SSL: initialization changes for OpenSSL 1.1.0. OPENSSL_config() deprecated in OpenSSL 1.1.0. Additionally, SSL_library_init(), SSL_load_error_strings() and OpenSSL_add_all_algorithms() are no longer available if OPENSSL_API_COMPAT is set to 0x10100000L. The OPENSSL_init_ssl() function is now used instead with appropriate arguments to trigger the same behaviour. The configure test changed to use SSL_CTX_set_options(). Deinitialization now happens automatically in OPENSSL_cleanup() called via atexit(3), so we no longer call EVP_cleanup() and ENGINE_cleanup() directly.

/*
 * Copyright (C) Maxim Dounin
 * Copyright (C) Nginx, Inc.
 */


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


char *
ngx_dlerror(void)
{
    u_char         *p;
    static u_char   errstr[NGX_MAX_ERROR_STR];

    p = ngx_strerror(ngx_errno, errstr, NGX_MAX_ERROR_STR);
    *p = '\0';

    return (char *) errstr;
}