NetBSD/usr.sbin/xntp/ntptrace/ntptrace.h

37 lines
1.3 KiB
C

/*
* ntptrace.h - declarations for the ntptrace program
*/
/*
* The server structure is a much simplified version of the
* peer structure, for ntptrace's use. Since we always send
* in client mode and expect to receive in server mode, this
* leaves only a very limited number of things we need to
* remember about the server.
*/
struct server {
struct sockaddr_in srcadr; /* address of remote host */
u_char leap; /* leap indicator */
u_char stratum; /* stratum of remote server */
s_char precision; /* server's clock precision */
u_fp rootdelay; /* distance from primary clock */
u_fp rootdispersion; /* peer clock dispersion */
u_int32 refid; /* peer reference ID */
l_fp reftime; /* time of peer's last update */
l_fp org; /* peer's originate time stamp */
l_fp xmt; /* transmit time stamp */
u_fp delay; /* filter estimated delay */
u_fp dispersion; /* filter estimated dispersion */
l_fp offset; /* filter estimated clock offset */
};
/*
* Since ntptrace isn't aware of some of the things that normally get
* put in an NTP packet, we fix some values.
*/
#define NTPTRACE_PRECISION (-6) /* use this precision */
#define NTPTRACE_DISTANCE FP_SECOND /* distance is 1 sec */
#define NTPTRACE_DISP FP_SECOND /* so is the dispersion */
#define NTPTRACE_REFID (0) /* reference ID to use */