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RetroArch/tasks/task_content_disc.c
libretroadmin bdc398d79f - Safer code - use strlcpy where possible instead of manual character 
assignments for strings longer than 2 chars
- Use strlcpy concatenation instead of strlcat
- Make sure that what remains of iteration of the '_len' variable
for manual char assignment
is done in a safer way so mistakes are less possible
2023-06-20 16:33:55 +02:00

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2011-2021 - Daniel De Matteis
* Copyright (C) 2016-2019 - Brad Parker
*
* RetroArch 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 Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch 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 RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <sys/types.h>
#include <string.h>
#include <time.h>
#include <file/file_path.h>
#include <queues/task_queue.h>
#include <string/stdstring.h>
#ifdef _WIN32
#ifdef _XBOX
#include <xtl.h>
#define setmode _setmode
#define INVALID_FILE_ATTRIBUTES -1
#else
#include <io.h>
#include <fcntl.h>
#include <windows.h>
#endif
#endif
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#include <boolean.h>
#include <compat/strl.h>
#include <compat/posix_string.h>
#include <string/stdstring.h>
#include <vfs/vfs_implementation.h>
#ifdef HAVE_CDROM
#include <vfs/vfs_implementation_cdrom.h>
#endif
#include <retro_miscellaneous.h>
#include <streams/file_stream.h>
#include <string/stdstring.h>
#include "task_content.h"
#include "tasks_internal.h"
#include "../configuration.h"
#include "../msg_hash.h"
#include "../verbosity.h"
#ifdef HAVE_CDROM
enum cdrom_dump_state
{
DUMP_STATE_TOC_PENDING = 0,
DUMP_STATE_WRITE_CUE,
DUMP_STATE_NEXT_TRACK,
DUMP_STATE_READ_TRACK
};
typedef struct
{
int64_t cur_track_bytes;
int64_t track_written_bytes;
int64_t disc_total_bytes;
int64_t disc_read_bytes;
RFILE *file;
RFILE *output_file;
libretro_vfs_implementation_file *stream;
const cdrom_toc_t *toc;
enum cdrom_dump_state state;
unsigned char cur_track;
char drive_letter[2];
char cdrom_path[64];
char title[512];
bool next;
} task_cdrom_dump_state_t;
static void task_cdrom_dump_handler(retro_task_t *task)
{
task_cdrom_dump_state_t *state = (task_cdrom_dump_state_t*)task->state;
if (task_get_progress(task) == 100)
{
if (state->file)
filestream_close(state->file);
if (state->output_file)
filestream_close(state->output_file);
state->file = NULL;
state->output_file = NULL;
task_set_finished(task, true);
RARCH_LOG("[CDROM]: Dump finished.\n");
return;
}
switch (state->state)
{
case DUMP_STATE_TOC_PENDING:
{
/* open cuesheet file from drive */
char cue_path[PATH_MAX_LENGTH] = {0};
cdrom_device_fillpath(cue_path, sizeof(cue_path), state->drive_letter[0], 0, true);
state->file = filestream_open(cue_path, RETRO_VFS_FILE_ACCESS_READ, 0);
if (!state->file)
{
RARCH_ERR("[CDROM]: Error opening file for reading: %s\n", cue_path);
task_set_progress(task, 100);
task_free_title(task);
task_set_title(task, strdup(msg_hash_to_str(MENU_ENUM_LABEL_VALUE_QT_FILE_READ_OPEN_FAILED)));
return;
}
state->state = DUMP_STATE_WRITE_CUE;
break;
}
case DUMP_STATE_WRITE_CUE:
{
size_t _len;
char output_file[PATH_MAX_LENGTH];
char cue_filename[PATH_MAX_LENGTH];
settings_t *settings = config_get_ptr();
const char *directory_core_assets = settings
? settings->paths.directory_core_assets : NULL;
/* write cuesheet to a file */
int64_t cue_size = filestream_get_size(state->file);
char *cue_data = (char*)calloc(1, cue_size);
filestream_read(state->file, cue_data, cue_size);
state->stream = filestream_get_vfs_handle(state->file);
state->toc = retro_vfs_file_get_cdrom_toc();
if (cdrom_has_atip(state->stream))
RARCH_LOG("[CDROM]: This disc is not genuine.\n");
filestream_close(state->file);
_len = strlcpy(cue_filename,
state->title, sizeof(cue_filename));
strlcpy(cue_filename + _len,
".cue",
sizeof(cue_filename) - _len);
fill_pathname_join_special(output_file,
directory_core_assets, cue_filename, sizeof(output_file));
{
RFILE *file = filestream_open(output_file, RETRO_VFS_FILE_ACCESS_WRITE, 0);
unsigned char point = 0;
if (!file)
{
RARCH_ERR("[CDROM]: Error opening file for writing: %s\n", output_file);
task_set_progress(task, 100);
task_free_title(task);
task_set_title(task, strdup(msg_hash_to_str(MENU_ENUM_LABEL_VALUE_QT_FILE_WRITE_OPEN_FAILED)));
return;
}
for (point = 1; point <= state->toc->num_tracks; point++)
{
const char *track_type = "MODE1/2352";
char track_filename[PATH_MAX_LENGTH];
state->disc_total_bytes += state->toc->track[point - 1].track_bytes;
track_filename[0] = '\0';
if (state->toc->track[point - 1].audio)
track_type = "AUDIO";
else if (state->toc->track[point - 1].mode == 1)
track_type = "MODE1/2352";
else if (state->toc->track[point - 1].mode == 2)
track_type = "MODE2/2352";
snprintf(track_filename, sizeof(track_filename), "%s (Track %02d).bin", state->title, point);
