2 .\" Copyright (c) 2000 Robert N. M. Watson
3 .\" All rights reserved.
5 .\" Redistribution and use in source and binary forms, with or without
6 .\" modification, are permitted provided that the following conditions
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.
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
26 .\" $FreeBSD: src/lib/libposix1e/acl_get.3,v 1.3.2.5 2001/12/20 16:27:06 ru Exp $
35 .Nd get an ACL for a file
42 .Fn acl_get_file "const char *path_p" "acl_type_t type"
44 .Fn acl_get_fd "int fd"
46 .Fn acl_get_fd_np "int fd" "acl_type_t type"
53 each allow the retrieval of an ACL from a file.
55 is a POSIX.1e call that allows the retrieval of a
56 specified type of ACL from a file by name;
58 is a POSIX.1e call that allows the retrieval of an ACL of type
60 from a file descriptor.
62 is a non-portable form of
64 that allows the retrieval of any type of ACL from a file descriptor.
66 This function may cause memory to be allocated. The caller should free
67 any releasable memory, when the new ACL is no longer required, by calling
73 The ACL in the working storage is an independent copy of the ACL associated
74 with the object referred to by
76 The ACL in the working storage shall not participate in any access control
78 .Sh IMPLEMENTATION NOTES
80 support for POSIX.1e interfaces and features is still under
81 development at this time.
83 Upon successful completion, the function shall return a pointer to the ACL
84 that was retrieved. Otherwise, a value of
86 shall be returned, and
88 shall be set to indicate the error.
90 If any of the following conditions occur, the
92 function shall return a value of
96 to the corresponding value:
99 Search permission is denied for a component of the path prefix, or the
100 object exists and the process does not have appropriate access rights.
104 argument is not a valid file descriptor.
106 The ACL type passed is invalid for this file object.
107 .It Bq Er ENAMETOOLONG
108 A component of a pathname exceeded 255 characters, or an
109 entire path name exceeded 1023 characters.
111 The named object does not exist, or the
113 argument points to an empty string.
115 Insufficient memory available to fulfill request.
117 The file system does not support ACL retrieval.
126 POSIX.1e is described in IEEE POSIX.1e draft 17. Discussion
127 of the draft continues on the cross-platform POSIX.1e implementation
128 mailing list. To join this list, see the
130 POSIX.1e implementation
131 page for more information.
133 POSIX.1e support was introduced in
135 and development continues.
137 .An Robert N M Watson
139 These features are not yet fully implemented. In particular, the shipped
140 version of UFS/FFS does not support storage of additional security labels,
141 and so is unable to (easily) provide support for most of these features.