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/*
$Id: cdio.c,v 1.13 2005/02/03 07:35:15 rocky Exp $
Copyright (C) 2003, 2004, 2005 Rocky Bernstein <rocky@panix.com>
Copyright (C) 2001 Herbert Valerio Riedel <hvr@gnu.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <sys/types.h>
#include <sys/stat.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "cdio_assert.h"
#include <cdio/cdio.h>
#include <cdio/util.h>
#include "cdio_private.h"
static const char _rcsid[] = "$Id: cdio.c,v 1.13 2005/02/03 07:35:15 rocky Exp $";
/*!
Return the value associatied with key. NULL is returned if obj is NULL
or "key" does not exist.
*/
const char *
cdio_get_arg (const CdIo *obj, const char key[])
{
if (obj == NULL) return NULL;
if (obj->op.get_arg) {
return obj->op.get_arg (obj->env, key);
} else {
return NULL;
}
}
/*!
Get cdtext information for a CdIo object .
@param obj the CD object that may contain CD-TEXT information.
@return the CD-TEXT object or NULL if obj is NULL
or CD-TEXT information does not exist.
*/
cdtext_t *
cdio_get_cdtext (CdIo *obj, track_t i_track)
{
if (obj == NULL) return NULL;
if (obj->op.get_cdtext) {
return obj->op.get_cdtext (obj->env, i_track);
} else {
return NULL;
}
}
CdIo_t *
cdio_new (generic_img_private_t *p_env, cdio_funcs_t *p_funcs)
{
CdIo_t *p_new_cdio = calloc(1, sizeof (CdIo_t));
if (NULL == p_new_cdio) return NULL;
p_new_cdio->env = p_env; /* This is the private "environment" that
driver-dependent routines use. */
p_new_cdio->op = *p_funcs;
p_env->cdio = p_new_cdio; /* A way for the driver-dependent routines
to access the higher-level general cdio
object. */
return p_new_cdio;
}
/*!
Set the arg "key" with "value" in the source device.
*/
driver_return_code_t
cdio_set_arg (CdIo_t *p_cdio, const char key[], const char value[])
{
if (!p_cdio) return DRIVER_OP_UNINIT;
if (!p_cdio->op.set_arg) return DRIVER_OP_UNSUPPORTED;
if (!key) return DRIVER_OP_ERROR;
return p_cdio->op.set_arg (p_cdio->env, key, value);
}
/*
* Local variables:
* c-file-style: "gnu"
* tab-width: 8
* indent-tabs-mode: nil
* End:
*/
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