mirror of
https://github.com/espressif/esp-idf.git
synced 2025-11-04 09:01:40 +01:00
31 lines
700 B
C
31 lines
700 B
C
|
/*
|
||
|
|
* SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: Apache-2.0
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
#include "test_mbedtls_utils.h"
|
||
|
|
|
||
|
|
static inline char to_hex_digit(unsigned val)
|
||
|
|
{
|
||
|
|
return (val < 10) ? ('0' + val) : ('a' + val - 10);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void utils_bin2hex(char *const hex, const size_t hex_maxlen, const unsigned char *const bin, const size_t bin_len)
|
||
|
|
{
|
||
|
|
assert(bin_len < SIZE_MAX / 2);
|
||
|
|
assert(hex_maxlen > bin_len * 2U);
|
||
|
|
assert(hex);
|
||
|
|
assert(bin);
|
||
|
|
|
||
|
|
int i;
|
||
|
|
for (i = 0; i < bin_len; i++) {
|
||
|
|
hex[2*i] = to_hex_digit(bin[i] >> 4);
|
||
|
|
hex[2*i + 1] = to_hex_digit(bin[i] & 0xf);
|
||
|
|
}
|
||
|
|
hex[i * 2U] = 0U;
|
||
|
|
}
|