Some extension handling functions were passing in a pointer to the start
of the data, plus the length in order to calculate the end, rather than
just passing in the end to start with. This change makes things a little
more readable.

Reviewed-by: Emilia Käsper <emilia@openssl.org>

Conflicts:
	ssl/s3_srvr.c
	ssl/ssl_locl.h
	ssl/t1_lib.c

RT#4069

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

Thanks to David Benjamin <davidben@google.com> for pointing them out.

Reviewed-by: Steve Henson <steve@openssl.org>
MR #1198

(cherry picked from commit 605236f6)

PR#4042

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit d62c64b9)

Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Emilia Käsper <emilia@openssl.org>
(cherry picked from commit 6f997dc3)

the alias supported by OpenSSL 1.0.1 is "EECDH" not "EECDHE"
(GH PR 405)

Signed-off-by: Rich Salz <rsalz@akamai.com>
Reviewed-by: Andy Polyakov <appro@openssl.org>

RFC 5077 section 3.3 says: If the server determines that it does not
want to include a ticket after it has included the SessionTicket
extension in the ServerHello, then it sends a zero-length ticket in the
NewSessionTicket handshake message.

Previously the client would fail upon attempting to allocate a
zero-length buffer. Now, we have the client ignore the empty ticket and
keep the existing session.

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 21b538d6)

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 92ea6fe5)

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

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 1d4ddb4e)

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 58e3457a)
(cherry picked from commit be250ee2)

Fix comment, add another overflow check, tidy style

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit de8883e1)
(cherry picked from commit f5afe9ce)

BUF_strndup was calling strlen through BUF_strlcpy, and ended up reading
past the input if the input was not a C string.

Make it explicitly part of BUF_strndup's contract to never read more
than |siz| input bytes. This augments the standard strndup contract to
be safer.

The commit also adds a check for siz overflow and some brief documentation
for BUF_strndup().

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 110f7b37)
(cherry picked from commit f61216ba)

For all release branches.  It adds travis build support. If you don't
have a config file it uses the default (because we enabled travis for the
project), which uses ruby/rake/rakefiles, and you get confusing "build
still failing" messages.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit db9defdf)

If we use BIO_new_file(), on Windows it'll jump through hoops to work
around their unusual charset/Unicode handling. it'll convert a UTF-8
filename to UCS-16LE and attempt to use _wfopen().

If you use BIO_read_filename(), it doesn't do this. Shouldn't it be
consistent?

It would certainly be nice if SSL_use_certificate_chain_file() worked.

Also made BIO_C_SET_FILENAME work (rsalz)

Signed-off-by: Rich Salz <rsalz@akamai.com>
Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit ff03599a)

There are a couple of minor fixes here:

1) Handle the case when RegisterEventSource() fails (which it may for
various reasons) and do the work of logging the event only if it succeeds.

2) Handle the case when ReportEvent() fails and do our best in debug builds
to at least attempt somehow indicate that something has gone wrong. The
typical situation would be someone running tools like DbMon, DBWin32,
DebugView or just having the debugger attached. The intent is to make sure
that at least some data will be captured so that we can save hours and days
of debugging time.

3) Minor fix to change the MessageBox() flag to MB_ICONERROR. Though the
value of MB_ICONERROR is the same value as MB_ICONSTOP, the intent is
better conveyed by using MB_ICONERROR.

Testing performed:

1) Clean compilation for debug-VC-WIN32 and VC-WIN32.

2) Good test results (nmake -f ms\ntdll.mak test) for debug-VC-WIN32 and
VC-WIN32.

3) Stepped through relevant changes using WinDBG and exercised the impacted
code paths.

Signed-off-by: Rich Salz <rsalz@akamai.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 4cd94416)

There were some memory leaks in the creation of an SRP verifier (both on
successful completion and also on some error paths).

Reviewed-by: Emilia Käsper <emilia@openssl.org>
(cherry picked from commit bf95cde2)

PR#3817

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 4e7e6230)

Conflicts:
	apps/s_server.c

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit f1c412c9)

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 4fe1cbdf)

Was only approved for master, to avoid compatibility issues on
previous releases.

