mkisofs.c

创建一个符合iso-9660标准的iso文件系统

#ifdef HAVE_SBRK
	unsigned long	mem_start;

#endif
	struct stat	statbuf;
	char		*merge_image = NULL;
	struct iso_directory_record *mrootp = NULL;
	struct output_fragment *opnt;
	int		longind;
	char		shortopts[OPTION_COUNT * 3 + 2];
	struct option	longopts[OPTION_COUNT + 1];
	int		c;
	int		n;
	char		*log_file = 0;
	char		*node;
	char		*pathnames = 0;
	FILE		*pfp = NULL;
	char		pname[1024],
			*arg;
	char		nodename[1024];
	int		use_graft_ptrs = 0;
	int		no_path_names = 1;
	int		warn_violate = 0;
	int		have_cmd_line_pathspec = 0;

#ifdef APPLE_HYB
	char		*afpfile = "";	/* mapping file for TYPE/CREATOR */
	int		hfs_ct = 0;
	char		*root_info = 0;
#endif	/* APPLE_HYB */


#ifdef __EMX__
	/* This gives wildcard expansion with Non-Posix shells with EMX */
	_wildcard(&argc, &argv);
#endif
	save_args(argc, argv);

	if (argc < 2) {
#ifdef	USE_LIBSCHILY
		errmsgno(EX_BAD, "Missing pathspec.\n");
#endif
		usage(1);
	}
	/* Get the defaults from the .mkisofsrc file */
	read_rcfile(argv[0]);

	outfile = NULL;

	/*
	 * Copy long option initialization from GNU-ld.
	 */
	/*
	 * Starting the short option string with '-' is for programs that
	 * expect options and other ARGV-elements in any order and that care
	 * about the ordering of the two.  We describe each non-option
	 * ARGV-element as if it were the argument of an option with
	 * character code 1.
	 */
	{
		int		i,
				is,
				il;

		shortopts[0] = '-';
		is = 1;
		il = 0;
		for (i = 0; i < OPTION_COUNT; i++) {
			if (ld_options[i].shortopt != '\0') {
				shortopts[is] = ld_options[i].shortopt;
				++is;
				if (ld_options[i].opt.has_arg ==
					required_argument
					|| ld_options[i].opt.has_arg ==
							optional_argument) {
					shortopts[is] = ':';
					++is;
					if (ld_options[i].opt.has_arg ==
							optional_argument) {
						shortopts[is] = ':';
						++is;
					}
				}
			}
			if (ld_options[i].opt.name != NULL) {
				longopts[il] = ld_options[i].opt;
				++il;
			}
		}
		shortopts[is] = '\0';
		longopts[il].name = NULL;
	}

	while ((c = getopt_long_only(argc, argv, shortopts,
						longopts, &longind)) != EOF)
		switch (c) {
		case 1:
			/* A filename that we take as input. */
			optind--;
			have_cmd_line_pathspec = 1;
			goto parse_input_files;

		case OPTION_USE_GRAFT:
			use_graft_ptrs = 1;
			break;
		case 'C':
			/*
			 * This is a temporary hack until cdrecord gets the
			 * proper hooks in it.
			 */
			cdrecord_data = optarg;
			break;
		case OPTION_GUI:
			gui++;
			break;
		case 'i':
#ifdef	USE_LIBSCHILY
			comerrno(EX_BAD, "-i option no longer supported.\n");
#else
			fprintf(stderr, "-i option no longer supported.\n");
			exit(1);
#endif
			break;
		case OPTION_ISO_LEVEL:
			iso9660_level = atoi(optarg);

			switch (iso9660_level) {

			case 1:
				/*
				 * Only on file section
				 * 8.3 d or d1 characters for files
				 * 8   d or d1 characters for directories
				 */
				break;
			case 2:
				/*
				 * Only on file section
				 */
				break;
			case 3:
				/*
				 * No restrictions
				 */
				break;

