Imported Upstream version 1.4.11
This commit is contained in:
parent
cff68b4c0a
commit
1d1585cd09
72 changed files with 16170 additions and 13657 deletions
636
plugins/check_ntp_time.c
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636
plugins/check_ntp_time.c
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/******************************************************************************
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*
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* Nagios check_ntp_time plugin
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*
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* License: GPL
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* Copyright (c) 2006 sean finney <seanius@seanius.net>
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* Copyright (c) 2007 nagios-plugins team
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*
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* Last Modified: $Date: 2007-12-11 05:57:35 +0000 (Tue, 11 Dec 2007) $
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*
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* Description:
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*
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* This file contains the check_ntp_time plugin
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*
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* This plugin checks the clock offset between the local host and a
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* remote NTP server. It is independent of any commandline programs or
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* external libraries.
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*
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* If you'd rather want to monitor an NTP server, please use
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* check_ntp_peer.
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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_ntp_time.c 1861 2007-12-11 05:57:35Z dermoth $
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*****************************************************************************/
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const char *progname = "check_ntp_time";
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const char *revision = "$Revision: 1861 $";
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const char *copyright = "2007";
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const char *email = "nagiosplug-devel@lists.sourceforge.net";
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#include "common.h"
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#include "netutils.h"
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#include "utils.h"
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static char *server_address=NULL;
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static int verbose=0;
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static int quiet=0;
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static char *owarn="60";
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static char *ocrit="120";
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int process_arguments (int, char **);
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thresholds *offset_thresholds = NULL;
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void print_help (void);
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void print_usage (void);
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/* number of times to perform each request to get a good average. */
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#define AVG_NUM 4
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/* max size of control message data */
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#define MAX_CM_SIZE 468
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/* this structure holds everything in an ntp request/response as per rfc1305 */
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typedef struct {
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uint8_t flags; /* byte with leapindicator,vers,mode. see macros */
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uint8_t stratum; /* clock stratum */
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int8_t poll; /* polling interval */
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int8_t precision; /* precision of the local clock */
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int32_t rtdelay; /* total rt delay, as a fixed point num. see macros */
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uint32_t rtdisp; /* like above, but for max err to primary src */
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uint32_t refid; /* ref clock identifier */
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uint64_t refts; /* reference timestamp. local time local clock */
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uint64_t origts; /* time at which request departed client */
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uint64_t rxts; /* time at which request arrived at server */
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uint64_t txts; /* time at which request departed server */
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} ntp_message;
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/* this structure holds data about results from querying offset from a peer */
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typedef struct {
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time_t waiting; /* ts set when we started waiting for a response */
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int num_responses; /* number of successfully recieved responses */
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uint8_t stratum; /* copied verbatim from the ntp_message */
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double rtdelay; /* converted from the ntp_message */
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double rtdisp; /* converted from the ntp_message */
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double offset[AVG_NUM]; /* offsets from each response */
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uint8_t flags; /* byte with leapindicator,vers,mode. see macros */
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} ntp_server_results;
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/* bits 1,2 are the leap indicator */
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#define LI_MASK 0xc0
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#define LI(x) ((x&LI_MASK)>>6)
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#define LI_SET(x,y) do{ x |= ((y<<6)&LI_MASK); }while(0)
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/* and these are the values of the leap indicator */
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#define LI_NOWARNING 0x00
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#define LI_EXTRASEC 0x01
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#define LI_MISSINGSEC 0x02
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#define LI_ALARM 0x03
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/* bits 3,4,5 are the ntp version */
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#define VN_MASK 0x38
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#define VN(x) ((x&VN_MASK)>>3)
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#define VN_SET(x,y) do{ x |= ((y<<3)&VN_MASK); }while(0)
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#define VN_RESERVED 0x02
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/* bits 6,7,8 are the ntp mode */
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#define MODE_MASK 0x07
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#define MODE(x) (x&MODE_MASK)
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#define MODE_SET(x,y) do{ x |= (y&MODE_MASK); }while(0)
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/* here are some values */
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#define MODE_CLIENT 0x03
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#define MODE_CONTROLMSG 0x06
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/* In control message, bits 8-10 are R,E,M bits */
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#define REM_MASK 0xe0
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#define REM_RESP 0x80
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#define REM_ERROR 0x40
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#define REM_MORE 0x20
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/* In control message, bits 11 - 15 are opcode */
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#define OP_MASK 0x1f
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#define OP_SET(x,y) do{ x |= (y&OP_MASK); }while(0)
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#define OP_READSTAT 0x01
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#define OP_READVAR 0x02
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/* In peer status bytes, bits 6,7,8 determine clock selection status */
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#define PEER_SEL(x) ((ntohs(x)>>8)&0x07)
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#define PEER_INCLUDED 0x04
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#define PEER_SYNCSOURCE 0x06
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/**
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** a note about the 32-bit "fixed point" numbers:
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**
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they are divided into halves, each being a 16-bit int in network byte order:
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- the first 16 bits are an int on the left side of a decimal point.
