Imported Upstream version 1.4.5
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409
plugins/check_fping.c
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409
plugins/check_fping.c
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/******************************************************************************
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*
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* Nagios check_fping plugin
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*
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* License: GPL
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* Copyright (c) 1999-2006 nagios-plugins team
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*
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* Last Modified: $Date: 2006/10/19 00:25:16 $
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*
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* Description:
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*
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* This file contains the check_disk plugin
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*
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* This plugin will use the fping command to ping the specified host for a fast check
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*
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*
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* License Information:
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id: check_fping.c,v 1.27 2006/10/19 00:25:16 opensides Exp $
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******************************************************************************/
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const char *progname = "check_fping";
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const char *revision = "$Revision: 1.27 $";
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const char *copyright = "2000-2006";
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const char *email = "nagiosplug-devel@lists.sourceforge.net";
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#include "common.h"
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#include "popen.h"
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#include "netutils.h"
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#include "utils.h"
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enum {
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PACKET_COUNT = 1,
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PACKET_SIZE = 56,
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PL = 0,
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RTA = 1
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};
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int textscan (char *buf);
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int process_arguments (int, char **);
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int get_threshold (char *arg, char *rv[2]);
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void print_help (void);
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void print_usage (void);
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char *server_name = NULL;
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int packet_size = PACKET_SIZE;
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int packet_count = PACKET_COUNT;
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int verbose = FALSE;
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int cpl;
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int wpl;
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double crta;
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double wrta;
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int cpl_p = FALSE;
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int wpl_p = FALSE;
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int crta_p = FALSE;
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int wrta_p = FALSE;
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int
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main (int argc, char **argv)
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{
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/* normaly should be int result = STATE_UNKNOWN; */
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int status = STATE_UNKNOWN;
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char *server = NULL;
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char *command_line = NULL;
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char *input_buffer = NULL;
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input_buffer = malloc (MAX_INPUT_BUFFER);
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setlocale (LC_ALL, "");
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bindtextdomain (PACKAGE, LOCALEDIR);
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textdomain (PACKAGE);
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if (process_arguments (argc, argv) == ERROR)
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usage4 (_("Could not parse arguments"));
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server = strscpy (server, server_name);
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/* compose the command */
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asprintf (&command_line, "%s -b %d -c %d %s", PATH_TO_FPING,
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packet_size, packet_count, server);
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if (verbose)
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printf ("%s\n", command_line);
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/* run the command */
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child_process = spopen (command_line);
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if (child_process == NULL) {
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printf (_("Could not open pipe: %s\n"), command_line);
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return STATE_UNKNOWN;
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}
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child_stderr = fdopen (child_stderr_array[fileno (child_process)], "r");
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if (child_stderr == NULL) {
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printf (_("Could not open stderr for %s\n"), command_line);
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}
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while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process)) {
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if (verbose)
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printf ("%s", input_buffer);
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status = max_state (status, textscan (input_buffer));
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}
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/* If we get anything on STDERR, at least set warning */
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while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_stderr)) {
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status = max_state (status, STATE_WARNING);
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if (verbose)
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printf ("%s", input_buffer);
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status = max_state (status, textscan (input_buffer));
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}
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(void) fclose (child_stderr);
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/* close the pipe */
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if (spclose (child_process))
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/* need to use max_state not max */
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status = max_state (status, STATE_WARNING);
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printf ("FPING %s - %s\n", state_text (status), server_name);
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return status;
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}
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int
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textscan (char *buf)
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{
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char *rtastr = NULL;
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char *losstr = NULL;
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double loss;
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double rta;
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int status = STATE_UNKNOWN;
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if (strstr (buf, "not found")) {
