（備註/澄清：這是一個問題的答案「管理ifaddrs返回MAC斯威夫特地址以及」和「是否有可能修改代碼從How to get Ip address in swift返回MAC地址，以及」 這不是解決‘檢索所有連接到我的路由器’ 這也是在這個問題身體中提到的IP地址。）
下面是參考代碼的擴展，它返回 本地（啓動和運行）接口作爲 的（接口名稱，IP地址，MAC地址）元組的陣列。 MAC地址從類型AF_LINK 的接口中檢索，這些接口在接口列表中存儲爲sockaddr_dl結構。 這是一個可變長度的結構，而Swift的嚴格類型系統使得一些指針玩雜耍是必要的。
重要提示：此代碼旨在運行在Mac電腦上。 無法獲取iOS設備上的MAC地址。 的iOS 故意返回 「02：00：00：00：00：00」 作爲隱私的原因所有接口的硬件地址 ，例如參見 Trouble with MAC address in iOS 7.0.2）
func getInterfaces() -> [(name : String, addr: String, mac : String)] {
var addresses = [(name : String, addr: String, mac : String)]()
var nameToMac = [ String : String ]()
// Get list of all interfaces on the local machine:
var ifaddr : UnsafeMutablePointer<ifaddrs> = nil
if getifaddrs(&ifaddr) == 0 {
// For each interface ...
var ptr = ifaddr
while ptr != nil {
defer { ptr = ptr.memory.ifa_next }
let flags = Int32(ptr.memory.ifa_flags)
let addr = ptr.memory.ifa_addr
if let name = String.fromCString(ptr.memory.ifa_name) {
// Check for running IPv4, IPv6 interfaces. Skip the loopback interface.
if (flags & (IFF_UP|IFF_RUNNING|IFF_LOOPBACK)) == (IFF_UP|IFF_RUNNING) {
if addr.memory.sa_family == UInt8(AF_LINK) {
// Get MAC address from sockaddr_dl structure and store in nameToMac dictionary:
let dl = UnsafePointer<sockaddr_dl>(ptr.memory.ifa_addr)
let lladdr = UnsafeBufferPointer(start: UnsafePointer<Int8>(dl) + 8 + Int(dl.memory.sdl_nlen),
count: Int(dl.memory.sdl_alen))
if lladdr.count == 6 {
nameToMac[name] = lladdr.map { String(format:"%02hhx", $0)}.joinWithSeparator(":")
}
}
if addr.memory.sa_family == UInt8(AF_INET) || addr.memory.sa_family == UInt8(AF_INET6) {
// Convert interface address to a human readable string:
var hostname = [CChar](count: Int(NI_MAXHOST), repeatedValue: 0)
if (getnameinfo(addr, socklen_t(addr.memory.sa_len), &hostname, socklen_t(hostname.count),
nil, socklen_t(0), NI_NUMERICHOST) == 0) {
if let address = String.fromCString(hostname) {
addresses.append((name: name, addr: address, mac : ""))
}
}
}
}
}
}
freeifaddrs(ifaddr)
}
// Now add the mac address to the tuples:
for (i, addr) in addresses.enumerate() {
if let mac = nameToMac[addr.name] {
addresses[i] = (name: addr.name, addr: addr.addr, mac : mac)
}
}
return addresses
}
你必須添加
。
#include <ifaddrs.h>
#include <net/if_dl.h>
到橋接頭文件進行編譯。
用法示例：
for addr in getInterfaces() {
print(addr)
}
// ("en0", "fe80::1234:7fff:fe2e:8765%en0", "a9:55:6f:2e:57:78")
// ("en0", "192.168.2.108", "a9:55:6f:2e:57:78")
// ...
更新斯威夫特3（Xcode中8）：
func getInterfaces() -> [(name : String, addr: String, mac : String)] {
var addresses = [(name : String, addr: String, mac : String)]()
var nameToMac = [ String: String ]()
// Get list of all interfaces on the local machine:
var ifaddr : UnsafeMutablePointer<ifaddrs>?
guard getifaddrs(&ifaddr) == 0 else { return [] }
guard let firstAddr = ifaddr else { return [] }
// For each interface ...
for ptr in sequence(first: firstAddr, next: { $0.pointee.ifa_next }) {
let flags = Int32(ptr.pointee.ifa_flags)
if let addr = ptr.pointee.ifa_addr {
let name = String(cString: ptr.pointee.ifa_name)
// Check for running IPv4, IPv6 interfaces. Skip the loopback interface.
if (flags & (IFF_UP|IFF_RUNNING|IFF_LOOPBACK)) == (IFF_UP|IFF_RUNNING) {
switch Int32(addr.pointee.sa_family) {
case AF_LINK:
// Get MAC address from sockaddr_dl structure and store in nameToMac dictionary:
addr.withMemoryRebound(to: sockaddr_dl.self, capacity: 1) { dl in
dl.withMemoryRebound(to: Int8.self, capacity: 8 + Int(dl.pointee.sdl_nlen + dl.pointee.sdl_alen)) {
let lladdr = UnsafeBufferPointer(start: $0 + 8 + Int(dl.pointee.sdl_nlen),
count: Int(dl.pointee.sdl_alen))
if lladdr.count == 6 {
nameToMac[name] = lladdr.map { String(format:"%02hhx", $0)}.joined(separator: ":")
}
}
}
case AF_INET, AF_INET6:
// Convert interface address to a human readable string:
var hostname = [CChar](repeating: 0, count: Int(NI_MAXHOST))
if (getnameinfo(addr, socklen_t(addr.pointee.sa_len),
&hostname, socklen_t(hostname.count),
nil, socklen_t(0), NI_NUMERICHOST) == 0) {
let address = String(cString: hostname)
addresses.append((name: name, addr: address, mac : ""))
}
default:
break
}
}
}
}
freeifaddrs(ifaddr)
// Now add the mac address to the tuples:
for (i, addr) in addresses.enumerated() {
if let mac = nameToMac[addr.name] {
addresses[i] = (name: addr.name, addr: addr.addr, mac : mac)
}
}
return addresses
}
你試過嗎？代碼是否工作？如果不是什麼問題？ – zaph
@DanBeaulieu你是正確的，我正在刪除評論。我應該知道，比試圖解釋爲什麼通常不推薦反對選票更好。是的，我已將我的答案複製並用作另一個問題的答案。 – zaph