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Packit |
dd8086 |
/*
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dd8086 |
Copyright (C) 2004-2006, 2008, 2012-2013, 2017 Rocky Bernstein <rocky@gnu.org>
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dd8086 |
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dd8086 |
This program is free software: you can redistribute it and/or modify
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dd8086 |
it under the terms of the GNU General Public License as published by
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Packit |
dd8086 |
the Free Software Foundation, either version 3 of the License, or
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dd8086 |
(at your option) any later version.
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dd8086 |
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dd8086 |
This program is distributed in the hope that it will be useful,
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dd8086 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
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dd8086 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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|
Packit |
dd8086 |
GNU General Public License for more details.
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dd8086 |
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Packit |
dd8086 |
You should have received a copy of the GNU General Public License
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dd8086 |
along with this program. If not, see <http://www.gnu.org/licenses/>.
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Packit |
dd8086 |
*/
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Packit |
dd8086 |
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Packit |
dd8086 |
/* Program to read ISO-9660 images. */
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Packit |
dd8086 |
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Packit |
dd8086 |
#include "util.h"
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Packit |
dd8086 |
#include "portable.h"
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dd8086 |
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dd8086 |
#ifdef HAVE_CONFIG_H
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dd8086 |
# include "config.h"
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dd8086 |
#endif
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dd8086 |
#ifdef HAVE_SYS_TYPES_H
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dd8086 |
#include <sys/types.h>
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dd8086 |
#endif
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dd8086 |
#include <cdio/cdio.h>
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dd8086 |
#include <cdio/iso9660.h>
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dd8086 |
#include <cdio/udf.h>
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dd8086 |
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dd8086 |
#ifdef HAVE_STDIO_H
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dd8086 |
#include <stdio.h>
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dd8086 |
#endif
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dd8086 |
#ifdef HAVE_ERRNO_H
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dd8086 |
#include <errno.h>
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dd8086 |
#endif
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dd8086 |
#ifdef HAVE_STRING_H
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dd8086 |
#include <string.h>
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dd8086 |
#endif
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dd8086 |
#ifdef HAVE_UNISTD_H
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dd8086 |
#include <unistd.h>
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dd8086 |
#endif
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dd8086 |
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dd8086 |
#include "getopt.h"
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dd8086 |
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dd8086 |
#define CEILING(x, y) ((x+(y-1))/y)
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dd8086 |
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dd8086 |
/* Used by `main' to communicate with `parse_opt'. And global options
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dd8086 |
*/
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dd8086 |
static struct arguments
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dd8086 |
{
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dd8086 |
char *file_name;
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dd8086 |
char *output_file;
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dd8086 |
char *iso9660_image;
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dd8086 |
int debug_level;
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dd8086 |
int no_header;
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dd8086 |
int ignore;
