Marco Zecchini / Mbed OS Example_RTOS

Rtos API example

mbed-os/features/netsocket/SocketAddress.cpp@0:9fca2b23d0ba, 2019-02-23 (annotated)

Committer:
marcozecchini
Date:
Sat Feb 23 12:13:36 2019 +0000
Revision:
0:9fca2b23d0ba
final commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
marcozecchini 0:9fca2b23d0ba 1 /* Socket
marcozecchini 0:9fca2b23d0ba 2 * Copyright (c) 2015 ARM Limited
marcozecchini 0:9fca2b23d0ba 3 *
marcozecchini 0:9fca2b23d0ba 4 * Licensed under the Apache License, Version 2.0 (the "License");
marcozecchini 0:9fca2b23d0ba 5 * you may not use this file except in compliance with the License.
marcozecchini 0:9fca2b23d0ba 6 * You may obtain a copy of the License at
marcozecchini 0:9fca2b23d0ba 7 *
marcozecchini 0:9fca2b23d0ba 8 * http://www.apache.org/licenses/LICENSE-2.0
marcozecchini 0:9fca2b23d0ba 9 *
marcozecchini 0:9fca2b23d0ba 10 * Unless required by applicable law or agreed to in writing, software
marcozecchini 0:9fca2b23d0ba 11 * distributed under the License is distributed on an "AS IS" BASIS,
marcozecchini 0:9fca2b23d0ba 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
marcozecchini 0:9fca2b23d0ba 13 * See the License for the specific language governing permissions and
marcozecchini 0:9fca2b23d0ba 14 * limitations under the License.
marcozecchini 0:9fca2b23d0ba 15 */
marcozecchini 0:9fca2b23d0ba 16
marcozecchini 0:9fca2b23d0ba 17 #include "SocketAddress.h"
marcozecchini 0:9fca2b23d0ba 18 #include "NetworkInterface.h"
marcozecchini 0:9fca2b23d0ba 19 #include "NetworkStack.h"
marcozecchini 0:9fca2b23d0ba 20 #include <string.h>
marcozecchini 0:9fca2b23d0ba 21 #include "mbed.h"
marcozecchini 0:9fca2b23d0ba 22
marcozecchini 0:9fca2b23d0ba 23
marcozecchini 0:9fca2b23d0ba 24 static bool ipv4_is_valid(const char *addr)
marcozecchini 0:9fca2b23d0ba 25 {
marcozecchini 0:9fca2b23d0ba 26 int i = 0;
marcozecchini 0:9fca2b23d0ba 27
marcozecchini 0:9fca2b23d0ba 28 // Check each digit for [0-9.]
marcozecchini 0:9fca2b23d0ba 29 for (; addr[i]; i++) {
marcozecchini 0:9fca2b23d0ba 30 if (!(addr[i] >= '0' && addr[i] <= '9') && addr[i] != '.') {
marcozecchini 0:9fca2b23d0ba 31 return false;
marcozecchini 0:9fca2b23d0ba 32 }
marcozecchini 0:9fca2b23d0ba 33 }
marcozecchini 0:9fca2b23d0ba 34
marcozecchini 0:9fca2b23d0ba 35 // Ending with '.' garuntees host
marcozecchini 0:9fca2b23d0ba 36 if (i > 0 && addr[i-1] == '.') {
marcozecchini 0:9fca2b23d0ba 37 return false;
marcozecchini 0:9fca2b23d0ba 38 }
marcozecchini 0:9fca2b23d0ba 39
marcozecchini 0:9fca2b23d0ba 40 return true;
marcozecchini 0:9fca2b23d0ba 41 }
marcozecchini 0:9fca2b23d0ba 42
marcozecchini 0:9fca2b23d0ba 43 static bool ipv6_is_valid(const char *addr)
marcozecchini 0:9fca2b23d0ba 44 {
marcozecchini 0:9fca2b23d0ba 45 // Check each digit for [0-9a-fA-F:]
