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pkg-monitoring-plugins/plugins/check_ups.c

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/*****************************************************************************
*
* Nagios check_ups plugin
*
* License: GPL
* Copyright (c) 2000 Tom Shields
* 2004 Alain Richard <alain.richard@equation.fr>
* 2004 Arnaud Quette <arnaud.quette@mgeups.com>
* Copyright (c) 2002-2007 Nagios Plugins Development Team
*
* Last Modified: $Date: 2008-05-07 11:02:42 +0100 (Wed, 07 May 2008) $
*
* Description:
*
* This file contains Network UPS Tools plugin for Nagios
*
* This plugin tests the UPS service on the specified host.Network UPS Tools
* from www.networkupstools.org must be running for thisplugin to work.
*
*
* 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/>.
*
* $Id: check_ups.c 1991 2008-05-07 10:02:42Z dermoth $
*
*****************************************************************************/
const char *progname = "check_ups";
const char *revision = "$Revision: 1991 $";
const char *copyright = "2000-2007";
const char *email = "nagiosplug-devel@lists.sourceforge.net";
#include "common.h"
#include "netutils.h"
#include "utils.h"
enum {
PORT = 3493
};
#define CHECK_NONE 0
#define UPS_NONE 0 /* no supported options */
#define UPS_UTILITY 1 /* supports utility line voltage */
#define UPS_BATTPCT 2 /* supports percent battery remaining */
#define UPS_STATUS 4 /* supports UPS status */
#define UPS_TEMP 8 /* supports UPS temperature */
#define UPS_LOADPCT 16 /* supports load percent */
#define UPSSTATUS_NONE 0
#define UPSSTATUS_OFF 1
#define UPSSTATUS_OL 2
#define UPSSTATUS_OB 4
#define UPSSTATUS_LB 8
#define UPSSTATUS_CAL 16
#define UPSSTATUS_RB 32 /*Replace Battery */
#define UPSSTATUS_BYPASS 64
#define UPSSTATUS_OVER 128
#define UPSSTATUS_TRIM 256
#define UPSSTATUS_BOOST 512
#define UPSSTATUS_CHRG 1024
#define UPSSTATUS_DISCHRG 2048
#define UPSSTATUS_UNKOWN 4096
enum { NOSUCHVAR = ERROR-1 };
int server_port = PORT;
char *server_address;
char *ups_name = NULL;
double warning_value = 0.0;
double critical_value = 0.0;
int check_warn = FALSE;
int check_crit = FALSE;
int check_variable = UPS_NONE;
int supported_options = UPS_NONE;
int status = UPSSTATUS_NONE;
double ups_utility_voltage = 0.0;
double ups_battery_percent = 0.0;
double ups_load_percent = 0.0;
double ups_temperature = 0.0;
char *ups_status;
int temp_output_c = 0;
int determine_status (void);
int get_ups_variable (const char *, char *, size_t);
int process_arguments (int, char **);
int validate_arguments (void);
void print_help (void);
void print_usage (void);
int
main (int argc, char **argv)
{
int result = STATE_UNKNOWN;
char *message;
char *data;
char *tunits;
char temp_buffer[MAX_INPUT_BUFFER];
double ups_utility_deviation = 0.0;
int res;
setlocale (LC_ALL, "");
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
ups_status = strdup ("N/A");
data = strdup ("");
message = strdup ("");
/* Parse extra opts if any */
argv=np_extra_opts (&argc, argv, progname);
if (process_arguments (argc, argv) == ERROR)
usage4 (_("Could not parse arguments"));
/* initialize alarm signal handling */
signal (SIGALRM, socket_timeout_alarm_handler);
/* set socket timeout */
alarm (socket_timeout);
/* get the ups status if possible */
if (determine_status () != OK)
return STATE_CRITICAL;
if (supported_options & UPS_STATUS) {
ups_status = strdup ("");
result = STATE_OK;
if (status & UPSSTATUS_OFF) {
asprintf (&ups_status, "Off");
result = STATE_CRITICAL;
}
