summaryrefslogtreecommitdiffstats
path: root/plugins/check_dig.c
diff options
context:
space:
mode:
Diffstat (limited to 'plugins/check_dig.c')
-rw-r--r--plugins/check_dig.c481
1 files changed, 247 insertions, 234 deletions
diff --git a/plugins/check_dig.c b/plugins/check_dig.c
index bc4dcd5c..c9fce613 100644
--- a/plugins/check_dig.c
+++ b/plugins/check_dig.c
@@ -26,7 +26,7 @@
26 26
27const char *progname = "check_dig"; 27const char *progname = "check_dig";
28const char *revision = "$Revision$"; 28const char *revision = "$Revision$";
29const char *copyright = "2002-2004"; 29const char *copyright = "2002-2005";
30const char *email = "nagiosplug-devel@lists.sourceforge.net"; 30const char *email = "nagiosplug-devel@lists.sourceforge.net";
31 31
32#include "common.h" 32#include "common.h"
@@ -55,113 +55,113 @@ struct timeval tv;
55int 55int
56main (int argc, char **argv) 56main (int argc, char **argv)
57{ 57{
58 char *command_line; 58 char *command_line;
59 output chld_out, chld_err; 59 output chld_out, chld_err;
60 char *msg = NULL; 60 char *msg = NULL;
61 size_t i; 61 size_t i;
62 char *t; 62 char *t;
63 long microsec; 63 long microsec;
64 double elapsed_time; 64 double elapsed_time;
65 int result = STATE_UNKNOWN; 65 int result = STATE_UNKNOWN;
66 66
67 setlocale (LC_ALL, ""); 67 setlocale (LC_ALL, "");
68 bindtextdomain (PACKAGE, LOCALEDIR); 68 bindtextdomain (PACKAGE, LOCALEDIR);
69 textdomain (PACKAGE); 69 textdomain (PACKAGE);
70 70
71 /* Set signal handling and alarm */ 71 /* Set signal handling and alarm */
72 if (signal (SIGALRM, popen_timeout_alarm_handler) == SIG_ERR) 72 if (signal (SIGALRM, popen_timeout_alarm_handler) == SIG_ERR)
73 usage_va(_("Cannot catch SIGALRM")); 73 usage_va(_("Cannot catch SIGALRM"));
74 74
75 if (process_arguments (argc, argv) == ERROR) 75 if (process_arguments (argc, argv) == ERROR)
76 usage_va(_("Could not parse arguments")); 76 usage_va(_("Could not parse arguments"));
77 77
78 /* get the command to run */ 78 /* get the command to run */
79 asprintf (&command_line, "%s @%s -p %d %s -t %s", 79 asprintf (&command_line, "%s @%s -p %d %s -t %s",
80 PATH_TO_DIG, dns_server, server_port, query_address, record_type); 80 PATH_TO_DIG, dns_server, server_port, query_address, record_type);
81 81
82 alarm (timeout_interval); 82 alarm (timeout_interval);
83 gettimeofday (&tv, NULL); 83 gettimeofday (&tv, NULL);
84 84
85 if (verbose) { 85 if (verbose) {
86 printf ("%s\n", command_line); 86 printf ("%s\n", command_line);
87 if(expected_address != NULL) { 87 if(expected_address != NULL) {
88 printf (_("Looking for: '%s'\n"), expected_address); 88 printf (_("Looking for: '%s'\n"), expected_address);
89 } else { 89 } else {
90 printf (_("Looking for: '%s'\n"), query_address); 90 printf (_("Looking for: '%s'\n"), query_address);
91 } 91 }
92 } 92 }
93 93
94 /* run the command */ 94 /* run the command */
95 if(np_runcmd(command_line, &chld_out, &chld_err, 0) != 0) { 95 if(np_runcmd(command_line, &chld_out, &chld_err, 0) != 0) {
96 result = STATE_WARNING; 96 result = STATE_WARNING;
97 msg = (char *)_("dig returned an error status"); 97 msg = (char *)_("dig returned an error status");
98 } 98 }
99 99
100 for(i = 0; i < chld_out.lines; i++) { 100 for(i = 0; i < chld_out.lines; i++) {
101 /* the server is responding, we just got the host name... */ 101 /* the server is responding, we just got the host name... */
102 if (strstr (chld_out.line[i], ";; ANSWER SECTION:")) { 102 if (strstr (chld_out.line[i], ";; ANSWER SECTION:")) {
103 103
104 /* loop through the whole 'ANSWER SECTION' */ 104 /* loop through the whole 'ANSWER SECTION' */
105 for(; i < chld_out.lines; i++) { 105 for(; i < chld_out.lines; i++) {
106 /* get the host address */ 106 /* get the host address */
