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44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
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/*
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This file is part of TON Blockchain Library.
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TON Blockchain Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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TON Blockchain Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2017-2019 Telegram Systems LLP
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*/
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#include "td/utils/Slice.h"
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#if TD_HAVE_OPENSSL
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#include <openssl/crypto.h>
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#endif
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namespace td {
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void MutableSlice::fill(char c) {
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std::memset(data(), c, size());
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}
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void MutableSlice::fill_zero() {
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fill(0);
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}
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void MutableSlice::fill_zero_secure() {
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#if TD_HAVE_OPENSSL
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OPENSSL_cleanse(begin(), size());
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#else
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volatile char *ptr = begin();
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for (size_t i = 0; i < size(); i++) {
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ptr[i] = 0;
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}
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#endif
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}
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} // namespace td
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