using getenv with respect to security <p>If I use <code>getenv()</code> to disable some verifications of my program (for instance license checking) will a hacker be able to discover easily the concerned environment variable (using strace or other ?)</p> <p>Exemple of code:</p> <pre><code>if (! getenv("my_secret_env_variable")) checkLicense(); </code></pre> <p>(If, on the other hand, I checked the presence of a specific file, the hacker would see it immediately with strace)</p>