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-.\"-
-.\" Copyright (c) 2000, 2002 Robert N. M. Watson
-.\" All rights reserved.
-.\"
-.\" This software was developed by Robert Watson for the TrustedBSD Project.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\" notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\" notice, this list of conditions and the following disclaimer in the
-.\" documentation and/or other materials provided with the distribution.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\" $FreeBSD: src/lib/libc/posix1e/acl_valid.3,v 1.14 2002/12/29 20:47:05 rwatson Exp $
-.\"
-.Dd December 29, 2002
-.Dt ACL_VALID 3
-.Os
-.Sh NAME
-.Nm acl_valid ,
-.Nm acl_valid_fd_np ,
-.Nm acl_valid_file_np ,
-.Nm acl_valid_link_np
-.Nd validate an ACL
-.Sh LIBRARY
-.Lb libc
-.Sh SYNOPSIS
-.In sys/types.h
-.In sys/acl.h
-.Ft int
-.Fn acl_valid "acl_t acl"
-.Ft int
-.Fn acl_valid_fd_np "int fd" "acl_type_t type" "acl_t acl"
-.Ft int
-.Fn acl_valid_file_np "const char *path_p" "acl_type_t type" "acl_t acl"
-.Ft int
-.Fn acl_valid_link_np "const char *path_p" "acl_type_t type" "acl_t acl"
-.Sh DESCRIPTION
-These functions check that the ACL referred to by the argument
-.Va acl
-is valid. The POSIX.1e routine,
-.Fn acl_valid ,
-checks assumes ACL_TYPE_EXTENDED, and disregard
-of the context in which the ACL is to be used. The non-portable forms,
-.Fn acl_valid_fd_np ,
-.Fn acl_valid_file_np ,
-and
-.Fn acl_valid_link_np
-allow an ACL to be checked in the context of a specific acl type,
-.Va type ,
-and file system object.
-In environments where additional ACL types are
-supported than just POSIX.1e, this makes more sense.
-Whereas
-.Fn acl_valid_file_np
-will follow the symlink if the specified path is to a symlink,
-.Fn acl_valid_link_np
-will not.
-.Pp
-The qualifier field shall be unique among all entries of
-the same POSIX.1e ACL facility defined tag type. The
-tag type field shall contain valid values including any
-implementation-defined values. Validation of the values
-of the qualifier field is implementation-defined.
-.Pp
-The POSIX.1e
-.Fn acl_valid
-function may reorder the ACL for the purposes of verification; the
-non-portable validation functions will not.
-.Sh RETURN VALUES
-.Rv -std
-.Sh ERRORS
-If any of the following conditions occur, these functions shall return
--1 and set
-.Va errno
-to the corresponding value:
-.Bl -tag -width Er
-.It Bq Er EACCES
-Search permission is denied for a component of the path prefix, or the
-object exists and the process does not have appropriate access rights.
-.It Bq Er EBADF
-The
-.Va fd
-argument is not a valid file descriptor.
-.It Bq Er EINVAL
-Argument
-.Va acl
-does not point to a valid ACL.
-.Pp
-One or more of the required ACL entries is not present in
-.Va acl .
-.Pp
-The ACL contains entries that are not unique.
-.Pp
-The file system rejects the ACL based on fs-specific semantics issues.
-.It Bq Er ENAMETOOLONG
-A component of a pathname exceeded 255 characters, or an
-entire path name exceeded 1023 characters.
-.It Bq Er ENOENT
-The named object does not exist, or the
-.Va path_p
-argument points to an empty string.
-.It Bq Er ENOMEM
-Insufficient memory available to fulfill request.
-.It Bq Er EOPNOTSUPP
-The file system does not support ACL retrieval.
-.El
-.Sh SEE ALSO
-.Xr acl 3 ,
-.Xr acl_get 3 ,
-.Xr acl_init 3 ,
-.Xr acl_set 3 ,
-.Xr posix1e 3
-.Sh STANDARDS
-POSIX.1e is described in IEEE POSIX.1e draft 17.
-.Sh AUTHORS
-.An Michael Smith
-.An Robert N M Watson