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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 "shared-bindings/socketpool/SocketPool.h"
#include "common-hal/socketpool/Socket.h"
#include "py/runtime.h"
#include "shared-bindings/wifi/__init__.h"
#include "components/lwip/lwip/src/include/lwip/netdb.h"
#include "bindings/espidf/__init__.h"
void common_hal_socketpool_socketpool_construct(socketpool_socketpool_obj_t *self, mp_obj_t radio) {
if (radio != MP_OBJ_FROM_PTR(&common_hal_wifi_radio_obj)) {
mp_raise_ValueError(translate("SocketPool can only be used with wifi.radio"));
}
}
socketpool_socket_obj_t *common_hal_socketpool_socket(socketpool_socketpool_obj_t *self,
socketpool_socketpool_addressfamily_t family, socketpool_socketpool_sock_t type) {
int addr_family;
int ipproto;
if (family == SOCKETPOOL_AF_INET) {
addr_family = AF_INET;
ipproto = IPPROTO_IP;
} else { // INET6
addr_family = AF_INET6;
ipproto = IPPROTO_IPV6;
}
int socket_type;
if (type == SOCKETPOOL_SOCK_STREAM) {
socket_type = SOCK_STREAM;
} else if (type == SOCKETPOOL_SOCK_DGRAM) {
socket_type = SOCK_DGRAM;
} else { // SOCKETPOOL_SOCK_RAW
socket_type = SOCK_RAW;
}
if (addr_family == AF_INET6 || ipproto == IPPROTO_IPV6) {
mp_raise_NotImplementedError(translate("Only IPv4 sockets supported"));
}
socketpool_socket_obj_t *sock = m_new_obj_with_finaliser(socketpool_socket_obj_t);
sock->base.type = &socketpool_socket_type;
sock->type = socket_type;
sock->family = addr_family;
sock->ipproto = ipproto;
sock->pool = self;
sock->timeout_ms = (uint)-1;
// Create LWIP socket
int socknum = -1;
socknum = lwip_socket(sock->family, sock->type, sock->ipproto);
if (socknum < 0 || !register_open_socket(sock)) {
mp_raise_RuntimeError(translate("Out of sockets"));
}
sock->num = socknum;
// Sockets should be nonblocking in most cases
lwip_fcntl(socknum, F_SETFL, O_NONBLOCK);
return sock;
}
mp_obj_t common_hal_socketpool_socketpool_gethostbyname(socketpool_socketpool_obj_t *self,
const char *host) {
const struct addrinfo hints = {
.ai_family = AF_INET,
.ai_socktype = SOCK_STREAM,
};
struct addrinfo *res;
int err = getaddrinfo(host, NULL, &hints, &res);
if (err != 0 || res == NULL) {
return mp_const_none;
}
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-align"
struct in_addr *addr = &((struct sockaddr_in *)res->ai_addr)->sin_addr;
#pragma GCC diagnostic pop
char ip_str[IP4ADDR_STRLEN_MAX];
inet_ntoa_r(*addr, ip_str, IP4ADDR_STRLEN_MAX);
mp_obj_t ip_obj = mp_obj_new_str(ip_str, strlen(ip_str));
freeaddrinfo(res);
return ip_obj;
}
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