From 0ecb606cb6cf65de1d9fc8a919bceb4be476c602 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Thu, 12 Jul 2007 18:26:36 +0000 Subject: 2.5-18.1 --- sysdeps/mach/hurd/faccessat.c | 70 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 sysdeps/mach/hurd/faccessat.c (limited to 'sysdeps/mach/hurd/faccessat.c') diff --git a/sysdeps/mach/hurd/faccessat.c b/sysdeps/mach/hurd/faccessat.c new file mode 100644 index 0000000000..bb3c9fe19f --- /dev/null +++ b/sysdeps/mach/hurd/faccessat.c @@ -0,0 +1,70 @@ +/* Test for access to file, relative to open directory. Hurd version. + Copyright (C) 2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include +#include +#include +#include +#include +#include +#include + +int +faccessat (fd, file, type, flag) + int fd; + const char *file; + int type; + int flag; +{ + error_t err; + file_t port; + int allowed, flags; + + if ((flag & AT_EACCESS) == 0) + { + if (fd == AT_FDCWD || file[0] == '/') + return __access (file, type); + __set_errno (ENOTSUP); /* XXX later */ + return -1; + } + + port = __file_name_lookup_at (fd, flag &~ AT_EACCESS, file, 0, 0); + if (port == MACH_PORT_NULL) + return -1; + + /* Find out what types of access we are allowed to this file. */ + err = __file_check_access (port, &allowed); + __mach_port_deallocate (__mach_task_self (), port); + if (err) + return __hurd_fail (err); + + flags = 0; + if (type & R_OK) + flags |= O_READ; + if (type & W_OK) + flags |= O_WRITE; + if (type & X_OK) + flags |= O_EXEC; + + if (flags & ~allowed) + /* We are not allowed all the requested types of access. */ + return __hurd_fail (EACCES); + + return 0; +} -- cgit v1.2.3-65-gdbad