glibc/sysdeps/posix/time.c

41 lines
1.2 KiB
C

/* Copyright (C) 1991-2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <stddef.h> /* For NULL. */
#include <time.h>
#include <sys/time.h>
/* Return the current time as a `time_t' and also put it in *T if T is
not NULL. Time is represented as seconds from Jan 1 00:00:00 1970. */
time_t
time (time_t *t)
{
struct timeval tv;
time_t result;
if (__gettimeofday (&tv, (struct timezone *) NULL))
result = (time_t) -1;
else
result = (time_t) tv.tv_sec;
if (t != NULL)
*t = result;
return result;
}
libc_hidden_def (time)