X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=plugins%2Fcheck_dig.c;h=45189b000d222ce7c4ca0a7186103bafaabaddfa;hb=25d1ee331dbe4977a4a1a756c67f32bd51d9b070;hp=bc4dcd5c74f9b95a0b8add40a59c02a1c320cba1;hpb=ceebd58040b1688749d58dd76963af639cf8c803;p=nagiosplug.git diff --git a/plugins/check_dig.c b/plugins/check_dig.c index bc4dcd5..45189b0 100644 --- a/plugins/check_dig.c +++ b/plugins/check_dig.c @@ -1,21 +1,29 @@ /***************************************************************************** - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - - $Id$ - +* +* Nagios check_dig plugin +* +* License: GPL +* Copyright (c) 2002-2008 Nagios Plugins Development Team +* +* Description: +* +* This file contains the check_dig plugin +* +* +* This program is free software: you can redistribute it and/or modify +* it under the terms of the GNU General Public License as published by +* the Free Software Foundation, either version 3 of the License, or +* (at your option) any later version. +* +* This program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with this program. If not, see . +* +* *****************************************************************************/ /* Hackers note: @@ -25,8 +33,7 @@ * because on some architectures those strings are in non-writable memory */ const char *progname = "check_dig"; -const char *revision = "$Revision$"; -const char *copyright = "2002-2004"; +const char *copyright = "2002-2008"; const char *email = "nagiosplug-devel@lists.sourceforge.net"; #include "common.h" @@ -46,6 +53,7 @@ char *query_address = NULL; char *record_type = "A"; char *expected_address = NULL; char *dns_server = NULL; +char *dig_args = ""; int verbose = FALSE; int server_port = DEFAULT_PORT; double warning_interval = UNDEFINED; @@ -55,113 +63,118 @@ struct timeval tv; int main (int argc, char **argv) { - char *command_line; - output chld_out, chld_err; - char *msg = NULL; - size_t i; - char *t; - long microsec; - double elapsed_time; - int result = STATE_UNKNOWN; - - setlocale (LC_ALL, ""); - bindtextdomain (PACKAGE, LOCALEDIR); - textdomain (PACKAGE); - - /* Set signal handling and alarm */ - if (signal (SIGALRM, popen_timeout_alarm_handler) == SIG_ERR) - usage_va(_("Cannot catch SIGALRM")); - - if (process_arguments (argc, argv) == ERROR) - usage_va(_("Could not parse arguments")); - - /* get the command to run */ - asprintf (&command_line, "%s @%s -p %d %s -t %s", - PATH_TO_DIG, dns_server, server_port, query_address, record_type); - - alarm (timeout_interval); - gettimeofday (&tv, NULL); - - if (verbose) { - printf ("%s\n", command_line); - if(expected_address != NULL) { - printf (_("Looking for: '%s'\n"), expected_address); - } else { - printf (_("Looking for: '%s'\n"), query_address); - } - } - - /* run the command */ - if(np_runcmd(command_line, &chld_out, &chld_err, 0) != 0) { - result = STATE_WARNING; - msg = (char *)_("dig returned an error status"); - } - - for(i = 0; i < chld_out.lines; i++) { - /* the server is responding, we just got the host name... */ - if (strstr (chld_out.line[i], ";; ANSWER SECTION:")) { - - /* loop through the whole 'ANSWER SECTION' */ - for(; i < chld_out.lines; i++) { - /* get the host address */ - if (verbose) - printf ("%s\n", chld_out.line[i]); - - if (strstr (chld_out.line[i], (expected_address == NULL ? query_address : expected_address)) != NULL) { - msg = chld_out.line[i]; - result = STATE_OK; - - /* Translate output TAB -> SPACE */ - t = msg; - while ((t = strchr(t, '\t')) != NULL) *t = ' '; - break; - } - } - - if (result == STATE_UNKNOWN) { - msg = (char *)_("Server not found in ANSWER SECTION"); - result = STATE_WARNING; - } - - /* we found the answer