NetworkSocketAPI
Dependents: HelloWizFi250Interface
Fork of NetworkSocketAPI by
SocketAddress.cpp@94:644df37bb05b, 2016-04-19 (annotated)
- Committer:
- Christopher Haster
- Date:
- Tue Apr 19 18:23:58 2016 -0500
- Revision:
- 94:644df37bb05b
- Parent:
- 89:b1d417383c0d
- Child:
- 95:b3c679f20d13
Added support for storing bytes directly in SocketAddress
Bytes are stored by default, however enough space is allocated in
a SocketAddress to generate the string representation if necessary.
Currently there is no support for shortened addresses
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Christopher Haster |
89:b1d417383c0d | 1 | /* Socket |
Christopher Haster |
89:b1d417383c0d | 2 | * Copyright (c) 2015 ARM Limited |
Christopher Haster |
89:b1d417383c0d | 3 | * |
Christopher Haster |
89:b1d417383c0d | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
Christopher Haster |
89:b1d417383c0d | 5 | * you may not use this file except in compliance with the License. |
Christopher Haster |
89:b1d417383c0d | 6 | * You may obtain a copy of the License at |
Christopher Haster |
89:b1d417383c0d | 7 | * |
Christopher Haster |
89:b1d417383c0d | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
Christopher Haster |
89:b1d417383c0d | 9 | * |
Christopher Haster |
89:b1d417383c0d | 10 | * Unless required by applicable law or agreed to in writing, software |
Christopher Haster |
89:b1d417383c0d | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
Christopher Haster |
89:b1d417383c0d | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
Christopher Haster |
89:b1d417383c0d | 13 | * See the License for the specific language governing permissions and |
Christopher Haster |
89:b1d417383c0d | 14 | * limitations under the License. |
Christopher Haster |
89:b1d417383c0d | 15 | */ |
Christopher Haster |
89:b1d417383c0d | 16 | |
Christopher Haster |
89:b1d417383c0d | 17 | #include "SocketAddress.h" |
Christopher Haster |
89:b1d417383c0d | 18 | #include "NetworkInterface.h" |
Christopher Haster |
89:b1d417383c0d | 19 | #include <string.h> |
Christopher Haster |
89:b1d417383c0d | 20 | #include "mbed.h" |
Christopher Haster |
89:b1d417383c0d | 21 | |
Christopher Haster |
94:644df37bb05b | 22 | static bool address_is_ipv4(const char *addr) |
Christopher Haster |
94:644df37bb05b | 23 | { |
Christopher Haster |
94:644df37bb05b | 24 | int i = 0; |
Christopher Haster |
94:644df37bb05b | 25 | |
Christopher Haster |
94:644df37bb05b | 26 | // Check each digit for [0-9.] |
Christopher Haster |
94:644df37bb05b | 27 | for (; addr[i]; i++) { |
Christopher Haster |
94:644df37bb05b | 28 | if (!(addr[i] >= '0' && addr[i] <= '9') && addr[i] != '.') { |
Christopher Haster |
94:644df37bb05b | 29 | return false; |
Christopher Haster |
94:644df37bb05b | 30 | } |
Christopher Haster |
94:644df37bb05b | 31 | } |
Christopher Haster |
94:644df37bb05b | 32 | |
Christopher Haster |
94:644df37bb05b | 33 | // Ending with '.' garuntees host |
Christopher Haster |
94:644df37bb05b | 34 | if (i > 0 && addr[i-1] == '.') { |
Christopher Haster |
