1  /* Report a save- or restore-cwd failure in our openat replacement and then exit.
       2  
       3     Copyright (C) 2005-2006, 2008-2023 Free Software Foundation, Inc.
       4  
       5     This program is free software: you can redistribute it and/or modify
       6     it under the terms of the GNU General Public License as published by
       7     the Free Software Foundation, either version 3 of the License, or
       8     (at your option) any later version.
       9  
      10     This program 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
      13     GNU General Public License for more details.
      14  
      15     You should have received a copy of the GNU General Public License
      16     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <config.h>
      19  
      20  #include "openat.h"
      21  
      22  #include <stdlib.h>
      23  
      24  #ifndef GNULIB_LIBPOSIX
      25  # include "error.h"
      26  #endif
      27  
      28  #include "exitfail.h"
      29  
      30  #include "gettext.h"
      31  #define _(msgid) gettext (msgid)
      32  
      33  _Noreturn void
      34  openat_save_fail (int errnum)
      35  {
      36  #ifndef GNULIB_LIBPOSIX
      37    error (exit_failure, errnum,
      38           _("unable to record current working directory"));
      39  #endif
      40    /* _Noreturn cannot be applied to error, since it returns
      41       when its first argument is 0.  To help compilers understand that this
      42       function does not return, call abort.  Also, the abort is a
      43       safety feature if exit_failure is 0 (which shouldn't happen).  */
      44    abort ();
      45  }
      46  
      47  
      48  /* Exit with an error about failure to restore the working directory
      49     during an openat emulation.  The caller must ensure that fd 2 is
      50     not a just-opened fd, even when openat_safer is not in use.  */
      51  
      52  _Noreturn void
      53  openat_restore_fail (int errnum)
      54  {
      55  #ifndef GNULIB_LIBPOSIX
      56    error (exit_failure, errnum,
      57           _("failed to return to initial working directory"));
      58  #endif
      59  
      60    /* As above.  */
      61    abort ();
      62  }