1: /* Internal implementation of access control lists.
    2: 
    3:    Copyright (C) 2002, 2003, 2005, 2006, 2007 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 2, or (at your option)
    8:    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, write to the Free Software Foundation,
   17:    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
   18: 
   19:    Written by Paul Eggert and Andreas Gruenbacher.  */
   20: 
   21: #include <config.h>
   22: 
   23: #include "acl.h"
   24: 
   25: #include <stdbool.h>
   26: #include <stdlib.h>
   27: 
   28: #ifdef HAVE_ACL_LIBACL_H
   29: # include <acl/libacl.h>
   30: #endif
   31: 
   32: #include "error.h"
   33: #include "quote.h"
   34: 
   35: #include <errno.h>
   36: #ifndef ENOSYS
   37: # define ENOSYS (-1)
   38: #endif
   39: #ifndef ENOTSUP
   40: # define ENOTSUP (-1)
   41: #endif
   42: 
   43: #include "gettext.h"
   44: #define _(msgid) gettext (msgid)
   45: 
   46: #ifndef HAVE_FCHMOD
   47: # define HAVE_FCHMOD false
   48: # define fchmod(fd, mode) (-1)
   49: #endif
   50: 
   51: #ifndef MIN_ACL_ENTRIES
   52: # define MIN_ACL_ENTRIES 4
   53: #endif
   54: 
   55: /* POSIX 1003.1e (draft 17) */
   56: #ifndef HAVE_ACL_GET_FD
   57: # define HAVE_ACL_GET_FD false
   58: # define acl_get_fd(fd) (NULL)
   59: #endif
   60: 
   61: /* POSIX 1003.1e (draft 17) */
   62: #ifndef HAVE_ACL_SET_FD
   63: # define HAVE_ACL_SET_FD false
   64: # define acl_set_fd(fd, acl) (-1)
   65: #endif
   66: 
   67: /* Linux-specific */
   68: #ifndef HAVE_ACL_EXTENDED_FILE
   69: # define HAVE_ACL_EXTENDED_FILE false
   70: # define acl_extended_file(name) (-1)
   71: #endif
   72: 
   73: /* Linux-specific */
   74: #ifndef HAVE_ACL_FROM_MODE
   75: # define HAVE_ACL_FROM_MODE false
   76: # define acl_from_mode(mode) (NULL)
   77: #endif
   78: 
   79: #define ACL_NOT_WELL_SUPPORTED(Errno) \
   80:   ((Errno) == ENOTSUP || (Errno) == ENOSYS || (Errno) == EINVAL)
   81: 
   82: /* Define a replacement for acl_entries if needed.  */
   83: #if USE_ACL && HAVE_ACL_GET_FILE && HAVE_ACL_FREE && !HAVE_ACL_ENTRIES
   84: # define acl_entries rpl_acl_entries
   85: int acl_entries (acl_t);
   86: #endif