1 /* Revoke the access of all descriptors currently open on a file. Hurd version 2 Copyright (C) 1999-2022 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 __revoke(const char * file_name)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) 41