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#!/bin/bash
. lib.sh
#
# *** Description ***
#
# generate primary header with json area concluded with illegal
# byte beyond terminating '}' character.
#
# secondary header is corrupted on purpose as well
#
# $1 full target dir
# $2 full source luks2 image
function generate()
{
read -r json_str < $TMPDIR/json0
json_str="$json_str"X # add illegal 'X' beyond json format
test ${#json_str} -lt $((LUKS2_JSON_SIZE*512)) || exit 2
printf '%s' $json_str | _dd of=$TMPDIR/json0 bs=1 conv=notrunc
lib_mangle_json_hdr0_kill_hdr1
}
function check()
{
lib_hdr1_killed || exit 2
lib_hdr0_checksum || exit 2
read_luks2_json0 $TGT_IMG $TMPDIR/json_res0
read -r json_str_res0 < $TMPDIR/json_res0
local len=${#json_str_res0}
len=$((len-1))
test ${json_str_res0:len:1} = "X" || exit 2
}
lib_prepare $@
generate
check
lib_cleanup
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