#!/bin/sh
if test -f /etc/oss.conf
then
  . /etc/oss.conf
else
  OSSLIBDIR=/usr/lib/oss
fi

if ! test -f /proc/opensound/devfiles
then
  echo OSS not loaded.
  exit 0
fi

if ! test -f $OSSLIBDIR/etc/installed_drivers
then
	echo $OSSLIBDIR/etc/installed_drivers is missing.
	exit 1
fi


# Save mixer settings automatically if requested
if test -f $OSSLIBDIR/etc/userdefs && grep -q "autosave_mixer yes" $OSSLIBDIR/etc/userdefs
then
	/usr/sbin/savemixer
fi

# Save legacy devices
/usr/sbin/ossdevlinks -N

PROGRAMS="`fuser /dev/mixer* /dev/dsp* /dev/midi* /dev/oss/*/* 2>/dev/null`"
  
if test "$PROGRAMS " != " "
then
  echo
  echo Some applications are still using OSS - cannot unload
  echo

  for n in $PROGRAMS
  do
    if test -f /proc/$n/cmdline
    then
      echo $n `cat /proc/$n/cmdline | sed 's/\x00/ /g'`
    else
      echo $n Unknown
    fi
  done

  echo
  echo Please stop these applications and run soundoff again
  exit 2
fi

for i in 1 2 3
do
  for n in `egrep "^osscore" /proc/modules 2>/dev/null | cut -d ' ' -f 4 | sed 's/,/ /g'` `cat $OSSLIBDIR/etc/installed_drivers | sed 's/#.*//'` osscore
  do
    /sbin/modprobe -r $n > /dev/null 2>&1
  done
done

if ! test -f /proc/opensound/devfiles # OSS gone?
then
  exit 0
fi

echo Cannot unload the OSS driver modules

exit 3