conversion from 'curl_off_t' to 'size_t', possible loss of data

Where curl_off_t is a 64-bit word and size_t is 32-bit - for example
with 32-bit Windows builds.

In the rare instance where getparameter() may return PARAM_NO_MEM whilst
parsing a URL, cURL would return this error code, which is equivalent to
CURLE_FTP_ACCEPT_FAILED in cURL error codes terms.

Instead, return CURLE_FAILED_INIT and output the failure reason as per
the other usage of getparameter().

Increasing the update frequency of the progress bar to 10Hz greatly
improves the visual appearance of the progress bar (at least in my
impression).

Signed-off-by: Tobias Markus <tobias@markus-regensburg.de>

Currently, the progress bar is updated at 5Hz. Because it is often not
updated to 100% when the download is finished and curl exits, the bar
is often "stuck" at 90-something, thus irritating the user.

This patch fixes this by always updating the progress bar (instead of
waiting for 200ms to have elapsed) while the download is finished but
curl has not yet exited. This should not greatly affect performance
because that moment is rather short.

Signed-off-by: Tobias Markus <tobias@markus-regensburg.de>

A follow up patch to commit d2671340 as _WIN32_WINNT_WIN2K and
_WIN32_WINNT_WIN2K may not be defined on all systems.

Following some auto build failures after commit c7a76bb0 changed
the preprocessor check to use _WIN32_WINNT.

1 - allow >31 bit max-age values

2 - don't overflow on extremely large max-age values when we add the
value to the current time

3 - make sure max-age takes precedence over expires as dictated by
RFC6265

Bug: http://curl.haxx.se/mail/lib-2014-01/0130.html
Reported-by: Chen Prog

As was introduced in 8f6b4be8af04

Allow for chunked-encoding data to get parsed with only LF line endings.
This is allowed by browsers.

Also, make the ftp server return a canned response that doesn't
cause XML verification problems.  Although the test file format
isn't technically XML, it's still handy to be able to use XML
tools to verify and manipulate them.

The issue is with HP-UX that is comes with HP flavor of MIT
Kerberos. This means that there is no krb5-config and the lib is called
libgss.so

Bug: http://curl.haxx.se/bug/view.cgi?id=1321

The now argument is unused by curl_getdate()

Starting with Visual Studio 2013 (VC12) and Windows 8.1 the
GetVersionInfoEx() function has been marked as deprecated and it's
return value atered. Updated connect.c and curl_sspi.c to use
VerifyVersionInfo() where possible, which has been available since
Windows 2000.

Since /dev/stdout is not always emulated on Windows,
just skip the output option on Windows.

MinGW/msys support /dev/stdout only from a new login shell.

A transfer timeout could result in an error message such as "Operation
timed out after 3000 milliseconds with 19 bytes of -1 received".  This
patch removes the non-sensical "of -1" when the size of the transfer
is unknown, mirroring the logic in lib/transfer.c

tstunnel on Windows does not support the pid option and is unable
to write to an output log that is already being used as a redirection
target for stdout. Therefore it does now output all log data to stdout
by default and secureserver.pl creates a fake pidfile on Windows.

error: 'MULTI_PERFORM_HANG_TIMEOUT' undeclared

Simplified the SMTP multi example as this example should demonstrate
the differences the easy and multi interfaces rather than introduce new
concepts such as user authentication and TLS which are shown in the TLS
and SSL examples.

Updated to read data from a callback rather than from stdio as this is
more realistic to most use cases.

By default even recent versions of OpenSSL support and accept both
"export strength" ciphers, small-bitsize ciphers as well as downright
deprecated ones.

This change sets a default cipher set that avoids the worst ciphers, and
subsequently makes https://www.howsmyssl.com/a/check no longer grade
curl/OpenSSL connects as 'Bad'.

Bug: http://curl.haxx.se/bug/view.cgi?id=1323
Reported-by: Jeff Hodges

With the recently added timeout "reminder" functionality, there's no
reason left for us to execute timeout code before the time is
ripe. Simplifies the handling too.

This will make the *TIMEOUT and *CONNECTTIMEOUT options more accurate
again, which probably is most important when the *_MS versions are used.

In multi_socket, make sure to update 'now' after having handled activity
on a socket.

Currently VC7 and VC7.1 builds have to be ran with the VC variable set
to vc6 which is not only inconsistent with the nmake winbuild system
but also with newer versions of Visual Studio supported by this file.

Note: This doesn't break the build for anyone still running with the
VC variable set to vc6 or not set (which defaults to vc6).