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cb77400006
mpv/stream/stream_cddb.c
reimar 7d5a6b9b02 stream_cddb: replace sprintf with snprintf 
Replace sprintf with snprintf.

To my knowledge the only "real" issue this fixes
is that setting certain environment variables to
very long strings might have caused overflows.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35306 b3059339-0415-0410-9bf9-f77b7e298cf2
2012-10-31 22:44:05 +01:00

901 lines
26 KiB
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/*
* CDDB HTTP protocol
*
* Copyright (C) 2002 Bertrand Baudet <bertrand_baudet@yahoo.com>
*
* Implementation follow the freedb.howto1.06.txt specification
* from http://freedb.freedb.org
*
* discid computation by Jeremy D. Zawodny
* Copyright (c) 1998-2000 Jeremy D. Zawodny <Jeremy@Zawodny.com>
*
* This file is part of MPlayer.
*
* MPlayer 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.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <stdarg.h>
#include <errno.h>
#include <unistd.h>
#include <string.h>
#include <limits.h>
#include "osdep/io.h"
#if defined(__MINGW32__) || defined(__CYGWIN__)
#include <windows.h>
#if HAVE_WINSOCK2_H
#include <winsock2.h>
#endif
#else
#include <netdb.h>
#include <sys/ioctl.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include "mp_msg.h"
#include "path.h"
#if defined(__linux__)
#include <linux/cdrom.h>
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
#include <sys/cdio.h>
#elif defined(__MINGW32__) || defined(__CYGWIN__)
#include <ddk/ntddcdrm.h>
#elif defined(__bsdi__)
#include <dvd.h>
#elif defined(__APPLE__) || defined(__DARWIN__)
#include <IOKit/storage/IOCDTypes.h>
#include <IOKit/storage/IOCDMediaBSDClient.h>
#include "mpbswap.h"
#endif
#include "cdd.h"
#include "mpcommon.h"
#include "stream.h"
#include "network.h"
#include "libavutil/common.h"
#define DEFAULT_FREEDB_SERVER "freedb.freedb.org"
#define DEFAULT_CACHE_DIR "/.cddb/"
typedef struct {
char cddb_hello[1024];
unsigned long disc_id;
unsigned int tracks;
char *cache_dir;
char *freedb_server;
int freedb_proto_level;
int anonymous;
char category[100];
char *xmcd_file;
size_t xmcd_file_size;
void *user_data;
} cddb_data_t;
typedef struct {
unsigned int min, sec, frame;
} cd_toc_t;
static cd_toc_t cdtoc[100];
static int cdtoc_last_track;
static int read_toc(const char *dev)
{
int first = 0, last = -1;
int i;
#if defined(__MINGW32__) || defined(__CYGWIN__)
HANDLE drive;
DWORD r;
CDROM_TOC toc;
char device[10];
snprintf(device, sizeof(device), "\\\\.\\%s", dev);
drive = CreateFile(device, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, 0, 0);
if (!DeviceIoControl(drive, IOCTL_CDROM_READ_TOC, NULL, 0, &toc,
sizeof(CDROM_TOC), &r, 0)) {
mp_tmsg(MSGT_OPEN, MSGL_ERR, "Failed to read TOC.\n");
return 0;
}
first = toc.FirstTrack - 1; last = toc.LastTrack;
for (i = first; i <= last; i++) {
cdtoc[i].min = toc.TrackData[i].Address[1];
cdtoc[i].sec = toc.TrackData[i].Address[2];
cdtoc[i].frame = toc.TrackData[i].Address[3];
}
CloseHandle(drive);
#else
int drive;
drive = open(dev, O_RDONLY | O_NONBLOCK);
if (drive < 0) {
return drive;
}
#if defined(__linux__) || defined(__bsdi__)
{
struct cdrom_tochdr tochdr;
ioctl(drive, CDROMREADTOCHDR, &tochdr);
