What the function will return when there are two datagrams recieved each of 50 bytes, i have called recvfrom() function with following parameters, int result=recvfrom(sockfd,buffer,100) ??? what will be in buffer and what will be in result

This should explain it all for ya...

Quote:

http://www.mkssoftware.com/docs/man3/recvfrom.3.asp

In UDP, each datagram is delivered separately. In TCP, data is delivered as a stream.