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

Can't get the unicode character
I'm trying to get some text from various parts of a file. I have converted the file to hex (bin2hex)

Mail sending is slow on server
Why mail is taking time to be send on apache-linux server

Easy administration on MySQL databases
My website is database driven and I am very tired of manually making queries to my tables in order t

start new row of pictures
on my site www.budstreasureauctions.com there is a featured auctions box that users will pay to get

filesize() returns 0
I have a socket program that runs in an infinite loop, listening for connections, in this socket I h

Dealing with code in db query
I am dealing with C code and I need to make sure it is encoded some how to ensure its integrity and

Fetching array then reversing it
Hi, I have a simple problem, I'll try to explain it as best I can:
News entries in my database ar

close site for maintenance
i get a tutorial, saying the following code can put our site offline, and only the developer can vie

Material Issuing for receiving batch
Dear All experts in MM/ PP,

Material issuing from main stores to factory is currently usi

Login Control?!
I have a Web Site that uses the login control also I have set the destinationurl to the page I want