#!/bin/sh
#
# Copyright (c) 2006 by Karl J. Runge <runge@karlrunge.com>
#
# tightvncviewer:
#
#    A wrapper that calls the enhanced TightVNC viewer. 
#
# The enhanced TightVNC viewer features are:
#
#	- SSL support for connections using the co-bundled stunnel program.
#	- rfbNewFBSize VNC support (screen resizing)
#	- cursor alphablending with x11vnc at 32bpp
#	- xgrabserver support for fullscreen mode (for old window mgrs)
#
#
# Your platform (e.g. Linux.i686) is autodetected and enhanced
# vncviewer and stunnel binaries for it are used (see the ./bin directory).
#
# See the build.unix script if your platform is not in this package if
# you want to build one.
#
# See the build.unix script if your platform is not in this package if you want to build one.
# You can also set the env. var. UNAME=os.arch to any "os.arch" you want
# to override the autodetetion.
#
# Usage:
#
#     tightvncviewer [tightvncviewer-args] hostname:N 
# or
#     tightvncviewer -ssl hostname:N [tightvncviewer-args]
#
# "hostname:N" is the host and VNC display to connect to, e.g. snoopy:0
#
# If the first argument is "-ssl" then ssl_tightvncviewer is called 
# instead.  See that script for details.
#
# See the TightVNC viewer documentation for on its cmdline arguments.
#
# For convenience, here is the current (7/2006) TightVNC viewer -help output:
#
#       TightVNC viewer version 1.3dev5
#       
#       Usage: vncviewer [<OPTIONS>] [<HOST>][:<DISPLAY#>]
#              vncviewer [<OPTIONS>] [<HOST>][::<PORT#>]
#              vncviewer [<OPTIONS>] -listen [<DISPLAY#>]
#              vncviewer -help
#       
#       <OPTIONS> are standard Xt options, or:
#               -via <GATEWAY>
#               -shared (set by default)
#               -noshared
#               -viewonly
#               -fullscreen
#               -noraiseonbeep
#               -passwd <PASSWD-FILENAME> (standard VNC authentication)
#               -user <USERNAME> (Unix login authentication)
#               -encodings <ENCODING-LIST> (e.g. "tight copyrect")
#               -bgr233
#               -owncmap
#               -truecolour
#               -depth <DEPTH>
#               -compresslevel <COMPRESS-VALUE> (0..9: 0-fast, 9-best)
#               -quality <JPEG-QUALITY-VALUE> (0..9: 0-low, 9-high)
#               -nojpeg
#               -nocursorshape
#               -x11cursor
#               -autopass
#       
#       Option names may be abbreviated, e.g. -bgr instead of -bgr233.
#       See the manual page for more information.
#  

if [ "X$1" = "X-h" -o "X$1" = "X-help" -o "X$1" = "X--help" ]; then
	head -69 "$0" | grep -v bin/sh
	exit
fi

# Include /usr/bin... to be sure to get regular utilities:
#
PATH=$PATH:/usr/bin:/bin
export PATH

# Set this for ssl_vncviewer to pick up:
#
VNCVIEWERCMD="vncviewer"
export VNCVIEWERCMD

# work out os.arch platform string and check for binaries:
#
name=$UNAME
if [ "X$name" = "X" ]; then
	name=`uname -sm | sed -e 's/ /./'`
fi

if [ -L "$0" ]; then
	d=`dirname "\`ls -l "$0" | sed -e 's/^.* -> //'\`"`
	if echo "$d" | grep '^/' > /dev/null; then
		dir="$d"
	else
		dir="`dirname "$0"`/$d"
	fi
else
	dir=`dirname "$0"`
fi
if [ ! -d "$dir/$name" ]; then
	echo "cannot find platform dir: $dir/$name for your OS:" 
	uname -sm
	echo "you can set the \$UNAME env. var. to override the setting."
	exit 1
fi

# Put our os.arch and other utils dirs at head of PATH to be sure to
# pick them up:
#
PATH="$dir:$dir/$name:$dir/util:$PATH"

if [ "X$1" = "X-ssl" ]; then
	shift	
	ssl_tightvncviewer "$@"
	exit $?
fi

STUNNEL_EXTRA_OPTS=${STUNNEL_EXTRA_OPTS:-"maxconn = 1"}
export STUNNEL_EXTRA_OPTS

# Force the use of tight encoding for localhost redir connection:
#
vncviewer -encodings 'copyrect tight zrle zlib hextile' "$@"