79 lines
3.0 KiB
C
79 lines
3.0 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2020 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "shared-bindings/socketpool/SocketPool.h"
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#include "common-hal/socketpool/Socket.h"
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#include "py/runtime.h"
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#include "shared-bindings/wifi/__init__.h"
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#include "components/lwip/lwip/src/include/lwip/netdb.h"
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#include "bindings/espidf/__init__.h"
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void common_hal_socketpool_socketpool_construct(socketpool_socketpool_obj_t *self, mp_obj_t radio) {
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if (radio != MP_OBJ_FROM_PTR(&common_hal_wifi_radio_obj)) {
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mp_raise_ValueError(translate("SocketPool can only be used with wifi.radio"));
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}
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}
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// common_hal_socketpool_socket is in socketpool/Socket.c to centralize open socket tracking.
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mp_obj_t common_hal_socketpool_socketpool_gethostbyname(socketpool_socketpool_obj_t *self,
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const char *host) {
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// As of 2022, the version of lwip in esp-idf does not handle the
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// trailing-dot syntax of domain names, so emulate it.
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// Remove this once https://github.com/espressif/esp-idf/issues/10013 has
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// been implemented
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size_t strlen_host = strlen(host);
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if (strlen_host && host[strlen_host - 1] == '.') {
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mp_obj_t nodot = mp_obj_new_str(host, strlen_host - 1);
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host = mp_obj_str_get_str(nodot);
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}
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const struct addrinfo hints = {
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.ai_family = AF_INET,
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.ai_socktype = SOCK_STREAM,
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};
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struct addrinfo *res;
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int err = lwip_getaddrinfo(host, NULL, &hints, &res);
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if (err != 0 || res == NULL) {
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return mp_const_none;
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}
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wcast-align"
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struct in_addr *addr = &((struct sockaddr_in *)res->ai_addr)->sin_addr;
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#pragma GCC diagnostic pop
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char ip_str[IP4ADDR_STRLEN_MAX];
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inet_ntoa_r(*addr, ip_str, IP4ADDR_STRLEN_MAX);
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mp_obj_t ip_obj = mp_obj_new_str(ip_str, strlen(ip_str));
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lwip_freeaddrinfo(res);
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return ip_obj;
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}
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