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From:	Charles Wilson <cygwin AT cwilson DOT fastmail DOT fm>
Date:	Sun, 28 Mar 2010 20:06:51 -0400
Subject:	[ANNOUNCEMENT] Updated: {tcp_wrappers/libwrap0/libwrap-devel}-7.6-21
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tcp_wrappers provides host-based access restrictions on tcp services:
facilities for monitoring and filtering incoming requests for the SSHD,
SYSTAT, FINGER, FTP, TELNET, RLOGIN, RSH, EXEC, TFTP, TALK, and other
network services.

The package provides a tiny daemon wrapper program that can be installed
without any changes to existing software or to existing configuration
files.  The wrappers report the name of the client host and of the
requested service; the wrappers do not exchange information with the
client or server applications, and impose no overhead on the actual
conversation between the client and server applications.

This is a feature enhancement release: corrects (more) failures to
access from localhost to services on localhost, when the Windows
operating system supports IPv6 (Vista+, XPsp3+).

[[ compiled using gcc-4.3.4-3 ]]

CHANGES (since 7.6-20)
========================
o Updated hosts.allow to add IPv4-in-IPv6 localhost alias
  [::ffff:127.0.0.1]/128
o Rebuilt using gcc4, against non-beta version of cygwin-1.7.x.
o Fixed a few thinkos with respect to the logging level variables.
o Restructured cygport to use cygport-0.9.x features
o Added note in README concerning /etc/hosts
o Added a lot of documentation concerning multi-homed computers.
o Added intelligence to treat localhost and its various aliases
  with special care.

A reminder for package maintainers and developers:
        STRONGSYMS: the cygwin versions of cygwrap-0.dll AND libwrap.a
        (that is, both the DLL and static library) explicitly provide
            int deny_severity
            int allow_severity
        symbols.  This means that clients must NOT define their own
        versions of these symbols, as is the practice on *nix systems.
        Instead, clients should rely on the /declaration/ provided in
        tcpd.h:
            extern int deny_severity;
            extern int allow_severity;
        This may require code changes in clients that link against
        libwrap, but it was a necessary API change to enable DLL
        builds on cygwin. 

-- 
Charles Wilson
volunteer tcp_wrappers maintainer for cygwin

====================================================================

To update your installation, click on the "Install Cygwin now" link
on the http://cygwin.com/ web page.  This downloads setup.exe to
your system.  Then, run setup and answer all of the questions.

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