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I have a Protobuf serialized data that is being sent over UDP multicast. I read it using socat from bash as follows

socat UDP4-RECVFROM:1277,ip-add-membership=239.195.1.2:192.168.254.5,fork,reuseaddr -

I want to chain this with protoc in order to keep decoding data in every packet. How can I do that ? When I do

socat UDP4-RECVFROM:1277,ip-add-membership=239.195.1.2:192.168.254.5,fork,reuseaddr - | protoc --decode=proto.Message ./path/to/proto/message.proto

The terminal just hangs. Not sure how to proceed.

marc
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1 Answers1

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The problem turned out to be in socat. remove the fork portion and it works great.

So essentially

socat UDP4-RECVFROM:1277,ip-add-membership=239.195.1.2:192.168.254.5,reuseaddr - | protoc --decode=proto.Message ./path/to/proto/message.proto
marc
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