获取设备的MAC地址以及IP地址获取设备的MAC地址以及IP地址

【获取设备的MAC地址以及IP地址】今天写项目的时候需要获取手机设备的MAC地址以及IP地址，网上看了很多文章，虽然有些都是大同小异，虽然不是很明白代码的意思，但是在demo中贴上代码却发现红色的报错，后来才知道是没有引用库文件，也给自己提了个醒，如果时间允许的情况下还是要仔细的研究一下是怎么实现的，虽然可以直接用，但是懂了总比一直借用的好。废话不多说，算是记录一下吧。
引用头文件

//用于获取mac地址 #include #include #include //用于获取ip地址 #import #include

获取IP地址

+ (NSString *)getIPAddress { NSString *address = @""; struct ifaddrs *interfaces = NULL; struct ifaddrs *temp_addr = NULL; int success = 0; // retrieve the current interfaces - returns 0 on success success = getifaddrs(&interfaces); if (success == 0) { // Loop through linked list of interfaces temp_addr = interfaces; while(temp_addr != NULL) { if(temp_addr->ifa_addr->sa_family == AF_INET) { // Check if interface is en0 which is the wifi connection on the iPhone if([[NSString stringWithUTF8String:temp_addr->ifa_name] isEqualToString:@"en0"]) { // Get NSString from C String address = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)]; } } temp_addr = temp_addr->ifa_next; } } // Free memory freeifaddrs(interfaces); return address; }

获取MAC地址

+ (NSString *)getMacAddress { intmgmtInfoBase[6]; char*msgBuffer = NULL; size_tlength; unsigned charmacAddress[6]; struct if_msghdr*interfaceMsgStruct; struct sockaddr_dl*socketStruct; NSString*errorFlag = NULL; // Setup the management Information Base (mib) mgmtInfoBase[0] = CTL_NET; // Request network subsystem mgmtInfoBase[1] = AF_ROUTE; // Routing table info mgmtInfoBase[2] = 0; mgmtInfoBase[3] = AF_LINK; // Request link layer information mgmtInfoBase[4] = NET_RT_IFLIST; // Request all configured interfaces// With all configured interfaces requested, get handle index if ((mgmtInfoBase[5] = if_nametoindex("en0")) == 0) errorFlag = @"if_nametoindex failure"; else { // Get the size of the data available (store in len) if (sysctl(mgmtInfoBase, 6, NULL, &length, NULL, 0) < 0) errorFlag = @"sysctl mgmtInfoBase failure"; else { // Alloc memory based on above call if ((msgBuffer = malloc(length)) == NULL) errorFlag = @"buffer allocation failure"; else { // Get system information, store in buffer if (sysctl(mgmtInfoBase, 6, msgBuffer, &length, NULL, 0) < 0) errorFlag = @"sysctl msgBuffer failure"; } } }// Befor going any further... if (errorFlag != NULL) { NSLog(@"Error: %@", errorFlag); return errorFlag; }// Map msgbuffer to interface message structure interfaceMsgStruct = (struct if_msghdr *) msgBuffer; // Map to link-level socket structure socketStruct = (struct sockaddr_dl *) (interfaceMsgStruct + 1); // Copy link layer address data in socket structure to an array memcpy(&macAddress, socketStruct->sdl_data + socketStruct->sdl_nlen, 6); // Read from char array into a string object, into traditional Mac address format NSString *macAddressString = [NSString stringWithFormat:@"%02x:%02x:%02x:%02x:%02x:%02x", macAddress[0], macAddress[1], macAddress[2], macAddress[3], macAddress[4], macAddress[5]]; NSLog(@"Mac Address: %@", macAddressString); // Release the buffer memory free(msgBuffer); return macAddressString; }

顺带说一下，获取设备的唯一标识符UDID现在苹果已经禁止了，所以很多都使用UUID来代替，但是会存在卸载或者更新等UUID改变的情况，所以想要保证UUID的唯一性可以使用keyChain来存储，这样获每次取到的就是唯一的了，除非你刷机（至于越狱是不是受影响我也没测试过）。
有需要的可以借鉴这篇文章： https://www.jianshu.com/p/faa4854ce180