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

progress bar...need expert opinion of experienced webmaster
Hey guys, quick question:

I want to display a progress bar when I upload files, but I am not

how to put the 0-100 numbers into 1.txt and 100-200 into 2.txt ?
how to put the 0-100 numbers into 1.txt and 100-200 into 2.txt and so on 200-300 into file 3.txt ?

Remove directories not empty
hi,
i have an array that contains some names (1,4,6,56...). Every integer is a name of a folder.<

PHP arrays into arrays need help
Hello
I am trying to highlight the days on my calendar based on the dates that i have in my datab

disabling a button server-side then re-enabling client-side breaks button postback
I have a tabbed container and a button (not in the container) on a page. If the first tab is selecte

php redirecting
i wont open a new thread but i have a question about redirecting....
i wonder why my code doesnt

Kill a process
I have a question - how can I kill a process from a command line or by using Oracle SQL Developer? I

Problem with DB connection
Hello there! I'm new to this forum and I'm new to PHP coding also. I wrote something that doesn't ma

DYNPRO_FIELD_CONVERSION
Hi gurus,

I got a dump when I run one of my program. the dump is described below:

question about stripslashes and real_escape_string
im cleaning up an old app that I wrote fixing some of the vulernabilities from attacks.

I hav