94:644df37bb05b | 35 | return false; |
Christopher Haster |
94:644df37bb05b | 36 | } |
Christopher Haster |
94:644df37bb05b | 37 | |
Christopher Haster |
94:644df37bb05b | 38 | return true; |
Christopher Haster |
94:644df37bb05b | 39 | } |
Christopher Haster |
94:644df37bb05b | 40 | |
Christopher Haster |
94:644df37bb05b | 41 | static bool address_is_ipv6(const char *addr) |
Christopher Haster |
94:644df37bb05b | 42 | { |
Christopher Haster |
94:644df37bb05b | 43 | // Check each digit for [0-9a-fA-F:] |
Christopher Haster |
94:644df37bb05b | 44 | for (int i = 0; addr[i]; i++) { |
Christopher Haster |
94:644df37bb05b | 45 | if (!(addr[i] >= '0' && addr[i] <= '9') && |
Christopher Haster |
94:644df37bb05b | 46 | !(addr[i] >= 'a' && addr[i] <= 'f') && |
Christopher Haster |
94:644df37bb05b | 47 | !(addr[i] >= 'A' && addr[i] <= 'F') && |
Christopher Haster |
94:644df37bb05b | 48 | addr[i] != ':') { |
Christopher Haster |
94:644df37bb05b | 49 | return false; |
Christopher Haster |
94:644df37bb05b | 50 | } |
Christopher Haster |
94:644df37bb05b | 51 | } |
Christopher Haster |
94:644df37bb05b | 52 | |
Christopher Haster |
94:644df37bb05b | 53 | return true; |
Christopher Haster |
94:644df37bb05b | 54 | } |
Christopher Haster |
94:644df37bb05b | 55 | |
Christopher Haster |
94:644df37bb05b | 56 | static void address_to_ipv4(uint8_t *bytes, const char *addr) |
Christopher Haster |
94:644df37bb05b | 57 | { |
Christopher Haster |
94:644df37bb05b | 58 | sscanf(addr, "%hhd.%hhd.%hhd.%hhd", &bytes[0], &bytes[1], &bytes[2], &bytes[3]); |
Christopher Haster |
94:644df37bb05b | 59 | } |
Christopher Haster |
94:644df37bb05b | 60 | |
Christopher Haster |
94:644df37bb05b | 61 | static void address_to_ipv6(uint8_t *bytes, const char *addr) |
Christopher Haster |
94:644df37bb05b | 62 | { |
Christopher Haster |
94:644df37bb05b | 63 | // TODO support short form (::1, 2001::ffee:100a) |
Christopher Haster |
94:644df37bb05b | 64 | // Use a more intellegent algorithm |
Christopher Haster |
94:644df37bb05b | 65 | uint16_t shorts[NSAPI_IPv6_BYTES/2]; |
Christopher Haster |
94:644df37bb05b | 66 | sscanf(addr, "%hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx", |
Christopher Haster |
94:644df37bb05b | 67 | &shorts[0], &shorts[1], &shorts[2], &shorts[3], |
Christopher Haster |
94:644df37bb05b | 68 | &shorts[4], &shorts[5], &shorts[6], &shorts[7]); |
Christopher Haster |
94:644df37bb05b | 69 | |
Christopher Haster |
94:644df37bb05b | 70 | for (int i = 0; i < NSAPI_IPv6_BYTES/2; i++) { |
Christopher Haster |
94:644df37bb05b | 71 | bytes[2*i+0] = (uint8_t)(shorts[i] >> 8); |
Christopher Haster |
94:644df37bb05b | 72 | bytes[2*i+1] = (uint8_t)(shorts[i] >> 0); |
Christopher Haster |
94:644df37bb05b | 73 | } |
Christopher Haster |
94:644df37bb05b | 74 | } |
Christopher Haster |
94:644df37bb05b | 75 | |
Christopher Haster |
94:644df37bb05b | 76 | static void ipv4_to_address(char *addr, const uint8_t *bytes) |
Christopher Haster |
94:644df37bb05b | 77 | { |
Christopher Haster |
94:644df37bb05b | 78 | sprintf(addr, "%d.%d.%d.%d", bytes[0], bytes[1], bytes[2], bytes[3]); |
