SSL: fixed possible segfault on renegotiation (ticket #845). Skip SSL_CTX_set_tlsext_servername_callback in case of renegotiation. Do nothing in SNI callback as in this case it will be supplied with request in c->data which isn't expected and doesn't work this way. This was broken by b40af2fd1c16 (1.9.6) with OpenSSL master branch and LibreSSL.

/*
 * 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_ */