ntp_gettime(2) System Calls ntp_gettime(2)
NAME
ntp_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 num-
ber of seconds.
SEE ALSO
xntpd(1M), ntp_adjtime(2)
SunOS 5.10 9 Nov 1999 ntp_gettime(2)
