#!/bin/bash

if [ -z "$1" -o "$1" = '--help' ]; then
	echo "USAGE: $0 <program> [args...]"
	exit 1
fi

if [ -d /usr/lib64 ]; then
  libdir_64=/usr/lib64
  if [ -d "$libdir_64/mumble" ]; then
    libdir_64="$libdir_64/mumble";
  fi
fi
if [ -d /usr/lib32 ]; then
  libdir_32=/usr/lib32
  if [ -d "$libdir_32/mumble" ]; then
    libdir_32="$libdir_32/mumble";
  fi
fi
if [ -z "$libdir_32" -o -z "$libdir_64" ]; then
  tlibdir=/usr/lib
  if [ -d "$tlibdir/mumble" ]; then
    tlibdir="$tlibdir/mumble"
  fi
  if [ -f "$tlibdir/libmumble.so.1" ]; then
    case $(file -L "$tlibdir/libmumble.so.1") in
      *64-bit*)	libdir_64=$tlibdir ;;
      *32-bit*) libdir_32=$tlibdir ;;
    esac
  fi
fi

MUMBLE_OVERLAY_PATH_32=$libdir_32
MUMBLE_OVERLAY_PATH_64=$libdir_64

if [ -f /etc/sysconfig/mumble ]; then
  . /etc/sysconfig/mumble
fi

binary="$1"
if [ "${binary/\/}" = "$binary" ]; then
  binary=$(which "$binary")
fi
if [ ! -x "$binary" ]; then
  echo "$1 not found" >&2
  exit 1
fi

is64=no
is32=no

case $(file -L "$binary") in
	*64-bit*)
		if [ ! -f "${MUMBLE_OVERLAY_PATH_64}/libmumble.so.1" ]; then
			echo "64-bit libmumble.so.1 not found in ${MUMBLE_OVERLAY_PATH_64}" >&2
			exit 1
		fi
		MUMBLE_PRELOAD="${MUMBLE_OVERLAY_PATH_64}/libmumble.so.1"
		;;
	*32-bit*)
		if [ ! -f "${MUMBLE_OVERLAY_PATH_32}/libmumble.so.1" ]; then
			echo "32-bit libmumble.so.1 not found in ${MUMBLE_OVERLAY_PATH_32}" >&2
			exit 1
		fi
		MUMBLE_PRELOAD="${MUMBLE_OVERLAY_PATH_32}/libmumble.so.1"
		;;
	*)
		if [ -f "${MUMBLE_OVERLAY_PATH_64}/libmumble.so.1" ]; then
			MUMBLE_PRELOAD="${MUMBLE_OVERLAY_PATH_64}/libmumble.so.1"
		fi
		if [ -f "${MUMBLE_OVERLAY_PATH_32}/libmumble.so.1" ]; then
			MUMBLE_PRELOAD="${MUMBLE_PRELOAD} ${MUMBLE_OVERLAY_PATH_32}/libmumble.so.1"
		fi
		if [ -z "${MUMBLE_PRELOAD}" ]; then
			echo "Neither 32-bit or 64-bit libmumble.so.1 found"
			exit 1
		fi
esac

LD_PRELOAD="${MUMBLE_PRELOAD} ${LD_PRELOAD}" "${@}"