Beispiel #1
0
static void PRS(int argc, char *argv[])
{
	int		b, c;
	int		size;
	char 		*tmp, *tmp2;
	int		blocksize = 0;
	int		inode_ratio = 0;
	int		inode_size = 0;
	double		reserved_ratio = 5.0;
	int		sector_size = 0;
	int		show_version_only = 0;
	ext2_ino_t	num_inodes = 0;
	errcode_t	retval;
	char *		oldpath = getenv("PATH");
	char *		extended_opts = 0;
	const char *	fs_type = 0;
	blk_t		dev_size;
#ifdef __linux__
	struct 		utsname ut;
#endif
	long		sysval;
	int		s_opt = -1, r_opt = -1;
	char		*fs_features = 0;
	int		use_bsize;

	/* Update our PATH to include /sbin  */
	if (oldpath) {
		char *newpath;
		
		newpath = malloc(sizeof (PATH_SET) + 1 + strlen (oldpath));
		strcpy (newpath, PATH_SET);
		strcat (newpath, ":");
		strcat (newpath, oldpath);
		putenv (newpath);
	} else
		putenv (PATH_SET);

	tmp = getenv("MKE2FS_SYNC");
	if (tmp)
		sync_kludge = atoi(tmp);

	/* Determine the system page size if possible */
#ifdef HAVE_SYSCONF
#if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
#define _SC_PAGESIZE _SC_PAGE_SIZE
#endif
#ifdef _SC_PAGESIZE
	sysval = sysconf(_SC_PAGESIZE);
	if (sysval > 0)
		sys_page_size = sysval;
#endif /* _SC_PAGESIZE */
#endif /* HAVE_SYSCONF */

	if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
		config_fn[0] = tmp;
	profile_set_syntax_err_cb(syntax_err_report);
	profile_init(config_fn, &profile);
	
	setbuf(stdout, NULL);
	setbuf(stderr, NULL);
	initialize_ext2_error_table();
	memset(&fs_param, 0, sizeof(struct ext2_super_block));
	fs_param.s_rev_level = 1;  /* Create revision 1 filesystems now */

#ifdef __linux__
	if (uname(&ut)) {
		perror("uname");
		exit(1);
	}
	linux_version_code = parse_version_number(ut.release);
	if (linux_version_code && linux_version_code < (2*65536 + 2*256))
		fs_param.s_rev_level = 0;
#endif

	if (argc && *argv) {
		program_name = get_progname(*argv);

		/* If called as mkfs.ext3, create a journal inode */
		if (!strcmp(program_name, "mkfs.ext3"))
			journal_size = -1;
	}