Christopher Haster |
94:644df37bb05b | 79 | } |
Christopher Haster |
94:644df37bb05b | 80 | |
Christopher Haster |
94:644df37bb05b | 81 | static void ipv6_to_address(char *addr, const uint8_t *bytes) |
Christopher Haster |
94:644df37bb05b | 82 | { |
Christopher Haster |
94:644df37bb05b | 83 | for (int i = 0; i < NSAPI_IPv6_BYTES; i+=2) { |
Christopher Haster |
94:644df37bb05b | 84 | sprintf(&addr[5*i], "%02x%02x", bytes[i], bytes[i+1]); |
Christopher Haster |
94:644df37bb05b | 85 | addr[5*i+4] = ':'; |
Christopher Haster |
94:644df37bb05b | 86 | } |
Christopher Haster |
94:644df37bb05b | 87 | addr[NSAPI_IPv6_BYTES-1] = '\0'; |
Christopher Haster |
94:644df37bb05b | 88 | } |
Christopher Haster |
94:644df37bb05b | 89 | |
Christopher Haster |
89:b1d417383c0d | 90 | SocketAddress::SocketAddress(NetworkInterface *iface, const char *host, uint16_t port) |
Christopher Haster |
89:b1d417383c0d | 91 | { |
Christopher Haster |
94:644df37bb05b | 92 | // Check for valid IP addresses |
Christopher Haster |
94:644df37bb05b | 93 | if (host && address_is_ipv4(host)) { |
Christopher Haster |
94:644df37bb05b | 94 | _ip_version = NSAPI_IPv4; |
Christopher Haster |
94:644df37bb05b | 95 | address_to_ipv4(_ip_bytes, host); |
Christopher Haster |
94:644df37bb05b | 96 | } else if (host && address_is_ipv6(host)) { |
Christopher Haster |
94:644df37bb05b | 97 | _ip_version = NSAPI_IPv6; |
Christopher Haster |
94:644df37bb05b | 98 | address_to_ipv4(_ip_bytes, host); |
Christopher Haster |
94:644df37bb05b | 99 | } else { |
Christopher Haster |
94:644df37bb05b | 100 | // DNS lookup |
Christopher Haster |
94:644df37bb05b | 101 | char addr[NSAPI_IP_SIZE]; |
Christopher Haster |
94:644df37bb05b | 102 | int err = iface->gethostbyname(host, addr); |
Christopher Haster |
94:644df37bb05b | 103 | if (!err) { |
Christopher Haster |
94:644df37bb05b | 104 | set_ip_address(addr); |
Christopher Haster |
94:644df37bb05b | 105 | set_port(port); |
Christopher Haster |
94:644df37bb05b | 106 | } else { |
Christopher Haster |
94:644df37bb05b | 107 | _ip_version = NSAPI_IPv4; |
Christopher Haster |
94:644df37bb05b | 108 | memset(_ip_bytes, 0, NSAPI_IPv4_BYTES); |
Christopher Haster |
94:644df37bb05b | 109 | set_port(0); |
Christopher Haster |
94:644df37bb05b | 110 | } |
Christopher Haster |
89:b1d417383c0d | 111 | } |
Christopher Haster |
89:b1d417383c0d | 112 | } |
Christopher Haster |
89:b1d417383c0d | 113 | |
Christopher Haster |
89:b1d417383c0d | 114 | SocketAddress::SocketAddress(const char *addr, uint16_t port) |
Christopher Haster |
89:b1d417383c0d | 115 | { |
Christopher Haster |
89:b1d417383c0d | 116 | set_ip_address(addr); |
Christopher Haster |
89:b1d417383c0d | 117 | set_port(port); |
Christopher Haster |
89:b1d417383c0d | 118 | } |
Christopher Haster |
89:b1d417383c0d | 119 | |
Christopher Haster |
94:644df37bb05b | 120 | SocketAddress::SocketAddress(const void *bytes, nsapi_version_t version, uint16_t port) |
Christopher Haster |
94:644df37bb05b | 121 | { |
Christopher Haster |
94:644df37bb05b | 122 | set_ip_bytes(bytes, version); |
