limited to select().

done in one single function CURL_CHECK_FUNC_GETNAMEINFO which
will only define HAVE_GETNAMEINFO if the function has been found
AND the type of its arguments has been properly been detected

proper types to use for getnameinfo args

proper types to use for getnameinfo args

target use calling convention WSAAPI for getnameinfo() prototype.
Checking type DWORD as argument 4 and 6 of getnameinfo not needed.

rearrangement in ares_process.c.

interface and the change could break the compilation of thrid
party apps which link against this library.

following order: 'struct sockaddr *' 'const struct sockaddr *' 'void *'.

windows.h winsock.h winsock2.h ws2tcpip.h is done in setup.h

Avoid breaking configure due to CURL_FUNC_GETNAMEINFO_ARGTYPES failure, since at this point nothing depends on it.

justify checking for socklen_t in more than one function, the code
used to find a valid socklen_t replacement is simplified back. The
only function that will be used to find a socklen_t replacement is
getpeername, as it has been since revision 1.4 of curl/acinclude.m4

CURL_FUNC_GETNAMEINFO_ARGTYPES now also checks first argument.
All related changes taken to cares configuration scripts.