NetworkSocketAPI
Base class for IP Based Networking Libraries
Dependencies: DnsQuery
Dependents: TempTower BSDInterfaceTests HelloBSDInterface ESP8266InterfaceTests ... more
For a complete getting started guide see the wiki...
Network Socket API
The Network Socket API provides a common interface for using sockets on network devices. The API provides a simple class-based interface that should be familiar to users experienced with other socket APIs. Additionally, the API provides a simple interface for implementing network devices, making it easy to connect hardware agnostic programs to new devices.
Network Interfaces
The NetworkInterface provides an abstract class for network devices that support sockets. Devices should provide a DeviceInterface class that inherits this interface and adds implementation specific methods for using the device. A NetworkInterface must be provided to a Socket constructor to open a socket on the interface. Currently two subclasses are defined for common devices, EthernetInterface and WiFiInterface.
Sockets
The Socket class is used for managing network sockets. Once opened, the socket provides a pipe through which data can sent and recieved to a specific endpoint. The socket class can be instantiated as either a TCPSocket or a UDPSocket which defines the protocol used for the connection.
SocketAddress.cpp@111:df01ca3e89b3, 2016-04-20 (annotated)
- Committer:
- Christopher Haster
- Date:
- Wed Apr 20 02:56:07 2016 -0500
- Revision:
- 111:df01ca3e89b3
- Parent:
- 105:2fd212f8da61
- Child:
- 120:6eb542426f15
Add workaround for bug in newlib scanf
https://bugs.launchpad.net/gcc-arm-embedded/+bug/1399224
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 |
105:2fd212f8da61 | 18 | #include "NetworkStack.h" |
| Christopher Haster |
89:b1d417383c0d | 19 | #include <string.h> |
| Christopher Haster |
89:b1d417383c0d | 20 | #include "mbed.h" |
| Christopher Haster |
89:b1d417383c0d | 21 | |
| Christopher Haster |
100:90d8f662de83 | 22 | |
| Christopher Haster |
100:90d8f662de83 | 23 | static bool ipv4_is_valid(const char *addr) |
| Christopher Haster |
94:644df37bb05b | 24 | { |
| Christopher Haster |
94:644df37bb05b | 25 | int i = 0; |
| Christopher Haster |
94:644df37bb05b | 26 | |
| Christopher Haster |
94:644df37bb05b | 27 | // Check each digit for [0-9.] |
| Christopher Haster |
94:644df37bb05b | 28 | for (; addr[i]; i++) { |
| Christopher Haster |
94:644df37bb05b | 29 | if (!(addr[i] >= '0' && addr[i] <= '9') && addr[i] != '.') { |
| Christopher Haster |
94:644df37bb05b | 30 | return false; |
| Christopher Haster |
94:644df37bb05b | 31 | } |
| Christopher Haster |
94:644df37bb05b | 32 | } |
| Christopher Haster |
94:644df37bb05b | 33 | |
| Christopher Haster |
94:644df37bb05b | 34 | // Ending with '.' garuntees host |
| Christopher Haster |
94:644df37bb05b | 35 | if (i > 0 && addr[i-1] == '.') { |
| Christopher Haster |
94:644df37bb05b | 36 | return false; |
| Christopher Haster |
94:644df37bb05b | 37 | } |
| Christopher Haster |
94:644df37bb05b | 38 | |
| Christopher Haster |
94:644df37bb05b | 39 | return true; |
| Christopher Haster |