marcozecchini 0:9fca2b23d0ba 46 // Must also have at least 2 colons
marcozecchini 0:9fca2b23d0ba 47 int colons = 0;
marcozecchini 0:9fca2b23d0ba 48 for (int i = 0; addr[i]; i++) {
marcozecchini 0:9fca2b23d0ba 49 if (!(addr[i] >= '0' && addr[i] <= '9') &&
marcozecchini 0:9fca2b23d0ba 50 !(addr[i] >= 'a' && addr[i] <= 'f') &&
marcozecchini 0:9fca2b23d0ba 51 !(addr[i] >= 'A' && addr[i] <= 'F') &&
marcozecchini 0:9fca2b23d0ba 52 addr[i] != ':') {
marcozecchini 0:9fca2b23d0ba 53 return false;
marcozecchini 0:9fca2b23d0ba 54 }
marcozecchini 0:9fca2b23d0ba 55 if (addr[i] == ':') {
marcozecchini 0:9fca2b23d0ba 56 colons++;
marcozecchini 0:9fca2b23d0ba 57 }
marcozecchini 0:9fca2b23d0ba 58 }
marcozecchini 0:9fca2b23d0ba 59
marcozecchini 0:9fca2b23d0ba 60 return colons >= 2;
marcozecchini 0:9fca2b23d0ba 61 }
marcozecchini 0:9fca2b23d0ba 62
marcozecchini 0:9fca2b23d0ba 63 static void ipv4_from_address(uint8_t *bytes, const char *addr)
marcozecchini 0:9fca2b23d0ba 64 {
marcozecchini 0:9fca2b23d0ba 65 int count = 0;
marcozecchini 0:9fca2b23d0ba 66 int i = 0;
marcozecchini 0:9fca2b23d0ba 67
marcozecchini 0:9fca2b23d0ba 68 for (; count < NSAPI_IPv4_BYTES; count++) {
marcozecchini 0:9fca2b23d0ba 69 unsigned char b;
marcozecchini 0:9fca2b23d0ba 70 int scanned = sscanf(&addr[i], "%hhu", &b);
marcozecchini 0:9fca2b23d0ba 71 if (scanned < 1) {
marcozecchini 0:9fca2b23d0ba 72 return;
marcozecchini 0:9fca2b23d0ba 73 }
marcozecchini 0:9fca2b23d0ba 74
marcozecchini 0:9fca2b23d0ba 75 bytes[count] = b;
marcozecchini 0:9fca2b23d0ba 76
marcozecchini 0:9fca2b23d0ba 77 for (; addr[i] != '.'; i++) {
marcozecchini 0:9fca2b23d0ba 78 if (!addr[i]) {
marcozecchini 0:9fca2b23d0ba 79 return;
marcozecchini 0:9fca2b23d0ba 80 }
marcozecchini 0:9fca2b23d0ba 81 }
marcozecchini 0:9fca2b23d0ba 82
marcozecchini 0:9fca2b23d0ba 83 i++;
marcozecchini 0:9fca2b23d0ba 84 }
marcozecchini 0:9fca2b23d0ba 85 }
marcozecchini 0:9fca2b23d0ba 86
marcozecchini 0:9fca2b23d0ba 87 static int ipv6_scan_chunk(uint16_t *shorts, const char *chunk) {
marcozecchini 0:9fca2b23d0ba 88 int count = 0;
marcozecchini 0:9fca2b23d0ba 89 int i = 0;
marcozecchini 0:9fca2b23d0ba 90
marcozecchini 0:9fca2b23d0ba 91 for (; count < NSAPI_IPv6_BYTES/2; count++) {
marcozecchini 0:9fca2b23d0ba 92 unsigned short s;
marcozecchini 0:9fca2b23d0ba 93 int scanned = sscanf(&chunk[i], "%hx", &s);
marcozecchini 0:9fca2b23d0ba 94 if (scanned < 1) {
marcozecchini 0:9fca2b23d0ba 95 return count;
marcozecchini 0:9fca2b23d0ba 96 }
marcozecchini 0:9fca2b23d0ba 97
marcozecchini 0:9fca2b23d0ba 98 shorts[count] = s;
marcozecchini 0:9fca2b23d0ba 99
marcozecchini 0:9fca2b23d0ba 100 for (; chunk[i] != ':'; i++) {
marcozecchini 0:9fca2b23d0ba 101 if (!chunk[i]) {
marcozecchini 0:9fca2b23d0ba 102 return count+1;
marcozecchini 0:9fca2b23d0ba 103 }
marcozecchini 0:9fca2b23d0ba 104 }
marcozecchini 0:9fca2b23d0ba 105
