Core: handle getsockopt(TCP_FASTOPEN) failures. Linux returns EOPNOTSUPP for non-TCP sockets and ENOPROTOOPT for TCP sockets, because getsockopt(TCP_FASTOPEN) is not implemented so far. While there, lower the log level from ALERT to NOTICE to match other getsockopt() failures. Signed-off-by: Piotr Sikora <piotr@cloudflare.com>

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


#ifndef _NGX_CRYPT_H_INCLUDED_
#define _NGX_CRYPT_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>


ngx_int_t ngx_crypt(ngx_pool_t *pool, u_char *key, u_char *salt,
    u_char **encrypted);


#endif /* _NGX_CRYPT_H_INCLUDED_ */