filestream_printf(file, "FILE \"%s\" BINARY\n", track_filename);
filestream_printf(file, " TRACK %02d %s\n", point, track_type);
{
unsigned pregap_lba_len = state->toc->track[point - 1].lba - state->toc->track[point - 1].lba_start;
if (state->toc->track[point - 1].audio && pregap_lba_len > 0)
{
unsigned char min = 0;
unsigned char sec = 0;
unsigned char frame = 0;
cdrom_lba_to_msf(pregap_lba_len, &min, &sec, &frame);
filestream_printf(file, " INDEX 00 00:00:00\n");
filestream_printf(file, " INDEX 01 %02u:%02u:%02u\n", (unsigned)min, (unsigned)sec, (unsigned)frame);
}
else
filestream_printf(file, " INDEX 01 00:00:00\n");
}
}
filestream_close(file);
}
state->file = NULL;
state->state = DUMP_STATE_NEXT_TRACK;
free(cue_data);
}
break;
case DUMP_STATE_NEXT_TRACK:
{
/* no file is open as we either just started or just finished a track, need to start dumping the next track */
state->cur_track++;
/* no more tracks to dump, we're done */
if (state->toc && state->cur_track > state->toc->num_tracks)
{
task_set_progress(task, 100);
return;
}
RARCH_LOG("[CDROM]: Dumping track %d...\n", state->cur_track);
memset(state->cdrom_path, 0, sizeof(state->cdrom_path));
cdrom_device_fillpath(state->cdrom_path, sizeof(state->cdrom_path), state->drive_letter[0], state->cur_track, false);
state->track_written_bytes = 0;
state->file = filestream_open(state->cdrom_path, RETRO_VFS_FILE_ACCESS_READ, 0);
/* open a new file for writing for this next track */
if (state->file)
{
char output_path[PATH_MAX_LENGTH];
char track_filename[PATH_MAX_LENGTH];
settings_t *settings = config_get_ptr();
const char *directory_core_assets = settings
? settings->paths.directory_core_assets : NULL;
track_filename[0] = '\0';
snprintf(track_filename, sizeof(track_filename), "%s (Track %02d).bin", state->title, state->cur_track);
state->cur_track_bytes = filestream_get_size(state->file);
fill_pathname_join_special(output_path,
directory_core_assets, track_filename, sizeof(output_path));
if (!(state->output_file = filestream_open(output_path, RETRO_VFS_FILE_ACCESS_WRITE, 0)))
{
RARCH_ERR("[CDROM]: Error opening file for writing: %s\n", output_path);
task_set_progress(task, 100);
task_free_title(task);
task_set_title(task, strdup(msg_hash_to_str(MENU_ENUM_LABEL_VALUE_QT_FILE_WRITE_OPEN_FAILED)));
return;
}
}
else
{
RARCH_ERR("[CDROM]: Error opening file for writing: %s\n", state->cdrom_path);
task_set_progress(task, 100);
task_free_title(task);
task_set_title(task, strdup(msg_hash_to_str(MENU_ENUM_LABEL_VALUE_QT_FILE_WRITE_OPEN_FAILED)));
return;
}
state->state = DUMP_STATE_READ_TRACK;
}
break;
case DUMP_STATE_READ_TRACK:
/* read data from track and write it to a file in chunks */
if (state->cur_track_bytes > state->track_written_bytes)
{
char data[2352 * 2] = {0};
int64_t read_bytes = filestream_read(state->file, data, sizeof(data));
int progress = 0;
if (read_bytes <= 0)
{
task_set_progress(task, 100);
task_free_title(task);
task_set_title(task, strdup(msg_hash_to_str(MSG_DISC_DUMP_FAILED_TO_READ_FROM_DRIVE)));
return;
}
state->track_written_bytes += read_bytes;
state->disc_read_bytes += read_bytes;
progress = (state->disc_read_bytes / (double)state->disc_total_bytes) * 100.0;
#ifdef CDROM_DEBUG
RARCH_LOG("[CDROM]: Read %" PRId64 " bytes, totalling %" PRId64 " of %" PRId64 " bytes. Progress: %d%%\n", read_bytes, state->track_written_bytes, state->cur_track_bytes, progress);
#endif
if (filestream_write(state->output_file, data, read_bytes) <= 0)
{
task_set_progress(task, 100);
task_free_title(task);
task_set_title(task, strdup(msg_hash_to_str(MSG_DISC_DUMP_FAILED_TO_WRITE_TO_DISK)));
return;
}
task_set_progress(task, progress);
}
else if (state->cur_track_bytes == state->track_written_bytes)
{
/* TODO: FIXME: this stops after only the first track */
if (state->file)
{
filestream_close(state->file);
state->file = NULL;
}
if (state->output_file)
{
filestream_close(state->output_file);
state->file = NULL;
}
state->state = DUMP_STATE_NEXT_TRACK;
}
break;
}
}
static void task_cdrom_dump_callback(retro_task_t *task,
void *task_data,
void *user_data, const char *error)
{
task_cdrom_dump_state_t *state = (task_cdrom_dump_state_t*)task->state;
if (state)
free(state);
}
void task_push_cdrom_dump(const char *drive)
{
retro_task_t *task = task_init();
task_cdrom_dump_state_t *state = (task_cdrom_dump_state_t*)calloc(1, sizeof(*state));
state->drive_letter[0] = drive[0];
state->next = true;
state->cur_track = 0;
state->state = DUMP_STATE_TOC_PENDING;
fill_str_dated_filename(state->title, "cdrom", NULL, sizeof(state->title));
task->state = state;
task->handler = task_cdrom_dump_handler;
task->callback = task_cdrom_dump_callback;
task->title = strdup(msg_hash_to_str(MSG_DUMPING_DISC));
RARCH_LOG("[CDROM]: Starting disc dump...\n");
task_queue_push(task);
}
#endif
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