load the "external" built-in engines (those that require DSO).  This
makes linking with libdl or other dso libraries non-mandatory.

Change 'openssl engine' accordingly.

Change the engine header files so some declarations (that differed at
that!) aren't duplicated, and make sure engine_int.h includes
engine.h.  That way, there should be no way of missing the needed
info.

implementation is contained in the application, and the capability
string building part should really be part of the engine library.
This is therefore an experimental hack, and will be changed in the
near future.

fopen(NULL).

built using an abstracted state machine with a non-blocking IP wrapper
around it. README will follow in the next commit.

Submitted by Albert Chin-A-Young <china@thewrittenword.com>

Suggested by Albert Chin-A-Young <china@thewrittenword.com>

Submitted by Damien Miller <djm@mindrot.org>
This change has been CC:ed to crypt@bxa.doc.gov

little-endian MIPS.
Submitted by Ralf Baechle <ralf@uni-koblenz.de>

Make flag variables int instead of char.  This avoids getting into trouble on systems where char is unsigned by default

automatically, however some code was still referring to the original
pointer rather than the internal one (and thus to NULL instead of the
created pointer).

applications.

At the same time, add VMS support for Rijndael.

extension .sl instead of .so.

translate library names by only adding ".so" to them without
prepending them with "lib".  Add the flag DSO_FLAG_NAME_TRANSLATION_EXT_ONLY
for that purpose.

appropriate filename translation on the host system. Apart from this point,
users should also note that there's a slight change in the API functions
too. The DSO now contains its own to-be-converted filename
("dso->filename"), and at the time the DSO loads the "dso->loaded_filename"
value is set to the translated form. As such, this also provides an impicit
way of determining if the DSO is currently loaded or not. Except, perhaps,
VMS .... :-)

The various DSO_METHODs have been updated for this mechanism except VMS
which is deliberately broken for now, Richard is going to look at how to
fit it in (the source comments in there explain "the issue").

Basically, the new callback scheme allows the filename conversion to
(a) be turned off altogether through the use of the
    DSO_FLAG_NO_NAME_TRANSLATION flag,
(b) be handled in the default way using the default DSO_METHOD's converter
(c) overriden per-DSO by setting the override callback
(d) a mix of (b) and (c) - eg. implement an override callback that;
    (i) checks if we're win32 "if(strstr(dso->meth->name, "win32"))..."
        and if so, convert "blah" into "blah32.dll" (the default is
	otherwise to make it "blah.dll").
    (ii) default to the normal behaviour - eg. we're not on win32, so
         finish with (return dso->meth->dso_name_converter(dso,NULL)).
(e) be retried a number of times by writing a new DSO_METHOD where the
    "dso_load()" handler will call the converter repeatedly. Then the
    custom converter could use state information in the DSO to suggest
    different conversions or paths each time it is invoked.

Whether Steve is still working on 'proper' verification is up to
him to decide ...

(although maybe this static variable should be abolished totally,
it was introduced before RAND_status existed).