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@@ -3,7 +3,7 @@
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* Nagios check_dns plugin
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* Nagios check_dns plugin
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*
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*
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* License: GPL
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* License: GPL
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-* Copyright (c) 2000-2014 Nagios Plugins Development Team
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+* Copyright (c) 2000-2018 Nagios Plugins Development Team
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*
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*
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* Description:
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* Description:
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*
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*
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@@ -29,14 +29,16 @@
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*
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*
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*****************************************************************************/
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*****************************************************************************/
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#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)) { \
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#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)) { \
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- if (verbose) printf(verb_str); \
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+ if (verbose) { \
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+ printf(verb_str); \
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+ } \
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temp_buffer = rindex (chld_out.line[i], comp_str); \
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temp_buffer = rindex (chld_out.line[i], comp_str); \
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addresses[n_addresses++] = check_new_address(temp_buffer); \
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addresses[n_addresses++] = check_new_address(temp_buffer); \
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memset(query_found, '\0', sizeof(query_found)); \
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memset(query_found, '\0', sizeof(query_found)); \
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strncpy(query_found, querytype, sizeof(query_found));
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strncpy(query_found, querytype, sizeof(query_found));
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const char *progname = "check_dns";
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const char *progname = "check_dns";
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-const char *copyright = "2000-2014";
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+const char *copyright = "2000-2018";
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const char *email = "devel@nagios-plugins.org";
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const char *email = "devel@nagios-plugins.org";
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#include "common.h"
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#include "common.h"
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@@ -66,532 +68,628 @@ int expect_authority = FALSE;
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int accept_cname = FALSE;
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int accept_cname = FALSE;
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thresholds *time_thresholds = NULL;
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thresholds *time_thresholds = NULL;
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+
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static int
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static int
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qstrcmp(const void *p1, const void *p2)
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qstrcmp(const void *p1, const void *p2)
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{
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{
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- /* The actual arguments to this function are "pointers to
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- pointers to char", but strcmp() arguments are "pointers
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- to char", hence the following cast plus dereference */
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- return strcmp(* (char * const *) p1, * (char * const *) p2);
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+ /* The actual arguments to this function are "pointers to
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+ pointers to char", but strcmp() arguments are "pointers
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+ to char", hence the following cast plus dereference */
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+ return strcmp(* (char * const *) p1, * (char * const *) p2);
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}
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}
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+
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char *
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char *
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check_new_address(char *temp_buffer)
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check_new_address(char *temp_buffer)
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{
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{
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- temp_buffer++;
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- /* Strip leading spaces */
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- for (; *temp_buffer != '\0' && *temp_buffer == ' '; temp_buffer++)
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+ temp_buffer++;
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+ /* Strip leading spaces */
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+ for (; *temp_buffer != '\0' && *temp_buffer == ' '; temp_buffer++) {
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/* NOOP */;
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/* NOOP */;
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+ }
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- strip(temp_buffer);
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- if (temp_buffer==NULL || strlen(temp_buffer)==0)
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+ strip(temp_buffer);
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+ if (temp_buffer==NULL || strlen(temp_buffer)==0) {
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die (STATE_CRITICAL, "%s%s%s\n", _("DNS CRITICAL - '"), NSLOOKUP_COMMAND, _("' returned empty host name string"));
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die (STATE_CRITICAL, "%s%s%s\n", _("DNS CRITICAL - '"), NSLOOKUP_COMMAND, _("' returned empty host name string"));
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+ }
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- return temp_buffer;
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+ return temp_buffer;
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}
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}
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+
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int
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int
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main (int argc, char **argv)
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main (int argc, char **argv)
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{
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{
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- char *command_line = NULL;
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- char input_buffer[MAX_INPUT_BUFFER];
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- char *address = NULL; /* comma seperated str with addrs/ptrs (sorted) */
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- char **addresses = NULL;
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- int n_addresses = 0;
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- char *msg = NULL;
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- char query_found[24] = "";
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- int query_size = 24;
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- char *temp_buffer = NULL;
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- int non_authoritative = FALSE;
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- int result = STATE_UNKNOWN;
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- double elapsed_time;
