#!/bin/sh

# wander through an Libreswan linux directory, creating a patch file (to stdout)
# that will apply the code to a kernel source directory.
#
# $Id: kernelpatch,v 1.14 2005/09/26 02:37:53 mcr Exp $
#

KERN=$1
shift

patch20=false
patch22=false
patch24=false
patch26=false

. packaging/utils/kernelpatching.sh

case $KERN in
    2.4) patchname=os2_4; altname=fs2_4; patch24=true ;;
    2.6) patchname=os2_6; altname=fs2_6; patch26=true ;;
    *) echo "Invalid kernel patch target: $KERN"; exit 1;;
esac

# make sure that sort gets the right locale.
LANG=C export LANG
LC_ALL=C export LC_ALL

find linux -type f -print | grep -v CVS | egrep -v 'linux/Makefile' | sort | while read file 
do 
  base=`basename $file`
  pname=`echo $file | sed -e 's,\.fs._.$,,' -e 's,\.os._.$,,'`

  case $base in 
    TAGS) ;;
    tags) ;;
    .cvsignore) ;;
    .*.o.flags) ;;
    .\#*);;
    *.o) ;;
    *~) ;;
    version.in.c) doversion $file ;;
    tagsfile.mak) ;;
    *.${patchname}.patch) cat $file;;
    *.${altname}.patch) cat $file;;
    *.patch) ;;
    *.fs2_4) fakeallpatch $patch24 $file $pname ;;
    *.fs2_6) fakeallpatch $patch26 $file $pname ;;
    *.os2_4) fakeallpatch $patch24 $file $pname ;;
    *.os2_6) fakeallpatch $patch26 $file $pname ;;
    *) fakeallpatch true $file $file ;;
  esac
done

#
# finally, we have to produce a diff for linux/net/linux/Makefile.ver, 
# a file which is generated at runtime, so there is nothing in CVS.
#
echo '--- /dev/null   Fri May 10 13:59:54 2002'
echo '+++ linux/net/ipsec/Makefile.ver  Wed Dec 31 19:00:00 1969'
echo '@@ -0,0 +1 @@'
echo -n '+'
(cd ${LIBRESWANSRCDIR} && make env ) | grep IPSECVERSION

exit 0