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Re: OS X CFM Open Transport loopback?
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Re: OS X CFM Open Transport loopback?


  • Subject: Re: OS X CFM Open Transport loopback?
  • From: Michael Swan <email@hidden>
  • Date: Fri, 22 Mar 2002 14:08:09 -0800

Hi,

Thanks to Vincent Lubet, Josh Graessley and Mike Cohen for responding.

The problem turned out to be that the select() call in the UNIX
app was not returning a positive number even though there was
data waiting on the socket fd given to the select(). Strangely,
the problem seems to have gone away, even though I don't believe
we changed the select() call.

We're now sending and receiving loopback data without a problem.

Michael Swan
Neon Software, Inc.

At 2:22 PM -0800 3/21/02, Vincent Lubet wrote:
>I'm not having this problem. I just turned Web Sharing in the Sharing Preferences panel and with IE I can get at my local home page with either http://localhost/ or http://127.0.0.1/.
>
>Are you rather having problems between Classic and the native X side?
>
>Vincent
>
>On Thursday, March 21, 2002, at 01:32 PM, Michael Swan wrote:
>
>>Hi,
>>
>>I'm pretty sure I remember some note on this list recently
>>about IP loopback addresses not working when using the Open
>>Transport shim within a OS X Carbon-CFM application. Of course,
>>the list archive search mechanism is down at the moment :-(
>> (http://www.lists.apple.com/search)
>>so I can't search for this topic.
>>
>>I'm trying to communicate between an UNIX OS X application
>>and a Carbon-CFM application on the same machine. I can
>>successfully send UDP packets from the UNIX app to the CFM app.
>>I can also successfully send packets to to the UNIX app
>>from the same UNIX app. However, when I try to send packets
>>from the CFM app to the UNIX app, via either the loopback
>>address (127.0.0.1) or the machine's actual IP addresss, the
>>UNIX app never sees the packets. These apps are running on
>>OS X 10.1.2.
>>
>>Is this a known problem? Is there a workaround?
>>
>>Michael Swan
>>Neon Software, Inc.
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References: 
 >Re: OS X CFM Open Transport loopback? (From: Vincent Lubet <email@hidden>)

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