1.\"- 2.\" Copyright (c) 2000, 2002 Robert N. M. Watson 3.\" All rights reserved. 4.\" 5.\" This software was developed by Robert Watson for the TrustedBSD Project. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" $FreeBSD$ 29.\" 30.Dd January 28, 2000 31.Dt ACL_DUP 3 32.Os 33.Sh NAME 34.Nm acl_dup 35.Nd duplicate an ACL 36.Sh LIBRARY 37.Lb libc 38.Sh SYNOPSIS 39.In sys/types.h 40.In sys/acl.h 41.Ft acl_t 42.Fn acl_dup "acl_t acl" 43.Sh DESCRIPTION 44The 45.Fn acl_dup 46function returns a pointer to a copy of the ACL pointed to by the argument 47.Va acl . 48.Pp 49This function may cause memory to be allocated. 50The caller should free any 51releasable memory, when the new ACL is no longer required, by calling 52.Xr acl_free 3 53with the 54.Va (void*)acl_t 55as an argument. 56.Pp 57Any existing ACL pointers that refer to the ACL referred to by 58.Va acl 59shall continue to refer to the ACL. 60.Sh IMPLEMENTATION NOTES 61.Fx Ns 's 62support for POSIX.1e interfaces and features is still under 63development at this time. 64.Sh RETURN VALUES 65Upon successful completion, this function shall return a pointer to the 66duplicate ACL. 67Otherwise, a value of 68.Va (acl_t)NULL 69shall be returned, and 70.Va errno 71shall be set to indicate the error. 72.Sh ERRORS 73If any of the following conditions occur, the 74.Fn acl_init 75function shall return a value of 76.Va (acl_t)NULL 77and set 78.Va errno 79to the corresponding value: 80.Bl -tag -width Er 81.It Bq Er EINVAL 82Argument 83.Va acl 84does not point to a valid ACL. 85.It Bq Er ENOMEM 86The 87.Va acl_t 88to be returned requires more memory than is allowed by the hardware or 89system-imposed memory management constraints. 90.El 91.Sh SEE ALSO 92.Xr acl 3 , 93.Xr acl_free 3 , 94.Xr acl_get 3 , 95.Xr posix1e 3 96.Sh STANDARDS 97POSIX.1e is described in IEEE POSIX.1e draft 17. 98Discussion 99of the draft continues on the cross-platform POSIX.1e implementation 100mailing list. 101To join this list, see the 102.Fx 103POSIX.1e implementation 104page for more information. 105.Sh HISTORY 106POSIX.1e support was introduced in 107.Fx 4.0 , 108and development continues. 109.Sh AUTHORS 110.An Robert N M Watson 111