Re: WSAPoll() needs Vista

[Gisle Vanem <gvanem () broadpark no>]

"Henri Doreau" <henri.doreau () gmail com> wrote:

> Is this check the standard way to do it on windows? It seems a bit cryptic
> to me and a quick search doesn't show anything similar in the nmap code. Is
> there a way for our compile chain on windows to dynamically define
> HAVE_POLL, depending on the availability of the WSAPoll() function? 

Regrettably not. No auto*tools for MSVC builds. But we could load
"ws2_32.dll" and figure out if it has WSAPo() at runtime (using  GetProcAddress).
That is what libdnet-stripped/src/route-win32.c does for "GetIpForwardTable2".
Although it should that for "FreeMibTable" too. Hint, hint.

> In other words, an actual function test (as done by configure on *nix systems)
> instead of an OS version number check?

The configure way disregard the possibly that a nmap.exe built on 
machine-X would work on a (non-configure) machine-Y. We use
Nsis to distribute nmap and chums, so we better make sure the
programs work on most Windows machines.

--gv
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