first = tochdr.cdth_trk0 - 1; last = tochdr.cdth_trk1;
}
for (i = first; i <= last; i++) {
struct cdrom_tocentry tocentry;
tocentry.cdte_track = (i == last) ? 0xAA : i + 1;
tocentry.cdte_format = CDROM_MSF;
ioctl(drive, CDROMREADTOCENTRY, &tocentry);
cdtoc[i].min = tocentry.cdte_addr.msf.minute;
cdtoc[i].sec = tocentry.cdte_addr.msf.second;
cdtoc[i].frame = tocentry.cdte_addr.msf.frame;
}
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
{
struct ioc_toc_header tochdr;
ioctl(drive, CDIOREADTOCHEADER, &tochdr);
first = tochdr.starting_track - 1; last = tochdr.ending_track;
}
for (i = first; i <= last; i++) {
struct ioc_read_toc_single_entry tocentry;
tocentry.track = (i == last) ? 0xAA : i + 1;
tocentry.address_format = CD_MSF_FORMAT;
ioctl(drive, CDIOREADTOCENTRY, &tocentry);
cdtoc[i].min = tocentry.entry.addr.msf.minute;
cdtoc[i].sec = tocentry.entry.addr.msf.second;
cdtoc[i].frame = tocentry.entry.addr.msf.frame;
}
#elif defined(__NetBSD__) || defined(__OpenBSD__)
{
struct ioc_toc_header tochdr;
ioctl(drive, CDIOREADTOCHEADER, &tochdr);
first = tochdr.starting_track - 1; last = tochdr.ending_track;
}
for (i = first; i <= last; i++) {
struct ioc_read_toc_entry tocentry;
struct cd_toc_entry toc_buffer;
tocentry.starting_track = (i == last) ? 0xAA : i + 1;
tocentry.address_format = CD_MSF_FORMAT;
tocentry.data = &toc_buffer;
tocentry.data_len = sizeof(toc_buffer);
ioctl(drive, CDIOREADTOCENTRYS, &tocentry);
cdtoc[i].min = toc_buffer.addr.msf.minute;
cdtoc[i].sec = toc_buffer.addr.msf.second;
cdtoc[i].frame = toc_buffer.addr.msf.frame;
}
#elif defined(__APPLE__) || defined(__DARWIN__)
{
dk_cd_read_toc_t tochdr;
uint8_t buf[4];
uint8_t buf2[100 * sizeof(CDTOCDescriptor) + sizeof(CDTOC)];
memset(&tochdr, 0, sizeof(tochdr));
tochdr.bufferLength = sizeof(buf);
tochdr.buffer = &buf;
if (!ioctl(drive, DKIOCCDREADTOC, &tochdr)
&& tochdr.bufferLength == sizeof(buf)) {
first = buf[2] - 1;
last = buf[3];
}
if (last >= 0) {
memset(&tochdr, 0, sizeof(tochdr));
tochdr.bufferLength = sizeof(buf2);
tochdr.buffer = &buf2;
tochdr.format = kCDTOCFormatTOC;
if (ioctl(drive, DKIOCCDREADTOC, &tochdr)
|| tochdr.bufferLength < sizeof(CDTOC))
last = -1;
}
if (last >= 0) {
CDTOC *cdToc = (CDTOC *)buf2;
CDTrackInfo lastTrack;
dk_cd_read_track_info_t trackInfoParams;
for (i = first; i < last; ++i) {
CDMSF msf = CDConvertTrackNumberToMSF(i + 1, cdToc);
cdtoc[i].min = msf.minute;
cdtoc[i].sec = msf.second;
cdtoc[i].frame = msf.frame;
}
memset(&trackInfoParams, 0, sizeof(trackInfoParams));
trackInfoParams.addressType = kCDTrackInfoAddressTypeTrackNumber;
trackInfoParams.bufferLength = sizeof(lastTrack);
trackInfoParams.address = last;
trackInfoParams.buffer = &lastTrack;
if (!ioctl(drive, DKIOCCDREADTRACKINFO, &trackInfoParams)) {
CDMSF msf = CDConvertLBAToMSF(be2me_32(lastTrack.trackStartAddress)
+ be2me_32(lastTrack.trackSize));
cdtoc[last].min = msf.minute;
cdtoc[last].sec = msf.second;
cdtoc[last].frame = msf.frame;
}
}
}
#endif
close(drive);
#endif
for (i = first; i <= last; i++)
cdtoc[i].frame += (cdtoc[i].min * 60 + cdtoc[i].sec) * 75;
return last;
}
/**
\brief Reads TOC from CD in the given device and prints the number of tracks
and the length of each track in minute:second:frame format.
