Adding upstream version 2.3.5.upstream/2.3.5upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 620 insertions, 0 deletions

diff --git a/plugins/check_ping.c b/plugins/check_ping.c
new file mode 100644
index 0000000..741f732
--- /dev/null
+++ b/plugins/check_ping.c
@@ -0,0 +1,620 @@
+/*****************************************************************************
+* 
+* Monitoring check_ping plugin
+* 
+* License: GPL
+* Copyright (c) 2000-2007 Monitoring Plugins Development Team
+* 
+* Description:
+* 
+* This file contains the check_ping plugin
+* 
+* Use the ping program to check connection statistics for a remote host.
+* 
+* 
+* 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 3 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, see <http://www.gnu.org/licenses/>.
+* 
+* 
+*****************************************************************************/
+
+const char *progname = "check_ping";
+const char *copyright = "2000-2007";
+const char *email = "devel@monitoring-plugins.org";
+
+#include "common.h"
+#include "netutils.h"
+#include "popen.h"
+#include "utils.h"
+
+#include <signal.h>
+
+#define WARN_DUPLICATES "DUPLICATES FOUND! "
+#define UNKNOWN_TRIP_TIME -1.0	/* -1 seconds */
+
+enum {
+	UNKNOWN_PACKET_LOSS = 200,    /* 200% */
+	DEFAULT_MAX_PACKETS = 5       /* default no. of ICMP ECHO packets */
+};
+
+int process_arguments (int, char **);
+int get_threshold (char *, float *, int *);
+int validate_arguments (void);
+int run_ping (const char *cmd, const char *addr);
+int error_scan (char buf[MAX_INPUT_BUFFER], const char *addr);
+void print_usage (void);
+void print_help (void);
+
+int display_html = FALSE;
+int wpl = UNKNOWN_PACKET_LOSS;
+int cpl = UNKNOWN_PACKET_LOSS;
+float wrta = UNKNOWN_TRIP_TIME;
+float crta = UNKNOWN_TRIP_TIME;
+char **addresses = NULL;
+int n_addresses = 0;
+int max_addr = 1;
+int max_packets = -1;
+int verbose = 0;
+
+float rta = UNKNOWN_TRIP_TIME;
+int pl = UNKNOWN_PACKET_LOSS;
+
+char *warn_text;
+
+
+
+int
+main (int argc, char **argv)
+{
+	char *cmd = NULL;
+	char *rawcmd = NULL;
+	int result = STATE_UNKNOWN;
+	int this_result = STATE_UNKNOWN;
+	int i;
+
+	setlocale (LC_ALL, "");
+	setlocale (LC_NUMERIC, "C");
+	bindtextdomain (PACKAGE, LOCALEDIR);
+	textdomain (PACKAGE);
+
+	addresses = malloc (sizeof(char*) * max_addr);
+	addresses[0] = NULL;
+
+	/* Parse extra opts if any */
+	argv=np_extra_opts (&argc, argv, progname);
+
+	if (process_arguments (argc, argv) == ERROR)
+		usage4 (_("Could not parse arguments"));
+
+	/* Set signal handling and alarm */
+	if (signal (SIGALRM, popen_timeout_alarm_handler) == SIG_ERR) {
+		usage4 (_("Cannot catch SIGALRM"));
+	}
+
+	/* If ./configure finds ping has timeout values, set plugin alarm slightly
+	 * higher so that we can use response from command line ping */
+#if defined(PING_PACKETS_FIRST) && defined(PING_HAS_TIMEOUT)
+	alarm (timeout_interval + 1);
+#else
+	alarm (timeout_interval);
+#endif
+
+	for (i = 0 ; i < n_addresses ; i++) {
+
+#ifdef PING6_COMMAND
+		if (address_family != AF_INET && is_inet6_addr(addresses[i]))
