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tmk_keyboard/tool/mbed/mbed-sdk/libraries/net/lwip/Socket/Endpoint.cpp

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/* Copyright (C) 2012 mbed.org, MIT License
*
* 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 "Socket/Socket.h"
#include "Socket/Endpoint.h"
#include <cstring>
#include <cstdio>
Endpoint::Endpoint() {
reset_address();
}
Endpoint::~Endpoint() {}
void Endpoint::reset_address(void) {
std::memset(&_remoteHost, 0, sizeof(struct sockaddr_in));
_ipAddress[0] = '\0';
}
#include "stdio.h"
int Endpoint::set_address(const char* host, const int port) {
reset_address();
// IP Address
char address[5];
char *p_address = address;
// Dot-decimal notation
int result = std::sscanf(host, "%3u.%3u.%3u.%3u",
(unsigned int*)&address[0], (unsigned int*)&address[1],
(unsigned int*)&address[2], (unsigned int*)&address[3]);
if (result != 4) {
// Resolve address with DNS
struct hostent *host_address = lwip_gethostbyname(host);
if (host_address == NULL)
return -1; //Could not resolve address
p_address = (char*)host_address->h_addr_list[0];
}
std::memcpy((char*)&_remoteHost.sin_addr.s_addr, p_address, 4);
// Address family
_remoteHost.sin_family = AF_INET;
// Set port
_remoteHost.sin_port = htons(port);
return 0;
}
char* Endpoint::get_address() {
if ((_ipAddress[0] == '\0') && (_remoteHost.sin_addr.s_addr != 0))
inet_ntoa_r(_remoteHost.sin_addr, _ipAddress, sizeof(_ipAddress));
return _ipAddress;
}
int Endpoint::get_port() {
return ntohs(_remoteHost.sin_port);
}