\param *dev the device to analyse
\return if the command line -identify is given, returns the last track of
the TOC or -1 if the TOC can't be read,
otherwise just returns 0 and let cddb_resolve the TOC
*/
int cdd_identify(const char *dev)
{
cdtoc_last_track = 0;
if (mp_msg_test(MSGT_IDENTIFY, MSGL_INFO)) {
int i, min, sec, frame;
cdtoc_last_track = read_toc(dev);
if (cdtoc_last_track < 0) {
mp_tmsg(MSGT_OPEN, MSGL_ERR, "Failed to open %s device.\n", dev);
return -1;
}
mp_msg(MSGT_GLOBAL, MSGL_INFO, "ID_CDDA_TRACKS=%d\n", cdtoc_last_track);
for (i = 1; i <= cdtoc_last_track; i++) {
frame = cdtoc[i].frame - cdtoc[i-1].frame;
sec = frame / 75;
frame -= sec * 75;
min = sec / 60;
sec -= min * 60;
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_CDDA_TRACK_%d_MSF=%02d:%02d:%02d\n", i, min, sec, frame);
}
}
return cdtoc_last_track;
}
static unsigned int cddb_sum(int n)
{
unsigned int ret;
ret = 0;
while (n > 0) {
ret += (n % 10);
n /= 10;
}
return ret;
}
static unsigned long cddb_discid(int tot_trks)
{
unsigned int i, t = 0, n = 0;
i = 0;
while (i < (unsigned int)tot_trks) {
n = n + cddb_sum((cdtoc[i].min * 60) + cdtoc[i].sec);
i++;
}
t = ((cdtoc[tot_trks].min * 60) + cdtoc[tot_trks].sec) -
((cdtoc[0].min * 60) + cdtoc[0].sec);
return (n % 0xff) << 24 | t << 8 | tot_trks;
}
static int cddb_http_request(char *command,
int (*reply_parser)(HTTP_header_t*, cddb_data_t*),
cddb_data_t *cddb_data)
{
char request[4096];
int fd, ret = 0;
URL_t *url;
HTTP_header_t *http_hdr;
if (reply_parser == NULL || command == NULL || cddb_data == NULL)
return -1;
snprintf(request, sizeof(request), "http://%s/~cddb/cddb.cgi?cmd=%s%s&proto=%d",
cddb_data->freedb_server, command, cddb_data->cddb_hello,
cddb_data->freedb_proto_level);
mp_msg(MSGT_OPEN, MSGL_INFO,"Request[%s]\n", request);
url = url_new(request);
if (url == NULL) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "not a valid URL\n");
return -1;
}
fd = http_send_request(url,0);
if (fd < 0) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "Failed to send the HTTP request.\n");
return -1;
}
http_hdr = http_read_response(fd);
if (http_hdr == NULL) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "Failed to read the HTTP response.\n");
return -1;
}
http_debug_hdr(http_hdr);
mp_msg(MSGT_OPEN, MSGL_INFO,"body=[%s]\n", http_hdr->body);
switch (http_hdr->status_code) {
case 200:
ret = reply_parser(http_hdr, cddb_data);
break;
case 400:
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "Not Found.\n");
break;
default:
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "unknown error code\n");
}
http_free(http_hdr);
url_free(url);
return ret;
}
static int cddb_read_cache(cddb_data_t *cddb_data)
{
char file_name[100];
struct stat stats;
int file_fd, ret;
size_t file_size;
if (cddb_data == NULL || cddb_data->cache_dir == NULL)
return -1;
snprintf(file_name, sizeof(file_name), "%s%08lx", cddb_data->cache_dir, cddb_data->disc_id);
file_fd = open(file_name, O_RDONLY | O_BINARY);
if (file_fd < 0) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "No cache found.\n");
return -1;
}
ret = fstat(file_fd, &stats);
if (ret < 0) {
perror("fstat");
file_size = 4096;
} else {
file_size = stats.st_size < UINT_MAX ? stats.st_size : UINT_MAX - 1;
}
cddb_data->xmcd_file = malloc(file_size + 1);
if (cddb_data->xmcd_file == NULL) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "Memory allocation failed.\n");
close(file_fd);
return -1;
}
cddb_data->xmcd_file_size = read(file_fd, cddb_data->xmcd_file, file_size);
if (cddb_data->xmcd_file_size != file_size) {
mp_tmsg(MSGT_DEMUX, MSGL_WARN, "Not all the xmcd file has been read.\n");
close(file_fd);
return -1;
}
cddb_data->xmcd_file[cddb_data->xmcd_file_size] = 0;
close(file_fd);
return 0;
}
static int cddb_write_cache(cddb_data_t *cddb_data)
{
// We have the file, save it for cache.
