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/* Copyright 2022 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef __CROS_EC_STDIO_H__
#define __CROS_EC_STDIO_H__
#include "common.h"
#include <stdarg.h>
#include <stddef.h>
/**
* Print formatted outut to a string.
*
* Guarantees null-termination if size!=0.
*
* @param str Destination string
* @param size Size of destination in bytes
* @param format Format string
* @return EC_SUCCESS, or EC_ERROR_OVERFLOW if the output was truncated.
*/
__attribute__((__format__(__printf__, 3, 4)))
__warn_unused_result __stdlib_compat int
crec_snprintf(char *str, size_t size, const char *format, ...);
/**
* Print formatted output to a string.
*
* Guarantees null-termination if size!=0.
*
* @param str Destination string
* @param size Size of destination in bytes
* @param format Format string
* @param args Parameters
* @return The string length written to str, or a negative value on error.
* The negative values can be -EC_ERROR_INVAL or -EC_ERROR_OVERFLOW.
*/
__warn_unused_result __stdlib_compat int
crec_vsnprintf(char *str, size_t size, const char *format, va_list args);
/*
* Create weak aliases to the crec_* printf functions. This lets us call the
* crec_* printf functions in tests that link the C standard library.
*/
/**
* Alias to crec_snprintf.
*/
__attribute__((__format__(__printf__, 3, 4)))
__warn_unused_result __stdlib_compat int
snprintf(char *str, size_t size, const char *format, ...);
/**
* Alias to crec_vsnprintf.
*/
__warn_unused_result __stdlib_compat int
vsnprintf(char *str, size_t size, const char *format, va_list args);
#endif /* __CROS_EC_STDIO_H__ */
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