#! /bin/sh
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
# This is the audio_clean program.
# 
# Following is the syntax for calling the script:
#	scriptname [-s|-f|-i|-I] devicename [-A|-D] [username] [zonename]
#           [zonepath]
#
# $1:	-s for standard cleanup by a user
#	-f for forced cleanup by an administrator
#	-i for boot-time initialization (when the system is booted with -r)
#	-I to suppress error/warning messages; the script is run in the '-i'
#	mode
#
# $2:	devicename - device to be allocated/deallocated, e.g., sr0
#
# $3:	-A if cleanup is for allocation, or -D if cleanup is for deallocation.
#
# $4:	username - run the script as this user, rather than as the caller.
#
# $5:	zonename - zone in which device to be allocated/deallocated
#
# $6:	zonepath - root path of zonename
#
# Unless the clean script is being called for boot-time
# initialization, it may communicate with the user via stdin and
# stdout.  To communicate with the user via CDE dialogs, create a
# script or link with the same name, but with ".windowing" appended.
# For example, if the clean script specified in device_allocate is
# /etc/security/xyz_clean, that script must use stdin/stdout.  If a
# script named /etc/security/xyz_clean.windowing exists, it must use
# dialogs.  To present dialogs to the user, the dtksh script
# /etc/security/lib/wdwmsg may be used.
#
# This particular script, audio_clean, will work using stdin/stdout, or
# using dialogs.  A symbolic link audio_clean.windowing points to
# audio_clean.


trap "" INT TERM QUIT TSTP ABRT

setvar USAGE = ""usage: $0 [-s|-f|-i|-I] devicename [-A|-D][username][zonename][zonepath]""
setvar PATH = ""/usr/bin:/usr/sbin""
setvar WDWMSG = ""/etc/security/lib/wdwmsg""
setvar MODE = ""allocate""

if test $(basename $0) != $(basename $0 .windowing) {
  setvar WINDOWING = ""yes""
} else {
  setvar WINDOWING = ""no""
}

#
# 		*** Shell Function Declarations ***
#

proc msg {
  	if test $WINDOWING = "yes" {
	  if test $MODE = "allocate" {
	    setvar TITLE = ""Audio Device Allocation""
	    } else {
	    setvar TITLE = ""Audio Device Dellocation""
	  }
	  $WDWMSG "$ifsjoin(ARGV)" $TITLE OK 
	} else {  
	  echo "$ifsjoin(ARGV)"
	}
}

proc fail_msg {
	if test $MODE = "allocate" {
		msg "$0: Allocate of $DEVICE failed."
	} else {
		msg "$0: Deallocate of $DEVICE failed."
	}
	exit 1
}

#
# 	Main program
#

# Check syntax, parse arguments.

while getopts ifsI c
{
	match $c {
	with i
		setvar FLAG = "$c"
	with f
		setvar FLAG = "$c"
	with s
		setvar FLAG = "$c"
	with I
		setvar FLAG = 'i'
		setvar silent = 'y'
	with \?  msg $USAGE
      	     exit 1
	}
}

shift $(expr $OPTIND - 1)

setvar DEVICE = "$1"
if test $2 = "-A" {
	setvar MODE = ""allocate""
} elif test $2 = "-D" {
	setvar MODE = ""deallocate""
}
if test $MODE != "allocate" -a $MODE != "deallocate" {
	msg $USAGE
	exit 1
}
setvar ZONENAME = "$4"
setvar ZONEPATH = "$5"
setvar SAVEDIR = '/etc/security/audio'
setvar MAP = $(dminfo -v -n $DEVICE)
setvar DEVICE = $(echo $MAP | cut -f1 -d:)
setvar TYPE = $(echo $MAP | cut -f2 -d:)
setvar FILES = $(echo $MAP | cut -f3 -d:)

if test ! -d ${SAVEDIR}
{
    /usr/bin/mkdir -m 0755 -p ${SAVEDIR} || fail_msg
    /usr/bin/chown root:sys ${SAVEDIR} || fail_msg
}

for d in [$FILES]
{
    setvar x = "$(expr $d : '/dev/mixer[0-9][0-9]*)"
    if test $x -ne 0  {
	setvar DEVNM = "$d"
	break
    }
}
setvar SAVEFILE = ""${SAVEDIR}/$(basename ${DEVNM})""

if test ${FLAG} = "i" -a ! -r ${SAVEFILE}
{
    /usr/bin/audioctl save-controls -d ${DEVNM} -f ${SAVEFILE} || fail_msg
} else {
    /usr/bin/audioctl load-controls -d ${DEVNM} ${SAVEFILE} || fail_msg
}

exit 0