Broadcasting on a socket
Carl Alex Friis Nielsen
cnielsen at imada.dk
Wed Apr 17 11:00:00 AEST 1991
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 at imada.dk
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