TECHNICAL INFORMATION DOCUMENT

TITLE:  PTF260 - libc patch
DATE:  12OCT95
README FOR:  PTF260
PRODUCT and VERSION:

UnixWare 1.1


Installation Instructions:  

DATATYPE: datastream

1.  Download the ptf260.Z and ptf260.txt files to the /tmp directroy  
    on your machine.

2.  Read the release notes contained in this file and follow the 
    instuctions to add the package to your system.

3.  Now become root, uncompress the file and add the package to your 
    system using the following commands:

        $ su
        # uncompress /tmp/ptf260.Z
        # pkgadd -d /tmp/ptf260

ENGINEERING RELEASE NOTES
-------------------------

Title
-----

PTF260 - libc patch

Product And Version
--------------------

UnixWare 1.1.3.

Abstract
--------

This patch installs the following updated libraries:

        /usr/lib/libc.so.1
        /usr/lib/ld.so.1 (link to /usr/lib/libc.so.1)
        /usr/lib/libc.so.1.1

        /usr/ccs/lib/libc.a
        /usr/ccs/lib/libp/libc.a

        /usr/ccs/lib/libc.so
        /usr/ccs/lib/libp/libc.so (link to /usr/ccs/lib/libc.so)

        /usr/ccs/lib/minabi/libc.so
        /usr/ccs/lib/minabi/libp/libc.so (link to /usr/ccs/lib/minabi/libc.so)

Symptom
--------
In case of running out of memory, realloc() causes segmentation fault.


SOLUTION SPECIFICS
------------------

General Description.
-------------------

Instead of core dump, when running out of memory, the realloc() will
return a NULL pointer.

New Features.
------------

None

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

This PTF should be installed on a UnixWare 1.1.3 system which also
has the Optimizing C Compilation System (ccs) installed.

Testing of the modified software contained in this package has been
conducted only to the extent necessary to confirm that it resolves the
problem(s) stated above ("Symptom").  Such testing consists of
recreating the problem conditions and verifying that the problem no 
longer occurs.  No other testing of this software has been done.

Hardware Notes and Recommendations.
----------------------------------

This PTF is targeted for the i386, i486 and Pentium CPU's.