Peter Drescher / cc3000_hostdriver_mbedsocket

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Fork of cc3000_hostdriver_mbedsocket by Martin Kojtal

Socket/Endpoint.cpp@12:1c2a856c618a, 2013-10-02 (annotated)

Committer:
Martin Kojtal
Date:
Wed Oct 02 17:02:34 2013 +0200
Revision:
12:1c2a856c618a
Parent:
11:5e3771b29385
Child:
16:f3676ae62f96
Debug messages (\r\n), socket bsd naming

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Martin Kojtal 12:1c2a856c618a 1 /* Copyright (C) 2013 mbed.org, MIT License
Martin Kojtal 12:1c2a856c618a 2 *
Martin Kojtal 12:1c2a856c618a 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
Martin Kojtal 12:1c2a856c618a 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
Martin Kojtal 12:1c2a856c618a 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
Martin Kojtal 12:1c2a856c618a 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
Martin Kojtal 12:1c2a856c618a 7 * furnished to do so, subject to the following conditions:
Martin Kojtal 12:1c2a856c618a 8 *
Martin Kojtal 12:1c2a856c618a 9 * The above copyright notice and this permission notice shall be included in all copies or
Martin Kojtal 12:1c2a856c618a 10 * substantial portions of the Software.
Martin Kojtal 12:1c2a856c618a 11 *
Martin Kojtal 12:1c2a856c618a 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
Martin Kojtal 12:1c2a856c618a 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Martin Kojtal 12:1c2a856c618a 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
Martin Kojtal 12:1c2a856c618a 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Martin Kojtal 12:1c2a856c618a 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Martin Kojtal 12:1c2a856c618a 17 */
Martin Kojtal 12:1c2a856c618a 18 #include "Socket/Socket.h"
Martin Kojtal 12:1c2a856c618a 19 #include "Socket/Endpoint.h"
Martin Kojtal 12:1c2a856c618a 20 #include "Helper/def.h"
Martin Kojtal 12:1c2a856c618a 21 #include <cstring>
Martin Kojtal 12:1c2a856c618a 22
Martin Kojtal 12:1c2a856c618a 23 #include "cc3000.h"
Martin Kojtal 12:1c2a856c618a 24
Martin Kojtal 12:1c2a856c618a 25 /* Copied from lwip */
Martin Kojtal 12:1c2a856c618a 26 static char *inet_ntoa_r(const in_addr addr, char *buf, int buflen)
Martin Kojtal 12:1c2a856c618a 27 {
Martin Kojtal 12:1c2a856c618a 28 uint32_t s_addr;
Martin Kojtal 12:1c2a856c618a 29 char inv[3];
Martin Kojtal 12:1c2a856c618a 30 char *rp;
Martin Kojtal 12:1c2a856c618a 31 uint8_t *ap;
Martin Kojtal 12:1c2a856c618a 32 uint8_t rem;
Martin Kojtal 12:1c2a856c618a 33 uint8_t n;
Martin Kojtal 12:1c2a856c618a 34 uint8_t i;
Martin Kojtal 12:1c2a856c618a 35 int len = 0;
Martin Kojtal 12:1c2a856c618a 36
Martin Kojtal 12:1c2a856c618a 37 s_addr = addr.s_addr;
Martin Kojtal 12:1c2a856c618a 38
