Dear Michal,
Well, I always check msdocs directly, from msdn, and I check it on local install of vstudio express embedded docs, and on embedded doc from WCE 5 sdk, and an old msdn 2000 cd I have (I am concerned with compatibility with old and new systems).

A least, I can say that the 3 functions are available in winsock2 for WCE. (ws2_lib),
and on most of Windows version above or equal to xp.


And when I say winsock2 (ws2 lib) , it is not winsock1 (winsock lib).


For windows 2000 pro, check this :

http://msdn.microsoft.com/en-us/library/windows/desktop/ms738520%28v=vs.85%29.aspx

"....

Support for getaddrinfo on Windows 2000 and older versions

The getaddrinfo function was added to the Ws2_32.dll on Windows XP and later. To execute an application that uses this function on earlier versions of Windows, then you need to include the Ws2tcpip.h and Wspiapi.h files. When the Wspiapi.h include file is added, the getaddrinfo function is defined to the WspiapiGetAddrInfo inline function in the Wspiapi.h file. At runtime, the WspiapiGetAddrInfo function is implemented in such a way that if the Ws2_32.dll or the Wship6.dll (the file containing getaddrinfo in the IPv6 Technology Preview for Windows 2000) does not include getaddrinfo, then a version of getaddrinfo is implemented inline based on code in the Wspiapi.h header file. This inline code will be used on older Windows platforms that do not natively support the getaddrinfo function.


The IPv6 protocol is supported on Windows 2000 when the IPv6 Technology Preview for Windows 2000 is installed. Otherwise getaddrinfo support on versions of Windows earlier than Windows XP is limited to handling IPv4 name resolution.

The GetAddrInfoW function is the Unicode version of getaddrinfo. The GetAddrInfoW function was added to the Ws2_32.dll in Windows XP with Service Pack 2 (SP2). The GetAddrInfoW function cannot be used on versions of Windows earlier than Windows XP with SP2.

Windows Phone 8: This API is supported.

Requirements

Minimum supported client

 Windows 2000 Professional [desktop apps only]

Minimum supported server

 Windows 2000 Server [desktop apps only]

Header
Ws2tcpip.h;
Ws2tcpip.h on Windows 2000 (include Wspiapi.h)

Library
Ws2_32.lib

DLL
Ws2_32.dll

..."

My sole purpose was to replace winsock1 lib an h files with those of winsock2 (see my modified common.h I sent you in 2010/11),
as winsock2 is available on many windows version, including 2000.

Some strange redef in common.h leading to compilation warnings were clarified with the distinction between winsock1 and winsock2.

Well, I think that at least for CE, the code "could" be adapted as I offered (because the present code let us think that getaddrinfo is NOT available in ws2 lib, and IT IS:
http://msdn.microsoft.com/en-us/library/aa915647.aspx ).

Well, I will wait for v500 official and maybe suggest an adaptation for WCE or JUST FOR W2000...

Yours sincerely,
Pierre


Le 06/12/2012 20:37, Michal Trojnara a écrit :
On 2012-12-04 13:43, Pierre DELAAGE wrote:

In the past, my offer was to simplify the code for "custom" rewrites of
getaddrinfo/getnameinfo in resolver.c,
by using winsock2 api,
because such calls are available in winsock2, and NOT in winsock1.

You are wrong.  Winsock2 does *not* imply getaddrinfo/getnameinfo.
The original Windows 2000 does have Winsock2, but it doesn't have
getaddrinfo/getnameinfo.  Feel free do check it for yourself if you
don't believe me (or Microsoft docs I sent you).


I will check this in depth after official stunnel v5.00.

Thank you.

Mike




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