1 /******************************************************************************
3 This program is free software; you can redistribute it and/or modify
4 it under the terms of the GNU General Public License as published by
5 the Free Software Foundation; either version 2 of the License, or
6 (at your option) any later version.
8 This program is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 GNU General Public License for more details.
13 You should have received a copy of the GNU General Public License
14 along with this program; if not, write to the Free Software
15 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 ******************************************************************************/
19 const char *progname = "check_real";
20 const char *revision = "$Revision$";
21 const char *copyright = "2000-2003";
22 const char *email = "nagiosplug-devel@lists.sourceforge.net";
24 #include "common.h"
25 #include "netutils.h"
26 #include "utils.h"
28 enum {
29 PORT = 554
30 };
32 #define EXPECT "RTSP/1."
33 #define URL ""
35 int process_arguments (int, char **);
36 int validate_arguments (void);
37 void print_help (void);
38 void print_usage (void);
40 int server_port = PORT;
41 char *server_address;
42 char *host_name;
43 char *server_url = NULL;
44 char *server_expect;
45 int warning_time = 0;
46 int check_warning_time = FALSE;
47 int critical_time = 0;
48 int check_critical_time = FALSE;
49 int verbose = FALSE;
55 \f
56 int
57 main (int argc, char **argv)
58 {
59 int sd;
60 int result;
61 char buffer[MAX_INPUT_BUFFER];
62 char *status_line = NULL;
64 if (process_arguments (argc, argv) != OK)
65 usage (_("Invalid command arguments supplied\n"));
67 /* initialize alarm signal handling */
68 signal (SIGALRM, socket_timeout_alarm_handler);
70 /* set socket timeout */
71 alarm (socket_timeout);
72 time (&start_time);
74 /* try to connect to the host at the given port number */
75 if (my_tcp_connect (server_address, server_port, &sd) != STATE_OK)
76 die (STATE_CRITICAL, _("Unable to connect to %s on port %d\n"),
77 server_address, server_port);
79 /* Part I - Server Check */
81 /* send the OPTIONS request */
82 sprintf (buffer, "OPTIONS rtsp://%s:%d RTSP/1.0\r\n", host_name, server_port);
83 result = send (sd, buffer, strlen (buffer), 0);
85 /* send the header sync */
86 sprintf (buffer, "CSeq: 1\r\n");
87 result = send (sd, buffer, strlen (buffer), 0);
89 /* send a newline so the server knows we're done with the request */
90 sprintf (buffer, "\r\n");
91 result = send (sd, buffer, strlen (buffer), 0);
93 /* watch for the REAL connection string */
94 result = recv (sd, buffer, MAX_INPUT_BUFFER - 1, 0);
96 /* return a CRITICAL status if we couldn't read any data */
97 if (result == -1)
98 die (STATE_CRITICAL, _("No data received from %s\n"), host_name);
100 /* make sure we find the response we are looking for */
101 if (!strstr (buffer, server_expect)) {
102 if (server_port == PORT)
103 printf (_("Invalid REAL response received from host\n"));
104 else
105 printf (_("Invalid REAL response received from host on port %d\n"),
106 server_port);
107 }
108 else {
109 /* else we got the REAL string, so check the return code */
111 time (&end_time);
113 result = STATE_OK;
115 status_line = (char *) strtok (buffer, "\n");
117 if (strstr (status_line, "200"))
118 result = STATE_OK;
120 /* client errors result in a warning state */
121 else if (strstr (status_line, "400"))
122 result = STATE_WARNING;
123 else if (strstr (status_line, "401"))
124 result = STATE_WARNING;
125 else if (strstr (status_line, "402"))
126 result = STATE_WARNING;
127 else if (strstr (status_line, "403"))
128 result = STATE_WARNING;
129 else if (strstr (status_line, "404"))
130 result = STATE_WARNING;
132 /* server errors result in a critical state */
