Bunch of constifications.

Wire DES weak_keys to read-only segment.

OPENSSL_IMPLEMENT_GLOBAL caused more grief than it's worth (it's used twice
in legacy code). I'd rather just remove it along with legacy interface,
but it's probably not as appropriate as I'd

OPENSSL_IMPLEMENT_GLOBAL caused more grief than it's worth (it's used twice
in legacy code). I'd rather just remove it along with legacy interface,
but it's probably not as appropriate as I'd like. Reimplement the macro.

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A general spring-cleaning (in autumn) to fix up signed/unsigned warnings.
I have tried to convert 'len' type variable declarations to unsigned as a
means to address these warnings when approp

A general spring-cleaning (in autumn) to fix up signed/unsigned warnings.
I have tried to convert 'len' type variable declarations to unsigned as a
means to address these warnings when appropriate, but when in doubt I have
used casts in the comparisons instead. The better solution (that would get
us all lynched by API users) would be to go through and convert all the
function prototypes and structure definitions to use unsigned variables
except when signed is necessary. The proliferation of (signed) "int" for
strictly non-negative uses is unfortunate.

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Certain flag macros were tested with #if instead if #ifdef...

Due to an increasing number of clashes between modern OpenSSL and
libdes (which is still used out there) or other des implementations,
the OpenSSL DES functions are renamed to begin with DES_

Due to an increasing number of clashes between modern OpenSSL and
libdes (which is still used out there) or other des implementations,
the OpenSSL DES functions are renamed to begin with DES_ instead of
des_. Compatibility routines are provided and declared by including
openssl/des_old.h. Those declarations are the same as were in des.h
when the OpenSSL project started, which is exactly how libdes looked
at that time, and hopefully still looks today.

The compatibility functions will be removed in some future release, at
the latest in version 1.0.

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Make EVPs allocate context memory, thus making them extensible. Rationalise
DES's keyschedules.

I know these two should be separate, and I'll back out the DES changes if they
are dee

Make EVPs allocate context memory, thus making them extensible. Rationalise
DES's keyschedules.

I know these two should be separate, and I'll back out the DES changes if they
are deemed to be an error.

Note that there is a memory leak lurking in SSL somewhere in this version.

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Introduce the possibility to access global variables through
functions on platform were that's the best way to handle exporting
global variables in shared libraries. To enable this functiona

Introduce the possibility to access global variables through
functions on platform were that's the best way to handle exporting
global variables in shared libraries. To enable this functionality,
one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
"OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
is normally done by Configure or something similar).

To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
in the source file (foo.c) like this:

OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
OPENSSL_IMPLEMENT_GLOBAL(double,bar);

To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:

OPENSSL_DECLARE_GLOBAL(int,foo);
#define foo OPENSSL_GLOBAL_REF(foo)
OPENSSL_DECLARE_GLOBAL(double,bar);
#define bar OPENSSL_GLOBAL_REF(bar)

The #defines are very important, and therefore so is including the
header file everywere where the defined globals are used.

The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
of ASN.1 items, but that structure is a bt different.

The largest change is in util/mkdef.pl which has been enhanced with
better and easier to understand logic to choose which symbols should
go into the Windows .def files as well as a number of fixes and code
cleanup (among others, algorithm keywords are now sorted
lexicographically to avoid constant rewrites).

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Can't remember why this was needed?

Integrate podd.h sk.h into set_key.c

cleanup.

Use L for all constants.

ispell (and minor modifications)

Add functions des_set_key_checked, des_set_key_unchecked.
Never use des_set_key (it depends on the global variable des_check_key),
but usually des_set_key_unchecked.
Only destest.c bother

Add functions des_set_key_checked, des_set_key_unchecked.
Never use des_set_key (it depends on the global variable des_check_key),
but usually des_set_key_unchecked.
Only destest.c bothered to look at the return values of des_set_key,
but it did not set des_check_key -- if it had done so,
most checks would have failed because of wrong parity and
because of weak keys.

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avoid cast

Change type of various DES function arguments from des_cblock
(meaning pointer to char) to des_cblock * (meaning pointer to
array with 8 char elements), which allows the compiler to
do mo

Change type of various DES function arguments from des_cblock
(meaning pointer to char) to des_cblock * (meaning pointer to
array with 8 char elements), which allows the compiler to
do more typechecking. (The changed argument types were of type
des_cblock * back in SSLeay, and a lot of ugly casts were
used then to turn them into pointers to elements; but it can be
done without those casts.)

Introduce new type const_des_cblock -- before, the pointers rather
than the elements pointed to were declared const, and for
some reason gcc did not complain about this (but some other
compilers did).

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Use OPENSSL_GLOBAL, OPENSSL_EXTERN instead of GLOBAL and EXTERN.

VMS support.

Submitted by: Richard Levitte <richard@levitte.org>

Remove NOPROTO definitions and error code comments.

Change functions to ANSI C.

Massive constification.

Fix ghastly DES declarations, and all consequential warnings.

Import of old SSLeay release: SSLeay 0.9.1b (unreleased)

Import of old SSLeay release: SSLeay 0.9.0b

Import of old SSLeay release: SSLeay 0.8.1b