fsck.c revision d9c56d3ca0bee11e3446ff7e12e3124d28e298a7 
1/*
2 * pfsck --- A generic, parallelizing front-end for the fsck program.
3 * It will automatically try to run fsck programs in parallel if the
4 * devices are on separate spindles.  It is based on the same ideas as
5 * the generic front end for fsck by David Engel and Fred van Kempen,
6 * but it has been completely rewritten from scratch to support
7 * parallel execution.
8 *
9 * Written by Theodore Ts'o, <tytso@mit.edu>
10 *
11 * Usage:	fsck [-ACVRNTM] [-s] [-t fstype] [fs-options] device
12 *
13 * Miquel van Smoorenburg (miquels@drinkel.ow.org) 20-Oct-1994:
14 *   o Changed -t fstype to behave like with mount when -A (all file
15 *     systems) or -M (like mount) is specified.
16 *   o fsck looks if it can find the fsck.type program to decide
17 *     if it should ignore the fs type. This way more fsck programs
18 *     can be added without changing this front-end.
19 *   o -R flag skip root file system.
20 *
21 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999 Theodore Ts'o.
22 *
23 * %Begin-Header%
24 * This file may be redistributed under the terms of the GNU Public
25 * License.
26 * %End-Header%
27 */
28
29#include <sys/types.h>
30#include <sys/wait.h>
31#include <sys/signal.h>
32#include <sys/stat.h>
33#include <limits.h>
34#include <stdio.h>
35#include <ctype.h>
36#include <string.h>
37#include <time.h>
38#if HAVE_STDLIB_H
39#include <stdlib.h>
40#endif
41#if HAVE_ERRNO_H
42#include <errno.h>
43#endif
44#if HAVE_PATHS_H
45#include <paths.h>
46#endif
47#if HAVE_UNISTD_H
48#include <unistd.h>
49#endif
50#if HAVE_ERRNO_H
51#include <errno.h>
52#endif
53#include <malloc.h>
54
55#include "../version.h"
56#include "nls-enable.h"
57#include "fsck.h"
58#include "get_device_by_label.h"
59
60#ifndef _PATH_MNTTAB
61#define	_PATH_MNTTAB	"/etc/fstab"
62#endif
63
64static const char *ignored_types[] = {
65	"ignore",
66	"iso9660",
67	"nfs",
68	"proc",
69	"sw",
70	"swap",
71	NULL
72};
73
74static const char *really_wanted[] = {
75	"minix",
76	"ext2",
77	"xiafs",
78	NULL
79};
80
81#ifdef DEV_DSK_DEVICES
82static const char *base_devices[] = {
83	"/dev/dsk/hda",
84	"/dev/dsk/hdb",
85	"/dev/dsk/hdc",
86	"/dev/dsk/hdd",
87	"/dev/dsk/hd1a",
88	"/dev/dsk/hd1b",
89	"/dev/dsk/hd1c",
90	"/dev/dsk/hd1d",
91	"/dev/dsk/sda",
92	"/dev/dsk/sdb",
93	"/dev/dsk/sdc",
94	"/dev/dsk/sdd",
95	"/dev/dsk/sde",
96	"/dev/dsk/sdf",
97	"/dev/dsk/sdg",
98	NULL
99};
100#else
101static const char *base_devices[] = {
102	"/dev/hda",
103	"/dev/hdb",
104	"/dev/hdc",
105	"/dev/hdd",
106	"/dev/hd1a",
107	"/dev/hd1b",
108	"/dev/hd1c",
109	"/dev/hd1d",
110	"/dev/sda",
111	"/dev/sdb",
112	"/dev/sdc",
113	"/dev/sdd",
114	"/dev/sde",
115	"/dev/sdf",
116	"/dev/sdg",
117	NULL
118};
119#endif
120
121/*
122 * Global variables for options
123 */
124char *devices[MAX_DEVICES];
125char *args[MAX_ARGS];
126int num_devices, num_args;
127
128int verbose = 0;
129int doall = 0;
