diff options
| -rw-r--r-- | contrib/epee/src/wipeable_string.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/contrib/epee/src/wipeable_string.cpp b/contrib/epee/src/wipeable_string.cpp index cc43b8988..6ed4ee8a2 100644 --- a/contrib/epee/src/wipeable_string.cpp +++ b/contrib/epee/src/wipeable_string.cpp @@ -76,7 +76,8 @@ wipeable_string::~wipeable_string() void wipeable_string::wipe() { - memwipe(buffer.data(), buffer.size() * sizeof(char)); + if (!buffer.empty()) + memwipe(buffer.data(), buffer.size() * sizeof(char)); } void wipeable_string::grow(size_t sz, size_t reserved) @@ -93,11 +94,13 @@ void wipeable_string::grow(size_t sz, size_t reserved) size_t old_sz = buffer.size(); std::unique_ptr<char[]> tmp{new char[old_sz]}; memcpy(tmp.get(), buffer.data(), old_sz * sizeof(char)); - memwipe(buffer.data(), old_sz * sizeof(char)); + if (old_sz > 0) + memwipe(buffer.data(), old_sz * sizeof(char)); buffer.reserve(reserved); buffer.resize(sz); memcpy(buffer.data(), tmp.get(), old_sz * sizeof(char)); - memwipe(tmp.get(), old_sz * sizeof(char)); + if (old_sz > 0) + memwipe(tmp.get(), old_sz * sizeof(char)); } void wipeable_string::push_back(char c) |