Martin Kojtal 12:1c2a856c618a 39 rp = buf;
Martin Kojtal 12:1c2a856c618a 40 ap = (uint8_t *)&s_addr;
Martin Kojtal 12:1c2a856c618a 41 for(n = 0; n < 4; n++) {
Martin Kojtal 12:1c2a856c618a 42 i = 0;
Martin Kojtal 12:1c2a856c618a 43 do {
Martin Kojtal 12:1c2a856c618a 44 rem = *ap % (uint8_t)10;
Martin Kojtal 12:1c2a856c618a 45 *ap /= (uint8_t)10;
Martin Kojtal 12:1c2a856c618a 46 inv[i++] = '0' + rem;
Martin Kojtal 12:1c2a856c618a 47 } while(*ap);
Martin Kojtal 12:1c2a856c618a 48 while(i--) {
Martin Kojtal 12:1c2a856c618a 49 if (len++ >= buflen) {
Martin Kojtal 12:1c2a856c618a 50 return NULL;
Martin Kojtal 12:1c2a856c618a 51 }
Martin Kojtal 12:1c2a856c618a 52 *rp++ = inv[i];
Martin Kojtal 12:1c2a856c618a 53 }
Martin Kojtal 12:1c2a856c618a 54 if (len++ >= buflen) {
Martin Kojtal 12:1c2a856c618a 55 return NULL;
Martin Kojtal 12:1c2a856c618a 56 }
Martin Kojtal 12:1c2a856c618a 57 *rp++ = '.';
Martin Kojtal 12:1c2a856c618a 58 ap++;
Martin Kojtal 12:1c2a856c618a 59 }
Martin Kojtal 12:1c2a856c618a 60 *--rp = 0;
Martin Kojtal 12:1c2a856c618a 61 return buf;
Martin Kojtal 12:1c2a856c618a 62 }
Martin Kojtal 12:1c2a856c618a 63
Martin Kojtal 12:1c2a856c618a 64 Endpoint::Endpoint() {
Martin Kojtal 12:1c2a856c618a 65 _cc3000_module = cc3000::get_instance();
Martin Kojtal 12:1c2a856c618a 66 if (_cc3000_module == NULL) {
Martin Kojtal 12:1c2a856c618a 67 error("Endpoint constructor error: no cc3000 instance available!\r\n");
Martin Kojtal 12:1c2a856c618a 68 }
Martin Kojtal 12:1c2a856c618a 69 reset_address();
Martin Kojtal 12:1c2a856c618a 70 }
Martin Kojtal 12:1c2a856c618a 71 Endpoint::~Endpoint() {}
Martin Kojtal 12:1c2a856c618a 72
Martin Kojtal 12:1c2a856c618a 73 void Endpoint::reset_address(void) {
Martin Kojtal 12:1c2a856c618a 74 _ipAddress[0] = '\0';
Martin Kojtal 12:1c2a856c618a 75 std::memset(&_remote_host, 0, sizeof(sockaddr_in));
Martin Kojtal 12:1c2a856c618a 76 }
Martin Kojtal 12:1c2a856c618a 77
Martin Kojtal 12:1c2a856c618a 78 int Endpoint::set_address(const char* host, const int port) {
Martin Kojtal 12:1c2a856c618a 79 reset_address();
Martin Kojtal 12:1c2a856c618a 80
Martin Kojtal 12:1c2a856c618a 81 char address[5];
Martin Kojtal 12:1c2a856c618a 82 char *p_address = address;
Martin Kojtal 12:1c2a856c618a 83
Martin Kojtal 12:1c2a856c618a 84 signed int add[5];
Martin Kojtal 12:1c2a856c618a 85
Martin Kojtal 12:1c2a856c618a 86 // Dot-decimal notation
Martin Kojtal 12:1c2a856c618a 87 int result = std::sscanf(host, "%3u.%3u.%3u.%3u", &add[0], &add[1], &add[2], &add[3]);
Martin Kojtal 12:1c2a856c618a 88 for (int i=0;i<4;i++) {
Martin Kojtal 12:1c2a856c618a 89 address[i] = add[i];
Martin Kojtal 12:1c2a856c618a 90 }
Martin Kojtal 12:1c2a856c618a 91 std::memset(_ipAddress,0,sizeof(_ipAddress));
Martin Kojtal 12:1c2a856c618a 92