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- the second 16 bits represent a fraction n/(2^16)
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likewise for the 64-bit "fixed point" numbers with everything doubled :)
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**/
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/* macros to access the left/right 16 bits of a 32-bit ntp "fixed point"
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number. note that these can be used as lvalues too */
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#define L16(x) (((uint16_t*)&x)[0])
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#define R16(x) (((uint16_t*)&x)[1])
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/* macros to access the left/right 32 bits of a 64-bit ntp "fixed point"
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number. these too can be used as lvalues */
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#define L32(x) (((uint32_t*)&x)[0])
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#define R32(x) (((uint32_t*)&x)[1])
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/* ntp wants seconds since 1/1/00, epoch is 1/1/70. this is the difference */
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#define EPOCHDIFF 0x83aa7e80UL
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/* extract a 32-bit ntp fixed point number into a double */
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#define NTP32asDOUBLE(x) (ntohs(L16(x)) + (double)ntohs(R16(x))/65536.0)
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/* likewise for a 64-bit ntp fp number */
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#define NTP64asDOUBLE(n) (double)(((uint64_t)n)?\
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(ntohl(L32(n))-EPOCHDIFF) + \
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(.00000001*(0.5+(double)(ntohl(R32(n))/42.94967296))):\
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0)
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/* convert a struct timeval to a double */
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#define TVasDOUBLE(x) (double)(x.tv_sec+(0.000001*x.tv_usec))
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/* convert an ntp 64-bit fp number to a struct timeval */
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#define NTP64toTV(n,t) \
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do{ if(!n) t.tv_sec = t.tv_usec = 0; \
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else { \
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t.tv_sec=ntohl(L32(n))-EPOCHDIFF; \
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t.tv_usec=(int)(0.5+(double)(ntohl(R32(n))/4294.967296)); \
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} \
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}while(0)
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/* convert a struct timeval to an ntp 64-bit fp number */
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#define TVtoNTP64(t,n) \
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do{ if(!t.tv_usec && !t.tv_sec) n=0x0UL; \
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else { \
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L32(n)=htonl(t.tv_sec + EPOCHDIFF); \
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R32(n)=htonl((uint64_t)((4294.967296*t.tv_usec)+.5)); \
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} \
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} while(0)
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/* NTP control message header is 12 bytes, plus any data in the data
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* field, plus null padding to the nearest 32-bit boundary per rfc.
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*/
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#define SIZEOF_NTPCM(m) (12+ntohs(m.count)+((m.count)?4-(ntohs(m.count)%4):0))
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/* finally, a little helper or two for debugging: */
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#define DBG(x) do{if(verbose>1){ x; }}while(0);
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#define PRINTSOCKADDR(x) \
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do{ \
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printf("%u.%u.%u.%u", (x>>24)&0xff, (x>>16)&0xff, (x>>8)&0xff, x&0xff);\
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}while(0);
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/* calculate the offset of the local clock */
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static inline double calc_offset(const ntp_message *m, const struct timeval *t){
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double client_tx, peer_rx, peer_tx, client_rx;
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client_tx = NTP64asDOUBLE(m->origts);
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peer_rx = NTP64asDOUBLE(m->rxts);
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peer_tx = NTP64asDOUBLE(m->txts);
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client_rx=TVasDOUBLE((*t));
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return (.5*((peer_tx-client_rx)+(peer_rx-client_tx)));
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}
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/* print out a ntp packet in human readable/debuggable format */
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void print_ntp_message(const ntp_message *p){
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struct timeval ref, orig, rx, tx;
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NTP64toTV(p->refts,ref);
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NTP64toTV(p->origts,orig);
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NTP64toTV(p->rxts,rx);
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NTP64toTV(p->txts,tx);
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printf("packet contents:\n");
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printf("\tflags: 0x%.2x\n", p->flags);
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printf("\t li=%d (0x%.2x)\n", LI(p->flags), p->flags&LI_MASK);
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printf("\t vn=%d (0x%.2x)\n", VN(p->flags), p->flags&VN_MASK);
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printf("\t mode=%d (0x%.2x)\n", MODE(p->flags), p->flags&MODE_MASK);
