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|
#!/bin/sh
#
# Recipes for making badti-* family of archives.
#
# Every one is based on a version of ok-foo, with binary editing using
# bvi (or similar) and cut-n-paste with dd.
#
# This is the good temporal index
#
# Timestamp Log Vol end(meta) end(log) offset
# 0 <- label record
# 04:34:32.257 0 132 132 132
# 04:34:33.248 0 350 284 152
# 04:34:40.258 0 851 1768 172
# 191 <- EOF
tmp=/var/tmp/$$
trap "rm -f $tmp.*; exit 0" 0 1 2 3 15
# Set up for a new badti-X archive
#
X=`ls badti-*.index 2>/dev/null | tail -1 | sed -e 's/badti-//' -e 's/\.index//'`
if [ -z "$X" ]
then
X=1
else
X=`expr $X + 1`
fi
ln ok-foo.meta badti-$X.meta
ln ok-foo.0 badti-$X.0
case $X
in
1) # index broken in the middle of an entry
dd if=ok-foo.index of=badti-$X.index bs=1 count=162
;;
2) # entry[2] volume is negative
# entry[2] tv_usec in timestamp is >99999
# entry[3] tv_sec in timestamp is negative
# entry[3] tv_usec in timestamp is negative
cp ok-foo.index badti-$X.index
echo '140s\\....\\FFFFFFFF\\' >$tmp.ex
echo '136s\\....\\000F4240\\' >>$tmp.ex
echo '172s\\....\\FFFFFFFE\\' >>$tmp.ex
echo '176s\\....\\FFFFFFFC\\' >>$tmp.ex
;;
3) # entry[1] volume -> non existant file, and then volume goes backwards
# entry[3] meta and log offsets past end of file
cp ok-foo.index badti-$X.index
echo '132s\\....\\00000002\\' >$tmp.ex
echo '184s\\....\\00000354\\' >>$tmp.ex
echo '188s\\....\\000007B9\\' >>$tmp.ex
;;
4) # tv_usec in timestamp is negative
cp ok-foo.index badti-$X.index
;;
5) # Short label record (42 bytes, not 132)
dd if=badti-0.0 of=badti-$X.0 bs=1 count=42
;;
6) # Label header len 64 not 132 as expected
cp ok-foo.0 badti-$X.0
echo '3s\\.\\40\\' >$tmp.ex
;;
7) # Label trailer len 64 not 132 as expected
cp ok-foo.0 badti-$X.0
echo '131s\\.\\40\\' >$tmp.ex
;;
8) # Label bad PM_LOG_VER
cp ok-foo.0 badti-$X.0
echo '7s\\.\\FF\\' >$tmp.ex
;;
9) # Truncated metadata file
cp ok-foo.0 badti-$X.0
cp ok-foo.index badti-$X.index
rm -f badti-$X.meta
dd if=ok-foo.meta of=badti-$X.meta bs=1 count=840
esac
if [ -f $tmp.ex ]
then
echo 'w' >>$tmp.ex
echo 'q' >>$tmp.ex
if which bvi >/dev/null 2>&1
then
bvi -f $tmp.ex badti-$X.index
else
echo "bvi not installed"
echo "Need to apply the equivalent of this binary editing to badti-$X.0"
cat $tmp.ex
fi
fi
echo "badti-$X created."
exit
|
