2 .\" Copyright (c) 2000 Robert N. M. Watson
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26 .\" $FreeBSD: src/lib/libposix1e/acl_get.3,v 1.3.2.5 2001/12/20 16:27:06 ru Exp $
27 .\" $DragonFly: src/lib/libposix1e/acl_get.3,v 1.3 2004/03/11 12:28:52 hmp Exp $
36 .Nd get an ACL for a file
43 .Fn acl_get_file "const char *path_p" "acl_type_t type"
45 .Fn acl_get_fd "int fd"
47 .Fn acl_get_fd_np "int fd" "acl_type_t type"
54 each allow the retrieval of an ACL from a file.
56 is a POSIX.1e call that allows the retrieval of a
57 specified type of ACL from a file by name;
59 is a POSIX.1e call that allows the retrieval of an ACL of type
61 from a file descriptor.
63 is a non-portable form of
65 that allows the retrieval of any type of ACL from a file descriptor.
67 This function may cause memory to be allocated. The caller should free
68 any releasable memory, when the new ACL is no longer required, by calling
74 The ACL in the working storage is an independent copy of the ACL associated
75 with the object referred to by
77 The ACL in the working storage shall not participate in any access control
79 .Sh IMPLEMENTATION NOTES
81 support for POSIX.1e interfaces and features is still under
82 development at this time.
84 Upon successful completion, the function shall return a pointer to the ACL
85 that was retrieved. Otherwise, a value of
87 shall be returned, and
89 shall be set to indicate the error.
91 If any of the following conditions occur, the
93 function shall return a value of
97 to the corresponding value:
100 Search permission is denied for a component of the path prefix, or the
101 object exists and the process does not have appropriate access rights.
105 argument is not a valid file descriptor.
107 The ACL type passed is invalid for this file object.
108 .It Bq Er ENAMETOOLONG
109 A component of a pathname exceeded 255 characters, or an
110 entire path name exceeded 1023 characters.
112 The named object does not exist, or the
114 argument points to an empty string.
116 Insufficient memory available to fulfill request.
118 The file system does not support ACL retrieval.
127 POSIX.1e is described in IEEE POSIX.1e draft 17. Discussion
128 of the draft continues on the cross-platform POSIX.1e implementation
129 mailing list. To join this list, see the
131 POSIX.1e implementation
132 page for more information.
134 POSIX.1e support was introduced in
136 and development continues.
138 .An Robert N M Watson
140 These features are not yet fully implemented. In particular, the shipped
141 version of UFS/FFS does not support storage of additional security labels,
142 and so is unable to (easily) provide support for most of these features.