openssl/crypto/ui/ui_null.c
Richard Levitte 57d0d048a8 Add a null UI method
There are cases when, if you pass a NULL UI_METHOD, the called
function will use an internal default.  This is well and good, but
there may be cases when this is undesirable and one would rather send
in a UI that does absolutely nothing (sort of a /dev/null).  UI_null()
is the UI_METHOD for this purpose.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2744)
2017-02-26 01:00:26 +01:00

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C

/*
* Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include "ui_locl.h"
static const UI_METHOD ui_null = {
"OpenSSL NULL UI",
NULL, /* opener */
NULL, /* writer */
NULL, /* flusher */
NULL, /* reader */
NULL, /* closer */
NULL
};
/* The method with all the built-in thingies */
const UI_METHOD *UI_null(void)
{
return &ui_null;
}