94:644df37bb05b | 40 | } |
| Christopher Haster |
94:644df37bb05b | 41 | |
| Christopher Haster |
100:90d8f662de83 | 42 | static bool ipv6_is_valid(const char *addr) |
| Christopher Haster |
94:644df37bb05b | 43 | { |
| Christopher Haster |
94:644df37bb05b | 44 | // Check each digit for [0-9a-fA-F:] |
| Christopher Haster |
94:644df37bb05b | 45 | for (int i = 0; addr[i]; i++) { |
| Christopher Haster |
94:644df37bb05b | 46 | if (!(addr[i] >= '0' && addr[i] <= '9') && |
| Christopher Haster |
94:644df37bb05b | 47 | !(addr[i] >= 'a' && addr[i] <= 'f') && |
| Christopher Haster |
94:644df37bb05b | 48 | !(addr[i] >= 'A' && addr[i] <= 'F') && |
| Christopher Haster |
94:644df37bb05b | 49 | addr[i] != ':') { |
| Christopher Haster |
94:644df37bb05b | 50 | return false; |
| Christopher Haster |
94:644df37bb05b | 51 | } |
| Christopher Haster |
94:644df37bb05b | 52 | } |
| Christopher Haster |
94:644df37bb05b | 53 | |
| Christopher Haster |
94:644df37bb05b | 54 | return true; |
| Christopher Haster |
94:644df37bb05b | 55 | } |
| Christopher Haster |
94:644df37bb05b | 56 | |
| Christopher Haster |
100:90d8f662de83 | 57 | static void ipv4_from_address(uint8_t *bytes, const char *addr) |
| Christopher Haster |
94:644df37bb05b | 58 | { |
| Christopher Haster |
111:df01ca3e89b3 | 59 | int count = 0; |
| Christopher Haster |
111:df01ca3e89b3 | 60 | int i = 0; |
| Christopher Haster |
111:df01ca3e89b3 | 61 | |
| Christopher Haster |
111:df01ca3e89b3 | 62 | for (; count < NSAPI_IPv4_BYTES; count++) { |
| Christopher Haster |
111:df01ca3e89b3 | 63 | int scanned = sscanf(&addr[i], "%hhu", &bytes[count]); |
| Christopher Haster |
111:df01ca3e89b3 | 64 | if (scanned < 1) { |
| Christopher Haster |
111:df01ca3e89b3 | 65 | return; |
| Christopher Haster |
111:df01ca3e89b3 | 66 | } |
| Christopher Haster |
111:df01ca3e89b3 | 67 | |
| Christopher Haster |
111:df01ca3e89b3 | 68 | for (; addr[i] != '.'; i++) { |
| Christopher Haster |
111:df01ca3e89b3 | 69 | if (!addr[i]) { |
| Christopher Haster |
111:df01ca3e89b3 | 70 | return; |
| Christopher Haster |
111:df01ca3e89b3 | 71 | } |
| Christopher Haster |
111:df01ca3e89b3 | 72 | } |
| Christopher Haster |
111:df01ca3e89b3 | 73 | |
| Christopher Haster |
111:df01ca3e89b3 | 74 | i++; |
| Christopher Haster |
111:df01ca3e89b3 | 75 | } |
| Christopher Haster |
94:644df37bb05b | 76 | } |
| Christopher Haster |
94:644df37bb05b | 77 | |
| Christopher Haster |
100:90d8f662de83 | 78 | static int ipv6_scan_chunk(uint16_t *shorts, const char *chunk) { |
| Christopher Haster |
100:90d8f662de83 | 79 | int count = 0; |
| Christopher Haster |
100:90d8f662de83 | 80 | int i = 0; |
| Christopher Haster |
100:90d8f662de83 | 81 | |
| Christopher Haster |
100:90d8f662de83 | 82 | for (; count < NSAPI_IPv6_BYTES/2; count++) { |
| Christopher Haster |
100:90d8f662de83 | 83 | int scanned = sscanf(&chunk[i], "%hx", &shorts[count]); |
| Christopher Haster |
100:90d8f662de83 | 84 | if (scanned < 1) { |
| Christopher Haster |
100:90d8f662de83 | 85 | return count; |
| Christopher Haster |
100:90d8f662de83 | 86 | } |
| Christopher Haster |
100:90d8f662de83 | 87 | |