+			rawcmd = strdup(PING6_COMMAND);
+		else
+			rawcmd = strdup(PING_COMMAND);
+#else
+		rawcmd = strdup(PING_COMMAND);
+#endif
+
+		/* does the host address of number of packets argument come first? */
+#ifdef PING_PACKETS_FIRST
+# ifdef PING_HAS_TIMEOUT
+		xasprintf (&cmd, rawcmd, timeout_interval, max_packets, addresses[i]);
+# else
+		xasprintf (&cmd, rawcmd, max_packets, addresses[i]);
+# endif
+#else
+		xasprintf (&cmd, rawcmd, addresses[i], max_packets);
+#endif
+
+		if (verbose >= 2)
+			printf ("CMD: %s\n", cmd);
+
+		/* run the command */
+		this_result = run_ping (cmd, addresses[i]);
+
+		if (pl == UNKNOWN_PACKET_LOSS || rta < 0.0) {
+			printf ("%s\n", cmd);
+			die (STATE_UNKNOWN,
+				_("CRITICAL - Could not interpret output from ping command\n"));
+		}
+
+		if (pl >= cpl || rta >= crta || rta < 0)
+			this_result = STATE_CRITICAL;
+		else if (pl >= wpl || rta >= wrta)
+			this_result = STATE_WARNING;
+		else if (pl >= 0 && rta >= 0)
+			this_result = max_state (STATE_OK, this_result);
+
+		if (n_addresses > 1 && this_result != STATE_UNKNOWN)
+			die (STATE_OK, "%s is alive\n", addresses[i]);
+
+		if (display_html == TRUE)
+			printf ("<A HREF='%s/traceroute.cgi?%s'>", CGIURL, addresses[i]);
+		if (pl == 100)
+			printf (_("PING %s - %sPacket loss = %d%%"), state_text (this_result), warn_text,
+							pl);
+		else
+			printf (_("PING %s - %sPacket loss = %d%%, RTA = %2.2f ms"),
+							state_text (this_result), warn_text, pl, rta);
+		if (display_html == TRUE)
+			printf ("</A>");
+
+		/* Print performance data */
+		if (pl != 100) {
+			printf("|%s", fperfdata ("rta", (double) rta, "ms",
+									  wrta>0?TRUE:FALSE, wrta,
+									  crta>0?TRUE:FALSE, crta,
+									  TRUE, 0, FALSE, 0));
+		} else {
+			printf("| rta=U;%f;%f;;", wrta, crta);
+		}
+		printf(" %s\n", perfdata ("pl", (long) pl, "%",
+		                          wpl>0?TRUE:FALSE, wpl,
+		                          cpl>0?TRUE:FALSE, cpl,
+		                          TRUE, 0, FALSE, 0));
+
+		if (verbose >= 2)
+			printf ("%f:%d%% %f:%d%%\n", wrta, wpl, crta, cpl);
+
+		result = max_state (result, this_result);
+		free (rawcmd);
+		free (cmd);
+	}
+
+	return result;
+}
+
+
+
+/* process command-line arguments */
+int
+process_arguments (int argc, char **argv)
+{
+	int c = 1;
+	char *ptr;
+
+	int option = 0;
+	static struct option longopts[] = {
+		STD_LONG_OPTS,
+		{"packets", required_argument, 0, 'p'},
+		{"nohtml", no_argument, 0, 'n'},
+		{"link", no_argument, 0, 'L'},
+		{"use-ipv4", no_argument, 0, '4'},
+		{"use-ipv6", no_argument, 0, '6'},
+		{0, 0, 0, 0}
+	};
+
+	if (argc < 2)
+		return ERROR;
+
+	for (c = 1; c < argc; c++) {
+		if (strcmp ("-to", argv[c]) == 0)
+			strcpy (argv[c], "-t");
+		if (strcmp ("-nohtml", argv[c]) == 0)
+			strcpy (argv[c], "-n");
+	}
+
+	while (1) {
+		c = getopt_long (argc, argv, "VvhnL46t:c:w:H:p:", longopts, &option);
+
+		if (c == -1 || c == EOF)
+			break;
+
+		switch (c) {
+		case '?':	/* usage */
+			usage5 ();
+		case 'h':	/* help */
