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Add tests for vboot_reference stateful_util.c

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BUG=chromium-os:17564
TEST=make && make runtests

Change-Id: I5d55be2dfead0c5d7af72841cbd6c65485685cd6
Reviewed-on: http://gerrit.chromium.org/gerrit/6596
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
Tested-by: Randall Spangler <rspangler@chromium.org>
This commit is contained in:
Randall Spangler
2011-08-24 12:07:43 -07:00
parent 0a9977e161
commit 1f5d53f7bd
7 changed files with 345 additions and 8 deletions
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14
firmware/lib/include/stateful_util.h
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@@ -1,4 +1,4 @@
/* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
/* Copyright (c) 2011 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.
*/
@@ -19,10 +19,14 @@ typedef struct MemcpyState {
uint8_t overrun; /* Flag set to 1 when an overrun occurs. */
} MemcpyState;
/* Initialize a stateful buffer struct to point to the buffer, with
* the specified remaining length in bytes. */
void StatefulInit(MemcpyState* state, void* buf, uint64_t len);
/* Skip [len] bytes only if there's enough data to skip according
* to [state].
* On success, return a meaningless but non-NULL pointer and updates [state].
* On failure, return NULL, set remaining_len in state to -1.
* On failure, return NULL, set state->overrun to 1.
*
* Useful for iterating through a binary blob to populate a struct. After the
* first failure (buffer overrun), successive calls will always fail.
@@ -32,7 +36,7 @@ void* StatefulSkip(MemcpyState* state, uint64_t len);
/* 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.
* On failure, return NULL, set state->overrun to 1.
*
* Useful for iterating through a binary blob to populate a struct. After the
* first failure (buffer overrun), successive calls will always fail.
@@ -42,7 +46,7 @@ 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.
* On failure, return NULL, set state->overrun to 1.
*
* Useful for iterating through a structure to populate a binary blob. After the
* first failure (buffer overrun), successive calls will always fail.
@@ -52,7 +56,7 @@ 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.
* On failure, return NULL, set state->overrun to 1.
*
* After the first failure (buffer overrun), successive calls will always fail.
*/