You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
16 lines
336 B
16 lines
336 B
2 years ago
|
function EPHEMERAL_PORT() {
|
||
|
LOW_BOUND=49152
|
||
|
RANGE=16384
|
||
|
while true; do
|
||
|
CANDIDATE=$[$LOW_BOUND + ($RANDOM % $RANGE)]
|
||
|
(echo "" >/dev/tcp/127.0.0.1/${CANDIDATE}) >/dev/null 2>&1
|
||
|
if [ $? -ne 0 ]; then
|
||
|
echo $CANDIDATE
|
||
|
break
|
||
|
fi
|
||
|
done
|
||
|
}
|
||
|
|
||
|
port=$(EPHEMERAL_PORT)
|
||
|
echo $port
|