posix1e/acl_file.c

   1 /*
   2  * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 /* XXX temporary implementation using __acl__ file */
  25
  26 #include <sys/appleapiopts.h>
  27 #include <sys/types.h>
  28 #include <sys/acl.h>
  29 #include <sys/stat.h>
  30 #include <errno.h>
  31 #include <fcntl.h>
  32 #include <stdlib.h>
  33 #include <stdio.h>
  34 #include <string.h>
  35 #include <unistd.h>
  36
  37 #include "aclvar.h"
  38
  39 static acl_t    acl_get_file1(const char *path, acl_type_t acl_type, int follow);
  40
  41 int acl_delete_fd_np(int filedes, acl_type_t type);
  42 int
  43 acl_delete_fd_np(int filedes, acl_type_t type)
  44 {
  45         errno = ENOTSUP;
  46         return(-1);
  47 }
  48
  49 int acl_delete_file_np(const char *path, acl_type_t type);
  50 int
  51 acl_delete_file_np(const char *path, acl_type_t type)
  52 {
  53         errno = ENOTSUP;
  54         return(-1);
  55 }
  56
  57 int acl_delete_link_np(const char *path, acl_type_t type);
  58 int
  59 acl_delete_link_np(const char *path, acl_type_t type)
  60 {
  61         errno = ENOTSUP;
  62         return(-1);
  63 }
  64
  65 acl_t
  66 acl_get_fd(int fd)
  67 {
  68         return(acl_get_fd_np(fd, ACL_TYPE_EXTENDED));
  69 }
  70
  71 acl_t
  72 acl_get_fd_np(int fd, acl_type_t type)
  73 {
  74         filesec_t       fsec;
  75         acl_t           acl;
  76         struct stat     sb;
  77
  78         if (type != ACL_TYPE_EXTENDED) {
  79                 errno = EINVAL;
  80                 return(NULL);
  81         }
  82         if ((fsec = filesec_init()) == NULL)
  83                 return(NULL);
  84
  85         acl = NULL;
  86         if (fstatx_np(fd, &sb, fsec) == 0)
  87                 filesec_get_property(fsec, FILESEC_ACL, &acl);
  88         filesec_free(fsec);
  89         return(acl);
  90 }
  91
  92 static acl_t
  93 acl_get_file1(const char *path, acl_type_t acl_type, int follow)
  94 {
  95         filesec_t       fsec;
  96         acl_t           acl;
  97         struct stat     sb;
  98
  99         if (acl_type != ACL_TYPE_EXTENDED) {
 100                 errno = EINVAL;
 101                 return(NULL);
 102         }
 103         if ((fsec = filesec_init()) == NULL)
 104                 return(NULL);
 105
 106         acl = NULL;
 107         if ((follow ? statx_np(path, &sb, fsec) : lstatx_np(path, &sb, fsec)) == 0)
 108                 filesec_get_property(fsec, FILESEC_ACL, &acl);
 109         filesec_free(fsec);
 110         return(acl);
 111 }
 112
 113 acl_t
 114 acl_get_file(const char *path, acl_type_t type)
 115 {
 116         return(acl_get_file1(path, type, 1 /* follow */));
 117 }
 118
 119 acl_t
 120 acl_get_link_np(const char *path, acl_type_t type)
 121 {
 122         return(acl_get_file1(path, type, 0 /* no follow */));
 123 }
 124
 125 int
 126 acl_set_fd_np(int fd, acl_t acl, acl_type_t type)
 127 {
 128         filesec_t       fsec;
 129         int             error;
 130
 131         if ((fsec = filesec_init()) == NULL)
 132                 return(-1);
 133         if ((filesec_set_property(fsec, FILESEC_ACL, &acl)) != 0) {
 134                 filesec_free(fsec);
 135                 return(-1);
 136         }
 137         error = fchmodx_np(fd, fsec);
 138         filesec_free(fsec);
 139         return((error == 0) ? 0 : -1);
 140 }
 141
 142 int
 143 acl_set_fd(int fd, acl_t acl)
 144 {
 145         return(acl_set_fd_np(fd, acl, ACL_TYPE_EXTENDED));
 146 }
 147
 148 int
 149 acl_set_file(const char *path, acl_type_t acl_type, acl_t acl)
 150 {
 151         filesec_t       fsec;
 152         int             error;
 153
 154         if ((fsec = filesec_init()) == NULL)
 155                 return(-1);
 156         if (filesec_set_property(fsec, FILESEC_ACL, &acl) != 0) {
 157                 filesec_free(fsec);
 158                 return(-1);
 159         }
 160         error = chmodx_np(path, fsec);
 161         filesec_free(fsec);
 162         return((error == 0) ? 0 : -1);
 163 }
 164
 165 int
 166 acl_set_link_np(const char *path, acl_type_t acl_type, acl_t acl)
 167 {
 168         struct stat s;
 169
 170         if(lstat(path, &s) < 0)
 171                 return(-1);
 172         if(S_ISLNK(s.st_mode)) {
 173                 errno = ENOTSUP;
 174                 return(-1);
 175         }
 176         return(acl_set_file(path, acl_type, acl));
 177 }
 178
 179 /*
 180  * Not applicable; not supported.
 181  */
 182 int
 183 acl_delete_def_file(__unused const char *path)
 184 {
 185         errno = ENOTSUP;
 186         return(-1);
 187 }