avoid checking preprocessor definition official value

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

Apparently ssl_get_ciphersuite() is needed to get the name of the used
cipher suite.

The value was turned negative when it shouldn't have been

... it is now named havege_random!

Reported by: Robert Schumann
Bug: http://curl.haxx.se/mail/lib-2012-01/0178.html

5 more bug fixes, 1 more contributor

Add simple telnet tests which (ab)use the http server.
The second test checks for an input file handling bug.

Remove wrongly implemented optimisation of telnet upload, apparently
intended to allow the library to avoid manually polling for input.

Fix a bug where input was read from stdin even when a different FILE *
had been configured via CURLOPT_READDATA

bug: http://curl.haxx.se/bug/view.cgi?id=3474308

Leak triggered when CURLOPT_SSLCERTTYPE and CURLOPT_SSLKEYTYPE set to P12
and both CURLOPT_SSLCERT and CURLOPT_SSLKEY point to the same PKCS#12 file.

SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG option enabling allowed successfull
interoperability with web server Netscape Enterprise Server 2.0.1 released
back in 1996 more than 15 years ago.

Due to CVE-2010-4180, option SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG has
become ineffective as of OpenSSL 0.9.8q and 1.0.0c. In order to mitigate
CVE-2010-4180 when using previous OpenSSL versions we no longer enable
this option regardless of OpenSSL version and SSL_OP_ALL definition.

Allows tests from the libtest subdir to generate log traces
similar to those of curl with --tracetime and --trace-ascii
options but with output going to stderr.

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

This newly speced HTTP status code already works as intended in the new
spec:
http://greenbytes.de/tech/webdav/draft-reschke-http-status-308-02.html

Test 1325 is added to verify that the method is kept after the redirect

5 bug fixes, 3 more contributors

Some functions using getaddrinfo and gethostbyname were still
mistakingly being used/linked even if c-ares was selected as resolver
backend.

Reported by: Arthur Murray
Bug: http://curl.haxx.se/mail/lib-2012-01/0160.html

Test 161 updated accordingly

In commit c834213a we re-used some obsolete error codes, and here are
two defines that makes sure existing source codes that happen to use any
of these deprecated ones will still compile.

As usual, define CURL_NO_OLDIES to avoid getting these "precaution
defines".

Previously the code would create a dummy socket while resolving just to
have curl_multi_fdset() return something but the non-win32 version
doesn't do it this way and the creation and use of a socket that isn't
made with the common create-socket callback can be confusing to apps
using the multi_socket API etc.

This change removes the dummy socket and thus will cause
curl_multi_fdset() to return with maxfd == -1 more often.

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