I must say I agree to what Jakobs says. I thought the functions
sendto()/recvfrom() were meant exactly for situations like this.
Simon
Jakob Stoklund Olesen wrote:
Kieran Mansley <kie...@recoil.org> writes:
On Thu, 2009-08-06 at 15:36 -0700, Brian Lam wrote:
I looked into udp.c and saw that udp_input() checks both the source and
destination port of connected pcbs before it considers it a match(line
195, rev 1.109). I think that this may be in violation of RFC 768 which
states that:
"Source Port is an optional field, when meaningful, it indicates the port
of the sending process, and may be assumed to be the port to which a
reply should be addressed in the absence of any other information. If
not used, a value of zero is inserted."
Could you file a bug for this on savannah?
On the other hand, from Linux "man 2 connect":
If the socket sockfd is of type SOCK_DGRAM then addr is the address to
which datagrams are sent by default, and the only address from which
datagrams are received. If the socket is of type SOCK_STREAM or
SOCK_SEQ‐ PACKET, this call attempts to make a connection to the
socket that is bound to the address specified by addr.
If you want to receive UDP from anybody, don't call connect().
/jakob
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