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#! /bin/sh
#
# (C) 1998 Manoj Srivastava & Eric Delaunay.
set -e
PATCHNAME=2.2.18-openwall
PATCHFILE=linux-2.2.18-ow1.diff
PATCHDIR=/usr/src/kernel-patches/all
if ! test -d kernel -a -d Documentation ; then
echo "Not in kernel top level directory. Exiting" >&2
exit 1
fi
if ! test -f debian/APPLIED_all_$PATCHNAME ; then
exit 0 # no need to remove a non existent patch
fi
VERSION=$(grep ^VERSION Makefile 2>/dev/null | \
sed -e 's/[^0-9]*\([0-9]*\)/\1/')
PATCHLEVEL=$(grep ^PATCHLEVEL Makefile 2>/dev/null | \
sed -e 's/[^0-9]*\([0-9]*\)/\1/')
SUBLEVEL=$(grep ^SUBLEVEL Makefile 2>/dev/null | \
sed -e 's/[^0-9]*\([0-9]*\)/\1/')
PATCH_VERSION=$(patch -v | head -1 | sed -e 's/[^0-9\.]//g')
PATCH_OPTIONS="-l -s -p1"
# If a prepatch exists unapply it:
if test -f $PATCHDIR/pre-openwall-patch-$VERSION.$PATCHLEVEL.$SUBLEVEL.gz ; then
zcat $PATCHDIR/pre-openwall-patch-$VERSION.$PATCHLEVEL.$SUBLEVEL.gz | patch -R $PATCH_OPTIONS
fi
cat $PATCHDIR/$PATCHFILE | patch -R $PATCH_OPTIONS
echo "Removing empty files after unpatching" >&2
find . -type f -size 0 -exec rm {} \; -print
rm -f debian/APPLIED_all_$PATCHNAME
#[ -d debian ] && rmdir -p debian
exit 0
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