Martin Kojtal / cc3000_hostdriver_mbedsocket Featured

cc3000 hostdriver with the mbed socket interface

Dependents:   cc3000_hello_world_demo cc3000_simple_socket_demo cc3000_ntp_demo cc3000_ping_demo ... more

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 }