Bug#650304: libvte9: Does not perform DECAWM when processing DECSTR

[Brian Julin]

Package: libvte9
Version: 1:0.28.2-3
Severity: normal


Terminals based on libvte do not reset the auto-wrap mode (DECAWM)
when they are sent a DECSTR (soft reset) sequence.

This causes strange line wrapping behavior after interfacing with
a new (and broken) curses-like stack that is starting to appear on commercial 
networking equipment from multiple vendors, most critically HP Procurve 
switches, which sever connections before correctly restoring terminal settings.

To test this problem, paste the following under a libvte-based terminal
emulator and under vanilla xterm:

echo -e '\e[?7l'
# now type past the end of the command line and note that text wraps to the same line.
# This is to be expected on all terms after executing the above command.
echo -e '\e[!p'
# This sent a DECSTR sequence which should restore normal autowrapping behavior so wrapping text should scroll the screen
# However, it only works on xterm, not libvte-based terminals
echo -e '\e[?7h'
# This fixed the autowrap by explicitly sending a DECAWM sequence.  Both terminals should be scrolling wrapped text now.

Note that termcap, and thus the "reset" command, rely on DECSTR to execute
DECAWM as described in the file debian/xterm.ti in the ncurses-5.9 dsc, so there
is no commandline utility to undo the effect other than sending the codes by hand.
Also note that under many terminals the menu-based "reset" functions do not 
clear this mode either.

This bug also effects the libvte-2.90 series of packages.  I have not tested with libvte0 series.

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 3.0.0-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages libvte9 depends on:
ii  libatk1.0-0                   2.2.0-2    ATK accessibility toolkit
ii  libc6                         2.13-21    Embedded GNU C Library: Shared lib
ii  libcairo2                     1.10.2-6.1 The Cairo 2D vector graphics libra
ii  libfontconfig1                2.8.0-3    generic font configuration library
ii  libfreetype6                  2.4.8-1    FreeType 2 font engine, shared lib
ii  libgdk-pixbuf2.0-0            2.24.0-1   GDK Pixbuf library
ii  libglib2.0-0                  2.30.2-4   GLib library of C routines
ii  libgtk2.0-0                   2.24.8-2   GTK+ graphical user interface libr
ii  libncurses5                   5.9-4      shared libraries for terminal hand
ii  libpango1.0-0                 1.29.4-2   Layout and rendering of internatio
ii  libtinfo5                     5.9-4      shared low-level terminfo library 
ii  libvte-common                 1:0.28.2-3 Terminal emulator widget for GTK+ 
ii  libx11-6                      2:1.4.4-4  X11 client-side library

libvte9 recommends no packages.

libvte9 suggests no packages.

-- no debconf information