mynetcat

mynetcat is a simple netcat program which handles UDP packets.

This can be used as either a server or a client. To test it out, simply open two terminals (actually, you can use your own server/client and just use mynetcat separately). On one terminal, run the server version:

./mynetcat -l -u -p port [-C]

and on another, run the client:

./mynetcat -p port -u -h host [message(s) to send]

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Usage:

In the first form, mynetcat listens on the given port for UDP packets and writes them to standard out. With the C option they are written both in hexidecimal and (when possible) as ASCII, in a manned such as the hexdump -C command.

In the second form, takes data from stdin and on close of stdin sends the data as a UDP packet to the given port and host.

The host can be either a raw IP or a DNS name. The port number will be in decimal.

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Example

Set up the server:

./mynetcat -l -u -p 4444 -C

Set up the client:

./mynetcat -p 4444 -u -h localhost hey there! This is an example message.

And your output should echo what you wrote.