156 lines
4.5 KiB
Groff
156 lines
4.5 KiB
Groff
.\"-
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.\" Copyright (c) 2000, 2002 Robert N. M. Watson
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.\" All rights reserved.
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.\"
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.\" This software was developed by Robert Watson for the TrustedBSD Project.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.Dd June 25, 2009
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.Dt ACL_SET 3
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.Os
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.Sh NAME
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.Nm acl_set_fd ,
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.Nm acl_set_fd_np ,
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.Nm acl_set_file ,
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.Nm acl_set_link_np
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.Nd set an ACL for a file
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.In sys/types.h
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.In sys/acl.h
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.Ft int
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.Fn acl_set_fd "int fd" "acl_t acl"
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.Ft int
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.Fn acl_set_fd_np "int fd" "acl_t acl" "acl_type_t type"
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.Ft int
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.Fn acl_set_file "const char *path_p" "acl_type_t type" "acl_t acl"
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.Ft int
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.Fn acl_set_link_np "const char *path_p" "acl_type_t type" "acl_t acl"
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.Sh DESCRIPTION
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The
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.Fn acl_set_fd ,
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.Fn acl_set_fd_np ,
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.Fn acl_set_file ,
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and
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.Fn acl_set_link_np
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each associate an ACL with an object referred to by
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.Va fd
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or
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.Va path_p .
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The
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.Fn acl_set_fd_np
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and
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.Fn acl_set_link_np
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functions are not POSIX.1e calls.
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The
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.Fn acl_set_fd
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function allows only the setting of ACLs of type ACL_TYPE_ACCESS
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where as
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.Fn acl_set_fd_np
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allows the setting of ACLs of any type.
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The
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.Fn acl_set_link_np
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function acts on a symlink rather than its target, if the target of the
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path is a symlink.
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.Pp
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Valid values for the
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.Va type
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argument are:
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.Bl -column -offset 3n "ACL_TYPE_DEFAULT"
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.It ACL_TYPE_ACCESS POSIX.1e access ACL
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.It ACL_TYPE_DEFAULT POSIX.1e default ACL
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.It ACL_TYPE_NFS4 NFSv4 ACL
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.El
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.Pp
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Trying to set ACL_TYPE_NFS4 with
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.Va acl
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branded as POSIX.1e, or ACL_TYPE_ACCESS or ACL_TYPE_DEFAULT with ACL
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branded as NFSv4, will result in error.
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.Sh IMPLEMENTATION NOTES
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.Fx Ns 's
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support for POSIX.1e interfaces and features is still under
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development at this time.
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.Sh RETURN VALUES
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.Rv -std
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.Sh ERRORS
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If any of the following conditions occur, these functions shall return
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-1 and set
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.Va errno
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to the corresponding value:
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.Bl -tag -width Er
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.It Bq Er EACCES
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Search permission is denied for a component of the path prefix, or the
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object exists and the process does not have appropriate access rights.
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.It Bq Er EBADF
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The
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.Va fd
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argument is not a valid file descriptor.
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.It Bq Er EINVAL
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Argument
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.Va acl
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does not point to a valid ACL for this object, or the ACL type
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specified in
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.Va type
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is invalid for this object, or there is branding mismatch.
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.It Bq Er ENAMETOOLONG
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A component of a pathname exceeded 255 characters, or an
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entire path name exceeded 1023 characters.
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.It Bq Er ENOENT
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The named object does not exist, or the
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.Va path_p
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argument points to an empty string.
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.It Bq Er ENOMEM
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Insufficient memory available to fulfill request.
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.It Bq Er ENOSPC
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The directory or file system that would contain the new ACL cannot be
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extended, or the file system is out of file allocation resources.
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.It Bq Er EOPNOTSUPP
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The file system does not support ACL retrieval.
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.It Bq Er EROFS
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This function requires modification of a file system which is currently
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read-only.
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.El
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.Sh SEE ALSO
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.Xr acl 3 ,
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.Xr acl_delete 3 ,
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.Xr acl_get 3 ,
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.Xr acl_get_brand_np 3 ,
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.Xr acl_valid 3 ,
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.Xr posix1e 3
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.Sh STANDARDS
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POSIX.1e is described in IEEE POSIX.1e draft 17.
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Discussion
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of the draft continues on the cross-platform POSIX.1e implementation
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mailing list.
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To join this list, see the
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.Fx
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POSIX.1e implementation
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page for more information.
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.Sh HISTORY
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POSIX.1e support was introduced in
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.Fx 4.0 ,
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and development continues.
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.Sh AUTHORS
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.An Robert N M Watson
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