+			print_help ();
+			exit (STATE_UNKNOWN);
+			break;
+		case 'V':	/* version */
+			print_revision (progname, NP_VERSION);
+			exit (STATE_UNKNOWN);
+			break;
+		case 't':	/* timeout period */
+			timeout_interval = atoi (optarg);
+			break;
+		case 'v':	/* verbose mode */
+			verbose++;
+			break;
+		case '4':	/* IPv4 only */
+			address_family = AF_INET;
+			break;
+		case '6':	/* IPv6 only */
+#ifdef USE_IPV6
+			address_family = AF_INET6;
+#else
+			usage (_("IPv6 support not available\n"));
+#endif
+			break;
+		case 'H':	/* hostname */
+			ptr=optarg;
+			while (1) {
+				n_addresses++;
+				if (n_addresses > max_addr) {
+					max_addr *= 2;
+					addresses = realloc (addresses, sizeof(char*) * max_addr);
+					if (addresses == NULL)
+						die (STATE_UNKNOWN, _("Could not realloc() addresses\n"));
+				}
+				addresses[n_addresses-1] = ptr;
+				if ((ptr = index (ptr, ','))) {
+					strcpy (ptr, "");
+					ptr += sizeof(char);
+				} else {
+					break;
+				}
+			}
+			break;
+		case 'p':	/* number of packets to send */
+			if (is_intnonneg (optarg))
+				max_packets = atoi (optarg);
+			else
+				usage2 (_("<max_packets> (%s) must be a non-negative number\n"), optarg);
+			break;
+		case 'n':	/* no HTML */
+			display_html = FALSE;
+			break;
+		case 'L':	/* show HTML */
+			display_html = TRUE;
+			break;
+		case 'c':
+			get_threshold (optarg, &crta, &cpl);
+			break;
+		case 'w':
+			get_threshold (optarg, &wrta, &wpl);
+			break;
+		}
+	}
+
+	c = optind;
+	if (c == argc)
+		return validate_arguments ();
+
+	if (addresses[0] == NULL) {
+		if (is_host (argv[c]) == FALSE) {
+			usage2 (_("Invalid hostname/address"), argv[c]);
+		} else {
+			addresses[0] = argv[c++];
+			n_addresses++;
+			if (c == argc)
+				return validate_arguments ();
+		}
+	}
+
+	if (wpl == UNKNOWN_PACKET_LOSS) {
+		if (is_intpercent (argv[c]) == FALSE) {
+			printf (_("<wpl> (%s) must be an integer percentage\n"), argv[c]);
+			return ERROR;
+		} else {
+			wpl = atoi (argv[c++]);
+			if (c == argc)
+				return validate_arguments ();
+		}
+	}
+
+	if (cpl == UNKNOWN_PACKET_LOSS) {
+		if (is_intpercent (argv[c]) == FALSE) {
+			printf (_("<cpl> (%s) must be an integer percentage\n"), argv[c]);
+			return ERROR;
+		} else {
+			cpl = atoi (argv[c++]);
+			if (c == argc)
+				return validate_arguments ();
+		}
+	}
+
+	if (wrta < 0.0) {
+		if (is_negative (argv[c])) {
+			printf (_("<wrta> (%s) must be a non-negative number\n"), argv[c]);
+			return ERROR;
+		} else {
+			wrta = atof (argv[c++]);
+			if (c == argc)
+				return validate_arguments ();
+		}
+	}
+
+	if (crta < 0.0) {
+		if (is_negative (argv[c])) {
+			printf (_("<crta> (%s) must be a non-negative number\n"), argv[c]);
+			return ERROR;
+		} else {
+			crta = atof (argv[c++]);
+			if (c == argc)
+				return validate_arguments ();
+		}
+	}
+
+	if (max_packets == -1) {
+		if (is_intnonneg (argv[c])) {
+			max_packets = atoi (argv[c++]);
+		} else {
+			printf (_("<max_packets> (%s) must be a non-negative number\n"), argv[c]);
+			return ERROR;
