TECHNICAL INFORMATION DOCUMENT

TITLE:              PTF150 - Who command patch
DOCUMENT ID:        TID300026
DOCUMENT REVISION:  B
DATE:               25JAN95
ALERT STATUS:       Yellow
INFORMATION TYPE:   Symptom Solution
README FOR:         PTF150

PRODUCT and VERSION:
UnixWare 1.1

ABSTRACT:

The ptf150 file contains the patch to the "who" command corrects the
"state" and "idle time" information for terminal lines with device 
names longer than 12 characters.  The "state" field will now correctly 
reflect whether the terminal is writable by others and the "idle" 
column will contain the hours and minutes since activity was last 
observed on the line. This patch may be installed on any UnixWare 1.1 
or UnixWare 1.1.1 system.


SYMPTOM

Before installing this patch, the "state" information displayed by 
"who -T" for lines with device names longer than 12 characters 
will usually be "?", indicating a bad line, and "idle time" either 
will not be displayed at all or will be incorrect.

SOLUTION

Apply the ptf150 file.


Installation Instructions:

DATATYPE: datastream

1.  Download the ptf150.Z and ptf150.txt files to the /tmp directory  
    on your machine.

2.  Read the release notes contained in this file.            

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

     $ su
     # uncompress /tmp/ptf150.Z
     # pkgadd -d /tmp/ptf150 ptf150

Solution Specifics

1. General Description

This patch to the "who" command corrects the "state" and "idle time"
information for terminal lines with device names longer than 12 characters. 
The "state" field will now correctly reflect whether the terminal is 
writable by others and the "idle" column will contain the hours and 
minutes since activity was last observed on the line.

2. New Features

None

3. Software Notes and Recommendations

Device names longer than 12 characters are used by the device drivers 
for some multiple-port serial communications cards.  Since device 
names stored in the ut_line field (for entries with ut_type = USER_PROCESS) 
are derived by deleting the initial "/dev/" characters from the full 
device name and the length of these entries is limited to a maximum 
of 11 characters (see /usr/include/utmp.h), the maximum length of a 
device name is 16 characters.
     
This patch may be installed on any UnixWare 1.1 or UnixWare 1.1.1 system.

NOTE: This patch modifies same files as update 1.1.2

4. Hardware Notes and Recommendations

None 

5. Installation Instructions

Depending on the format:

If this PTF was delivered on a diskette, then (as "root")

     # pkgadd -d diskette1

should install this patch.

Otherwise, if you have a file such as "ptf150" which is in a "stream" format,
then (as "root")

     # pkgadd -d <pwd>/ptf150 

will work.

6. Troubleshooting
     
Before installing this patch, the "state" information displayed by 
"who -T" for lines with device names longer than 12 characters will 
usually be "?", indicating a bad line, and "idle time" either will 
not be displayed at all or will be incorrect.

After installing this patch, this information will now be displayed correctly
(see the "who" manual page for details).