New functions CRYPTO_set_idptr_callback(),

CRYPTO_get_idptr_callback(), CRYPTO_thread_idptr() for a 'void *' type
thread ID, since the 'unsigned long' type of the existing thread ID
does not always work well.

crypto/rsa/rsa_lib.c

@@ -408,6 +408,7 @@ BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *in_ctx)
 		goto err;
 		}
 	BN_BLINDING_set_thread_id(ret, CRYPTO_thread_id());
+	BN_BLINDING_set_thread_idptr(ret, CRYPTO_thread_idptr());
 err:
 	BN_CTX_end(ctx);
 	if (in_ctx == NULL)