	while ((c = getopt (argc, argv,
		    "b:cf:g:i:jl:m:no:qr:s:tvE:FI:J:L:M:N:O:R:ST:V")) != EOF) {
		switch (c) {
		case 'b':
			blocksize = strtol(optarg, &tmp, 0);
			b = (blocksize > 0) ? blocksize : -blocksize;
			if (b < EXT2_MIN_BLOCK_SIZE ||
			    b > EXT2_MAX_BLOCK_SIZE || *tmp) {
				com_err(program_name, 0,
					_("invalid block size - %s"), optarg);
				exit(1);
			}
			if (blocksize > 4096)
				fprintf(stderr, _("Warning: blocksize %d not "
						  "usable on most systems.\n"),
					blocksize);
			if (blocksize > 0) 
				fs_param.s_log_block_size =
					int_log2(blocksize >>
						 EXT2_MIN_BLOCK_LOG_SIZE);
			break;
		case 'c':	/* Check for bad blocks */
		case 't':	/* deprecated */
			cflag++;
			break;
		case 'f':
			size = strtoul(optarg, &tmp, 0);
			if (size < EXT2_MIN_BLOCK_SIZE ||
			    size > EXT2_MAX_BLOCK_SIZE || *tmp) {
				com_err(program_name, 0,
					_("invalid fragment size - %s"),
					optarg);
				exit(1);
			}
			fs_param.s_log_frag_size =
				int_log2(size >> EXT2_MIN_BLOCK_LOG_SIZE);
			fprintf(stderr, _("Warning: fragments not supported.  "
			       "Ignoring -f option\n"));
			break;
		case 'g':
			fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
			if (*tmp) {
				com_err(program_name, 0,
					_("Illegal number for blocks per group"));
				exit(1);
			}
			if ((fs_param.s_blocks_per_group % 8) != 0) {
				com_err(program_name, 0,
				_("blocks per group must be multiple of 8"));
				exit(1);
			}
			break;
		case 'i':
			inode_ratio = strtoul(optarg, &tmp, 0);
			if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
			    inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 ||
			    *tmp) {
				com_err(program_name, 0,
					_("invalid inode ratio %s (min %d/max %d)"),
					optarg, EXT2_MIN_BLOCK_SIZE,
					EXT2_MAX_BLOCK_SIZE);
				exit(1);
			}
			break;
		case 'J':
			parse_journal_opts(optarg);
			break;
		case 'j':
			if (!journal_size)
				journal_size = -1;
			break;
		case 'l':
			bad_blocks_filename = malloc(strlen(optarg)+1);
			if (!bad_blocks_filename) {
				com_err(program_name, ENOMEM,
					_("in malloc for bad_blocks_filename"));
				exit(1);
			}
			strcpy(bad_blocks_filename, optarg);
			break;
		case 'm':
			reserved_ratio = strtod(optarg, &tmp);
			if (reserved_ratio > 50 || *tmp) {
				com_err(program_name, 0,
					_("invalid reserved blocks percent - %s"),
					optarg);
				exit(1);
			}
			break;
		case 'n':
			noaction++;
			break;
		case 'o':
			creator_os = optarg;
			break;
		case 'q':
			quiet = 1;
			break;
		case 'r':
			r_opt = strtoul(optarg, &tmp, 0);
			if (*tmp) {
				com_err(program_name, 0,
					_("bad revision level - %s"), optarg);
				exit(1);
			}
			fs_param.s_rev_level = r_opt;
			break;
		case 's':	/* deprecated */
			s_opt = atoi(optarg);
			break;
#ifdef EXT2_DYNAMIC_REV
		case 'I':
			inode_size = strtoul(optarg, &tmp, 0);
			if (*tmp) {
				com_err(program_name, 0,
					_("invalid inode size - %s"), optarg);
				exit(1);
			}
			break;
#endif
		case 'v':
			verbose = 1;
			break;
		case 'F':
			force = 1;
			break;
		case 'L':
			volume_label = optarg;
			break;
		case 'M':
			mount_dir = optarg;
			break;
		case 'N':
			num_inodes = strtoul(optarg, &tmp, 0);
			if (*tmp) {
				com_err(program_name, 0,
					_("bad num inodes - %s"), optarg);
					exit(1);
			}
			break;
		case 'O':
			fs_features = optarg;
			break;
		case 'E':
		case 'R':
			extended_opts = optarg;
			break;
		case 'S':
			super_only = 1;
			break;
		case 'T':
			fs_type = optarg;
			break;
		case 'V':
			/* Print version number and exit */
			show_version_only++;
			break;
		default:
			usage();
		}
	}
	if ((optind == argc) && !show_version_only)
		usage();
	device_name = argv[optind++];

	if (!quiet || show_version_only)
		fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION, 
			 E2FSPROGS_DATE);

	if (show_version_only) {
		fprintf(stderr, _("\tUsing %s\n"), 
			error_message(EXT2_ET_BASE));
		exit(0);
	}

	/*
	 * If there's no blocksize specified and there is a journal
	 * device, use it to figure out the blocksize
	 */
	if (blocksize <= 0 && journal_device) {
		ext2_filsys	jfs;
		io_manager	io_ptr;

#ifdef CONFIG_TESTIO_DEBUG
		io_ptr = test_io_manager;
		test_io_backing_manager = unix_io_manager;
#else
		io_ptr = unix_io_manager;
#endif
		retval = ext2fs_open(journal_device,
				     EXT2_FLAG_JOURNAL_DEV_OK, 0,
				     0, io_ptr, &jfs);
		if (retval) {
			com_err(program_name, retval,
				_("while trying to open journal device %s\n"),
				journal_device);
			exit(1);
		}
		if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
			com_err(program_name, 0,
				_("Journal dev blocksize (%d) smaller than "
				  "minimum blocksize %d\n"), jfs->blocksize,
				-blocksize);
			exit(1);
		}
		blocksize = jfs->blocksize;
		fs_param.s_log_block_size =
			int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
		ext2fs_close(jfs);
	}
static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
{
	int		flush = 0;
	int		c, fd;
#ifdef MTRACE
	extern void	*mallwatch;
#endif
	e2fsck_t	ctx;
	errcode_t	retval;
#ifdef HAVE_SIGNAL_H
	struct sigaction	sa;
#endif
	char		*extended_opts = 0;
	char		*cp;
	int 		res;		/* result of sscanf */
#ifdef CONFIG_JBD_DEBUG
	char 		*jbd_debug;
#endif

	retval = e2fsck_allocate_context(&ctx);
	if (retval)
		return retval;

