In OOM situation. Follow-up fix to commit a9cd4f4e.

Bug: http://curl.haxx.se/mail/lib-2011-01/0079.html
Reported by: Quinn Slack

Only under Windows

The just added speedcheck must not ruin the error code if already set
due to a problem.

Check for speedcheck limits during the state machine traversals

As the function doesn't really use the connectdata struct but only the
SessionHanadle struct I modified what argument it wants.

Bug: https://bugzilla.redhat.com/623663

512 bytes turned out too short for some data, so now we allocate a
larger buffer instead

Bug: http://curl.haxx.se/mail/archive-2011-01/0002.html

When configure --enable-debug has been used, all files in lib/ are now
built twice and a separate static library crafted for unit-testing will
be linked. The unit tests in the tests/unit subdir will use that
library.

We cannot assume that PATH_MAX will be enough for the remote path name
so allocating room for it is the only sensible approach.

Since some systems don't have PATH_MAX and it isn't that clever to
assume a fixed maximum path length, the code now allocates buffer space
instead of using stack.

Reported by: Samuel Thibault
Bug: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=608521

Sending "pwd" as a QUOTE command only sent the reply to the
DEBUGFUNCTION. Now it also sends an FTP-like header to the header
callback to allow similar operations as with FTP, and apps can re-use
the same parser.

The loop condition was wrong so keys larger than 340 bits would overflow
the local stack-based buffer.

The functionality is provided in a new source file: lib/idn_win32.c

When built IPv6-enabled, we could do Curl_done() with one of the two
resolves having returned already, so when ares_cancel() is called the
resolve callback ends up doing funny things (sometimes resulting in a
segfault) since it would try to actually store the previous resolve even
though we're shutting down the resolve.

This bug was introduced in commit 8ab137b2 so it hasn't been
included in any public release.

Bug: http://curl.haxx.se/bug/view.cgi?id=3145445
Reported by: Pedro Larroy

Providing multiple dots in a series in the domain field (domain=..com) could
trick the cookie engine to wrongly accept the cookie believing it to be
fine. Since the tailmatching would then match all .com sites, the cookie would
then be sent to all of them.

The code now requires at least one letter between each dot for them to be
counted. Edited test case 61 to verify this.

When using the multi interface and connecting to a host name that
resolves to multiple IP addresses, there was no logic that made it
continue to the next IP if connecting to the first address times
out. This is now corrected.

RAND_screen() is slow, not thread-safe and not needed anymore since OpenSSL
uses the thread-safe win32 CryptoAPI nowadays.

The info about pipe status and expire cleared are clearly debug-related
and not anything mere mortals will or should care about so they are now
ifdef'ed DEBUGBUILD

Similar to what is done already for RCPT TO, the code now checks for and
adds angle brackets (<>) around the email address that is provided for
CURLOPT_MAIL_RCPT unless the app has done so itself.

sorted to reflect same internal order as the one shown
in the usage message.

Make sure that Curl_cache_addr() errors are propagated to callers of
loadhostpairs().

(this loadhostpairs function caused a scan-build warning due to the
'dns' variable getting assigned but never used)

Default libcurl's file names are kept equal to those used since Y2K.

Doing curlx_strtoofft() on the size just to figure out the end of it
causes a compiler warning since the result wasn't used, but is also a
bit of a waste.

Since the original `conn' pointer was used after the `connectdata' it
points to has been closed/cleaned up by Curl_reconnect_request it caused
a crash. We must make sure to use the newly created connection instead!

URL: http://curl.haxx.se/mail/lib-2010-12/0202.html

Make the c-ares resolver code ask for both IPv4 and IPv6 addresses when
IPv6 is enabled.

This is a workaround for the missing ares_getaddrinfo() and is a lot
easier to implement.

Note that as long as c-ares returns IPv4 addresses when IPv6 addresses
were requested but missing, this will cause a host's IPv4 addresses to
occur twice in the DNS cache.

URL: http://curl.haxx.se/mail/lib-2010-12/0041.html

The SSL_SERVER_VERIFY_LATER bit in the ssl_ctx_new() call allows the
code to verify the peer certificate explicitly after the handshake and
then the "data->set.ssl.verifypeer" option works.

When no explicit version is selected we should try to use whatever is
best for us, and in the axTLS case that means TLSv1.

Removed trailing whitespace
Removed several compiler warnings
Removed odd backslashes at some line endings

The public axTLS header (at least as of 1.2.7) redefines the memory
functions. We #undef those again immediately after the public header to
limit the damage. This should be fixed in axTLS.

Failed HTTPS tests: 301, 306, 311, 312, 313, 560
311, 312 need more detailed error reporting from axTLS.
313 relates to CRL, which hasn't been implemented yet.

Added axTLS to autotool files and glue code to misc other files.
axtls.h maps SSL API functions, but may change.
axtls.c is just a stub file and will definitely change.

The function that checks if pipelining is possible now requires the HTTP
bit to be set so that it doesn't mistakenly tries to do it for other
protocols.

Bug: http://curl.haxx.se/mail/lib-2010-12/0152.html
Reported by: Dmitri Shubin

The generic timeout code must not check easy handles that are already
completed. Going to completed (again) within there risked decreasing the
number of alive handles again and thus it could go negative.

This regression bug was added in 7.21.2 in commit ca10e28f