marcozecchini 0:9fca2b23d0ba 106 i++;
marcozecchini 0:9fca2b23d0ba 107 }
marcozecchini 0:9fca2b23d0ba 108
marcozecchini 0:9fca2b23d0ba 109 return count;
marcozecchini 0:9fca2b23d0ba 110 }
marcozecchini 0:9fca2b23d0ba 111
marcozecchini 0:9fca2b23d0ba 112 static void ipv6_from_address(uint8_t *bytes, const char *addr)
marcozecchini 0:9fca2b23d0ba 113 {
marcozecchini 0:9fca2b23d0ba 114 // Start with zeroed address
marcozecchini 0:9fca2b23d0ba 115 uint16_t shorts[NSAPI_IPv6_BYTES/2];
marcozecchini 0:9fca2b23d0ba 116 int suffix = 0;
marcozecchini 0:9fca2b23d0ba 117
marcozecchini 0:9fca2b23d0ba 118 // Find double colons and scan suffix
marcozecchini 0:9fca2b23d0ba 119 for (int i = 0; addr[i]; i++) {
marcozecchini 0:9fca2b23d0ba 120 if (addr[i] == ':' && addr[i+1] == ':') {
marcozecchini 0:9fca2b23d0ba 121 suffix = ipv6_scan_chunk(shorts, &addr[i+2]);
marcozecchini 0:9fca2b23d0ba 122 break;
marcozecchini 0:9fca2b23d0ba 123 }
marcozecchini 0:9fca2b23d0ba 124 }
marcozecchini 0:9fca2b23d0ba 125
marcozecchini 0:9fca2b23d0ba 126 // Move suffix to end
marcozecchini 0:9fca2b23d0ba 127 memmove(&shorts[NSAPI_IPv6_BYTES/2-suffix], &shorts[0],
marcozecchini 0:9fca2b23d0ba 128 suffix*sizeof(uint16_t));
marcozecchini 0:9fca2b23d0ba 129 memset(&shorts[0], 0,
marcozecchini 0:9fca2b23d0ba 130 (NSAPI_IPv6_BYTES/2-suffix)*sizeof(uint16_t));
marcozecchini 0:9fca2b23d0ba 131
marcozecchini 0:9fca2b23d0ba 132 // Scan prefix
marcozecchini 0:9fca2b23d0ba 133 ipv6_scan_chunk(shorts, &addr[0]);
marcozecchini 0:9fca2b23d0ba 134
marcozecchini 0:9fca2b23d0ba 135 // Flip bytes
marcozecchini 0:9fca2b23d0ba 136 for (int i = 0; i < NSAPI_IPv6_BYTES/2; i++) {
marcozecchini 0:9fca2b23d0ba 137 bytes[2*i+0] = (uint8_t)(shorts[i] >> 8);
marcozecchini 0:9fca2b23d0ba 138 bytes[2*i+1] = (uint8_t)(shorts[i] >> 0);
marcozecchini 0:9fca2b23d0ba 139 }
marcozecchini 0:9fca2b23d0ba 140 }
marcozecchini 0:9fca2b23d0ba 141
marcozecchini 0:9fca2b23d0ba 142 static void ipv4_to_address(char *addr, const uint8_t *bytes)
marcozecchini 0:9fca2b23d0ba 143 {
marcozecchini 0:9fca2b23d0ba 144 sprintf(addr, "%d.%d.%d.%d", bytes[0], bytes[1], bytes[2], bytes[3]);
marcozecchini 0:9fca2b23d0ba 145 }
marcozecchini 0:9fca2b23d0ba 146
marcozecchini 0:9fca2b23d0ba 147 static void ipv6_to_address(char *addr, const uint8_t *bytes)
marcozecchini 0:9fca2b23d0ba 148 {
marcozecchini 0:9fca2b23d0ba 149 for (int i = 0; i < NSAPI_IPv6_BYTES/2; i++) {
marcozecchini 0:9fca2b23d0ba 150 sprintf(&addr[5*i], "%02x%02x", bytes[2*i], bytes[2*i+1]);
marcozecchini 0:9fca2b23d0ba 151 addr[5*i+4] = ':';
marcozecchini 0:9fca2b23d0ba 152 }
marcozecchini 0:9fca2b23d0ba 153 addr[NSAPI_IPv6_SIZE-1] = '\0';
marcozecchini 0:9fca2b23d0ba 154 }
marcozecchini 0:9fca2b23d0ba 155
marcozecchini 0:9fca2b23d0ba 156