133 else if (strstr (status_line, "500"))
134 result = STATE_CRITICAL;
135 else if (strstr (status_line, "501"))
136 result = STATE_CRITICAL;
137 else if (strstr (status_line, "502"))
138 result = STATE_CRITICAL;
139 else if (strstr (status_line, "503"))
140 result = STATE_CRITICAL;
142 else
143 result = STATE_UNKNOWN;
144 }
146 /* Part II - Check stream exists and is ok */
147 if ((result == STATE_OK )&& (server_url != NULL) ) {
149 /* Part I - Server Check */
151 /* send the OPTIONS request */
152 sprintf (buffer, "DESCRIBE rtsp://%s:%d%s RTSP/1.0\n", host_name,
153 server_port, server_url);
154 result = send (sd, buffer, strlen (buffer), 0);
156 /* send the header sync */
157 sprintf (buffer, "CSeq: 2\n");
158 result = send (sd, buffer, strlen (buffer), 0);
160 /* send a newline so the server knows we're done with the request */
161 sprintf (buffer, "\n");
162 result = send (sd, buffer, strlen (buffer), 0);
164 /* watch for the REAL connection string */
165 result = recv (sd, buffer, MAX_INPUT_BUFFER - 1, 0);
167 /* return a CRITICAL status if we couldn't read any data */
168 if (result == -1) {
169 printf (_("No data received from host\n"));
170 result = STATE_CRITICAL;
171 }
172 else {
173 /* make sure we find the response we are looking for */
174 if (!strstr (buffer, server_expect)) {
175 if (server_port == PORT)
176 printf (_("Invalid REAL response received from host\n"));
177 else
178 printf (_("Invalid REAL response received from host on port %d\n"),
179 server_port);
180 }
181 else {
183 /* else we got the REAL string, so check the return code */
185 time (&end_time);
187 result = STATE_OK;
189 status_line = (char *) strtok (buffer, "\n");
191 if (strstr (status_line, "200"))
192 result = STATE_OK;
194 /* client errors result in a warning state */
195 else if (strstr (status_line, "400"))
196 result = STATE_WARNING;
197 else if (strstr (status_line, "401"))
198 result = STATE_WARNING;
199 else if (strstr (status_line, "402"))
200 result = STATE_WARNING;
201 else if (strstr (status_line, "403"))
202 result = STATE_WARNING;
203 else if (strstr (status_line, "404"))
204 result = STATE_WARNING;
206 /* server errors result in a critical state */
207 else if (strstr (status_line, "500"))
208 result = STATE_CRITICAL;
209 else if (strstr (status_line, "501"))
210 result = STATE_CRITICAL;
211 else if (strstr (status_line, "502"))
212 result = STATE_CRITICAL;
213 else if (strstr (status_line, "503"))
214 result = STATE_CRITICAL;
216 else
217 result = STATE_UNKNOWN;
218 }
219 }
220 }
222 /* Return results */
223 if (result == STATE_OK) {
225 if (check_critical_time == TRUE
226 && (end_time - start_time) > critical_time) result = STATE_CRITICAL;
227 else if (check_warning_time == TRUE
228 && (end_time - start_time) > warning_time) result =
229 STATE_WARNING;
231 /* Put some HTML in here to create a dynamic link */
232 printf (_("REAL %s - %d second response time\n"),
233 state_text (result),
234 (int) (end_time - start_time));
235 }
236 else
237 printf ("%s\n", status_line);
239 /* close the connection */
240 close (sd);
242 /* reset the alarm */
243 alarm (0);
245 return result;
246 }
252 \f
253 /* process command-line arguments */
254 int
255 process_arguments (int argc, char **argv)
256 {
257 int c;
259 int option_index = 0;
260 static struct option long_options[] = {
261 {"hostname", required_argument, 0, 'H'},
262 {"IPaddress", required_argument, 0, 'I'},
263 {"expect", required_argument, 0, 'e'},
264 {"url", required_argument, 0, 'u'},
265 {"port", required_argument, 0, 'p'},
266 {"critical", required_argument, 0, 'c'},
267 {"warning", required_argument, 0, 'w'},
268 {"timeout", required_argument, 0, 't'},
269 {"verbose", no_argument, 0, 'v'},
270 {"version", no_argument, 0, 'V'},
271 {"help", no_argument, 0, 'h'},
272 {0, 0, 0, 0}
273 };
275 if (argc < 2)
