StatefulMem* functions should be library functions.

src/platform/vboot_reference/vboot_firmware/include/utility.h

 /* 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.
  */
 
 /* Helper functions/wrappers for memory allocations, manipulation and
  * comparison.
  */
 
 #ifndef VBOOT_REFERENCE_UTILITY_H_
 #define VBOOT_REFERENCE_UTILITY_H_
 
 #include <stdint.h>
 #include <string.h>
 
 /* Outputs an error message and quits. */
 void error(const char *format, ...);
 
 /* Outputs debug/warning messages. */
 void debug(const char *format, ...);
 
-
 #define assert(expr) do { if (!(expr)) { \
       error("assert fail: %s at %s:%d\n", \
             #expr, __FILE__, __LINE__); }} while(0)
 
 /* Combine [msw] and [lsw] uint16s to a uint32_t with its [msw] and
  * [lsw] forming the most and least signficant 16-bit words.
  */
 #define CombineUint16Pair(msw,lsw) (((msw) << 16) |     \
                                     (((lsw)) & 0xFFFF))
 /* Return the minimum of (a) or (b). */
@@ skipping 18 matching lines @@
 
 /* Set [n] bytes starting at [s] to [c]. */
 void* Memset(void *dest, const uint8_t c, size_t n);
 
 /* Compare [n] bytes starting at [s1] with [s2] and return 0 if they match,
  * 1 if they don't. Time taken to perform the comparison is only dependent on
  * [n] and not on the relationship of the match between [s1] and [s2].
  */
 int SafeMemcmp(const void* s1, const void* s2, size_t n);
 
-/* Track remaining data to be read in a buffer. */
-typedef struct MemcpyState {
-  void* remaining_buf;
-  uint64_t remaining_len;  /* Remaining length of the buffer. */
-  uint8_t overrun;  /* Flag set to 1 when an overrun occurs. */
-} MemcpyState;
-
-/* Copy [len] bytes into [dst] only if there's enough data to read according
- * to [state].
- * On success, return [dst] and update [state].
- * On failure, return NULL, set remaining len in state to -1.
- *
- * Useful for iterating through a binary blob to populate a struct. After the
- * first failure (buffer overrun), successive calls will always fail.
- */
-void* StatefulMemcpy(MemcpyState* state, void* dst, uint64_t len);
-
-/* Like StatefulMemcpy() but copies in the opposite direction, populating
- * data from [src] into the buffer encapsulated in state [state].
- * On success, return [src] and update [state].
- * On failure, return NULL, set remaining_len in state to -1.
- *
- * Useful for iterating through a structure to populate a binary blob. After the
- * first failure (buffer overrun), successive calls will always fail.
- */
-const void* StatefulMemcpy_r(MemcpyState* state, const void* src, uint64_t len);
-
-/* Like StatefulMemcpy_r() but fills a portion of the encapsulated buffer with
- * a constant value.
- * On success, return a meaningless but non-NULL pointer and updates [state].
- * On failure, return NULL, set remaining_len in state to -1.
- *
- * After the first failure (buffer overrun), successive calls will always fail.
- */
-const void* StatefulMemset_r(MemcpyState* state, const uint8_t val,
-                             uint64_t len);
+/* Ensure that only our stub implementations are used, not standard C */
+#ifndef _STUB_IMPLEMENTATION_
+#define malloc _do_not_use_standard_malloc
+#define free _do_not_use_standard_free
+#define memcmp _do_not_use_standard_memcmp
+#define memcpy _do_not_use_standard_memcpy
+#define memset _do_not_use_standard_memset
+#endif
 
 
 #endif  /* VBOOT_REFERENCE_UTILITY_H_ */