Rework BlEfiDirectorySeparator(), now it operates on wide strings

xtldr/efiutil.c

@@ -163,26 +163,35 @@ BlDbgPrint(IN PUINT16 Format,
 }
 
 /**
- * Replaces slashes (/) with backslashes (\) in the input string.
+ * Replaces slashes (/) with backslashes (\) in the string containing on-disk path.
  *
  * @param Path
- *        A pointer to the string containing a system path, where directory separator will get replaced.
+ *        A pointer to the string containing an original system path.
  *
- * @return This routine does not return any value.
+ * @return A pointer to converted string with EFI supported path separators.
  *
  * @since XT 1.0
  */
-VOID
+PWCHAR
-BlEfiDirectorySeparator(IN OUT PUCHAR Path)
+BlEfiDirectorySeparator(IN PWCHAR Path)
 {
+    PWCHAR EfiPath = NULL;
+
     while(*Path)
     {
         if(*Path == '/')
         {
-            *Path = '\\';
+            *EfiPath = '\\';
+        }
+        else
+        {
+            *EfiPath = *Path;
         }
         Path++;
+        EfiPath++;
     }
+
+    return EfiPath;
 }
 
 /**

xtldr/includes/xtbl.h

@@ -51,8 +51,8 @@ VOID
 BlDbgPrint(IN PUINT16 Format,
            IN ...);
 
-VOID
+PWCHAR
-BlEfiDirectorySeparator(IN OUT PUCHAR Path);
+BlEfiDirectorySeparator(IN PWCHAR Path);
 
 INT_PTR
 BlEfiGetSecureBootStatus();