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

Calling variables
I want to call this to my website but it doesn't display what I want it to,

Code: <h5&

Need help with some php code :)
Hey! I'm quite new to this whole thing, so please don't fire me with shait on this one =D

I'm

Hi, explode and strstr.
Hi, I seem to be confused about the strstr function, eg. i have a string like:
"a.b.c.d.e.f&

explode() function problem maybe
Hi I'm having trouble searching my database. When I type two words in the search field it only searc

Get word number x from string?
How can I use a function to loop through a string, and "have a look at" every word in the

Ball movement
I want to move a ball from one point to another and it should hit a group of balls at the other end

How to sum these output values
Hi

I need sum the month totals
SELECT region_name, area_name ,SUM (CASE WHEN S

PHP login form help (Done Most of It)
Hi i am having a problem, when i try logging in it is always saying "Invalid Login" im not

Using Microsoft Exchange Server with PHP
Hi,

I wanted to know if its possible to fetch email attachments from the exchange server usin

mysql_affected_rows() usage
Possibly a MySQL issue, but the function that is not behaving in the anticipated way is a PHP functi