shared

Linux的无线局域网方案是一个Linux设备驱动程序和子系统 一揽子方案的用意是提供全系列的IEEE 802.11标准的Mac 管理功能

# etc/wlan/shared
#
# Copyright (C) 1999 AbsoluteValue Systems, Inc.  All Rights Reserved.
# --------------------------------------------------------------------
#
# linux-wlan
#
#   The contents of this file are subject to the Mozilla Public
#   License Version 1.1 (the "License"); you may not use this file
#   except in compliance with the License. You may obtain a copy of
#   the License at http://www.mozilla.org/MPL/
#
#   Software distributed under the License is distributed on an "AS
#   IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
#   implied. See the License for the specific language governing
#   rights and limitations under the License.
#
#   Alternatively, the contents of this file may be used under the
#   terms of the GNU Public License version 2 (the "GPL"), in which
#   case the provisions of the GPL are applicable instead of the
#   above.  If you wish to allow the use of your version of this file
#   only under the terms of the GPL and not to allow others to use
#   your version of this file under the MPL, indicate your decision
#   by deleting the provisions above and replace them with the notice
#   and other provisions required by the GPL.  If you do not delete
#   the provisions above, a recipient may use your version of this
#   file under either the MPL or the GPL.
#
# --------------------------------------------------------------------
#
# Inquiries regarding the linux-wlan Open Source project can be
# made directly to:
#
# AbsoluteValue Systems Inc.
# [e-mail]
# http://www.linux-wlan.com
#
# --------------------------------------------------------------------
#
# Portions of the development of this software were funded by 
# Intersil Corporation as part of PRISM(R) chipset product development.
#
# --------------------------------------------------------------------

wlan_set_ssid_schemefile ()
{
	# Find the scheme file 
	if [ -d /var/state/pcmcia ] ; then
		WLAN_SCHEMEFILE="/var/state/pcmcia/scheme"
	elif [ -d /var/lib/pcmcia ] ; then
        	WLAN_SCHEMEFILE="/var/lib/pcmcia/scheme"
	else
		WLAN_SCHEMEFILE="/var/run/pcmcia-scheme"
	fi

	# Collect the current scheme name and save the file
	if [ -r $WLAN_SCHEMEFILE ] ; then
		WLAN_SCHEME=`cat $WLAN_SCHEMEFILE`
		cp $WLAN_SCHEMEFILE /tmp/wlan_scheme_`date +"%T"`.tmp
	else
		touch /tmp/wlan_scheme_`date +"%T"`.tmp
		
	fi

	# Set up the <scheme:SSID> string
	if [ ! "$WLAN_SCHEME" ] ; then 
		WLAN_SCHEME="default"
	fi
	WLAN_SCHEME="$WLAN_SCHEME:$1"

	# Write to schemefile
	echo $WLAN_SCHEME > $WLAN_SCHEMEFILE
}

wlan_restore_schemefile ()
{
	# Find the scheme file 
	if [ -d /var/state/pcmcia ] ; then
		WLAN_SCHEMEFILE="/var/state/pcmcia/scheme"
	elif [ -d /var/lib/pcmcia ] ; then
        	WLAN_SCHEMEFILE="/var/lib/pcmcia/scheme"
	else
		WLAN_SCHEMEFILE="/var/run/pcmcia-scheme"
	fi

	TMPFILE=`ls /tmp/wlan_scheme*.tmp | tail -n 1`

	if [ -r $TMPFILE ] ; then
		cat $TMPFILE > $WLAN_SCHEMEFILE
		rm -f $TMPFILE
	else
		echo "wlan_restore_schemefile: No wlan_scheme\*.tmp file found."
	fi
}