, 0, 'q'},
+        {"expected-address", required_argument, 0, 'a'},
+        {"expect-authority", no_argument, 0, 'A'},
+        {"accept-cname", no_argument, 0, 'n'},
+        {"warning", required_argument, 0, 'w'},
+        {"critical", required_argument, 0, 'c'},
+        {0, 0, 0, 0}
+    };
+
+    if (argc < 2) {
+        return ERROR;
     }
-  }
 
-  set_thresholds(&time_thresholds, warning, critical);
+    for (c = 1; c < argc; c++) {
+        if (strcmp ("-to", argv[c]) == 0) {
+            strcpy (argv[c], "-t");
+        }
+    }
 
-  return validate_arguments ();
+    while (1) {
+        c = getopt_long (argc, argv, "hVvAnt:H:s:r:a:q:w:c:", long_opts, &opt_index);
+
+        if (c == -1 || c == EOF) {
+            break;
+        }
+
+        switch (c) {
+        /* help */
+        case 'h':
+            print_help ();
+            exit (STATE_OK);
+       /* version */
+        case 'V':
+            print_revision (progname, NP_VERSION);
+            exit (STATE_OK);
+        /* verbose */
+        case 'v':
+            verbose = TRUE;
+            break;
+        /* timeout period */
+        case 't':
+            timeout_interval = parse_timeout_string (optarg);
+            break;
+        /* hostname */
+        case 'H':
+            if (strlen (optarg) >= ADDRESS_LENGTH) {
+                die (STATE_UNKNOWN, "%s\n", _("Input buffer overflow"));
+            }
+            strcpy (query_address, optarg);
+            break;
+        /* server name */
+        case 's':
+            /* TODO: this host_or_die check is probably unnecessary.
+            * Better to confirm nslookup response matches */
+            host_or_die(optarg);
+            if (strlen (optarg) >= ADDRESS_LENGTH) {
+                die (STATE_UNKNOWN, "%s\n", _("Input buffer overflow"));
+            }
+            strcpy (dns_server, optarg);
+            break;
+        /* reverse server name */
+        case 'r':
+            /* TODO: Is this host_or_die necessary? */
+            host_or_die(optarg);
+            if (strlen (optarg) >= ADDRESS_LENGTH) {
+                die (STATE_UNKNOWN, "%s\n", _("Input buffer overflow"));
+            }
+            strcpy (ptr_server, optarg);
+            break;
+        /* expected address */
+        case 'a':
+            if (strlen (optarg) >= ADDRESS_LENGTH) {
+                die (STATE_UNKNOWN, "%s\n", _("Input buffer overflow"));
+            }
+            expected_address = (char **)realloc(expected_address, (expected_address_cnt+1) * sizeof(char*));
+            expected_address[expected_address_cnt] = strdup(optarg);
+            expected_address_cnt++;
+            break;
+        /* querytype -- A or AAAA or ANY or SRV or TXT, etc. */
+        case 'q':
+            if (strlen (optarg) < 1 || strlen (optarg) > 5) {
+                die (STATE_UNKNOWN, "%s\n", _("Missing valid querytype parameter.  Try using 'A' or 'AAAA' or 'SRV' or 'ANY'"));
+            }
+            strntoupper(optarg, strlen(optarg));
+            strcpy(query_type, "-querytype=");
+            strcat(query_type, optarg);
+            query_set = TRUE;
+            /* logic is set such that we must accept cnames if they are querying for them */
+            if (strcmp(query_type, "-querytype=CNAME") != 0) {
+                break;
+            }
+        /* accept cname responses as a result */
+        case 'n':
+            accept_cname = TRUE;
+            break;
+        /* expect authority */
+        case 'A':
+            expect_authority = TRUE;
+            break;
+        case 'w':
+            warning = optarg;
+            break;
+        case 'c':
+            critical = optarg;
+            break;
+        /* args not parsable */
+        default:
+            usage5();
+        }
+    }
+
+    set_thresholds(&time_thresholds, warning, critical);
+
+    return validate_arguments ();
 }
 
 
 int
 validate_arguments ()
 {
-  if (query_address[0] == 0)
-    return ERROR;
+    if (query_address[0] == 0) {
+        return ERROR;
+    }
+
+    /* Bind 9.11.x onwards performs a query for both A and AAAA records */
+    /* The previous default behavior of nslookup was just A records. */
+    /* To ensure that exisitng users of this plugin do not get incorrect results */
+    /* set the querytype to A if it has not already been specified. */
+    /* If an end user wants both A and AAAA then they need to use ANY. */
+    if (strcmp(query_type, "") == 0) {
+        /*query_type = "-querytype=A";*/
+        strcpy(query_type, "-querytype=");
+        strcat(query_type, "A");
+        query_set = TRUE;
+    }
 
