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Undocument the details of the string returned by file-acl.

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doc/lispref/files.texi (File Attributes, Changing Files): Remove the details
 about the text returned by file-acl.  Instead, just document that
 it is an opaque string meant to be used by set-file-acl.
This commit is contained in:
Eli Zaretskii 2012-12-22 16:18:11 +02:00
parent cdb0753962
commit 04d9b71ab7
2 changed files with 17 additions and 25 deletions
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6
doc/lispref/ChangeLog
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@ -1,3 +1,9 @@
2012-12-22 Eli Zaretskii <eliz@gnu.org>
* files.texi (File Attributes, Changing Files): Remove the details
about the text returned by file-acl. Instead, just document that
it is an opaque string meant to be used by set-file-acl.
2012-12-21 Chong Yidong <cyd@gnu.org>
* modes.texi (Auto Major Mode): Fix typo (Bug#13230).

36
doc/lispref/files.texi
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@ -1356,31 +1356,17 @@ support, then the return value is @code{(nil nil nil nil)}.
@cindex ACL entries
If Emacs has been compiled with @dfn{ACL} (access control list)
support, you can use the function @code{file-acl} to retrieve a file's
ACL entries. The format is platform-specific; on GNU/Linux and BSD,
Emacs uses the POSIX ACL interface, while on MS-Windows Emacs emulates
the POSIX ACL interface with native file security APIs. For the
function @code{set-file-acl}, see @ref{Changing Files}.
ACL entries. The interface implementation is platform-specific; on
GNU/Linux and BSD, Emacs uses the POSIX ACL interface, while on
MS-Windows Emacs emulates the POSIX ACL interface with native file
security APIs.
@defun file-acl filename
This function returns the ACL entries of the file @var{filename}.
The return value is a string containing the textual representation of
the ACL entries. On Posix hosts, it looks like this:
@example
@group
user::rw-
group::r--
group:gnu:rwx
mask::rwx
other::r--
@end group
@end example
@cindex security descriptor, file
@cindex SDDL, MS-Windows
On MS-Windows, the return value is a textual description of the file's
@dfn{security descriptor} in @acronym{SDDL}, the @dfn{Security
Descriptor Definition Language}.
This function returns the ACL entries of the file @var{filename}. The
return value is a platform-dependent string containing the textual
representation of the ACL entries. Don't use it for anything except
passing it to the @code{set-file-acl} function (@pxref{Changing Files,
set-file-acl}).
If the file does not exist or is inaccessible, or if Emacs was unable to
determine the ACL entries, then the return value is @code{nil}. The
@ -1726,8 +1712,8 @@ SELinux support.
This function sets the ACL entries of the file @var{filename} to
@var{acl-string}. @xref{File Attributes}, for a brief description of
ACLs. The @var{acl-string} argument should be a string containing the
textual representation of the desired ACL entries in the format
appropriate for the ACL interface being used.
textual representation of the desired ACL entries as returned by
@code{file-acl} (@pxref{File Attributes, file-acl}).
@end defun
@node File Names