1.\"- 2.\" Copyright (c) 2000 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_init.3,v 1.2.2.5 2001/12/20 16:27:06 ru Exp $ 27.\" $DragonFly: src/lib/libposix1e/acl_init.3,v 1.3 2004/03/11 12:28:52 hmp Exp $ 28.\" 29.Dd January 28, 2000 30.Dt ACL_INIT 3 31.Os 32.Sh NAME 33.Nm acl_init 34.Nd initialize ACL working storage 35.Sh LIBRARY 36.Lb libposix1e 37.Sh SYNOPSIS 38.In sys/types.h 39.In sys/acl.h 40.Ft acl_t 41.Fn acl_init "int count" 42.Sh DESCRIPTION 43The 44.Fn acl_init 45function allocates and initializes the working storage for an ACL of at 46least 47.Va count 48ACL entries. A pointer to the working storage is returned. The working 49storage allocated to contain the ACL is freed by a call to 50.Xr acl_free 3 . 51When the area is first allocated, it shall contain an ACL that contains 52no ACL entries. 53.Pp 54This function may cause memory to be allocated. The caller should free any 55releasable memory, when the new ACL is no longer required, by calling 56.Xr acl_free 3 57with the 58.Va (void*)acl_t 59as an argument. 60.Sh IMPLEMENTATION NOTES 61.Dx 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 66working storage. Otherwise, a value of 67.Va (acl_t)NULL 68shall be returned, and 69.Va errno 70shall be set to indicate the error. 71.Sh ERRORS 72If any of the following conditions occur, the 73.Fn acl_init 74function shall return a value of 75.Va (acl_t)NULL 76and set 77.Va errno 78to the corresponding value: 79.Bl -tag -width Er 80.It Bq Er EINVAL 81The value of count is less than zero. 82.It Bq Er ENOMEM 83The 84.Va acl_t 85to be returned requires more memory than is allowed by the hardware or 86system-imposed memory management constraints. 87.El 88.Sh SEE ALSO 89.Xr acl 3 , 90.Xr acl_free 3 , 91.Xr posix1e 3 92.Sh STANDARDS 93POSIX.1e is described in IEEE POSIX.1e draft 17. Discussion 94of the draft continues on the cross-platform POSIX.1e implementation 95mailing list. To join this list, see the 96.Fx 97POSIX.1e implementation 98page for more information. 99.Sh HISTORY 100POSIX.1e support was introduced in 101.Fx 4.0 , 102and development continues. 103.Sh AUTHORS 104.An Robert N M Watson 105.Sh BUGS 106These features are not yet fully implemented. In particular, the shipped 107version of UFS/FFS does not support storage of additional security labels, 108and so is unable to (easily) provide support for most of these features. 109