| Christopher Haster |
100:90d8f662de83 | 88 | for (; chunk[i] != ':'; i++) { |
| Christopher Haster |
100:90d8f662de83 | 89 | if (!chunk[i]) { |
| Christopher Haster |
100:90d8f662de83 | 90 | return count+1; |
| Christopher Haster |
100:90d8f662de83 | 91 | } |
| Christopher Haster |
100:90d8f662de83 | 92 | } |
| Christopher Haster |
100:90d8f662de83 | 93 | |
| Christopher Haster |
100:90d8f662de83 | 94 | i++; |
| Christopher Haster |
100:90d8f662de83 | 95 | } |
| Christopher Haster |
100:90d8f662de83 | 96 | |
| Christopher Haster |
100:90d8f662de83 | 97 | return count; |
| Christopher Haster |
100:90d8f662de83 | 98 | } |
| Christopher Haster |
100:90d8f662de83 | 99 | |
| Christopher Haster |
100:90d8f662de83 | 100 | static void ipv6_from_address(uint8_t *bytes, const char *addr) |
| Christopher Haster |
94:644df37bb05b | 101 | { |
| Christopher Haster |
100:90d8f662de83 | 102 | // Start with zeroed address |
| Christopher Haster |
94:644df37bb05b | 103 | uint16_t shorts[NSAPI_IPv6_BYTES/2]; |
| Christopher Haster |
100:90d8f662de83 | 104 | memset(shorts, 0, sizeof shorts); |
| Christopher Haster |
100:90d8f662de83 | 105 | |
| Christopher Haster |
100:90d8f662de83 | 106 | int suffix = 0; |
| Christopher Haster |
94:644df37bb05b | 107 | |
| Christopher Haster |
100:90d8f662de83 | 108 | // Find double colons and scan suffix |
| Christopher Haster |
100:90d8f662de83 | 109 | for (int i = 0; addr[i]; i++) { |
| Christopher Haster |
100:90d8f662de83 | 110 | if (addr[i] == ':' && addr[i+1] == ':') { |
| Christopher Haster |
100:90d8f662de83 | 111 | suffix = ipv6_scan_chunk(shorts, &addr[i+2]); |
| Christopher Haster |
100:90d8f662de83 | 112 | break; |
| Christopher Haster |
100:90d8f662de83 | 113 | } |
| Christopher Haster |
100:90d8f662de83 | 114 | } |
| Christopher Haster |
100:90d8f662de83 | 115 | |
| Christopher Haster |
100:90d8f662de83 | 116 | // Move suffix to end |
| Christopher Haster |
100:90d8f662de83 | 117 | memmove(&shorts[NSAPI_IPv6_BYTES/2-suffix], &shorts[0], |
| Christopher Haster |
100:90d8f662de83 | 118 | suffix*sizeof(uint16_t)); |
| Christopher Haster |
100:90d8f662de83 | 119 | |
| Christopher Haster |
100:90d8f662de83 | 120 | // Scan prefix |
| Christopher Haster |
100:90d8f662de83 | 121 | ipv6_scan_chunk(shorts, &addr[0]); |
| Christopher Haster |
100:90d8f662de83 | 122 | |
| Christopher Haster |
100:90d8f662de83 | 123 | // Flip bytes |
| Christopher Haster |
94:644df37bb05b | 124 | for (int i = 0; i < NSAPI_IPv6_BYTES/2; i++) { |
| Christopher Haster |
94:644df37bb05b | 125 | bytes[2*i+0] = (uint8_t)(shorts[i] >> 8); |
| Christopher Haster |
94:644df37bb05b | 126 | bytes[2*i+1] = (uint8_t)(shorts[i] >> 0); |
| Christopher Haster |
94:644df37bb05b | 127 | } |
| Christopher Haster |
94:644df37bb05b | 128 | } |
| Christopher Haster |
94:644df37bb05b | 129 | |
| Christopher Haster |
94:644df37bb05b | 130 | static void ipv4_to_address(char *addr, const uint8_t *bytes) |
| Christopher Haster |
94:644df37bb05b | 131 | { |
| Christopher Haster |
94:644df37bb05b | 132 | sprintf(addr, "%d.%d.%d.%d", bytes[0], bytes[1], bytes[2], bytes[3]); |
| Christopher Haster |