130int noexecute = 0;
131int serialize = 0;
132int skip_root = 0;
133int like_mount = 0;
134int notitle = 0;
135int parallel_root = 0;
136int progress = 0;
137int force_all_parallel = 0;
138char *progname;
139char *fstype = NULL;
140struct fs_info *filesys_info;
141struct fsck_instance *instance_list;
142const char *fsck_prefix_path = "/sbin:/sbin/fs.d:/sbin/fs:/etc/fs:/etc";
143char *fsck_path = 0;
144static int ignore(struct fs_info *);
145
146static char *string_copy(const char *s)
147{
148	char	*ret;
149
150	ret = malloc(strlen(s)+1);
151	if (ret)
152		strcpy(ret, s);
153	return ret;
154}
155
156static char *skip_over_blank(char *cp)
157{
158	while (*cp && isspace(*cp))
159		cp++;
160	return cp;
161}
162
163static char *skip_over_word(char *cp)
164{
165	while (*cp && !isspace(*cp))
166		cp++;
167	return cp;
168}
169
170static void strip_line(char *line)
171{
172	char	*p;
173
174	while (*line) {
175		p = line + strlen(line) - 1;
176		if ((*p == '\n') || (*p == '\r'))
177			*p = 0;
178		else
179			break;
180	}
181}
182
183static char *parse_word(char **buf)
184{
185	char *word, *next;
186
187	word = *buf;
188	if (*word == 0)
189		return 0;
190
191	word = skip_over_blank(word);
192	next = skip_over_word(word);
193	if (*next)
194		*next++ = 0;
195	*buf = next;
196	return word;
197}
198
199static void free_instance(struct fsck_instance *i)
200{
201	if (i->prog)
202		free(i->prog);
203	if (i->device)
204		free(i->device);
205	free(i);
206	return;
207}
208
209static int parse_fstab_line(char *line, struct fs_info **ret_fs)
210{
211	char	*device, *mntpnt, *type, *opts, *freq, *passno, *cp;
212	struct fs_info *fs;
213
214	*ret_fs = 0;
215	strip_line(line);
216	if ((cp = strchr(line, '#')))
217		*cp = 0;	/* Ignore everything after the comment char */
218	cp = line;
219
220	device = parse_word(&cp);
221	mntpnt = parse_word(&cp);
222	type = parse_word(&cp);
223	opts = parse_word(&cp);
224	freq = parse_word(&cp);
225	passno = parse_word(&cp);
226
227	if (!device)
228		return 0;	/* Allow blank lines */
229
230	if (!mntpnt || !type)
231		return -1;
232
233	if (!(fs = malloc(sizeof(struct fs_info))))
234		return -1;
235
236	fs->device = string_copy(device);
237	fs->mountpt = string_copy(mntpnt);
238	fs->type = string_copy(type);
239	fs->opts = string_copy(opts ? opts : "");
240	fs->freq = freq ? atoi(freq) : -1;
241	fs->passno = passno ? atoi(passno) : -1;
242	fs->flags = 0;
243	fs->next = NULL;
244
245	*ret_fs = fs;
246
247	return 0;
248}
249
250/*
251 * Interpret the device name if necessary
252 */
253static char *interpret_device(char *spec)
254{
255	char *dev = NULL;
256
257	if (!strncmp(spec, "UUID=", 5))
258		dev = get_spec_by_uuid(spec+5);
259	else if (!strncmp(spec, "LABEL=", 6))
260		dev = get_spec_by_volume_label(spec+6);
261	else
262		return spec;
263	if (dev) {
264		free(spec);
265		return (dev);
266	}
267	/*
268	 * Check to see if this was because /proc/partitions isn't
269	 * found.