			default:
				comerrno(EX_BAD, "Illegal iso9660 Level %d, use 1..3.\n",
							ucs_level);
			}
			break;
		case 'J':
			use_Joliet++;
			break;
		case OPTION_JCHARSET:
			jcharset = optarg;
			use_Joliet++;
			break;
		case OPTION_NOBAK:
			all_files = 0;
			break;
		case 'b':
			use_eltorito++;
			boot_image = optarg;	/* pathname of the boot image
						   on disk */
			if (boot_image == NULL) {
#ifdef	USE_LIBSCHILY
				comerrno(EX_BAD,
				"Required Eltorito boot image pathname missing\n");
#else
				fprintf(stderr,
				"Required Eltorito boot image pathname missing\n");
				exit(1);
#endif
			}
			get_boot_entry();
			current_boot_entry->boot_image = boot_image;
			break;
		case OPTION_ALT_BOOT:
			/*
			 * Start new boot entry parameter list.
			 */
			new_boot_entry();
			break;
		case 'B':
			use_sparcboot++;
			/* list of pathnames of boot images */
			scan_sparc_boot(optarg);
			break;
		case 'G':
			use_genboot++;
			/* pathname of the boot image on disk */
			genboot_image = optarg;
			if (genboot_image == NULL) {
#ifdef	USE_LIBSCHILY
				comerrno(EX_BAD,
				"Required generic boot image pathname missing\n");
#else
				fprintf(stderr,
				"Required generic boot image pathname missing\n");
				exit(1);
#endif
			}
			break;
		case OPTION_SPARCLABEL:
			/* Sun disk label string */
			sparc_boot_label(optarg);
			break;
		case 'c':
			use_eltorito++;
			/* pathname of the boot image on cd */
			boot_catalog = optarg;
			if (boot_catalog == NULL) {
#ifdef	USE_LIBSCHILY
				comerrno(EX_BAD,
				"Required boot catalog pathname missing\n");
#else
				fprintf(stderr,
				"Required boot catalog pathname missing\n");
				exit(1);
#endif
			}
			break;
		case OPTION_ABSTRACT:
			abstract = optarg;
			if (strlen(abstract) > 37) {
#ifdef	USE_LIBSCHILY
				comerrno(EX_BAD,
				"Abstract filename string too long\n");
#else
				fprintf(stderr,
				"Abstract filename string too long\n");
				exit(1);
#endif
			};
			break;
		case 'A':
			appid = optarg;
			if (strlen(appid) > 128) {
#ifdef	USE_LIBSCHILY
				comerrno(EX_BAD,
				"Application-id string too long\n");
#else
				fprintf(stderr,
				"Application-id string too long\n");
				exit(1);
#endif
			};
			break;
		case OPTION_BIBLIO:
			biblio = optarg;
			if (strlen(biblio) > 37) {
#ifdef	USE_LIBSCHILY
				comerrno(EX_BAD,
				"Bibliographic filename string too long\n");
#else
				fprintf(stderr,
				"Bibliographic filename string too long\n");
				exit(1);
#endif
			};
			break;
		case OPTION_CHECK_OLDNAMES:
			check_oldnames++;
			break;
		case OPTION_COPYRIGHT:
			copyright = optarg;
			if (strlen(copyright) > 37) {
#ifdef	USE_LIBSCHILY
				comerrno(EX_BAD,
				"Copyright filename string too long\n");
#else
				fprintf(stderr,
				"Copyright filename string too long\n");
				exit(1);
#endif
			};
			break;
		case 'd':
			omit_period++;
			warn_violate++;
			break;
		case 'D':
			RR_relocation_depth = 32767;
			break;
		case 'f':
			follow_links++;
			break;
		case 'l':
			full_iso9660_filenames++;
			break;
		case OPTION_MAX_FILENAMES:
			iso9660_namelen = MAX_ISONAME;	/* allow 37 chars */
			full_iso9660_filenames++;
			omit_version_number++;
			warn_violate++;
			break;
		case 'L':
			allow_leading_dots++;
			warn_violate++;
			break;
		case OPTION_LOG_FILE:
			log_file = optarg;
			break;
		case 'M':
			merge_image = optarg;
			break;
		case 'N':
			omit_version_number++;
			warn_violate++;
			break;
		case OPTION_NO_RR:
			no_rr++;
			break;
		case 'o':
			outfile = optarg;
			break;
		case OPTION_PAD:
			dopad++;
			break;
		case OPTION_P_LIST:
			pathnames = optarg;
			break;
		case 'p':
			preparer = optarg;
			if (strlen(preparer) > 128) {
#ifdef	USE_LIBSCHILY
				comerrno(EX_BAD, "Preparer string too long\n");
#else
				fprintf(stderr, "Preparer string too long\n");
				exit(1);
#endif
			};
			break;
		case OPTION_PRINT_SIZE:
			print_size++;
			break;
		case 'P':
			publisher = optarg;
			if (strlen(publisher) > 128) {
#ifdef	USE_LIBSCHILY
				comerrno(EX_BAD,
						"Publisher string too long\n");
#else
				fprintf(stderr, "Publisher string too long\n");
				exit(1);
#endif
			};
			break;
		case OPTION_QUIET:
			verbose = 0;
			break;
		case 'R':
			use_RockRidge++;
			break;
		case 'r':
			rationalize++;
			use_RockRidge++;
			break;