	*ret_ctx = ctx;

	setvbuf(stdout, NULL, _IONBF, BUFSIZ);
	setvbuf(stderr, NULL, _IONBF, BUFSIZ);
	if (isatty(0) && isatty(1)) {
		ctx->interactive = 1;
	} else {
		ctx->start_meta[0] = '\001';
		ctx->stop_meta[0] = '\002';
	}
	memset(bar, '=', sizeof(bar)-1);
	memset(spaces, ' ', sizeof(spaces)-1);
	add_error_table(&et_ext2_error_table);
	add_error_table(&et_prof_error_table);
	blkid_get_cache(&ctx->blkid, NULL);

	if (argc && *argv)
		ctx->program_name = *argv;
	else
		ctx->program_name = "e2fsck";
	while ((c = getopt (argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDk")) != EOF)
		switch (c) {
		case 'C':
			ctx->progress = e2fsck_update_progress;
			res = sscanf(optarg, "%d", &ctx->progress_fd);
			if (res != 1)
				goto sscanf_err;

			if (ctx->progress_fd < 0) {
				ctx->progress = 0;
				ctx->progress_fd = ctx->progress_fd * -1;
			}
			if (!ctx->progress_fd)
				break;
			/* Validate the file descriptor to avoid disasters */
			fd = dup(ctx->progress_fd);
			if (fd < 0) {
				fprintf(stderr,
				_("Error validating file descriptor %d: %s\n"),
					ctx->progress_fd,
					error_message(errno));
				fatal_error(ctx,
			_("Invalid completion information file descriptor"));
			} else
				close(fd);
			break;
		case 'D':
			ctx->options |= E2F_OPT_COMPRESS_DIRS;
			break;
		case 'E':
			extended_opts = optarg;
			break;
		case 'p':
		case 'a':
			if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) {
			conflict_opt:
				fatal_error(ctx,
	_("Only one of the options -p/-a, -n or -y may be specified."));
			}
			ctx->options |= E2F_OPT_PREEN;
			break;
		case 'n':
			if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN))
				goto conflict_opt;
			ctx->options |= E2F_OPT_NO;
			break;
		case 'y':
			if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO))
				goto conflict_opt;
			ctx->options |= E2F_OPT_YES;
			break;
		case 't':
#ifdef RESOURCE_TRACK
			if (ctx->options & E2F_OPT_TIME)
				ctx->options |= E2F_OPT_TIME2;
			else
				ctx->options |= E2F_OPT_TIME;
#else
			fprintf(stderr, _("The -t option is not "
				"supported on this version of e2fsck.\n"));
#endif
			break;
		case 'c':
			if (cflag++)
				ctx->options |= E2F_OPT_WRITECHECK;
			ctx->options |= E2F_OPT_CHECKBLOCKS;
			break;
		case 'r':
			/* What we do by default, anyway! */
			break;
		case 'b':
			res = sscanf(optarg, "%u", &ctx->use_superblock);
			if (res != 1)
				goto sscanf_err;
			ctx->flags |= E2F_FLAG_SB_SPECIFIED;
			break;
		case 'B':
			ctx->blocksize = atoi(optarg);
			break;
		case 'I':
			res = sscanf(optarg, "%d", &ctx->inode_buffer_blocks);
			if (res != 1)
				goto sscanf_err;
			break;
		case 'j':
			ctx->journal_name = blkid_get_devname(ctx->blkid,
							      optarg, NULL);
			if (!ctx->journal_name) {
				com_err(ctx->program_name, 0,
					_("Unable to resolve '%s'"),
					optarg);
				fatal_error(ctx, 0);
			}
			break;
		case 'P':
			res = sscanf(optarg, "%d", &ctx->process_inode_size);
			if (res != 1)
				goto sscanf_err;
			break;
		case 'L':
			replace_bad_blocks++;
		case 'l':
			bad_blocks_file = string_copy(ctx, optarg, 0);
			break;
		case 'd':
			ctx->options |= E2F_OPT_DEBUG;
			break;
		case 'f':
			ctx->options |= E2F_OPT_FORCE;
			break;
		case 'F':
			flush = 1;
			break;
		case 'v':
			verbose = 1;
			break;
		case 'V':
			show_version_only = 1;
			break;
#ifdef MTRACE
		case 'M':
			mallwatch = (void *) strtol(optarg, NULL, 0);
			break;
#endif
		case 'N':
			ctx->device_name = string_copy(ctx, optarg, 0);
			break;
		case 'k':
			keep_bad_blocks++;
			break;
		default:
			usage(ctx);
		}
	if (show_version_only)
		return 0;
	if (optind != argc - 1)
		usage(ctx);
	if ((ctx->options & E2F_OPT_NO) &&
	    (ctx->options & E2F_OPT_COMPRESS_DIRS)) {
		com_err(ctx->program_name, 0,
			_("The -n and -D options are incompatible."));
		fatal_error(ctx, 0);
	}
	if ((ctx->options & E2F_OPT_NO) && cflag) {
		com_err(ctx->program_name, 0,
			_("The -n and -c options are incompatible."));
		fatal_error(ctx, 0);
	}
	if ((ctx->options & E2F_OPT_NO) && bad_blocks_file) {
		com_err(ctx->program_name, 0,
			_("The -n and -l/-L options are incompatible."));
		fatal_error(ctx, 0);
	}
	if (ctx->options & E2F_OPT_NO)
		ctx->options |= E2F_OPT_READONLY;

