xcode获取mac address

1，首先下载GetPrimaryMACAddress.c：http://files.cnblogs.com/files/MartinLi841538513/GetPrimaryMACAddress.c.zip

2，然后设置GetPrimaryMACAddress.c的Type为Objective-C Source，否则会出现头文件互相引用问题。

3，在你想要获取addres的地方，#include "GetPrimaryMACAddress.c"

并调用：

-(NSString *)macAddress{
    NSMutableString *macAddress = [NSMutableString new];
    kern_return_t    kernResult = KERN_SUCCESS;
    io_iterator_t    intfIterator;
    UInt8            MACAddress[kIOEthernetAddressSize];
    
    kernResult = FindEthernetInterfaces(&intfIterator);
    
    if (KERN_SUCCESS != kernResult) {
        printf("FindEthernetInterfaces returned 0x%08x
", kernResult);
    }
    else {
        kernResult = GetMACAddress(intfIterator, MACAddress, sizeof(MACAddress));
        
        if (KERN_SUCCESS != kernResult) {
            printf("GetMACAddress returned 0x%08x
", kernResult);
        }
        else {
            printf("This system's built-in MAC address is %02x:%02x:%02x:%02x:%02x:%02x.
",
                   MACAddress[0], MACAddress[1], MACAddress[2], MACAddress[3], MACAddress[4], MACAddress[5]);
        }
    }
    
    (void) IOObjectRelease(intfIterator);    // Release the iterator.
    [macAddress appendFormat:@"%hhu:",MACAddress[0]];
    [macAddress appendFormat:@"%hhu:",MACAddress[1]];
    [macAddress appendFormat:@"%hhu:",MACAddress[2]];
    [macAddress appendFormat:@"%hhu:",MACAddress[3]];
    [macAddress appendFormat:@"%hhu:",MACAddress[4]];
    [macAddress appendFormat:@"%hhu",MACAddress[5]];
    return macAddress;
}

然后，就会出来类似这样的macAddress:128:230:80:30:10:204 地址