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annotate lib/acl-internal.h @ 10114:51164d97e89b

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Make copy_acl work on MacOS X 10.5.
author Bruno Haible <bruno@clisp.org>
date Fri, 23 May 2008 01:13:51 +0200
parents 29794e333189
children 4e8f2032eb4d
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1 /* Internal implementation of access control lists.
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2
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3 Copyright (C) 2002-2003, 2005-2008 Free Software Foundation, Inc.
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4
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5 This program is free software: you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation; either version 3 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program. If not, see <http://www.gnu.org/licenses/>.
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17
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18 Written by Paul Eggert and Andreas Gruenbacher. */
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19
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20 #include "acl.h"
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21
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22 #include <stdbool.h>
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23 #include <stdlib.h>
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24
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25 /* All systems define the ACL related API in <sys/acl.h>. */
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26 #if HAVE_SYS_ACL_H
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27 # include <sys/acl.h>
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28 #endif
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29 #if defined HAVE_ACL && ! defined GETACLCNT && defined ACL_CNT
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30 # define GETACLCNT ACL_CNT
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31 #endif
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32
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33 /* On Linux, additional ACL related API is available in <acl/libacl.h>. */
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34 #ifdef HAVE_ACL_LIBACL_H
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35 # include <acl/libacl.h>
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36 #endif
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37
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38 #include "error.h"
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39 #include "quote.h"
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40
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41 #include <errno.h>
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42 #ifndef ENOSYS
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43 # define ENOSYS (-1)
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44 #endif
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45 #ifndef ENOTSUP
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46 # define ENOTSUP (-1)
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47 #endif
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48
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49 #include "gettext.h"
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50 #define _(msgid) gettext (msgid)
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51
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52 #ifndef HAVE_FCHMOD
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53 # define HAVE_FCHMOD false
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54 # define fchmod(fd, mode) (-1)
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55 #endif
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56
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57 #ifndef MIN_ACL_ENTRIES
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58 # define MIN_ACL_ENTRIES 4
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59 #endif
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60
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61 /* POSIX 1003.1e (draft 17) */
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62 #ifndef HAVE_ACL_GET_FD
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63 # define HAVE_ACL_GET_FD false
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64 # undef acl_get_fd
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65 # define acl_get_fd(fd) (NULL)
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66 #endif
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67
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68 /* POSIX 1003.1e (draft 17) */
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69 #ifndef HAVE_ACL_SET_FD
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70 # define HAVE_ACL_SET_FD false
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71 # undef acl_set_fd
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72 # define acl_set_fd(fd, acl) (-1)
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73 #endif
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74
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75 /* Linux-specific */
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76 #ifndef HAVE_ACL_EXTENDED_FILE
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77 # define HAVE_ACL_EXTENDED_FILE false
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78 # define acl_extended_file(name) (-1)
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79 #endif
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80
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81 /* Linux-specific */
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82 #ifndef HAVE_ACL_FROM_MODE
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83 # define HAVE_ACL_FROM_MODE false
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84 # define acl_from_mode(mode) (NULL)
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85 #endif
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86
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87 /* Set to 1 if a file's mode is implicit by the ACL.
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88 Set to 0 if a file's mode is stored independently from the ACL. */
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89 #if HAVE_ACL_COPY_EXT_NATIVE && HAVE_ACL_CREATE_ENTRY_NP /* MacOS X */
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90 # define MODE_INSIDE_ACL 0
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91 #else
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92 # define MODE_INSIDE_ACL 1
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93 #endif
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94
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95 #if defined __APPLE__ && defined __MACH__ /* MacOS X */
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96 # define ACL_NOT_WELL_SUPPORTED(Err) \
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97 ((Err) == ENOTSUP || (Err) == ENOSYS || (Err) == EINVAL || (Err) == EBUSY || (Err) == ENOENT)
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98 #else
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99 # define ACL_NOT_WELL_SUPPORTED(Err) \
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100 ((Err) == ENOTSUP || (Err) == ENOSYS || (Err) == EINVAL || (Err) == EBUSY)
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101 #endif
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102
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103 /* Define a replacement for acl_entries if needed. */
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104 #if USE_ACL && HAVE_ACL_GET_FILE && HAVE_ACL_FREE && !HAVE_ACL_ENTRIES
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105 # define acl_entries rpl_acl_entries
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106 int acl_entries (acl_t);
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107 #endif