94:644df37bb05b | 133 | } |
| Christopher Haster |
94:644df37bb05b | 134 | |
| Christopher Haster |
94:644df37bb05b | 135 | static void ipv6_to_address(char *addr, const uint8_t *bytes) |
| Christopher Haster |
94:644df37bb05b | 136 | { |
| Christopher Haster |
100:90d8f662de83 | 137 | for (int i = 0; i < NSAPI_IPv6_BYTES/2; i++) { |
| Christopher Haster |
100:90d8f662de83 | 138 | sprintf(&addr[5*i], "%02x%02x", bytes[2*i], bytes[2*i+1]); |
| Christopher Haster |
100:90d8f662de83 | 139 | addr[5*i+4] = ':'; |
| Christopher Haster |
100:90d8f662de83 | 140 | } |
| Christopher Haster |
100:90d8f662de83 | 141 | addr[NSAPI_IPv6_SIZE-1] = '\0'; |
| Christopher Haster |
100:90d8f662de83 | 142 | } |
| Christopher Haster |
97:68232387bc75 | 143 | |
| Christopher Haster |
94:644df37bb05b | 144 | |
| Christopher Haster |
105:2fd212f8da61 | 145 | SocketAddress::SocketAddress(NetworkStack *iface, const char *host, uint16_t port) |
| Christopher Haster |
89:b1d417383c0d | 146 | { |
| Christopher Haster |
94:644df37bb05b | 147 | // Check for valid IP addresses |
| Christopher Haster |
100:90d8f662de83 | 148 | if (host && ipv4_is_valid(host)) { |
| Christopher Haster |
94:644df37bb05b | 149 | _ip_version = NSAPI_IPv4; |
| Christopher Haster |
100:90d8f662de83 | 150 | ipv4_from_address(_ip_bytes, host); |
| Christopher Haster |
100:90d8f662de83 | 151 | } else if (host && ipv6_is_valid(host)) { |
| Christopher Haster |
94:644df37bb05b | 152 | _ip_version = NSAPI_IPv6; |
| Christopher Haster |
100:90d8f662de83 | 153 | ipv4_from_address(_ip_bytes, host); |
| Christopher Haster |
94:644df37bb05b | 154 | } else { |
| Christopher Haster |
94:644df37bb05b | 155 | // DNS lookup |
| Christopher Haster |
95:b3c679f20d13 | 156 | int err = iface->gethostbyname(this, host); |
| Christopher Haster |
94:644df37bb05b | 157 | if (!err) { |
| Christopher Haster |
94:644df37bb05b | 158 | set_port(port); |
| Christopher Haster |
94:644df37bb05b | 159 | } else { |
| Christopher Haster |
94:644df37bb05b | 160 | _ip_version = NSAPI_IPv4; |
| Christopher Haster |
94:644df37bb05b | 161 | memset(_ip_bytes, 0, NSAPI_IPv4_BYTES); |
| Christopher Haster |
94:644df37bb05b | 162 | set_port(0); |
| Christopher Haster |
94:644df37bb05b | 163 | } |
| Christopher Haster |
89:b1d417383c0d | 164 | } |
| Christopher Haster |
89:b1d417383c0d | 165 | } |
| Christopher Haster |
89:b1d417383c0d | 166 | |
| Christopher Haster |
89:b1d417383c0d | 167 | SocketAddress::SocketAddress(const char *addr, uint16_t port) |
| Christopher Haster |
89:b1d417383c0d | 168 | { |
| Christopher Haster |
89:b1d417383c0d | 169 | set_ip_address(addr); |
| Christopher Haster |
89:b1d417383c0d | 170 | set_port(port); |
| Christopher Haster |
89:b1d417383c0d | 171 | } |
| Christopher Haster |
89:b1d417383c0d | 172 | |
| Christopher Haster |
94:644df37bb05b | 173 | SocketAddress::SocketAddress(const void *bytes, nsapi_version_t version, uint16_t port) |
| Christopher Haster |
94:644df37bb05b | 174 | { |
| Christopher Haster |
94:644df37bb05b | 175 | set_ip_bytes(bytes, version); |
| Christopher Haster |
94:644df37bb05b | 176 | set_port(port); |
