Dear SCO Customer,

Support Level Supplement (SLS) ptf7084b, the UnixWare 7 libnsl Supplement,
addresses the following problems.

SLS ptf7084a contained this change:

1.  libnsl was modified to support gratuitous arp.  SLS PTF7010C is
    required to actually implement gratuitous arp.

SLS ptf7084b additionally contains this change:

2.  yp_match() has been modified to avoid getting stuck in an infinite 
    sleep loop when NIS is configured and gethostbyname() is called 
    with a long name (rejects keys longer than YPMAXRECORD).  


Contents
--------

        /usr/lib/libnsl_i.so


Software Notes and Recommendations
----------------------------------

SLS ptf7084b should only be installed on:

        UnixWare 7 Release 7.0.0 with UnixWare 7 Release Supplement


Installation Instructions
-------------------------

1. Download the ptf7084b.Z file to the /tmp directory on your machine.

2. As root, uncompress the file and add the package to your system
   using these commands:

        $ su
        Password: <type your root password>
        # uncompress /tmp/ptf7084b.Z
        # pkgadd -d /tmp/ptf7084b
        # rm /tmp/ptf7084b

3. Shut down and reboot the system after installing this package.

The release notes displayed prior to installation can be found in:

        /var/sadm/pkg/ptf7084/install/ptf7084.txt


Removal Instructions
--------------------

1. As root, remove the package using these commands:

        $ su
        Password: <type your root password>
        # pkgrm ptf7084

2. Reboot the system after removing this package.


If you have questions regarding this SLS, or the product on which 
it is installed, please contact your software supplier.