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printf("\tstratum = %d\n", p->stratum);
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printf("\tpoll = %g\n", pow(2, p->poll));
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printf("\tprecision = %g\n", pow(2, p->precision));
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printf("\trtdelay = %-.16g\n", NTP32asDOUBLE(p->rtdelay));
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printf("\trtdisp = %-.16g\n", NTP32asDOUBLE(p->rtdisp));
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printf("\trefid = %x\n", p->refid);
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printf("\trefts = %-.16g\n", NTP64asDOUBLE(p->refts));
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printf("\torigts = %-.16g\n", NTP64asDOUBLE(p->origts));
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printf("\trxts = %-.16g\n", NTP64asDOUBLE(p->rxts));
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printf("\ttxts = %-.16g\n", NTP64asDOUBLE(p->txts));
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}
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void setup_request(ntp_message *p){
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struct timeval t;
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memset(p, 0, sizeof(ntp_message));
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LI_SET(p->flags, LI_ALARM);
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VN_SET(p->flags, 4);
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MODE_SET(p->flags, MODE_CLIENT);
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p->poll=4;
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p->precision=(int8_t)0xfa;
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L16(p->rtdelay)=htons(1);
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L16(p->rtdisp)=htons(1);
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gettimeofday(&t, NULL);
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TVtoNTP64(t,p->txts);
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}
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/* select the "best" server from a list of servers, and return its index.
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* this is done by filtering servers based on stratum, dispersion, and
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* finally round-trip delay. */
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int best_offset_server(const ntp_server_results *slist, int nservers){
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int i=0, j=0, cserver=0, candidates[5], csize=0;
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/* for each server */
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for(cserver=0; cserver<nservers; cserver++){
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/* sort out servers with error flags */
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if ( LI(slist[cserver].flags) != LI_NOWARNING ){
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if (verbose) printf("discarding peer id %d: flags=%d\n", cserver, LI(slist[cserver].flags));
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break;
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}
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/* compare it to each of the servers already in the candidate list */
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for(i=0; i<csize; i++){
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/* does it have an equal or better stratum? */
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if(slist[cserver].stratum <= slist[i].stratum){
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/* does it have an equal or better dispersion? */
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if(slist[cserver].rtdisp <= slist[i].rtdisp){
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/* does it have a better rtdelay? */
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if(slist[cserver].rtdelay < slist[i].rtdelay){
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break;
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}
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}
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}
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}
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/* if we haven't reached the current list's end, move everyone
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* over one to the right, and insert the new candidate */
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if(i<csize){
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for(j=5; j>i; j--){
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candidates[j]=candidates[j-1];
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}
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}
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/* regardless, if they should be on the list... */
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if(i<5) {
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candidates[i]=cserver;
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if(csize<5) csize++;
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/* otherwise discard the server */
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} else {
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DBG(printf("discarding peer id %d\n", cserver));
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}
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}
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if(csize>0) {
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DBG(printf("best server selected: peer %d\n", candidates[0]));
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return candidates[0];
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} else {
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DBG(printf("no peers meeting synchronization criteria :(\n"));
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return -1;
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}
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}
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/* do everything we need to get the total average offset
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* - we use a certain amount of parallelization with poll() to ensure
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* we don't waste time sitting around waiting for single packets.
