iOS如何获取手机的Mac地址

首先说明下，下面两种方法均可以获得手机的mac地址，但是有个限制，是在iOS7以下才可以获得。iOS7以后苹果对于sysctl和ioctl进行了技术处理，MAC地址返回的都是02:00:00:00:00:00。

官方文档上这样写的：

"Twolow-level networking APIs that used to return a MAC address now return thefixed value 02:00:00:00:00:00. The APIs in question are sysctl(NET_RT_IFLIST) and ioctl(SIOCGIFCONF). Developers using the value of the MAC address should migrate toidentifiers such as -[UIDevice identifierForVendor].This change affects all apps running on iOS 7”。

所以在iOS7以后想要获取设备的唯一标示Mac地址已经不行了，只能用其他的代替。

下面说下两种方式：

都需要导入几个头文件

#include

#include

#include

方法1：

// Return the local MAC addy

// Courtesy of FreeBSD hackers email list

// Accidentally munged during previous update. Fixed thanks to mlamb.

- (NSString *) macaddress

{

int mib[6];

size_t len;

char *buf;

unsigned char *ptr;

struct if_msghdr *ifm;

struct sockaddr_dl *sdl;

mib[0] = CTL_NET;

mib[1] = AF_ROUTE;

mib[2] = 0;

mib[3] = AF_LINK;

mib[4] = NET_RT_IFLIST;

if ((mib[5] = if_nametoindex("en0")) == 0) {

printf("Error: if_nametoindex error/n");

return NULL;

}

if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) {

printf("Error: sysctl, take 1/n");

return NULL;

}

if ((buf = malloc(len)) == NULL) {

printf("Could not allocate memory. error!/n");

return NULL;

}

if (sysctl(mib, 6, buf, &len, NULL, 0) < 0) {

printf("Error: sysctl, take 2");

return NULL;

}

ifm = (struct if_msghdr *)buf;

sdl = (struct sockaddr_dl *)(ifm + 1);

ptr = (unsigned char *)LLADDR(sdl);

NSString *outstring = [NSString stringWithFormat:@"%02x:%02x:%02x:%02x:%02x:%02x", *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), *(ptr+5)];

// NSString *outstring = [NSString stringWithFormat:@"%02x%02x%02x%02x%02x%02x", *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), *(ptr+5)];

NSLog(@"outString:%@", outstring);

free(buf);

return [outstring uppercaseString];

}

方法2：

- (NSString *)getMacAddress

{

int mgmtInfoBase[6];

char *msgBuffer = NULL;

size_t length;

unsigned char macAddress[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;

}

以上就是iOS获取手机的Mac地址的两种方法，希望对大家的学习有所帮助。相关阅读:

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