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-rw-r--r--plugins/check_real.c661
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diff --git a/plugins/check_real.c b/plugins/check_real.c
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+++ b/plugins/check_real.c
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+/*****************************************************************************
+*
+* CHECK_REAL.C
+*
+* Program: RealMedia plugin for Nagios
+* License: GPL
+* Copyright (c) 1999 Pedro Leite (leite@cic.ua.pt)
+*
+* Based on CHECK_HTTP.C
+* Copyright (c) 1999 Ethan Galstad (nagios@nagios.org)
+*
+* Last Modified: $Date$
+*
+* Command line: CHECK_REAL <host_address> [-e expect] [-u url] [-p port]
+* [-hn host_name] [-wt warn_time] [-ct crit_time]
+* [-to to_sec]
+*
+* Description:
+*
+* This plugin will attempt to open an RTSP connection with the host.
+* Successul connects return STATE_OK, refusals and timeouts return
+* STATE_CRITICAL, other errors return STATE_UNKNOWN. Successful connects,
+* but incorrect reponse messages from the host result in STATE_WARNING return
+* values. If you are checking a virtual server that uses "host headers"you
+* must supply the FQDN (fully qualified domain name) as the [host_name]
+* argument.
+*
+* License Information:
+*
+* 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.
+*
+****************************************************************************/
+
+#include "config.h"
+#include "common.h"
+#include "netutils.h"
+#include "utils.h"
+
+#define PROGNAME "check_real"
+
+#define PORT 554
+#define EXPECT "RTSP/1."
+#define URL ""
+
+int process_arguments (int, char **);
+int call_getopt (int, char **);
+int validate_arguments (void);
+int check_disk (int usp, int free_disk);
+void print_help (void);
+void print_usage (void);
+
+int server_port = PORT;
+char *server_address = NULL;
+char *host_name = NULL;
+char *server_url = NULL;
+char *server_expect = NULL;
+int warning_time = 0;
+int check_warning_time = FALSE;
+int critical_time = 0;
+int check_critical_time = FALSE;
+int verbose = FALSE;
+
+int
+main (int argc, char **argv)
+{
+ int sd;
+ int result;
+ char buffer[MAX_INPUT_BUFFER];
+ char *status_line = NULL;
+
+ if (process_arguments (argc, argv) != OK)
+ usage ("Invalid command arguments supplied\n");
+
+ /* initialize alarm signal handling */
+ signal (SIGALRM, socket_timeout_alarm_handler);
+
+ /* set socket timeout */
+ alarm (socket_timeout);
+ time (&start_time);
+
+ /* try to connect to the host at the given port number */
+ if (my_tcp_connect (server_address, server_port, &sd) != STATE_OK)
+ terminate (STATE_CRITICAL, "Unable to connect to %s on port %d\n",
+ server_address, server_port);
+
+ /* Part I - Server Check */
+
+ /* send the OPTIONS request */
+ sprintf (buffer, "OPTIONS rtsp://%s:%d RTSP/1.0\n", host_name, server_port);
+ result = send (sd, buffer, strlen (buffer), 0);
+
+ /* send the header sync */
+ sprintf (buffer, "CSeq: 1\n");
+ result = send (sd, buffer, strlen (buffer), 0);
+
+ /* send a newline so the server knows we're done with the request */
+ sprintf (buffer, "\n");
+ result = send (sd, buffer, strlen (buffer), 0);
+