Reviewed-by: Emilia Käsper <emilia@openssl.org>
(cherry picked from commit 6be18a22)

In master we have the function OPENSSL_clear_free(x,y), which immediately
returns if x == NULL. In <=1.0.2 this function does not exist so we have to
do:
OPENSSL_cleanse(x, y);
OPENSSL_free(x);

However, previously, OPENSSL_cleanse did not check that if x == NULL, so
the real equivalent check would have to be:
if (x != NULL)
    OPENSSL_cleanse(x, y);
OPENSSL_free(x);

It would be easy to get this wrong during cherry-picking to other branches
and therefore, for safety, it is best to just ensure OPENSSL_cleanse also
checks for NULL.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 020d8fc8)

Previously, the conversion would silently coerce to ASCII. Now, we error
out.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit b785504a)
(cherry picked from commit cb71f17d)

Rewrite EVP_DecodeUpdate.

In particular: reject extra trailing padding, and padding in the middle
of the content. Don't limit line length. Add tests.

Previously, the behaviour was ill-defined, and depended on the position
of the padding within the input.

In addition, this appears to fix a possible two-byte oob read.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Dr Stephen Henson <steve@openssl.org>
(cherry picked from commit 3cdd1e94)
(cherry picked from commit 37faf117)

PR#4035

Reviewed-by: Emilia Käsper <emilia@openssl.org>
Reviewed-by: Stephen Henson <steve@openssl.org>
(cherry picked from commit 929f6d6f)

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

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 3be39dc1)

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
MR #1005
(cherry picked from commit a46c9789)

PR#3958

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 2aa5a2c7)

If the field separator isn't specified through -nameopt then use
XN_FLAG_SEP_CPLUS_SPC instead of printing nothing and returing an error.

PR#2397

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 03706afa)

Fix both the caller to error out on malloc failure, as well as the
eventual callee to handle a NULL gracefully.

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

Commit f0348c84

 introduced a problem with session resumption. The
version for the session is fixed when the session is created. By moving
the creation of the session earlier in the process the version is fixed
*before* version negotiation has completed when processing the ServerHello
on the client side. This fix updates the session version after version neg
has completed.

Reviewed-by: Emilia Käsper <emilia@openssl.org>
(cherry picked from commit dc0c8888)

Builds using no-tlsext in 1.0.0 and 0.9.8 are broken. This commit fixes the
issue. The same commit is applied to 1.0.1 and 1.0.2 branches for code
consistency. However this commit will not fix no-tlsext in those branches
which have always been broken for other reasons. The commit is not applied
to master at all, because no-tlsext has been completely removed from that
branch.

Based on a patch by Marc Branchaud <marcnarc@xiplink.com>

Reviewed-by: Emilia Käsper <emilia@openssl.org>
(cherry picked from commit 9a931208)

The |z| value should be 0x04 not 0x02

RT#3838

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

Reviewed-by: Emilia Käsper <emilia@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 91d2728b)

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

The NULL cipher case can't actually happen because we have no
EVP_PBE_CTL combinations where cipher_nid is -1 and keygen is
PKCS12_PBE_keyivgen. But make the code more obviously correct.

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 394f7b6f)

- Pass in the right ciphertext length to ensure we're indeed testing
  ciphertext corruption (and not truncation).
- Only test one mutation per byte to not make the test too slow.
- Add a separate test for truncated ciphertexts.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 25d6b340)

Because we recently encourage people to have a .dir-locals.el, it's a good
idea to ignore it on a git level.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit d7c02691)

Slightly modified from the original PR.
Signed-off-by: Rich Salz <rsalz@akamai.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>

(cherry picked from commit a7e974c7)

Signed-off-by: Rich Salz <rsalz@akamai.com>
Reviewed-by: Emilia Käsper <emilia@openssl.org>
(cherry picked from commit 36ac7bc8)