More cgptlib tests

firmware/lib/cgptlib/cgptlib_internal.c

 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "cgptlib.h"
 #include "cgptlib_internal.h"
 #include "crc32.h"
 #include "gpt.h"
 #include "utility.h"
@@ skipping 134 matching lines @@
     for (i2 = 0, e2 = entries; i2 < h->number_of_entries; i2++, e2++) {
       if (i2 == i || IsUnusedEntry(e2))
         continue;
 
       if ((entry->starting_lba >= e2->starting_lba) &&
           (entry->starting_lba <= e2->ending_lba))
         return 1;
       if ((entry->ending_lba >= e2->starting_lba) &&
           (entry->ending_lba <= e2->ending_lba))
         return 1;
+
+      /* UniqueGuid field must be unique. */
+      if (0 == Memcmp(&entry->unique, &e2->unique, sizeof(Guid)))
+        return 1;
     }
   }
 
   /* Success */
   return 0;
 }
 
 
 /* Returns 0 if the GptHeaders are the same for all fields which don't
  * differ between the primary and secondary headers - that is, all
@@ skipping 180 matching lines @@
   e->attrs.fields.gpt_att &= ~CGPT_ATTRIBUTE_TRIES_MASK;
   e->attrs.fields.gpt_att |= (tries << CGPT_ATTRIBUTE_TRIES_OFFSET) &
       CGPT_ATTRIBUTE_TRIES_MASK;
 }
 
 void GetCurrentKernelUniqueGuid(GptData *gpt, void *dest) {
   GptEntry* entries = (GptEntry*)gpt->primary_entries;
   GptEntry* e = entries + gpt->current_kernel;
   Memcpy(dest, &e->unique, sizeof(Guid));
 }