else if ((status & (UPSSTATUS_OB | UPSSTATUS_LB)) ==
(UPSSTATUS_OB | UPSSTATUS_LB)) {
asprintf (&ups_status, _("On Battery, Low Battery"));
result = STATE_CRITICAL;
}
else {
if (status & UPSSTATUS_OL) {
asprintf (&ups_status, "%s%s", ups_status, _("Online"));
}
if (status & UPSSTATUS_OB) {
asprintf (&ups_status, "%s%s", ups_status, _("On Battery"));
result = STATE_WARNING;
}
if (status & UPSSTATUS_LB) {
asprintf (&ups_status, "%s%s", ups_status, _(", Low Battery"));
result = STATE_WARNING;
}
if (status & UPSSTATUS_CAL) {
asprintf (&ups_status, "%s%s", ups_status, _(", Calibrating"));
}
if (status & UPSSTATUS_RB) {
asprintf (&ups_status, "%s%s", ups_status, _(", Replace Battery"));
result = STATE_WARNING;
}
if (status & UPSSTATUS_BYPASS) {
asprintf (&ups_status, "%s%s", ups_status, _(", On Bypass"));
}
if (status & UPSSTATUS_OVER) {
asprintf (&ups_status, "%s%s", ups_status, _(", Overload"));
}
if (status & UPSSTATUS_TRIM) {
asprintf (&ups_status, "%s%s", ups_status, _(", Trimming"));
}
if (status & UPSSTATUS_BOOST) {
asprintf (&ups_status, "%s%s", ups_status, _(", Boosting"));
}
if (status & UPSSTATUS_CHRG) {
asprintf (&ups_status, "%s%s", ups_status, _(", Charging"));
}
if (status & UPSSTATUS_DISCHRG) {
asprintf (&ups_status, "%s%s", ups_status, _(", Discharging"));
}
if (status & UPSSTATUS_UNKOWN) {
asprintf (&ups_status, "%s%s", ups_status, _(", Unknown"));
}
}
asprintf (&message, "%sStatus=%s ", message, ups_status);
}
/* get the ups utility voltage if possible */
res=get_ups_variable ("input.voltage", temp_buffer, sizeof (temp_buffer));
if (res == NOSUCHVAR) supported_options &= ~UPS_UTILITY;
else if (res != OK)
return STATE_CRITICAL;
else {
supported_options |= UPS_UTILITY;
ups_utility_voltage = atof (temp_buffer);
asprintf (&message, "%sUtility=%3.1fV ", message, ups_utility_voltage);
if (ups_utility_voltage > 120.0)
ups_utility_deviation = 120.0 - ups_utility_voltage;
else
ups_utility_deviation = ups_utility_voltage - 120.0;
if (check_variable == UPS_UTILITY) {
if (check_crit==TRUE && ups_utility_deviation>=critical_value) {
result = STATE_CRITICAL;
}
else if (check_warn==TRUE && ups_utility_deviation>=warning_value) {
result = max_state (result, STATE_WARNING);
}
asprintf (&data, "%s",
perfdata ("voltage", (long)(1000*ups_utility_voltage), "mV",
check_warn, (long)(1000*warning_value),
check_crit, (long)(1000*critical_value),
TRUE, 0, FALSE, 0));
} else {
asprintf (&data, "%s",
perfdata ("voltage", (long)(1000*ups_utility_voltage), "mV",
FALSE, 0, FALSE, 0, TRUE, 0, FALSE, 0));
}
}
/* get the ups battery percent if possible */
res=get_ups_variable ("battery.charge", temp_buffer, sizeof (temp_buffer));
if (res == NOSUCHVAR) supported_options &= ~UPS_BATTPCT;
else if ( res != OK)
return STATE_CRITICAL;
else {
supported_options |= UPS_BATTPCT;
ups_battery_percent = atof (temp_buffer);
asprintf (&message, "%sBatt=%3.1f%% ", message, ups_battery_percent);
if (check_variable == UPS_BATTPCT) {
if (check_crit==TRUE && ups_battery_percent <= critical_value) {
result = STATE_CRITICAL;
}
else if (check_warn==TRUE && ups_battery_percent<=warning_value) {
result = max_state (result, STATE_WARNING);
}
asprintf (&data, "%s %s", data,
perfdata ("battery", (long)ups_battery_percent, "%",
check_warn, (long)(1000*warning_value),
check_crit, (long)(1000*critical_value),
TRUE, 0, TRUE, 100));
} else {
asprintf (&data, "%s %s", data,
perfdata ("battery", (long)ups_battery_percent, "%",
FALSE, 0, FALSE, 0, TRUE, 0, TRUE, 100));
}
}
/* get the ups load percent if possible */
