This commit removes BEOS.
Reviewed-by: NRichard Levitte <levitte@openssl.org>

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

used with no explanation. Some of this was introduced as part of RT#1929. The
value 28 is the length of the IP header (20 bytes) plus the UDP header (8
bytes). However use of this constant is incorrect because there may be
instances where a different value is needed, e.g. an IPv4 header is 20 bytes
but an IPv6 header is 40. Similarly you may not be using UDP (e.g. SCTP).
This commit introduces a new BIO_CTRL that provides the value to be used for
this mtu "overhead". It will be used by subsequent commits.
Reviewed-by: NTim Hudson <tjh@openssl.org>

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

Don't attempt to access msg structure if recvmsg returns an error.

PR#3483
Reviewed-by: NStephen Henson <steve@openssl.org>
Reviewed-by: NTim Hudson <tjh@openssl.org>

Problem with #ifdef in the BIO_CTRL_DGRAM_MTU_DISCOVER case that
is different from the BIO_CTRL_DGRAM_QUERY_MTU one which seems
correct.
Reviewed-by: NMatt Caswell <matt@openssl.org>

Signed-off-by: NKurt Roeckx <kurt@openssl.org>
Reviewed-by: NRich Salz <rsalz@openssl.org>

Signed-off-by: NKurt Roeckx <kurt@openssl.org>
Reviewed-by: NRich Salz <rsalz@openssl.org>

Undo unapproved commit that removed DJGPP and WATT32

DJGPP is no longer a supported platform.  Remove all #ifdef, etc.,
cases that refer to it.  DJGPP also #define'd WATT32, so that
is now removed as well.

Based on an original patch by Neitrino Photonov <neitrinoph@gmail.com>

PR#3439

PR: 3327

Submitted by: Roumen Petrov

Windows 8 SDKs complain that GetVersion() is deprecated.

We only use GetVersion like this:

	(GetVersion() < 0x80000000)

which checks if the Windows version is NT based. Use a macro check_winnt()
which uses GetVersion() on older SDK versions and true otherwise.

Add the extension parser in the s_client, ocsp and x509 apps.

PR: 2809

DTLS/SCTP requires DATA and FORWARD-TSN chunks to be protected with
SCTP-AUTH.  It is checked if this has been activated successfully for
the local and remote peer. Due to a bug, however, the
gauth_number_of_chunks field of the authchunks struct is missing on
FreeBSD, and was therefore not considered in the OpenSSL implementation.
This patch sets the corresponding pointer for the check correctly
whether or not this bug is present.
(cherry picked from commit f596e3c491035fe80db5fc0c3ff6b647662b0003)

Submitted by: Pierre Delaage

contemporary SDK.

PR: 2830
Submitted by: Robin Seggelmann

PR: 2791
Submitted by: Ben Noordhuis

PR: 2790
Submitted by: Alexei Khlebnikov

Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>

Reduce MTU after failed transmissions.

Submitted by: Arpadffy Zoltan <Zoltan.Arpadffy@scientificgames.se>

VMS fixes: disable SCTP by default.

Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve

Add SCTP support for DTLS (RFC 6083).

Submitted by: Adam Langley
Reviewed by: Bodo Moeller

Submitted by: "Mauro H. Leggieri" <mxmauro@caiman.com.ar>
Reviewed by: steve

Stop warnings if OPENSSL_NO_DGRAM is defined.

Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve

Fix DTLS socket error bug

Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve

Fix BIO_accept so it can be bound to IPv4 or IPv6 sockets consistently.

submitted by Steven M. Schweda <sms@antinode.info>

Submitted by: Michael Bergandi <mbergandi@gmail.com>
Reviewed by: steve

Fix typo in crypto/bio/bss_dgram.c

PR: 2382