+		}
+	}
+
+	return validate_arguments ();
+}
+
+
+
+int
+get_threshold (char *arg, float *trta, int *tpl)
+{
+	if (is_intnonneg (arg) && sscanf (arg, "%f", trta) == 1)
+		return OK;
+	else if (strpbrk (arg, ",:") && strstr (arg, "%") && sscanf (arg, "%f%*[:,]%d%%", trta, tpl) == 2)
+		return OK;
+	else if (strstr (arg, "%") && sscanf (arg, "%d%%", tpl) == 1)
+		return OK;
+
+	usage2 (_("%s: Warning threshold must be integer or percentage!\n\n"), arg);
+	return STATE_UNKNOWN;
+}
+
+
+
+int
+validate_arguments ()
+{
+	float max_seconds;
+	int i;
+
+	if (wrta < 0.0) {
+		printf (_("<wrta> was not set\n"));
+		return ERROR;
+	}
+	else if (crta < 0.0) {
+		printf (_("<crta> was not set\n"));
+		return ERROR;
+	}
+	else if (wpl == UNKNOWN_PACKET_LOSS) {
+		printf (_("<wpl> was not set\n"));
+		return ERROR;
+	}
+	else if (cpl == UNKNOWN_PACKET_LOSS) {
+		printf (_("<cpl> was not set\n"));
+		return ERROR;
+	}
+	else if (wrta > crta) {
+		printf (_("<wrta> (%f) cannot be larger than <crta> (%f)\n"), wrta, crta);
+		return ERROR;
+	}
+	else if (wpl > cpl) {
+		printf (_("<wpl> (%d) cannot be larger than <cpl> (%d)\n"), wpl, cpl);
+		return ERROR;
+	}
+
+	if (max_packets == -1)
+		max_packets = DEFAULT_MAX_PACKETS;
+
+	max_seconds = crta / 1000.0 * max_packets + max_packets;
+	if (max_seconds > timeout_interval)
+		timeout_interval = (int)max_seconds;
+
+	for (i=0; i<n_addresses; i++) {
+		if (is_host(addresses[i]) == FALSE)
+			usage2 (_("Invalid hostname/address"), addresses[i]);
+	}
+
+	if (n_addresses == 0) {
+		usage (_("You must specify a server address or host name"));
+	}
+
+	return OK;
+}
+
+
+
+int
+run_ping (const char *cmd, const char *addr)
+{
+	char buf[MAX_INPUT_BUFFER];
+	int result = STATE_UNKNOWN;
+	int match;
+
+	if ((child_process = spopen (cmd)) == NULL)
+		die (STATE_UNKNOWN, _("Could not open pipe: %s\n"), cmd);
+
+	child_stderr = fdopen (child_stderr_array[fileno (child_process)], "r");
+	if (child_stderr == NULL)
+		printf (_("Cannot open stderr for %s\n"), cmd);
+
+	while (fgets (buf, MAX_INPUT_BUFFER - 1, child_process)) {
+
+		if (verbose >= 3)
+			printf("Output: %s", buf);
+
+		result = max_state (result, error_scan (buf, addr));
+
+		/* get the percent loss statistics */
+		match = 0;
+		if((sscanf(buf,"%*d packets transmitted, %*d packets received, +%*d errors, %d%% packet loss%n",&pl,&match) && match) ||
+			 (sscanf(buf,"%*d packets transmitted, %*d packets received, +%*d duplicates, %d%% packet loss%n",&pl,&match) && match) ||
+			 (sscanf(buf,"%*d packets transmitted, %*d received, +%*d duplicates, %d%% packet loss%n",&pl,&match) && match) ||
+			 (sscanf(buf,"%*d packets transmitted, %*d packets received, %d%% packet loss%n",&pl,&match) && match) ||
+			 (sscanf(buf,"%*d packets transmitted, %*d packets received, %d%% loss, time%n",&pl,&match) && match) ||
+			 (sscanf(buf,"%*d packets transmitted, %*d received, %d%% loss, time%n",&pl,&match) && match) ||
+			 (sscanf(buf,"%*d packets transmitted, %*d received, %d%% packet loss, time%n",&pl,&match) && match) ||
