usr.sbin/zzz/zzz.sh

   1 #!/bin/sh
   2 #
   3 # Suspend the system using either ACPI or APM.
   4 # For APM, "apm -z" will be issued.
   5 # For ACPI, the configured suspend state will be looked up, checked to see
   6 # if it is supported, and "acpiconf -s <state>" will be issued.
   7 #
   8 # Mark Santcroos <marks@ripe.net>
   9 #
  10
  11 PATH=/sbin:/usr/sbin:/usr/bin:/bin
  12
  13 ACPI_SUSPEND_STATE=hw.acpi.suspend_state
  14 ACPI_SUPPORTED_STATES=hw.acpi.supported_sleep_state
  15 APM_SUSPEND_DELAY=machdep.apm_suspend_delay
  16
  17 # Check for ACPI support
  18 if sysctl $ACPI_SUSPEND_STATE >/dev/null 2>&1; then
  19         # Get configured suspend state
  20         SUSPEND_STATE=$(sysctl -n $ACPI_SUSPEND_STATE)
  21
  22         # Get list of supported suspend states
  23         SUPPORTED_STATES=$(sysctl -n $ACPI_SUPPORTED_STATES)
  24
  25         # Check if the configured suspend state is supported by the system
  26         if echo "$SUPPORTED_STATES" | grep "$SUSPEND_STATE" >/dev/null; then
  27                 # execute ACPI style suspend command
  28                 exec acpiconf -s "$SUSPEND_STATE"
  29         else
  30                 echo -n "Requested suspend state $SUSPEND_STATE "
  31                 echo -n "is not supported."
  32                 echo    "Supported states: $SUPPORTED_STATES"
  33         fi
  34 # Check for APM support
  35 elif sysctl $APM_SUSPEND_DELAY >/dev/null 2>&1; then
  36         # Execute APM style suspend command
  37         exec apm -z
  38 else
  39         echo "Error: no ACPI or APM suspend support found."
  40 fi
  41
  42 exit 1