Initial revision

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@2 f882894a-f735-0410-b71e-b25c423dba1c

1 files changed, 661 insertions, 0 deletions

diff --git a/plugins/check_real.c b/plugins/check_real.c
new file mode 100644
index 00000000..ba746b81
--- /dev/null
+++ b/plugins/check_real.c
@@ -0,0 +1,661 @@
+/*****************************************************************************
+*
+* 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;
+    }
+
+*/