- import of strongswan-2.7.0
- applied patch for charon
This commit is contained in:
Martin Willi
Executable
+188
@@ -0,0 +1,188 @@
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#! /bin/sh
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# smart patch applier
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# Copyright (C) 1999, 2001 Henry Spencer.
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 2 of the License, or (at your
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# option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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# for more details.
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#
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# patcher [-v] [-c] targetdir target [ key patchfile ] ...
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# In targetdir, patch target from patchfile unless it already contains
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# key and it appears to have been patched with the same patch. (If the
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# patch has changed, undo the old one and then put the new one in.) Save
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# original as target.preipsec, and patched copy as target.wipsec, with
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# patch md5sum stored as target.ipsecmd5. If the patch doesn't work,
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# put the original back and save the patch attempt as target.mangled.
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# If there are no key+patchfile pairs, undo any old patch and leave it
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# at that.
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# -v means verbose
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# -c means do "patching" by appending rather than by using patch(1)
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#
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# RCSID $Id: patcher,v 1.1 2004/03/15 20:35:27 as Exp $
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PATH=/bin:/usr/bin:/usr/local/bin:/sbin:/usr/sbin:/usr/local/sbin
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export PATH
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umask 022
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verbose=
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modifier=patch
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for dummy
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do
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case "$1" in
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-v) verbose=yes ;;
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-c) modifier=cat ;;
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--) shift ; break ;;
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-*) echo "$0: unknown option \`$1'" >&2 ; exit 2 ;;
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*) break ;;
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esac
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shift
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done
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if test $# -lt 2
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then
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echo "Usage: $0 [-v] [-c] targetdir target [ key patchfile ] ..." >&2
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exit 2
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fi
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need() {
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if test ! -f $1
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then
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echo "$0: cannot find file \`$1'" >&2
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exit 1
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fi
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}
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note() {
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if test "$verbose"
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then
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echo "* $1"
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fi
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}
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dir="$1"
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target="$2"
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shift ; shift
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it=$dir/$target
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need $it
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patches=
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if test ! -s $it.ipsecmd5
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then
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# no records of patching...
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while test $# -ge 2
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do
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key="$1"
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patchfile="$2"
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shift ; shift
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need $patchfile
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if egrep -q "$key" $it
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then
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# patched but no record of how
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note "$it no longer needs patch $patchfile"
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else
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patches="$patches $patchfile"
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fi
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done
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elif test ! -f $it.preipsec -o ! -f $it.wipsec
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then
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echo "$0: $it.preipsec or .wipsec is missing!" >&2
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exit 1
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else
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# determine whether patches have changed
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tmp=/tmp/patcher.$$
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>$tmp
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while test $# -ge 2
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do
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key="$1"
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patchfile="$2"
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shift ; shift
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need $patchfile
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md5sum $patchfile | awk '{print $1}' >>$tmp
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if egrep -q "$key" $it.preipsec
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then
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note "$it no longer needs patch $patchfile"
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else
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patches="$patches $patchfile"
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fi
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done
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if cmp -s $tmp $it.ipsecmd5
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then
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note "$it already fully patched"
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rm -f $tmp
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exit 0
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fi
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rm -f $tmp
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# must undo old patch(es)
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note "$it old patches must be undone, undoing them..."
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if ! cmp -s $it $it.wipsec
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then
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note "$it has changed, cannot undo old patches!"
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echo "$0: cannot unpatch $it, it has changed since patching" >&2
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exit 1
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fi
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rm $it
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mv $it.preipsec $it
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rm $it.wipsec $it.ipsecmd5
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fi
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# if no necessary patches, we're done
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if test " $patches" = " "
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then
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note "$it no longer needs patching"
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exit 0
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fi
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# try to figure out patch options
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if test " $modifier" = " patch"
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then
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if patch --help >/dev/null 2>/dev/null
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then
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# looks like a modern version
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popts='-p1 -b'
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else
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# looks like an old one
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popts='-p1'
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fi
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fi
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# do it
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>$it.ipsecmd5
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for patchfile in $patches
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do
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note "applying $patchfile to $it..."
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# make local copy - this defeats hard and soft links
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mv $it $it.preipsec || exit 0
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rm -f $it
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cp -p $it.preipsec $it
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case "$modifier" in
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patch) ( cd $dir ; patch $popts ) <$patchfile ;;
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cat) cat $patchfile >>$it ;;
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esac
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status=$?
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if test $status -ne 0
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then
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note "$it patch failed, restoring original"
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echo "$0: patch on $it failed!" >&2
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echo "$0: restoring original $it," >&2
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echo "$0: leaving patch attempt in $it.mangled" >&2
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mv $it $it.mangled
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mv $it.preipsec $it
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rm -f $it.ipsecmd5
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exit 1
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fi
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rm -f $it.orig # some patch versions leave debris
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md5sum $patchfile | awk '{print $1}' >>$it.ipsecmd5
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done
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cp -p $it $it.wipsec
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