270	 */
271	if (access("/proc/partitions", R_OK) < 0) {
272		fprintf(stderr, "Couldn't open /proc/partitions: %s\n",
273			strerror(errno));
274		fprintf(stderr, "Is /proc mounted?\n");
275		exit(1);
276	}
277	return spec;
278}
279
280/*
281 * Load the filesystem database from /etc/fstab
282 */
283static void load_fs_info(const char *filename)
284{
285	FILE	*f;
286	char	buf[1024];
287	int	lineno = 0;
288	int	old_fstab = 1;
289	struct fs_info *fs, *fs_last = NULL;
290
291	filesys_info = NULL;
292	if ((f = fopen(filename, "r")) == NULL) {
293		fprintf(stderr, _("WARNING: couldn't open %s: %s\n"),
294			filename, strerror(errno));
295		return;
296	}
297	while (!feof(f)) {
298		lineno++;
299		if (!fgets(buf, sizeof(buf), f))
300			break;
301		buf[sizeof(buf)-1] = 0;
302		if (parse_fstab_line(buf, &fs) < 0) {
303			fprintf(stderr, _("WARNING: bad format "
304				"on line %d of %s\n"), lineno, filename);
305			continue;
306		}
307		if (!fs)
308			continue;
309		fs->device = interpret_device(fs->device);
310		if (!filesys_info)
311			filesys_info = fs;
312		else
313			fs_last->next = fs;
314		fs_last = fs;
315		if (fs->passno < 0)
316			fs->passno = 0;
317		else
318			old_fstab = 0;
319	}
320
321	fclose(f);
322
323	if (old_fstab) {
324		fprintf(stderr, _("\007\007\007"
325		"WARNING: Your /etc/fstab does not contain the fsck passno\n"
326		"	field.  I will kludge around things for you, but you\n"
327		"	should fix your /etc/fstab file as soon as you can.\n\n"));
328
329		for (fs = filesys_info; fs; fs = fs->next) {
330			fs->passno = 1;
331		}
332	}
333}
334
335/* Lookup filesys in /etc/fstab and return the corresponding entry. */
336static struct fs_info *lookup(char *filesys)
337{
338	struct fs_info *fs;
339
340	/* No filesys name given. */
341	if (filesys == NULL)
342		return NULL;
343
344	for (fs = filesys_info; fs; fs = fs->next) {
345		if (!strcmp(filesys, fs->device) ||
346		    !strcmp(filesys, fs->mountpt))
347			break;
348	}
349
350	return fs;
351}
352
353/* Find fsck program for a given fs type. */
354static char *find_fsck(char *type)
355{
356  char *s;
357  const char *tpl;
358  static char prog[256];
359  char *p = string_copy(fsck_path);
360  struct stat st;
361
362  /* Are we looking for a program or just a type? */
363  tpl = (strncmp(type, "fsck.", 5) ? "%s/fsck.%s" : "%s/%s");
364
365  for(s = strtok(p, ":"); s; s = strtok(NULL, ":")) {
366	sprintf(prog, tpl, s, type);
367	if (stat(prog, &st) == 0) break;
368  }
369  free(p);
370  return(s ? prog : NULL);
371}
372
373static int progress_active(NOARGS)
374{
375	struct fsck_instance *inst;
376
377	for (inst = instance_list; inst; inst = inst->next) {
378		if (inst->flags & FLAG_DONE)
379			continue;
380		if (inst->flags & FLAG_PROGRESS)
381			return 1;
382	}
383	return 0;
384}
385
386/*
387 * Execute a particular fsck program, and link it into the list of
388 * child processes we are waiting for.
389 */
390static int execute(const char *type, char *device, char *mntpt,
391		   int interactive)
392{
393	char *s, *argv[80], prog[80];
394	int  argc, i;
395	struct fsck_instance *inst, *p;
396	pid_t	pid;
397
398	inst = malloc(sizeof(struct fsck_instance));
399	if (!inst)
400		return ENOMEM;
401	memset(inst, 0, sizeof(struct fsck_instance));
402
403	sprintf(prog, "fsck.%s", type);
404	argv[0] = string_copy(prog);
405	argc = 1;
406
407	for (i=0; i <num_args; i++)
408		argv[argc++] = string_copy(args[i]);
409
410	if (progress & !progress_active()) {
411		if (strcmp(type, "ext2") == 0) {
412			argv[argc++] = string_copy("-C0");
413			inst->flags |= FLAG_PROGRESS;
414		}
415	}
416
417	argv[argc++] = string_copy(device);
418	argv[argc] = 0;
419
420	s = find_fsck(prog);
421	if (s == NULL) {
422		fprintf(stderr, _("fsck: %s: not found\n"), prog);
423		return ENOENT;
424	}
425
426	if (verbose || noexecute) {
427		printf("[%s -- %s] ", s, mntpt ? mntpt : device);
428		for (i=0; i < argc; i++)
429			printf("%s ", argv[i]);
430		printf("\n");
431	}
432
433	/* Fork and execute the correct program. */
434	if (noexecute)
435		pid = -1;
436	else if ((pid = fork()) < 0) {
437		perror("fork");
438		return errno;
439	} else if (pid == 0) {
440		if (!interactive)
441			close(0);
442		(void) execv(s, argv);
443		perror(argv[0]);
444		exit(EXIT_ERROR);
445	}
446
447	for (i=0; i < argc; i++)
448		free(argv[i]);
449
450	inst->pid = pid;
451	inst->prog = string_copy(prog);
452	inst->type = string_copy(type);
453	inst->device = string_copy(device);
454	inst->start_time = time(0);
455	inst->next = NULL;
456
457	/*
458	 * Find the end of the list, so we add the instance on at the end.
