support/xclock_settime.c

   1 /* clock_settime with error checking.
   2    Copyright (C) 2021-2023 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 <stdlib.h>
  20 #include <support/check.h>
  21 #include <support/xtime.h>
  22
  23 void
  24 xclock_settime (clockid_t clockid,
  25                 const struct timespec *ts)
  26 {
  27   if (getenv (SETTIME_ENV_NAME) == NULL)
  28     FAIL_UNSUPPORTED ("clock_settime is executed only when "\
  29                       SETTIME_ENV_NAME" is set\n");
  30
  31   int ret = clock_settime (clockid, ts);
  32   if (ret < 0)
  33     FAIL_EXIT1 ("clock_settime (%d): %m", clockid);
  34 }