marcozecchini 0:9fca2b23d0ba 157 SocketAddress::SocketAddress(nsapi_addr_t addr, uint16_t port)
marcozecchini 0:9fca2b23d0ba 158 {
marcozecchini 0:9fca2b23d0ba 159 _ip_address[0] = '\0';
marcozecchini 0:9fca2b23d0ba 160 set_addr(addr);
marcozecchini 0:9fca2b23d0ba 161 set_port(port);
marcozecchini 0:9fca2b23d0ba 162 }
marcozecchini 0:9fca2b23d0ba 163
marcozecchini 0:9fca2b23d0ba 164 SocketAddress::SocketAddress(const char *addr, uint16_t port)
marcozecchini 0:9fca2b23d0ba 165 {
marcozecchini 0:9fca2b23d0ba 166 _ip_address[0] = '\0';
marcozecchini 0:9fca2b23d0ba 167 set_ip_address(addr);
marcozecchini 0:9fca2b23d0ba 168 set_port(port);
marcozecchini 0:9fca2b23d0ba 169 }
marcozecchini 0:9fca2b23d0ba 170
marcozecchini 0:9fca2b23d0ba 171 SocketAddress::SocketAddress(const void *bytes, nsapi_version_t version, uint16_t port)
marcozecchini 0:9fca2b23d0ba 172 {
marcozecchini 0:9fca2b23d0ba 173 _ip_address[0] = '\0';
marcozecchini 0:9fca2b23d0ba 174 set_ip_bytes(bytes, version);
marcozecchini 0:9fca2b23d0ba 175 set_port(port);
marcozecchini 0:9fca2b23d0ba 176 }
marcozecchini 0:9fca2b23d0ba 177
marcozecchini 0:9fca2b23d0ba 178 SocketAddress::SocketAddress(const SocketAddress &addr)
marcozecchini 0:9fca2b23d0ba 179 {
marcozecchini 0:9fca2b23d0ba 180 _ip_address[0] = '\0';
marcozecchini 0:9fca2b23d0ba 181 set_addr(addr.get_addr());
marcozecchini 0:9fca2b23d0ba 182 set_port(addr.get_port());
marcozecchini 0:9fca2b23d0ba 183 }
marcozecchini 0:9fca2b23d0ba 184
marcozecchini 0:9fca2b23d0ba 185 bool SocketAddress::set_ip_address(const char *addr)
marcozecchini 0:9fca2b23d0ba 186 {
marcozecchini 0:9fca2b23d0ba 187 _ip_address[0] = '\0';
marcozecchini 0:9fca2b23d0ba 188
marcozecchini 0:9fca2b23d0ba 189 if (addr && ipv4_is_valid(addr)) {
marcozecchini 0:9fca2b23d0ba 190 _addr.version = NSAPI_IPv4;
marcozecchini 0:9fca2b23d0ba 191 ipv4_from_address(_addr.bytes, addr);
marcozecchini 0:9fca2b23d0ba 192 return true;
marcozecchini 0:9fca2b23d0ba 193 } else if (addr && ipv6_is_valid(addr)) {
marcozecchini 0:9fca2b23d0ba 194 _addr.version = NSAPI_IPv6;
marcozecchini 0:9fca2b23d0ba 195 ipv6_from_address(_addr.bytes, addr);
marcozecchini 0:9fca2b23d0ba 196 return true;
marcozecchini 0:9fca2b23d0ba 197 } else {
marcozecchini 0:9fca2b23d0ba 198 _addr = nsapi_addr_t();
marcozecchini 0:9fca2b23d0ba 199 return false;
marcozecchini 0:9fca2b23d0ba 200 }
marcozecchini 0:9fca2b23d0ba 201 }
marcozecchini 0:9fca2b23d0ba 202
marcozecchini 0:9fca2b23d0ba 203 void SocketAddress::set_ip_bytes(const void *bytes, nsapi_version_t version)
marcozecchini 0:9fca2b23d0ba 204 {
marcozecchini 0:9fca2b23d0ba 205 nsapi_addr_t addr;
marcozecchini 0:9fca2b23d0ba 206
marcozecchini 0:9fca2b23d0ba 207 addr = nsapi_addr_t();
marcozecchini 0:9fca2b23d0ba 208 addr.version = version;
marcozecchini 0:9fca2b23d0ba 209 if (version == NSAPI_IPv6) {
