Submitted by: Toomas Kiisk <vix@cyber.ee>

  From: "Chris D. Peterson" <cpeterson@aventail.com>
  Subject: Implementation Issues with OpenSSL
  To: openssl-users@openssl.org
  Date: Wed, 22 Aug 2001 16:13:17 -0700
The patch included in the original post may improve the internal session
list handling (and is therefore worth a seperate investigation).
No change to the list handling will however solve the problems of incorrect
SSL_SESSION_free() calls. The session list is only one possible point of
failure, dangling pointers would also occur for SSL object currently
using the session. The correct solution is to only use SSL_SESSION_free()
when applicable!

such cases, a flush should *not* attempt to finalise the encoding, as
the EVP_ENCODE_CTX structure will only be filled with garbage.  For
the same reason, do the same check when a wpending is performed.

used or not, let's ask collect2 which ld it uses and choose to use the
target do-gnu_shared if GNU ld is used.

This solves the reported problems on Solaris systems where GNU cc is
used but GNU ld isn't, and probably on other systems with similar
setups.

specifically, a starting './' is removed.  makedepend doesn't do this,
resulting in another possible commit war, so let's fix that by doing a
poor mans canonicalisation of file names that gives the same effect as
doing dependencies through gcc.

depend on the environment, like the presence of the OpenBSD crypto
device or of Kerberos, do not change the dependencies within OpenSSL.

however for different reasons. This separation should prevent the win32
build from interpreting evptests.txt as source code.

name. The implementations already use this anyway.

not implemented. (Bug reported by Martin Szotkowski)

This also changes the non-"_ex" versions to defer directly to
EVP_CipherInit_ex() rather than EVP_CipherInit() to avoid an unecessary
level of indirection.

it to be defined on all platforms whether or not it is of any practical
use on them. This also resolves linker problems on "special" platforms,
such as win32.

Martin Szotkowski.

Submitted by Massimo Santin <msantin@santineassociati.com>.

VMS as well :-).

types.h to ossl_typ.h.
Also, it seems like krb5 was forgotten in some places.

types.h to ossl_typ.h.

BIO buffer instead of hard coding it as 8.

*sigh* habit...

Let's use sk_ENGINE_CLEANUP_ITEM_pop_free() instead.

a pointer any more).

the compiler not to warn about that.

needed.

of the stack, and the (void *) type used in the underlying sk_***
functions.  However, declaring a STACK_OF(type) where type is a *function*
type implicitly involves casts between function pointers and data pointers.
That's a no-no. This changes the ENGINE_CLEANUP handling to use a regular
data type in the stack.

a few items however, most of the details are deferred to the
crypto/engine/README file.