section, so break out of the loop */ - break; - } - } - - if (result == STATE_UNKNOWN) - msg = (char *)_("No ANSWER SECTION found"); - - /* If we get anything on STDERR, at least set warning */ - if(chld_err.buflen > 0) { - result = max_state(result, STATE_WARNING); - if(!msg) for(i = 0; i < chld_err.lines; i++) { - msg = strchr(chld_err.line[0], ':'); - if(msg) { - msg++; - break; - } - } - } - - microsec = deltime (tv); - elapsed_time = (double)microsec / 1.0e6; - - if (critical_interval > UNDEFINED && elapsed_time > critical_interval) - result = STATE_CRITICAL; - - else if (warning_interval > UNDEFINED && elapsed_time > warning_interval) - result = STATE_WARNING; - - printf ("DNS %s - %.3f seconds response time (%s)|%s\n", - state_text (result), elapsed_time, - msg ? msg : _("Probably a non-existent host/domain"), - fperfdata("time", elapsed_time, "s", - (warning_interval>UNDEFINED?TRUE:FALSE), - warning_interval, - (critical_interval>UNDEFINED?TRUE:FALSE), - critical_interval, - TRUE, 0, FALSE, 0)); - return result; + char *command_line; + output chld_out, chld_err; + char *msg = NULL; + size_t i; + char *t; + long microsec; + double elapsed_time; + int result = STATE_UNKNOWN; + + setlocale (LC_ALL, ""); + bindtextdomain (PACKAGE, LOCALEDIR); + textdomain (PACKAGE); + + /* Set signal handling and alarm */ + if (signal (SIGALRM, popen_timeout_alarm_handler) == SIG_ERR) + usage_va(_("Cannot catch SIGALRM")); + + /* Parse extra opts if any */ + argv=np_extra_opts (&argc, argv, progname); + + if (process_arguments (argc, argv) == ERROR) + usage_va(_("Could not parse arguments")); + + /* get the command to run */ + asprintf (&command_line, "%s @%s -p %d %s -t %s %s", + PATH_TO_DIG, dns_server, server_port, query_address, record_type, dig_args); + + alarm (timeout_interval); + gettimeofday (&tv, NULL); + + if (verbose) { + printf ("%s\n", command_line); + if(expected_address != NULL) { + printf (_("Looking for: '%s'\n"), expected_address); + } else { + printf (_("Looking for: '%s'\n"), query_address); + } + } + + /* run the command */ + if(np_runcmd(command_line, &chld_out, &chld_err, 0) != 0) { + result = STATE_WARNING; + msg = (char *)_("dig returned an error status"); + } + + for(i = 0; i < chld_out.lines; i++) { + /* the server is responding, we just got the host name... */ + if (strstr (chld_out.line[i], ";; ANSWER SECTION:")) { + + /* loop through the whole 'ANSWER SECTION' */ + for(; i < chld_out.lines; i++) { + /* get the host address */ + if (verbose) + printf ("%s\n", chld_out.line[i]); + + if (strstr (chld_out.line[i], (expected_address == NULL ? query_address : expected_address)) != NULL) { + msg = chld_out.line[i]; + result = STATE_OK; + + /* Translate output TAB -> SPACE */ + t = msg; + while ((t = strchr(t, '\t')) != NULL) *t = ' '; + break; + } + } + + if (result == STATE_UNKNOWN) { + msg = (char *)_("Server not found in ANSWER SECTION"); + result = STATE_WARNING; + } + + /* we found the answer section, so break out of the loop */ + break; + } + } + + if (result == STATE_UNKNOWN) { + msg = (char *)_("No ANSWER SECTION found"); + result = STATE_CRITICAL; + } + + /* If we get anything on STDERR, at least set warning */ + if(chld_err.buflen > 0) { + result = max_state(result, STATE_WARNING); + if(!msg) for(i = 0; i < chld_err.lines; i++) { + msg = strchr(chld_err.line[0], ':'); + if(msg) { + msg++; + break; + } + } + } + + microsec = deltime (tv); + elapsed_time = (double)microsec / 1.0e6; + + if (critical_interval > UNDEFINED && elapsed_time > critical_interval) + result = STATE_CRITICAL; + + else if (warning_interval > UNDEFINED && elapsed_time > warning_interval) + result = STATE_WARNING; + + printf ("DNS %s - %.3f seconds response time (%s)|%s\n", + state_text (result), elapsed_time, + msg ? msg : _("Probably a non-existent host/domain"), + fperfdata("time", elapsed_time, "s", + (warning_interval>UNDEFINED?TRUE:FALSE), + warning_interval, + (critical_interval>UNDEFINED?TRUE:FALSE), + critical_interval, + TRUE, 0, FALSE, 0)); + return result; } @@ -170,104 +183,109 @@ main (int argc, char **argv) int process_arguments (int argc, char **argv) { - int c; - - int option = 0; - static struct option longopts[] = { - {"hostname", required_argument, 0, 'H'}, - {"query_address", required_argument, 0, 'l'}, - {"warning", required_argument, 0, 'w'}, - {"critical", required_argument, 0, 'c'}, - {"timeout", required_argument, 0, 't'}, - {"verbose", no_argument, 0, 'v'}, - {"version", no_argument, 0, 'V'}, - {"help", no_argument, 0, 'h'}, - {"record_type", required_argument, 0, 'T'}, - {"expected_address", required_argument, 0, 'a'}, - {0, 0, 0, 0} - }; - - if (argc < 2) - return ERROR; - - while (1) { - c = getopt_long (argc, argv, "hVvt:l:H:w:c:T:a:", longopts, &option); - - 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 'H': /* hostname */ - host_or_die(optarg); - dns_server = optarg; - break; - case 'p': /* server port */ - if (is_intpos (optarg)) { - server_port = atoi (optarg); - } - else { - usage_va(_("Port must be a positive integer - %s"), optarg); - } - break; - case 'l': /* address to lookup */ - query_address = optarg; - break; - case 'w': /* warning */ - if (is_nonnegative (optarg)) { - warning_interval = strtod (optarg, NULL); - } - else { - usage_va(_("Warning interval must be a positive integer - %s"), optarg); - } - break; - case 'c': /* critical */ - if (is_nonnegative (optarg)) { - critical_interval = strtod (optarg, NULL); - } - else { - usage_va(_("Critical interval must be a positive integer - %s"), optarg); - } - break; - case 't': /* timeout */ - if (is_intnonneg (optarg)) { - timeout_interval = atoi (optarg); - } - else { - usage_va(_("Timeout interval must be a positive integer - %s"), optarg); - } - break; - case 'v': /* verbose */ - verbose = TRUE; - break; - case 'T': - record_type = optarg; - break; - case 'a': - expected_address = optarg; - break; - default: /* usage_va */ - usage_va(_("Unknown argument - %s"), optarg); - } - } - - c = optind; - if (dns_server == NULL) { - if (c < argc) { - host_or_die(argv[c]); - dns_server = argv[c]; - } - else { - dns_server = strdup ("127.0.0.1"); - } - } - - return validate_arguments (); + int c; + + int option = 0; + static struct option longopts[] = { + {"hostname", required_argument, 0, 'H'}, + {"query_address", required_argument, 0, 'l'}, + {"warning", required_argument, 0, 'w'}, + {"critical", required_argument, 0, 'c'}, + {"timeout", required_argument, 0, 't'}, + {"dig-arguments", required_argument, 0, 'A'}, + {"verbose", no_argument, 0, 'v'}, + {"version", no_argument, 0, 'V'}, + {"help", no_argument, 0, 'h'}, + {"record_type", required_argument, 0, 'T'}, + {"expected_address", required_argument, 0, 'a'}, + {"port", required_argument, 0, 'p'}, + {0, 0, 0, 0} + }; + + if (argc < 2) + return ERROR; + + while (1) { + c = getopt_long (argc, argv, "hVvt:l:H:w:c:T:p:a:A:", longopts, &option); + + 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 'H': /* hostname */ + host_or_die(optarg); + dns_server = optarg; + break; + case 'p': /* server port */ + if (is_intpos (optarg)) { + server_port = atoi (optarg); + } + else { + usage_va(_("Port must be a positive integer - %s"), optarg); + } + break; + case 'l': /* address to lookup */ + query_address = optarg; + break; + case 'w': /* warning */ + if (is_nonnegative (optarg)) { + warning_interval = strtod (optarg, NULL); + } + else { + usage_va(_("Warning interval must be a positive integer - %s"), optarg); + } + break; + case 'c': /* critical */ + if (is_nonnegative (optarg)) { + critical_interval = strtod (optarg, NULL); + } + else { + usage_va(_("Critical interval must be a positive integer - %s"), optarg); + } + break; + case 't': /* timeout */ + if (is_intnonneg (optarg)) { + timeout_interval = atoi (optarg); + } + else { + usage_va(_("Timeout interval must be a positive integer - %s"), optarg); + } + break; + case 'A': /* dig arguments */ + dig_args = strdup(optarg); + break; + case 'v': /* verbose */ + verbose = TRUE; + break; + case 'T': + record_type = optarg; + break; + case 'a': + expected_address = optarg; + break; + default: /* usage5 */ + usage5(); + } + } + + c = optind; + if (dns_server == NULL) { + if (c < argc) { + host_or_die(argv[c]); + dns_server = argv[c]; + } + else { + dns_server = strdup ("127.0.0.1"); + } + } + + return validate_arguments (); } @@ -275,7 +293,10 @@ process_arguments (int argc, char **argv) int validate_arguments (void) { - return OK; + if (query_address != NULL) + return OK; + else + return ERROR; } @@ -283,43 +304,52 @@ validate_arguments (void) void print_help (void) { - char *myport; - - asprintf (&myport, "%d", DEFAULT_PORT); + char *myport; - print_revision (progname, revision); + asprintf (&myport, "%d", DEFAULT_PORT); - printf ("Copyright (c) 2000 Karl DeBisschop \n"); - printf (COPYRIGHT, copyright, email); + print_revision (progname, NP_VERSION); - printf (_("Test the DNS service on the specified host using dig\n\n")); + printf ("Copyright (c) 2000 Karl DeBisschop \n"); + printf (COPYRIGHT, copyright, email); - print_usage (); + printf (_("This plugin test the DNS service on the specified host using dig")); - printf (_(UT_HELP_VRSN)); + printf ("\n\n"); - printf (_(UT_HOST_PORT), 'P', myport); + print_usage (); - printf (_("\ - -l, --lookup=STRING\n\ - machine name to lookup\n")); + printf (UT_HELP_VRSN); - printf (_("\ - -T, --record_type=STRING\n\ - record type to lookup (default: A)\n")); + printf (UT_EXTRA_OPTS); - printf (_("\ - -a, --expected_address=STRING\n\ - an address expected to be in the answer section.\n\ - if not set, uses whatever was in -l\n")); + printf (UT_HOST_PORT, 'p', myport); - printf (_(UT_WARN_CRIT)); + printf (" %s\n","-l, --query_address=STRING"); + printf (" %s\n",_("Machine name to lookup")); + printf (" %s\n","-T, --record_type=STRING"); + printf (" %s\n",_("Record type to lookup (default: A)")); + printf (" %s\n","-a, --expected_address=STRING"); + printf (" %s\n",_("An address expected to be in the answer section. If not set, uses whatever")); + printf (" %s\n",_("was in -l")); + printf (" %s\n","-A, --dig-arguments=STRING"); + printf (" %s\n",_("Pass STRING as argument(s) to dig")); + printf (UT_WARN_CRIT); + printf (UT_TIMEOUT, DEFAULT_SOCKET_TIMEOUT); + printf (UT_VERBOSE); - printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT); + printf ("\n"); + printf ("%s\n", _("Examples:")); + printf (" %s\n", "check_dig -H DNSSERVER -l www.example.com -A \"+tcp\""); + printf (" %s\n", "This will send a tcp query to DNSSERVER for www.example.com"); - printf (_(UT_VERBOSE)); +#ifdef NP_EXTRA_OPTS + printf ("\n"); + printf ("%s\n", _("Notes:")); + printf (UT_EXTRA_OPTS_NOTES); +#endif - printf (_(UT_SUPPORT)); + printf (UT_SUPPORT); } @@ -327,8 +357,8 @@ print_help (void) void print_usage (void) { - printf ("\ -Usage: %s -H host -l lookup [-p ] [-T ]\n\ - [-w ] [-c ] [-t ]\n\ - [-a ] [-v]\n", progname); + printf (_("Usage:")); + printf ("%s -l [-H ] [-p ]\n", progname); + printf (" [-T ] [-w ] [-c ]\n"); + printf (" [-t ] [-a ] [-v]\n"); }