107 if (verbose) 107 if (verbose)
108 printf ("%s\n", chld_out.line[i]); 108 printf ("%s\n", chld_out.line[i]);
109 109
110 if (strstr (chld_out.line[i], (expected_address == NULL ? query_address : expected_address)) != NULL) { 110 if (strstr (chld_out.line[i], (expected_address == NULL ? query_address : expected_address)) != NULL) {
111 msg = chld_out.line[i]; 111 msg = chld_out.line[i];
112 result = STATE_OK; 112 result = STATE_OK;
113 113
114 /* Translate output TAB -> SPACE */ 114 /* Translate output TAB -> SPACE */
115 t = msg; 115 t = msg;
116 while ((t = strchr(t, '\t')) != NULL) *t = ' '; 116 while ((t = strchr(t, '\t')) != NULL) *t = ' ';
117 break; 117 break;
118 } 118 }
119 } 119 }
120 120
121 if (result == STATE_UNKNOWN) { 121 if (result == STATE_UNKNOWN) {
122 msg = (char *)_("Server not found in ANSWER SECTION"); 122 msg = (char *)_("Server not found in ANSWER SECTION");
123 result = STATE_WARNING; 123 result = STATE_WARNING;
124 } 124 }
125 125
126 /* we found the answer section, so break out of the loop */ 126 /* we found the answer section, so break out of the loop */
127 break; 127 break;
128 } 128 }
129 } 129 }
130 130
131 if (result == STATE_UNKNOWN) 131 if (result == STATE_UNKNOWN)
132 msg = (char *)_("No ANSWER SECTION found"); 132 msg = (char *)_("No ANSWER SECTION found");
133 133
134 /* If we get anything on STDERR, at least set warning */ 134 /* If we get anything on STDERR, at least set warning */
135 if(chld_err.buflen > 0) { 135 if(chld_err.buflen > 0) {
136 result = max_state(result, STATE_WARNING); 136 result = max_state(result, STATE_WARNING);
137 if(!msg) for(i = 0; i < chld_err.lines; i++) { 137 if(!msg) for(i = 0; i < chld_err.lines; i++) {
138 msg = strchr(chld_err.line[0], ':'); 138 msg = strchr(chld_err.line[0], ':');
139 if(msg) { 139 if(msg) {
140 msg++; 140 msg++;
141 break; 141 break;
142 } 142 }
143 } 143 }
144 } 144 }
145 145
146 microsec = deltime (tv); 146 microsec = deltime (tv);
147 elapsed_time = (double)microsec / 1.0e6; 147 elapsed_time = (double)microsec / 1.0e6;
148 148
149 if (critical_interval > UNDEFINED && elapsed_time > critical_interval) 149 if (critical_interval > UNDEFINED && elapsed_time > critical_interval)
150 result = STATE_CRITICAL; 150 result = STATE_CRITICAL;
151 151
152 else if (warning_interval > UNDEFINED && elapsed_time > warning_interval) 152 else if (warning_interval > UNDEFINED && elapsed_time > warning_interval)
153 result = STATE_WARNING; 153 result = STATE_WARNING;
154 154
155 printf ("DNS %s - %.3f seconds response time (%s)|%s\n", 155 printf ("DNS %s - %.3f seconds response time (%s)|%s\n",
156 state_text (result), elapsed_time, 156 state_text (result), elapsed_time,
157 msg ? msg : _("Probably a non-existent host/domain"), 157 msg ? msg : _("Probably a non-existent host/domain"),
158 fperfdata("time", elapsed_time, "s", 158 fperfdata("time", elapsed_time, "s",
159 (warning_interval>UNDEFINED?TRUE:FALSE), 159 (warning_interval>UNDEFINED?TRUE:FALSE),
160 warning_interval, 160 warning_interval,
161 (critical_interval>UNDEFINED?TRUE:FALSE), 161 (critical_interval>UNDEFINED?TRUE:FALSE),
162 critical_interval, 162 critical_interval,
163 TRUE, 0, FALSE, 0)); 163 TRUE, 0, FALSE, 0));
164 return result; 164 return result;
165} 165}
166 166
167 167
@@ -170,104 +170,104 @@ main (int argc, char **argv)
170int 170int
171process_arguments (int argc, char **argv) 171process_arguments (int argc, char **argv)
172{ 172{
173 int c; 173 int c;
174 174
175 int option = 0; 175 int option = 0;
176 static struct option longopts[] = { 176 static struct option longopts[] = {
177 {"hostname", required_argument, 0, 'H'}, 177 {"hostname", required_argument, 0, 'H'},
178 {"query_address", required_argument, 0, 'l'}, 178 {"query_address", required_argument, 0, 'l'},
