efi_loader: adjust sorting of capsules
Up to now we only compared the first letter of the capsule name to sort
them alphabetically. Properly sort by the Unicode alphabet.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/lib/efi_loader/efi_capsule.c b/lib/efi_loader/efi_capsule.c
index 1163a2e..0997cd2 100644
--- a/lib/efi_loader/efi_capsule.c
+++ b/lib/efi_loader/efi_capsule.c
@@ -1108,10 +1108,13 @@
/* ignore an error */
EFI_CALL((*dirh->close)(dirh));
- /* in ascii order */
- /* FIXME: u16 version of strcasecmp */
+ /*
+ * Capsule files are applied in case insensitive alphabetic order
+ *
+ * TODO: special handling of rightmost period
+ */
qsort(tmp_files, count, sizeof(*tmp_files),
- (int (*)(const void *, const void *))strcasecmp);
+ (int (*)(const void *, const void *))u16_strcasecmp);
*files = tmp_files;
*num = count;
ret = EFI_SUCCESS;