179 lines
4.2 KiB
C++
179 lines
4.2 KiB
C++
/*
|
|
$Id: isofile2.cpp,v 1.2 2008/03/24 15:30:57 karl Exp $
|
|
|
|
Copyright (C) 2006, 2008 Rocky Bernstein <rocky@gnu.org>
|
|
|
|
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/>.
|
|
*/
|
|
|
|
/* Simple program to show using libiso9660 to extract a file from a
|
|
CUE/BIN CD image.
|
|
|
|
If a single argument is given, it is used as the CUE file of a CD image
|
|
to use. Otherwise a compiled-in default image name (that
|
|
comes with the libcdio distribution) will be used.
|
|
|
|
This program can be compiled with either a C or C++ compiler. In
|
|
the distribution we prefer C++ just to make sure we haven't broken
|
|
things on the C++ side.
|
|
*/
|
|
|
|
/* This is the CD-image with an ISO-9660 filesystem */
|
|
#define ISO9660_IMAGE_PATH "../../../"
|
|
#define ISO9660_IMAGE ISO9660_IMAGE_PATH "test/isofs-m1.cue"
|
|
|
|
#define ISO9660_PATH "/"
|
|
#define ISO9660_FILENAME "COPYING"
|
|
#define LOCAL_FILENAME "copying"
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#include "portable.h"
|
|
|
|
#include <cdio++/cdio.hpp>
|
|
#include <cdio++/iso9660.hpp>
|
|
|
|
#ifdef HAVE_SYS_TYPES_H
|
|
#include <sys/types.h>
|
|
#endif
|
|
#ifdef HAVE_STDLIB_H
|
|
#include <stdlib.h>
|
|
#endif
|
|
#ifdef HAVE_STDIO_H
|
|
#include <stdio.h>
|
|
#endif
|
|
#ifdef HAVE_ERRNO_H
|
|
#include <errno.h>
|
|
#endif
|
|
#ifdef HAVE_STRING_H
|
|
#include <string.h>
|
|
#endif
|
|
#ifdef HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
#ifdef HAVE_SYS_TYPES_H
|
|
#include <sys/types.h>
|
|
#endif
|
|
|
|
#define CEILING(x, y) ((x+(y-1))/y)
|
|
|
|
#define my_exit(rc) \
|
|
fclose (p_outfd); \
|
|
delete (p_stat); \
|
|
delete (p_iso); \
|
|
return rc; \
|
|
|
|
|
|
int
|
|
main(int argc, const char *argv[])
|
|
{
|
|
ISO9660::Stat *p_stat;
|
|
FILE *p_outfd;
|
|
unsigned int i;
|
|
char const *psz_image;
|
|
char const *psz_fname;
|
|
char translated_name[256];
|
|
char untranslated_name[256] = ISO9660_PATH;
|
|
ISO9660::FS *p_iso = new ISO9660::FS;
|
|
|
|
if (argc > 3) {
|
|
printf("usage %s [CD-ROM-or-image [filename]]\n", argv[0]);
|
|
printf("Extracts filename from CD-ROM-or-image.\n");
|
|
return 1;
|
|
}
|
|
|
|
if (argc > 1)
|
|
psz_image = argv[1];
|
|
else
|
|
psz_image = ISO9660_IMAGE;
|
|
|
|
if (argc > 2)
|
|
psz_fname = argv[2];
|
|
else
|
|
psz_fname = ISO9660_FILENAME;
|
|
|
|
strcat(untranslated_name, psz_fname);
|
|
|
|
if (!p_iso->open(psz_image, DRIVER_UNKNOWN)) {
|
|
fprintf(stderr, "Sorry, couldn't open %s\n", psz_image);
|
|
return 1;
|
|
}
|
|
|
|
p_stat = p_iso->stat(psz_fname);
|
|
|
|
if (!p_stat)
|
|
{
|
|
fprintf(stderr,
|
|
"Could not get ISO-9660 file information for file %s\n",
|
|
untranslated_name);
|
|
delete(p_iso);
|
|
return 2;
|
|
}
|
|
|
|
iso9660_name_translate(psz_fname, translated_name);
|
|
|
|
if (!(p_outfd = fopen (translated_name, "wb")))
|
|
{
|
|
perror ("fopen()");
|
|
delete (p_stat);
|
|
delete (p_iso);
|
|
return 3;
|
|
}
|
|
|
|
/* Copy the blocks from the ISO-9660 filesystem to the local filesystem. */
|
|
{
|
|
const unsigned int i_blocks = CEILING(p_stat->p_stat->size, ISO_BLOCKSIZE);
|
|
for (i = 0; i < i_blocks; i ++)
|
|
{
|
|
char buf[ISO_BLOCKSIZE];
|
|
const lsn_t lsn = p_stat->p_stat->lsn + i;
|
|
|
|
memset (buf, 0, ISO_BLOCKSIZE);
|
|
|
|
try {
|
|
p_iso->readDataBlocks(buf, lsn, ISO_BLOCKSIZE);
|
|
}
|
|
catch ( DriverOpException e ) {
|
|
fprintf(stderr, "Error reading ISO 9660 file at lsn %lu:\n\t%s.\n",
|
|
(long unsigned int) lsn, e.get_msg());
|
|
my_exit(4);
|
|
}
|
|
|
|
fwrite (buf, ISO_BLOCKSIZE, 1, p_outfd);
|
|
|
|
if (ferror (p_outfd))
|
|
{
|
|
perror ("fwrite()");
|
|
my_exit(5);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
fflush (p_outfd);
|
|
|
|
/* Make sure the file size has the exact same byte size. Without the
|
|
truncate below, the file will a multiple of ISO_BLOCKSIZE.
|
|
*/
|
|
if (ftruncate (fileno (p_outfd), p_stat->p_stat->size))
|
|
perror ("ftruncate()");
|
|
|
|
printf("Extraction of file '%s' from '%s' successful.\n",
|
|
translated_name, untranslated_name);
|
|
|
|
my_exit(0);
|
|
}
|