+ /* watch for the REAL connection string */
+ result = recv (sd, buffer, MAX_INPUT_BUFFER - 1, 0);
+
+ /* return a CRITICAL status if we couldn't read any data */
+ if (result == -1)
+ terminate (STATE_CRITICAL, "No data received from %s\n", host_name);
+
+ /* make sure we find the response we are looking for */
+ if (!strstr (buffer, EXPECT)) {
+ if (server_port == PORT)
+ printf ("Invalid REAL response received from host\n");
+ else
+ printf ("Invalid REAL response received from host on port %d\n",
+ server_port);
+ }
+ else {
+ /* else we got the REAL string, so check the return code */
+
+ time (&end_time);
+
+ result = STATE_OK;
+
+ status_line = (char *) strtok (buffer, "\n");
+
+ if (strstr (status_line, "200"))
+ result = STATE_OK;
+
+ /* client errors result in a warning state */
+ else if (strstr (status_line, "400"))
+ result = STATE_WARNING;
+ else if (strstr (status_line, "401"))
+ result = STATE_WARNING;
+ else if (strstr (status_line, "402"))
+ result = STATE_WARNING;
+ else if (strstr (status_line, "403"))
+ result = STATE_WARNING;
+ else if (strstr (status_line, "404"))
+ result = STATE_WARNING;
+
+ /* server errors result in a critical state */
+ else if (strstr (status_line, "500"))
+ result = STATE_CRITICAL;
+ else if (strstr (status_line, "501"))
+ result = STATE_CRITICAL;
+ else if (strstr (status_line, "502"))
+ result = STATE_CRITICAL;
+ else if (strstr (status_line, "503"))
+ result = STATE_CRITICAL;
+
+ else
+ result = STATE_UNKNOWN;
+ }
+
+ /* Part II - Check stream exists and is ok */
+ if ((result == STATE_OK) && (server_url != NULL)) {
+
+ /* Part I - Server Check */
+
+ /* send the OPTIONS request */
+ sprintf (buffer, "DESCRIBE rtsp://%s:%d%s RTSP/1.0\n", host_name,
+ server_port, server_url);
+ result = send (sd, buffer, strlen (buffer), 0);
+
+ /* send the header sync */
+ sprintf (buffer, "CSeq: 2\n");
+ result = send (sd, buffer, strlen (buffer), 0);
+
+ /* send a newline so the server knows we're done with the request */
+ sprintf (buffer, "\n");
+ result = send (sd, buffer, strlen (buffer), 0);
+
+ /* watch for the REAL connection string */
+ result = recv (sd, buffer, MAX_INPUT_BUFFER - 1, 0);
+
+ /* return a CRITICAL status if we couldn't read any data */
+ if (result == -1) {
+ printf ("No data received from host\n");
+ result = STATE_CRITICAL;
+ }
+ else {
+ /* make sure we find the response we are looking for */
+ if (!strstr (buffer, EXPECT)) {
+ if (server_port == PORT)
+ printf ("Invalid REAL response received from host\n");
+ else
+ printf ("Invalid REAL response received from host on port %d\n",
+ server_port);
+ }
+ else {
+
+ /* else we got the REAL string, so check the return code */
+
+ time (&end_time);
+
+ result = STATE_OK;
+
+ status_line = (char *) strtok (buffer, "\n");
+
+ if (strstr (status_line, "200"))
+ result = STATE_OK;
+
+ /* client errors result in a warning state */
+ else if (strstr (status_line, "400"))
+ result = STATE_WARNING;
+ else if (strstr (status_line, "401"))
+ result = STATE_WARNING;
+ else if (strstr (status_line, "402"))
+ result = STATE_WARNING;
+ else if (strstr (status_line, "403"))
+ result = STATE_WARNING;
+ else if (strstr (status_line, "404"))
