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#! /bin/sh
# Script to apply kernel patches.
# usage: patch-kernel [ sourcedir [ patchdir ] ]
# The source directory defaults to /usr/src/linux, and the patch
# directory defaults to the current directory.
#
# It determines the current kernel version from the top-level Makefile.
# It then looks for patches for the next sublevel in the patch directory.
# This is applied using "patch -p1 -s" from within the kernel directory.
# A check is then made for "*.rej" files to see if the patch was
# successful. If it is, then all of the "*.orig" files are removed.
#
# Nick Holloway <Nick.Holloway@alfie.demon.co.uk>, 2nd January 1995.
# Set directories from arguments, or use defaults.
sourcedir=${1-/usr/src/linux}
patchdir=${2-.}
# set current VERSION, PATCHLEVEL, SUBLEVEL
eval `sed -n 's/^\([A-Z]*\) = \([0-9]*\)$/\1=\2/p' $sourcedir/Makefile`
if [ -z "$VERSION" -o -z "$PATCHLEVEL" -o -z "$SUBLEVEL" ]
then
echo "unable to determine current kernel version" >&2
exit 1
fi
echo "Current kernel version is $VERSION.$PATCHLEVEL.$SUBLEVEL"
while :
do
SUBLEVEL=`expr $SUBLEVEL + 1`
patch=patch-$VERSION.$PATCHLEVEL.$SUBLEVEL.gz
if [ ! -r $patchdir/$patch ]
then
break
fi
echo -n "Applying $patch... "
if gunzip -dc $patchdir/$patch | patch -p1 -s -N -E -d $sourcedir
then
echo "done."
else
echo "failed. Clean up yourself."
break
fi
if [ "`find $sourcedir/ '(' -name '*.rej' -o -name '.*.rej' ')' -print`" ]
then
echo "Aborting. Reject files found."
break
fi
# Remove backup files
find $sourcedir/ '(' -name '*.orig' -o -name '.*.orig' ')' -exec rm -f {} \;
done
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