-  return OK;
+    return OK;
 }
 
 
 void
 print_help (void)
 {
-  print_revision (progname, NP_VERSION);
-
-  printf ("%s\n", "Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>");
-  printf (COPYRIGHT, copyright, email);
-
-  printf ("%s\n", _("This plugin uses the nslookup program to obtain the IP address for the given host/domain query."));
-  printf ("%s\n", _("An optional DNS server to use may be specified."));
-  printf ("%s\n", _("If no DNS server is specified, the default server(s) specified in /etc/resolv.conf will be used."));
-
-  printf ("\n\n");
-
-  print_usage ();
-
-  printf (UT_HELP_VRSN);
-  printf (UT_EXTRA_OPTS);
-
-  printf ("%s\n", " -H, --hostname=HOST");
-  printf ("    %s\n", _("The name or address you want to query"));
-  printf ("%s\n", " -s, --server=HOST");
-  printf ("    %s\n", _("Optional DNS server you want to use for the lookup"));
-  printf ("%s\n", " -q, --querytype=TYPE");
-  printf ("    %s\n", _("Optional DNS record query type where TYPE =(A, AAAA, SRV, TXT, MX, ANY)"));
-  printf ("    %s\n", _("The default query type is 'A' (IPv4 host entry)"));
-  printf ("%s\n", " -a, --expected-address=IP-ADDRESS|HOST");
-  printf ("    %s\n", _("Optional IP-ADDRESS you expect the DNS server to return. HOST must end with"));
-  printf ("    %s\n", _("a dot (.). This option can be repeated multiple times (Returns OK if any"));
-  printf ("    %s\n", _("value match). If multiple addresses are returned at once, you have to match"));
-  printf ("    %s\n", _("the whole string of addresses separated with commas (sorted alphabetically)."));
-  printf ("    %s\n", _("If you would like to test for the presence of a cname, combine with -n param."));
-  printf ("%s\n", " -A, --expect-authority");
-  printf ("    %s\n", _("Optionally expect the DNS server to be authoritative for the lookup"));
-  printf ("%s\n", " -n, --accept-cname");
-  printf ("    %s\n", _("Optionally accept cname responses as a valid result to a query"));
-  printf ("    %s\n", _("The default is to ignore cname responses as part of the result"));
-  printf ("%s\n", " -w, --warning=seconds");
-  printf ("    %s\n", _("Return warning if elapsed time exceeds value. Default off"));
-  printf ("%s\n", " -c, --critical=seconds");
-  printf ("    %s\n", _("Return critical if elapsed time exceeds value. Default off"));
-
-  printf (UT_CONN_TIMEOUT, DEFAULT_SOCKET_TIMEOUT);
-
-  printf (UT_SUPPORT);
+    print_revision (progname, NP_VERSION);
+
+    printf ("%s\n", "Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>");
+    printf (COPYRIGHT, copyright, email);
+
+    printf ("%s\n", _("This plugin uses the nslookup program to obtain the IP address for the given host/domain query."));
+    printf ("%s\n", _("An optional DNS server to use may be specified."));
+    printf ("%s\n", _("If no DNS server is specified, the default server(s) specified in /etc/resolv.conf will be used."));
+
+    printf ("\n\n");
+
+    print_usage ();
+
+    printf (UT_HELP_VRSN);
+    printf (UT_EXTRA_OPTS);
+
+    printf ("%s\n", " -H, --hostname=HOST");
+    printf ("    %s\n", _("The name or address you want to query"));
+    printf ("%s\n", " -s, --server=HOST");
+    printf ("    %s\n", _("Optional DNS server you want to use for the lookup"));
+    printf ("%s\n", " -q, --querytype=TYPE");
+    printf ("    %s\n", _("Optional DNS record query type where TYPE =(A, AAAA, SRV, TXT, MX, ANY)"));
+    printf ("    %s\n", _("The default query type is 'A' (IPv4 host entry)"));
+    printf ("    %s\n", _("BIND 9.11.x onwards supports both 'A' and 'AAAA', if you want both use 'ANY'"));
+    printf ("%s\n", " -a, --expected-address=IP-ADDRESS|HOST");
+    printf ("    %s\n", _("Optional IP-ADDRESS you expect the DNS server to return. HOST must end with"));
+    printf ("    %s\n", _("a dot (.). This option can be repeated multiple times (Returns OK if any"));
+    printf ("    %s\n", _("value match). If multiple addresses are returned at once, you have to match"));
+    printf ("    %s\n", _("the whole string of addresses separated with commas (sorted alphabetically)."));
+    printf ("    %s\n", _("If you would like to test for the presence of a cname, combine with -n param."));
+    printf ("%s\n", " -A, --expect-authority");
+    printf ("    %s\n", _("Optionally expect the DNS server to be authoritative for the lookup"));
+    printf ("%s\n", " -n, --accept-cname");
+    printf ("    %s\n", _("Optionally accept cname responses as a valid result to a query"));
+    printf ("    %s\n", _("The default is to ignore cname responses as part of the result"));
+    printf ("%s\n", " -w, --warning=seconds");
+    printf ("    %s\n", _("Return warning if elapsed time exceeds value. Default off"));
+    printf ("%s\n", " -c, --critical=seconds");
+    printf ("    %s\n", _("Return critical if elapsed time exceeds value. Default off"));
+
+    printf (UT_CONN_TIMEOUT, DEFAULT_SOCKET_TIMEOUT);
+
+    printf (UT_SUPPORT);
 }
 
 
 void
 print_usage (void)
 {
-  printf ("%s\n", _("Usage:"));
-  printf ("%s %s\n", progname, "-H host [-s server] [-q type ] [-a expected-address] [-A] [-n] [-t timeout] [-w warn] [-c crit]");
+    printf ("%s\n", _("Usage:"));
+    printf ("%s %s\n", progname, "-H host [-s server] [-q type ] [-a expected-address] [-A] [-n] [-t timeout] [-w warn] [-c crit]");
 }