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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2020 Scott Shawcroft for Adafruit Industries
*
* 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 "py/objexcept.h"
#include "py/objstr.h"
#include "py/parsenum.h"
#include "py/runtime.h"
#include "shared-bindings/ipaddress/__init__.h"
#include "shared-bindings/ipaddress/IPv4Address.h"
//| """
//| The `ipaddress` module provides types for IP addresses. It is a subset of CPython's ipaddress
//| module.
//| """
//|
bool ipaddress_parse_ipv4address(const char *str_data, size_t str_len, uint32_t *ip_out) {
size_t period_count = 0;
size_t period_index[4] = {0, 0, 0, str_len};
for (size_t i = 0; i < str_len; i++) {
if (str_data[i] == '.') {
if (period_count < 3) {
period_index[period_count] = i;
}
period_count++;
}
}
if (period_count > 3) {
return false;
}
size_t last_period = 0;
if (ip_out != NULL) {
*ip_out = 0;
}
for (size_t i = 0; i < 4; i++) {
// Catch exceptions thrown by mp_parse_num_integer
nlr_buf_t nlr;
mp_obj_t octet;
if (nlr_push(&nlr) == 0) {
octet = mp_parse_num_integer((const char *)str_data + last_period, period_index[i] - last_period, 10, NULL);
nlr_pop();
} else {
return false;
}
last_period = period_index[i] + 1;
if (ip_out != NULL) {
mp_int_t int_octet = MP_OBJ_SMALL_INT_VALUE(octet);
*ip_out |= int_octet << (i * 8);
}
}
return true;
}
//| def ip_address(obj: Union[int, str]) -> IPv4Address:
//| """Return a corresponding IP address object or raise ValueError if not possible."""
//| ...
//|
STATIC mp_obj_t ipaddress_ip_address(mp_obj_t ip_in) {
uint32_t value;
if (mp_obj_get_int_maybe(ip_in, (mp_int_t *)&value)) {
// We're done.
} else if (mp_obj_is_str(ip_in)) {
GET_STR_DATA_LEN(ip_in, str_data, str_len);
if (!ipaddress_parse_ipv4address((const char *)str_data, str_len, &value)) {
mp_raise_ValueError(translate("Not a valid IP string"));
}
} else {
mp_raise_ValueError(translate("Only int or string supported for ip"));
}
return common_hal_ipaddress_new_ipv4address(value);
}
MP_DEFINE_CONST_FUN_OBJ_1(ipaddress_ip_address_obj, ipaddress_ip_address);
STATIC const mp_rom_map_elem_t ipaddress_module_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_ipaddress) },
{ MP_ROM_QSTR(MP_QSTR_ip_address), MP_ROM_PTR(&ipaddress_ip_address_obj) },
{ MP_ROM_QSTR(MP_QSTR_IPv4Address), MP_ROM_PTR(&ipaddress_ipv4address_type) },
};
STATIC MP_DEFINE_CONST_DICT(ipaddress_module_globals, ipaddress_module_globals_table);
const mp_obj_module_t ipaddress_module = {
.base = { &mp_type_module },
.globals = (mp_obj_dict_t *)&ipaddress_module_globals,
};
MP_REGISTER_MODULE(MP_QSTR_ipaddress, ipaddress_module, CIRCUITPY_IPADDRESS);
|
