#!/bin/sh

if [ $# != 1 ]; then
  echo "Usage: ${0##*/} <src_dir>"
  echo "  where <src_dir> is the full path name to the 'src'"
  echo "  directory within the extracted e1000-7.3.xx package."
  echo "  The operation will replace the files in the local directory."
  echo "  It must be started from linux-2.4.XX/drivers/net/e1000/."
  exit 1
fi

echo "Checking current directory..."
if [ ! -s "Makefile" -o ! -s "e1000.h" ]; then
  echo "Error: ${0##*/} not started from a valid directory."
  echo "It must be started from linux-2.4.XX/drivers/net/e1000/."
  exit 2
fi

echo "Checking source directory..."
if [ ! -d "$1/." ]; then
  echo "Error: $1 is not a valid source directory."
  exit 2
fi

echo "Replacing files..."
for file in e1000.h e1000_ethtool.c e1000_hw.c e1000_hw.h \
	e1000_main.c e1000_osdep.h e1000_param.c kcompat.h \
	kcompat.c kcompat_ethtool.c
do
	[ -e "${file}" -a ! -e "${file}~" ] && mv "${file}" "${file}~"
	cp "$1/$file" "$file"
done

echo "Patching Makefile..."
[ -e "Makefile~" ] || cp Makefile Makefile~
sed -e 's/^obj-y.*param.o$/\0 kcompat.o/' Makefile > Makefile.new
[ $? == 0 ] && mv Makefile.new Makefile || rm -f Makefile.new

echo "Done. You can remove old files when needed : rm -f *~"