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

Pass sql into pl/sql and create RMAN duplicate script.
Hi,

I'm new to pl/sql and I'm trying to write a script that will generate some RMAN comma

login page does not execute a else statement
I've created a login page using sessions.
When an incorrect user name or password is entered then

Contents of variable not echoing
Hey guys, hopefully this is an easy one...

In this line, the variables are not echoing out. T

Writing Windows Device Drivers with C
Yes: one of the nice features of C is void*. You can put anything there and get anything out. Very

Create multiple (n) arrays
Hi there,

I have the following need:

I have 2 arrays (coming from a databases)

gather checkbox data from form into email
Hello all,

First, i'd like to thank everyone who responded to my previous posts regarding set

Validating time
Hi Guys

what do you think of the following approach to validate a 24hour time:

http://

help me, how to find text on an external html site using PHP
Would anyone know how to search an external html file for a work or phrase ?

I was thinking s

no idea what to do...
I'm fed up. I had issues with code that I have working on a different site that didn't work on my cu

Whats wrong with my query?
I am trying to get this query to show the appropriate ticked vehicle roof height, unless no boxs are