- don't reboot() when feed with wrong parameters (and enough permissions) [1] - add support to power off the system [2] - check the linux magic values [3]
- don't reboot() when feed with wrong parameters (and enough permissions) [1]
- add support to power off the system [2]
- check the linux magic values [3]

Submitted by:	Marcin Cieslak <saper@SYSTEM.PL> [1,2]
Modelled after:	linux man page of the reboot() syscall [3]
Found by:	LTP testcase "reboot02" [1]
Tested with:	LTP testcase "reboot02" [1,3]
MFC after:	1 week

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