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* - we also "manually" handle resolving host names and connecting, because
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* we have to do it in a way that our lazy macros don't handle currently :( */
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double offset_request(const char *host, int *status){
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int i=0, j=0, ga_result=0, num_hosts=0, *socklist=NULL, respnum=0;
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int servers_completed=0, one_written=0, one_read=0, servers_readable=0, best_index=-1;
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time_t now_time=0, start_ts=0;
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ntp_message *req=NULL;
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double avg_offset=0.;
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struct timeval recv_time;
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struct addrinfo *ai=NULL, *ai_tmp=NULL, hints;
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struct pollfd *ufds=NULL;
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ntp_server_results *servers=NULL;
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/* setup hints to only return results from getaddrinfo that we'd like */
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memset(&hints, 0, sizeof(struct addrinfo));
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hints.ai_family = address_family;
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hints.ai_protocol = IPPROTO_UDP;
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hints.ai_socktype = SOCK_DGRAM;
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/* fill in ai with the list of hosts resolved by the host name */
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ga_result = getaddrinfo(host, "123", &hints, &ai);
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if(ga_result!=0){
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die(STATE_UNKNOWN, "error getting address for %s: %s\n",
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host, gai_strerror(ga_result));
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}
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/* count the number of returned hosts, and allocate stuff accordingly */
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for(ai_tmp=ai; ai_tmp!=NULL; ai_tmp=ai_tmp->ai_next){ num_hosts++; }
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req=(ntp_message*)malloc(sizeof(ntp_message)*num_hosts);
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if(req==NULL) die(STATE_UNKNOWN, "can not allocate ntp message array");
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socklist=(int*)malloc(sizeof(int)*num_hosts);
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if(socklist==NULL) die(STATE_UNKNOWN, "can not allocate socket array");
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ufds=(struct pollfd*)malloc(sizeof(struct pollfd)*num_hosts);
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if(ufds==NULL) die(STATE_UNKNOWN, "can not allocate socket array");
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servers=(ntp_server_results*)malloc(sizeof(ntp_server_results)*num_hosts);
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if(servers==NULL) die(STATE_UNKNOWN, "can not allocate server array");
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memset(servers, 0, sizeof(ntp_server_results)*num_hosts);
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/* setup each socket for writing, and the corresponding struct pollfd */
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ai_tmp=ai;
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for(i=0;ai_tmp;i++){
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socklist[i]=socket(ai_tmp->ai_family, SOCK_DGRAM, IPPROTO_UDP);
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if(socklist[i] == -1) {
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perror(NULL);
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die(STATE_UNKNOWN, "can not create new socket");
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}
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if(connect(socklist[i], ai_tmp->ai_addr, ai_tmp->ai_addrlen)){
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die(STATE_UNKNOWN, "can't create socket connection");
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} else {
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ufds[i].fd=socklist[i];
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ufds[i].events=POLLIN;
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ufds[i].revents=0;
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}
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ai_tmp = ai_tmp->ai_next;
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}
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/* now do AVG_NUM checks to each host. We stop before timeout/2 seconds
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* have passed in order to ensure post-processing and jitter time. */
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now_time=start_ts=time(NULL);
