#!/bin/sh# # apmd_proxy - program dispatcher for APM daemon# Craig Markwardt (craigm@lheamail.gsfc.nasa.gov) 21 May 1999# Debian-specific version rewritten by Avery Pennarun.## This shell script is called by the APM daemon (apmd) when the state# of any power management function has changed.  The exact events that# trigger the calling of apmd_proxy depend on how apmd was configured# at compile time.## In Debian, you should add scripts to /etc/apm/event.d (or the legacy# /etc/apm/suspend.d and resume.d directories) rather than editing this# script directly, unless you have a good reason.## apmd_proxy is called with specific arguments that describe the event# that has occurred.  It is this script's responsibility to query the# hardware or the APM service (via /proc/apm) for more information,# and to take the appropriate action.## For example, apmd will call "apmd_proxy suspend system" just before# the system is scheduled to go into suspend mode.## If the APM kernel module supports it, apmd_proxy can return an error# code for the suspend and standby events, indicating whether the# pending mode should be rejected.  For example, apmd_proxy may decide# if, based on CPU or network activity, a suspend should be rejected.##   RETURN VALUE:#     0 - nominal return; suspend and standby events are accepted#     1 - reject a suspend or standby (MUST HAVE APM KERNEL SUPPORT)## Here are the calling sequences for apmd_proxy:## apmd_proxy start              - APM daemon has started# apmd_proxy stop               - APM daemon is shutting down# apmd_proxy suspend critical   - APM system indicates critical suspend (*)# apmd_proxy suspend system     - APM system has requested suspend mode# apmd_proxy suspend user       - User has requested suspend mode# apmd_proxy standby system     - APM system has requested standby mode # apmd_proxy standby user       - User has requested standby mode# apmd_proxy resume suspend     - System has resumed from suspend mode# apmd_proxy resume standby     - System has resumed from standby mode# apmd_proxy resume critical    - System has resumed from critical suspend# apmd_proxy change battery     - APM system reported low battery# apmd_proxy change power       - APM system reported AC/battery change# apmd_proxy change time        - APM system reported time change (*)# apmd_proxy change capability  - APM system reported config. change (+)## (*) - APM daemon may be configured to not call these sequences# (+) - Available if APM kernel supports it.## *******************************************************************set -eSUSPEND_ON_AC=false[ -r /etc/apm/apmd_proxy.conf ] && . /etc/apm/apmd_proxy.confif [ "${SUSPEND_ON_AC}" = "false" -a "${2}" = "system" ] \	&& on_ac_power >/dev/null; then    # Reject system suspends and standbys if we are on AC power    exit 1  # Reject (NOTE kernel support must be enabled)fi# old-style /etc/apm/suspend.d and resume.d directories; note that these# scripts usually don't check their command line parameters, since older# versions of apmd didn't provide any!#if [ "$1" = "suspend" -a -d /etc/apm/suspend.d ]; then    run-parts /etc/apm/suspend.dfiif [ "$1,$2" != "resume,suspend" -a -d /etc/apm/resume.d ]; then    run-parts /etc/apm/resume.dfi# new-style event.d directory.  All new event scripts go here.#run-parts --arg="${1}" --arg="${2}" /etc/apm/event.dexit 0