288eac5aed
this syntax violation and while I'm here also convert <TAB> to Ta and adjust quotation marks in order to prevent this problem in the future.
159 lines
4.6 KiB
Groff
159 lines
4.6 KiB
Groff
.\"-
|
|
.\" 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.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd June 25, 2009
|
|
.Dt ACL_TO_TEXT 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm acl_to_text ,
|
|
.Nm acl_to_text_np
|
|
.Nd convert an ACL to text
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.In sys/types.h
|
|
.In sys/acl.h
|
|
.Ft char *
|
|
.Fn acl_to_text "acl_t acl" "ssize_t *len_p"
|
|
.Ft char *
|
|
.Fn acl_to_text_np "acl_t acl" "ssize_t *len_p" "int flags"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn acl_to_text
|
|
and
|
|
.Fn acl_to_text_np
|
|
functions translate the ACL pointed to by argument
|
|
.Va acl
|
|
into a NULL terminated character string.
|
|
If the pointer
|
|
.Va len_p
|
|
is not NULL, then the function shall return the length of the string (not
|
|
including the NULL terminator) in the location pointed to by
|
|
.Va len_p .
|
|
If the ACL is POSIX.1e, the format of the text string returned by
|
|
.Fn acl_to_text
|
|
shall be the POSIX.1e long ACL form. If the ACL is NFSv4, the format
|
|
of the text string shall be the compact form, unless the
|
|
.Va ACL_TEXT_VERBOSE
|
|
flag is given.
|
|
.Pp
|
|
The flags specified are formed by
|
|
.Em or Ns 'ing
|
|
the following values
|
|
.Bl -column -offset 3n "ACL_TEXT_NUMERIC_IDS"
|
|
.It ACL_TEXT_VERBOSE Ta "Format ACL using verbose form"
|
|
.It ACL_TEXT_NUMERIC_IDS Ta "Do not resolve IDs into user or group names"
|
|
.It ACL_TEXT_APPEND_ID Ta "In addition to user and group names, append numeric IDs"
|
|
.El
|
|
.Pp
|
|
This function allocates any memory necessary to contain the string and
|
|
returns a pointer to the string.
|
|
The caller should free any releasable
|
|
memory, when the new string is no longer required, by calling
|
|
.Xr acl_free 3
|
|
with the
|
|
.Va (void*)char
|
|
as an argument.
|
|
.Sh IMPLEMENTATION NOTES
|
|
.Fx Ns 's
|
|
support for POSIX.1e interfaces and features is still under
|
|
development at this time.
|
|
.Sh RETURN VALUES
|
|
Upon successful completion, the function shall return a pointer to the
|
|
long text form of an ACL.
|
|
Otherwise, a value of
|
|
.Va (char*)NULL
|
|
shall be returned and
|
|
.Va errno
|
|
shall be set to indicate the error.
|
|
.Sh ERRORS
|
|
If any of the following conditions occur, the
|
|
.Fn acl_to_text
|
|
function shall return a value of
|
|
.Va (acl_t)NULL
|
|
and set
|
|
.Va errno
|
|
to the corresponding value:
|
|
.Bl -tag -width Er
|
|
.It Bq Er EINVAL
|
|
Argument
|
|
.Va acl
|
|
does not point to a valid ACL.
|
|
.Pp
|
|
The ACL denoted by
|
|
.Va acl
|
|
contains one or more improperly formed ACL entries, or for some other
|
|
reason cannot be translated into a text form of an ACL.
|
|
.It Bq Er ENOMEM
|
|
The character string to be returned requires more memory than is allowed
|
|
by the hardware or software-imposed memory management constraints.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr acl 3 ,
|
|
.Xr acl_free 3 ,
|
|
.Xr acl_from_text 3 ,
|
|
.Xr posix1e 3
|
|
.Sh STANDARDS
|
|
POSIX.1e is described in IEEE POSIX.1e draft 17.
|
|
Discussion
|
|
of the draft continues on the cross-platform POSIX.1e implementation
|
|
mailing list.
|
|
To join this list, see the
|
|
.Fx
|
|
POSIX.1e implementation
|
|
page for more information.
|
|
.Sh HISTORY
|
|
POSIX.1e support was introduced in
|
|
.Fx 4.0 ,
|
|
and development continues.
|
|
.Sh AUTHORS
|
|
.An Robert N M Watson
|
|
.Sh BUGS
|
|
The
|
|
.Fn acl_from_text
|
|
and
|
|
.Fn acl_to_text
|
|
functions
|
|
rely on the
|
|
.Xr getpwent 3
|
|
library calls to manage username and uid mapping, as well as the
|
|
.Xr getgrent 3
|
|
library calls to manage groupname and gid mapping.
|
|
These calls are not
|
|
thread safe, and so transitively, neither are
|
|
.Fn acl_from_text
|
|
and
|
|
.Fn acl_to_text .
|
|
These functions may also interfere with stateful
|
|
calls associated with the
|
|
.Fn getpwent
|
|
and
|
|
.Fn getgrent
|
|
calls.
|