#!/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