char file_name[100];
int file_fd, ret;
int wrote = 0;
if (cddb_data == NULL || cddb_data->cache_dir == NULL)
return -1;
// Check if the CDDB cache dir exist
if (!mp_path_exists(cddb_data->cache_dir)) {
// Directory not present, create it.
ret = mkdir(cddb_data->cache_dir, 0755);
#ifdef __MINGW32__
if (ret < 0 && errno != EEXIST) {
#else
if (ret < 0) {
#endif
perror("mkdir");
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "Failed to create directory %s.\n",
cddb_data->cache_dir);
return -1;
}
}
snprintf(file_name, sizeof(file_name), "%s%08lx", cddb_data->cache_dir, cddb_data->disc_id);
file_fd = creat(file_name, S_IRUSR | S_IWUSR);
if (file_fd < 0) {
perror("create");
return -1;
}
wrote = write(file_fd, cddb_data->xmcd_file, cddb_data->xmcd_file_size);
if (wrote < 0) {
perror("write");
close(file_fd);
return -1;
}
if ((unsigned int) wrote != cddb_data->xmcd_file_size) {
mp_tmsg(MSGT_DEMUX, MSGL_WARN, "Not all of the xmcd file has been written.\n");
close(file_fd);
return -1;
}
close(file_fd);
return 0;
}
static int cddb_read_parse(HTTP_header_t *http_hdr, cddb_data_t *cddb_data)
{
unsigned long disc_id;
char category[100];
char *ptr = NULL, *ptr2 = NULL;
int ret, status;
if (http_hdr == NULL || cddb_data == NULL)
return -1;
ret = sscanf(http_hdr->body, "%d ", &status);
if (ret != 1) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "parse error");
return -1;
}
switch (status) {
case 210:
ret = sscanf(http_hdr->body, "%d %99s %08lx", &status,
category, &disc_id);
if (ret != 3) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "parse error");
return -1;
}
// Check if it's a xmcd database file
ptr = strstr(http_hdr->body, "# xmcd");
if (ptr == NULL) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR,
"Invalid xmcd database file returned.\n");
return -1;
}
ptr = strdup(ptr);
// Ok found the beginning of the file
// look for the end
ptr2 = strstr(ptr, "\n.\r\n");
if (!ptr2)
ptr2 = strstr(ptr, "\n.\n");
if (ptr2) {
ptr2++;
} else {
mp_msg(MSGT_DEMUX, MSGL_FIXME, "Unable to find '.'\n");
ptr2 = ptr + strlen(ptr); //return -1;
}
// Ok found the end
// do a sanity check
if (http_hdr->body_size < (unsigned int)(ptr2 - ptr)) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "unexpected FIXME\n");
return -1;
}
cddb_data->xmcd_file = ptr;
cddb_data->xmcd_file_size = ptr2 - ptr;
cddb_data->xmcd_file[cddb_data->xmcd_file_size] = '\0';
return cddb_write_cache(cddb_data);
default:
mp_tmsg(MSGT_DEMUX, MSGL_FIXME, "unhandled code\n");
}
return 0;
}
static int cddb_request_titles(cddb_data_t *cddb_data)
{
char command[1024];
snprintf(command, sizeof(command), "cddb+read+%s+%08lx",
cddb_data->category, cddb_data->disc_id);
return cddb_http_request(command, cddb_read_parse, cddb_data);
}
static int cddb_parse_matches_list(HTTP_header_t *http_hdr, cddb_data_t *cddb_data)
{
char album_title[100];
char *ptr = NULL;
int ret;
ptr = strstr(http_hdr->body, "\n");
if (ptr == NULL) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "Unable to find end of line.\n");
return -1;
}
ptr++;
// We have a list of exact/inexact matches, so which one do we use?