Christopher Haster |
94:644df37bb05b | 123 | set_port(port); |
Christopher Haster |
94:644df37bb05b | 124 | } |
Christopher Haster |
94:644df37bb05b | 125 | |
Christopher Haster |
89:b1d417383c0d | 126 | SocketAddress::SocketAddress(const SocketAddress &addr) |
Christopher Haster |
89:b1d417383c0d | 127 | { |
Christopher Haster |
94:644df37bb05b | 128 | set_ip_bytes(addr.get_ip_bytes(), addr.get_ip_version()); |
Christopher Haster |
89:b1d417383c0d | 129 | set_port(addr.get_port()); |
Christopher Haster |
89:b1d417383c0d | 130 | } |
Christopher Haster |
89:b1d417383c0d | 131 | |
Christopher Haster |
89:b1d417383c0d | 132 | void SocketAddress::set_ip_address(const char *addr) |
Christopher Haster |
89:b1d417383c0d | 133 | { |
Christopher Haster |
94:644df37bb05b | 134 | _ip_address[0] = '\0'; |
Christopher Haster |
94:644df37bb05b | 135 | |
Christopher Haster |
94:644df37bb05b | 136 | if (addr && address_is_ipv4(addr)) { |
Christopher Haster |
94:644df37bb05b | 137 | _ip_version = NSAPI_IPv4; |
Christopher Haster |
94:644df37bb05b | 138 | address_to_ipv4(_ip_bytes, addr); |
Christopher Haster |
94:644df37bb05b | 139 | } else if (addr && address_is_ipv6(addr)) { |
Christopher Haster |
94:644df37bb05b | 140 | _ip_version = NSAPI_IPv6; |
Christopher Haster |
94:644df37bb05b | 141 | address_to_ipv4(_ip_bytes, addr); |
Christopher Haster |
94:644df37bb05b | 142 | } else { |
Christopher Haster |
94:644df37bb05b | 143 | _ip_version = NSAPI_IPv4; |
Christopher Haster |
94:644df37bb05b | 144 | memset(_ip_bytes, 0, NSAPI_IPv4_BYTES); |
Christopher Haster |
94:644df37bb05b | 145 | } |
Christopher Haster |
94:644df37bb05b | 146 | } |
Christopher Haster |
94:644df37bb05b | 147 | |
Christopher Haster |
94:644df37bb05b | 148 | void SocketAddress::set_ip_bytes(const void *bytes, nsapi_version_t version) |
Christopher Haster |
94:644df37bb05b | 149 | { |
Christopher Haster |
94:644df37bb05b | 150 | _ip_address[0] = '\0'; |
Christopher Haster |
94:644df37bb05b | 151 | |
Christopher Haster |
94:644df37bb05b | 152 | if (_ip_version == NSAPI_IPv4) { |
Christopher Haster |
94:644df37bb05b | 153 | _ip_version = NSAPI_IPv4; |
Christopher Haster |
94:644df37bb05b | 154 | memcpy(_ip_bytes, bytes, NSAPI_IPv4_BYTES); |
Christopher Haster |
94:644df37bb05b | 155 | } else if (_ip_version == NSAPI_IPv6) { |
Christopher Haster |
94:644df37bb05b | 156 | _ip_version = NSAPI_IPv6; |
Christopher Haster |
94:644df37bb05b | 157 | memcpy(_ip_bytes, bytes, NSAPI_IPv6_BYTES); |
Christopher Haster |
94:644df37bb05b | 158 | } else { |
Christopher Haster |
94:644df37bb05b | 159 | _ip_version = NSAPI_IPv4; |
Christopher Haster |
94:644df37bb05b | 160 | memset(_ip_bytes, 0, NSAPI_IPv4_BYTES); |
Christopher Haster |
94:644df37bb05b | 161 | } |
Christopher Haster |
89:b1d417383c0d | 162 | } |
Christopher Haster |
89:b1d417383c0d | 163 | |
Christopher Haster |
89:b1d417383c0d | 164 | void SocketAddress::set_port(uint16_t port) |
Christopher Haster |
89:b1d417383c0d | 165 | { |
Christopher Haster |
89:b1d417383c0d | 166 | _port = port; |
