NTP_GETTIME(2)NTP_GETTIME(2)NAMEntp_gettime - get local clock values
SYNOPSIS
#include <sys/timex.h>
int ntp_gettime(struct ntptimeval *tptr);
DESCRIPTION
The ntp_gettime() function reads the local clock value and dispersion,
returning the information in tptr.
The ntptimeval structure contains the following members:
struct ntptimeval {
struct timeval time; /* current time (ro) */
int32_t maxerror; /* maximum error (us) (ro) */
int32_t esterror; /* estimated error (us) (ro) */
};
RETURN VALUES
Upon successful completion, ntp_gettime() returns the current clock
state (see <sys/timex.h>). Otherwise, it returns −1 and sets errno to
indicate the error.
ERRORS
The ntp_gettime() function will fail if:
EFAULT
The tptr argument points to an invalid address.
The ntp_gettime() function will fail for 32-bit interfaces if:
EOVERFLOW
The size of the time.tv_sec member of the ntptimeval
structure pointed to by tptr is too small to contain the
correct number of seconds.
SEE ALSOntp_adjtime(2)
See the ntpd man page, delivered in the SUNWntpu package (not a SunOS
man page).
May 21, 2009 NTP_GETTIME(2)