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@@ -23,7 +23,7 @@
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const char *progname = "check_dns";
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const char *progname = "check_dns";
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const char *revision = "$Revision$";
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const char *revision = "$Revision$";
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-const char *copyright = "2000-2004";
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+const char *copyright = "2000-2005";
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const char *email = "nagiosplug-devel@lists.sourceforge.net";
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const char *email = "nagiosplug-devel@lists.sourceforge.net";
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#include "common.h"
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#include "common.h"
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@@ -49,156 +49,156 @@ int expect_authority = FALSE;
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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;
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- char *msg = NULL;
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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 multi_address;
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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, popen_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 (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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- /* get the command to run */
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- asprintf (&command_line, "%s %s %s", NSLOOKUP_COMMAND, 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 = (char *)_("nslookup returned 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 (verbose)
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- puts(chld_out.line[i]);
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-
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- if (strstr (chld_out.line[i], ".in-addr.arpa")) {
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- if ((temp_buffer = strstr (chld_out.line[i], "name = ")))
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- address = strdup (temp_buffer + 7);
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- else {
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- msg = (char *)_("Warning plugin error");
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- result = STATE_WARNING;
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- }
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- }
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-
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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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- else if (parse_address == TRUE && (strstr (chld_out.line[i], "Address:") ||
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- strstr (chld_out.line[i], "Addresses:"))) {
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- temp_buffer = index (chld_out.line[i], ':');
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- temp_buffer++;
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-
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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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-
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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,
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- _("DNS CRITICAL - '%s' returned empty host name string\n"),
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- NSLOOKUP_COMMAND);
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- }
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-
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- if (address == NULL)
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- address = strdup (temp_buffer);
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- else
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- asprintf(&address, "%s,%s", address, temp_buffer);
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- }
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-
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- else if (strstr (chld_out.line[i], _("Non-authoritative answer:"))) {
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- non_authoritative = TRUE;
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- }
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-
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- result = error_scan (chld_out.line[i]);
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- if (result != STATE_OK) {
