适配器名称取决于模拟器/设备以及设备上的wifi或单元.
@abc:我建议你发布另一个问题.最好把它埋在一个不同问题的评论中.
2> ArtFeel..：
更新:这在iOS 7上不起作用.您应该使用ASIdentifierManager.
MobileDeveloperTips网站上更干净的解决方案:
#include
#include
#include
#include
...
- (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;
}
这在iOS7的iPhone5上无效.它给了我:02:00:00:00:00:00这是不对的.
@Brenden你不能再使用iOS7上的PublicAPI获取网络MAC地址了.因此,如果您需要唯一ID,则应使用`IdentifierManager`
@SjoerdPerfors在iOS 7下,您确实总会得到相同的地址`02:00:00:00:00:00`作为Apple的隐私预防措施.
3> shipmaster..：
无论是否启用了wifi,我都希望返回地址,因此所选择的解决方案对我不起作用.经过一些调整,我在一些论坛上找到了另一个电话.我最终得到了以下内容(原谅我生锈的C):
#include
#include
#include
#include
#include
#include
char* getMacAddress(char* macAddress, char* ifName) {
int success;
struct ifaddrs * addrs;
struct ifaddrs * cursor;
const struct sockaddr_dl * dlAddr;
const unsigned char* base;
int i;
success = getifaddrs(&addrs) == 0;
if (success) {
cursor = addrs;
while (cursor != 0) {
if ( (cursor->ifa_addr->sa_family == AF_LINK)
&& (((const struct sockaddr_dl *) cursor->ifa_addr)->sdl_type == IFT_ETHER) && strcmp(ifName, cursor->ifa_name)==0 ) {
dlAddr = (const struct sockaddr_dl *) cursor->ifa_addr;
base = (const unsigned char*) &dlAddr->sdl_data[dlAddr->sdl_nlen];
strcpy(macAddress, "");
for (i = 0; i < dlAddr->sdl_alen; i++) {
if (i != 0) {
strcat(macAddress, ":");
}
char partialAddr[3];
sprintf(partialAddr, "%02X", base[i]);
strcat(macAddress, partialAddr);
}
}
cursor = cursor->ifa_next;
}
freeifaddrs(addrs);
}
return macAddress;
}
然后我会称它为en0,如下所示:
char* macAddressString= (char*)malloc(18);
NSString* macAddress= [[NSString alloc] initWithCString:getMacAddress(macAddressString, "en0")
encoding:NSMacOSRomanStringEncoding];
free(macAddressString);
我不得不添加#define IFT_ETHER 0x6
要清楚,代码本身不会泄漏,评论者在最后谈论调用片段,在那里我分配两个字符串而不释放它们.
4> Hejazi..：
从iOS 7开始,02:00:00:00:00:00当您在任何设备上请求MAC地址时,系统始终返回该值.
在iOS 7及更高版本中,如果您要求提供iOS设备的MAC地址,系统将返回值02:00:00:00:00:00.如果需要识别设备,请改用UIDevice的identifierForVendor属性.(需要为自己的广告目的使用标识符的应用应考虑使用ASIdentifierManager的advertisingIdentifier属性.)"
参考:释放说明
5> Kenial..：
关于这一点有不同的解决方案,但我找不到整件事.所以我自己做了一个解决方案:
nicinfo
如何使用 :
NICInfoSummary* summary = [[[NICInfoSummary alloc] init] autorelease];
// en0 is for WiFi
NICInfo* wifi_info = [summary findNICInfo:@"en0"];
// you can get mac address in 'XX-XX-XX-XX-XX-XX' form
NSString* mac_address = [wifi_info getMacAddressWithSeparator:@"-"];
// ip can be multiple
if(wifi_info.nicIPInfos.count > 0)
{
NICIPInfo* ip_info = [wifi_info.nicIPInfos objectAtIndex:0];
NSString* ip = ip_info.ip;
NSString* netmask = ip_info.netmask;
NSString* broadcast_ip = ip_info.broadcastIP;
}
else
{
NSLog(@"WiFi not connected!");
}
6> Grantland Ch..：
这看起来非常干净:UIDevice BIdentifier
// Return the local MAC addy
// Courtesy of FreeBSD hackers email list
// Accidentally munged during previous update. Fixed thanks to erica sadun & 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");
free(buf);
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)];
free(buf);
return outstring;
}
7> Jøhn Nârrøw..：
现在iOS 7设备 - 总是返回02:00:00:00:00:00的MAC地址.
所以最好使用[UIDevice identifierForVendor].
所以最好调用此方法来获取应用程序特定的唯一键
类别会更合适
导入"UIDevice + Identifier.h"
- (NSString *) identifierForVendor1
{
if ([[UIDevice currentDevice] respondsToSelector:@selector(identifierForVendor)]) {
return [[[UIDevice currentDevice] identifierForVendor] UUIDString];
}
return @"";
}
现在调用上面的方法来获取唯一的地址
NSString *like_UDID=[NSString stringWithFormat:@"%@",
[[UIDevice currentDevice] identifierForVendor1]];
NSLog(@"%@",like_UDID);
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