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/*****************************************************************************
*
* libntpq.h
*
* This is the wrapper library for ntpq, the NTP query utility.
* This library reuses the sourcecode from ntpq and exports a number
* of useful functions in a library that can be linked against applications
* that need to query the status of a running ntpd. The whole
* communcation is based on mode 6 packets.
*
* This header file can be used in applications that want to link against
* libntpq.
*
****************************************************************************/
#include "ntp_net.h"
/* general purpose buffer size */
#define NTPQ_BUFLEN 2048
/* max. number of associations */
#ifndef MAXASSOC
#define MAXASSOC 1024
#endif
/* general purpose max array size definition */
#ifndef MAXLIST
#define MAXLIST 64
#endif
#ifndef LENHOSTNAME
#define LENHOSTNAME 256 /* host name is max. 256 characters long */
#endif
/* NTP Status codes */
#define NTP_STATUS_INVALID 0
#define NTP_STATUS_FALSETICKER 1
#define NTP_STATUS_EXCESS 2
#define NTP_STATUS_OUTLYER 3
#define NTP_STATUS_CANDIDATE 4
#define NTP_STATUS_SELECTED 5
#define NTP_STATUS_SYSPEER 6
#define NTP_STATUS_PPSPEER 7
/* NTP association type identifier */
#define NTP_CLOCKTYPE_UNKNOWN '-'
#define NTP_CLOCKTYPE_BROADCAST 'b'
#define NTP_CLOCKTYPE_LOCAL 'l'
#define NTP_CLOCKTYPE_UNICAST 'u'
#define NTP_CLOCKTYPE_MULTICAST 'm'
/* Variable Sets */
#define PEERVARS CTL_OP_READVAR
#define CLOCKVARS CTL_OP_CLOCKVAR
/* Variable list struct */
struct ntpq_varlist {
char *name;
char *value;
};
/* global variables used for holding snapshots of data */
#ifndef LIBNTPQ_C
extern char peervars[];
extern int peervarlen;
extern int peervar_assoc;
extern char clockvars[];
extern int clockvarlen;
extern int clockvar_assoc;
extern char sysvars[];
extern int sysvarlen;
extern char *ntpq_resultbuffer[];
extern struct ntpq_varlist ntpq_varlist[MAXLIST];
#endif
/*
* Prototypes of exported libary functions
*/
/* from libntpq.c */
extern int ntpq_openhost(char *, int);
extern int ntpq_closehost(void);
extern int ntpq_queryhost(unsigned short VARSET, associd_t association,
char *resultbuf, int maxlen);
extern size_t ntpq_getvar(const char *resultbuf, size_t datalen,
const char *varname, char *varvalue,
size_t maxlen);
extern int ntpq_stripquotes ( char *resultbuf, char *srcbuf, int datalen, int maxlen );
extern int ntpq_queryhost_peervars(associd_t association, char *resultbuf, int maxlen);
extern int ntpq_get_peervar( const char *varname, char *varvalue, int maxlen);
extern size_t ntpq_read_sysvars(char *resultbuf, size_t maxsize);
extern int ntpq_get_sysvars( void );
extern int ntpq_read_associations ( unsigned short resultbuf[], int max_entries );
extern int ntpq_get_assocs ( void );
extern int ntpq_get_assoc_number ( associd_t associd );
extern int ntpq_get_assoc_peervars( associd_t associd );
extern int ntpq_get_assoc_clockvars( associd_t associd );
extern int ntpq_get_assoc_allvars( associd_t associd );
extern int ntpq_get_assoc_clocktype(int assoc_index);
extern int ntpq_read_assoc_peervars( associd_t associd, char *resultbuf, int maxsize );
extern int ntpq_read_assoc_clockvars( associd_t associd, char *resultbuf, int maxsize );
/* in libntpq_subs.c */
extern int ntpq_dogetassoc(void);
extern char ntpq_decodeaddrtype(sockaddr_u *sock);
extern int ntpq_doquerylist(struct ntpq_varlist *, int, associd_t, int,
u_short *, int *, const char **datap);
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