sysdeps/unix/sysv/linux/ftime.c

   1 /* Deprecated return date and time.  Linux version.
   2    Copyright (C) 1994-2024 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <features.h>
  20 #include <sys/timeb.h>
  21 #include <time.h>
  22 #include <errno.h>
  23
  24 int
  25 __ftime64 (struct __timeb64 *timebuf)
  26 {
  27   struct __timespec64 ts;
  28   __clock_gettime64 (CLOCK_REALTIME, &ts);
  29
  30   timebuf->time = ts.tv_sec;
  31   timebuf->millitm = ts.tv_nsec / 1000000;
  32   timebuf->timezone = 0;
  33   timebuf->dstflag = 0;
  34   return 0;
  35 }
  36 #if __TIMESIZE != 64
  37 libc_hidden_def (__ftime64)
  38
  39 int
  40 ftime (struct timeb *timebuf)
  41 {
  42   struct __timeb64 tb64;
  43   __ftime64 (&tb64);
  44   if (! in_time_t_range (tb64.time))
  45     {
  46       __set_errno (EOVERFLOW);
  47       return -1;
  48     }
  49   timebuf->time = tb64.time;
  50   timebuf->millitm = tb64.millitm;
  51   timebuf->timezone = tb64.timezone;
  52   timebuf->dstflag = tb64.dstflag;
  53   return 0;
  54 }
  55 #endif