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- msg = strchr (chld_out.line[i], ':');
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- if(msg) msg++;
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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++) {
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- if (verbose)
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- puts(chld_err.line[i]);
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-
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- if (error_scan (chld_err.line[i]) != STATE_OK) {
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- result = max_state (result, error_scan (chld_err.line[i]));
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- msg = strchr(input_buffer, ':');
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- if(msg) msg++;
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- }
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- }
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-
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- /* If we got here, we should have an address string,
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- * and we can segfault if we do not */
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- if (address==NULL || strlen(address)==0)
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- die (STATE_CRITICAL,
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- _("DNS CRITICAL - '%s' msg parsing exited with no address\n"),
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- NSLOOKUP_COMMAND);
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-
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- /* compare to expected address */
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- if (result == STATE_OK && match_expected_address && strcmp(address, expected_address)) {
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- result = STATE_CRITICAL;
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- asprintf(&msg, _("expected %s but got %s"), expected_address, address);
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- }
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-
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- /* check if authoritative */
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- if (result == STATE_OK && expect_authority && non_authoritative) {
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- result = STATE_CRITICAL;
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- asprintf(&msg, _("server %s is not authoritative for %s"), dns_server, query_address);
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- }
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-
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- microsec = deltime (tv);
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- elapsed_time = (double)microsec / 1.0e6;
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-
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- if (result == STATE_OK) {
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- if (strchr (address, ',') == NULL)
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- multi_address = FALSE;
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- else
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- multi_address = TRUE;
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-
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- printf ("DNS %s: ", _("OK"));
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- printf (ngettext("%.3f second response time", "%.3f seconds response time", elapsed_time), elapsed_time);
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- printf (_(". %s returns %s"), query_address, address);
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- printf ("|%s\n", fperfdata ("time", elapsed_time, "s", FALSE, 0, FALSE, 0, TRUE, 0, FALSE, 0));
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- }
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- else if (result == STATE_WARNING)
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- printf (_("DNS WARNING - %s\n"),
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- !strcmp (msg, "") ? _(" Probably a non-existent host/domain") : msg);
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- else if (result == STATE_CRITICAL)
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- printf (_("DNS CRITICAL - %s\n"),
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- !strcmp (msg, "") ? _(" Probably a non-existent host/domain") : msg);
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- else
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- printf (_("DNS UNKNOW - %s\n"),
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- !strcmp (msg, "") ? _(" Probably a non-existent host/domain") : msg);
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-
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- return result;
