Modify configure.ac to test for new CyaSSL Init function and remove
default install path to system.  Change to CyaSSL OpenSSL header and
proper Init in code as well.

Note that this no longer detects or works with CyaSSL before v2

We will go straight to 7.25.0 due to the new additions

This new option tells curl to not work around a security flaw in the
SSL3 and TLS1.0 protocols. It uses the new libcurl option
CURLOPT_SSL_OPTIONS with the CURLSSLOPT_ALLOW_BEAST bit set.

Allow an appliction to set libcurl specific SSL options. The first and
only options supported right now is CURLSSLOPT_ALLOW_BEAST.

It will make libcurl to disable any work-arounds the underlying SSL
library may have to address a known security flaw in the SSL3 and TLS1.0
protocol versions.

This is a reaction to us unconditionally removing that behavior after
this security advisory:

http://curl.haxx.se/docs/adv_20120124B.html

... it did however cause a lot of programs to fail because of old
servers not liking this work-around. Now programs can opt to decrease
the security in order to interoperate with old servers better.

Use the new library CURLOPT_TCP_KEEPALIVE rather than disabling this via
the sockopt callback. If --keepalive-time is used, apply the value to
CURLOPT_TCP_KEEPIDLE and CURLOPT_TCP_KEEPINTVL.

This adds three new options to control the behavior of TCP keepalives:

- CURLOPT_TCP_KEEPALIVE: enable/disable probes
- CURLOPT_TCP_KEEPIDLE: idle time before sending first probe
- CURLOPT_TCP_KEEPINTVL: delay between successive probes

While not all operating systems support the TCP_KEEPIDLE and
TCP_KEEPINTVL knobs, the library will still allow these options to be
set by clients, silently ignoring the values.

As is pointed out in this bug report, there can indeed be situation
where --stderr has a point even when the "real" stderr can be
redirected. Remove the superfluous and wrong comment.

bug: http://curl.haxx.se/bug/view.cgi?id=3476020

http://curl.haxx.se/bug/view.cgi?id=3438362

Just showing how to download the contents of a given URL into a local
file.

Based on a suggestion and example code by Georg Potthast

Just to show that IMAP is used just like other protocols

With this change, curl compiles with the new OPENSSL_NO_SSL_INTERN
cflag. This flag might become the default in some distant future.

These examples show how to fetch a single message (RETR command) and how to
list all the messages in a given mailbox (LIST command), with authentication
via SSL.

They were both based on the https.c example.

The INTERNALS document suggested that compatibility should be
maintained with perl version 4, but this was untrue - scripts such as
chksource.pl and runtests.pl use perl5-isms.

It is no longer done blocking in the multi interface

It did a long time ago

1- Two new error codes are introduced.

CURLE_FTP_ACCEPT_FAILED to be set whenever ACCEPTing fails because of
FTP server connected.

CURLE_FTP_ACCEPT_TIMEOUT to be set whenever ACCEPTing timeouts.

Neither of these errors are considered fatal and control connection
remains OK because it could just be a firewall blocking server to
connect to the client.

2- One new setopt option was introduced.

CURLOPT_ACCEPTTIMEOUT_MS

It sets the maximum amount of time FTP client is going to wait for a
server to connect. Internal default accept timeout is 60 seconds.

Parameters were underquoted, resulting in
warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call detected in body

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

The CURLM_CALL_MULTI_PERFORM reference is an old leftover I had to
remove.

I also added some blurb to the previously blank "sharing" section.

Document the possibility of providing multiple values using the ":"
separator, and the fact that the default value will be ignored if the
option is used.

The default content-type for file uploads is application/octet-stream,
not text/plain as stated in the MANUAL.

Do not try to resolve interfaces names via DNS by recognizing interface
names in a few ways.  If the interface option argument has a prefix of
"if!" then treat the argument as only an interface.  Similarly, if the
interface argument is the name of an interface (even if it does not have
an IP address assigned), treat it as an interface name.  Finally, if the
interface argument is prefixed by "host!" treat it as a hostname that
must be resolved by /etc/hosts or DNS.

These changes allow a client using the multi interfaces to avoid
blocking on name resolution if the interface loses its IP address or
disappears.

This improves portability of the examples.  This patch was
submitted to the OpenBSD ports collection by naddy.

If the option is set to 0, the default timeout will be used - which in
modern libcurl versions equals 300 seconds (== 5 minutes).

Bug: http://curl.haxx.se/mail/lib-2011-12/0051.html
Reported by: Vladimir Grishchenko