hosts-to-vm.sh

#!/bin/sh
# hosts-to-vm.sh
# Drew Reece - September 2011
# 
# Made for use alongside  the excellent ievms - https://github.com/xdissent/ievms
# 
# Will export the local hosts (from /etc/hosts)
# to a batch file & add that batch file to a Windows VM
# The batch script will be executed to import the hosts onto the VM
# 
# REQUIREMENTS :
# VirtualBox & VirtualBox Guest Additions installed (v4.0 or greater) on the guest
# Local hosts defined in /etc/hosts using 127.0.0.1 address.
#
# USAGE :
# Have the VM running before using the script.
# Change the script if you want to avoid overwriting the Windows hosts file.
# The batch file seems convoluted, until you only want to append the new hosts.
# Call the script a follows on the main host.
# hosts-to-vm.sh VM-NAME "VM - Name"
# The console should flash up & dissapear on the VM, the batch file will remain in C:\
#
# The new hosts use the local machines IP address, since 127.0.0.1 will resolve to the VM, not the host OS.
# 
# OVERVIEW :
# 1 Parse local (127.0.0.1 ONLY) hosts to a list
# 2 Create a .bat file to copy to the Windows VM disk
# 3 Loop over hosts, adding commands to batchfile. 
# 4 Copy batchfile to C:\ of Administrator in the VM
# 5 Execute the batch


# The generated batch file
BATCHFILE="/tmp/hosts.bat"
HOSTS="/etc/hosts"


SCRIPT=`basename "$0"`
IP=`ifconfig | grep "inet " | grep -v 127.0.0.1 | cut -d\  -f2`

# Reqires VM to be running, pass it as arg1
if [[ -z $1 ]]; then
  echo  "Specify at least one VM to use, e.g. 
    $SCRIPT VM-NAME
    $SCRIPT vm1 [vm2 ... vm3]"
  exit 0 #statements
fi


# Get local hostnames on the host machine
function get_hosts() {
  HOSTLIST=`awk '/localhost/ || /broadcasthost/ || /^#/ {next}; /127.0.0.1/  {print $2}' $HOSTS`
  # Setup our batch file 
  touch $BATCHFILE
  # Will OVERWRITE hosts file on VM unless you remove the echo. >NUL 2>%hostspath%
  cat > $BATCHFILE <<"BATCHHEADER"
@echo off
set hostspath=%windir%\System32\drivers\etc\hosts
echo. >NUL 2>%hostspath%
BATCHHEADER

  # for each host add a line to create it in our batchfile...
  #echo local-IP-addr host.name >> %hostspath%
for host in $HOSTLIST
  do
    echo "echo $IP $host >> %hostspath%" >> $BATCHFILE
  done
  # Add the script closure to the batch file
  cat >> $BATCHFILE << 'CLOSURE'

exit
CLOSURE
}



get_hosts

# Quote to allow for spaces in arguments
for VM in "$@"
  do
  STATE=`VBoxManage showvminfo "$VM" | awk '/State/ {print $2}'`
  if [[ $STATE != 'running' ]]; then
    echo "The Virtual machine $VM is not running ... ignoring it"
  else
    # Import the batch to the VM. (using windows back slashes fails)
    VBoxManage guestcontrol copyto $VM $BATCHFILE C:/hosts.bat --username Administrator --password Password1 --verbose 
    # and Run it...
    VBoxManage guestcontrol exec $VM C:/hosts.bat --username Administrator --password Password1 --verbose 
  fi
done  


# Cleanup local copy
rm $BATCHFILE
exit 0

This would fit nicely to iectrl