Re: sprintf security holes?

On Mon, Sep 19, 2005 at 12:42:08AM -0700, Junio C Hamano wrote:

We _might_ be protected from buffer overrun errors [*1*], but we
would then end up operating on a truncated data -- which would
lead to an equally unexpected behaviour.  I do not think there
is any guarantee that working with unexpectedly truncated data
leads to less severe security problems than buffer overruns with
careless sprintf().

But you can _check_ whether the data has been truncated.
Just look at the return value of snprintf.

skimo