+ result = STATE_WARNING;
+
+ /* server errors result in a critical state */
+ else if (strstr (status_line, "500"))
+ result = STATE_CRITICAL;
+ else if (strstr (status_line, "501"))
+ result = STATE_CRITICAL;
+ else if (strstr (status_line, "502"))
+ result = STATE_CRITICAL;
+ else if (strstr (status_line, "503"))
+ result = STATE_CRITICAL;
+
+ else
+ result = STATE_UNKNOWN;
+ }
+ }
+ }
+
+ /* Return results */
+ if (result == STATE_OK) {
+
+ if (check_critical_time == TRUE
+ && (end_time - start_time) > critical_time) result = STATE_CRITICAL;
+ else if (check_warning_time == TRUE
+ && (end_time - start_time) > warning_time) result =
+ STATE_WARNING;
+
+ /* Put some HTML in here to create a dynamic link */
+ printf ("REAL %s - %d second response time\n",
+ (result == STATE_OK) ? "ok" : "problem",
+ (int) (end_time - start_time));
+ }
+ else
+ printf ("%s\n", status_line);
+
+ /* close the connection */
+ close (sd);
+
+ /* reset the alarm */
+ alarm (0);
+
+ return result;
+}
+
+
+
+
+
+
+/* process command-line arguments */
+int
+process_arguments (int argc, char **argv)
+{
+ int c;
+
+ if (argc < 2)
+ return ERROR;
+
+ for (c = 1; c < argc; c++) {
+ if (strcmp ("-to", argv[c]) == 0)
+ strcpy (argv[c], "-t");
+ else if (strcmp ("-wt", argv[c]) == 0)
+ strcpy (argv[c], "-w");
+ else if (strcmp ("-ct", argv[c]) == 0)
+ strcpy (argv[c], "-c");
+ }
+
+
+
+ c = 0;
+ while ((c += (call_getopt (argc - c, &argv[c]))) < argc) {
+
+ if (is_option (argv[c]))
+ continue;
+
+ if (server_address == NULL) {
+ if (is_host (argv[c])) {
+ server_address = argv[c];
+ }
+ else {
+ usage ("Invalid host name");
+ }
+ }
+ }
+
+ if (server_expect == NULL)
+ server_expect = strscpy (NULL, EXPECT);
+
+ return validate_arguments ();
+}
+
+
+
+
+
+
+int
+call_getopt (int argc, char **argv)
+{
+ int c, i = 0;
+
+#ifdef HAVE_GETOPT_H
+ int option_index = 0;
+ static struct option long_options[] = {
+ {"hostname", required_argument, 0, 'H'},
+ {"IPaddress", required_argument, 0, 'I'},
+ {"expect", required_argument, 0, 'e'},
+ {"url", required_argument, 0, 'u'},
+ {"port", required_argument, 0, 'p'},
+ {"critical", required_argument, 0, 'c'},
+ {"warning", required_argument, 0, 'w'},
+ {"timeout", required_argument, 0, 't'},
+ {"verbose", no_argument, 0, 'v'},
+ {"version", no_argument, 0, 'V'},
+ {"help", no_argument, 0, 'h'},
+ {0, 0, 0, 0}
+ };
+#endif
+
+ while (1) {
+#ifdef HAVE_GETOPT_H
+ c =
+ getopt_long (argc, argv, "+hVI:H:e:u:p:w:c:t:", long_options,
+ &option_index);
+#else
+ c = getopt (argc, argv, "+?hVI:H:e:u:p:w:c:t");
+#endif
+
+ i++;
+
+ if (c == -1 || c == EOF || c == 1)
+ break;
+
+ switch (c) {
+ case 'I':
+ case 'H':
+ case 'e':
+ case 'u':
+ case 'p':
+ case 'w':
+ case 'c':
+ case 't':
+ i++;
+ }
+
+ switch (c) {
+ case 'I': /* hostname */
+ if (is_host (optarg)) {
+ server_address = optarg;
+ }
+ else {
+ usage ("Invalid host name\n");
+ }
+ break;
+ case 'H': /* hostname */
+ if (is_host (optarg)) {
+ server_address = optarg;
+ }
+ else {
+ usage ("Invalid host name\n");
+ }
+ break;
+ case 'e': /* string to expect in response header */
+ server_expect = optarg;
+ break;
+ case 'u': /* string to expect in response header */
