您可以使用wifi mac地址作为UDID的替代。获取mac地址的逻辑如下,您可以在支持iOS应用程序中使用它来获取mac地址。您可以使用MDM命令在服务器端获取wifi mac地址。
//.h文件
#import <Foundation/Foundation.h>
@interface MacAddress : NSObject
+ (NSString *)getMacAddress;
@end
//实现文件
#import "MacAddress.h"
#import <sys/socket.h>
#import <sys/sysctl.h>
#import <net/if.h>
#import <net/if_dl.h>
@implementation MacAddress
+ (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;
mgmtInfoBase[0] = CTL_NET;
mgmtInfoBase[1] = AF_ROUTE;
mgmtInfoBase[2] = 0;
mgmtInfoBase[3] = AF_LINK;
mgmtInfoBase[4] = NET_RT_IFLIST;
if ((mgmtInfoBase[5] = if_nametoindex("en0")) == 0)
errorFlag = @"if_nametoindex failure";
else
{
if (sysctl(mgmtInfoBase, 6, NULL, &length, NULL, 0) < 0)
errorFlag = @"sysctl mgmtInfoBase failure";
else
{
if ((msgBuffer = malloc(length)) == NULL)
errorFlag = @"buffer allocation failure";
else
{
if (sysctl(mgmtInfoBase, 6, msgBuffer, &length, NULL, 0) < 0)
errorFlag = @"sysctl msgBuffer failure";
}
}
}
if (errorFlag != NULL)
{
NSLog(@"Error: %@", errorFlag);
return errorFlag;
}
interfaceMsgStruct = (struct if_msghdr *) msgBuffer;
socketStruct = (struct sockaddr_dl *) (interfaceMsgStruct + 1);
memcpy(&macAddress, socketStruct->sdl_data + socketStruct->sdl_nlen, 6);
NSString *macAddressString = [NSString stringWithFormat:@"%02X:%02X:%02X:%02X:%02X:%02X",
macAddress[0], macAddress[1], macAddress[2],
macAddress[3], macAddress[4], macAddress[5]];
free(msgBuffer);
return macAddressString;
}
@end