Re: auto-apt-0.3.22 hurd patch (PATH_MAX)
On Thu, Jan 26, 2012 at 1:21 PM, Tanguy LE CARROUR
<tanguy.lecarrour@gmail.com> wrote:
> 2) The problem in pkg_symbol() is a bit different. The dynamically allocated
> buffer is the return value of the function, so I cannot free it in the
> function. The rest of the code that uses this buffer never frees it!
> Am I supposed to fix each part of the code that uses this function to free
> the returned buffer?!
Presumably the returned buffer is static.
You could use a static pointer to a buffer which is reallocated on
each call; from the exterior the semantics would be close to
identical:
char *fun(void)
{
static char *buf = NULL;
...
buf = realloc(buf, whatever size is required this time);
...
return buf;
}
You'll be fine as long as the calling code does not assume the
function returns a constant pointer.
--
Jérémie Koenig <jk@jk.fr.eu.org>
http://jk.fr.eu.org/
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