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

Please help with SMTP Authenticated PHP Email Form
Hello, I'm creating a PHP email form, and for this particular server, I have to use SMTP Authenticat

chat
hello i'm amir i need a chat source code in asp.net 2.0 without Ajax. anybody can help me?

a function to check directory depth
I'm working on a php script to upload files in to a set directory.
the user can select to upload

Convert Binary String to Decimal
Trying to Get:
Decimal: 305419896

Out of:
Binary String: xV4

Casting Decimals in Oracle
This code worked as a query in DB2, but I am not sure what the syntax is for casting decimals in Ora

Binding 2 UDP sockets on same port, connected to different destinations, 1 receives
Hello,
My application wants to send/recv data to 2 different UDP ports on a remote computer, us

RFQ Configuration - can you make PLANT field an optional field in ME42
Is there a way to make the plant field on an RFQ optional in change mode (ME42)?

update the selected existing records of database
Hi frndz,
I am new to php and get stuck....

Edit.php > Update.php > Updatea

PHP friend keyword equivalent
is there a PHP equivalent for the C++ friend keyword?

Creating a custom API
I'm creating a site, and I need to create a basic API. Unfortunately I have no idea where to start.

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