raw socket programming

bigboss360 · 10-15-2009, 10:52 AM

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

favoretti · 10-15-2009, 10:59 AM

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

bigboss360 · 10-17-2009, 09:11 AM

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

Again many thanks!