Good Day,

I'm developing an application in VC++ that communicates using UDP protocol with winsock on Windows XP. Previously I've been able to assume that all packets being received by the tool were from a single target. However I'm now doing a broadcast receive. The listening thread has minimal overhead and should spend all of its time on the below line:

```
rv = recvfrom(socket, 
              p_buffer_p, 
              p_size,
              0,
              (sockaddr*)&clientService_in, //This is set to do a broadcast recv
              &SenderAddrSize);

```

My question is whether or not I can assume that a buffer that I get from a single return from recvfrom is from a single target. That is, does 1 call to send in the sending app equal 1 return from recvfrom in the receiving app? Or can multiple sends from multiple senders get mushed together into 1?

I'm assuming that a single send from a target can't get split up into multiple returns from recvfrom. I've always assumed this and never had a problem anyway.

One more thing, its a SOCK\_DGRAM type of socket.