Async WSAConnect failed on XP with error code = 2 ("File not found")

Posted on 16th Feb 2014 07:03 pm by admin

Hi all,

I have very strange bug, please help me if you can.

It is reproduced only on these conditions : WinXP, VS2005, VS2008, build in debug, execute without debugging.

On any other configuration or OS this code works fine.
Also works ok with old VC6.0.
I Tested it also on another XP just in case, same behavior.

I've isolated problematic code in a simple console application (no threads etc).
Just putting :
WSAEventSelect(...., FD_CONNECT | FD_READ | FD_CLOSE)
before WSAConnect, and WSAConnect will fail with error code 2 (means : File not found).
Which is not described in MSDN...also this is fail code when it really cannot connect (server is down or invalid).

If I remove WSAEventSelect (i.e. sync connect) all works.
If I debug code, all works.
If I put break point on WSAConnect line and run this app outside studio, then reach this breakpoint (start debugging) and step through WSAConnect WITH debugger it works....

I'm unable to find anything in the net about this strange behavior.
Also I'm trying to connect to FTP server, which works fine.
I'm attaching full code. It only test WSAConnect in async mode, nothing more.

10x,
Filip

Your Answer:

Login to answer

Other forums

question about n
I was looking at some of the things you could do with php and one of the things I have tried is n.<

How to refresh a parent page from a modal popup
Hi,I have a modal popup in which I need to upload a file and store in the database should give a mes

Strip Slashes Help
I've got a script that i've downloaded of the net to edit multiple fields from my sql database, and

Suggestions for Functional module
Hello experts,
I Have done B.Sc(Mathematics) and MCA & have learnt SAP/ABAP but do n

Need help making a blockquote and line items conditional
I have some code I bought a few years ago that allows my clients to update content on their site usi

Transaction variant for VA02 not working
My requirement is to have transaction for user to only add the output and print a sales order.

MII Trends - add data onto chart object
Hello,

Can anyone please provide some thoughts on my current requirement:
its pretty

extending tidy
I have problem with type-hinting and extending tidy. This code creates error:
Code: class cMyTidy

The control with ID 'ace' requires a ScriptManager on the page
I'm trying to add a simple AlwaysVisibleControlExtender to my page, but it's not working. I get the

Weird Problem with curl while sending data
I am facing a weird problem with sending data to a site via curl.

If i send the value by this