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- long microsec;
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- struct timeval tv;
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- int parse_address = FALSE; /* This flag scans for Address: but only after Name: */
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- output chld_out, chld_err;
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- size_t i;
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-
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- setlocale (LC_ALL, "");
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- bindtextdomain (PACKAGE, LOCALEDIR);
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- textdomain (PACKAGE);
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-
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- /* Set signal handling and alarm */
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- if (signal (SIGALRM, runcmd_timeout_alarm_handler) == SIG_ERR)
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- usage_va(_("Cannot catch SIGALRM"));
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-
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- /* Parse extra opts if any */
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- argv=np_extra_opts (&argc, argv, progname);
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-
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- if (process_arguments (argc, argv) == ERROR)
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- usage_va(_("Could not parse arguments"));
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-
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- /* get the command to run */
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- xasprintf (&command_line, "%s %s %s %s", NSLOOKUP_COMMAND, query_type, query_address, dns_server);
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-
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- alarm (timeout_interval);
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- gettimeofday (&tv, NULL);
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-
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- if (verbose)
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- printf ("%s\n", command_line);
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-
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- /* run the command */
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- if((np_runcmd(command_line, &chld_out, &chld_err, 0)) != 0) {
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- msg = strdup(_("nslookup returned an error status"));
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- result = STATE_WARNING;
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- }
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-
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- /* scan stdout */
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- for(i = 0; i < chld_out.lines; i++) {
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- if (addresses == NULL)
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- addresses = malloc(sizeof(*addresses)*10);
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- else if (!(n_addresses % 10))
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- addresses = realloc(addresses,sizeof(*addresses) * (n_addresses + 10));
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-
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- if (verbose)
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- puts(chld_out.line[i]);
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-
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- /* bug ID: 2946553 - Older versions of bind will use all available dns
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- + servers, we have to match the one specified */
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- if (strlen(dns_server) > 0 && strstr(chld_out.line[i], "Server:")) {
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- temp_buffer = strchr(chld_out.line[i], ':');
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- temp_buffer++;
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-
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- if (temp_buffer > (char *)1) {
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- /* Strip leading tabs */
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- for (; *temp_buffer != '\0' && *temp_buffer == '\t'; temp_buffer++)
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- /* NOOP */;
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-
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- strip(temp_buffer);
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- if (temp_buffer==NULL || strlen(temp_buffer)==0)
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- die (STATE_CRITICAL, "%s%s%s\n", _("DNS CRITICAL - '"), NSLOOKUP_COMMAND, _("' returned empty server string"));
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-
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- if (strcmp(temp_buffer, dns_server) != 0)
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- die (STATE_CRITICAL, "%s %s\n", _("DNS CRITICAL - No response from DNS server:"), dns_server);
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- }
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- }
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- /* Provide the server name\ip to error_scan when not using -s */
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- else if (strlen(tmp_dns_server) == 0) {
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- temp_buffer = strchr(chld_out.line[i], ':');
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- temp_buffer++;
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- if (temp_buffer > (char *)1) {
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- /* Strip leading tabs */
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- for (; *temp_buffer != '\0' && *temp_buffer == '\t'; temp_buffer++)
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- /* NOOP */;
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-
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- strip(temp_buffer);
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- strncpy(tmp_dns_server, temp_buffer, ADDRESS_LENGTH);
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- }
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+ char *command_line = NULL;
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+ char input_buffer[MAX_INPUT_BUFFER];
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+ char *address = NULL; /* comma separated str with addrs/ptrs (sorted) */
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+ char **addresses = NULL;
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+ int n_addresses = 0;
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+ char *msg = NULL;
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+ char query_found[24] = "";
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+ int query_size = 24;
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+ char *temp_buffer = NULL;
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+ int non_authoritative = FALSE;
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+ int result = STATE_UNKNOWN;
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+ double elapsed_time;
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+ long microsec;
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+ struct timeval tv;
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+ int parse_address = FALSE; /* This flag scans for Address: but only after Name: */
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+ output chld_out, chld_err;
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+ size_t i;
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+
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+ setlocale (LC_ALL, "");
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+ bindtextdomain (PACKAGE, LOCALEDIR);
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+ textdomain (PACKAGE);
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+
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+ /* Set signal handling and alarm */
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+ if (signal (SIGALRM, runcmd_timeout_alarm_handler) == SIG_ERR) {
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+ usage_va(_("Cannot catch SIGALRM"));
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}
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}
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- if (strstr (chld_out.line[i], "Authoritative answers can be found from:"))
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- break;
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- /* the server is responding, we just got the host name...*/
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- if (strstr (chld_out.line[i], "Name:"))
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- parse_address = TRUE;
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- /* begin handling types of records */