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dd8086 |
int udf;
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Packit |
dd8086 |
} opts;
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dd8086 |
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dd8086 |
/* Parse a options. */
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dd8086 |
static bool
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dd8086 |
parse_options (int argc, char *argv[])
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dd8086 |
{
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dd8086 |
|
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Packit |
dd8086 |
int opt;
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dd8086 |
int rc = EXIT_FAILURE;
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dd8086 |
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dd8086 |
/* Configuration option codes */
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dd8086 |
enum {
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dd8086 |
OP_HANDLED = 0,
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dd8086 |
OP_VERSION=1,
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dd8086 |
OP_USAGE
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dd8086 |
};
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dd8086 |
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dd8086 |
static const char helpText[] =
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dd8086 |
"Usage: %s [OPTION...]\n"
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dd8086 |
" -d, --debug=INT Set debugging to LEVEL.\n"
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|
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dd8086 |
" -i, --image=FILE Read from ISO-9660 image. This option is mandatory\n"
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dd8086 |
" -e, --extract=FILE Extract FILE from ISO-9660 image. This option is\n"
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dd8086 |
" mandatory.\n"
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dd8086 |
" -k, --ignore Ignore read error(s), i.e. keep going\n"
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dd8086 |
" --no-header Don't display header and copyright (for\n"
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dd8086 |
" regression testing)\n"
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dd8086 |
" -o, --output-file=FILE Output file. This option is mandatory.\n"
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dd8086 |
" -U --udf Contents are in UDF format\n"
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dd8086 |
" -V, --version display version and copyright information and exit\n"
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dd8086 |
"\n"
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dd8086 |
"Help options:\n"
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dd8086 |
" -?, --help Show this help message\n"
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dd8086 |
" --usage Display brief usage message\n";
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dd8086 |
|
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dd8086 |
static const char usageText[] =
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dd8086 |
"Usage: %s [-d|--debug INT] [-i|--image FILE] [-e|--extract FILE]\n"
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|
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dd8086 |
" [--no-header] [-o|--output-file FILE] [-U|--udf]\n"
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dd8086 |
" [-V|--version] [-?|--help] [--usage]\n";
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dd8086 |
|
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Packit |
dd8086 |
/* Command-line options */
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dd8086 |
static const char* optionsString = "d:i:e:o:VUk?";
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dd8086 |
static const struct option optionsTable[] = {
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|
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dd8086 |
{"debug", required_argument, NULL, 'd' },
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dd8086 |
{"image", required_argument, NULL, 'i' },
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dd8086 |
{"extract", required_argument, NULL, 'e' },
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dd8086 |
{"no-header", no_argument, &opts.no_header, 1 },
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Packit |
dd8086 |
{"ignore", no_argument, &opts.ignore, 'k' },
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|
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dd8086 |
{"output-file", required_argument, NULL, 'o' },
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|
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dd8086 |
{"udf", no_argument, &opts.udf, 'U' },
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|
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dd8086 |
{"version", no_argument, NULL, 'V' },
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|
