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/*
Copyright (C) 2019 Thomas Schmitt
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 3 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/>.
*/
/* READ DVD STRUCTURE */
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <cdio/cdio.h>
#include <cdio/mmc.h>
static void
hexdump (FILE *stream, uint8_t * buffer, unsigned int len)
{
unsigned int i;
for (i = 0; i < len; i++, buffer++)
{
if (i % 16 == 0)
fprintf (stream, "0x%04x: ", i);
fprintf (stream, "%02x", *buffer);
if (i % 2 == 1)
fprintf (stream, " ");
if (i % 16 == 15) {
uint8_t *p;
fprintf (stream, " ");
for (p=buffer-15; p <= buffer; p++) {
fprintf(stream, "%c", isprint(*p) ? *p : '.');
}
fprintf (stream, "\n");
}
}
fprintf (stream, "\n");
fflush (stream);
}
int
main(int argc, const char *argv[])
{
CdIo_t *p_cdio;
const char *psz_drive = NULL;
/* Put in "/dev/sr0" here. */
if (argc > 1) psz_drive = argv[1];
p_cdio = cdio_open (psz_drive, DRIVER_DEVICE);
if (NULL == p_cdio) {
printf("Couldn't find DVD\n");
return 77;
} else {
int i_status; /* Result of MMC command */
uint8_t buf[200] = { 0, }; /* Place to hold returned data */
mmc_cdb_t cdb = {{0, }}; /* Command Descriptor Buffer */
int i;
CDIO_MMC_SET_COMMAND(cdb.field, CDIO_MMC_GPCMD_READ_DVD_STRUCTURE);
CDIO_MMC_SET_READ_LENGTH16(cdb.field, sizeof(buf));
for (i=0; i<=16; i++) {
cdb.field[7] = i; /* The format field */
i_status = mmc_run_cmd(p_cdio, 0, &cdb, SCSI_MMC_DATA_READ,
sizeof(buf), &buf);
if (i_status == 0) {
hexdump(stdout, buf, 200);
printf("============================================\n");
} else {
printf("Didn't get DVD Structure.\n");
}
}
}
cdio_destroy(p_cdio);
return 0;
}
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