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

checkbox update
I am having a brain fart right now and i cant remember how to do this. if anyone could help that wou

Problem related to Creation of PDF File?
Hi All,
I am facing a problem related to creation pdf file. when I am creating a pdf file of do

php code to accept and delete incoming data
Using following HTML Code please show me how to write PHP code to accept and delete the incoming dat

This is driving me nuts!
This insert query looks to be alright, however I get this error:

QuoteYou have an error in yo

How to update this array?
I am saving a string that looks this: username1, username2, username3...
into a single cell in a

Logic question
im wondering what's the best method to do the above list:

it is for alliance @ MMORPG game

Pagination
Hi All,

I think I'm finally getting somewhere with pagination!

I can now submit a quer

Progress bar tracking file downloads
Hey guys, was wondering if there was a way to track how far a file has been downloaded. I know there

remove innitial

and

tags
i am using tiny_mce as a text editor for my CMS.
buy now the problem is it add <p>

Problem with PHP code- simple contact form
Hi Folks,
I'm relativily new to PHP; I know HTML and CSS stuff but I have a problem- I have a co