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

No comments posted yet

Your Answer:

Login to answer
107 Like 25 Dislike
Previous forums Next forums
Other forums

How to make a input/output field with multiple lines
Hello.
I put a input/output field on the screen but I could not change height of it. I need to

cURL Sending File as Post
This is a bit complicated, I'm just hoping someone else has run into this and knows how to do it a d

Snapshot from video
anyone knw how to make a snapshot maker from avi n mkv format.
for example if i give a direct lin

What is SAP Avatar ?
Hi All,

This G.Satish , my boss asked me to explore on SAP Avatar. I searced in internet

Problem with an browser game.
Hello,i just joined that great forum and i got php prob,its kinda freaky...anyway i got browser game

Please help - should be a simple fix.. driving me nuts
Everything seemed to be working fine. I have a table, it alphabetically lists a bunch of cities and

HTML Email rec'd as Source Code
The code does create and send the email successfully. However, the message shows as html code and n

Day of week
I am using PHP version 5.0.5
I have a varaible ($DATE (date format yyyy-mm-dd)) that is being inc

dynamic table with forms
I have a table that is populated with mysql data and in teh first column there is a raido button tha

insert mysql embeded videos as blobs?
Using TinyMCE my client will be able to embed images and flash videos into large columns of text whi

Sign up to write
Sign up now if you have flare of writing..
Login   |   Register
Follow Us
Indyaspeak @ Facebook Indyaspeak @ Twitter Indyaspeak @ Pinterest RSS



Play Free Quiz and Win Cash