PR: 2382

e_os2.h, this should fix WIN32 compilation issues and hopefully avoid
conflicts with other headers which may workaround ssize_t in different ways.

Remove useless num = 0 assignment.

Remove redundant cases on sock_ctrl(): default case handles them.

connect() are as finicky as sendto() when it comes to socket address
length. As it turned out they are, therefore the fix. Note that you
can't reproduce the problem on Linux, it was failing on Solaris,
FreeBSD, most likely on more...

PR: 2114
Submitted by: Robin Seggelmann

not to mention that first sockaddr_storage had __ss_family, not ss_family.
In other words it makes more sense to avoid sockaddr_storage...

PR: 2130
Submitted by: Eugeny Gostyukhin

PR: 2110

from b_sock.c, don't assume that caller always passes pointer to buffer
large enough to hold sockaddr_storage.
PR: 2069

Submitted by: Michael Tuexen <tuexen@fh-muenster.de>
Approved by: steve@openssl.org

IPv6 support for DTLS.

Submitted by: Michael Tuexen <tuexen@fh-muenster.de>
Approved by: steve@openssl.org

Fix handling of ENOTCONN and EMSGSIZE for dgram BIOs.

Submitted by: David Lee <live4thee@gmail.com>, steve@openssl.org
Approved by: steve@openssl.org

Fix for IPv6 handling in BIO_get_accept_socket().

Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

Fix DTLS cookie management bugs.

Submitted by: steve@openssl.org

Some systems have broken IPv6 headers and/or implementations. If
OPENSSL_USE_IPV6 is set to 0 IPv6 is not used, if it is set to 1 it is used
and if undefined an attempt is made to detect at compile time by checking
if AF_INET6 is set and excluding known problem platforms.

Update from 0.9.8-stable

Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

DTLS MTU bug.

make sure that BOTH instances of said code get the VMS modification.

Reason: gettimeofday() is deprecated.