Line data    Source code

       1             : /*
       2             :  *  Copyright (C) 2004-2024 Savoir-faire Linux Inc.
       3             :  *
       4             :  *  This program is free software: you can redistribute it and/or modify
       5             :  *  it under the terms of the GNU General Public License as published by
       6             :  *  the Free Software Foundation, either version 3 of the License, or
       7             :  *  (at your option) any later version.
       8             :  *
       9             :  *  This program is distributed in the hope that it will be useful,
      10             :  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
      11             :  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
      12             :  *  GNU General Public License for more details.
      13             :  *
      14             :  *  You should have received a copy of the GNU General Public License
      15             :  *  along with this program. If not, see <https://www.gnu.org/licenses/>.
      16             :  */
      17             : 
      18             : #include "memory.h"
      19             : 
      20             : #ifdef _WIN32
      21             : #include <windows.h>
      22             : #include <wincrypt.h>
      23             : #endif
      24             : 
      25             : #include <algorithm>
      26             : 
      27             : namespace jami {
      28             : namespace secure {
      29             : 
      30             : void
      31       14582 : memzero(void* ptr, std::size_t length)
      32             : {
      33             : #ifdef _WIN32
      34             :     SecureZeroMemory(ptr, length);
      35             : #else
      36       14582 :     volatile auto* p = static_cast<unsigned char*>(ptr);
      37       14582 :     std::fill_n(p, length, 0);
      38             : #endif
      39       14582 : }
      40             : 
      41             : } // namespace secure
      42             : } // namespace jami
      43             : 
      44             : extern "C" void
      45       14582 : ring_secure_memzero(void* ptr, size_t length)
      46             : {
      47       14582 :     jami::secure::memzero(ptr, length);
      48       14582 : }