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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;
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+ char *msg = NULL;
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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 multi_address;
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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, popen_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 (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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+ /* get the command to run */
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+ asprintf (&command_line, "%s %s %s", NSLOOKUP_COMMAND, 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 = (char *)_("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 (verbose)
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+ puts(chld_out.line[i]);
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+
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+ if (strstr (chld_out.line[i], ".in-addr.arpa")) {
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+ if ((temp_buffer = strstr (chld_out.line[i], "name = ")))
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+ address = strdup (temp_buffer + 7);
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+ else {
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+ msg = (char *)_("Warning plugin error");
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+ result = STATE_WARNING;
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+ }
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+ }
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+
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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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+ else if (parse_address == TRUE && (strstr (chld_out.line[i], "Address:") ||
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+ strstr (chld_out.line[i], "Addresses:"))) {
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+ temp_buffer = index (chld_out.line[i], ':');
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+ temp_buffer++;
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+
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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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+
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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,
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+ _("DNS CRITICAL - '%s' returned empty host name string\n"),
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+ NSLOOKUP_COMMAND);
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+ }
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+
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+ if (address == NULL)
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+ address = strdup (temp_buffer);
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+ else
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+ asprintf(&address, "%s,%s", address, temp_buffer);
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+ }
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+
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+ else if (strstr (chld_out.line[i], _("Non-authoritative answer:"))) {
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+ non_authoritative = TRUE;
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+ }
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+
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+ result = error_scan (chld_out.line[i]);
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+ if (result != STATE_OK) {
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+ msg = strchr (chld_out.line[i], ':');
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+ if(msg) msg++;
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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++) {
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+ if (verbose)
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+ puts(chld_err.line[i]);
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+
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+ if (error_scan (chld_err.line[i]) != STATE_OK) {
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+ result = max_state (result, error_scan (chld_err.line[i]));
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+ msg = strchr(input_buffer, ':');
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+ if(msg) msg++;
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+ }
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+ }
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+
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+ /* If we got here, we should have an address string,
