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First attempt at smart iso9660 reading in CD images.

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_cdio_stream.*: return is now cdio_driver_return_t
This commit is contained in:
rocky
2005-02-05 04:25:14 +00:00
parent a35a0a61d3
commit d958f062ea
10 changed files with 334 additions and 112 deletions
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19
lib/driver/_cdio_stream.c
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@@ -1,5 +1,5 @@
/*
$Id: _cdio_stream.c,v 1.5 2005/02/03 07:35:15 rocky Exp $
$Id: _cdio_stream.c,v 1.6 2005/02/05 04:25:14 rocky Exp $
Copyright (C) 2000, 2004, 2005 Herbert Valerio Riedel <hvr@gnu.org>
Copyright (C) 2005 Rocky Bernstein <rocky@panix.com>
@@ -35,7 +35,7 @@
#include <cdio/util.h>
#include "_cdio_stream.h"
static const char _rcsid[] = "$Id: _cdio_stream.c,v 1.5 2005/02/03 07:35:15 rocky Exp $";
static const char _rcsid[] = "$Id: _cdio_stream.c,v 1.6 2005/02/05 04:25:14 rocky Exp $";
/*
* DataSource implementations
@@ -82,21 +82,20 @@ _cdio_stream_open_if_necessary(CdioDataSource_t *p_obj)
of-file indicator for the stream and undoes any effects of the
ungetc(3) function on the same stream.
RETURN VALUE
Upon successful completion, return 0,
Otherwise, -1 is returned and the global variable errno is set to indi-
cate the error.
@return unpon successful completion, DRIVER_OP_SUCCESS, else,
DRIVER_OP_ERROR is returned and the global variable errno is set to
indicate the error.
*/
long int
driver_return_code_t
cdio_stream_seek(CdioDataSource_t* p_obj, long int offset, int whence)
{
if (!p_obj) return -1;
if (!p_obj) return DRIVER_OP_UNINIT;
if (!_cdio_stream_open_if_necessary(p_obj))
/* errno is set by _cdio_stream_open_if necessary. */
return -1;
return DRIVER_OP_ERROR;
if (offset < 0) return -1;
if (offset < 0) return DRIVER_OP_ERROR;
if (p_obj->position != offset) {
#ifdef STREAM_DEBUG