Martin Kojtal 12:1c2a856c618a 93 if (result != 4) {
Martin Kojtal 12:1c2a856c618a 94 //Resolve DNS address or populate hard-coded IP address
Martin Kojtal 12:1c2a856c618a 95 uint32_t address_integer;
Martin Kojtal 12:1c2a856c618a 96 _cc3000_module->_socket.gethostbyname((uint8_t *)host, strlen(host) , &address_integer);
Martin Kojtal 12:1c2a856c618a 97
Martin Kojtal 12:1c2a856c618a 98 uint32_t ip = 0;
Martin Kojtal 12:1c2a856c618a 99 ip = (ip | (address_integer >> 24));
Martin Kojtal 12:1c2a856c618a 100 ip = (ip | ((address_integer & 0x00FF0000) >> 8));
Martin Kojtal 12:1c2a856c618a 101 ip = (ip | ((address_integer & 0x0000FF00) << 8));
Martin Kojtal 12:1c2a856c618a 102 ip = (ip | ((address_integer & 0x000000FF) << 24));
Martin Kojtal 12:1c2a856c618a 103 _remote_host.sin_addr.s_addr = ip;
Martin Kojtal 12:1c2a856c618a 104 inet_ntoa_r(_remote_host.sin_addr, _ipAddress, sizeof(_ipAddress));
Martin Kojtal 12:1c2a856c618a 105 } else {
Martin Kojtal 12:1c2a856c618a 106 std::memcpy((char*)&_remote_host.sin_addr.s_addr, p_address, 4);
Martin Kojtal 12:1c2a856c618a 107 }
Martin Kojtal 12:1c2a856c618a 108
Martin Kojtal 12:1c2a856c618a 109 _remote_host.sin_family = AF_INET;
Martin Kojtal 12:1c2a856c618a 110 _remote_host.sin_port = htons(port);
Martin Kojtal 12:1c2a856c618a 111
Martin Kojtal 12:1c2a856c618a 112 #if (CC3000_DEBUG == 1)
Martin Kojtal 12:1c2a856c618a 113 printf("DEBUG: remote host address (string): %s \r\n",get_address());
Martin Kojtal 12:1c2a856c618a 114 printf("DEBUG: remote host address from s_addr : %d.%d.%d.%d \r\n",
Martin Kojtal 12:1c2a856c618a 115 int(_remote_host.sin_addr.s_addr & 0xFF),
Martin Kojtal 12:1c2a856c618a 116 int((_remote_host.sin_addr.s_addr & 0xFF00) >> 8),
Martin Kojtal 12:1c2a856c618a 117 int((_remote_host.sin_addr.s_addr & 0xFF0000) >> 16),
Martin Kojtal 12:1c2a856c618a 118 int((_remote_host.sin_addr.s_addr & 0xFF000000) >> 24));
Martin Kojtal 12:1c2a856c618a 119 printf("DEBUG: port: 0x%x \r\n", _remote_host.sin_port);
Martin Kojtal 12:1c2a856c618a 120 #endif
Martin Kojtal 12:1c2a856c618a 121 return 0;
Martin Kojtal 12:1c2a856c618a 122 }
Martin Kojtal 12:1c2a856c618a 123
Martin Kojtal 12:1c2a856c618a 124 char* Endpoint::get_address() {
Martin Kojtal 12:1c2a856c618a 125 if ((_ipAddress[0] == '\0') && (_remote_host.sin_addr.s_addr != 0))
Martin Kojtal 12:1c2a856c618a 126 inet_ntoa_r(_remote_host.sin_addr, _ipAddress, sizeof(_ipAddress));
Martin Kojtal 12:1c2a856c618a 127 return _ipAddress;
Martin Kojtal 12:1c2a856c618a 128 }
Martin Kojtal 12:1c2a856c618a 129
Martin Kojtal 12:1c2a856c618a 130
Martin Kojtal 12:1c2a856c618a 131 int Endpoint::get_port() {
Martin Kojtal 12:1c2a856c618a 132 return ntohs(_remote_host.sin_port);
Martin Kojtal 12:1c2a856c618a 133 }