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+ * and we can segfault if we do not */
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+ if (address==NULL || strlen(address)==0)
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+ die (STATE_CRITICAL,
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+ _("DNS CRITICAL - '%s' msg parsing exited with no address\n"),
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+ NSLOOKUP_COMMAND);
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+
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+ /* compare to expected address */
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+ if (result == STATE_OK && match_expected_address && strcmp(address, expected_address)) {
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+ result = STATE_CRITICAL;
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+ asprintf(&msg, _("expected %s but got %s"), expected_address, address);
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+ }
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+
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+ /* check if authoritative */
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+ if (result == STATE_OK && expect_authority && non_authoritative) {
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+ result = STATE_CRITICAL;
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+ asprintf(&msg, _("server %s is not authoritative for %s"), dns_server, query_address);
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+ }
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+
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+ microsec = deltime (tv);
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+ elapsed_time = (double)microsec / 1.0e6;
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+
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+ if (result == STATE_OK) {
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+ if (strchr (address, ',') == NULL)
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+ multi_address = FALSE;
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+ else
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+ multi_address = TRUE;
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+
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+ printf ("DNS %s: ", _("OK"));
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+ printf (ngettext("%.3f second response time", "%.3f seconds response time", elapsed_time), elapsed_time);
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+ printf (_(". %s returns %s"), query_address, address);
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+ printf ("|%s\n", fperfdata ("time", elapsed_time, "s", FALSE, 0, FALSE, 0, TRUE, 0, FALSE, 0));
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+ }
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+ else if (result == STATE_WARNING)
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+ printf (_("DNS WARNING - %s\n"),
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|
|
+ !strcmp (msg, "") ? _(" Probably a non-existent host/domain") : msg);
|
|
|
|
|
+ else if (result == STATE_CRITICAL)
|
|
|
|
|
+ printf (_("DNS CRITICAL - %s\n"),
|
|
|
|
|
+ !strcmp (msg, "") ? _(" Probably a non-existent host/domain") : msg);
|
|
|
|
|
+ else
|
|
|
|
|
+ printf (_("DNS UNKNOW - %s\n"),
|
|
|
|
|
+ !strcmp (msg, "") ? _(" Probably a non-existent host/domain") : msg);
|
|
|
|
|
+
|
|
|
|
|
+ return result;
|
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
@@ -207,56 +207,56 @@ 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, _("No response from DNS %s\n"), dns_server);
|
|
|
|
|
-
|
|
|
|
|
- /* Host name is valid, but server doesn't have records... */
|
|
|
|
|
- else if (strstr (input_buffer, "No records"))
|
|
|
|
|
- die (STATE_CRITICAL, _("DNS %s has no records\n"), dns_server);
|
|
|
|
|
-
|
|
|
|
|
- /* 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, _("Connection to DNS %s was refused\n"), dns_server);
|
|
|
|
|
-
|
|
|
|
|
- /* Query refused (usually by an ACL in the namserver) */
|
|
|
|
|
- else if (strstr (input_buffer, "Query refused"))
|
|
|
|
|
- die (STATE_CRITICAL, _("Query was refused by DNS server at %s\n"), dns_server);
|
|
|
|
|
-
|
|
|
|
|
- /* No information (e.g. nameserver IP has two PTR records) */
|
|
|
|
|
- else if (strstr (input_buffer, "No information"))
|
|
|
|
|
- die (STATE_CRITICAL, _("No information returned by DNS server at %s\n"), 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, _("Domain %s was not found by the server\n"), query_address);
|
|
|
|
|
-
|
|
|
|
|
- /* Network is unreachable */
|
|
|
|
|
- else if (strstr (input_buffer, "Network is unreachable"))
|
|
|
|
|
- die (STATE_CRITICAL, _("Network is unreachable\n"));
|
|
|
|
|
-
|
|
|
|
|
- /* Internal server failure */
|
|
|
|
|
- else if (strstr (input_buffer, "Server failure"))