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- IF_RECORD("AAAA address", "-querytype=AAAA", "Found AAAA record\n", ' ') }
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- else IF_RECORD("exchanger =", "-querytype=MX", "Found MX record\n", '=') }
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- else IF_RECORD("service =", "-querytype=SRV", "Found SRV record\n", ' ') }
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- else IF_RECORD("nameserver =", "-querytype=NS", "Found NS record\n", ' ') }
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- else IF_RECORD("dname =", "-querytype=DNAME", "Found DNAME record\n", ' ') }
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- else IF_RECORD("protocol =", "-querytype=WKS", "Found WKS record\n", ' ') }
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- else if (strstr (chld_out.line[i], "text =") && (strncmp(query_type, "-querytype=TXT", query_size) == 0 || strncmp(query_type, "-querytype=ANY", query_size) == 0)) {
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- if (verbose) printf("Found TXT record\n");
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- temp_buffer = index(chld_out.line[i], '"');
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- --temp_buffer;
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- addresses[n_addresses++] = check_new_address(temp_buffer);
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- memset(query_found, '\0', sizeof(query_found));
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- strncpy(query_found, "-querytype=TXT", sizeof(query_found));
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- }
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+ /* Parse extra opts if any */
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+ argv=np_extra_opts (&argc, argv, progname);
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- /* only matching for origin records, if requested other fields could be included at a later date */
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- else IF_RECORD("origin =", "-querytype=SOA", "Found SOA record\n", ' ') }
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- /* cnames cannot use macro as we must check for accepting them separately */
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- 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)) {
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- if (verbose) printf("Found CNAME record\n");
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- temp_buffer = index (chld_out.line[i], '=');
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- addresses[n_addresses++] = check_new_address(temp_buffer);
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- strncpy(query_found, "-querytype=CNAME", sizeof(query_found));
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+ if (process_arguments (argc, argv) == ERROR) {
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+ usage_va(_("Could not parse arguments"));
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}
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}
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- /* does not need strncmp as we want A at all times unless another record match */
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- else if (parse_address == TRUE && (strstr (chld_out.line[i], "Address:") || strstr (chld_out.line[i], "Addresses:"))) {
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- if (verbose) printf("Found A record\n");
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- temp_buffer = index (chld_out.line[i], ':');
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- addresses[n_addresses++] = check_new_address(temp_buffer);
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- strncpy(query_found, "-querytype=A", sizeof(query_found));
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+
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+ /* get the command to run */
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+ xasprintf (&command_line, "%s %s %s %s", NSLOOKUP_COMMAND, query_type, query_address, dns_server);
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+
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+ alarm (timeout_interval);
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+ gettimeofday (&tv, NULL);
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+
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+ if (verbose) {
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+ printf ("%s\n", command_line);
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}
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}
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- /* must be after other records with "name" as an identifier, as ptr does not spefify */
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- else IF_RECORD("name =", "-querytype=PTR", "Found PTR record\n", ' ') }
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- /* needed for non-query ptr\reverse lookup checks */
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- else if (strstr(chld_out.line[i], ".in-addr.arpa") && !query_set) {
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- if ((temp_buffer = strstr(chld_out.line[i], "name = ")))
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- addresses[n_addresses++] = strdup(temp_buffer);
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- else {
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- xasprintf(&msg, "%s %s %s %s", _("Warning plugin error"));
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+
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+ /* run the command */
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+ if((np_runcmd(command_line, &chld_out, &chld_err, 0)) != 0) {
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+ msg = strdup(_("nslookup returned an error status"));
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result = STATE_WARNING;
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result = STATE_WARNING;
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- }
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}
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}
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- if (strstr (chld_out.line[i], _("Non-authoritative answer:")))
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- non_authoritative = TRUE;
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-
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- int tmp = error_scan(chld_out.line[i]);
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- result = (result == STATE_UNKNOWN)
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- ? tmp
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- : (result < tmp)
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- ? tmp : result;
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- if (result != STATE_OK) {
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- msg = strchr (chld_out.line[i], ':');
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- if(msg)
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- msg++;
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- else
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- msg = chld_out.line[i];
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- break;
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- }
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- }
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-
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- /* scan stderr */
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|
|
- 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 (strcmp(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) {
|
|
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
|
|
int
|
|
|
error_scan (char *input_buffer)
|
|
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 */
|
|
/* process command-line arguments */
|
|
|
int
|
|
int
|
|
|
process_arguments (int argc, char **argv)
|
|
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
|
|
int
|
|
|
validate_arguments ()
|
|
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
|
|
void
|
|
|
print_help (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
|
|
void
|
|
|
print_usage (void)
|
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print_usage (void)
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{
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{
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- printf ("%s\n", _("Usage:"));
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- printf ("%s %s\n", progname, "-H host [-s server] [-q type ] [-a expected-address] [-A] [-n] [-t timeout] [-w warn] [-c crit]");
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+ printf ("%s\n", _("Usage:"));
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+ printf ("%s %s\n", progname, "-H host [-s server] [-q type ] [-a expected-address] [-A] [-n] [-t timeout] [-w warn] [-c crit]");
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}
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}
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