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dd8086 |
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dd8086 |
{"help", no_argument, NULL, '?' },
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dd8086 |
{"usage", no_argument, NULL, OP_USAGE },
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dd8086 |
{ NULL, 0, NULL, 0 }
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|
Packit |
dd8086 |
};
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|
Packit |
dd8086 |
|
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Packit |
dd8086 |
program_name = strrchr(argv[0],'/');
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|
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dd8086 |
program_name = program_name ? strdup(program_name+1) : strdup(argv[0]);
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|
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dd8086 |
|
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dd8086 |
while ((opt = getopt_long(argc, argv, optionsString, optionsTable, NULL)) != -1)
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|
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dd8086 |
switch (opt)
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dd8086 |
{
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dd8086 |
case 'd': opts.debug_level = atoi(optarg); break;
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dd8086 |
case 'i': opts.iso9660_image = strdup(optarg); break;
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|
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dd8086 |
case 'k': opts.ignore = 1; break;
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dd8086 |
case 'e': opts.file_name = strdup(optarg); break;
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dd8086 |
case 'o': opts.output_file = strdup(optarg); break;
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dd8086 |
case 'U': opts.udf = 1; break;
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dd8086 |
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dd8086 |
case 'V':
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dd8086 |
print_version(program_name, CDIO_VERSION, 0, true);
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dd8086 |
rc = EXIT_SUCCESS;
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dd8086 |
goto error_exit;
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dd8086 |
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Packit |
dd8086 |
case '?':
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dd8086 |
fprintf(stdout, helpText, program_name);
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dd8086 |
rc = EXIT_INFO;
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dd8086 |
goto error_exit;
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|
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dd8086 |
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Packit |
dd8086 |
case OP_USAGE:
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dd8086 |
fprintf(stderr, usageText, program_name);
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dd8086 |
rc = EXIT_INFO;
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dd8086 |
goto error_exit;
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dd8086 |
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Packit |
dd8086 |
case OP_HANDLED:
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dd8086 |
break;
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dd8086 |
}
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dd8086 |
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dd8086 |
if (optind < argc) {
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dd8086 |
const char *remaining_arg = argv[optind++];
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dd8086 |
if (opts.iso9660_image != NULL) {
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dd8086 |
report( stderr, "%s: Source specified as --image %s and as %s\n",
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dd8086 |
program_name, opts.iso9660_image, remaining_arg );
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Packit |
dd8086 |
goto error_exit;
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dd8086 |
}
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dd8086 |
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Packit |
dd8086 |
opts.iso9660_image = strdup(remaining_arg);
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|
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dd8086 |
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Packit |
dd8086 |
if (optind < argc ) {
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dd8086 |
report( stderr,
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|
Packit |
dd8086 |
"%s: use only one unnamed argument for the ISO 9660 "
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|
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dd8086 |
"image name\n",
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Packit |
dd8086 |
program_name );
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Packit |
dd8086 |
goto error_exit;
