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/*

FUNCTION

<<time>>---get current calendar time (as single number)

INDEX

        time

ANSI_SYNOPSIS

        #include <time.h>

        time_t time(time_t *<[t]>);

TRAD_SYNOPSIS

        #include <time.h>

        time_t time(<[t]>)

        time_t *<[t]>;

DESCRIPTION

<<time>> looks up the best available representation of the current

time and returns it, encoded as a <<time_t>>.  It stores the same

value at <[t]> unless the argument is <<NULL>>.

RETURNS

A <<-1>> result means the current time is not available; otherwise the

result represents the current time.

PORTABILITY

ANSI C requires <<time>>.

Supporting OS subroutine required: Some implementations require

<<gettimeofday>>.

*/

/* Most times we have a system call in newlib/libc/sys/.. to do this job */

#include <_ansi.h>

#include <reent.h>

#include <sys/types.h>

#include <sys/time.h>

time_t

_DEFUN (time, (t),

        time_t * t)

{

  struct timeval now;

  if (_gettimeofday_r (_REENT, &now, NULL) >= 0)

    {

      if (t)

        *t = now.tv_sec;

      return now.tv_sec;

    }

  return -1;

}