[LEGO <luis.ontanon@xxxxxxxxx>]

Nope!
I was running it from a TextWindow... where the button callback data
was ep_allocated...
ep_allocated memory got reused after cf_read() and so it crashed...


On 10/2/06, LEGO <luis.ontanon@xxxxxxxxx> wrote:
> Hi folks,
>
> while writing an open_capture_file() function for lua I came up with
> an odd situation.
>
> When executing the following code more than once, during the cf_read
> call the stack gets overwritten.
>
>         if (cf_open(&cfile, fname, FALSE, &err) != CF_OK) {
>                 return FALSE;
>         }
>         cfile.rfcode = rfcode;
>
>         switch (cf_read(&cfile)) {
>                 case CF_READ_OK:
>                 case CF_READ_ERROR:
>                         break;
>                 default:
>                         return FALSE;
>         }
>
> overwriting happens when calling wtap_read() from file.c:405
>
> I tried to understand why this happens but nothing appears to me to be
> the cause.
>
> Is there something I should do before calling cf_open() to avoid this happening.
>
> Thanks,
> Luis
>
>
> --
> This information is top security. When you have read it, destroy yourself.
> -- Marshall McLuhan


--
This information is top security. When you have read it, destroy yourself.
-- Marshall McLuhan