+ server_url = optarg;
+ break;
+ case 'p': /* port */
+ if (is_intpos (optarg)) {
+ server_port = atoi (optarg);
+ }
+ else {
+ usage ("Server port must be a positive integer\n");
+ }
+ break;
+ case 'w': /* warning time threshold */
+ if (is_intnonneg (optarg)) {
+ warning_time = atoi (optarg);
+ check_warning_time = TRUE;
+ }
+ else {
+ usage ("Warning time must be a nonnegative integer\n");
+ }
+ break;
+ case 'c': /* critical time threshold */
+ if (is_intnonneg (optarg)) {
+ critical_time = atoi (optarg);
+ check_critical_time = TRUE;
+ }
+ else {
+ usage ("Critical time must be a nonnegative integer\n");
+ }
+ break;
+ case 'v': /* verbose */
+ verbose = TRUE;
+ break;
+ case 't': /* timeout */
+ if (is_intnonneg (optarg)) {
+ socket_timeout = atoi (optarg);
+ }
+ else {
+ usage ("Time interval must be a nonnegative integer\n");
+ }
+ break;
+ case 'V': /* version */
+ print_revision (PROGNAME, "$Revision$");
+ exit (STATE_OK);
+ case 'h': /* help */
+ print_help ();
+ exit (STATE_OK);
+ case '?': /* help */
+ usage ("Invalid argument\n");
+ }
+ }
+ return i;
+}
+
+
+
+
+
+int
+validate_arguments (void)
+{
+ return OK;
+}
+
+
+
+
+
+void
+print_help (void)
+{
+ print_revision (PROGNAME, "$Revision$");
+ printf
+ ("Copyright (c) 2000 Pedro Leite (leite@cic.ua.pt)/Karl DeBisschop\n\n"
+ "This plugin tests the REAL service on the specified host.\n\n");
+ print_usage ();
+ printf
+ ("\nOptions:\n"
+ " -H, --hostname=STRING or IPADDRESS\n"
+ " Check this server on the indicated host\n"
+ " -I, --IPaddress=STRING or IPADDRESS\n"
+ " Check server at this host address\n"
+ " -p, --port=INTEGER\n"
+ " Make connection on the indicated port (default: %d)\n"
+ " -u, --url=STRING\n"
+ " Connect to this url\n"
+ " -e, --expect=STRING\n"
+ " String to expect in first line of server response (default: %s)\n"
+ " -w, --warning=INTEGER\n"
+ " Seconds necessary to result in a warning status\n"
+ " -c, --critical=INTEGER\n"
+ " Seconds necessary to result in a critical status\n"
+ " -t, --timeout=INTEGER\n"
+ " Seconds before connection attempt times out (default: %d)\n"
+ " -v, --verbose\n"
+ " Print extra information (command-line use only)\n"
+ " -h, --help\n"
+ " Print detailed help screen\n"
+ " -V, --version\n"
+ " Print version information\n\n",
+ PORT, EXPECT, DEFAULT_SOCKET_TIMEOUT);
+ support ();
+}
+
+
+
+
+
+void
+print_usage (void)
+{
+ printf
+ ("Usage: %s -H host [-e expect] [-p port] [-w warn] [-c crit]\n"
+ " [-t timeout] [-v]\n"
+ " %s --help\n"
+ " %s --version\n", PROGNAME, PROGNAME, PROGNAME);
+}
+
+
+
+
+/*
+// process command-line arguments
+int
+process_arguments (int argc, char **argv)
+{
+ int x;
+
+ // no options were supplied
+ if (argc < 2)
+ return ERROR;
+
+ // first option is always the server name/address
+ strncpy (server_address, argv[1], sizeof (server_address) - 1);
+ server_address[sizeof (server_address) - 1] = 0;
+
+ // set the host name to the server address (until its overridden)
+ strcpy (host_name, server_address);
+
+ // process all remaining arguments
+ for (x = 3; x <= argc; x++)
+ {
+
+ // we got the string to expect from the server
+ if (!strcmp (argv[x - 1], "-e"))
+ {
+ if (x < argc)
