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.

password of 127 bytes or less embedded in a URL, where actually the code
uses a 255 byte buffer for it! Modified now to use the full buffer size.