+			 (sscanf(buf,"%*d packets transmitted, %*d received, +%*d errors, %d%% packet loss%n",&pl,&match) && match) ||
+			 (sscanf(buf,"%*d packets transmitted %*d received, +%*d errors, %d%% packet loss%n",&pl,&match) && match) ||
+			 (sscanf(buf,"%*[^(](%d%% %*[^)])%n",&pl,&match) && match)
+			 )
+			continue;
+
+		/* get the round trip average */
+		else
+			if((sscanf(buf,"round-trip min/avg/max = %*f/%f/%*f%n",&rta,&match) && match) ||
+				 (sscanf(buf,"round-trip min/avg/max/mdev = %*f/%f/%*f/%*f%n",&rta,&match) && match) ||
+				 (sscanf(buf,"round-trip min/avg/max/sdev = %*f/%f/%*f/%*f%n",&rta,&match) && match) ||
+				 (sscanf(buf,"round-trip min/avg/max/stddev = %*f/%f/%*f/%*f%n",&rta,&match) && match) ||
+				 (sscanf(buf,"round-trip min/avg/max/std-dev = %*f/%f/%*f/%*f%n",&rta,&match) && match) ||
+				 (sscanf(buf,"round-trip (ms) min/avg/max = %*f/%f/%*f%n",&rta,&match) && match) ||
+				 (sscanf(buf,"round-trip (ms) min/avg/max/stddev = %*f/%f/%*f/%*f%n",&rta,&match) && match) ||
+				 (sscanf(buf,"rtt min/avg/max/mdev = %*f/%f/%*f/%*f ms%n",&rta,&match) && match) ||
+				 (sscanf(buf, "%*[^=] = %*fms, %*[^=] = %*fms, %*[^=] = %fms%n", &rta, &match) && match)
+				 )
+			continue;
+	}
+
+	/* this is needed because there is no rta if all packets are lost */
+	if (pl == 100)
+		rta = crta;
+
+	/* check stderr, setting at least WARNING if there is output here */
+	/* Add warning into warn_text */
+	while (fgets (buf, MAX_INPUT_BUFFER - 1, child_stderr)) {
+		if (
+			! strstr(buf,"WARNING - no SO_TIMESTAMP support, falling back to SIOCGSTAMP")
+			&& ! strstr(buf,"Warning: time of day goes back")
+
+		) {
+			if (verbose >= 3) {
+				printf("Got stderr: %s", buf);
+			}
+			if ((result=error_scan(buf, addr)) == STATE_OK) {
+				result = STATE_WARNING;
+				if (warn_text == NULL) {
+					warn_text = strdup(_("System call sent warnings to stderr "));
+				} else {
+					xasprintf(&warn_text, "%s %s", warn_text, _("System call sent warnings to stderr "));
+				}
+			}
+		}
+	}
+
+	(void) fclose (child_stderr);
+
+
+	spclose (child_process);
+
+	if (warn_text == NULL)
+		warn_text = strdup("");
+
+	return result;
+}
+
+
+
+int
+error_scan (char buf[MAX_INPUT_BUFFER], const char *addr)
+{
+	if (strstr (buf, "Network is unreachable") ||
+		strstr (buf, "Destination Net Unreachable") ||
+		strstr (buf, "No route")
+		)
+		die (STATE_CRITICAL, _("CRITICAL - Network Unreachable (%s)\n"), addr);
+	else if (strstr (buf, "Destination Host Unreachable") || strstr(buf, "Address unreachable"))
+		die (STATE_CRITICAL, _("CRITICAL - Host Unreachable (%s)\n"), addr);
+	else if (strstr (buf, "Destination Port Unreachable") || strstr(buf, "Port unreachable"))
+		die (STATE_CRITICAL, _("CRITICAL - Bogus ICMP: Port Unreachable (%s)\n"), addr);
+	else if (strstr (buf, "Destination Protocol Unreachable"))
+		die (STATE_CRITICAL, _("CRITICAL - Bogus ICMP: Protocol Unreachable (%s)\n"), addr);
+	else if (strstr (buf, "Destination Net Prohibited"))
+		die (STATE_CRITICAL, _("CRITICAL - Network Prohibited (%s)\n"), addr);
