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

Array help
Hello i got this code to fetch data from database but it is not working it displays
7
Array

XML Grouping
I'm using xml_parse_into_struct to get all my elements, but now I need to group them. For example, h

IP Logger for Voting Script
Can anybody help me place an IP logger into my voting script?
I know that maybe it is not as secu

How to validate from 2 possible answers
Hi

I hope somebody can help me with what will probably be really simple, I'm pulling my hair

Query issues
I probably have this setup wrong well I know I do because nothing is showing up now. What I want is

Disable html within defined tags
I have a mysql database that allows users to enter content with html, but I also want to have a tag

How do I use a global footer..?
If my index.php has a bole bunch of if functions and exit's in them

regex for quoted text within a string
I am still getting the hang of regex expressions, but I cant seem to figure out how I would escape q

Retrieving Data from Two Different Databases
Hello All,

Ran into another problem and would appreciate some help! I have two datab

FlashVar function how to insert variables
Hi guys. Im new in this forum and also new in php programming. Can you help me about this code?
<