If the ASN.1 BIO is presented with a large length field read it in
chunks of increasing size checking for EOF on each read. This prevents
small files allocating excessive amounts of data.

CVE-2016-2109

Thanks to Brian Carpenter for reporting this issue.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>

The reason to warn is that configuration *may* pick up on
configuration header files that are in the source tree, that might be
for a wildly different configuration than what is expected in the
current out-of-source configuration.

Reviewed-by: Matt Caswell <matt@openssl.org>

Reviewed-by: Rich Salz <rsalz@openssl.org>

It is up to the caller of SSL_dane_tlsa_add() to take appropriate
action when no records are added successfully or adding some records
triggers an internal error (negative return value).

With this change the caller can continue with PKIX if desired when
none of the TLSA records are usable, or take some appropriate action
if DANE is required.

Also fixed the internal ssl_dane_dup() function to properly initialize
the TLSA RR stack in the target SSL handle.  Errors in ssl_dane_dup()
are no longer ignored.

Reviewed-by: Rich Salz <rsalz@openssl.org>

If we fail halfway through constructing the peer_tmp EVP_PKEY but we have
already stored it in s->s3->peer_tmp then if anything tries to use it then
it will likely fail. This was causing s_client to core dump in the
sslskewith0p test. s_client was trying to print out the connection
parameters that it had negotiated so far. Arguably s_client should not do
that if the connection has failed...but given it is existing functionality
it's easier to fix libssl.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>

Using ASN1_ITEM tables in d2i_test: this then uses consistent names and
makes it easier to extend.

Add bio, reencode and compare tests.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>

The capi engine was failing to compile on Windows if the no-dsa option
was selected.

Reviewed-by: Richard Levitte <levitte@openssl.org>

The no-dsa option was failing on Windows because some symbols were not
correctly flagged in libcrypto.num. Problem found due to the new symbol
consistency test.

Reviewed-by: Richard Levitte <levitte@openssl.org>

Some pre-processor macros were incorrectly indented

Reviewed-by: Richard Levitte <levitte@openssl.org>

no-cmac was failing on Windows/VMS due to libcrypto.num not marking the
CMAC functions properly. Found due to the new symbol consistency test.

Reviewed-by: Richard Levitte <levitte@openssl.org>

Reviewed-by: Richard Levitte <levitte@openssl.org>

Our main development platforms are of the Unix family, which doesn't
have the same strictness regarding a shared library being consistent
with the contents of the ld script (.map file, on Linux and Solaris)
as Windows is with the contents of the .def file or VMS is with the
linker symb_vector option.

To eliminate surprises, we therefore need to make sure to check that
the contents of the .map file is matched with the shared library, at
least to check that the shared library isn't missing any symbols that
should be present.

This test isn't absolutely perfect, as it will only check the symbols
that would be present on Linux / Solaris and will therefore miss those
that would only appear on Windows or VMS.  On the other hand, those
platform specific are few and far apart in time, so it's not likely
they will pose a problem.

Reviewed-by: Matt Caswell <matt@openssl.org>

If allocation in CRYPTO_clear_realloc() fails don't free up the original
buffer: this is consistent with the behaviour of realloc(3) and is expected
in other places in OpenSSL.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>

Reviewed-by: Tim Hudson <tjh@openssl.org>

The ocsp.h file did not have appropriate guards causing link failures on
Windows.

GH Issue 900

Reviewed-by: Richard Levitte <levitte@openssl.org>

openssl.c and ts.c assign the value of opt_num_rest() to argc, but then
only use the value once.

Reviewed-by: Richard Levitte <levitte@openssl.org>

Reviewed-by: Richard Levitte <levitte@openssl.org>

All other instances of extract_min_max are checked for an error return,
except this one.

Reviewed-by: Richard Levitte <levitte@openssl.org>

Reviewed-by: Richard Levitte <levitte@openssl.org>

Also correct the return value from the the "prime" application

Reviewed-by: Richard Levitte <levitte@openssl.org>

Reviewed-by: Richard Levitte <levitte@openssl.org>

Reviewed-by: Richard Levitte <levitte@openssl.org>

Various instances of variables being written to, but then never read.

Reviewed-by: Richard Levitte <levitte@openssl.org>

The state was always set to BIO_CONN_S_OK.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>

Reviewed-by: Richard Levitte <levitte@openssl.org>

With Richard Levitte.

Reviewed-by: Richard Levitte <levitte@openssl.org>

Reviewed-by: Matt Caswell <matt@openssl.org>

Ensure public functions have appropriate guards in header files.

GH Issue 899

Reviewed-by: Richard Levitte <levitte@openssl.org>

Reviewed-by: Richard Levitte <levitte@openssl.org>

Reviewed-by: Richard Levitte <levitte@openssl.org>

The Unix build was the last to retain the classic build scheme.  The
new unified scheme has matured enough, even though some details may
need polishing.

Reviewed-by: Rich Salz <rsalz@openssl.org>

Link errors were occurring on Windows because the header files were not
correctly guarding some functions with OPENSSL_NO_SOCK

Reviewed-by: Rich Salz <rsalz@openssl.org>

We need the struct timeval definition from winsock2.h even if we're not
going to call any socket functions.

Reviewed-by: Rich Salz <rsalz@openssl.org>

Windows "select" only works for sockets so don't use it to wait for async.

Reviewed-by: Rich Salz <rsalz@openssl.org>

e_os.h was defining OPENSSL_NO_DGRAM if OPENSSL_NO_SOCK was defined.
This causes link problems on Windows because the generated .def files
still contain the DGRAM symbols even though they have not been compiled.

Reviewed-by: Rich Salz <rsalz@openssl.org>

Link errors were occurring on Windows because the header files were not
correctly guarding some functions with OPENSSL_NO_DGRAM

Reviewed-by: Rich Salz <rsalz@openssl.org>

Add copyright to most .pl files
This does NOT cover any .pl file that has other copyright in it.
Most of those are Andy's but some are public domain.
Fix typo's in some existing files.

Reviewed-by: Richard Levitte <levitte@openssl.org>

Fixes some links in the pod files

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>

Reviewed-by: Richard Levitte <levitte@openssl.org>

Reviewed-by: Richard Levitte <levitte@openssl.org>