You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
52 lines
1.5 KiB
52 lines
1.5 KiB
/* Copyright (c) 2013 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. |
|
*/ |
|
|
|
#ifndef VBOOT_REFERENCE_CROSSYSTEM_H_ |
|
#define VBOOT_REFERENCE_CROSSYSTEM_H_ |
|
|
|
#ifdef __cplusplus |
|
extern "C" { |
|
#endif |
|
|
|
#include <stddef.h> |
|
|
|
/* Recommended size for string property buffers used with |
|
* VbGetSystemPropertyString(). */ |
|
#define VB_MAX_STRING_PROPERTY ((size_t) 8192) |
|
|
|
/* Reads a system property integer. |
|
* |
|
* Returns the property value, or -1 if error. */ |
|
int VbGetSystemPropertyInt(const char* name); |
|
|
|
/* Read a system property string into a destination buffer of the |
|
* specified size. Returned string will be null-terminated. If the |
|
* buffer is too small, the returned string will be truncated. |
|
* |
|
* The caller can expect an un-truncated value if the size provided is |
|
* at least VB_MAX_STRING_PROPERTY. |
|
* |
|
* Returns the passed buffer, or NULL if error. */ |
|
const char* VbGetSystemPropertyString(const char* name, char* dest, |
|
size_t size); |
|
|
|
/* Sets a system property integer. |
|
* |
|
* Returns 0 if success, -1 if error. */ |
|
int VbSetSystemPropertyInt(const char* name, int value); |
|
|
|
/* Set a system property string. |
|
* |
|
* The maximum length of the value accepted depends on the specific |
|
* property, not on VB_MAX_STRING_PROPERTY. |
|
* |
|
* Returns 0 if success, -1 if error. */ |
|
int VbSetSystemPropertyString(const char* name, const char* value); |
|
|
|
#ifdef __cplusplus |
|
} |
|
#endif |
|
|
|
#endif /* VBOOT_REFERENCE__CROSSYSTEM_H_ */
|
|
|