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die (STATE_CRITICAL, _("FPING UNKNOW - %s not found\n"), server_name);
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}
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else if (strstr (buf, "is unreachable") || strstr (buf, "Unreachable")) {
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die (STATE_CRITICAL, _("FPING CRITICAL - %s is unreachable\n"),
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"host");
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}
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else if (strstr (buf, "is down")) {
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die (STATE_CRITICAL, _("FPING CRITICAL - %s is down\n"), server_name);
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}
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else if (strstr (buf, "is alive")) {
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status = STATE_OK;
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}
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else if (strstr (buf, "xmt/rcv/%loss") && strstr (buf, "min/avg/max")) {
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losstr = strstr (buf, "=");
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losstr = 1 + strstr (losstr, "/");
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losstr = 1 + strstr (losstr, "/");
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rtastr = strstr (buf, "min/avg/max");
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rtastr = strstr (rtastr, "=");
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rtastr = 1 + index (rtastr, '/');
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loss = strtod (losstr, NULL);
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rta = strtod (rtastr, NULL);
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if (cpl_p == TRUE && loss > cpl)
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status = STATE_CRITICAL;
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else if (crta_p == TRUE && rta > crta)
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status = STATE_CRITICAL;
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else if (wpl_p == TRUE && loss > wpl)
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status = STATE_WARNING;
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else if (wrta_p == TRUE && rta > wrta)
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status = STATE_WARNING;
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else
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status = STATE_OK;
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die (status,
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_("FPING %s - %s (loss=%.0f%%, rta=%f ms)|%s %s\n"),
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state_text (status), server_name, loss, rta,
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perfdata ("loss", (long int)loss, "%", wpl_p, wpl, cpl_p, cpl, TRUE, 0, TRUE, 100),
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fperfdata ("rta", rta/1.0e3, "s", wrta_p, wrta/1.0e3, crta_p, crta/1.0e3, TRUE, 0, FALSE, 0));
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}
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else if(strstr (buf, "xmt/rcv/%loss") ) {
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/* no min/max/avg if host was unreachable in fping v2.2.b1 */
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losstr = strstr (buf, "=");
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losstr = 1 + strstr (losstr, "/");
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losstr = 1 + strstr (losstr, "/");
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loss = strtod (losstr, NULL);
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if (atoi(losstr) == 100)
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status = STATE_CRITICAL;
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else if (cpl_p == TRUE && loss > cpl)
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status = STATE_CRITICAL;
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else if (wpl_p == TRUE && loss > wpl)
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status = STATE_WARNING;
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else
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status = STATE_OK;
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/* loss=%.0f%%;%d;%d;0;100 */
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die (status, _("FPING %s - %s (loss=%.0f%% )|%s\n"),
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state_text (status), server_name, loss ,
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perfdata ("loss", (long int)loss, "%", wpl_p, wpl, cpl_p, cpl, TRUE, 0, TRUE, 100));
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}
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else {
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status = max_state (status, STATE_WARNING);
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}
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return status;
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}
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/* process command-line arguments */
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int
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process_arguments (int argc, char **argv)
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{
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int c;
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char *rv[2];
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int option = 0;
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static struct option longopts[] = {
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{"hostname", required_argument, 0, 'H'},
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{"critical", required_argument, 0, 'c'},
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{"warning", required_argument, 0, 'w'},
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{"bytes", required_argument, 0, 'b'},
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{"number", required_argument, 0, 'n'},
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{"verbose", no_argument, 0, 'v'},
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{"version", no_argument, 0, 'V'},
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{"help", no_argument, 0, 'h'},
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{0, 0, 0, 0}
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};
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rv[PL] = NULL;
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rv[RTA] = NULL;
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if (argc < 2)
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return ERROR;
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if (!is_option (argv[1])) {
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server_name = argv[1];
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argv[1] = argv[0];
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argv = &argv[1];
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argc--;
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}
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while (1) {
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c = getopt_long (argc, argv, "+hVvH:c:w:b:n:", longopts, &option);
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if (c == -1 || c == EOF || c == 1)
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break;
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switch (c) {
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case '?': /* print short usage statement if args not parsable */
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usage2 (_("Unknown argument"), optarg);
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case 'h': /* help */
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print_help ();
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exit (STATE_OK);
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case 'V': /* version */
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print_revision (progname, revision);
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exit (STATE_OK);
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case 'v': /* verbose mode */
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verbose = TRUE;
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break;
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case 'H': /* hostname */
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if (is_host (optarg) == FALSE) {
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usage2 (_("Invalid hostname/address"), optarg);
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}
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server_name = strscpy (server_name, optarg);