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|
Packit |
dd8086 |
}
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|
Packit |
dd8086 |
}
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|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
if (NULL == opts.iso9660_image) {
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|
Packit |
dd8086 |
report( stderr, "%s: you need to specify an ISO-9660 image name.\n",
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|
Packit |
dd8086 |
program_name );
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|
Packit |
dd8086 |
report( stderr, "%s: Use option --image or try --help.\n",
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|
Packit |
dd8086 |
program_name );
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Packit |
dd8086 |
goto error_exit;
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|
Packit |
dd8086 |
}
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|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
if (NULL == opts.file_name) {
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|
Packit |
dd8086 |
report( stderr, "%s: you need to specify a filename to extract.\n",
|
|
Packit |
dd8086 |
program_name );
|
|
Packit |
dd8086 |
report( stderr, "%s: Use option --extract or try --help.\n",
|
|
Packit |
dd8086 |
program_name );
|
|
Packit |
dd8086 |
goto error_exit;
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|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
if (NULL == opts.output_file) {
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|
Packit |
dd8086 |
report( stderr,
|
|
Packit |
dd8086 |
"%s: you need to specify a place write filename extraction to.\n",
|
|
Packit |
dd8086 |
program_name );
|
|
Packit |
dd8086 |
report( stderr, "%s: Use option --output-file or try --help.\n",
|
|
Packit |
dd8086 |
program_name );
|
|
Packit |
dd8086 |
goto error_exit;
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|
Packit |
dd8086 |
}
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|
Packit |
dd8086 |
|
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Packit |
dd8086 |
return true;
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|
Packit |
dd8086 |
error_exit:
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|
Packit |
dd8086 |
free(program_name);
|
|
Packit |
dd8086 |
exit(rc);
|
|
Packit |
dd8086 |
}
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|
Packit |
dd8086 |
|
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Packit |
dd8086 |
static void
|
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Packit |
dd8086 |
init(void)
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|
Packit |
dd8086 |
{
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Packit |
dd8086 |
opts.debug_level = 0;
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|
Packit |
dd8086 |
opts.ignore = 0;
|
|
Packit |
dd8086 |
opts.file_name = NULL;
|
|
Packit |
dd8086 |
opts.output_file = NULL;
|
|
Packit |
dd8086 |
opts.iso9660_image = NULL;
|
|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
static int read_iso_file(const char *iso_name, const char *src,
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dd8086 |
FILE *outfd, size_t *bytes_written)
|
|
Packit |
dd8086 |
{
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|
Packit |
dd8086 |
iso9660_stat_t *statbuf;
|
|
Packit |
dd8086 |
int i;
|
|
Packit |
dd8086 |
iso9660_t *iso;
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
iso = iso9660_open (iso_name);
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
if (NULL == iso) {
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|
Packit |
dd8086 |
report(stderr,
|
|
Packit |
dd8086 |
"%s: Sorry, couldn't open ISO-9660 image file '%s'.\n",
|
|
Packit |
dd8086 |
program_name, src);
|
|
Packit |
dd8086 |
return 1;
|
|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
statbuf = iso9660_ifs_stat_translate (iso, src);
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
if (NULL == statbuf)
|
|
Packit |
dd8086 |
{
|
|
Packit |
dd8086 |
report(stderr,
|
|
Packit |
dd8086 |
"%s: Could not get ISO-9660 file information out of %s"
|
|
Packit |
dd8086 |
" for file %s.\n",
|
|
Packit |
dd8086 |
program_name, iso_name, src);
|
|
Packit |
dd8086 |
report(stderr,
|
|
Packit |
dd8086 |
"%s: iso-info may be able to show the contents of %s.\n",
|
|
Packit |
dd8086 |
program_name, iso_name);
|
|
Packit |
dd8086 |
return 2;
|
|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
/* Copy the blocks from the ISO-9660 filesystem to the local filesystem. */
|
|
Packit |
dd8086 |
for (i = 0; i < statbuf->size; i += ISO_BLOCKSIZE)
|
|
Packit |
dd8086 |
{
|
|
Packit |
dd8086 |
char buf[ISO_BLOCKSIZE];
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
memset (buf, 0, ISO_BLOCKSIZE);
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
if ( ISO_BLOCKSIZE != iso9660_iso_seek_read (iso, buf, statbuf->lsn
|
|
Packit |
dd8086 |
+ (i / ISO_BLOCKSIZE),
|
|
Packit |
dd8086 |
1) )
|
|
Packit |
dd8086 |
{
|
|
Packit |
dd8086 |
report(stderr, "Error reading ISO 9660 file at lsn %lu\n",
|
|
Packit |
dd8086 |
(long unsigned int) statbuf->lsn + (i / ISO_BLOCKSIZE));