276 return ERROR;
278 for (c = 1; c < argc; c++) {
279 if (strcmp ("-to", argv[c]) == 0)
280 strcpy (argv[c], "-t");
281 else if (strcmp ("-wt", argv[c]) == 0)
282 strcpy (argv[c], "-w");
283 else if (strcmp ("-ct", argv[c]) == 0)
284 strcpy (argv[c], "-c");
285 }
287 while (1) {
288 c = getopt_long (argc, argv, "+hVI:H:e:u:p:w:c:t:", long_options,
289 &option_index);
291 if (c == -1 || c == EOF)
292 break;
294 switch (c) {
295 case 'I': /* hostname */
296 case 'H': /* hostname */
297 if (server_address)
298 break;
299 else if (is_host (optarg))
300 server_address = strdup(optarg);
301 else
302 usage (_("Invalid host name\n"));
303 break;
304 case 'e': /* string to expect in response header */
305 server_expect = strdup(optarg);
306 break;
307 case 'u': /* server URL */
308 server_url = strdup(optarg);
309 break;
310 case 'p': /* port */
311 if (is_intpos (optarg)) {
312 server_port = atoi (optarg);
313 }
314 else {
315 usage (_("Server port must be a positive integer\n"));
316 }
317 break;
318 case 'w': /* warning time threshold */
319 if (is_intnonneg (optarg)) {
320 warning_time = atoi (optarg);
321 check_warning_time = TRUE;
322 }
323 else {
324 usage (_("Warning time must be a nonnegative integer\n"));
325 }
326 break;
327 case 'c': /* critical time threshold */
328 if (is_intnonneg (optarg)) {
329 critical_time = atoi (optarg);
330 check_critical_time = TRUE;
331 }
332 else {
333 usage (_("Critical time must be a nonnegative integer\n"));
334 }
335 break;
336 case 'v': /* verbose */
337 verbose = TRUE;
338 break;
339 case 't': /* timeout */
340 if (is_intnonneg (optarg)) {
341 socket_timeout = atoi (optarg);
342 }
343 else {
344 usage (_("Time interval must be a nonnegative integer\n"));
345 }
346 break;
347 case 'V': /* version */
348 print_revision (progname, "$Revision$");
349 exit (STATE_OK);
350 case 'h': /* help */
351 print_help ();
352 exit (STATE_OK);
353 case '?': /* usage */
354 usage (_("Invalid argument\n"));
355 }
356 }
358 c = optind;
359 if (server_address==NULL && argc>c) {
360 if (is_host (argv[c])) {
361 server_address = argv[c++];
362 }
363 else {
364 usage (_("Invalid host name"));
365 }
366 }
368 if (server_address==NULL)
369 usage (_("You must provide a server to check\n"));
371 if (host_name==NULL)
372 host_name = strdup (server_address);
374 if (server_expect == NULL)
375 server_expect = strdup(EXPECT);
377 return validate_arguments ();
378 }
384 int
385 validate_arguments (void)
386 {
387 return OK;
388 }
393 \f
394 void
395 print_help (void)
396 {
397 char *myport;
398 asprintf (&myport, "%d", PORT);
400 print_revision (progname, "$Revision$");
402 printf (_("Copyright (c) 1999 Pedro Leite <leite@cic.ua.pt>\n"));
403 printf (_(COPYRIGHT), copyright, email);
405 printf (_("This plugin tests the REAL service on the specified host.\n\n"));
407 print_usage ();
409 printf (_(UT_HELP_VRSN));
411 printf (_(UT_HOST_PORT), 'p', myport);
413 printf (_("\
414 -u, --url=STRING\n\
415 Connect to this url\n\
416 -e, --expect=STRING\n\
417 String to expect in first line of server response (default: %s)\n"),
418 EXPECT);
420 printf (_(UT_WARN_CRIT));
422 printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
424 printf (_(UT_VERBOSE));
426 printf(_("\
427 This plugin will attempt to open an RTSP connection with the host.\n\
428 Successul connects return STATE_OK, refusals and timeouts return\n\
429 STATE_CRITICAL, other errors return STATE_UNKNOWN. Successful connects,\n\
430 but incorrect reponse messages from the host result in STATE_WARNING return\n\
431 values."));
433 printf (_(UT_SUPPORT));
434 }
440 void
441 print_usage (void)
442 {
443 printf ("\
444 Usage: %s -H host [-e expect] [-p port] [-w warn] [-c crit]\n\
445 [-t timeout] [-v]\n", progname);
446 printf (_(UT_HLP_VRS), progname, progname);
447 }