#!/bin/sh

# Easymount installer, easily mount removable hardware by mortal users on NetBSD
# CL 2005 Bastiaan Welmers, bastiaan at welmers.net

installfiles () {
   
   FILESDIR=`echo $0 | sed -e /install.sh/s///`files
   
   if [ ! -e /sbin/mount_general ]; then
      mv /sbin/mount /sbin/mount_general
      cp $FILESDIR/mount /sbin/mount
      chmod 555 /sbin/mount
   else
      echo "Warning: /sbin/mount_general seems to already exists, not overwriting"
   fi
   
   if [ ! -e /sbin/umount_root ]; then
      mv /sbin/umount /sbin/umount_root
      cp $FILESDIR/umount /sbin/umount
      chmod 555 /sbin/umount
   else
      echo "Warning: /sbin/umount_root seems to already exists, not overwriting"
   fi
   
   if [ ! -e /usr/bin/reject_root ]; then
      mv /usr/bin/eject /usr/bin/eject_root
      cp $FILESDIR/eject /usr/bin/eject
      chmod 555 /usr/bin/eject
   else
      echo "Warning: /usr/bin/eject_root seems to already exists, not overwriting"
   fi
   
   cp $FILESDIR/mount_auto /sbin
   chmod 555 /sbin/mount_auto
      
   if [ ! -d /usr/local/bin ]; then
      mkdir -p /usr/local/bin
   fi
   
   ln -s /sbin/mount /usr/local/bin/mount
   ln -s /sbin/umount /usr/local/bin/umount 
   
   cp $FILESDIR/sudoers.easymount /usr/pkg/etc

   cp $FILESDIR/fstab.easymount /etc

   cat << "EOF"
Files are installed.
Please complete /usr/pkg/etc/sudoers and /etc/fstab 
to enable mortal-user mounting.
Examples are in /usr/pkg/etc/sudoers.easymount and 
/etc/fstab.easymount
EOF
   exit
}

cat << "EOF"
NOTE: this will install easymount, a few scripts that 
replace /sbin/mount, /sbin/umount, and /usr/bin/eject 
making it possible to easily mount, unmount and eject 
removable media by mortal users, authorized by sudo.

Originaly binaries will be renamed to respectively 
/sbin/mount_general, /sbin/umount_root and 
/usr/bin/eject_root.

It also adds /sbin/mount_auto, making it possible to 
use the \"auto\" fs type in /etc/fstab, so the file 
system type of the media will be  auto-detected, and
set the right file user id in case of msdos file 
systems.

Additionaly files /etc/fstab.easymount and 
/usr/pkg/etc/sudoers.easymount will be created, 
containing examples for setting up fstab and sudoers 
files the right way. Also symlinks in /usr/local/bin 
will be created, pointing to /sbin/mount and 
/sbin/umount

Do you want to continue? (Yes)
EOF

read yesno

YESNO=`echo $yesno | tr a-z A-Z`

if [ $YESNO = YES ]; then
   installfiles
fi

echo "Aborting..."