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#include <dlfcn.h>

#define PRIVATE_PATH  "/System/Library/PrivateFrameworks/CoreTelephony.framework/CoreTelephony"



- void getImsi(){


#if !TARGET_IPHONE_SIMULATOR
    void *kit = dlopen(PRIVATE_PATH,RTLD_LAZY);    
    NSString *imsi = nil;
    int (*CTSIMSupportCopyMobileSubscriberIdentity)() = dlsym(kit, "CTSIMSupportCopyMobileSubscriberIdentity");
    imsi = (NSString*)CTSIMSupportCopyMobileSubscriberIdentity(nil);
    dlclose(kit);    
    
    
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"IMSI" 
                                                    message:imsi 
                                                   delegate:self 
                                          cancelButtonTitle:@"OK" 
                                          otherButtonTitles:nil];
    [alert show];
    [alert release];
#endif
}