diff --git a/example/iso3cpp.cpp b/example/iso3cpp.cpp new file mode 100644 index 00000000..0b697c48 --- /dev/null +++ b/example/iso3cpp.cpp @@ -0,0 +1,135 @@ +/* + $Id: iso3cpp.cpp,v 1.1 2004/11/22 03:36:50 rocky Exp $ + + Copyright (C) 2004 Rocky Bernstein + + 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. + */ + +/* 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 "portable.h" + +#include +#include +#include + +#include + +#ifdef HAVE_ERRNO_H +#include +#endif +#ifdef HAVE_STDLIB_H +#include +#endif +#ifdef HAVE_STRING_H +#include +#endif +#ifdef HAVE_UNISTD_H +#include +#endif +#ifdef HAVE_SYS_TYPES_H +#include +#endif + +#define my_exit(rc) \ + fclose (p_outfd); \ + free(p_statbuf); \ + iso9660_close(p_iso); \ + return rc; \ + +int +main(int argc, const char *argv[]) +{ + iso9660_stat_t *p_statbuf; + FILE *p_outfd; + int i; + + iso9660_t *p_iso = iso9660_open (ISO9660_IMAGE); + + if (NULL == p_iso) { + fprintf(stderr, "Sorry, couldn't open ISO 9660 image %s\n", ISO9660_IMAGE); + return 1; + } + + p_statbuf = iso9660_ifs_stat_translate (p_iso, LOCAL_FILENAME); + + if (NULL == p_statbuf) + { + fprintf(stderr, + "Could not get ISO-9660 file information for file %s\n", + LOCAL_FILENAME); + iso9660_close(p_iso); + return 2; + } + + if (!(p_outfd = fopen (LOCAL_FILENAME, "wb"))) + { + perror ("fopen()"); + free(p_statbuf); + iso9660_close(p_iso); + return 3; + } + + /* Copy the blocks from the ISO-9660 filesystem to the local filesystem. */ + for (i = 0; i < p_statbuf->size; i += ISO_BLOCKSIZE) + { + char buf[ISO_BLOCKSIZE]; + + memset (buf, 0, ISO_BLOCKSIZE); + + if ( ISO_BLOCKSIZE != iso9660_iso_seek_read (p_iso, buf, p_statbuf->lsn + + (i / ISO_BLOCKSIZE), + 1) ) + { + fprintf(stderr, "Error reading ISO 9660 file at lsn %lu\n", + (long unsigned int) p_statbuf->lsn + (i / ISO_BLOCKSIZE)); + 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_statbuf->size)) + perror ("ftruncate()"); + + printf("Extraction of file 'copying' from %s successful.\n", ISO9660_IMAGE); + + my_exit(0); +}