SO_BINDTODEVICE is present, to prevent compiler warnings about the variable

Removed some dates/names in the comments.

Curl_write in CURLcode, to keep the picky compilers happy

more" when the previous approach. Known to work on Linux, possibly on other
platforms as well.

sure this doesn't get weird on 64bit archs.

archs, also no longer typecast pointers to ints as that is a nono on 64bit
systems.

with anyway and thus caused picky compiler to warn.

getaddrinfo() implementation.

following a location. After discussions with Tim Baker.

we avoid it where possible.

The standards don't actually allow typecasts between data and functions so
some picky compilers warn about this.

chunky coding of uploads

picky compiler warnings

PORT
Provide better error messages to allow debugging if one if the ipv6-related
name functions fail in the ftp_use_port() function. This might help us
diagnose the problems on AIX. Also make sure getaddrinfo() uses NULL and
not "0" for the service argument.

response reading function

NOTE that this breaks ares-compatibility, we have now officially taken the
turn into the c-ares path. We will now officially depend on c-ares for asynch
name resolves.

as well, and when failing and not getting a timeout we now include the
error message ares can provide us with.

this allows the HTTP code to *not* return a failure just because no data
has been received from the server