marcozecchini 0:9fca2b23d0ba 210 memcpy(addr.bytes, bytes, NSAPI_IPv6_BYTES);
marcozecchini 0:9fca2b23d0ba 211 } else if (version == NSAPI_IPv4) {
marcozecchini 0:9fca2b23d0ba 212 memcpy(addr.bytes, bytes, NSAPI_IPv4_BYTES);
marcozecchini 0:9fca2b23d0ba 213 }
marcozecchini 0:9fca2b23d0ba 214 set_addr(addr);
marcozecchini 0:9fca2b23d0ba 215 }
marcozecchini 0:9fca2b23d0ba 216
marcozecchini 0:9fca2b23d0ba 217 void SocketAddress::set_addr(nsapi_addr_t addr)
marcozecchini 0:9fca2b23d0ba 218 {
marcozecchini 0:9fca2b23d0ba 219 _ip_address[0] = '\0';
marcozecchini 0:9fca2b23d0ba 220 _addr = addr;
marcozecchini 0:9fca2b23d0ba 221 }
marcozecchini 0:9fca2b23d0ba 222
marcozecchini 0:9fca2b23d0ba 223 void SocketAddress::set_port(uint16_t port)
marcozecchini 0:9fca2b23d0ba 224 {
marcozecchini 0:9fca2b23d0ba 225 _port = port;
marcozecchini 0:9fca2b23d0ba 226 }
marcozecchini 0:9fca2b23d0ba 227
marcozecchini 0:9fca2b23d0ba 228 const char *SocketAddress::get_ip_address() const
marcozecchini 0:9fca2b23d0ba 229 {
marcozecchini 0:9fca2b23d0ba 230 if (_addr.version == NSAPI_UNSPEC) {
marcozecchini 0:9fca2b23d0ba 231 return NULL;
marcozecchini 0:9fca2b23d0ba 232 }
marcozecchini 0:9fca2b23d0ba 233
marcozecchini 0:9fca2b23d0ba 234 if (!_ip_address[0]) {
marcozecchini 0:9fca2b23d0ba 235 if (_addr.version == NSAPI_IPv4) {
marcozecchini 0:9fca2b23d0ba 236 ipv4_to_address(_ip_address, _addr.bytes);
marcozecchini 0:9fca2b23d0ba 237 } else if (_addr.version == NSAPI_IPv6) {
marcozecchini 0:9fca2b23d0ba 238 ipv6_to_address(_ip_address, _addr.bytes);
marcozecchini 0:9fca2b23d0ba 239 }
marcozecchini 0:9fca2b23d0ba 240 }
marcozecchini 0:9fca2b23d0ba 241
marcozecchini 0:9fca2b23d0ba 242 return _ip_address;
marcozecchini 0:9fca2b23d0ba 243 }
marcozecchini 0:9fca2b23d0ba 244
marcozecchini 0:9fca2b23d0ba 245 const void *SocketAddress::get_ip_bytes() const
marcozecchini 0:9fca2b23d0ba 246 {
marcozecchini 0:9fca2b23d0ba 247 return _addr.bytes;
marcozecchini 0:9fca2b23d0ba 248 }
marcozecchini 0:9fca2b23d0ba 249
marcozecchini 0:9fca2b23d0ba 250 nsapi_version_t SocketAddress::get_ip_version() const
marcozecchini 0:9fca2b23d0ba 251 {
marcozecchini 0:9fca2b23d0ba 252 return _addr.version;
marcozecchini 0:9fca2b23d0ba 253 }
marcozecchini 0:9fca2b23d0ba 254
marcozecchini 0:9fca2b23d0ba 255 nsapi_addr_t SocketAddress::get_addr() const
marcozecchini 0:9fca2b23d0ba 256 {
marcozecchini 0:9fca2b23d0ba 257 return _addr;
marcozecchini 0:9fca2b23d0ba 258 }
marcozecchini 0:9fca2b23d0ba 259
marcozecchini 0:9fca2b23d0ba 260 uint16_t SocketAddress::get_port() const
marcozecchini 0:9fca2b23d0ba 261 {
marcozecchini 0:9fca2b23d0ba 262 return _port;
marcozecchini 0:9fca2b23d0ba 263 }
marcozecchini 0:9fca2b23d0ba 264
marcozecchini 0:9fca2b23d0ba 265 SocketAddress::operator bool() const
marcozecchini 0:9fca2b23d0ba 266 {