|
|
Packit |
dd8086 |
if (!opts.ignore) return 4;
|
|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
fwrite (buf, ISO_BLOCKSIZE, 1, outfd);
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
if (ferror (outfd))
|
|
Packit |
dd8086 |
{
|
|
Packit |
dd8086 |
perror ("fwrite()");
|
|
Packit |
dd8086 |
return 5;
|
|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
iso9660_close(iso);
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
*bytes_written = statbuf->size;
|
|
Packit |
dd8086 |
return 0;
|
|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
static int read_udf_file(const char *iso_name, const char *src,
|
|
Packit |
dd8086 |
FILE *outfd, size_t *bytes_written)
|
|
Packit |
dd8086 |
{
|
|
Packit |
dd8086 |
udf_t *p_udf;
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
p_udf = udf_open (iso_name);
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
if (NULL == p_udf) {
|
|
Packit |
dd8086 |
fprintf(stderr, "Sorry, couldn't open %s as something using UDF\n",
|
|
Packit |
dd8086 |
iso_name);
|
|
Packit |
dd8086 |
return 1;
|
|
Packit |
dd8086 |
} else {
|
|
Packit |
dd8086 |
udf_dirent_t *p_udf_root = udf_get_root(p_udf, true, 0);
|
|
Packit |
dd8086 |
udf_dirent_t *p_udf_file = NULL;
|
|
Packit |
dd8086 |
if (NULL == p_udf_root) {
|
|
Packit |
dd8086 |
fprintf(stderr, "Sorry, couldn't find / in %s\n",
|
|
Packit |
dd8086 |
iso_name);
|
|
Packit |
dd8086 |
return 1;
|
|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
p_udf_file = udf_fopen(p_udf_root, src);
|
|
Packit |
dd8086 |
if (!p_udf_file) {
|
|
Packit |
dd8086 |
fprintf(stderr, "Sorry, couldn't find %s in %s\n",
|
|
Packit |
dd8086 |
src, iso_name);
|
|
Packit |
dd8086 |
udf_dirent_free(p_udf_root);
|
|
Packit |
dd8086 |
return 2;
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
{
|
|
Packit |
dd8086 |
uint64_t i_file_length = udf_get_file_length(p_udf_file);
|
|
Packit |
dd8086 |
const unsigned int i_blocks = (unsigned int) CEILING(i_file_length, UDF_BLOCKSIZE);
|
|
Packit |
dd8086 |
unsigned int i;
|
|
Packit |
dd8086 |
for (i = 0; i < i_blocks ; i++) {
|
|
Packit |
dd8086 |
char buf[UDF_BLOCKSIZE] = {'\0',};
|
|
Packit |
dd8086 |
ssize_t i_read = udf_read_block(p_udf_file, buf, 1);
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
if ( i_read < 0 ) {
|
|
Packit |
dd8086 |
fprintf(stderr, "Error reading UDF file %s at block %u\n",
|
|
Packit |
dd8086 |
src, i);
|
|
Packit |
dd8086 |
free(p_udf_file);
|
|
Packit |
dd8086 |
udf_dirent_free(p_udf_root);
|
|
Packit |
dd8086 |
return 4;
|
|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
fwrite (buf, i_read, 1, outfd);
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
if (ferror (outfd)) {
|
|
Packit |
dd8086 |
perror ("fwrite()");
|
|
Packit |
dd8086 |
free(p_udf_file);
|
|
Packit |
dd8086 |
udf_dirent_free(p_udf_root);
|
|
Packit |
dd8086 |
return 5;
|
|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
free(p_udf_file);
|
|
Packit |
dd8086 |
udf_dirent_free(p_udf_root);
|
|
Packit |
dd8086 |
udf_close(p_udf);
|
|
Packit |
dd8086 |
*bytes_written = i_file_length;
|
|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
return 0;
|
|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
int
|
|
Packit |
dd8086 |
main(int argc, char *argv[])
|
|
Packit |
dd8086 |
{
|
|
Packit |
dd8086 |
FILE *outfd;
|
|
Packit |
dd8086 |
int ret;
|
|
Packit |
dd8086 |
size_t bytes_written = 0;
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
init();
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
/* Parse our arguments; every option seen by `parse_opt' will
|
|
Packit |
dd8086 |
be reflected in `arguments'. */
|
|
Packit |
dd8086 |
if (!parse_options(argc, argv)) {
|
|
Packit |
dd8086 |
report(stderr,
|
|
Packit |
dd8086 |
"error while parsing command line - try --help\n");
|
|
Packit |
dd8086 |
return 2;
|
|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
if (!(outfd = fopen (opts.output_file, "wb")))
|
|
Packit |
dd8086 |
{
|
|
Packit |
dd8086 |
report(stderr,
|
|
Packit |
dd8086 |
"%s: Could not open %s for writing: %s\n",
|
|
Packit |
dd8086 |
program_name, opts.output_file, strerror(errno));
|
|
Packit |
dd8086 |
return 3;
|
|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
if (opts.udf) {
|
|
Packit |
dd8086 |
ret = read_udf_file (opts.iso9660_image, opts.file_name,
|
|
Packit |
dd8086 |
outfd, &bytes_written);
|
|
Packit |
dd8086 |
} else {
|
|
Packit |
dd8086 |
ret = read_iso_file (opts.iso9660_image, opts.file_name,
|
|
Packit |
dd8086 |
outfd, &bytes_written);
|
|
Packit |
dd8086 |
}
|
|
Packit |
dd8086 |
if (ret != 0) return ret;
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
fflush (outfd);
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
/* Make sure the file size has the exact same byte size. Without the
|
|
Packit |
dd8086 |
truncate below, the file will a multiple of ISO_BLOCKSIZE.
|
|
Packit |
dd8086 |
*/
|
|
Packit |
dd8086 |
if (ftruncate (fileno (outfd), bytes_written))
|
|
Packit |
dd8086 |
perror ("ftruncate()");
|
|
Packit |
dd8086 |
|
|
Packit |
dd8086 |
fclose (outfd);
|
|
Packit |
dd8086 |
return 0;
|
|
Packit |
dd8086 |
}
|