+	else if (strstr (buf, "Destination Host Prohibited"))
+		die (STATE_CRITICAL, _("CRITICAL - Host Prohibited (%s)\n"), addr);
+	else if (strstr (buf, "Packet filtered") || strstr(buf, "Administratively prohibited"))
+		die (STATE_CRITICAL, _("CRITICAL - Packet Filtered (%s)\n"), addr);
+	else if (strstr (buf, "unknown host" ))
+		die (STATE_CRITICAL, _("CRITICAL - Host not found (%s)\n"), addr);
+	else if (strstr (buf, "Time to live exceeded") || strstr(buf, "Time exceeded"))
+		die (STATE_CRITICAL, _("CRITICAL - Time to live exceeded (%s)\n"), addr);
+	else if (strstr (buf, "Destination unreachable: "))
+		die (STATE_CRITICAL, _("CRITICAL - Destination Unreachable (%s)\n"), addr);
+
+	if (strstr (buf, "(DUP!)") || strstr (buf, "DUPLICATES FOUND")) {
+		if (warn_text == NULL)
+			warn_text = strdup (_(WARN_DUPLICATES));
+		else if (! strstr (warn_text, _(WARN_DUPLICATES)) &&
+				xasprintf (&warn_text, "%s %s", warn_text, _(WARN_DUPLICATES)) == -1)
+			die (STATE_UNKNOWN, _("Unable to realloc warn_text\n"));
+		return (STATE_WARNING);
+	}
+
+	return (STATE_OK);
+}
+
+
+
+void
+print_help (void)
+{
+	print_revision (progname, NP_VERSION);
+
+	printf ("Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>\n");
+	printf (COPYRIGHT, copyright, email);
+
+	printf (_("Use ping to check connection statistics for a remote host."));
+
+	printf ("\n\n");
+
+	print_usage ();
+
+	printf (UT_HELP_VRSN);
+	printf (UT_EXTRA_OPTS);
+
+	printf (UT_IPv46);
+
+	printf (" %s\n", "-H, --hostname=HOST");
+	printf ("    %s\n", _("host to ping"));
+	printf (" %s\n", "-w, --warning=THRESHOLD");
+	printf ("    %s\n", _("warning threshold pair"));
+	printf (" %s\n", "-c, --critical=THRESHOLD");
+	printf ("    %s\n", _("critical threshold pair"));
+	printf (" %s\n", "-p, --packets=INTEGER");
+	printf ("    %s ", _("number of ICMP ECHO packets to send"));
+	printf (_("(Default: %d)\n"), DEFAULT_MAX_PACKETS);
+	printf (" %s\n", "-L, --link");
+	printf ("    %s\n", _("show HTML in the plugin output (obsoleted by urlize)"));
+
+	printf (UT_CONN_TIMEOUT, DEFAULT_SOCKET_TIMEOUT);
+
+	printf ("\n");
+	printf ("%s\n", _("THRESHOLD is <rta>,<pl>% where <rta> is the round trip average travel"));
+	printf ("%s\n", _("time (ms) which triggers a WARNING or CRITICAL state, and <pl> is the"));
+	printf ("%s\n", _("percentage of packet loss to trigger an alarm state."));
+
+	printf ("\n");
+	printf ("%s\n", _("This plugin uses the ping command to probe the specified host for packet loss"));
+	printf ("%s\n", _("(percentage) and round trip average (milliseconds). It can produce HTML output"));
+	printf ("%s\n", _("linking to a traceroute CGI contributed by Ian Cass. The CGI can be found in"));
+	printf ("%s\n", _("the contrib area of the downloads section at http://www.nagios.org/"));
+
+	printf (UT_SUPPORT);
+}
+
+void
+print_usage (void)
+{
+	printf ("%s\n", _("Usage:"));
+	printf ("%s -H <host_address> -w <wrta>,<wpl>%% -c <crta>,<cpl>%%\n", progname);
+	printf (" [-p packets] [-t timeout] [-4|-6]\n");
+}