cnielsen@imada.dk (Carl Alex Friis Nielsen) (04/17/91)
I am currently trying to familiarize myself with the socket-mechanism in SunOS 4.1.1. I have written small programs wich send and receive datagrams via sockets, wich work fine; but now I want to broadcast. I have tried to do this by modifying a program wich sends a packet to a given socket on a given host. First I create a datagram-socket, wich I allow to broadcast with setsocopt. Then I build an address with family:= AF_INET, s_addr:= INADDR_BROADCAST and the port I want to send to. Finaly I try to broadcast a packet. I have another program running, which just listens at a known socket; which works fine when a packet is send to it explicitly. When i try the broadcasting program nothing appears to be happening. I would appreciate it a lot if someone would tell me how to do it/what I am doing wrong. A simple programming example would be werry helpfull. Thanks in advance. Carl Alex Friis Nielsen EMAIL: cnielsen@imada.dk