Various fixes.

* README: Fix typo.
* doc/usr-acl.texi: New file.
* doc/Makefile.am (pies_TEXINFOS): Remove pies.texi,
add usr-acl.texi
(check-config, check-sub-config): Handle @deffnx
* doc/pies.texi: Update.
* src/Makefile.am (AM_CPPFLAGS): Remove superfluous defs,
use ../gnu/configmake.h instead
* src/acl.c (_acl_common_section_parser): Handle tag, depending
on the value of `flag' parameter.
Avoid coredumping on NULL pacl.
(acl_section_parser, defacl_section_parser): Update calls to
_acl_common_section_parser.
* src/pies.c (STATEDIR): Replace with LOCALSTATEDIR.
(GRECS_VALUE_IS_EMPTY): New define (possibly belongs to
grecs more than to pies).
(assert_grecs_value_type)
(return_code_section_parser): Use GRECS_VALUE_IS_EMPTY to check
for empty value.
(_get_array_arg): Bugfix.
(component_keywords, pies_keywords): Add missing docstrings.
* src/progman.c (TYPE_RETR): Rename to TYPE_REDIRECTOR.
All uses updated.

1 files changed, 48 insertions, 0 deletions

diff --git a/doc/usr-acl.texi b/doc/usr-acl.texi
new file mode 100644
index 0000000..1fd69f5
--- /dev/null
+++ b/doc/usr-acl.texi
@@ -0,0 +1,48 @@
+@c This is part of the Pies manual.
+@c Copyright (C) 2009 Sergey Poznyakoff
+@c This file is distributed under GFDL 1.1 or any later version
+@c published by the Free Software Foundation.
+
+  This appendix describes the @samp{user-group} extension for
+@command{Pies} @acronym{ACL}s.  This extension is reserved for
+the future use.
+  
+The @var{user-group} @acronym{ACL} statement specifies which
+users match this entry.  Allowed values are the following:
+
+@table @code
+@kwindex all
+@item all
+All users.
+
+@kwindex authenticated
+@item authenticated
+Only authenticated users.
+
+@kwindex group
+@item group @var{group-list}
+Authenticated users which are members of at least one of groups listed in
+@var{group-list}.
+@end table
+
+For example, the following statement defines an @acronym{ACL}
+which allows access for any user connected via local @acronym{UNIX}
+socket @file{/tmp/dicod.sock} or coming from a local network
+@samp{192.168.10.0/24}.  Any authenticated users are allowed, provided
+that they are allowed by another @acronym{ACL} @samp{my-nets} (which
+should have been defined before this definition).  Users coming from
+the network @samp{10.10.0.0/24} are allowed if they authenticate
+themselves and are members of groups @samp{pies} or @samp{users}.
+Access is denied for anybody else:
+
+@smallexample
+@group
+acl @{
+    allow all from ("/tmp/pies.sock", "192.168.10.0/24");
+    allow authenticated acl "my-nets";
+    allow group ("pies", "users") from "10.10.0.0/24";
+    deny all;
+@}
+@end group
+@end smallexample
+