+// Returns FALSE if two measures of file size are identical for a single file,
+// TRUE if not or if the file can't be opened and the other measure is non-0.
+// Despite the function's name, this isn't really a direct test of symbolic
+// link status, since EFI doesn't officially support symlinks. It does seem
+// to be a reliable indicator, though. (OTOH, some disk errors might cause a
+// file to fail to open, which would return a false positive -- but as I use
+// this function to exclude symbolic links from the list of boot loaders,
+// that would be fine, since such boot loaders wouldn't work.)
+static BOOLEAN IsSymbolicLink(REFIT_VOLUME *Volume, CHAR16 *Path, EFI_FILE_INFO *DirEntry) {
+ EFI_FILE_HANDLE FileHandle;
+ EFI_FILE_INFO *FileInfo = NULL;
+ EFI_STATUS Status;
+ UINTN FileSize2 = 0;
+ CHAR16 *FileName;
+
+ FileName = StrDuplicate(Path);
+ MergeStrings(&FileName, DirEntry->FileName, L'\\');
+ CleanUpPathNameSlashes(FileName);
+
+ Status = refit_call5_wrapper(Volume->RootDir->Open, Volume->RootDir, &FileHandle, FileName, EFI_FILE_MODE_READ, 0);
+ if (Status == EFI_SUCCESS) {
+ FileInfo = LibFileInfo(FileHandle);
+ if (FileInfo != NULL)
+ FileSize2 = FileInfo->FileSize;
+ }
+
+ MyFreePool(FileName);
+ MyFreePool(FileInfo);
+
+ return (DirEntry->FileSize != FileSize2);
+} // BOOLEAN IsSymbolicLink()
+