	ctx->io_options = strchr(argv[optind], '?');
	if (ctx->io_options)
		*ctx->io_options++ = 0;
	ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0);
	if (!ctx->filesystem_name) {
		com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
			argv[optind]);
		fatal_error(ctx, 0);
	}
	if (extended_opts)
		parse_extended_opts(ctx, extended_opts);

	if ((cp = getenv("E2FSCK_CONFIG")) != NULL)
		config_fn[0] = cp;
	profile_set_syntax_err_cb(syntax_err_report);
	profile_init(config_fn, &ctx->profile);

	if (flush) {
		fd = open(ctx->filesystem_name, O_RDONLY, 0);
		if (fd < 0) {
			com_err("open", errno,
				_("while opening %s for flushing"),
				ctx->filesystem_name);
			fatal_error(ctx, 0);
		}
		if ((retval = ext2fs_sync_device(fd, 1))) {
			com_err("ext2fs_sync_device", retval,
				_("while trying to flush %s"),
				ctx->filesystem_name);
			fatal_error(ctx, 0);
		}
		close(fd);
	}
	if (cflag && bad_blocks_file) {
		fprintf(stderr, _("The -c and the -l/-L options may "
				  "not be both used at the same time.\n"));
		exit(FSCK_USAGE);
	}
#ifdef HAVE_SIGNAL_H
	/*
	 * Set up signal action
	 */
	memset(&sa, 0, sizeof(struct sigaction));
	sa.sa_handler = signal_cancel;
	sigaction(SIGINT, &sa, 0);
	sigaction(SIGTERM, &sa, 0);
#ifdef SA_RESTART
	sa.sa_flags = SA_RESTART;
#endif
	e2fsck_global_ctx = ctx;
	sa.sa_handler = signal_progress_on;
	sigaction(SIGUSR1, &sa, 0);
	sa.sa_handler = signal_progress_off;
	sigaction(SIGUSR2, &sa, 0);
#endif

	/* Update our PATH to include /sbin if we need to run badblocks  */
	if (cflag) {
		char *oldpath = getenv("PATH");
		char *newpath;
		int len = sizeof(PATH_SET) + 1;

		if (oldpath)
			len += strlen(oldpath);

		newpath = malloc(len);
		if (!newpath)
			fatal_error(ctx, "Couldn't malloc() newpath");
		strcpy(newpath, PATH_SET);

		if (oldpath) {
			strcat(newpath, ":");
			strcat(newpath, oldpath);
		}
		putenv(newpath);
	}
#ifdef CONFIG_JBD_DEBUG
	jbd_debug = getenv("E2FSCK_JBD_DEBUG");
	if (jbd_debug) {
		res = sscanf(jbd_debug, "%d", &journal_enable_debug);
		if (res != 1) {
			fprintf(stderr,
			        _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"),
			        jbd_debug);
			exit (1);
		}
	}
#endif
	return 0;

sscanf_err:
	fprintf(stderr, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"),
	        c, optarg);
	exit (1);
}