179 {"warning", required_argument, 0, 'w'}, 179 {"warning", required_argument, 0, 'w'},
180 {"critical", required_argument, 0, 'c'}, 180 {"critical", required_argument, 0, 'c'},
181 {"timeout", required_argument, 0, 't'}, 181 {"timeout", required_argument, 0, 't'},
182 {"verbose", no_argument, 0, 'v'}, 182 {"verbose", no_argument, 0, 'v'},
183 {"version", no_argument, 0, 'V'}, 183 {"version", no_argument, 0, 'V'},
184 {"help", no_argument, 0, 'h'}, 184 {"help", no_argument, 0, 'h'},
185 {"record_type", required_argument, 0, 'T'}, 185 {"record_type", required_argument, 0, 'T'},
186 {"expected_address", required_argument, 0, 'a'}, 186 {"expected_address", required_argument, 0, 'a'},
187 {0, 0, 0, 0} 187 {0, 0, 0, 0}
188 }; 188 };
189 189
190 if (argc < 2) 190 if (argc < 2)
191 return ERROR; 191 return ERROR;
192 192
193 while (1) { 193 while (1) {
194 c = getopt_long (argc, argv, "hVvt:l:H:w:c:T:a:", longopts, &option); 194 c = getopt_long (argc, argv, "hVvt:l:H:w:c:T:a:", longopts, &option);
195 195
196 if (c == -1 || c == EOF) 196 if (c == -1 || c == EOF)
197 break; 197 break;
198 198
199 switch (c) { 199 switch (c) {
200 case 'h': /* help */ 200 case 'h': /* help */
201 print_help (); 201 print_help ();
202 exit (STATE_OK); 202 exit (STATE_OK);
203 case 'V': /* version */ 203 case 'V': /* version */
204 print_revision (progname, revision); 204 print_revision (progname, revision);
205 exit (STATE_OK); 205 exit (STATE_OK);
206 case 'H': /* hostname */ 206 case 'H': /* hostname */
207 host_or_die(optarg); 207 host_or_die(optarg);
208 dns_server = optarg; 208 dns_server = optarg;
209 break; 209 break;
210 case 'p': /* server port */ 210 case 'p': /* server port */
211 if (is_intpos (optarg)) { 211 if (is_intpos (optarg)) {
212 server_port = atoi (optarg); 212 server_port = atoi (optarg);
213 } 213 }
214 else { 214 else {
215 usage_va(_("Port must be a positive integer - %s"), optarg); 215 usage_va(_("Port must be a positive integer - %s"), optarg);
216 } 216 }
217 break; 217 break;
218 case 'l': /* address to lookup */ 218 case 'l': /* address to lookup */
219 query_address = optarg; 219 query_address = optarg;
220 break; 220 break;
221 case 'w': /* warning */ 221 case 'w': /* warning */
222 if (is_nonnegative (optarg)) { 222 if (is_nonnegative (optarg)) {
223 warning_interval = strtod (optarg, NULL); 223 warning_interval = strtod (optarg, NULL);
224 } 224 }
225 else { 225 else {
226 usage_va(_("Warning interval must be a positive integer - %s"), optarg); 226 usage_va(_("Warning interval must be a positive integer - %s"), optarg);
227 } 227 }
228 break; 228 break;
229 case 'c': /* critical */ 229 case 'c': /* critical */
230 if (is_nonnegative (optarg)) { 230 if (is_nonnegative (optarg)) {
231 critical_interval = strtod (optarg, NULL); 231 critical_interval = strtod (optarg, NULL);
232 } 232 }
233 else { 233 else {
234 usage_va(_("Critical interval must be a positive integer - %s"), optarg); 234 usage_va(_("Critical interval must be a positive integer - %s"), optarg);
235 } 235 }
236 break; 236 break;
237 case 't': /* timeout */ 237 case 't': /* timeout */
238 if (is_intnonneg (optarg)) { 238 if (is_intnonneg (optarg)) {
239 timeout_interval = atoi (optarg); 239 timeout_interval = atoi (optarg);
240 } 240 }
241 else { 241 else {
242 usage_va(_("Timeout interval must be a positive integer - %s"), optarg); 242 usage_va(_("Timeout interval must be a positive integer - %s"), optarg);
243 } 243 }
244 break; 244 break;
245 case 'v': /* verbose */ 245 case 'v': /* verbose */
246 verbose = TRUE; 246 verbose = TRUE;
247 break; 247 break;
248 case 'T': 248 case 'T':
249 record_type = optarg; 249 record_type = optarg;
250 break; 250 break;
