1  /* Revoke the access of all descriptors currently open on a file.  Hurd version
       2     Copyright (C) 1999-2023 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 <unistd.h>
      20  #include <errno.h>
      21  #include <hurd.h>
      22  
      23  int
      24  __revoke (const char *file_name)
      25  {
      26    error_t err;
      27    file_t file = __file_name_lookup (file_name, 0, 0);
      28  
      29    if (file == MACH_PORT_NULL)
      30      return -1;
      31  
      32    err = __io_revoke (file);
      33    __mach_port_deallocate (__mach_task_self (), file);
      34  
      35    if (err)
      36      return __hurd_fail (err);
      37    return 0;
      38  }
      39  
      40  weak_alias (__revoke, revoke)