Christopher Haster |
89:b1d417383c0d | 167 | } |
Christopher Haster |
89:b1d417383c0d | 168 | |
Christopher Haster |
89:b1d417383c0d | 169 | const char *SocketAddress::get_ip_address() const |
Christopher Haster |
89:b1d417383c0d | 170 | { |
Christopher Haster |
94:644df37bb05b | 171 | char *ip_address = (char *)_ip_address; |
Christopher Haster |
94:644df37bb05b | 172 | |
Christopher Haster |
94:644df37bb05b | 173 | if (!ip_address[0]) { |
Christopher Haster |
94:644df37bb05b | 174 | if (_ip_version == NSAPI_IPv4) { |
Christopher Haster |
94:644df37bb05b | 175 | ipv4_to_address(ip_address, _ip_bytes); |
Christopher Haster |
94:644df37bb05b | 176 | } else if (_ip_version == NSAPI_IPv4) { |
Christopher Haster |
94:644df37bb05b | 177 | ipv6_to_address(ip_address, _ip_bytes); |
Christopher Haster |
94:644df37bb05b | 178 | } |
Christopher Haster |
89:b1d417383c0d | 179 | } |
Christopher Haster |
94:644df37bb05b | 180 | |
Christopher Haster |
94:644df37bb05b | 181 | return ip_address; |
Christopher Haster |
94:644df37bb05b | 182 | } |
Christopher Haster |
94:644df37bb05b | 183 | |
Christopher Haster |
94:644df37bb05b | 184 | const void *SocketAddress::get_ip_bytes() const |
Christopher Haster |
94:644df37bb05b | 185 | { |
Christopher Haster |
94:644df37bb05b | 186 | return _ip_bytes; |
Christopher Haster |
94:644df37bb05b | 187 | } |
Christopher Haster |
94:644df37bb05b | 188 | |
Christopher Haster |
94:644df37bb05b | 189 | nsapi_version_t SocketAddress::get_ip_version() const |
Christopher Haster |
94:644df37bb05b | 190 | { |
Christopher Haster |
94:644df37bb05b | 191 | return _ip_version; |
Christopher Haster |
89:b1d417383c0d | 192 | } |
Christopher Haster |
89:b1d417383c0d | 193 | |
Christopher Haster |
89:b1d417383c0d | 194 | uint16_t SocketAddress::get_port() const |
Christopher Haster |
89:b1d417383c0d | 195 | { |
Christopher Haster |
89:b1d417383c0d | 196 | return _port; |
Christopher Haster |
89:b1d417383c0d | 197 | } |
Christopher Haster |
94:644df37bb05b | 198 | |
Christopher Haster |
94:644df37bb05b | 199 | SocketAddress::operator bool() const |
Christopher Haster |
94:644df37bb05b | 200 | { |
Christopher Haster |
94:644df37bb05b | 201 | int count = 0; |
Christopher Haster |
94:644df37bb05b | 202 | if (_ip_version == NSAPI_IPv4) { |
Christopher Haster |
94:644df37bb05b | 203 | count = NSAPI_IPv4_BYTES; |
Christopher Haster |
94:644df37bb05b | 204 | } else if (_ip_version == NSAPI_IPv6) { |
Christopher Haster |
94:644df37bb05b | 205 | count = NSAPI_IPv6_BYTES; |
Christopher Haster |
94:644df37bb05b | 206 | } |
Christopher Haster |
94:644df37bb05b | 207 | |
Christopher Haster |
94:644df37bb05b | 208 | for (int i = 0; i < count; i++) { |
Christopher Haster |
94:644df37bb05b | 209 | if (_ip_bytes[i]) { |
Christopher Haster |
94:644df37bb05b | 210 | return true; |
Christopher Haster |
94:644df37bb05b | 211 | } |
Christopher Haster |
94:644df37bb05b | 212 | } |
Christopher Haster |
94:644df37bb05b | 213 | |
Christopher Haster |
94:644df37bb05b | 214 | return false; |
Christopher Haster |
94:644df37bb05b | 215 | } |