#!/bin/sh
#------------------------------------------------------------------------------
# /var/install/bin/shfs-removehost - remove hoste from shfs 
#
# Copyright (c) 2004 Jens Vehlhaber <jvehlhaber(at)buchenwald(dot)de>
#
# Creation:     23.10.2004 jv
# Last Update:  $Id$
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#------------------------------------------------------------------------------

# include eislib
# /var/install/include/eislib

# Set defaults
findHost=""
host_name=""
mntpoint=""

### ---------------------------------------------------------------------------
### make a copy from config file
### ---------------------------------------------------------------------------
copy_config_file() 
{
    r_val1=$1
    r_val2=$2
    cat /etc/config.d/shfs | grep -v "$r_val1" | grep -v "$r_val2" > /tmp/shfs.tmp
}


### ---------------------------------------------------------------------------
### remove host from config file
### ---------------------------------------------------------------------------
remove_host_from_config_file() 
{
    idx=1
    nfd=0
    . /etc/config.d/shfs
    
    # get the idx number 
    if [ $SHFS_MNT_N -gt 0 ] 
    then 
        while [ $idx -le $SHFS_MNT_N ]
        do
            eval r_host='$SHFS_MNT_'$idx'_REMOTE_HOST'
            if [ "$r_host" = "$host_name"  ]
            then
                copy_config_file "^SHFS_MNT_N=" "^SHFS_MNT_${idx}"
                nfd=$idx
                eval mntpoint='$SHFS_MNT_'$idx'_LOCAL'
                eval r_port='$SHFS_MNT_'$idx'_REMOTE_PORT' 
                # check if connect               
                /usr/local/shfs/pscan "$host_name" -b $r_port -e $r_port -c 2 1>/dev/null
                if [ $? -gt 0 ]
                then                
                    shfsumount $mntpoint
                else
                    colecho "Error with umount host" br x br
                fi     
            fi
            # replace the old numbers
            if [ $nfd -gt 0 ]
            then
                nr_old=`expr $idx + 1`
                cat /tmp/shfs.tmp | sed "s/SHFS_MNT_${nr_old}/SHFS_MNT_${idx}/g" > /tmp/shfs1.tmp
                rm -f /tmp/shfs.tmp
                mv /tmp/shfs1.tmp /tmp/shfs.tmp
            fi
            idx=`expr $idx + 1`
        done
    
        idx=`expr $idx - 2`
        echo "SHFS_MNT_N='$idx'" >> /tmp/shfs.tmp
    fi
   
    # make new config file
    /var/install/config.d/shfs-update.sh /tmp/shfs.tmp
    # make new fstab
    /var/install/config.d/shfs.sh fstab
    # remove ssh - key
    cat /root/.ssh/known_hosts | grep -v "^$host_name" > /tmp/known_hosts.tmp
    rm -f /root/.ssh/known_hosts
    mv /tmp/known_hosts.tmp /root/.ssh/known_hosts
}


### ---------------------------------------------------------------------------
### get hostname
### ---------------------------------------------------------------------------
get_hostname()
{
    clrhome
    colecho "Remove host from SSH filesystem" gn
    echo ""
    echo ""
    echo -n "Input Hostname or IP: "
    read host_name
    echo ""
    echo ""
}

### ---------------------------------------------------------------------------
### check host 
### ---------------------------------------------------------------------------
check_host()
{
    findHost=`grep "REMOTE_HOST='$host_name'" /etc/config.d/shfs`
}

### ---------------------------------------------------------------------------
### main
### ---------------------------------------------------------------------------
get_hostname

while [ 1 ] 
do
    check_host
    if [ -z "$findHost" ]
    then
        colecho "             Host not found" br x br
        echo
        echo
        echo
	echo
	echo
	echo "             1: Change Hostname"
        echo
        echo
        echo -e "Command (1-2, ENTER=Return) \c"
        read input_select
        case $input_select
	       in
      	    1) get_hostname ;;
      	    *) break;;
        esac
    else
        remove_host_from_config_file
        if [ -d $mntpoint ]
        then
            rmdir $mntpoint
        fi
	break		     
    fi
done

/var/install/bin/anykey