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. The caller should free any 50releasable memory, when the new ACL is no longer required, by calling 51.Xr acl_free 3 52with the 53.Va (void*)acl_t 54as an argument. 55.Pp 56Any existing ACL pointers that refer to the ACL referred to by 57.Va acl 58shall continue to refer to the ACL. 59.Sh IMPLEMENTATION NOTES 60.Fx Ns 's 61support for POSIX.1e interfaces and features is still under 62development at this time. 63.Sh RETURN VALUES 64Upon successful completion, this function shall return a pointer to the 65duplicate ACL. Otherwise, a value of 66.Va (acl_t)NULL 67shall be returned, and 68.Va errno 69shall be set to indicate the error. 70.Sh ERRORS 71If any of the following conditions occur, the 72.Fn acl_init 73function shall return a value of 74.Va (acl_t)NULL 75and set 76.Va errno 77to the corresponding value: 78.Bl -tag -width Er 79.It Bq Er EINVAL 80Argument 81.Va acl 82does not point to a valid ACL. 83.It Bq Er ENOMEM 84The 85.Va acl_t 86to be returned requires more memory than is allowed by the hardware or 87system-imposed memory management constraints. 88.El 89.Sh SEE ALSO 90.Xr acl 3 , 91.Xr acl_free 3 , 92.Xr acl_get 3 , 93.Xr posix1e 3 94.Sh STANDARDS 95POSIX.1e is described in IEEE POSIX.1e draft 17. Discussion 96of the draft continues on the cross-platform POSIX.1e implementation 97mailing list. To join this list, see the 98.Fx 99POSIX.1e implementation 100page for more information. 101.Sh HISTORY 102POSIX.1e support was introduced in 103.Fx 4.0 , 104and development continues. 105.Sh AUTHORS 106.An Robert N M Watson 107