posix1e/acl.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 #include <sys/appleapiopts.h>
  25 #include <sys/types.h>
  26 #include <sys/acl.h>
  27 #include <errno.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30
  31 #include "aclvar.h"
  32
  33 acl_t
  34 acl_dup(acl_t acl)
  35 {
  36         struct _acl     *ap;
  37
  38         if (!_ACL_VALID_ACL(acl)) {
  39                 errno = EINVAL;
  40                 return(NULL);
  41         }
  42
  43         if ((ap = malloc(sizeof(*ap))) != NULL)
  44                 bcopy(acl, ap, sizeof(*ap));
  45         return(ap);
  46 }
  47
  48 int
  49 acl_free(void *obj)
  50 {
  51         /*
  52          * Without tracking the addresses of text buffers and qualifiers,
  53          * we can't validate the obj argument here at all.
  54          */
  55         free(obj);
  56         return(0);
  57 }
  58
  59 acl_t
  60 acl_init(int count)
  61 {
  62         struct _acl     *ap;
  63
  64         /* validate count */
  65         if (count < 0) {
  66                 errno = EINVAL;
  67                 return(NULL);
  68         }
  69         if (count > ACL_MAX_ENTRIES) {
  70                 errno = ENOMEM;
  71                 return(NULL);
  72         }
  73
  74         if ((ap = malloc(sizeof (*ap))) != NULL) {
  75                 bzero(ap, sizeof(*ap));
  76                 ap->a_magic = _ACL_ACL_MAGIC;
  77                 ap->a_last_get = -1;
  78         }
  79         return(ap);
  80 }
  81
  82 int
  83 acl_valid(acl_t acl)
  84 {
  85         _ACL_VALIDATE_ACL(acl);
  86
  87         /* XXX */
  88         return(0);
  89 }
  90
  91 int
  92 acl_valid_fd_np(int fd, acl_type_t type, acl_t acl)
  93 {
  94         errno = ENOTSUP;        /* XXX */
  95         return(-1);
  96 }
  97
  98 int
  99 acl_valid_file_np(const char *path, acl_type_t type, acl_t acl)
 100 {
 101         errno = ENOTSUP;        /* XXX */
 102         return(-1);
 103 }
 104
 105 int
 106 acl_valid_link(const char *path, acl_type_t type, acl_t acl)
 107 {
 108         errno = ENOTSUP;        /* XXX */
 109         return(-1);
 110 }
 111
 112 /*
 113  * Not applicable; not supportedl
 114  */
 115 int
 116 acl_calc_mask(__unused acl_t *acl_p)
 117 {
 118         errno = ENOTSUP;
 119         return(-1);
 120 }