#!/bin/sh
# Ensure that dd conv=unblock,sync works.

if test "$VERBOSE" = yes; then
  set -x
  dd --version
fi

# . $srcdir/../envvar-check

pwd=`pwd`
t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
trap 'status=$?; cd $pwd; chmod -R u+rwx $t0; rm -rf $t0 && exit $status' 0
trap '(exit $?); exit $?' 1 2 13 15

framework_failure=0
mkdir -p $tmp || framework_failure=1
cd $tmp || framework_failure=1
printf 000100020003xx > in || framework_failure=1

if test $framework_failure = 1; then
  echo "$0: failure in testing framework" 1>&2
  (exit 1); exit 1
fi

fail=0

dd cbs=4 ibs=4 conv=unblock,sync < in 2>/dev/null > out || fail=1
cat <<\EOF > exp || fail=1
0001
0002
0003
xx
EOF

cmp out exp || fail=1
test $fail = 1 && diff out exp 2> /dev/null

(exit $fail); exit $fail