cocoa - Getting bundle identifier in Swift -

i'm trying bundleid using app's directory , i'm getting error: exc_bad_access(code=1, address=0xd8)

application.directory! string

let startcstring = (application.directory! nsstring).utf8string //type: unsafepointer<int8> let convertedcstring = unsafepointer<uint8>(startcstring) //cfurlcreatefromfilerepresentation needs <uint8> pointer let length = application.directory!.lengthofbytesusingencoding(nsutf8stringencoding) let dir = cfurlcreatefromfilesystemrepresentation(kcfallocatordefault, convertedcstring, length, false) let bundle = cfbundlecreate(kcfallocatordefault, dir) let result = cfbundlegetidentifier(bundle) 

and error on result line.

what doing wrong here?

one potential problem code pointer obtained in

let startcstring = (application.directory! nsstring).utf8string //type: unsafepointer<int8> 

is valid long temporary nsstring exists. conversion c string can done "automatically" compiler (compare string value unsafepointer<uint8> function parameter behavior), working version should be

let dir = cfurlcreatefromfilesystemrepresentation(kcfallocatordefault, path, int(strlen(path)), false) let bundle = cfbundlecreate(kcfallocatordefault, dir) let result = cfbundlegetidentifier(bundle) 

but can create nsbundle given path , obtain identifier:

let ident = nsbundle(path: path)!.bundleidentifier! 

full example added error checking:

let path = "/applications/textedit.app"  if let bundle = nsbundle(path: path) {     if let ident = bundle.bundleidentifier {         print(ident) // com.apple.textedit     } else {         print("bundle has no identifier")     } } else {     print("bundle not found") }