res=get_ups_variable ("ups.load", temp_buffer, sizeof (temp_buffer));
if ( res == NOSUCHVAR ) supported_options &= ~UPS_LOADPCT;
else if ( res != OK)
return STATE_CRITICAL;
else {
supported_options |= UPS_LOADPCT;
ups_load_percent = atof (temp_buffer);
asprintf (&message, "%sLoad=%3.1f%% ", message, ups_load_percent);
if (check_variable == UPS_LOADPCT) {
if (check_crit==TRUE && ups_load_percent>=critical_value) {
result = STATE_CRITICAL;
}
else if (check_warn==TRUE && ups_load_percent>=warning_value) {
result = max_state (result, STATE_WARNING);
}
asprintf (&data, "%s %s", data,
perfdata ("load", (long)ups_load_percent, "%",
check_warn, (long)(1000*warning_value),
check_crit, (long)(1000*critical_value),
TRUE, 0, TRUE, 100));
} else {
asprintf (&data, "%s %s", data,
perfdata ("load", (long)ups_load_percent, "%",
FALSE, 0, FALSE, 0, TRUE, 0, TRUE, 100));
}
}
/* get the ups temperature if possible */
res=get_ups_variable ("ups.temperature", temp_buffer, sizeof (temp_buffer));
if ( res == NOSUCHVAR ) supported_options &= ~UPS_TEMP;
else if ( res != OK)
return STATE_CRITICAL;
else {
supported_options |= UPS_TEMP;
if (temp_output_c) {
tunits="degC";
ups_temperature = atof (temp_buffer);
asprintf (&message, "%sTemp=%3.1fC", message, ups_temperature);
}
else {
tunits="degF";
ups_temperature = (atof (temp_buffer) * 1.8) + 32;
asprintf (&message, "%sTemp=%3.1fF", message, ups_temperature);
}
if (check_variable == UPS_TEMP) {
if (check_crit==TRUE && ups_temperature>=critical_value) {
result = STATE_CRITICAL;
}
else if (check_warn == TRUE && ups_temperature>=warning_value) {
result = max_state (result, STATE_WARNING);
}
asprintf (&data, "%s %s", data,
perfdata ("temp", (long)ups_temperature, tunits,
check_warn, (long)(1000*warning_value),
check_crit, (long)(1000*critical_value),
TRUE, 0, FALSE, 0));
} else {
asprintf (&data, "%s %s", data,
perfdata ("temp", (long)ups_temperature, tunits,
FALSE, 0, FALSE, 0, TRUE, 0, FALSE, 0));
}
}
/* if the UPS does not support any options we are looking for, report an error */
if (supported_options == UPS_NONE) {
result = STATE_CRITICAL;
asprintf (&message, _("UPS does not support any available options\n"));
}
/* reset timeout */
alarm (0);
printf ("UPS %s - %s|%s\n", state_text(result), message, data);
return result;
}
/* determines what options are supported by the UPS */
int
determine_status (void)
{
char recv_buffer[MAX_INPUT_BUFFER];
char temp_buffer[MAX_INPUT_BUFFER];
char *ptr;
int res;
res=get_ups_variable ("ups.status", recv_buffer, sizeof (recv_buffer));
if (res == NOSUCHVAR) return OK;
if (res != STATE_OK) {
printf ("%s\n", _("Invalid response received from host"));
return ERROR;
}
supported_options |= UPS_STATUS;
strcpy (temp_buffer, recv_buffer);
for (ptr = (char *) strtok (temp_buffer, " "); ptr != NULL;
ptr = (char *) strtok (NULL, " ")) {
if (!strcmp (ptr, "OFF"))
status |= UPSSTATUS_OFF;
else if (!strcmp (ptr, "OL"))
status |= UPSSTATUS_OL;
else if (!strcmp (ptr, "OB"))
status |= UPSSTATUS_OB;
else if (!strcmp (ptr, "LB"))
status |= UPSSTATUS_LB;
else if (!strcmp (ptr, "CAL"))
status |= UPSSTATUS_CAL;
else if (!strcmp (ptr, "RB"))
status |= UPSSTATUS_RB;
else if (!strcmp (ptr, "BYPASS"))
status |= UPSSTATUS_BYPASS;
else if (!strcmp (ptr, "OVER"))
status |= UPSSTATUS_OVER;
else if (!strcmp (ptr, "TRIM"))
status |= UPSSTATUS_TRIM;
else if (!strcmp (ptr, "BOOST"))
status |= UPSSTATUS_BOOST;
else if (!strcmp (ptr, "CHRG"))
status |= UPSSTATUS_CHRG;
else if (!strcmp (ptr, "DISCHRG"))
status |= UPSSTATUS_DISCHRG;
else
status |= UPSSTATUS_UNKOWN;
}
return OK;