|
|
|
|
|
- die (STATE_CRITICAL, _("DNS failure for %s\n"), 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, _("No response from DNS %s\n"), dns_server);
|
|
|
|
|
+
|
|
|
|
|
+ /* Host name is valid, but server doesn't have records... */
|
|
|
|
|
+ else if (strstr (input_buffer, "No records"))
|
|
|
|
|
+ die (STATE_CRITICAL, _("DNS %s has no records\n"), dns_server);
|
|
|
|
|
+
|
|
|
|
|
+ /* 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, _("Connection to DNS %s was refused\n"), dns_server);
|
|
|
|
|
+
|
|
|
|
|
+ /* Query refused (usually by an ACL in the namserver) */
|
|
|
|
|
+ else if (strstr (input_buffer, "Query refused"))
|
|
|
|
|
+ die (STATE_CRITICAL, _("Query was refused by DNS server at %s\n"), dns_server);
|
|
|
|
|
+
|
|
|
|
|
+ /* No information (e.g. nameserver IP has two PTR records) */
|
|
|
|
|
+ else if (strstr (input_buffer, "No information"))
|
|
|
|
|
+ die (STATE_CRITICAL, _("No information returned by DNS server at %s\n"), 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, _("Domain %s was not found by the server\n"), query_address);
|
|
|
|
|
+
|
|
|
|
|
+ /* Network is unreachable */
|
|
|
|
|
+ else if (strstr (input_buffer, "Network is unreachable"))
|
|
|
|
|
+ die (STATE_CRITICAL, _("Network is unreachable\n"));
|
|
|
|
|
+
|
|
|
|
|
+ /* Internal server failure */
|
|
|
|
|
+ else if (strstr (input_buffer, "Server failure"))
|
|
|
|
|
+ die (STATE_CRITICAL, _("DNS failure for %s\n"), 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;
|
|
|
|
|
|
|
|
}
|
|
}
|
|
|
|
|
|
|
@@ -265,148 +265,177 @@ error_scan (char *input_buffer)
|
|
|
int
|
|
int
|
|
|
process_arguments (int argc, char **argv)
|
|
process_arguments (int argc, char **argv)
|
|
|
{
|
|
{
|
|
|
- int c;
|
|
|
|
|
-
|
|
|
|
|
- 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'},
|
|
|
|
|
- {"expected-address", required_argument, 0, 'a'},
|
|
|
|
|
- {"expect-authority", no_argument, 0, 'A'},
|
|
|
|
|
- {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, "hVvAt:H:s:r:a:", 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, revision);
|
|
|
|
|
- exit (STATE_OK);
|
|
|
|
|
- case 'v': /* version */
|
|
|
|
|
- verbose = TRUE;
|
|
|
|
|
- break;
|
|
|
|
|
- case 't': /* timeout period */
|
|
|
|
|
- timeout_interval = atoi (optarg);
|
|
|
|
|
- break;
|
|
|
|
|
- case 'H': /* hostname */
|
|
|
|
|
- if (strlen (optarg) >= ADDRESS_LENGTH)
|
|
|
|
|
- die (STATE_UNKNOWN, _("Input buffer overflow\n"));
|
|
|
|
|
- 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, _("Input buffer overflow\n"));
|
|
|
|
|
- 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, _("Input buffer overflow\n"));
|
|
|
|
|
- strcpy (ptr_server, optarg);
|
|
|
|
|
- break;
|
|
|
|
|
- case 'a': /* expected address */
|
|
|
|
|
- if (strlen (optarg) >= ADDRESS_LENGTH)
|
|
|
|
|
- die (STATE_UNKNOWN, _("Input buffer overflow\n"));
|
|
|
|
|
- strcpy (expected_address, optarg);
|
|
|
|
|
- match_expected_address = TRUE;
|
|
|
|
|
- break;
|
|
|
|
|
- case 'A': /* expect authority */
|
|
|
|
|
- expect_authority = TRUE;
|
|
|
|
|
- break;
|
|
|
|
|
- default: /* args not parsable */
|
|
|
|
|
- usage_va(_("Unknown argument - %s"), optarg);
|
|
|
|
|
- }
|
|
|
|
|
- }
|
|
|
|
|
-
|
|
|
|
|
- c = optind;
|
|
|
|
|
- if (strlen(query_address)==0 && c<argc) {
|
|
|
|
|
- if (strlen(argv[c])>=ADDRESS_LENGTH)
|
|
|
|
|
- die (STATE_UNKNOWN, _("Input buffer overflow\n"));
|
|
|
|
|
- strcpy (query_address, argv[c++]);
|
|
|
|
|
- }
|
|
|
|
|
-
|
|
|
|
|
- if (strlen(dns_server)==0 && c<argc) {
|
|
|
|
|
- /* TODO: See -s option */
|
|
|
|
|
- host_or_die(argv[c]);
|
|
|
|
|
- if (strlen(argv[c]) >= ADDRESS_LENGTH)
|
|
|
|
|
- die (STATE_UNKNOWN, _("Input buffer overflow\n"));
|
|
|
|
|
- strcpy (dns_server, argv[c++]);
|
|
|
|
|
- }
|
|
|
|
|
-
|
|
|
|
|
- return validate_arguments ();
|
|
|
|
|
|
|
+ int c;
|
|
|
|
|
+
|
|
|
|
|
+ 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'},
|
|
|
|
|
+ {"expected-address", required_argument, 0, 'a'},
|
|
|
|
|
+ {"expect-authority", no_argument, 0, 'A'},
|
|
|
|
|
+ {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, "hVvAt:H:s:r:a:", 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, revision);
|
|
|
|
|
+ exit (STATE_OK);
|
|
|
|
|
+ case 'v': /* version */
|
|
|
|
|
+ verbose = TRUE;
|
|
|
|
|
+ break;
|
|
|
|
|
+ case 't': /* timeout period */
|
|
|
|
|
+ timeout_interval = atoi (optarg);
|
|
|
|
|
+ break;
|
|
|
|
|
+ case 'H': /* hostname */
|
|
|
|
|
+ if (strlen (optarg) >= ADDRESS_LENGTH)
|
|
|
|
|
+ die (STATE_UNKNOWN, _("Input buffer overflow\n"));
|
|
|
|
|
+ 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, _("Input buffer overflow\n"));
|
|
|
|
|
+ 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, _("Input buffer overflow\n"));
|
|
|
|
|
+ strcpy (ptr_server, optarg);
|
|
|
|
|
+ break;
|
|
|
|
|
+ case 'a': /* expected address */
