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> Well the first big problem is that MSGSIZE isn't the same as sizeof(dataMsg)

havent seen that, very good, thanks i will work it out

> What output do you get?

None, i have some printf() in...

.... and please do not regard to the typing error in the RECEIVER main

1)everything is compiled well and works, my first thought was that it is relied on the flags
maybe i forgot something.
...

Its an piece of code, that looks similar whereever i searched. I only experimented with
the flags to have a non-blocking behaviour and a receiver that runs in endless loop.

you'r right...





IN HEADERFILE---------------

#define MSGSIZE 20

hi,

wrote 2 applications, one for sender and one for receiver. To send a msg, the sender application is started manually at commandline and 1 msg is sent and received. everthing works great. But...