>Number:         32343
>Category:       bin
>Synopsis:       etcupdate uses the wrong field of `stty -a` for terminal width
>Confidential:   no
>Severity:       non-critical
>Priority:       high
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Dec 20 02:25:00 +0000 2005
>Originator:     Richard Grace
>Release:        3.0
>Organization:
>Environment:
NetBSD Cubit 3.0 NetBSD 3.0 (GENERIC) #1: Mon Dec 19 10:05:44 EST 2005  root@Cubit:/usr/obj/sys/arch/i386/compile/GENERIC i386

>Description:
Line 58 of /usr/sbin/etcupdate uses stty to determine the terminal width:

  SWIDTH=`stty -a | awk '/columns/{w=$6}END{if(w==0){w=80}print w}'`

This is incorrect, as the column with is in field 9 of the stty output,
not field 6.

This prevents etcupdate being able to show the differences when merging
two files which differ after a new installation.

>How-To-Repeat:
The output from this is:

  $ stty -a | awk '/columns/{w=$6}END{if(w==0){w=80}print w}'
  baud;

While it should be:

  $ stty -a | awk '/columns/{w=$9}END{if(w==0){w=80}print w}'
  90

The stty that is being used is:

  $ which stty
  /bin/stty


>Fix:
Here is a unified diff for /usr/sbin/etcupdate:

--- etcupdate.orig      2005-12-20 13:13:32.000000000 +1100
+++ etcupdate   2005-12-20 13:13:49.000000000 +1100
@@ -55,7 +55,7 @@
 TEMPROOT="${TEMPROOT:=/tmp/temproot}"
 SRCDIR="${SRCDIR:=/usr/src/etc}"
 PAGER="${PAGER:=/usr/bin/more}"
-SWIDTH=`stty -a | awk '/columns/{w=$6}END{if(w==0){w=80}print w}'`
+SWIDTH=`stty -a | awk '/columns/{w=$9}END{if(w==0){w=80}print w}'`
 WIDTH="${WIDTH:=${SWIDTH}}"
 VERBOSE=
 CONTINUE=