Make SSL_library_init() a wrapper of OPENSSL_init_ssl()

This way it doesn't do nonsensical work for all those who cargo culted an
init sequence. There's no point in having SSL_library_init() as a cheaper
version of OPENSSL_init_ssl(): once you do crypto, you'll init crypto...

Also move the now trivial implementation to ssl_init.c which has a good
license.

ok jsing

Stop calling SSL_library_init() from OPENSSL_init_ssl_internal()

It's pointless: all the ciphers and digests added by SSL_library_init()
are already added by OPENSSL_init_crypto(), which was already called at
that point.

ok jsing

Hide all public symbols in libssl

With the guentherizer 9000

ok tb@

Make internal header file names consistent

Libcrypto currently has a mess of *_lcl.h, *_locl.h, and *_local.h names
used for internal headers. Move all these headers we inherited from
OpenSSL to *_local.h, reserving the name *_internal.h for our own code.
Similarly, move dtls_locl.h and ssl_locl.h to dtls_local and ssl_local.h.
constant_time_locl.h is moved to constant_time.h since it's special.

Adjust all .c files in libcrypto, libssl and regress.

The diff is mechanical with the exception of tls13_quic.c, where
#include <ssl_locl.h> was fixed manually.

discussed with jsing,
no objection bcook

Add missing $OpenBSD$.

Bring in compatibility for OpenSSL 1.1 style init functions.

This adds OPENSSL_init_crypto and OPENSSL_init_ssl, as well
thread safety modifications for the existing LibreSSL init
functions. The initialization routines are called automatically
by the normal entry points into the library, as in newer OpenSSL

ok jsing@, nits by tb@ and deraadt@

Hide all public symbols in libssl

With the guentherizer 9000

ok tb@

Make internal header file names consistent

Libcrypto currently has a mess of *_lcl.h, *_locl.h, and *_local.h names
used for internal headers. Move all these headers we inherited from
OpenSSL to *_local.h, reserving the name *_internal.h for our own code.
Similarly, move dtls_locl.h and ssl_locl.h to dtls_local and ssl_local.h.
constant_time_locl.h is moved to constant_time.h since it's special.

Adjust all .c files in libcrypto, libssl and regress.

The diff is mechanical with the exception of tls13_quic.c, where
#include <ssl_locl.h> was fixed manually.

discussed with jsing,
no objection bcook

Add missing $OpenBSD$.

Bring in compatibility for OpenSSL 1.1 style init functions.

This adds OPENSSL_init_crypto and OPENSSL_init_ssl, as well
thread safety modifications for the existing LibreSSL init
functions. The initialization routines are called automatically
by the normal entry points into the library, as in newer OpenSSL

ok jsing@, nits by tb@ and deraadt@

Make internal header file names consistent

Libcrypto currently has a mess of *_lcl.h, *_locl.h, and *_local.h names
used for internal headers. Move all these headers we inherited from
OpenSSL to *_local.h, reserving the name *_internal.h for our own code.
Similarly, move dtls_locl.h and ssl_locl.h to dtls_local and ssl_local.h.
constant_time_locl.h is moved to constant_time.h since it's special.

Adjust all .c files in libcrypto, libssl and regress.

The diff is mechanical with the exception of tls13_quic.c, where
#include <ssl_locl.h> was fixed manually.

discussed with jsing,
no objection bcook

Add missing $OpenBSD$.

Bring in compatibility for OpenSSL 1.1 style init functions.

This adds OPENSSL_init_crypto and OPENSSL_init_ssl, as well
thread safety modifications for the existing LibreSSL init
functions. The initialization routines are called automatically
by the normal entry points into the library, as in newer OpenSSL

ok jsing@, nits by tb@ and deraadt@

Add missing $OpenBSD$.

Bring in compatibility for OpenSSL 1.1 style init functions.

This adds OPENSSL_init_crypto and OPENSSL_init_ssl, as well
thread safety modifications for the existing LibreSSL init
functions. The initialization routines are called automatically
by the normal entry points into the library, as in newer OpenSSL

ok jsing@, nits by tb@ and deraadt@