time/ctime_r.c

   1 /* Return in BUF representation of time T in form of asctime
   2    Copyright (C) 1996-2023 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 <time.h>
  20
  21 /* Return a string as returned by asctime which is the representation
  22    of *T in that form.  Reentrant version.  */
  23 char *
  24 __ctime64_r (const __time64_t *t, char *buf)
  25 {
  26   struct tm tm;
  27   return __asctime_r (__localtime64_r (t, &tm), buf);
  28 }
  29
  30 /* Provide a 32-bit variant if needed.  */
  31
  32 #if __TIMESIZE != 64
  33
  34 libc_hidden_def (__ctime64_r)
  35
  36 char *
  37 ctime_r (const time_t *t, char *buf)
  38 {
  39   __time64_t t64 = *t;
  40   return __ctime64_r (&t64, buf);
  41 }
  42
  43 #endif