#!/bin/sh

#

# Perform a round-trip test between big-endian and little-endian

# BIN/CUE to see if we can read both files correctly.

#

set -e

: ${CMP:="@CMP@"}

: ${WC:="@WC@"}

: ${abs_builddir:="@abs_builddir@"}

: ${abs_srcdir:="@abs_srcdir@"}

: ${abs_top_builddir:="@abs_top_builddir@"}

cd_paranoia="${abs_top_builddir}/src/cd-paranoia@EXEEXT@"

orig_le_cue_file="${abs_srcdir}/data/cdda.cue"

orig_le_bin_file="${abs_srcdir}/data/cdda.bin"

be_cue_file="${abs_builddir}/cdda-be.cue"

be_bin_file="${abs_builddir}/cdda-be.bin"

le_cue_file="${abs_builddir}/cdda-le.cue"

le_bin_file="${abs_builddir}/cdda-le.bin"

if test "${CMP}" = no; then

    echo "Don't see 'cmp' program. Test skipped."

    exit 77

elif test "${WC}" = no; then

    echo "Don't see 'wc' program. Test skipped."

    exit 77

fi

# Convert from little-endian to big-endian.

cat "${orig_le_cue_file}" > "${be_cue_file}"

${cd_paranoia} -d "${orig_le_cue_file}" -v -R -- "1-" "${be_bin_file}"

# The contents of these two .bin files should differ, but they should

# have the same length.

if test `${WC} -c < "${orig_le_bin_file}"` -ne `${WC} -c < "${be_bin_file}"`; then

    echo "** File sizes differ after byte swap"

    exit 3

elif ${CMP} -s "${orig_le_bin_file}" "${be_bin_file}"; then

    echo "** Identical raw file after byte swap"

    exit 3

fi

# Convert it back to little-endian.

cat "${be_cue_file}" > "${le_cue_file}"

${cd_paranoia} -d "${be_cue_file}" -v -r -- "1-" "${le_bin_file}"

# It should round-trip to the original file.

if ${CMP} "${le_bin_file}" "${orig_le_bin_file}"; then

    echo "** Identical raw file after round-trip"

    exit 0

else

    echo "** Raw files differ after round-trip"

    exit 3

fi