135 lines
3.1 KiB
C
135 lines
3.1 KiB
C
/*
|
|
$Id: sample7.c,v 1.7 2004/04/03 11:50:58 rocky Exp $
|
|
|
|
Copyright (C) 2004 Rocky Bernstein <rocky@panix.com>
|
|
|
|
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 2 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, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
/* Simple program to show using libiso9660 to extract a file from an
|
|
ISO-9660 image.
|
|
*/
|
|
|
|
#if defined ( WIN32 )
|
|
#define ftruncate chsize
|
|
#endif
|
|
|
|
/* This is the ISO 9660 image. */
|
|
#define ISO9660_IMAGE_PATH "../"
|
|
#define ISO9660_IMAGE ISO9660_IMAGE_PATH "test/copying.iso"
|
|
|
|
#define LOCAL_FILENAME "copying"
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
#include <sys/types.h>
|
|
#include <cdio/cdio.h>
|
|
#include <cdio/iso9660.h>
|
|
|
|
#include <stdio.h>
|
|
|
|
#ifdef HAVE_ERRNO_H
|
|
#include <errno.h>
|
|
#endif
|
|
#ifdef HAVE_STDLIB_H
|
|
#include <stdlib.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 my_exit(rc) \
|
|
fclose (outfd); \
|
|
free(statbuf); \
|
|
iso9660_close(iso); \
|
|
return rc; \
|
|
|
|
int
|
|
main(int argc, const char *argv[])
|
|
{
|
|
iso9660_stat_t *statbuf;
|
|
FILE *outfd;
|
|
int i;
|
|
|
|
iso9660_t *iso = iso9660_open (ISO9660_IMAGE);
|
|
|
|
if (NULL == iso) {
|
|
fprintf(stderr, "Sorry, couldn't open ISO 9660 image %s\n", ISO9660_IMAGE);
|
|
return 1;
|
|
}
|
|
|
|
statbuf = iso9660_ifs_stat_translate (iso, LOCAL_FILENAME);
|
|
|
|
if (NULL == statbuf)
|
|
{
|
|
fprintf(stderr,
|
|
"Could not get ISO-9660 file information for file %s\n",
|
|
LOCAL_FILENAME);
|
|
iso9660_close(iso);
|
|
return 2;
|
|
}
|
|
|
|
if (!(outfd = fopen (LOCAL_FILENAME, "wb")))
|
|
{
|
|
perror ("fopen()");
|
|
free(statbuf);
|
|
iso9660_close(iso);
|
|
return 3;
|
|
}
|
|
|
|
/* Copy the blocks from the ISO-9660 filesystem to the local filesystem. */
|
|
for (i = 0; i < statbuf->size; i += ISO_BLOCKSIZE)
|
|
{
|
|
char buf[ISO_BLOCKSIZE];
|
|
|
|
memset (buf, 0, ISO_BLOCKSIZE);
|
|
|
|
if ( ISO_BLOCKSIZE != iso9660_iso_seek_read (iso, buf, statbuf->lsn
|
|
+ (i / ISO_BLOCKSIZE),
|
|
1) )
|
|
{
|
|
fprintf(stderr, "Error reading ISO 9660 file at lsn %lu\n",
|
|
(long unsigned int) statbuf->lsn + (i / ISO_BLOCKSIZE));
|
|
my_exit(4);
|
|
}
|
|
|
|
|
|
fwrite (buf, ISO_BLOCKSIZE, 1, outfd);
|
|
|
|
if (ferror (outfd))
|
|
{
|
|
perror ("fwrite()");
|
|
my_exit(5);
|
|
}
|
|
}
|
|
|
|
fflush (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 (outfd), statbuf->size))
|
|
perror ("ftruncate()");
|
|
|
|
my_exit(0);
|
|
}
|