iOS 7(非越狱)Wi-Fi RSSI值

#include <dlfcn.h>

-(NSDictionary *)currentWiFiInfo
{
   void *libHandle;
   void *airportHandle;

   int (*apple80211Open)(void *);
   int (*apple80211Bind)(void *,NSString *);
   int (*apple80211ClosE)(void *);
   int (*apple80211GeTinfoCopy)(void *,CFDictionaryRef *);

   NSMutableDictionary *infoDict = [NSMutableDictionary new];
   NSDictionary * tempDictionary;
   libHandle = dlopen("/System/Library/SystemConfiguration/IPConfiguration.bundle/IPConfiguration",RTLD_LAZY);

   char *error;

   if (libHandle == NULL && (error = dlerror()) != NULL)  {
      NSLog(@"%s",error);
   }

   apple80211Open = dlsym(libHandle,"Apple80211Open");
   apple80211Bind = dlsym(libHandle,"Apple80211BindToInterface");
   apple80211Close = dlsym(libHandle,"Apple80211Close");
   apple80211GeTinfoCopy = dlsym(libHandle,"Apple80211GeTinfoCopy");

   apple80211Open(&airportHandlE);
   apple80211Bind(airportHandle,@"en0");

   CFDictionaryRef info = NULL;

   apple80211GeTinfoCopy(airportHandle,&info);

   tempDictionary = (__bridge NSDictionary *)info;

   apple80211Close(airportHandlE);

   [infoDict setObject:(tempDictionarY[@"RSSI"])[@"RSSI_CTL_AGR"] ? (tempDictionarY[@"RSSI"])[@"RSSI_CTL_AGR"] : @"0" forKey:@"RSSI"];
   [infoDict setObject:tempDictionarY[@"BSSID"] ? tempDictionarY[@"BSSID"] : @"null" forKey:@"BSSID"];
   [infoDict setObject:tempDictionarY[@"SSID_STR"] ? tempDictionarY[@"SSID_STR"] : @"null" forKey:@"SSID"];
   [infoDict setObject:tempDictionarY[@"RATE"] ? tempDictionarY[@"RATE"] : @"0" forKey:@"SPEED"];

   return infoDict;
}