Well interesting, I finally boiled down the code to a simple C program and also tested it again Solaris & Ubuntu. I've only seen it randomly fail when connecting to a OS X machine. I've tested against both OS X 10.5 and OS X Server 10.4. So there's definitely something fishy when connecting to OS X machine it seems, but other software doesn't seem to have a problem.

You guys have any thoughts how to further investigate what might be going on? I've attached the program I made to test this. When connecting to an OS X machine, it'll sometimes fail to get data from a command. The program runs a series of commands and if one of the commands that should have data doesn't it spits out an extra caps message saying it got 0 bytes when it shouldn't have. This sometimes takes a couple runs before happening. It also occasionally will lock on reading.

Hopefully can figure this out, thanks again. Hopefully the C isn't too messy, haven't done much pure C in a while :)

Attachment: main.c
Description: Binary data


--
Jeremy Knope / Software Developer / Ambrosia Software, Inc. -- 
http://www.AmbrosiaSW.com/




On Apr 14, 2009, at 5:27 PM, Jeremy Knope wrote:

I'll see if I can get a boiled down version tomorrow, it's currently in ObjC. I was able to figure out how to do something similar to 'strace' on OS X via 'dtruss' which uses dtrace to do a trace of system calls. If it's at all helpful, attached is a trace of a successful 'ls -lL' command and then one where i get no data, I put some space & markers between the separate calls.

I'll post a smaller sample app if I get it to have the same problem in that form tomorrow. Thanks for the help guys. Hopefully can figure out what's going on. Very possible something weird I'm doing :)
<sshd-trace.txt>
--
Jeremy Knope / Software Developer / Ambrosia Software, Inc. -- 
http://www.AmbrosiaSW.com/




On Apr 14, 2009, at 5:18 PM, Daniel Stenberg wrote:

On Tue, 14 Apr 2009, Jeremy Knope wrote:

Any help is appreciated, if you need to see some code, would you
prefer it on a paste site or just attached?

Yes, preferably I'd like to see a complete small app written in portable C
that we can use in our ends to repeat this problem...

--

/ daniel.haxx.se

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