OpenTransport binding
OpenTransport binding
- Subject: OpenTransport binding
- From: mike <email@hidden>
- Date: Fri, 7 Jun 2002 12:53:52 -0400
Hello,
I'm going to apologize in advance if this topic is unsuitable for
this forum.
I just picked up the OpenTransport docs earlier this week and have been
trying to do a little network programming using UDP packets to send info
back and forth between a Mac and a Solaris Unix machine. I have no
problems getting the info from the Mac to the Unix machine, but I am
having problems binding an endpoint, which uses a UDP endpoint provider,
to the port/address I want to receive packets on with the Mac. I'm
writing in C and am having issues with matching up the types of
structures that I need to pass the OTBind function. The OTBind function
wants a structure of type TBind that includes the address in a TNetBuf,
but when I try to set the TNetBuf.buf to an InetAddr containing the IP
and port I want to receive on it says it wants an unsigned char pointer
and wont accept the InetAddr pointer. I cant figure out how to get the
port and address i want into the TBind struct that I need to pass to
OTBind, and all the sample code I find is in C++ and the functions take
different arguments.
Here's a snippet of the applicable code i've written:
TBind reqAddr, retAddr;
InetAddress thisAddr; // which i initialize to the port/address
i want
udpIn = OTOpenEndpoint(OTCreateConfiguration("udp"), 0, nil, &err);
reqAddr.addr.buf = &thisAddr;
reqAddr.addr.len = sizeof(thisAddr);
reqAddr.addr.maxlen = sizeof(struct InetAddress);
junk = OTBind(udpIn, &reqAddr, &retAddr);
I'll be the first to admit that my understanding of all the structures
and functions is foggy, so if anyone could provide me with a little info
as to what I'm doing wrong that would be much appreciated.
Thanks,
Mike
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