git: 9front

ref: f6ba99ca23b60a80d820930f649d2a9dab032f96
dir: /sys/src/cmd/audio/scream/screamrecv/

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#!/bin/rc
rfork e
lifc=()
while(~ $1 *.*.*.*){
	lifc=($lifc $1)
	shift
}
if(! ~ $#* 0){
	echo 'Usage: audio/screamrecv [interfaceip]...' >[1=2]
	exit 'usage'
}
if(~ $#lifc 0) lifc=`{awk '/4u/{print $1}' /net/ipselftab}
exec aux/listen1 -t -p4 -O^'addmulti '^$lifc udp!239.255.77.77!4010 rc -c 'exec audio/screamdec > /dev/audio'