1.\" $NetBSD: acl_set.3,v 1.2 2020/06/18 19:46:34 wiz Exp $ 2.\"- 3.\" Copyright (c) 2000, 2002 Robert N. M. Watson 4.\" All rights reserved. 5.\" 6.\" This software was developed by Robert Watson for the TrustedBSD Project. 7.\" 8.\" Redistribution and use in source and binary forms, with or without 9.\" modification, are permitted provided that the following conditions 10.\" are met: 11.\" 1. Redistributions of source code must retain the above copyright 12.\" notice, this list of conditions and the following disclaimer. 13.\" 2. Redistributions in binary form must reproduce the above copyright 14.\" notice, this list of conditions and the following disclaimer in the 15.\" documentation and/or other materials provided with the distribution. 16.\" 17.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27.\" SUCH DAMAGE. 28.\" 29.\" $FreeBSD: head/lib/libc/posix1e/acl_set.3 213573 2010-10-08 12:40:16Z uqs $ 30.\" 31.Dd June 25, 2009 32.Dt ACL_SET 3 33.Os 34.Sh NAME 35.Nm acl_set_fd , 36.Nm acl_set_fd_np , 37.Nm acl_set_file , 38.Nm acl_set_link_np 39.Nd set an ACL for a file 40.Sh LIBRARY 41.Lb libc 42.Sh SYNOPSIS 43.In sys/types.h 44.In sys/acl.h 45.Ft int 46.Fn acl_set_fd "int fd" "acl_t acl" 47.Ft int 48.Fn acl_set_fd_np "int fd" "acl_t acl" "acl_type_t type" 49.Ft int 50.Fn acl_set_file "const char *path_p" "acl_type_t type" "acl_t acl" 51.Ft int 52.Fn acl_set_link_np "const char *path_p" "acl_type_t type" "acl_t acl" 53.Sh DESCRIPTION 54The 55.Fn acl_set_fd , 56.Fn acl_set_fd_np , 57.Fn acl_set_file , 58and 59.Fn acl_set_link_np 60each associate an ACL with an object referred to by 61.Va fd 62or 63.Va path_p . 64The 65.Fn acl_set_fd_np 66and 67.Fn acl_set_link_np 68functions are not POSIX.1e calls. 69The 70.Fn acl_set_fd 71function allows only the setting of ACLs of type ACL_TYPE_ACCESS 72where as 73.Fn acl_set_fd_np 74allows the setting of ACLs of any type. 75The 76.Fn acl_set_link_np 77function acts on a symlink rather than its target, if the target of the 78path is a symlink. 79.Pp 80Valid values for the 81.Va type 82argument are: 83.Bl -column -offset 3n "ACL_TYPE_DEFAULT" 84.It ACL_TYPE_ACCESS POSIX.1e access ACL 85.It ACL_TYPE_DEFAULT POSIX.1e default ACL 86.It ACL_TYPE_NFS4 NFSv4 ACL 87.El 88.Pp 89Trying to set ACL_TYPE_NFS4 with 90.Va acl 91branded as POSIX.1e, or ACL_TYPE_ACCESS or ACL_TYPE_DEFAULT with ACL 92branded as NFSv4, will result in error. 93.Sh IMPLEMENTATION NOTES 94.Fx Ns 's 95support for POSIX.1e interfaces and features is still under 96development at this time. 97.Sh RETURN VALUES 98.Rv -std 99.Sh ERRORS 100If any of the following conditions occur, these functions shall return 101-1 and set 102.Va errno 103to the corresponding value: 104.Bl -tag -width Er 105.It Bq Er EACCES 106Search permission is denied for a component of the path prefix, or the 107object exists and the process does not have appropriate access rights. 108.It Bq Er EBADF 109The 110.Va fd 111argument is not a valid file descriptor. 112.It Bq Er EINVAL 113Argument 114.Va acl 115does not point to a valid ACL for this object, or the ACL type 116specified in 117.Va type 118is invalid for this object, or there is branding mismatch. 119.It Bq Er ENAMETOOLONG 120A component of a pathname exceeded 255 characters, or an 121entire path name exceeded 1023 characters. 122.It Bq Er ENOENT 123The named object does not exist, or the 124.Va path_p 125argument points to an empty string. 126.It Bq Er ENOMEM 127Insufficient memory available to fulfill request. 128.It Bq Er ENOSPC 129The directory or file system that would contain the new ACL cannot be 130extended, or the file system is out of file allocation resources. 131.It Bq Er EOPNOTSUPP 132The file system does not support ACL retrieval. 133.It Bq Er EROFS 134This function requires modification of a file system which is currently 135read-only. 136.El 137.Sh SEE ALSO 138.Xr acl 3 , 139.Xr acl_delete 3 , 140.Xr acl_get 3 , 141.Xr acl_get_brand_np 3 , 142.Xr acl_valid 3 , 143.Xr posix1e 3 144.Sh STANDARDS 145POSIX.1e is described in IEEE POSIX.1e draft 17. 146Discussion 147of the draft continues on the cross-platform POSIX.1e implementation 148mailing list. 149To join this list, see the 150.Fx 151POSIX.1e implementation 152page for more information. 153.Sh HISTORY 154POSIX.1e support was introduced in 155.Fx 4.0 , 156and development continues. 157.Sh AUTHORS 158.An Robert N M Watson 159