#ifdef SORTING
		case OPTION_SORT:
			do_sort++;
			add_sort_list(optarg);
			break;
#endif /* SORTING */

		case OPTION_SPLIT_OUTPUT:
			split_output++;
			break;
		case OPTION_SYSID:
			system_id = optarg;
			if (strlen(system_id) > 32) {
#ifdef	USE_LIBSCHILY
				comerrno(EX_BAD,
						"System ID string too long\n");
#else
				fprintf(stderr, "System ID string too long\n");
				exit(1);
#endif
			};
			break;
		case OPTION_TRANS_TBL:
			trans_tbl = optarg;
		/* fall through */
		case 'T':
			generate_tables++;
			break;
		case OPTION_UCS_LEVEL:
			ucs_level = atoi(optarg);
			if (ucs_level < 1 || ucs_level > 3)
				comerrno(EX_BAD, "Illegal UCS Level %d, use 1..3.\n",
							ucs_level);
			break;
		case OPTION_USE_FILEVERSION:
			use_fileversion++;
			break;
		case 'U':
			/*
			 * Minimal (only truncation of 31+ characters)
			 * translation of filenames.
			 *
			 * Forces -l, -d, -L, -N, -relaxed-filenames,
			 * -allow-lowercase, -allow-multidot
			 *
			 * This is for HP-UX, which does not recognize ANY
			 * extentions (Rock Ridge, Joliet), causing pain when
			 * loading software. pfs_mount can be used to read the
			 * extensions, but the untranslated filenames can be
			 * read by the "native" cdfs mounter. Completely
			 * violates iso9660.
			 */
			full_iso9660_filenames++;	/* 31 chars	*/
			omit_period++;			/* trailing dot */
			allow_leading_dots++;
			omit_version_number++;
			relaxed_filenames++;		/* all chars	*/
			allow_lowercase++;		/* even lowcase	*/
			allow_multidot++;		/* > 1 dots	*/
			warn_violate++;
			break;

		case OPTION_RELAXED_FILENAMES:
			relaxed_filenames++;
			warn_violate++;
			break;
		case OPTION_ALLOW_LOWERCASE:
			allow_lowercase++;
			warn_violate++;
			break;
		case OPTION_ALLOW_MULTIDOT:
			allow_multidot++;
			warn_violate++;
			break;
		case OPTION_ISO_TRANSLATE:
			iso_translate = 0;
			warn_violate++;
			break;
		case 'V':
			volume_id = optarg;
			if (strlen(volume_id) > 32) {
#ifdef	USE_LIBSCHILY
				comerrno(EX_BAD,
					"Volume ID string too long\n");
#else
				fprintf(stderr,
					"Volume ID string too long\n");
				exit(1);
#endif
			};
			break;
		case OPTION_VOLSET:
			volset_id = optarg;
			if (strlen(volset_id) > 128) {
#ifdef	USE_LIBSCHILY
				comerrno(EX_BAD,
				"Volume set ID string too long\n");
#else
				fprintf(stderr,
				"Volume set ID string too long\n");
				exit(1);
#endif
			};
			break;
		case OPTION_VOLSET_SIZE:
			volume_set_size = atoi(optarg);
			break;
		case OPTION_VOLSET_SEQ_NUM:
			volume_sequence_number = atoi(optarg);
			if (volume_sequence_number > volume_set_size) {
#ifdef	USE_LIBSCHILY
				comerrno(EX_BAD,
				"Volume set sequence number too big\n");
#else
				fprintf(stderr,
				"Volume set sequence number too big\n");
				exit(1);
#endif
			}
			break;
		case 'v':
			verbose++;
			break;
		case 'z':
#ifdef VMS
#ifdef	USE_LIBSCHILY
			comerrno(EX_BAD,
			"Transparent compression not supported with VMS\n");
#else
			fprintf(stderr,
			"Transparent compression not supported with VMS\n");
			exit(1);
#endif