Mac Standard/Non-Admin User reading login history?
I wrote a little program that reading wtmp to show login history (utmpx.h), the problem is it only works when the user is an Admin User, Standard Users of Mac OS X simply can't see any record. 

I know wmtp can only be read by admins, so my questions is: are there any alternatives rather than reading wtmp to get login history? Or, is it possible for a Standard User to read the wtmp (or just read the user's own history)? 

Thanks and sorry for my bad English.
Mac Standard/Non-Admin User reading login history?
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I wrote a little program that reading wtmp to show login history (utmpx.h), the problem is it only works when the user is an Admin User, Standard Users of Mac OS X simply can't see any record. 

I know wmtp can only be read by admins, so my questions is: are there any alternatives rather than reading wtmp to get login history? Or, is it possible for a Standard User to read the wtmp (or just read the user's own history)? 

Thanks and sorry for my bad English.