+ {
+ strncpy (server_expect, argv[x], sizeof (server_expect) - 1);
+ server_expect[sizeof (server_expect) - 1] = 0;
+ x++;
+ }
+ else
+ return ERROR;
+ }
+
+ // we got the URL to check
+ else if (!strcmp (argv[x - 1], "-u"))
+ {
+ if (x < argc)
+ {
+ strncpy (server_url, argv[x], sizeof (server_url) - 1);
+ server_url[sizeof (server_url) - 1] = 0;
+ x++;
+ }
+ else
+ return ERROR;
+ }
+
+ // we go the host name to use in the host header
+ else if (!strcmp (argv[x - 1], "-hn"))
+ {
+ if (x < argc)
+ {
+ strncpy (host_name, argv[x], sizeof (host_name) - 1);
+ host_name[sizeof (host_name) - 1] = 0;
+ x++;
+ }
+ else
+ return ERROR;
+ }
+
+ // we got the port number to use
+ else if (!strcmp (argv[x - 1], "-p"))
+ {
+ if (x < argc)
+ {
+ server_port = atoi (argv[x]);
+ x++;
+ }
+ else
+ return ERROR;
+ }
+
+ // we got the socket timeout
+ else if (!strcmp (argv[x - 1], "-to"))
+ {
+ if (x < argc)
+ {
+ socket_timeout = atoi (argv[x]);
+ if (socket_timeout <= 0)
+ return ERROR;
+ x++;
+ }
+ else
+ return ERROR;
+ }
+
+ // we got the warning threshold time
+ else if (!strcmp (argv[x - 1], "-wt"))
+ {
+ if (x < argc)
+ {
+ warning_time = atoi (argv[x]);
+ check_warning_time = TRUE;
+ x++;
+ }
+ else
+ return ERROR;
+ }
+
+ // we got the critical threshold time
+ else if (!strcmp (argv[x - 1], "-ct"))
+ {
+ if (x < argc)
+ {
+ critical_time = atoi (argv[x]);
+ check_critical_time = TRUE;
+ x++;
+ }
+ else
+ return ERROR;
+ }
+
+ // else we got something else...
+ else
+ return ERROR;
+ }
+
+ return OK;
+}
+
+ result = process_arguments (argc, argv);
+
+ if (result != OK)
+ {
+
+ printf ("Incorrect number of arguments supplied\n");
+ printf ("\n");
+ print_revision(argv[0],"$Revision$");
+ printf ("Copyright (c) 1999 Pedro Leite (leite@cic.ua.pt)\n");
+ printf ("Last Modified: 30-10-1999\n");
+ printf ("License: GPL\n");
+ printf ("\n");
+ printf ("Usage: %s <host_address> [-e expect] [-u url] [-p port] [-hn host_name] [-wt warn_time]\n",argv[0]);
+ printf(" [-ct crit_time] [-to to_sec] [-a auth]\n");
+ printf ("\n");
+ printf ("Options:\n");
+ printf (" [expect] = String to expect in first line of server response - default is \"%s\"\n", EXPECT);
+ printf (" [url] = Optional URL to GET - default is root document\n");
+ printf (" [port] = Optional port number to use - default is %d\n", PORT);
+ printf (" [host_name] = Optional host name argument to GET command - used for servers using host headers\n");
+ printf (" [warn_time] = Response time in seconds necessary to result in a warning status\n");
+ printf (" [crit_time] = Response time in seconds necessary to result in a critical status\n");
+ printf (" [to_sec] = Number of seconds before connection attempt times out - default is %d seconds\n", DEFAULT_SOCKET_TIMEOUT);
+ printf (" [auth] = Optional username:password for sites requiring basic authentication\n");
+ printf ("\n");
+ printf ("This plugin attempts to contact the REAL service on the specified host.\n");
+ printf ("If possible, supply an IP address for the host address, as this will bypass the DNS lookup.\n");
+ printf ("\n");
+
+ return STATE_UNKNOWN;
+ }
+
+*/
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