大佬教程收集整理的这篇文章主要介绍了管理ifaddrs以及在Swift中返回MAC地址,大佬教程大佬觉得挺不错的,现在分享给大家,也给大家做个参考。
因此,不是将地址作为带有[ips]的数组返回,而是作为字典返回[ips:0000000,mac:000000]
是否可以通过更改以下代码(从How to get Ip address in swift开始)来实现?
func getIFAddresses() -> [String] { print("GET IF ADDRESSSE") var addresses = [String]() // Get list of all interfaces on the local machine: var ifaddr : UnsafeMutablePointer<ifaddrs> = nil if getifaddrs(&ifaddr) == 0 { print("getifaddrs\(getifaddrs)") // For each interface ... for (var ptr = ifaddr; ptr != nil; ptr = ptr.memory.ifa_next) { let flags = Int32(ptr.memory.ifa_flags) var addr = ptr.memory.ifa_addr.memory print("flags\(flags)") print("addr\(addr)") // check for running IPv4,IPv6 interfaces. Skip the loopBACk interface. if (flags & (IFF_UP|IFF_RUNNING|IFF_LOOPBACK)) == (IFF_UP|IFF_RUNNING) { if addr.sa_family == UInt8(AF_INET) || addr.sa_family == UInt8(AF_INET6) { print("addr.sa_family\(addr.sa_family)") // Convert interface address to a human readable String: var hostname = [CChar](count: Int(NI_MAXHOST),repeatedValue: 0) print("hostname\(hostName)") if (getnameinfo( &addr,socklen_t(addr.sa_len),&hostname,socklen_t(hostname.count),nil,socklen_t(0),NI_NUMERICHOST) == 0) { if let address = String.fromCString(hostName) { addresses.append(address) } } } } } freeifaddrs(ifaddr) print("freeifaddrs\(freeifaddrs)") } print("ADDRESSES \(addresses)") return addresses
}
这是返回的引用代码的扩展
本地(up和running)接口为
一个(接口@L_944_12@,IP地址,MAC地址)元组的数组.
从AF_LINK类型的接口检索MAC地址
它们在接口列表中存储为sockaddr_dl结构.
这是一个可变长度的结构,Swift的严格类型系统使一些指针杂乱成为必要.
重要提示:此代码适用于在Mac计算机上运行.
它无法在iOS设备上@L_847_2@mAC地址.
iOS有意将“02:00:00:00:00:00”作为硬件地址返回
出于隐私原因,请参阅所有接口,例如
Trouble with MAC address in iOS 7.0.2.)
func geTinterfaces() -> [(name : String,addr: String,mac : String)] { var addresses = [(name : 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),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 }
你必须添加
#include <ifaddrs.h> #include <net/if_dl.h>
到桥接头文件进行编译.
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Swift 3(Xcode 8):
func geTinterfaces() -> [(name : 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),NI_NUMERICHOST) == 0) { let address = String(cString: hostName) addresses.append( (name: name,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,mac : maC) } } return addresses }
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