mirror of
https://git.wownero.com/wownero/wownero.git
synced 2024-12-23 12:58:53 +00:00
174 lines
3.4 KiB
Bash
174 lines
3.4 KiB
Bash
#!/sbin/sh
|
|
|
|
# --------------------------------------------------------------
|
|
# -- DNS cache save/load script
|
|
# --
|
|
# -- Version 1.2
|
|
# -- By Yuri Voinov (c) 2006, 2014
|
|
# --------------------------------------------------------------
|
|
#
|
|
# ident "@(#)unbound_cache.sh 1.2 14/10/30 YV"
|
|
#
|
|
|
|
#############
|
|
# Variables #
|
|
#############
|
|
|
|
# Installation base dir
|
|
CONF="/etc/opt/csw/unbound"
|
|
BASE="/opt/csw"
|
|
|
|
# Unbound binaries
|
|
UC="$BASE/sbin/unbound-control"
|
|
FNAME="unbound_cache.dmp"
|
|
|
|
# OS utilities
|
|
BASENAME=`which basename`
|
|
CAT=`which cat`
|
|
CUT=`which cut`
|
|
ECHO=`which echo`
|
|
EXPR=`which expr`
|
|
GETOPT=`which getopt`
|
|
ID=`which id`
|
|
LS=`which ls`
|
|
|
|
###############
|
|
# Subroutines #
|
|
###############
|
|
|
|
usage_note ()
|
|
{
|
|
# Script usage note
|
|
$ECHO "Usage: `$BASENAME $0` [-s] or [-l] or [-r] or [-h] [filename]"
|
|
$ECHO .
|
|
$ECHO "l - Load - default mode. Warming up Unbound DNS cache from saved file. cache-ttl must be high value."
|
|
$ECHO "s - Save - save Unbound DNS cache contents to plain file with domain names."
|
|
$ECHO "r - Reload - reloadind new cache entries and refresh existing cache"
|
|
$ECHO "h - this screen."
|
|
$ECHO "filename - file to save/load dumped cache. If not specified, $CONF/$FNAME will be used instead."
|
|
$ECHO "Note: Run without any arguments will be in default mode."
|
|
$ECHO " Also, unbound-control must be configured."
|
|
exit 0
|
|
}
|
|
|
|
root_check ()
|
|
{
|
|
if [ ! `$ID | $CUT -f1 -d" "` = "uid=0(root)" ]; then
|
|
$ECHO "ERROR: You must be super-user to run this script."
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
check_uc ()
|
|
{
|
|
if [ ! -f "$UC" ]; then
|
|
$ECHO .
|
|
$ECHO "ERROR: $UC not found. Exiting..."
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
check_saved_file ()
|
|
{
|
|
filename=$1
|
|
if [ ! -z "$filename" -a ! -f "$filename" ]; then
|
|
$ECHO .
|
|
$ECHO "ERROR: File $filename does not exists. Save it first."
|
|
exit 1
|
|
elif [ ! -f "$CONF/$FNAME" ]; then
|
|
$ECHO .
|
|
$ECHO "ERROR: File $CONF/$FNAME does not exists. Save it first."
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
save_cache ()
|
|
{
|
|
# Save unbound cache
|
|
filename=$1
|
|
if [ -z "$filename" ]; then
|
|
$ECHO "Saving cache in $CONF/$FNAME..."
|
|
$UC dump_cache>$CONF/$FNAME
|
|
$LS -lh $CONF/$FNAME
|
|
else
|
|
$ECHO "Saving cache in $filename..."
|
|
$UC dump_cache>$filename
|
|
$LS -lh $filename
|
|
fi
|
|
$ECHO "ok"
|
|
}
|
|
|
|
load_cache ()
|
|
{
|
|
# Load saved cache contents and warmup cache
|
|
filename=$1
|
|
if [ -z "$filename" ]; then
|
|
$ECHO "Loading cache from saved $CONF/$FNAME..."
|
|
$LS -lh $CONF/$FNAME
|
|
check_saved_file $filename
|
|
$CAT $CONF/$FNAME|$UC load_cache
|
|
else
|
|
$ECHO "Loading cache from saved $filename..."
|
|
$LS -lh $filename
|
|
check_saved_file $filename
|
|
$CAT $filename|$UC load_cache
|
|
fi
|
|
}
|
|
|
|
reload_cache ()
|
|
{
|
|
# Reloading and refresh existing cache and saved dump
|
|
filename=$1
|
|
save_cache $filename
|
|
load_cache $filename
|
|
}
|
|
|
|
##############
|
|
# Main block #
|
|
##############
|
|
|
|
# Root check
|
|
root_check
|
|
|
|
# Check unbound-control
|
|
check_uc
|
|
|
|
# Check command-line arguments
|
|
if [ "x$*" = "x" ]; then
|
|
# If arguments list empty,load cache by default
|
|
load_cache
|
|
else
|
|
arg_list=$*
|
|
# Parse command line
|
|
set -- `$GETOPT sSlLrRhH: $arg_list` || {
|
|
usage_note 1>&2
|
|
}
|
|
|
|
# Read arguments
|
|
for i in $arg_list
|
|
do
|
|
case $i in
|
|
-s | -S) save="1";;
|
|
-l | -L) save="0";;
|
|
-r | -R) save="2";;
|
|
-h | -H | \?) usage_note;;
|
|
*) shift
|
|
file=$1
|
|
break;;
|
|
esac
|
|
shift
|
|
done
|
|
|
|
# Remove trailing --
|
|
shift `$EXPR $OPTIND - 1`
|
|
fi
|
|
|
|
if [ "$save" = "1" ]; then
|
|
save_cache $file
|
|
elif [ "$save" = "0" ]; then
|
|
load_cache $file
|
|
elif [ "$save" = "2" ]; then
|
|
reload_cache $file
|
|
fi
|
|
|
|
exit 0 |