|
|
|
|
|
+ if (strlen (optarg) >= ADDRESS_LENGTH)
|
|
|
|
|
+ die (STATE_UNKNOWN, _("Input buffer overflow\n"));
|
|
|
|
|
+ strcpy (expected_address, optarg);
|
|
|
|
|
+ match_expected_address = TRUE;
|
|
|
|
|
+ break;
|
|
|
|
|
+ case 'A': /* expect authority */
|
|
|
|
|
+ expect_authority = TRUE;
|
|
|
|
|
+ break;
|
|
|
|
|
+ default: /* args not parsable */
|
|
|
|
|
+ usage_va(_("Unknown argument - %s"), optarg);
|
|
|
|
|
+ }
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ c = optind;
|
|
|
|
|
+ if (strlen(query_address)==0 && c<argc) {
|
|
|
|
|
+ if (strlen(argv[c])>=ADDRESS_LENGTH)
|
|
|
|
|
+ die (STATE_UNKNOWN, _("Input buffer overflow\n"));
|
|
|
|
|
+ strcpy (query_address, argv[c++]);
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ if (strlen(dns_server)==0 && c<argc) {
|
|
|
|
|
+ /* TODO: See -s option */
|
|
|
|
|
+ host_or_die(argv[c]);
|
|
|
|
|
+ if (strlen(argv[c]) >= ADDRESS_LENGTH)
|
|
|
|
|
+ die (STATE_UNKNOWN, _("Input buffer overflow\n"));
|
|
|
|
|
+ strcpy (dns_server, argv[c++]);
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ return validate_arguments ();
|
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
int
|
|
int
|
|
|
validate_arguments ()
|
|
validate_arguments ()
|
|
|
{
|
|
{
|
|
|
- if (query_address[0] == 0)
|
|
|
|
|
- return ERROR;
|
|
|
|
|
|
|
+ if (query_address[0] == 0)
|
|
|
|
|
+ return ERROR;
|
|
|
|
|
|
|
|
- return OK;
|
|
|
|
|
|
|
+ return OK;
|
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
void
|
|
|
print_help (void)
|
|
print_help (void)
|
|
|
{
|
|
{
|
|
|
- print_revision (progname, revision);
|
|
|
|
|
|
|
+ print_revision (progname, revision);
|
|
|
|
|
|
|
|
- printf ("Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>\n");
|
|
|
|
|
- printf (COPYRIGHT, copyright, email);
|
|
|
|
|
|
|
+ printf ("Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>\n");
|
|
|
|
|
+ printf (COPYRIGHT, copyright, email);
|
|
|
|
|
|
|
|
- printf (_("\
|
|
|
|
|
-This plugin uses the nslookup program to obtain the IP address\n\
|
|
|
|
|
-for the given host/domain query. A optional DNS server to use may\n\
|
|
|
|
|
-be specified. If no DNS server is specified, the default server(s)\n\
|
|
|
|
|
-specified in /etc/resolv.conf will be used.\n\n"));
|
|
|
|
|
|
|
+ printf (_("This plugin uses the nslookup program to obtain the IP address for the given host/domain query."));
|
|
|
|
|
+
|
|
|
|
|
+ printf ("\n");
|
|
|
|
|
+
|
|
|
|
|
+ printf (_("An optional DNS server to use may be specified."));
|
|
|
|
|
+
|
|
|
|
|
+ printf ("\n");
|
|
|
|
|
|
|
|
- print_usage ();
|
|
|
|
|
|
|
+ printf (_("If no DNS server is specified, the default server(s)specified in /etc/resolv.conf will be used."));
|
|
|
|
|
|
|
|
- printf (_(UT_HELP_VRSN));
|
|
|
|
|
|
|
+ printf ("\n\n");
|
|
|
|
|
|
|
|
- printf (_("\
|
|
|
|
|
--H, --hostname=HOST\n\
|
|
|
|
|
- The name or address you want to query\n\
|
|
|
|
|
--s, --server=HOST\n\
|
|
|
|
|
- Optional DNS server you want to use for the lookup\n\
|
|
|
|
|
--a, --expected-address=IP-ADDRESS\n\
|
|
|
|
|
- Optional IP address you expect the DNS server to return\n\
|
|
|
|
|
--A, --expect-authority\n\
|
|
|
|
|
- Optionally expect the DNS server to be authoritative for the lookup\n"));
|
|
|
|
|
|
|
+ print_usage ();
|
|
|
|
|
|
|
|
- printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
|
|
|
|
|
|
|
+ printf (_(UT_HELP_VRSN));
|
|
|
|
|
|
|
|
- printf (_(UT_SUPPORT));
|
|
|
|
|
|
|
+ printf (" -H, --hostname=HOST");
|
|
|
|
|
+
|
|
|
|
|
+ printf ("\n");
|
|
|
|
|
+
|
|
|
|
|
+ printf (_("the name or address you want to query"));
|
|
|
|
|
+
|
|
|
|
|
+ printf ("\n");
|
|
|
|
|
+
|
|
|
|
|
+ printf (" -s, --server=HOST");
|
|
|
|
|
+
|
|
|
|
|
+ printf ("\n");
|
|
|
|
|
+
|
|
|
|
|
+ printf (_("optional DNS server you want to use for the lookup"));
|
|
|
|
|
+
|
|
|
|
|
+ printf ("\n");
|
|
|
|
|
+
|
|
|
|
|
+ printf (" -a, --expected-address=IP-ADDRESS");
|
|
|
|
|
+
|
|
|
|
|
+ printf ("\n");
|
|
|
|
|
+
|
|
|
|
|
+ printf (_("optional IP address you expect the DNS server to return"));
|
|
|
|
|
+
|
|
|
|
|
+ printf ("\n");
|
|
|
|
|
+
|
|
|
|
|
+ printf (" -A, --expect-authority");
|
|
|
|
|
+
|
|
|
|
|
+ printf ("\n");
|
|
|
|
|
+
|
|
|
|
|
+ printf (_("optionally expect the DNS server to be authoritative for the lookup"));
|
|
|
|
|
+
|
|
|
|
|
+ printf ("\n");
|
|
|
|
|
+
|
|
|
|
|
+ printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
|
|
|
|
|
+
|
|
|
|
|
+ printf (_(UT_SUPPORT));
|
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
void
|
|
|
print_usage (void)
|
|
print_usage (void)
|
|
|
{
|
|
{
|
|
|
- printf ("\
|
|
|
|
|
-Usage: %s -H host [-s server] [-a expected-address] [-A] [-t timeout]\n", progname);
|
|
|
|
|
|
|
+ printf (_("Usage:"));
|
|
|
|
|
+
|
|
|
|
|
+ printf ("%s -H host [-s server] [-a expected-address] [-A] [-t timeout]\n", progname);
|
|
|
}
|
|
}
|