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break;
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case 'c':
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get_threshold (optarg, rv);
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if (rv[RTA]) {
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crta = strtod (rv[RTA], NULL);
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crta_p = TRUE;
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rv[RTA] = NULL;
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}
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if (rv[PL]) {
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cpl = atoi (rv[PL]);
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cpl_p = TRUE;
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rv[PL] = NULL;
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}
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break;
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case 'w':
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get_threshold (optarg, rv);
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if (rv[RTA]) {
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wrta = strtod (rv[RTA], NULL);
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wrta_p = TRUE;
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rv[RTA] = NULL;
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}
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if (rv[PL]) {
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wpl = atoi (rv[PL]);
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wpl_p = TRUE;
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rv[PL] = NULL;
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}
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break;
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case 'b': /* bytes per packet */
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if (is_intpos (optarg))
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packet_size = atoi (optarg);
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else
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usage (_("Packet size must be a positive integer"));
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break;
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case 'n': /* number of packets */
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if (is_intpos (optarg))
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packet_count = atoi (optarg);
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else
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usage (_("Packet count must be a positive integer"));
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break;
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}
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}
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if (server_name == NULL)
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usage4 (_("Hostname was not supplied"));
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return OK;
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}
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int
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get_threshold (char *arg, char *rv[2])
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{
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char *arg1 = NULL;
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char *arg2 = NULL;
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arg1 = strscpy (arg1, arg);
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if (strpbrk (arg1, ",:"))
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arg2 = 1 + strpbrk (arg1, ",:");
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if (arg2) {
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arg1[strcspn (arg1, ",:")] = 0;
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if (strstr (arg1, "%") && strstr (arg2, "%"))
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die (STATE_UNKNOWN,
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_("%s: Only one threshold may be packet loss (%s)\n"), progname,
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arg);
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if (!strstr (arg1, "%") && !strstr (arg2, "%"))
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die (STATE_UNKNOWN,
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_("%s: Only one threshold must be packet loss (%s)\n"),
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progname, arg);
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}
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if (arg2 && strstr (arg2, "%")) {
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rv[PL] = arg2;
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rv[RTA] = arg1;
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}
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else if (arg2) {
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rv[PL] = arg1;
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rv[RTA] = arg2;
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}
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else if (strstr (arg1, "%")) {
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rv[PL] = arg1;
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}
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else {
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rv[RTA] = arg1;
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}
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return OK;
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}
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void
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print_help (void)
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{
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print_revision (progname, revision);
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printf ("Copyright (c) 1999 Didi Rieder <adrieder@sbox.tu-graz.ac.at>\n");
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printf (COPYRIGHT, copyright, email);
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printf ("%s\n", _("This plugin will use the fping command to ping the specified host for a fast check"));
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printf ("%s\n", _("Note that it is necessary to set the suid flag on fping."));
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printf ("\n\n");
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print_usage ();
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printf (_(UT_HELP_VRSN));
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printf (" %s\n", "-H, --hostname=HOST");
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printf (" %s\n", _("name or IP Address of host to ping (IP Address bypasses name lookup, reducing system load)"));
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printf (" %s\n", "-w, --warning=THRESHOLD");
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printf (" %s\n", _("warning threshold pair"));
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printf (" %s\n", "-c, --critical=THRESHOLD");
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printf (" %s\n", _("critical threshold pair"));
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printf (" %s\n", "-b, --bytes=INTEGER");
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printf (" %s\n", _("size of ICMP packet (default: %d)"),PACKET_SIZE);
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printf (" %s\n", "-n, --number=INTEGER");
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printf (" %s\n", _("number of ICMP packets to send (default: %d)"),PACKET_COUNT);
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printf (_(UT_VERBOSE));
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printf ("\n");
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printf (" %s\n", _("THRESHOLD is <rta>,<pl>%% where <rta> is the round trip average travel time (ms)"));
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printf (" %s\n", _("which triggers a WARNING or CRITICAL state, and <pl> is the percentage of"));
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printf (" %s\n", _("packet loss to trigger an alarm state."));
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printf (_(UT_SUPPORT));
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}
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void
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print_usage (void)
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{
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printf (_("Usage:"));
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printf (" %s <host_address> -w limit -c limit [-b size] [-n number]\n", progname);
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}
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