winsocket2 problem caused lNet onConnect not function properly in
WINCE
lazarus / 38-Networking and Web Programming

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RobinHoo · 2012-11-16 02:18

Hi, All

I'm using lNet to develop a network program in WINCE environment. And
found the onConnect not function properly. It will report connect
successfully even the server not running. And after digging in the
source code I found the definition of WINSOCK2_DLL links the wrong
dll. The file is located under
lazarus\fpc\2.6.0\source\rtl\wince\winsock2.pp. And the original
definition is Code: [Select]Const
  WINSOCK_VERSION = $0202;
  WINSOCK2_DLL = 'ws2_32.dll';
after I revised the definition to Code: [Select]Const
  WINSOCK_VERSION = $0202;
  {$ifdef WINCE}
  WINSOCK2_DLL = 'ws2.dll';
  {$else}
  WINSOCK2_DLL = 'ws2_32.dll';
  {$end}
The problem is solved. Share with all of us to avoid any headache in
troubleshooting.

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Almindor · 2012-11-18 18:26

This is not a bug. The code in FPC is correct but you should be using
rtl/wince/winsock2.pp

If you are cross-compiling from win32 to winCE make sure your target
is correctly set. The winCE winsock2 version contains the required
ifdef.

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RobinHoo · 2012-11-18 23:17

Hi, Almindor

Sorry for my slip of the pen. It should be wince target winsocket2.pp
file. And I did test it and after revise and before it, the function
of onConnect performed differently.

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marcov · 2012-11-19 12:02

Strange, my FPC 2.6.0 reads:

Const
        WINSOCK_VERSION = $0202;
{$IFNDEF WINCE}
        WINSOCK2_DLL = 'ws2_32.dll';
{$ELSE WINCE}
        WINSOCK2_DLL = 'ws2.dll';
{$ENDIF WINCE}