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while(servers_completed<num_hosts && now_time-start_ts <= socket_timeout/2){
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/* loop through each server and find each one which hasn't
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* been touched in the past second or so and is still lacking
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* some responses. For each of these servers, send a new request,
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* and update the "waiting" timestamp with the current time. */
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one_written=0;
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now_time=time(NULL);
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for(i=0; i<num_hosts; i++){
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if(servers[i].waiting<now_time && servers[i].num_responses<AVG_NUM){
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if(verbose && servers[i].waiting != 0) printf("re-");
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if(verbose) printf("sending request to peer %d\n", i);
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setup_request(&req[i]);
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write(socklist[i], &req[i], sizeof(ntp_message));
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servers[i].waiting=now_time;
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one_written=1;
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break;
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}
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}
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/* quickly poll for any sockets with pending data */
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servers_readable=poll(ufds, num_hosts, 100);
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if(servers_readable==-1){
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perror("polling ntp sockets");
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die(STATE_UNKNOWN, "communication errors");
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}
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/* read from any sockets with pending data */
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for(i=0; servers_readable && i<num_hosts; i++){
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if(ufds[i].revents&POLLIN && servers[i].num_responses < AVG_NUM){
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if(verbose) {
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printf("response from peer %d: ", i);
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}
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read(ufds[i].fd, &req[i], sizeof(ntp_message));
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gettimeofday(&recv_time, NULL);
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DBG(print_ntp_message(&req[i]));
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respnum=servers[i].num_responses++;
|
||||
servers[i].offset[respnum]=calc_offset(&req[i], &recv_time);
|
||||
if(verbose) {
|
||||
printf("offset %.10g\n", servers[i].offset[respnum]);
|
||||
}
|
||||
servers[i].stratum=req[i].stratum;
|
||||
servers[i].rtdisp=NTP32asDOUBLE(req[i].rtdisp);
|
||||
servers[i].rtdelay=NTP32asDOUBLE(req[i].rtdelay);
|
||||
servers[i].waiting=0;
|
||||
servers[i].flags=req[i].flags;
|
||||
servers_readable--;
|
||||
one_read = 1;
|
||||
if(servers[i].num_responses==AVG_NUM) servers_completed++;
|
||||
}
|
||||
}
|
||||
/* lather, rinse, repeat. */
|
||||
}
|
||||
|
||||
if (one_read == 0) {
|
||||
die(STATE_CRITICAL, "NTP CRITICAL: No response from NTP server\n");
|
||||
}
|
||||
|
||||
/* now, pick the best server from the list */
|
||||
best_index=best_offset_server(servers, num_hosts);
|
||||
if(best_index < 0){
|
||||
*status=STATE_UNKNOWN;
|
||||
} else {
|
||||
/* finally, calculate the average offset */
|
||||
for(i=0; i<servers[best_index].num_responses;i++){
|
||||
avg_offset+=servers[best_index].offset[j];
|
||||
}
|
||||
avg_offset/=servers[best_index].num_responses;
|
||||
}
|
||||
|
||||
/* cleanup */
|
||||
for(j=0; j<num_hosts; j++){ close(socklist[j]); }
|
||||
free(socklist);
|
||||
free(ufds);
|
||||
free(servers);
|
||||
free(req);
|
||||
freeaddrinfo(ai);
|
||||
|
||||
if(verbose) printf("overall average offset: %.10g\n", avg_offset);
|
||||
return avg_offset;
|
||||
}
|
||||
|
||||
int process_arguments(int argc, char **argv){
|
||||
int c;
|
||||
int option=0;
|
||||
static struct option longopts[] = {
|
||||
{"version", no_argument, 0, 'V'},
|
||||
{"help", no_argument, 0, 'h'},
|
||||
{"verbose", no_argument, 0, 'v'},
|
||||
{"use-ipv4", no_argument, 0, '4'},
|
||||
{"use-ipv6", no_argument, 0, '6'},
|
||||
{"quiet", no_argument, 0, 'q'},
|
||||
{"warning", required_argument, 0, 'w'},
|
||||
{"critical", required_argument, 0, 'c'},
|
||||
{"timeout", required_argument, 0, 't'},
|
||||
{"hostname", required_argument, 0, 'H'},
|
||||
{0, 0, 0, 0}
|
||||
};
|
||||
|
||||
|
||||
if (argc < 2)
|
||||
usage ("\n");
|
||||
|
||||
while (1) {
|
||||
c = getopt_long (argc, argv, "Vhv46qw:c:t:H:", longopts, &option);
|
