在Mac|在Mac OSX中获取网卡MAC地址
今天在CocoaChina上看到有人发帖在询问如何在Mac OSX下获得网卡的物理地址，恰好最近在学习IOKit的一些知识，所以通过IOKit的接口肯定是可以很方便的拿到MAC地址信息的，但不知道还有没有其它更方便的API了，所以我姑且贴出一段通过IOKit去获得网卡MAC地址的代码：
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
kern_return_t kr;
CFMutableDictionaryRef matchDict;
io_iterator_t iterator;
io_registry_entry_t entry;
matchDict = IOServiceMatching("IOEthernetInterface");
kr = IOServiceGetMatchingServices(kIOMasterPortDefault, matchDict, &iterator);
NSDictionary *resultInfo = nil;
while ((entry = IOIteratorNext(iterator)) != 0)
{
CFMutableDictionaryRef properties=NULL;
kr = IORegistryEntryCreateCFProperties(entry,
&properties,
kCFAllocatorDefault,
kNilOptions);
if (properties)
{
resultInfo = (__bridge_transfer NSDictionary *)properties;
NSString *bsdName = [resultInfo objectForKey:@"BSD Name"];
NSData *macData = https://www.it610.com/article/[resultInfo objectForKey:@"IOMACAddress"];
if (!macData)
{
continue;
}NSMutableString *macAddress = [[NSMutableString alloc] init];
const UInt8 *bytes = [macData bytes];
for (int i=0;
i【在Mac|在Mac OSX中获取网卡MAC地址】同时可以通过iOS 获取网卡地址的方式获取网卡地址
+ (NSString *)currentMACAddress {
char addr[64];
intmib[6];
size_tlen;
charbuf[1024];
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 FALSE;
}if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) {
printf("Error: sysctl, take 1/n");
return FALSE;
}if (sysctl(mib, 6, buf, &len, NULL, 0) < 0) {
printf("Error: sysctl, take 2");
return FALSE;
}ifm = (struct if_msghdr *)buf;
sdl = (struct sockaddr_dl *)(ifm + 1);
ptr = (unsigned char *)LLADDR(sdl);
sprintf(addr, "%.2X:%.2X:%.2X:%.2X:%.2X:%.2X", *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), *(ptr+5));
NSString *macAddress = [[NSString alloc] initWithCString:addr encoding:NSASCIIStringEncoding];
return macAddress;
}
