#!/usr/bin/env bash
# nbdkit
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# Test double-free bug in checkwrite filter on fast zero fixed in v1.46

source ./functions.sh
set -e
set -x
set -u

requires nbdsh --version
requires_filter checkwrite
requires_filter noextents
requires_run
requires_nbdsh_uri

output=test-checkwrite-fastzero.out
cleanup_fn rm -f $output

export output

define script <<\EOF
h.zero(1, 0)
try:
  h.zero(1, 0, nbd.CMD_FLAG_FAST_ZERO)
except nbd.Error as e:
  assert e.errno == "ENOTSUP"
h.zero(1, 0)
EOF
export script

nbdkit memory 1m --filter=checkwrite --filter=noextents \
       --run 'nbdsh --base-allocation -u "$uri" -c "$script"'
