[Gtkpod-devel] libgpod 3.0.3 read stats problem

[Paul G. R. <p.g...@ph...>]

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Hi all,

Am new to this list so greetings, thanks for the library and please
indulge me if this has been asked before.

I am running libgpod.so from a second gpod library that I have given the
jni treatment so I can call it from java (dont ask, I wanted to see if I
could do jni!!). Anyway...

I compile and run the following code from a function in the library:
	itdb = itdb_parse ((const gchar *) podmp, &error);
	printf("Error: %s\n", error->message);
	return (jint) itdb;

This returns the following output/error:
Entry Length = 18
Error: iTunesStats file ('/mnt/mdrive/iPod_Control/iTunes/iTunesStats'):
entry length smaller than expected (18<18).

The "Entry Length" line is a debug printf I have stuck in the code to
verify the entry_length. This error comes from src/itdb_itunesdb.c (as
you probably know) as follows:

static gboolean itunesstats_read (FImport *fimp, FContents *cts)
{
...
	guint32 entry_length = get24lint (cts, seek+0);
        CHECK_ERROR (fimp, FALSE);
	printf("Entry Length = %d\n", entry_length);
        if (entry_length < 0x18)
        {
            g_set_error (&fimp->error,
                         ITDB_FILE_ERROR,
                         ITDB_FILE_ERROR_CORRUPT,
                         _("iTunesStats file ('%s'): entry length
smaller than expected (%d<18). "),
                         cts->filename, entry_length);
            return FALSE;
        }
<snip>

I am no expert on this library's functions hence using the library so
can you explain why this error is occurring. Can you explain:
1) The error message says 18<18 which seems an odd kind of error?
2) 0x18 is 24 which seems to tie up with the function get24lint?
3) When I do change the if operation down to entry_length < 0x12, the
entire library segfaults which implies the error message is incorrect?
4) The ipod I am trying to read is an ipod shuffle with no firmware
upgrades. Do I need firmware upgrades for this to work?

Any help, greatly appreciated.

Regards

Paul (a.k.a phantomjinx)

- --
P.G. Richardson

Email: p.g...@ph...

- ---

"There is no present or future, only the past
happening over and over again now."
Eugene O'Neille

"History is the nightmare from which I am trying
to awake."
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