Potential buffer overflow, use snprintf instead

src/overlay.cpp

@@ -1205,17 +1205,17 @@ void render_benchmark(swapchain_stats& data, struct overlay_params& params, ImVe
       }
    }
    ImGui::Begin("Benchmark", &open, ImGuiWindowFlags_NoDecoration);
-   string finished = "Logging Finished";
-   ImGui::SetCursorPosX((ImGui::GetWindowSize().x / 2 )- (ImGui::CalcTextSize(finished.c_str()).x / 2));
-   ImGui::TextColored(ImVec4(1.0, 1.0, 1.0, alpha / params.background_alpha), finished.c_str());
+   static const char* finished = "Logging Finished";
+   ImGui::SetCursorPosX((ImGui::GetWindowSize().x / 2 )- (ImGui::CalcTextSize(finished).x / 2));
+   ImGui::TextColored(ImVec4(1.0, 1.0, 1.0, alpha / params.background_alpha), finished);
    ImGui::Dummy(ImVec2(0.0f, 8.0f));
    char duration[20];
-   sprintf(duration, "Duration: %.1fs", float(log_end - log_start) / 1000000);
+   snprintf(duration, sizeof(duration), "Duration: %.1fs", float(log_end - log_start) / 1000000);
    ImGui::SetCursorPosX((ImGui::GetWindowSize().x / 2 )- (ImGui::CalcTextSize(duration).x / 2));
    ImGui::TextColored(ImVec4(1.0, 1.0, 1.0, alpha / params.background_alpha), duration);
    for (auto& data_ : benchmark_data){
       char buffer[20];
-      sprintf(buffer, "%s %.1f", data_.first.c_str(), data_.second);
+      snprintf(buffer, sizeof(buffer), "%s %.1f", data_.first.c_str(), data_.second);
       ImGui::SetCursorPosX((ImGui::GetWindowSize().x / 2 )- (ImGui::CalcTextSize(buffer).x / 2));
       ImGui::TextColored(ImVec4(1.0, 1.0, 1.0, alpha / params.background_alpha), "%s %.1f", data_.first.c_str(), data_.second);
    }