There have been a number of complaints from a number of sources that names
like Malloc, Realloc and especially Free conflict with already existing names
on some operating systems or other pac

There have been a number of complaints from a number of sources that names
like Malloc, Realloc and especially Free conflict with already existing names
on some operating systems or other packages. That is reason enough to change
the names of the OpenSSL memory allocation macros to something that has a
better chance of being unique, like prepending them with OPENSSL_.

This change includes all the name changes needed throughout all C files.

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Get rid of more non-ANSI declarations.

Move the registration of callback functions to special functions
designed for that. This removes the potential error to mix data and
function pointers.

Please note that I'm a little

Move the registration of callback functions to special functions
designed for that. This removes the potential error to mix data and
function pointers.

Please note that I'm a little unsure how incorrect calls to the old
ctrl functions should be handled, in som cases. I currently return 0
and that's it, but it may be more correct to generate a genuine error
in those cases.

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Fix for a bug which meant encrypting BIOs sometimes wouldn't read the final
block.

Remove NOPROTO definitions and error code comments.

Change #include filenames from <foo.h> to <openssl.h>.

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Reviewed by:
PR:

Change functions to ANSI C.

Massive constification.

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