// Returns the directory portion of a pathname. For instance,
// if FullPath is 'EFI\foo\bar.efi', this function returns the
-// string 'EFI\foo'.
+// string 'EFI\foo'. The calling function is responsible for
+// freeing the returned string's memory.
CHAR16 *FindPath(IN CHAR16* FullPath) {
UINTN i, LastBackslash = 0;
CHAR16 *PathOnly;
return (FoundString);
} // CHAR16 *FindCommaDelimited()
+// Returns TRUE if SmallString is an element in the comma-delimited List,
+// FALSE otherwise. Performs comparison case-insensitively (except on
+// buggy EFIs with case-sensitive StriCmp() functions).
+BOOLEAN IsIn(IN CHAR16 *SmallString, IN CHAR16 *List) {
+ UINTN i = 0;
+ BOOLEAN Found = FALSE;
+ CHAR16 *OneElement;
+
+ if (SmallString && List) {
+ while (!Found && (OneElement = FindCommaDelimited(List, i++))) {
+ if (StriCmp(OneElement, SmallString) == 0)
+ Found = TRUE;
+ } // while
+ } // if
+ return Found;
+} // BOOLEAN IsIn()
static EFI_GUID AppleRemovableMediaGuid = APPLE_REMOVABLE_MEDIA_PROTOCOL_GUID;
-// Eject all removable media
-VOID EjectMedia(VOID) {
+// Eject all removable media.
+// Returns TRUE if any media were ejected, FALSE otherwise.
+BOOLEAN EjectMedia(VOID) {
EFI_STATUS Status;
- UINTN HandleIndex, HandleCount = 0;
+ UINTN HandleIndex, HandleCount = 0, Ejected = 0;
EFI_HANDLE *Handles, Handle;
APPLE_REMOVABLE_MEDIA_PROTOCOL *Ejectable;
Status = LibLocateHandle(ByProtocol, &AppleRemovableMediaGuid, NULL, &HandleCount, &Handles);
if (EFI_ERROR(Status) || HandleCount == 0)
- return; // probably not an Apple system
+ return (FALSE); // probably not an Apple system
for (HandleIndex = 0; HandleIndex < HandleCount; HandleIndex++) {
Handle = Handles[HandleIndex];
if (EFI_ERROR(Status))
continue;
Status = refit_call1_wrapper(Ejectable->Eject, Ejectable);
+ if (!EFI_ERROR(Status))
+ Ejected++;
}
FreePool(Handles);
+ return (Ejected > 0);
} // VOID EjectMedia()