// So let's take the first one.
ret = sscanf(ptr, "%99s %08lx %99s", cddb_data->category,
&(cddb_data->disc_id), album_title);
if (ret != 3) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "parse error");
return -1;
}
ptr = strstr(http_hdr->body, album_title);
if (ptr != NULL) {
char *ptr2;
int len;
ptr2 = strstr(ptr, "\n");
if (ptr2 == NULL) {
len = (http_hdr->body_size)-(ptr-(http_hdr->body));
} else {
len = ptr2-ptr+1;
}
len = FFMIN(sizeof(album_title) - 1, len);
strncpy(album_title, ptr, len);
album_title[len]='\0';
}
mp_tmsg(MSGT_DEMUX, MSGL_STATUS, "Parse OK, found: %s\n", album_title);
return 0;
}
static int cddb_query_parse(HTTP_header_t *http_hdr, cddb_data_t *cddb_data)
{
char album_title[100];
char *ptr = NULL;
int ret, status;
ret = sscanf(http_hdr->body, "%d ", &status);
if (ret != 1) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "parse error");
return -1;
}
switch (status) {
case 200:
// Found exact match
ret = sscanf(http_hdr->body, "%d %99s %08lx %99s", &status,
cddb_data->category, &(cddb_data->disc_id), album_title);
if (ret != 4) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "parse error");
return -1;
}
ptr = strstr(http_hdr->body, album_title);
if (ptr != NULL) {
char *ptr2;
int len;
ptr2 = strstr(ptr, "\n");
if (ptr2 == NULL) {
len = (http_hdr->body_size)-(ptr-(http_hdr->body));
} else {
len = ptr2-ptr+1;
}
len = FFMIN(sizeof(album_title) - 1, len);
strncpy(album_title, ptr, len);
album_title[len]='\0';
}
mp_tmsg(MSGT_DEMUX, MSGL_STATUS, "Parse OK, found: %s\n", album_title);
return cddb_request_titles(cddb_data);
case 202:
// No match found
mp_tmsg(MSGT_DEMUX, MSGL_WARN, "Album not found.\n");
break;
case 210:
// Found exact matches, list follows
cddb_parse_matches_list(http_hdr, cddb_data);
return cddb_request_titles(cddb_data);
/*
body=[210 Found exact matches, list follows (until terminating `.')
misc c711930d Santana / Supernatural
rock c711930d Santana / Supernatural
blues c711930d Santana / Supernatural
.]
