ტესტ

#!/bin/bash

cleanup() {
    ssh -S /dev/shm/real-vncviewer-over-ssh_ctl_path_$PORT -O exit root@$ADDRESS &>/dev/null
    rm /dev/shm/real-vncviewer-over-ssh_error_log_$PORT &>/dev/null
    kill $(jobs -pr) &>/dev/null
}

ARGS=${@:1:$((${#@} - 1))}

ADDRESS=${@:${#@}}

if [ -z "$ADDRESS" ]; then
    if [ -t 0 ]; then
    read -p "remote address: " -t 300 ADDRESS
    else
    LAST=$(tail -n1 $HOME/.real-vncviewer-over-ssh_history 2>/dev/null)
    HISTORY=$(tac $HOME/.real-vncviewer-over-ssh_history 2>/dev/null|tr '\n' ' '|sed 's/^[^ ]* //')
    case $(lsb_release -r -s 2>/dev/null) in
    12.04)
    ADDRESS=$(zenity --entry --window-icon=/usr/share/pixmaps/real-vncviewer.png --title="VNC Viewer Over SSH" --text="remote address:" --entry-text="$LAST")
    ;;
    *)
    ADDRESS=$(zenity --entry --window-icon=/usr/share/pixmaps/real-vncviewer.png --title="VNC Viewer Over SSH" --text="remote address:" --entry-text="$LAST" $HISTORY)
    ;;
    esac
    fi
fi

if [ -z "$ADDRESS" ]; then
    exit
fi

export HISTCONTROL=erasedups
export HISTSIZE=10

history -r $HOME/.real-vncviewer-over-ssh_history
history -s $ADDRESS
history -w $HOME/.real-vncviewer-over-ssh_history

PORT=$((RANDOM%20000+40000))

while true; do
    (echo >/dev/tcp/localhost/$PORT) &>/dev/null && PORT=$((RANDOM%20000+40000)) || break
done

trap "cleanup" SIGHUP SIGINT SIGTERM EXIT

if [ -t 0 ]; then
    ssh -o StrictHostKeyChecking=no -o ExitOnForwardFailure=yes -TNfL $PORT:127.0.0.1:5900 -M -S /dev/shm/real-vncviewer-over-ssh_ctl_path_$PORT root@$ADDRESS &
else
    while true; do echo; sleep 1; done | zenity --progress --auto-kill --pulsate --window-icon=/usr/share/pixmaps/real-vncviewer.png --title="VNC Viewer Over SSH" --text="creating ssh tunnell to root@$ADDRESS" &
    ZENITY_PROGRESS_PID=$!
    ssh -o StrictHostKeyChecking=no -o ExitOnForwardFailure=yes -TNfL $PORT:127.0.0.1:5900 -M -S /dev/shm/real-vncviewer-over-ssh_ctl_path_$PORT root@$ADDRESS &>/dev/shm/real-vncviewer-over-ssh_error_log_$PORT &
fi

SSH_PID=$!

wait $SSH_PID

SSH_EXIT_STATUS=$?

if [ -n "$ZENITY_PROGRESS_PID" ]; then
    kill $ZENITY_PROGRESS_PID
fi

if [ $SSH_EXIT_STATUS -ne 0 ]; then
    if ! [ -t 0 ] && [ -r /dev/shm/real-vncviewer-over-ssh_error_log_$PORT ]; then
    zenity --error --window-icon=/usr/share/pixmaps/real-vncviewer.png --title="VNC Viewer Over SSH" --text="<b>remote address: $ADDRESS</b>\n\n$(</dev/shm/real-vncviewer-over-ssh_error_log_$PORT)"
    fi

    exit $SSH_EXIT_STATUS
fi

real-vncviewer WarnUnencrypted=0 $ARGS 127.0.0.1:$PORT