#! /bin/sh
# Run a test given as "$@" and then munge its exit code to 77 if it
# failed because of an "exec format error."
#
# Written by Zack Weinberg <zackw at panix.com> in 2017.
# To the extent possible under law, Zack Weinberg has waived all
# copyright and related or neighboring rights to this work.
#
# See https://creativecommons.org/publicdomain/zero/1.0/ for further
# details.

set -u

tmplog=`mktemp -p "${TMPDIR:-/tmp}" tmplog.XXXXXXXXXX` || exit 99
trap "rm -f '$tmplog'" 0

"$@" > "$tmplog" 2>&1
status="$?"
cat "$tmplog" || exit 99

case "$status" in
  0|77|99) exit "$status";;
esac

if grep -q '[eE]xec format error' "$tmplog"
then exit 77
else exit "$status"
fi