| Christopher Haster |
94:644df37bb05b | 177 | } |
| Christopher Haster |
94:644df37bb05b | 178 | |
| Christopher Haster |
89:b1d417383c0d | 179 | SocketAddress::SocketAddress(const SocketAddress &addr) |
| Christopher Haster |
89:b1d417383c0d | 180 | { |
| Christopher Haster |
94:644df37bb05b | 181 | set_ip_bytes(addr.get_ip_bytes(), addr.get_ip_version()); |
| Christopher Haster |
89:b1d417383c0d | 182 | set_port(addr.get_port()); |
| Christopher Haster |
89:b1d417383c0d | 183 | } |
| Christopher Haster |
89:b1d417383c0d | 184 | |
| Christopher Haster |
89:b1d417383c0d | 185 | void SocketAddress::set_ip_address(const char *addr) |
| Christopher Haster |
89:b1d417383c0d | 186 | { |
| Christopher Haster |
94:644df37bb05b | 187 | _ip_address[0] = '\0'; |
| Christopher Haster |
94:644df37bb05b | 188 | |
| Christopher Haster |
100:90d8f662de83 | 189 | if (addr && ipv4_is_valid(addr)) { |
| Christopher Haster |
94:644df37bb05b | 190 | _ip_version = NSAPI_IPv4; |
| Christopher Haster |
100:90d8f662de83 | 191 | ipv4_from_address(_ip_bytes, addr); |
| Christopher Haster |
100:90d8f662de83 | 192 | } else if (addr && ipv6_is_valid(addr)) { |
| Christopher Haster |
94:644df37bb05b | 193 | _ip_version = NSAPI_IPv6; |
| Christopher Haster |
100:90d8f662de83 | 194 | ipv6_from_address(_ip_bytes, addr); |
| Christopher Haster |
94:644df37bb05b | 195 | } else { |
| Christopher Haster |
94:644df37bb05b | 196 | _ip_version = NSAPI_IPv4; |
| Christopher Haster |
94:644df37bb05b | 197 | memset(_ip_bytes, 0, NSAPI_IPv4_BYTES); |
| Christopher Haster |
94:644df37bb05b | 198 | } |
| Christopher Haster |
94:644df37bb05b | 199 | } |
| Christopher Haster |
94:644df37bb05b | 200 | |
| Christopher Haster |
94:644df37bb05b | 201 | void SocketAddress::set_ip_bytes(const void *bytes, nsapi_version_t version) |
| Christopher Haster |
94:644df37bb05b | 202 | { |
| Christopher Haster |
94:644df37bb05b | 203 | _ip_address[0] = '\0'; |
| Christopher Haster |
94:644df37bb05b | 204 | |
| Christopher Haster |
94:644df37bb05b | 205 | if (_ip_version == NSAPI_IPv4) { |
| Christopher Haster |
94:644df37bb05b | 206 | _ip_version = NSAPI_IPv4; |
| Christopher Haster |
94:644df37bb05b | 207 | memcpy(_ip_bytes, bytes, NSAPI_IPv4_BYTES); |
| Christopher Haster |
94:644df37bb05b | 208 | } else if (_ip_version == NSAPI_IPv6) { |
| Christopher Haster |
94:644df37bb05b | 209 | _ip_version = NSAPI_IPv6; |
| Christopher Haster |
94:644df37bb05b | 210 | memcpy(_ip_bytes, bytes, NSAPI_IPv6_BYTES); |
| Christopher Haster |
94:644df37bb05b | 211 | } else { |
| Christopher Haster |
94:644df37bb05b | 212 | _ip_version = NSAPI_IPv4; |
| Christopher Haster |
94:644df37bb05b | 213 | memset(_ip_bytes, 0, NSAPI_IPv4_BYTES); |
| Christopher Haster |
94:644df37bb05b | 214 | } |
| Christopher Haster |
89:b1d417383c0d | 215 | } |
| Christopher Haster |
89:b1d417383c0d | 216 | |
| Christopher Haster |
89:b1d417383c0d | 217 | void SocketAddress::set_port(uint16_t port) |
| Christopher Haster |
89:b1d417383c0d | 218 | { |
| Christopher Haster |
89:b1d417383c0d | 219 | _port = port; |
| Christopher Haster |
89:b1d417383c0d | 220 | } |
