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/*
* This file has been modified for the cdrkit suite.
*
* The behaviour and appearence of the program code below can differ to a major
* extent from the version distributed by the original author(s).
*
* For details, see Changelog file distributed with the cdrkit package. If you
* received this file from another source then ask the distributing person for
* a log of modifications.
*
*/
/* @(#)isodebug.c 1.10 05/05/01 Copyright 1996-2004 J. Schilling */
/*
* Copyright (c) 1996-2004 J. Schilling
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* 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; see the file COPYING. If not, write to the Free Software
* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <mconfig.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <statdefs.h>
#include <stdxlib.h>
#include <unixstd.h>
#include <strdefs.h>
#include <standard.h>
#include <utypes.h>
#include <intcvt.h>
#include <schily.h>
#include "../scsi.h"
#include "../../wodim/defaults.h"
#define _delta(from, to) ((to) - (from) + 1)
#define VD_BOOT 0
#define VD_PRIMARY 1
#define VD_SUPPLEMENT 2
#define VD_PARTITION 3
#define VD_TERM 255
#define VD_ID "CD001"
struct iso9660_voldesc {
char vd_type [_delta(1, 1)];
char vd_id [_delta(2, 6)];
char vd_version [_delta(7, 7)];
char vd_fill [_delta(8, 2048)];
};
struct iso9660_boot_voldesc {
char vd_type [_delta(1, 1)];
char vd_id [_delta(2, 6)];
char vd_version [_delta(7, 7)];
char vd_bootsys [_delta(8, 39)];
char vd_bootid [_delta(40, 71)];
char vd_bootcode [_delta(72, 2048)];
};
struct iso9660_pr_voldesc {
char vd_type [_delta(1, 1)];
char vd_id [_delta(2, 6)];
char vd_version [_delta(7, 7)];
char vd_unused1 [_delta(8, 8)];
char vd_system_id [_delta(9, 40)];
char vd_volume_id [_delta(41, 72)];
char vd_unused2 [_delta(73, 80)];
char vd_volume_space_size [_delta(81, 88)];
char vd_unused3 [_delta(89, 120)];
char vd_volume_set_size [_delta(121, 124)];
char vd_volume_seq_number [_delta(125, 128)];
char vd_lbsize [_delta(129, 132)];
char vd_path_table_size [_delta(133, 140)];
char vd_pos_path_table_l [_delta(141, 144)];
char vd_opt_pos_path_table_l [_delta(145, 148)];
char vd_pos_path_table_m [_delta(149, 152)];
char vd_opt_pos_path_table_m [_delta(153, 156)];
char vd_root_dir [_delta(157, 190)];
char vd_volume_set_id [_delta(191, 318)];
char vd_publisher_id [_delta(319, 446)];
char vd_data_preparer_id [_delta(447, 574)];
char vd_application_id [_delta(575, 702)];
char vd_copyr_file_id [_delta(703, 739)];
char vd_abstr_file_id [_delta(740, 776)];
char vd_bibl_file_id [_delta(777, 813)];
char vd_create_time [_delta(814, 830)];
char vd_mod_time [_delta(831, 847)];
char vd_expiry_time [_delta(848, 864)];
char vd_effective_time [_delta(865, 881)];
char vd_file_struct_vers [_delta(882, 882)];
char vd_reserved1 [_delta(883, 883)];
char vd_application_use [_delta(884, 1395)];
char vd_fill [_delta(1396, 2048)];
};
#define GET_UBYTE(a) a_to_u_byte(a)
#define GET_SBYTE(a) a_to_byte(a)
#define GET_SHORT(a) a_to_u_2_byte(&((unsigned char *) (a))[0])
#define GET_BSHORT(a) a_to_u_2_byte(&((unsigned char *) (a))[2])
#define GET_INT(a) a_to_4_byte(&((unsigned char *) (a))[0])
#define GET_LINT(a) la_to_4_byte(&((unsigned char *) (a))[0])
#define GET_BINT(a) a_to_4_byte(&((unsigned char *) (a))[4])
#define infile in_image
FILE *infile = NULL;
static void usage(int excode);
static char *isodinfo(FILE *f);
static void
usage(int excode)
{
errmsgno(EX_BAD, "Usage: %s [options] image\n",
get_progname());
fprintf(stderr, "Options:\n");
fprintf(stderr, "\t-help,-h Print this help\n");
fprintf(stderr, "\t-version Print version info and exit\n");
fprintf(stderr, "\t-i filename Filename to read ISO-9660 image from\n");
fprintf(stderr, "\tdev=target SCSI target to use as CD/DVD-Recorder\n");
fprintf(stderr, "\nIf neither -i nor dev= are speficied, <image> is needed.\n");
exit(excode);
}
static char *
isodinfo(FILE *f)
{
static struct iso9660_voldesc vd;
struct iso9660_pr_voldesc *vp;
#ifndef USE_SCG
struct stat sb;
mode_t mode;
#endif
BOOL found = FALSE;
off_t sec_off = 16L;
#ifndef USE_SCG
/*
* First check if a bad guy tries to call isosize()
* with an unappropriate file descriptor.
