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utils.cpp

@@ -0,0 +1,42 @@
+#include "utils.hpp"
+#include <string>
+#include <Windows.h>
+
+bool utils::DevicePathToDosPath(const char *devicePath, char *dosPath, size_t dosPathSize)
+{
+    char drive[3] = "A:";
+    char driveLetter[4];
+    char deviceName[MAX_PATH];
+    char path[MAX_PATH];
+
+    for (char letter = 'A'; letter <= 'Z'; ++letter)
+    {
+        drive[0] = letter;
+        if (QueryDosDeviceA(drive, deviceName, MAX_PATH))
+        {
+            size_t len = strlen(deviceName);
+            if (len < MAX_PATH && _strnicmp(devicePath, deviceName, len) == 0)
+            {
+                snprintf(dosPath, dosPathSize, "%c:%s", letter, devicePath + len);
+                return TRUE;
+            }
+        }
+    }
+    return FALSE;
+}
+
+void utils::swap(const char **a, const char **b)
+{
+    const char *temp = *a;
+    *a = *b;
+    *b = temp;
+}
+
+void utils::shuffle(const char **arr, size_t n)
+{
+    for (size_t i = n - 1; i > 0; --i)
+    {
+        size_t j = rand() % (i + 1);
+        swap(&arr[i], &arr[j]);
+    }
+}