Provide OPENSSL_INIT_NO_ATEXIT noop

The brilliant idea of installing a fragile non-idempotent cleanup atexit
handler as a library has bitten many people over time. This gets particularly
exciting when you can't control who dlopens the lib first (don't we all love
Python bindings) or if you are in a threaded context. Fake OpenSSL clones
chose not to do this but now get to carry a noop flag since people start
opting out of this madness (there's a good old tradition at work here).

ok beck joshua jsing millert miod

diff --git a/lib/libcrypto/crypto.h b/lib/libcrypto/crypto.h
index bcca5a0..33b6fe4 100644 (file)
--- a/lib/libcrypto/crypto.h
+++ b/lib/libcrypto/crypto.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: crypto.h,v 1.75 2024/08/31 12:43:58 jsing Exp $ */
+/* $OpenBSD: crypto.h,v 1.76 2024/10/03 03:47:40 tb Exp $ */
 /* ====================================================================
  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  *
@@ -416,6 +416,7 @@ int CRYPTO_memcmp(const void *a, const void *b, size_t len);
 #define OPENSSL_INIT_reserved_internal         _OPENSSL_INIT_FLAG_NOOP
 #define OPENSSL_INIT_ATFORK                    _OPENSSL_INIT_FLAG_NOOP
 #define OPENSSL_INIT_ENGINE_ALL_BUILTIN                _OPENSSL_INIT_FLAG_NOOP
+#define OPENSSL_INIT_NO_ATEXIT                 _OPENSSL_INIT_FLAG_NOOP
 
 int OPENSSL_init_crypto(uint64_t opts, const void *settings);
 void OPENSSL_cleanup(void);