/* --------------------------------------------------------------------------
MusicBrainz -- The Internet music metadatabase
Copyright (C) 2009 Anton Yabchinskiy
Copyright (C) 2006 Matthias Friedrich
Copyright (C) 2000 Robert Kaye
Copyright (C) 1999 Marc E E van Woerkom
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
$Id$
--------------------------------------------------------------------------- */
#include <sys/types.h>
#include <sys/cdio.h>
#include <sys/ioctl.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "discid/discid.h"
#include "discid/discid_private.h"
#define MB_DEFAULT_DEVICE "/dev/rcd0c"
#ifdef __NetBSD__
#define CD_TRACK_LEADOUT 0xAA
#ifdef __i386__
#define MB_DEFAULT_DEVICE "/dev/rcd0d"
#endif/* __i386__ */
#endif/* __NetBSD__ */
static int
read_toc_entry (int fd, int track, struct cd_toc_entry *te)
{
struct ioc_read_toc_entry rte;
rte.address_format = CD_LBA_FORMAT;
rte.data = te;
rte.data_len = sizeof (*te);
rte.starting_track = track;
if (ioctl (fd, CDIOREADTOCENTRYS, &rte) == -1) {
return errno;
}
return 0;
}
static inline int
is_data_track (const struct cd_toc_entry *te)
{
return (te->control & 0x4) != 0;
}
int
mb_disc_read_unportable (mb_disc_private *disc, const char *device, unsigned int features)
{
struct cd_toc_entry te;
struct ioc_toc_header th;
int fd, i, rc;
fd = open (device, O_RDONLY | O_NONBLOCK);
if (fd == -1) {
snprintf (disc->error_msg, MB_ERROR_MSG_LENGTH,
"could not open device '%s' (errno %i, '%s')", device, errno,
strerror (errno));
return 0;
}
rc = ioctl (fd, CDIOREADTOCHEADER, &th);
if (rc == -1) {
snprintf (disc->error_msg, MB_ERROR_MSG_LENGTH,
"could not read table of contents (errno %i, '%s')", errno,
strerror (errno));
close (fd);
return 0;
}
if (th.ending_track == 0) {
snprintf (disc->error_msg, MB_ERROR_MSG_LENGTH, "disc has no tracks");
close (fd);
return 0;
}
disc->first_track_num = th.starting_track;
disc->last_track_num = th.ending_track;
rc = read_toc_entry (fd, CD_TRACK_LEADOUT, &te);
if (rc != 0) {
snprintf (disc->error_msg, MB_ERROR_MSG_LENGTH,
"could not read TOC entry for lead-out track (errno %i, '%s')",
rc, strerror (rc));
close (fd);
return 0;
}
disc->track_offsets [0] = (int) te.addr.lba + 150;
for (i = th.starting_track; i <= th.ending_track; ++i) {
rc = read_toc_entry (fd, i, &te);
if (rc != 0) {
snprintf (disc->error_msg, MB_ERROR_MSG_LENGTH,
"could not read TOC entry for track %i (errno %i, '%s')", i,
rc, strerror (rc));
close (fd);
return 0;
}
if (is_data_track (&te)) {
if (i == th.starting_track) {
snprintf (disc->error_msg, MB_ERROR_MSG_LENGTH,
"disc has no audio tracks");
close (fd);
return 0;
}
break;
}
disc->track_offsets [i] = (int) te.addr.lba + 150;
}
close (fd);
return 1;
}
char *
mb_disc_get_default_device_unportable (void)
{
return MB_DEFAULT_DEVICE;
}
int
mb_disc_has_feature_unportable(enum discid_feature feature) {
switch(feature) {
case DISCID_FEATURE_READ:
return 1;
default:
return 0;
}
}