Initial upload of HyprArch releng configuration

airootfs/usr/include/libcalamares/utils/Entropy.h

@@ -0,0 +1,46 @@
+/* === This file is part of Calamares - <https://calamares.io> ===
+ *
+ *   SPDX-FileCopyrightText: 2019-2020 Adriaan de Groot <groot@kde.org>
+ *   SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ *
+ *   Calamares is Free Software: see the License-Identifier above.
+ *
+ *
+ */
+
+#ifndef UTILS_ENTROPY_H
+#define UTILS_ENTROPY_H
+
+#include "DllMacro.h"
+
+#include <QByteArray>
+
+namespace Calamares
+{
+/// @brief Which entropy source was actually used for the entropy.
+enum class EntropySource
+{
+    None,  ///< Buffer is empty, no random data
+    URandom,  ///< Read from /dev/urandom
+    Twister  ///< Generated by pseudo-random
+};
+
+/** @brief Fill buffer @p b with exactly @p size random bytes
+ *
+ * The array is cleared and resized, then filled with 0xcb
+ * "just in case", after which it is filled with random
+ * bytes from a suitable source. Returns which source was used.
+ */
+DLLEXPORT EntropySource getEntropy( int size, QByteArray& b );
+
+/** @brief Fill string @p s with exactly @p size random printable ASCII characters
+ *
+ * The characters are picked from a set of 64 (2^6). The string
+ * contains 6 * size bits of entropy. * Returns which source was used.
+ * @see getEntropy
+ */
+DLLEXPORT EntropySource getPrintableEntropy( int size, QString& s );
+}  // namespace Calamares
+
+#endif