marcozecchini 0:9fca2b23d0ba 267 if (_addr.version == NSAPI_IPv4) {
marcozecchini 0:9fca2b23d0ba 268 for (int i = 0; i < NSAPI_IPv4_BYTES; i++) {
marcozecchini 0:9fca2b23d0ba 269 if (_addr.bytes[i]) {
marcozecchini 0:9fca2b23d0ba 270 return true;
marcozecchini 0:9fca2b23d0ba 271 }
marcozecchini 0:9fca2b23d0ba 272 }
marcozecchini 0:9fca2b23d0ba 273
marcozecchini 0:9fca2b23d0ba 274 return false;
marcozecchini 0:9fca2b23d0ba 275 } else if (_addr.version == NSAPI_IPv6) {
marcozecchini 0:9fca2b23d0ba 276 for (int i = 0; i < NSAPI_IPv6_BYTES; i++) {
marcozecchini 0:9fca2b23d0ba 277 if (_addr.bytes[i]) {
marcozecchini 0:9fca2b23d0ba 278 return true;
marcozecchini 0:9fca2b23d0ba 279 }
marcozecchini 0:9fca2b23d0ba 280 }
marcozecchini 0:9fca2b23d0ba 281
marcozecchini 0:9fca2b23d0ba 282 return false;
marcozecchini 0:9fca2b23d0ba 283 } else {
marcozecchini 0:9fca2b23d0ba 284 return false;
marcozecchini 0:9fca2b23d0ba 285 }
marcozecchini 0:9fca2b23d0ba 286 }
marcozecchini 0:9fca2b23d0ba 287
marcozecchini 0:9fca2b23d0ba 288 bool operator==(const SocketAddress &a, const SocketAddress &b)
marcozecchini 0:9fca2b23d0ba 289 {
marcozecchini 0:9fca2b23d0ba 290 if (!a && !b) {
marcozecchini 0:9fca2b23d0ba 291 return true;
marcozecchini 0:9fca2b23d0ba 292 } else if (a._addr.version != b._addr.version) {
marcozecchini 0:9fca2b23d0ba 293 return false;
marcozecchini 0:9fca2b23d0ba 294 } else if (a._addr.version == NSAPI_IPv4) {
marcozecchini 0:9fca2b23d0ba 295 return memcmp(a._addr.bytes, b._addr.bytes, NSAPI_IPv4_BYTES) == 0;
marcozecchini 0:9fca2b23d0ba 296 } else if (a._addr.version == NSAPI_IPv6) {
marcozecchini 0:9fca2b23d0ba 297 return memcmp(a._addr.bytes, b._addr.bytes, NSAPI_IPv6_BYTES) == 0;
marcozecchini 0:9fca2b23d0ba 298 }
marcozecchini 0:9fca2b23d0ba 299
marcozecchini 0:9fca2b23d0ba 300 MBED_UNREACHABLE;
marcozecchini 0:9fca2b23d0ba 301 }
marcozecchini 0:9fca2b23d0ba 302
marcozecchini 0:9fca2b23d0ba 303 bool operator!=(const SocketAddress &a, const SocketAddress &b)
marcozecchini 0:9fca2b23d0ba 304 {
marcozecchini 0:9fca2b23d0ba 305 return !(a == b);
marcozecchini 0:9fca2b23d0ba 306 }
marcozecchini 0:9fca2b23d0ba 307
marcozecchini 0:9fca2b23d0ba 308 void SocketAddress::_SocketAddress(NetworkStack *iface, const char *host, uint16_t port)
marcozecchini 0:9fca2b23d0ba 309 {
marcozecchini 0:9fca2b23d0ba 310 _ip_address[0] = '\0';
marcozecchini 0:9fca2b23d0ba 311
marcozecchini 0:9fca2b23d0ba 312 // gethostbyname must check for literals, so can call it directly
marcozecchini 0:9fca2b23d0ba 313 int err = iface->gethostbyname(host, this);
marcozecchini 0:9fca2b23d0ba 314 _port = port;
marcozecchini 0:9fca2b23d0ba 315 if (err) {
marcozecchini 0:9fca2b23d0ba 316 _addr = nsapi_addr_t();
marcozecchini 0:9fca2b23d0ba 317 _port = 0;
marcozecchini 0:9fca2b23d0ba 318 }
marcozecchini 0:9fca2b23d0ba 319 }