lib/libposix1e/acl_get.c

   1 /*-
   2  * Copyright (c) 1999 Robert N. M. Watson
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  *$FreeBSD: src/lib/libposix1e/acl_get.c,v 1.3 2000/01/26 04:19:37 rwatson Exp $
  27  *$DragonFly: src/lib/libposix1e/acl_get.c,v 1.3 2005/08/04 17:27:09 drhodus Exp $
  28  */
  29 /*
  30  * acl_get_file - syscall wrapper for retrieving ACL by filename
  31  * acl_get_fd - syscall wrapper for retrieving access ACL by fd
  32  * acl_get_fd_np - syscall wrapper for retrieving ACL by fd (non-POSIX)
  33  */
  34
  35 #include <sys/types.h>
  36 #include <sys/acl.h>
  37 #include <sys/errno.h>
  38 #include <stdlib.h>
  39
  40 acl_t
  41 acl_get_file(const char *path_p, acl_type_t type)
  42 {
  43         struct acl      *aclp;
  44         int     error;
  45
  46         aclp = acl_init(ACL_MAX_ENTRIES);
  47         if (!aclp) {
  48                 return (0);
  49         }
  50
  51         error = __acl_get_file(path_p, type, aclp);
  52         if (error) {
  53                 acl_free(aclp);
  54                 return (0);
  55         }
  56
  57         return (aclp);
  58 }
  59
  60 acl_t
  61 acl_get_fd(int fd)
  62 {
  63         struct acl      *aclp;
  64         int     error;
  65
  66         aclp = acl_init(ACL_MAX_ENTRIES);
  67         if (!aclp) {
  68                 return (0);
  69         }
  70
  71         error = __acl_get_fd(fd, ACL_TYPE_ACCESS, aclp);
  72         if (error) {
  73                 acl_free(aclp);
  74                 return (0);
  75         }
  76
  77         return (aclp);
  78 }
  79
  80 acl_t
  81 acl_get_fd_np(int fd, acl_type_t type)
  82 {
  83         struct acl      *aclp;
  84         int     error;
  85
  86         aclp = acl_init(ACL_MAX_ENTRIES);
  87         if (!aclp) {
  88                 return (0);
  89         }
  90
  91         error = __acl_get_fd(fd, type, aclp);
  92         if (error) {
  93                 acl_free(aclp);
  94                 return (0);
  95         }
  96
  97         return (aclp);
  98 }