* return -1 in this case.
*/
if (isatty(fileno(f)))
return (NULL);
if (fstat(fileno(f), &sb) < 0)
return (NULL);
mode = sb.st_mode & S_IFMT;
if (!S_ISREG(mode) && !S_ISBLK(mode) && !S_ISCHR(mode))
return (NULL);
#endif
vp = (struct iso9660_pr_voldesc *) &vd;
do {
#ifdef USE_SCG
readsecs(sec_off, &vd, 1);
#else
if (lseek(fileno(f), (off_t)(sec_off * 2048L), SEEK_SET) == -1)
return (NULL);
read(fileno(f), &vd, sizeof (vd));
#endif
sec_off++;
if (GET_UBYTE(vd.vd_type) == VD_PRIMARY) {
found = TRUE;
/* break;*/
}
} while (GET_UBYTE(vd.vd_type) != VD_TERM);
if (GET_UBYTE(vd.vd_type) != VD_TERM)
return (NULL);
#ifdef USE_SCG
readsecs(sec_off, &vd, 1);
#else
if (lseek(fileno(f), (off_t)(sec_off * 2048L), SEEK_SET) == -1)
return (NULL);
read(fileno(f), &vd, sizeof (vd));
#endif
sec_off++;
return ((char *)&vd);
}
int
main(int argc, char *argv[])
{
int cac;
char * const *cav;
char *opts = "help,h,version,i*,dev*";
BOOL help = FALSE;
BOOL prvers = FALSE;
char *filename = NULL;
char *devname = NULL;
char *p;
char *eol;
save_args(argc, argv);
cac = argc - 1;
cav = argv + 1;
if (getallargs(&cac, &cav, opts, &help, &help, &prvers,
&filename, &devname) < 0) {
errmsgno(EX_BAD, "Bad Option: '%s'\n", cav[0]);
usage(EX_BAD);
}
if (help)
usage(0);
if (prvers) {
printf("isodebug %s (%s)\n", CDRKIT_VERSION, HOST_SYSTEM);
exit(0);
}
cac = argc - 1;
cav = argv + 1;
if (filename == NULL && devname == NULL) {
if (getfiles(&cac, &cav, opts) != 0) {
filename = cav[0];
cac--, cav++;
}
}
if (getfiles(&cac, &cav, opts) != 0) {
errmsgno(EX_BAD, "Bad Argument: '%s'\n", cav[0]);
usage(EX_BAD);
}
if (filename != NULL && devname != NULL) {
errmsgno(EX_BAD, "Only one of -i or dev= allowed\n");
usage(EX_BAD);
}
#ifdef USE_SCG
if (filename == NULL && devname == NULL)
cdr_defaults(&devname, NULL, NULL, NULL);
#endif
if (filename == NULL && devname == NULL) {
errmsgno(EX_BAD, "ISO-9660 image not specified\n");
usage(EX_BAD);
}
if (filename != NULL)
infile = fopen(filename, "rb");
else
filename = devname;
if (infile != NULL) {
/* EMPTY */;
#ifdef USE_SCG
} else if (scsidev_open(filename) < 0) {
#else
} else {
#endif
comerr("Cannot open '%s'\n", filename);
}
p = isodinfo(infile);
if (p == NULL) {
printf("No ISO-9660 image debug info.\n");
} else if (strncmp(p, "MKI ", 4) == 0) {
eol = strchr(p, '\n');
if (eol)
*eol = '\0';
printf("ISO-9660 image created at %s\n", &p[4]);
if (eol) {
printf("\nCmdline: '%s'\n", &eol[1]);
}
}
return (0);
}
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