From 57d0d048a85d641181ac5aec2792109e15630f96 Mon Sep 17 00:00:00 2001 From: Richard Levitte Date: Sun, 26 Feb 2017 00:17:43 +0100 Subject: 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 (Merged from https://github.com/openssl/openssl/pull/2744) --- crypto/ui/build.info | 2 +- crypto/ui/ui_null.c | 26 ++++++++++++++++++++++++++ 2 files changed, 27 insertions(+), 1 deletion(-) create mode 100644 crypto/ui/ui_null.c (limited to 'crypto/ui') diff --git a/crypto/ui/build.info b/crypto/ui/build.info index fcb45af7eb..c5d17fb744 100644 --- a/crypto/ui/build.info +++ b/crypto/ui/build.info @@ -1,3 +1,3 @@ LIBS=../../libcrypto SOURCE[../../libcrypto]=\ - ui_err.c ui_lib.c ui_openssl.c ui_util.c + ui_err.c ui_lib.c ui_openssl.c ui_null.c ui_util.c diff --git a/crypto/ui/ui_null.c b/crypto/ui/ui_null.c new file mode 100644 index 0000000000..9e5f6fca59 --- /dev/null +++ b/crypto/ui/ui_null.c @@ -0,0 +1,26 @@ +/* + * 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; +} -- cgit v1.2.3