||||
if (c == -1 || c == EOF || c == 1)
|
||||
break;
|
||||
|
||||
switch (c) {
|
||||
case 'h':
|
||||
print_help();
|
||||
exit(STATE_OK);
|
||||
break;
|
||||
case 'V':
|
||||
print_revision(progname, revision);
|
||||
exit(STATE_OK);
|
||||
break;
|
||||
case 'v':
|
||||
verbose++;
|
||||
break;
|
||||
case 'q':
|
||||
quiet = 1;
|
||||
break;
|
||||
case 'w':
|
||||
owarn = optarg;
|
||||
break;
|
||||
case 'c':
|
||||
ocrit = optarg;
|
||||
break;
|
||||
case 'H':
|
||||
if(is_host(optarg) == FALSE)
|
||||
usage2(_("Invalid hostname/address"), optarg);
|
||||
server_address = strdup(optarg);
|
||||
break;
|
||||
case 't':
|
||||
socket_timeout=atoi(optarg);
|
||||
break;
|
||||
case '4':
|
||||
address_family = AF_INET;
|
||||
break;
|
||||
case '6':
|
||||
#ifdef USE_IPV6
|
||||
address_family = AF_INET6;
|
||||
#else
|
||||
usage4 (_("IPv6 support not available"));
|
||||
#endif
|
||||
break;
|
||||
case '?':
|
||||
/* print short usage statement if args not parsable */
|
||||
usage5 ();
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if(server_address == NULL){
|
||||
usage4(_("Hostname was not supplied"));
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
char *perfd_offset (double offset)
|
||||
{
|
||||
return fperfdata ("offset", offset, "s",
|
||||
TRUE, offset_thresholds->warning->end,
|
||||
TRUE, offset_thresholds->critical->end,
|
||||
FALSE, 0, FALSE, 0);
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[]){
|
||||
int result, offset_result;
|
||||
double offset=0;
|
||||
char *result_line, *perfdata_line;
|
||||
|
||||
setlocale (LC_ALL, "");
|
||||
bindtextdomain (PACKAGE, LOCALEDIR);
|
||||
textdomain (PACKAGE);
|
||||
|
||||
result = offset_result = STATE_OK;
|
||||
|
||||
if (process_arguments (argc, argv) == ERROR)
|
||||
usage4 (_("Could not parse arguments"));
|
||||
|
||||
set_thresholds(&offset_thresholds, owarn, ocrit);
|
||||
|
||||
/* initialize alarm signal handling */
|
||||
signal (SIGALRM, socket_timeout_alarm_handler);
|
||||
|
||||
/* set socket timeout */
|
||||
alarm (socket_timeout);
|
||||
|
||||
offset = offset_request(server_address, &offset_result);
|
||||
if (offset_result == STATE_UNKNOWN) {
|
||||
result = (quiet == 1 ? STATE_UNKNOWN : STATE_CRITICAL);
|
||||
} else {
|
||||
result = get_status(fabs(offset), offset_thresholds);
|
||||
}
|
||||
|
||||
switch (result) {
|
||||
case STATE_CRITICAL :
|
||||
asprintf(&result_line, _("NTP CRITICAL:"));
|
||||
break;
|
||||
case STATE_WARNING :
|
||||
asprintf(&result_line, _("NTP WARNING:"));
|
||||
break;
|
||||
case STATE_OK :
|
||||
asprintf(&result_line, _("NTP OK:"));
|
||||
break;
|
||||
default :
|
||||
asprintf(&result_line, _("NTP UNKNOWN:"));
|
||||
break;
|
||||
}
|
||||
if(offset_result == STATE_UNKNOWN){
|
||||
asprintf(&result_line, "%s %s", result_line, _("Offset unknown"));
|
||||
asprintf(&perfdata_line, "");
|
||||
} else {
|
||||
asprintf(&result_line, "%s %s %.10g secs", result_line, _("Offset"), offset);
|
||||
asprintf(&perfdata_line, "%s", perfd_offset(offset));
|
||||
}
|
||||
printf("%s|%s\n", result_line, perfdata_line);
|
||||
|
||||
if(server_address!=NULL) free(server_address);
|
||||
return result;
|
||||
}
|
||||
|
||||
void print_help(void){
|
||||
print_revision(progname, revision);
|
||||
|
||||
printf ("Copyright (c) 2006 Sean Finney\n");
|
||||
printf (COPYRIGHT, copyright, email);
|
||||
|
||||
printf ("%s\n", _("This plugin checks the clock offset with the ntp server"));
|
||||
|
||||
printf ("\n\n");
|
||||
|
||||
print_usage();
|
||||
printf (_(UT_HELP_VRSN));
|
||||
printf (_(UT_HOST_PORT), 'p', "123");
|
||||
printf (" %s\n", "-q, --quiet");
|
||||
printf (" %s\n", _("Returns UNKNOWN instead of CRITICAL if offset cannot be found"));
|
||||
printf (" %s\n", "-w, --warning=THRESHOLD");
|
||||
printf (" %s\n", _("Offset to result in warning status (seconds)"));
|
||||
printf (" %s\n", "-c, --critical=THRESHOLD");
|
||||
printf (" %s\n", _("Offset to result in critical status (seconds)"));
|
||||
printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
|
||||
printf (_(UT_VERBOSE));
|
||||
|
||||
printf("\n");
|
||||
printf("%s\n", _("Notes:"));
|
||||
printf(" %s\n", _("This plugin checks the clock offset between the local host and a"));
|
||||
printf(" %s\n", _("remote NTP server. It is independent of any commandline programs or"));
|
||||
printf(" %s\n\n", _("external libraries."));
|
||||
printf(" %s\n", _("If you'd rather want to monitor an NTP server, please use"));
|
||||
printf(" %s\n\n", _("check_ntp_peer."));
|
||||
|
||||
printf(" %s\n", _("See:"));
|
||||
printf(" %s\n", ("http://nagiosplug.sourceforge.net/developer-guidelines.html#THRESHOLDFORMAT"));
|
||||
printf(" %s\n", _("for THRESHOLD format and examples."));
|
||||
|
||||
printf("\n");
|
||||
printf("%s\n", _("Examples:"));
|
||||
printf(" %s\n", ("./check_ntp_time -H ntpserv -w 0.5 -c 1"));
|
||||
|
||||
printf (_(UT_SUPPORT));
|
||||
}
|
||||
|
||||
void
|
||||
print_usage(void)
|
||||
{
|
||||
printf (_("Usage:"));
|
||||
printf(" %s -H <host> [-w <warn>] [-c <crit>] [-W <warn>] [-C <crit>]\n", progname);
|
||||
printf(" [-j <warn>] [-k <crit>] [-v verbose]\n");
|
||||
}
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue