raw socket programming
 

Hello,

I am using the write() call to to send data over a raw socket. While running my program, this call returns always the correct data length that are written to the socket even when the network is congested.

I would like to know whether the write() call is a blocking function, or a MAC buffer overflow might happens (frames dropped) even when the write() call returns the correct data lenght writen to the socket.


Thanks by advance

write() is blocking, so if your socket is opened with O_NONBLOCK write will return EAGAIN.

Thank you very much. That was very useful.
Also, I would appreciate if you have a useful link to network programming.

Again many thanks!