mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-18 12:28:09 +00:00
55 lines
2.2 KiB
C
55 lines
2.2 KiB
C
/**
|
|
* Copyright (c) 2016 Daira Hopwood
|
|
* Copyright (c) 2016 Pavol Rusnak
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included
|
|
* in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
|
|
* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include "address.h"
|
|
|
|
size_t address_prefix_bytes_len(uint32_t address_type)
|
|
{
|
|
if (address_type <= 0xFF) return 1;
|
|
if (address_type <= 0xFFFF) return 2;
|
|
if (address_type <= 0xFFFFFF) return 3;
|
|
return 4;
|
|
}
|
|
|
|
void address_write_prefix_bytes(uint32_t address_type, uint8_t *out)
|
|
{
|
|
if (address_type > 0xFFFFFF) *(out++) = address_type >> 24;
|
|
if (address_type > 0xFFFF) *(out++) = (address_type >> 16) & 0xFF;
|
|
if (address_type > 0xFF) *(out++) = (address_type >> 8) & 0xFF;
|
|
*(out++) = address_type & 0xFF;
|
|
}
|
|
|
|
bool address_check_prefix(const uint8_t *addr, uint32_t address_type)
|
|
{
|
|
if (address_type <= 0xFF) {
|
|
return address_type == (uint32_t)(addr[0]);
|
|
}
|
|
if (address_type <= 0xFFFF) {
|
|
return address_type == ((uint32_t)(addr[0] << 8) | (uint32_t)(addr[1]));
|
|
}
|
|
if (address_type <= 0xFFFFFF) {
|
|
return address_type == ((uint32_t)(addr[0] << 16) | (uint32_t)(addr[1] << 8) | (uint32_t)(addr[2]));
|
|
}
|
|
return address_type == ((uint32_t)(addr[0] << 24) | (uint32_t)(addr[1] << 16) | (uint32_t)(addr[2] << 8) | (uint32_t)(addr[3]));
|
|
}
|