[PATCH] drivers/tty/hvc: fixup original commit: 9276dfd27897a0b29d8b5814f39a1f82f56b6b6b

David Laight David.Laight at ACULAB.COM
Fri Mar 8 22:11:47 EST 2013


> On Fri, 2013-03-08 at 11:38 +0800, Chen Gang wrote:
> >   originally I did not notice src buf len and dest buf len are the same.
> >     so origianlly, it is not a bug issue, it is only for beautify code.
> >     and now, using strcpy is better.
> 
> Being the same len doesn't mean it's safe to use strcpy ... the source
> might be missing the 0 terminator. In this specific case though, I
> believe the source string comes was itself populated with strlcpy
> (at least since your patch 6b6680c4ea3952af8ae76915cbca41245147741b) so
> strcpy is indeed safe but using strlcpy doesn't hurt does it ?

Using strlcpy() also stops someone else having to check it
again in a few years time.

	David





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