SSL: logging levels of "unsupported protocol", "version too low". Starting with OpenSSL 1.1.0, SSL_R_UNSUPPORTED_PROTOCOL instead of SSL_R_UNKNOWN_PROTOCOL is reported when a protocol is disabled via an SSL_OP_NO_* option. Additionally, SSL_R_VERSION_TOO_LOW is reported when using MinProtocol or when seclevel checks (as set by @SECLEVEL=n in the cipher string) rejects a protocol, and this is what happens with SSLv3 and @SECLEVEL=1, which is the default. There is also the SSL_R_VERSION_TOO_HIGH error code, but it looks like it is not possible to trigger it.

/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGINX_H_INCLUDED_
#define _NGINX_H_INCLUDED_


#define nginx_version      1014002
#define NGINX_VERSION      "1.14.2"
#define NGINX_VER          "nginx/" NGINX_VERSION

#ifdef NGX_BUILD
#define NGINX_VER_BUILD    NGINX_VER " (" NGX_BUILD ")"
#else
#define NGINX_VER_BUILD    NGINX_VER
#endif

#define NGINX_VAR          "NGINX"
#define NGX_OLDPID_EXT     ".oldbin"


#endif /* _NGINX_H_INCLUDED_ */