*/
case 211:
// Found inexact matches, list follows
cddb_parse_matches_list(http_hdr, cddb_data);
return cddb_request_titles(cddb_data);
case 500:
mp_tmsg(MSGT_DEMUX, MSGL_FIXME,
"Server returns: Command syntax error\n");
break;
default:
mp_tmsg(MSGT_DEMUX, MSGL_FIXME, "unhandled code\n");
}
return -1;
}
static int cddb_proto_level_parse(HTTP_header_t *http_hdr, cddb_data_t *cddb_data)
{
int max;
int ret, status;
char *ptr;
ret = sscanf(http_hdr->body, "%d ", &status);
if (ret != 1) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "parse error");
return -1;
}
switch (status) {
case 210:
ptr = strstr(http_hdr->body, "max proto:");
if (ptr == NULL) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "parse error");
return -1;
}
ret = sscanf(ptr, "max proto: %d", &max);
if (ret != 1) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "parse error");
return -1;
}
cddb_data->freedb_proto_level = max;
return 0;
default:
mp_tmsg(MSGT_DEMUX, MSGL_FIXME, "unhandled code\n");
}
return -1;
}
static int cddb_get_proto_level(cddb_data_t *cddb_data)
{
return cddb_http_request("stat", cddb_proto_level_parse, cddb_data);
}
static void cddb_create_hello(cddb_data_t *cddb_data)
{
char host_name[51];
char *user_name;
if (cddb_data->anonymous) { // Default is anonymous
/* Note from Eduardo Pérez Ureta <eperez@it.uc3m.es> :
* We don't send current user/host name in hello to prevent spam.
* Software that sends this is considered spyware
* that most people don't like.
*/
user_name = "anonymous";
strcpy(host_name, "localhost");
} else {
if (gethostname(host_name, 50) < 0) {
strcpy(host_name, "localhost");
}
user_name = getenv("LOGNAME");
}
snprintf(cddb_data->cddb_hello, sizeof(cddb_data->cddb_hello),
"&hello=%s+%s+%s",
user_name, host_name, mplayer_version);
}
static int cddb_retrieve(cddb_data_t *cddb_data)
{
char offsets[1024], command[1024];
char *ptr;
unsigned int i, time_len;
int ret;
ptr = offsets;
for (i = 0; i < cddb_data->tracks ; i++) {
unsigned space = sizeof(offsets) - (ptr - offsets);
if (space < 40) break;
ptr += snprintf(ptr, space, "%d+", cdtoc[i].frame);
}
ptr[0] = 0;
time_len = (cdtoc[cddb_data->tracks].frame)/75;
cddb_data->freedb_server = DEFAULT_FREEDB_SERVER;
cddb_data->freedb_proto_level = 1;
cddb_data->xmcd_file = NULL;
cddb_create_hello(cddb_data);
if (cddb_get_proto_level(cddb_data) < 0) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "Failed to get the protocol level.\n");
return -1;
}
snprintf(command, sizeof(command), "cddb+query+%08lx+%d+%s%d", cddb_data->disc_id,
cddb_data->tracks, offsets, time_len);
ret = cddb_http_request(command, cddb_query_parse, cddb_data);
if (ret < 0)
return -1;
free(cddb_data->cache_dir);
return 0;
}
int cddb_resolve(const char *dev, char **xmcd_file)
{
char cddb_cache_dir[] = DEFAULT_CACHE_DIR;
char *home_dir = NULL;
cddb_data_t cddb_data;
if (cdtoc_last_track <= 0) {
cdtoc_last_track = read_toc(dev);
if (cdtoc_last_track < 0) {
mp_tmsg(MSGT_OPEN, MSGL_ERR, "Failed to open %s device.\n", dev);
return -1;
}
}
cddb_data.tracks = cdtoc_last_track;
cddb_data.disc_id = cddb_discid(cddb_data.tracks);
cddb_data.anonymous = 1; // Don't send user info by default
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CDDB_DISCID=%08lx\n",
cddb_data.disc_id);
// Check if there is a CD in the drive
// FIXME: That's not really a good way to check
if (cddb_data.disc_id == 0) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "No CD in the drive.\n");