}
/* gets a variable value for a specific UPS */
int
get_ups_variable (const char *varname, char *buf, size_t buflen)
{
/* char command[MAX_INPUT_BUFFER]; */
char temp_buffer[MAX_INPUT_BUFFER];
char send_buffer[MAX_INPUT_BUFFER];
char *ptr;
int len;
*buf=0;
/* create the command string to send to the UPS daemon */
sprintf (send_buffer, "GET VAR %s %s\n", ups_name, varname);
/* send the command to the daemon and get a response back */
if (process_tcp_request
(server_address, server_port, send_buffer, temp_buffer,
sizeof (temp_buffer)) != STATE_OK) {
printf ("%s\n", _("Invalid response received from host"));
return ERROR;
}
ptr = temp_buffer;
len = strlen(ptr);
if (len > 0 && ptr[len-1] == '\n') ptr[len-1]=0;
if (strcmp (ptr, "ERR UNKNOWN-UPS") == 0) {
printf (_("CRITICAL - no such ups '%s' on that host\n"), ups_name);
return ERROR;
}
if (strcmp (ptr, "ERR VAR-NOT-SUPPORTED") == 0) {
/*printf ("Error: Variable '%s' is not supported\n", varname);*/
return NOSUCHVAR;
}
if (strcmp (ptr, "ERR DATA-STALE") == 0) {
printf ("%s\n", _("CRITICAL - UPS data is stale"));
return ERROR;
}
if (strncmp (ptr, "ERR", 3) == 0) {
printf (_("Unknown error: %s\n"), ptr);
return ERROR;
}
ptr = temp_buffer + strlen (varname) + strlen (ups_name) + 6;
len = strlen(ptr);
if (len < 2 || ptr[0] != '"' || ptr[len-1] != '"') {
printf ("%s\n", _("Error: unable to parse variable"));
return ERROR;
}
strncpy (buf, ptr+1, len - 2);
buf[len - 2] = 0;
return OK;
}
/* Command line: CHECK_UPS -H <host_address> -u ups [-p port] [-v variable]
[-wv warn_value] [-cv crit_value] [-to to_sec] */
/* process command-line arguments */
int
process_arguments (int argc, char **argv)
{
int c;
int option = 0;
static struct option longopts[] = {
{"hostname", required_argument, 0, 'H'},
{"ups", required_argument, 0, 'u'},
{"port", required_argument, 0, 'p'},
{"critical", required_argument, 0, 'c'},
{"warning", required_argument, 0, 'w'},
{"timeout", required_argument, 0, 't'},
{"temperature", no_argument, 0, 'T'},
{"variable", required_argument, 0, 'v'},
{"version", no_argument, 0, 'V'},
{"help", no_argument, 0, 'h'},
{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");
else if (strcmp ("-wt", argv[c]) == 0)
strcpy (argv[c], "-w");
else if (strcmp ("-ct", argv[c]) == 0)
strcpy (argv[c], "-c");
}
while (1) {
c = getopt_long (argc, argv, "hVTH:u:p:v:c:w:t:", longopts,
&option);
if (c == -1 || c == EOF)
break;
switch (c) {
case '?': /* help */
usage5 ();
case 'H': /* hostname */
if (is_host (optarg)) {
server_address = optarg;
}
else {
usage2 (_("Invalid hostname/address"), optarg);
}
break;
case 'T': /* FIXME: to be improved (ie "-T C" for Celsius or "-T F" for Farenheit) */
temp_output_c = 1;
break;
case 'u': /* ups name */
ups_name = optarg;
break;
case 'p': /* port */
if (is_intpos (optarg)) {
server_port = atoi (optarg);
}
else {
usage2 (_("Port must be a positive integer"), optarg);
}
break;
case 'c': /* critical time threshold */
if (is_intnonneg (optarg)) {
critical_value = atoi (optarg);
check_crit = TRUE;
}
else {
usage2 (_("Critical time must be a positive integer"), optarg);
}
break;
case 'w': /* warning time threshold */
if (is_intnonneg (optarg)) {
warning_value = atoi (optarg);
check_warn = TRUE;
}
else {
usage2 (_("Warning time must be a positive integer"), optarg);
}
break;
case 'v': /* variable */
if (!strcmp (optarg, "LINE"))
check_variable = UPS_UTILITY;
else if (!strcmp (optarg, "TEMP"))
check_variable = UPS_TEMP;
else if (!strcmp (optarg, "BATTPCT"))
check_variable = UPS_BATTPCT;
