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Seal clipboard buffers after copying data into them.

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This is just a quick safety mechanism to ensure that nobody alters the
contents of a clipping after it's been set.

Ultimately this will be replaced by a more sophisticated SHM object.
This commit is contained in:
Andreas Kling 2019-03-08 13:33:35 +01:00
parent 6820f9e14f
commit b8581b0069
2 changed files with 2 additions and 0 deletions
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1
LibGUI/GClipboard.cpp
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@ -44,6 +44,7 @@ void GClipboard::set_data(const String& data)
return;
}
memcpy(shared_buffer->data(), data.characters(), data.length() + 1);
shared_buffer->seal();
request.clipboard.shared_buffer_id = shared_buffer->shared_buffer_id();
request.clipboard.contents_size = data.length();
auto response = GEventLoop::main().sync_request(request, WSAPI_ServerMessage::Type::DidSetClipboardContents);

1
WindowServer/WSClientConnection.cpp
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@ -336,6 +336,7 @@ void WSClientConnection::handle_request(WSAPIGetClipboardContentsRequest&)
RetainPtr<SharedBuffer> shared_buffer = SharedBuffer::create(m_pid, WSClipboard::the().size());
ASSERT(shared_buffer);
memcpy(shared_buffer->data(), WSClipboard::the().data(), WSClipboard::the().size());
shared_buffer->seal();
response.clipboard.shared_buffer_id = shared_buffer->shared_buffer_id();
response.clipboard.contents_size = WSClipboard::the().size();