RE: [BUG] settimeofday(2) succeeds for microsecond value more than USEC_PER_SEC and for negative value

Aniruddha M Marathe (aniruddha.marathe@wipro.com)
Fri, 11 Apr 2003 18:37:56 +0530


Even then, I think, we can modify the settimeofday code to check -1 and USEC_PER_SEC
Conditions, can't we?

|-----Original Message-----
|From: george anzinger [mailto:george@mvista.com]
|Sent: Friday, April 11, 2003 11:56 AM
|To: Aniruddha M Marathe
|Cc: linux-kernel@vger.kernel.org; Chandrashekhar RS
|Subject: Re: [BUG] settimeofday(2) succeeds for microsecond
|value more than USEC_PER_SEC and for negative value
|
|
|Aniruddha M Marathe wrote:
|> Settimeofday(2) should return EINVAL in case where
|tv.tv_usec parameter is more than
|> USEC_PER_SEC (more than 10^6 ) or for negative values of tv.tv_usec.
|> It returns 0 (success) instead.
|>
|> Clock_settimeofday(2) (kernel/posix-timers.c) also uses
|do_sys_settimeofday() and faces the
|> Same problem.
|>
|> I think this is a bug. If you confirm, I will send a patch.
|
|Yes, it is a known problem, turned up by some the posix timers tests.
| I suppose it is too much to ask, but it would be nice if
|do_sys_settimeofday() took a timespec instead of a timeval. Of course
|this changes the interface for all the archs, but it would allow the
|clock_settimeofday to send in the nsec value.
|
|-g
|
|>
|> Regards,
|> Aniruddha Marathe
|> WIPRO Technologies, India
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|
|--
|George Anzinger george@mvista.com
|High-res-timers: http://sourceforge.net/projects/high-res-timers/
|Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml
|
|
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