Initial revision

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

1 files changed, 340 insertions, 0 deletions

diff --git a/plugins/check_imap.c b/plugins/check_imap.c
new file mode 100644
index 00000000..5ec0439b
--- /dev/null
+++ b/plugins/check_imap.c
@@ -0,0 +1,340 @@
+/******************************************************************************
+*
+* CHECK_IMAP.C
+*
+* Program: IMAP4 plugin for Nagios
+* License: GPL
+* Copyright (c) 1999 Tom Shields (tom.shields@basswood.com)
+*
+* $Id$
+*
+* Description:
+*
+* This plugin will attempt to open an IMAP 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.
+*
+* Modifications:
+* 04-13-1999 Tom Shields
+*	Initial code
+* 08-18-1999 Ethan Galstad <nagios@nagios.org>
+*	Modified code to work with common plugin functions, added socket
+*	timeout, string * length checking
+* 09-19-1999 Ethan Galstad <nagios@nagios.org>
+*	Changed expect string from "+OK" to "* OK" and default port to 143
+*****************************************************************************/
+
+#include "config.h"
+#include "common.h"
+#include "netutils.h"
+#include "utils.h"
+
+#define PROGNAME "check_imap"
+
+#define PORT   143
+#define EXPECT "* OK"
+#define QUIT   "a1 LOGOUT\n"
+
+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 *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];
+
+	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);
+
+	/* try to connect to the host at the given port number */
+	time (&start_time);
+	result = my_tcp_connect (server_address, server_port, &sd);
+
+	/* we connected, so close connection before exiting */
+	if (result == STATE_OK) {
+
+		/* watch for the IMAP connection string */
+		result = recv (sd, buffer, MAX_INPUT_BUFFER - 1, 0);
+
+		/* strip carriange returns */
+		strip (buffer);
+
+		/* return a WARNING status if we couldn't read any data */
+		if (result == -1) {
+			printf ("recv() failed\n");
+			result = STATE_WARNING;
+		}
+
+		else {
+
+			/* make sure we find the response we are looking for */
+			if (!strstr (buffer, server_expect)) {
+				if (server_port == server_port)
+					printf ("Invalid IMAP response received from host\n");
+				else
+					printf ("Invalid IMAP response received from host on port %d\n",
+									server_port);
+				result = STATE_WARNING;
+			}
+
+			else {
+				time (&end_time);
+				printf ("IMAP ok - %d second response time\n",
+								(int) (end_time - start_time));
+				result = STATE_OK;
+			}
+		}
+
+		/* close the connection */
+		send (sd, QUIT, strlen (QUIT), 0);
+		close (sd);
+	}
+
+	/* reset the alarm handler */
+	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_address == NULL)
+		server_address = strscpy (NULL, "127.0.0.1");
+
+	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'},
+		{"expect", required_argument, 0, 'e'},
+		{"critical", required_argument, 0, 'c'},
+		{"warning", required_argument, 0, 'w'},
+		{"port", required_argument, 0, 'P'},
+		{"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, "+hVvt:p:e:c:w:H:", long_options,
+									 &option_index);
+#else
+		c = getopt (argc, argv, "+?hVvt:p:e:c:w:H:");
+#endif
+
+		i++;
+
+		if (c == -1 || c == EOF || c == 1)
+			break;
+
+		switch (c) {
+		case 't':
+		case 'p':
+		case 'e':
+		case 'c':
+		case 'w':
+		case 'H':
+			i++;
+		}
+
+		switch (c) {
+		case 'H':									/* hostname */
+			if (is_host (optarg)) {
+				server_address = optarg;
+			}
+			else {
+				usage ("Invalid host name\n");
+			}
+			break;
+		case 'p':									/* port */
+			if (is_intpos (optarg)) {
+				server_port = atoi (optarg);
+			}
+			else {
+				usage ("Server port must be a positive integer\n");
+			}
+			break;
+		case 'e':									/* username */
+			server_expect = optarg;
+			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 '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 '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 Tom Shields/Karl DeBisschop\n\n"
+		 "This plugin tests the IMAP4 service on the specified host.\n\n");
+	print_usage ();
+	printf
+		("\nOptions:\n"
+		 " -H, --hostname=STRING or IPADDRESS\n"
+		 "   Check server on the indicated host\n"
+		 " -p, --port=INTEGER\n"
+		 "   Make connection on the indicated port (default: %d)\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);
+}