Error on iOS SDK 5.0 when calling open(&handle);

[GoogleCodeExporter]

Following code (opening a handel with C library dlfcn.h) was working find till 
iOS 4.3.3 

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void *handle = 
dlopen("/System/Library/SystemConfiguration/WiFiManager.bundle/WiFiManager", 
RTLD_LAZY);

    int (*open)(void *) = dlsym(handle, "Apple80211Open");
    int (*bind)(void *, CFStringRef) = dlsym(handle, "Apple80211BindToInterface");
    int (*close)(void *) = dlsym(handle, "Apple80211Close");        
    int (*scan)(void *, CFArrayRef *, void *) = dlsym(handle, "Apple80211Scan");

    open(&handle);    
    bind(handle, CFSTR("en0"));   
    CFDictionaryRef parameters = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);    
    CFArrayRef networks;    
    scan(handle, &networks, parameters);

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With new SDK 5.0 on beta getting following error, 
Is there any one who have found a solution on this?

Errors:
warning: check_safe_call: could not restore current frame
warning: Unable to restore previously selected frame.

Original issue reported on code.google.com by tso...@gmail.com on 10 Jun 2011 at 4:23