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#!/bin/sh
# retiolum host functions
#@include core
tinc_path=${tinc_path:-/etc/tinc}
netname=${netname:-retiolum}
hosts_dir=${hosts_dir:-$tinc_path/$netname/hosts}
check_free_v4(){
myipv4=${1-10.243.0.-1}
v4num=${myipv4##*.}
printf "Retard check: "
if [ "$v4num" -gt 0 -a "$v4num" -lt "256" ];
then
info "No retard detected\n"
cd $hosts_dir
info "Check if ip is still free: "
for i in `ls -1`; do
if grep -q -e $myipv4\$ $i ;then
warn "Host IP already taken by $i! "
return 1
fi
done
info "Passed\n"
return 0
else
error "you are made of stupid. bailing out\n"
return 1
fi
cd - >/dev/null
}
find_active_nodes(){
# TODO this function currently only supports a single address for a host
cd $hosts_dir
# posix grep does not support [[:space:]]
set +f
for name in `
grep '^[ ]*Address[ ]*=' * |
cut -d: -f1 | sort | uniq
`; do
if eval "`sed -n '
s/[ ]\+//g
s/^\(Address\|Port\)=\(.*\)/\1="\${\1+\$\1\n}\2"/p
' $name`"; then
port=${Port-655}
for host in $Address; do
if nc -zw 2 $host $port 2>/dev/null; then
echo "$name [('$host', $port)]"
fi &
done
wait
fi &
done
wait
cd - >/dev/null
}
find_supernodes(){
cd $hosts_dir
set +f
for name in `
grep '^[ ]*Address[ ]*=' * |
cut -d: -f1 | sort | uniq
`; do
if eval "`sed -n '
s/[ ]\+//g
s/^\(Address\|Port\)=\(.*\)/\1="\${\1+\$\1\n}\2"/p
' $name`"; then
port=${Port-655}
for host in $Address; do
if nc -zw 2 $host $port 2>/dev/null; then
echo "$name [('$host', $port)]"
fi &
done
wait
fi &
done
wait
cd - >/dev/null
}
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