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Fork of Nucleo_F746ZG_Ethernet by Dieter Graef

Committer:
DieterGraef
Date:
Sat Jun 18 10:49:12 2016 +0000
Revision:
0:f9b6112278fe
Ethernet for the NUCLEO STM32F746 Board Testprogram uses DHCP and NTP to set the clock

Who changed what in which revision?

UserRevisionLine numberNew contents of line
DieterGraef 0:f9b6112278fe 1 /* Copyright (C) 2012 mbed.org, MIT License
DieterGraef 0:f9b6112278fe 2 *
DieterGraef 0:f9b6112278fe 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
DieterGraef 0:f9b6112278fe 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
DieterGraef 0:f9b6112278fe 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
DieterGraef 0:f9b6112278fe 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
DieterGraef 0:f9b6112278fe 7 * furnished to do so, subject to the following conditions:
DieterGraef 0:f9b6112278fe 8 *
DieterGraef 0:f9b6112278fe 9 * The above copyright notice and this permission notice shall be included in all copies or
DieterGraef 0:f9b6112278fe 10 * substantial portions of the Software.
DieterGraef 0:f9b6112278fe 11 *
DieterGraef 0:f9b6112278fe 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
DieterGraef 0:f9b6112278fe 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
DieterGraef 0:f9b6112278fe 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DieterGraef 0:f9b6112278fe 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
DieterGraef 0:f9b6112278fe 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
DieterGraef 0:f9b6112278fe 17 */
DieterGraef 0:f9b6112278fe 18 #include "Socket/Socket.h"
DieterGraef 0:f9b6112278fe 19 #include "Socket/Endpoint.h"
DieterGraef 0:f9b6112278fe 20 #include <cstring>
DieterGraef 0:f9b6112278fe 21 #include <cstdio>
DieterGraef 0:f9b6112278fe 22
DieterGraef 0:f9b6112278fe 23 Endpoint::Endpoint() {
DieterGraef 0:f9b6112278fe 24 reset_address();
DieterGraef 0:f9b6112278fe 25 }
DieterGraef 0:f9b6112278fe 26 Endpoint::~Endpoint() {}
DieterGraef 0:f9b6112278fe 27
DieterGraef 0:f9b6112278fe 28 void Endpoint::reset_address(void) {
DieterGraef 0:f9b6112278fe 29 std::memset(&_remoteHost, 0, sizeof(struct sockaddr_in));
DieterGraef 0:f9b6112278fe 30 _ipAddress[0] = '\0';
DieterGraef 0:f9b6112278fe 31 }
DieterGraef 0:f9b6112278fe 32
DieterGraef 0:f9b6112278fe 33 #include "stdio.h"
DieterGraef 0:f9b6112278fe 34
DieterGraef 0:f9b6112278fe 35 int Endpoint::set_address(const char* host, const int port) {
DieterGraef 0:f9b6112278fe 36 reset_address();
DieterGraef 0:f9b6112278fe 37
DieterGraef 0:f9b6112278fe 38 // IP Address
DieterGraef 0:f9b6112278fe 39 char address[5];
DieterGraef 0:f9b6112278fe 40 char *p_address = address;
DieterGraef 0:f9b6112278fe 41
DieterGraef 0:f9b6112278fe 42 // Dot-decimal notation
DieterGraef 0:f9b6112278fe 43 int result = std::sscanf(host, "%3u.%3u.%3u.%3u",
DieterGraef 0:f9b6112278fe 44 (unsigned int*)&address[0], (unsigned int*)&address[1],
DieterGraef 0:f9b6112278fe 45 (unsigned int*)&address[2], (unsigned int*)&address[3]);
DieterGraef 0:f9b6112278fe 46
DieterGraef 0:f9b6112278fe 47 if (result != 4) {
DieterGraef 0:f9b6112278fe 48 // Resolve address with DNS
DieterGraef 0:f9b6112278fe 49 struct hostent *host_address = lwip_gethostbyname(host);
DieterGraef 0:f9b6112278fe 50 if (host_address == NULL)
DieterGraef 0:f9b6112278fe 51 return -1; //Could not resolve address
DieterGraef 0:f9b6112278fe 52 p_address = (char*)host_address->h_addr_list[0];
DieterGraef 0:f9b6112278fe 53 }
DieterGraef 0:f9b6112278fe 54 std::memcpy((char*)&_remoteHost.sin_addr.s_addr, p_address, 4);
DieterGraef 0:f9b6112278fe 55
DieterGraef 0:f9b6112278fe 56 // Address family
DieterGraef 0:f9b6112278fe 57 _remoteHost.sin_family = AF_INET;
DieterGraef 0:f9b6112278fe 58
DieterGraef 0:f9b6112278fe 59 // Set port
DieterGraef 0:f9b6112278fe 60 _remoteHost.sin_port = htons(port);
DieterGraef 0:f9b6112278fe 61
DieterGraef 0:f9b6112278fe 62 return 0;
DieterGraef 0:f9b6112278fe 63 }
DieterGraef 0:f9b6112278fe 64
DieterGraef 0:f9b6112278fe 65 int Endpoint::set_address(in_addr host) {
DieterGraef 0:f9b6112278fe 66 reset_address();
DieterGraef 0:f9b6112278fe 67 inet_ntoa_r(host, _ipAddress, sizeof(_ipAddress));
DieterGraef 0:f9b6112278fe 68 return 0;
DieterGraef 0:f9b6112278fe 69 }
DieterGraef 0:f9b6112278fe 70
DieterGraef 0:f9b6112278fe 71 char* Endpoint::get_address() {
DieterGraef 0:f9b6112278fe 72 if ((_ipAddress[0] == '\0') && (_remoteHost.sin_addr.s_addr != 0))
DieterGraef 0:f9b6112278fe 73 inet_ntoa_r(_remoteHost.sin_addr, _ipAddress, sizeof(_ipAddress));
DieterGraef 0:f9b6112278fe 74 return _ipAddress;
DieterGraef 0:f9b6112278fe 75 }
DieterGraef 0:f9b6112278fe 76
DieterGraef 0:f9b6112278fe 77 int Endpoint::get_port() {
DieterGraef 0:f9b6112278fe 78 return ntohs(_remoteHost.sin_port);
DieterGraef 0:f9b6112278fe 79 }