nativelibc/time/time.c

/*	A part of the Native C Library for Windows NT
	Copyright 2007-2015 PC GO Ld.

	This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

	This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
*/

#include <time.h>
#include <windows.h>
#include <nt.h>
#include <errno.h>

time_t time(time_t *t) {
	unsigned long int r;
	LARGE_INTEGER li;
	long int status = NtQuerySystemTime(&li);
	if(__set_errno_from_ntstatus(status)) return -1;
	if(!RtlTimeToSecondsSince1970(&li, &r)) {
		// ???
		errno = ERANGE;
		return -1;
	}
	if(t) *t = r;
	return r;
}