Added DMI reader (Windows only).

src/hw/dmi/DmiTools.cpp

@@ -0,0 +1,75 @@
+/* XMRig
+ * Copyright (c) 2000-2002 Alan Cox     <alan@redhat.com>
+ * Copyright (c) 2005-2020 Jean Delvare <jdelvare@suse.de>
+ * Copyright (c) 2018-2021 SChernykh    <https://github.com/SChernykh>
+ * Copyright (c) 2016-2021 XMRig        <https://github.com/xmrig>, <support@xmrig.com>
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "hw/dmi/DmiTools.h"
+
+
+#include <cstring>
+
+
+namespace xmrig {
+
+
+/* Replace non-ASCII characters with dots */
+static void ascii_filter(char *bp, size_t len)
+{
+    for (size_t i = 0; i < len; i++) {
+        if (bp[i] < 32 || bp[i] >= 127) {
+            bp[i] = '.';
+        }
+    }
+}
+
+
+static char *_dmi_string(dmi_header *dm, uint8_t s, bool filter)
+{
+    char *bp = reinterpret_cast<char *>(dm->data);
+
+    bp += dm->length;
+    while (s > 1 && *bp)  {
+        bp += strlen(bp);
+        bp++;
+        s--;
+    }
+
+    if (!*bp) {
+        return nullptr;
+    }
+
+    if (filter) {
+        ascii_filter(bp, strlen(bp));
+    }
+
+    return bp;
+}
+
+
+const char *dmi_string(dmi_header *dm, size_t offset)
+{
+    if (offset < 4) {
+        return nullptr;
+    }
+
+    return _dmi_string(dm, dm->data[offset], true);
+}
+
+
+} // namespace xmrig