[U-Boot-Users] Question on do_bootm in cmd_bootm.c

[Nick Barendt]

At 03:58 PM 10/22/2004 -0400, Dan Malek wrote:

>On Oct 22, 2004, at 3:22 PM, Nick Barendt wrote:
>
>>.... So, I propose a patch ...
>
>Let's see it :-)


I've made all of the mods, but I won't have time to get a patch together 
(crossing my t's, dotting my i's, CHANGELOG entry, etc.) today, and I'm out 
of the office next week.  I'll get the patch together and mail it out when 
I get back.


>>.... and makes zlib return an error if the output buffer fills up so 
>>these types of errors are painfully obvious.
>
>It may already return some error status if we choose to test it.
>

Nope, no error is returned.  inflate_flush() in zlib.c just silently 
truncates the output:

local int inflate_flush(s, z, r)
inflate_blocks_statef *s;
z_stream *z;
int r;
{

SNIP

   /* compute number of bytes to copy as far as end of window */
   n = (uInt)((q <= s->write ? s->write : s->end) - q);
   if (n > z->avail_out) n = z->avail_out;
   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

SNIP

The bzip2 code actually returns a specific error for this, 
BZ_OUTPUT_BUFF_FULL.  I've modified zlib to behave similarly.

>         -- Dan
>