(http://curl.haxx.se/bug/view.cgi?id=1481217), with follow-ups by Michele Bini
and David Byron. libcurl previously wrongly used GetLastError() on windows to
get error details after socket-related function calls, when it really should
use WSAGetLastError() instead.

When changing to this, the former function Curl_ourerrno() is now instead
called Curl_sockerrno() as it is necessary to only use it to get errno from
socket-related functions as otherwise it won't work as intended on Windows.

file descriptor if given a non-existing file.

week day names and month names and servers don't like that.

The tag 'before_ftp_statemachine' was set just before this commit in case
of future need.

of struct_stat in formdata.c as well, to support formpost uploads of large
files on Windows too

by me.

not the former one

files.

converted and thus we must search for backslash on windows

precaution to prevent mistakes to lead to buffer overflows.

path after a transfer.

memory.h is included everywhere for this.

with Digest or NTLM. libcurl will now use HEAD to negotiate the authentication
and when done perform the requested POST.

argument passing and try to convert to double only when providing data to the
external world.

file: transfers too

by Jesse Noller

the plain old FILE typedef.

FORMAT_OFF_T to allow additional options to get specified, like with '"%5"
FORMAT_OFF_T'.

having to redef that name

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

warnings. Minor edits by me.