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

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

Add digest combining MD5 and SHA1. This is used by RSA signatures for
TLS 1.1 and earlier.

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

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

Thanks to Guido Vranken <guidovranken@gmail.com> for reporting this issue.

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

perlrun(1) leads the way.

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

Encourages GitHub to perform proper syntax highlighting.

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

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>

And a scalar !x --> x==0 test
Reviewed-by: Kurt Roeckx <kurt@openssl.org>

This patch contains the necessary changes to provide GOST 2012
ciphersuites in TLS. It requires the use of an external GOST 2012 engine.

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

RT#4142

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

RT#4138

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

RT #4144

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

During rebasing of the async changes some error codes ended up being
duplicated so that "make errors" fails. This removes the duplication.

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

In the async code for MacOS/X define _XOPEN_SOURCE (if not already
defined) as early as possible.  We must do this before including
any header files, because on MacOS/X <stlib.h> includes <signal.h>
which includes <ucontext.h>.  If we delay defining _XOPEN_SOURCE
and include <ucontext.h> after various system headers are included,
we are very likely to end up with the wrong (truncated) definition
of ucontext_t.

Also, better error handling and some code cleanup in POSIX fibre
construction and destruction.  We make sure that async_fibre_makecontext()
always initializes the fibre to a state that can be freed.

For all implementations, check for error returns from
async_fibre_makecontext().

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

Strict ISO confirming C compilers only define __sun

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

RT #4144, MR #1353

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

MR #1350

Original patch by Frank Morgner.

Signed-off-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@akamai.com>

GH: #456

For all functions, consistently use asdf() not B<asdf()>

Reviewed-by: Kurt Roeckx <kurt@openssl.org>

Signed-off-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@akamai.com>

GH: #458

Signed-off-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@akamai.com>

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

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

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

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

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

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

Though the callers check the function return value and ignore the
size_t output argument on failure, it is still often not ideal to
store (-1) in size_t on error.  That might signal an unduly large
buffer.  Instead set the size_t to 0, to indicate no space.

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

Implements Thread Local Storage in the windows async port. This also has
some knock on effects to the posix and null implementations.

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

In theory the pthreads approach for Thread Local Storage should be more
portable.

This also changes some APIs in order to accommodate this change. In
particular ASYNC_init_pool is renamed ASYNC_init_thread and
ASYNC_free_pool is renamed ASYNC_cleanup_thread. Also introduced ASYNC_init
and ASYNC_cleanup.

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

A lot of the pool handling code was in the arch specific files, but was
actually boiler plate and the same across the implementations. This commit
moves as much code as possible out of the arch specific files.

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

We were using _pipe to create a pipe on windows. This uses the "int" type
for its file descriptor for compatibility. However most windows functions
expect to use a "HANDLE". Probably we could get away with just casting but
it seems more robust to use the proper type and main stream windows
functions.

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

There were a number of places where the async code did not conform to the
OpenSSL coding style.

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

The rand code can aquire locks and then attempt crypto operations. This
can end up in a deadlock if we are using an async engine, because control
returns back to the user code whilst still holding the lock. We need to
force synchronous operation for these sections of code.

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

There are potential deadlock situations that can occur if code executing
within the context of a job aquires a lock, and then pauses the job. This
adds an ability to temporarily block pauses from occuring whilst performing
work and holding a lock.

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

During development some functions got added and then later taken away.
Since these will never appear in a production version there is no reason
for them to appear in libeay.num flagged as "NOEXIST".

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

Even with _XOPEN_SOURCE defined OS-X still displays warnings that
makecontext and friends are deprecated. This isn't a problem until you
try and build with --strict-warnings, and the build fails. This change
suppresses the warnings. We know they are deprecated but there is no
alternative!

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

async_fibre_makecontext was initialise the fibre first and then calling
getcontext(). It should be the other way around because the getcontext
call may overwrite some of the things we just initialised. This didn't
cause an issue on Linux and so the problem went unnoticed. On OS-X it
causes a crash.

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

Make it clear that this function is ssl specific.

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

For some reason the dasync sha1 functions did not start with the
dasync prefix like all of the other functions do. Changed for
consistency.

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