Use send() instead of sendto() for UDP

fjkum · 01-20-2010, 03:08 AM

Hi,

Can I use send() function to send UDP datagram through a socket instead of calling the sendTo()?

ForzaItalia2006 · 01-20-2010, 06:14 AM

Hey,

it would help to check the man page for the send(2) system call.

"The send() call may be used only when the socket is in a connected state (so that the intended recipient is known)." As per definition, UDP is never in a connected state, so that you can't use send(2) instead of sendto(2).

- Andi -

fjkum · 01-20-2010, 10:16 PM

Ah okay, that explains why I still can use send(); that's because my implementation of UDP is a "connected" state by calling to connect() before send().

Thanks!