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/*
* Copyright 2011-2013 Various Authors
* Copyright 2011 Johannes Weißl
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "discid.h"
#include "xmalloc.h"
#include "path.h"
#include "utils.h"
#include "debug.h"
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <limits.h>
#ifdef HAVE_DISCID
#include <discid/discid.h>
#endif
char *get_default_cdda_device(void)
{
const char *dev = NULL;
#ifdef HAVE_DISCID
dev = discid_get_default_device();
#endif
if (!dev)
dev = "/dev/cdrom";
return xstrdup(dev);
}
int parse_cdda_url(const char *url, char **disc_id, int *start_track, int *end_track)
{
char *slash, *dash;
long int t;
if (!is_cdda_url(url))
return 0;
url += 7;
slash = strrchr(url, '/');
if (slash) {
*disc_id = xstrndup(url, slash - url);
url = slash + 1;
}
dash = strchr(url, '-');
if (dash) {
char *tmp = xstrndup(url, dash - url);
if (str_to_int(tmp, &t) == 0)
*start_track = t;
if (end_track) {
if (str_to_int(dash + 1, &t) == 0)
*end_track = t;
else
*end_track = INT_MAX;
}
free(tmp);
} else {
if (str_to_int(url, &t) == 0)
*start_track = t;
}
return 1;
}
char *gen_cdda_url(const char *disc_id, int start_track, int end_track)
{
char buf[256];
if (end_track != -1)
snprintf(buf, sizeof(buf), "cdda://%s/%d-%d", disc_id, start_track, end_track);
else
snprintf(buf, sizeof(buf), "cdda://%s/%d", disc_id, start_track);
return xstrdup(buf);
}
char *complete_cdda_url(const char *device, const char *url)
{
char *new_url, *url_disc_id = NULL, *disc_id = NULL;
int is_range, start_track = -1, end_track = -1, num_tracks = -1;
parse_cdda_url(url, &url_disc_id, &start_track, &end_track);
is_range = (start_track == -1 && end_track == -1) || end_track == INT_MAX;
if (!url_disc_id || is_range) {
if (url_disc_id && strchr(url_disc_id, '/'))
device = url_disc_id;
get_disc_id(device, &disc_id, &num_tracks);
if (is_range)
end_track = num_tracks;
if (!url_disc_id)
url_disc_id = disc_id;
}
if (start_track == -1)
start_track = 1;
new_url = gen_cdda_url(url_disc_id, start_track, end_track);
free(disc_id);
return new_url;
}
static int get_device_disc_id(const char *device, char **disc_id, int *num_tracks)
{
#ifdef HAVE_DISCID
DiscId *disc = discid_new();
if (!disc)
return 0;
if (!discid_read(disc, device)) {
d_print("%s\n", discid_get_error_msg(disc));
discid_free(disc);
return 0;
}
*disc_id = xstrdup(discid_get_id(disc));
if (num_tracks)
*num_tracks = discid_get_last_track_num(disc);
discid_free(disc);
return 1;
#else
return 0;
#endif
}
int get_disc_id(const char *device, char **disc_id, int *num_tracks)
{
struct stat st;
if (stat(device, &st) == -1)
return 0;
if (S_ISBLK(st.st_mode))
return get_device_disc_id(device, disc_id, num_tracks);
*disc_id = path_absolute(device);
return 1;
}
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