else if (!strcmp (optarg, "LOADPCT"))
check_variable = UPS_LOADPCT;
else
usage2 (_("Unrecognized UPS variable"), optarg);
break;
case 't': /* timeout */
if (is_intnonneg (optarg)) {
socket_timeout = atoi (optarg);
}
else {
usage4 (_("Timeout interval must be a positive integer"));
}
break;
case 'V': /* version */
print_revision (progname, revision);
exit (STATE_OK);
case 'h': /* help */
print_help ();
exit (STATE_OK);
}
}
if (server_address == NULL && argc > optind) {
if (is_host (argv[optind]))
server_address = argv[optind++];
else
usage2 (_("Invalid hostname/address"), optarg);
}
if (server_address == NULL)
server_address = strdup("127.0.0.1");
return validate_arguments();
}
int
validate_arguments (void)
{
if (! ups_name) {
printf ("%s\n", _("Error : no ups indicated"));
return ERROR;
}
return OK;
}
void
print_help (void)
{
char *myport;
asprintf (&myport, "%d", PORT);
print_revision (progname, revision);
printf ("Copyright (c) 2000 Tom Shields\n");
printf ("Copyright (c) 2004 Alain Richard <alain.richard@equation.fr>\n");
printf ("Copyright (c) 2004 Arnaud Quette <arnaud.quette@mgeups.com>\n");
printf (COPYRIGHT, copyright, email);
printf ("%s\n", _("This plugin tests the UPS service on the specified host. Network UPS Tools"));
printf ("%s\n", _("from www.networkupstools.org must be running for thisplugin to work."));
printf ("\n\n");
print_usage ();
printf (_(UT_HELP_VRSN));
printf (_(UT_EXTRA_OPTS));
printf (_(UT_HOST_PORT), 'p', myport);
printf (" %s\n", "-u, --ups=STRING");
printf (" %s\n", _("Name of UPS"));
printf (" %s\n", "-T, --temperature");
printf (" %s\n", _("Output of temperatures in Celsius"));
printf (" %s\n", "-v, --variable=STRING");
printf (" %s %s\n", _("Valid values for STRING are"), "LINE, TEMP, BATTPCT or LOADPCT");
printf (_(UT_WARN_CRIT));
printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
/* TODO: -v clashing with -v/-variable. Commenting out help text since verbose
is unused up to now */
/* printf (_(UT_VERBOSE)); */
printf ("\n");
printf ("%s\n", _("This plugin attempts to determine the status of a UPS (Uninterruptible Power"));
printf ("%s\n", _("Supply) on a local or remote host. If the UPS is online or calibrating, the"));
printf ("%s\n", _("plugin will return an OK state. If the battery is on it will return a WARNING"));
printf ("%s\n", _("state.If the UPS is off or has a low battery the plugin will return a CRITICAL"));
printf ("%s\n", _("state."));
printf ("\n");
printf ("%s\n", _("Notes:"));
printf (" %s\n", _("You may also specify a variable to check (such as temperature, utility voltage,"));
printf (" %s\n", _("battery load, etc.) as well as warning and critical thresholds for the value"));
printf (" %s\n", _("of that variable. If the remote host has multiple UPS that are being monitored"));
printf (" %s\n", _("you will have to use the --ups option to specify which UPS to check."));
printf ("\n");
printf (" %s\n", _("This plugin requires that the UPSD daemon distributed with Russel Kroll's"));
printf (" %s\n", _("Smart UPS Tools be installed on the remote host. If you do not have the"));
printf (" %s\n", _("package installed on your system, you can download it from"));
printf (" %s\n", _("http://www.networkupstools.org"));
#ifdef NP_EXTRA_OPTS
printf ("\n");
printf (_(UT_EXTRA_OPTS_NOTES));
#endif
printf (_(UT_SUPPORT));
}
void
print_usage (void)
{
printf (_("Usage:"));
printf ("%s -H host -u ups [-p port] [-v variable] [-w warn_value] [-c crit_value] [-to to_sec] [-T]\n", progname);
}
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