251 case 'a': 251 case 'a':
252 expected_address = optarg; 252 expected_address = optarg;
253 break; 253 break;
254 default: /* usage_va */ 254 default: /* usage_va */
255 usage_va(_("Unknown argument - %s"), optarg); 255 usage_va(_("Unknown argument - %s"), optarg);
256 } 256 }
257 } 257 }
258 258
259 c = optind; 259 c = optind;
260 if (dns_server == NULL) { 260 if (dns_server == NULL) {
261 if (c < argc) { 261 if (c < argc) {
262 host_or_die(argv[c]); 262 host_or_die(argv[c]);
263 dns_server = argv[c]; 263 dns_server = argv[c];
264 } 264 }
265 else { 265 else {
266 dns_server = strdup ("127.0.0.1"); 266 dns_server = strdup ("127.0.0.1");
267 } 267 }
268 } 268 }
269 269
270 return validate_arguments (); 270 return validate_arguments ();
271} 271}
272 272
273 273
@@ -275,7 +275,7 @@ process_arguments (int argc, char **argv)
275int 275int
276validate_arguments (void) 276validate_arguments (void)
277{ 277{
278 return OK; 278 return OK;
279} 279}
280 280
281 281
@@ -283,43 +283,56 @@ validate_arguments (void)
283void 283void
284print_help (void) 284print_help (void)
285{ 285{
286 char *myport; 286 char *myport;
287 287
288 asprintf (&myport, "%d", DEFAULT_PORT); 288 asprintf (&myport, "%d", DEFAULT_PORT);
289 289
290 print_revision (progname, revision); 290 print_revision (progname, revision);
291 291
292 printf ("Copyright (c) 2000 Karl DeBisschop <kdebisschop@users.sourceforge.net>\n"); 292 printf ("Copyright (c) 2000 Karl DeBisschop <kdebisschop@users.sourceforge.net>\n");
293 printf (COPYRIGHT, copyright, email); 293 printf (COPYRIGHT, copyright, email);
294 294
295 printf (_("Test the DNS service on the specified host using dig\n\n")); 295 printf (_("This plugin test the DNS service on the specified host using dig"));
296 296
297 print_usage (); 297 printf ("\n\n");
298 298
299 printf (_(UT_HELP_VRSN)); 299 print_usage ();
300 300
301 printf (_(UT_HOST_PORT), 'P', myport); 301 printf (_(UT_HELP_VRSN));
302 302
303 printf (_("\ 303 printf (_(UT_HOST_PORT), 'P', myport);
304 -l, --lookup=STRING\n\
305 machine name to lookup\n"));
306 304
307 printf (_("\ 305 printf ("-l, --lookup=STRING");
308 -T, --record_type=STRING\n\ 306
309 record type to lookup (default: A)\n")); 307 printf ("\n");
310 308
311 printf (_("\ 309 printf (_("machine name to lookup"));
312 -a, --expected_address=STRING\n\
313 an address expected to be in the answer section.\n\
314 if not set, uses whatever was in -l\n"));
315 310
316 printf (_(UT_WARN_CRIT)); 311 printf ("\n");
317 312
318 printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT); 313 printf ("-T, --record_type=STRING");
319 314
320 printf (_(UT_VERBOSE)); 315 printf ("\n");
321 316
322 printf (_(UT_SUPPORT)); 317 printf (_("record type to lookup (default: A)"));
318
319 printf ("\n");
320
321 printf ("-a, --expected_address=STRING");
322
323 printf ("\n");
324
325 printf (_("an address expected to be in the answer section.if not set, uses whatever was in -l"));
326
327 printf ("\n");
328
329 printf (_(UT_WARN_CRIT));
330
331 printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
332
333 printf (_(UT_VERBOSE));
334
335 printf (_(UT_SUPPORT));
323} 336}
324 337
325 338
@@ -327,8 +340,8 @@ print_help (void)
327void 340void
328print_usage (void) 341print_usage (void)
329{ 342{
330 printf ("\ 343 printf (_("Usage:"));
331Usage: %s -H host -l lookup [-p <server port>] [-T <query type>]\n\ 344 printf ("%s -H host -l lookup [-p <server port>] [-T <query type>]", progname);
332 [-w <warning interval>] [-c <critical interval>] [-t <timeout>]\n\ 345 printf (" [-w <warning interval>] [-c <critical interval>] [-t <timeout>]");
333 [-a <expected answer address>] [-v]\n", progname); 346 printf (" [-a <expected answer address>] [-v]\n");
334} 347}