Re: [PATCH 2.6]: IPv6: strcpy -> strlcpy

["Ihar 'Philips' Filipau" <filia@softhome.net>]

Russell King wrote:
> 
> That ends up writing uninitialised kernel data to (unprivileged) user
> space.  So would strcpy() used in that situation.
> 

   I used to use:

    char buf[MAX];
     ...
    buf[MAX-1] = 0; /* zero terminate */
    strncpy(buf, src, MAX-1);

   This is safe regarding both 0 termination and 0 padding rest of string.

-- 
Ihar 'Philips' Filipau  / with best regards from Saarbruecken.
--                                                           _ _ _
  Because the kernel depends on it existing. "init"          |_|*|_|
  literally _is_ special from a kernel standpoint,           |_|_|*|
  because its' the "reaper of zombies" (and, may I add,      |*|*|*|
  that would be a great name for a rock band).
                                 -- Linus Torvalds