iPhone APIs to access SMS, calendar, emails, call logs?

I am new to iPhone development, I am developing an application like sync for iPhone.

This application should read all databases like the address book,开发者_C百科 SMS, calendar, emails and call logs.

I have found an API to read the address book, however I couldn't find APIs to read SMS, calendar, emails, call logs or bookmarks.

How do I do it?

It's not possible due to the sandboxing on iPhone.

Only the address book and the photo library can be accessed from 3rd party iPhone apps. If it's desperate, you could make it for jailbroken iPhones as everything is open then - but the app would only work on jailbroken phones (meaning no appstore and cydia is a pain)