return -1;
}
home_dir = getenv("HOME");
#ifdef __MINGW32__
if (home_dir == NULL)
home_dir = getenv("USERPROFILE");
if (home_dir == NULL)
home_dir = getenv("HOMEPATH");
// Last resort, store the cddb cache in the mplayer directory
if (home_dir == NULL)
home_dir = (char *)get_path("");
#endif
if (home_dir == NULL) {
cddb_data.cache_dir = NULL;
} else {
unsigned len = strlen(home_dir) + strlen(cddb_cache_dir) + 1;
cddb_data.cache_dir = malloc(len);
if (cddb_data.cache_dir == NULL) {
mp_tmsg(MSGT_DEMUX, MSGL_ERR, "Memory allocation failed.\n");
return -1;
}
snprintf(cddb_data.cache_dir, len, "%s%s", home_dir, cddb_cache_dir);
}
// Check for a cached file
if (cddb_read_cache(&cddb_data) < 0) {
// No Cache found
if (cddb_retrieve(&cddb_data) < 0) {
return -1;
}
}
if (cddb_data.xmcd_file != NULL) {
// printf("%s\n", cddb_data.xmcd_file);
*xmcd_file = cddb_data.xmcd_file;
return 0;
}
return -1;
}
/***************
* xmcd parser *
***************/
static char *xmcd_parse_dtitle(cd_info_t *cd_info, char *line)
{
char *ptr, *album;
ptr = strstr(line, "DTITLE=");
if (ptr != NULL) {
ptr += 7;
album = strstr(ptr, "/");
if (album == NULL)
return NULL;
cd_info->album = malloc(strlen(album + 2) + 1);
if (cd_info->album == NULL) {
return NULL;
}
strcpy(cd_info->album, album + 2);
album--;
album[0] = '\0';
cd_info->artist = malloc(strlen(ptr) + 1);
if (cd_info->artist == NULL) {
return NULL;
}
strcpy(cd_info->artist, ptr);
}
return ptr;
}
static char *xmcd_parse_dgenre(cd_info_t *cd_info, char *line)
{
char *ptr;
ptr = strstr(line, "DGENRE=");
if (ptr != NULL) {
ptr += 7;
cd_info->genre = malloc(strlen(ptr)+1);
if (cd_info->genre == NULL) {
return NULL;
}
strcpy(cd_info->genre, ptr);
}
return ptr;
}
static char *xmcd_parse_ttitle(cd_info_t *cd_info, char *line)
{
unsigned int track_nb;
unsigned long sec, off;
char *ptr;
ptr = strstr(line, "TTITLE");
if (ptr != NULL) {
ptr += 6;
// Here we point to the track number
track_nb = atoi(ptr);
ptr = strstr(ptr, "=");
if (ptr == NULL)
return NULL;
ptr++;
sec = cdtoc[track_nb].frame;
off = cdtoc[track_nb + 1].frame - sec + 1;
cd_info_add_track(cd_info, ptr, track_nb + 1,
(unsigned int) (off / (60 * 75)),
(unsigned int) ((off / 75) % 60),
(unsigned int) (off % 75),
sec, off);
}
return ptr;
}
cd_info_t *cddb_parse_xmcd(char *xmcd_file)
{
cd_info_t *cd_info = NULL;
int length, pos = 0;
char *ptr, *ptr2;
unsigned int audiolen;
if (xmcd_file == NULL)
return NULL;
cd_info = cd_info_new();
if (cd_info == NULL) {
return NULL;
}
length = strlen(xmcd_file);
ptr = xmcd_file;
while (ptr != NULL && pos < length) {
// Read a line
ptr2 = ptr;
while(ptr2[0] != '\0' && ptr2[0] != '\r' && ptr2[0] != '\n')
ptr2++;
if (ptr2[0] == '\0') {
break;
}
ptr2[0] = '\0';
// Ignore comments
if (ptr[0] != '#') {
// Search for the album title
if (xmcd_parse_dtitle(cd_info, ptr))
;
// Search for the genre
else if (xmcd_parse_dgenre(cd_info, ptr))
;
// Search for a track title
else if (xmcd_parse_ttitle(cd_info, ptr))
audiolen++; // <-- audiolen++ to shut up gcc warning
}
if (ptr2[1] == '\n')
ptr2++;
pos = (ptr2 + 1) - ptr;
ptr = ptr2 + 1;
}
audiolen = cdtoc[cd_info->nb_tracks].frame-cdtoc[0].frame;
cd_info->min = (unsigned int) (audiolen / (60 * 75));
cd_info->sec = (unsigned int) ((audiolen / 75) % 60);
cd_info->msec = (unsigned int) (audiolen % 75);
return cd_info;
}
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