| Christopher Haster |
89:b1d417383c0d | 221 | |
| Christopher Haster |
89:b1d417383c0d | 222 | const char *SocketAddress::get_ip_address() const |
| Christopher Haster |
89:b1d417383c0d | 223 | { |
| Christopher Haster |
94:644df37bb05b | 224 | char *ip_address = (char *)_ip_address; |
| Christopher Haster |
94:644df37bb05b | 225 | |
| Christopher Haster |
94:644df37bb05b | 226 | if (!ip_address[0]) { |
| Christopher Haster |
94:644df37bb05b | 227 | if (_ip_version == NSAPI_IPv4) { |
| Christopher Haster |
94:644df37bb05b | 228 | ipv4_to_address(ip_address, _ip_bytes); |
| Christopher Haster |
97:68232387bc75 | 229 | } else if (_ip_version == NSAPI_IPv6) { |
| Christopher Haster |
94:644df37bb05b | 230 | ipv6_to_address(ip_address, _ip_bytes); |
| Christopher Haster |
94:644df37bb05b | 231 | } |
| Christopher Haster |
89:b1d417383c0d | 232 | } |
| Christopher Haster |
94:644df37bb05b | 233 | |
| Christopher Haster |
94:644df37bb05b | 234 | return ip_address; |
| Christopher Haster |
94:644df37bb05b | 235 | } |
| Christopher Haster |
94:644df37bb05b | 236 | |
| Christopher Haster |
94:644df37bb05b | 237 | const void *SocketAddress::get_ip_bytes() const |
| Christopher Haster |
94:644df37bb05b | 238 | { |
| Christopher Haster |
94:644df37bb05b | 239 | return _ip_bytes; |
| Christopher Haster |
94:644df37bb05b | 240 | } |
| Christopher Haster |
94:644df37bb05b | 241 | |
| Christopher Haster |
94:644df37bb05b | 242 | nsapi_version_t SocketAddress::get_ip_version() const |
| Christopher Haster |
94:644df37bb05b | 243 | { |
| Christopher Haster |
94:644df37bb05b | 244 | return _ip_version; |
| Christopher Haster |
89:b1d417383c0d | 245 | } |
| Christopher Haster |
89:b1d417383c0d | 246 | |
| Christopher Haster |
89:b1d417383c0d | 247 | uint16_t SocketAddress::get_port() const |
| Christopher Haster |
89:b1d417383c0d | 248 | { |
| Christopher Haster |
89:b1d417383c0d | 249 | return _port; |
| Christopher Haster |
89:b1d417383c0d | 250 | } |
| Christopher Haster |
94:644df37bb05b | 251 | |
| Christopher Haster |
94:644df37bb05b | 252 | SocketAddress::operator bool() const |
| Christopher Haster |
94:644df37bb05b | 253 | { |
| Christopher Haster |
94:644df37bb05b | 254 | int count = 0; |
| Christopher Haster |
94:644df37bb05b | 255 | if (_ip_version == NSAPI_IPv4) { |
| Christopher Haster |
94:644df37bb05b | 256 | count = NSAPI_IPv4_BYTES; |
| Christopher Haster |
94:644df37bb05b | 257 | } else if (_ip_version == NSAPI_IPv6) { |
| Christopher Haster |
94:644df37bb05b | 258 | count = NSAPI_IPv6_BYTES; |
| Christopher Haster |
94:644df37bb05b | 259 | } |
| Christopher Haster |
94:644df37bb05b | 260 | |
| Christopher Haster |
94:644df37bb05b | 261 | for (int i = 0; i < count; i++) { |
| Christopher Haster |
94:644df37bb05b | 262 | if (_ip_bytes[i]) { |
| Christopher Haster |
94:644df37bb05b | 263 | return true; |
| Christopher Haster |
94:644df37bb05b | 264 | } |
| Christopher Haster |
94:644df37bb05b | 265 | } |
| Christopher Haster |
94:644df37bb05b | 266 | |
| Christopher Haster |
94:644df37bb05b | 267 | return false; |
| Christopher Haster |
94:644df37bb05b | 268 | } |