459	 */
460	for (p = instance_list; p && p->next; p = p->next);
461
462	if (p)
463		p->next = inst;
464	else
465		instance_list = inst;
466
467	return 0;
468}
469
470/*
471 * Wait for one child process to exit; when it does, unlink it from
472 * the list of executing child processes, and return it.
473 */
474static struct fsck_instance *wait_one(NOARGS)
475{
476	int	status;
477	int	sig;
478	struct fsck_instance *inst, *inst2, *prev;
479	pid_t	pid;
480
481	if (!instance_list)
482		return NULL;
483
484	if (noexecute) {
485		inst = instance_list;
486		instance_list = inst->next;
487		inst->exit_status = 0;
488		return(inst);
489	}
490
491	/*
492	 * gcc -Wall fails saving throw against stupidity
493	 * (inst and prev are thought to be uninitialized variables)
494	 */
495	inst = prev = NULL;
496
497	do {
498		pid = wait(&status);
499		if (pid < 0) {
500			if ((errno == EINTR) || (errno == EAGAIN))
501				continue;
502			if (errno == ECHILD) {
503				fprintf(stderr,
504					_("%s: wait: No more child process?!?\n"),
505					progname);
506				return NULL;
507			}
508			perror("wait");
509			continue;
510		}
511		for (prev = 0, inst = instance_list;
512		     inst;
513		     prev = inst, inst = inst->next) {
514			if (inst->pid == pid)
515				break;
516		}
517	} while (!inst);
518
519	if (WIFEXITED(status))
520		status = WEXITSTATUS(status);
521	else if (WIFSIGNALED(status)) {
522		sig = WTERMSIG(status);
523		if (sig == SIGINT) {
524			status = EXIT_UNCORRECTED;
525		} else {
526			printf(_("Warning... %s for device %s exited "
527			       "with signal %d.\n"),
528			       inst->prog, inst->device, sig);
529			status = EXIT_ERROR;
530		}
531	} else {
532		printf(_("%s %s: status is %x, should never happen.\n"),
533		       inst->prog, inst->device, status);
534		status = EXIT_ERROR;
535	}
536	inst->exit_status = status;
537	if (prev)
538		prev->next = inst->next;
539	else
540		instance_list = inst->next;
541	if (progress && (inst->flags & FLAG_PROGRESS) &&
542	    !progress_active()) {
543		for (inst2 = instance_list; inst2; inst2 = inst2->next) {
544			if (inst2->flags & FLAG_DONE)
545				continue;
546			if (strcmp(inst2->type, "ext2"))
547				continue;
548			/*
549			 * If we've just started the fsck, wait a tiny
550			 * bit before sending the kill, to give it
551			 * time to set up the signal handler
552			 */
553			if (inst2->start_time < time(0)+2) {
554				if (fork() == 0) {
555					sleep(1);
556					kill(inst2->pid, SIGUSR1);
557					exit(0);
558				}
559			} else
560				kill(inst2->pid, SIGUSR1);
561			break;
562		}
563	}
564	return inst;
565}
566
567/*
568 * Wait until all executing child processes have exited; return the
569 * logical OR of all of their exit code values.
570 */
571static int wait_all(NOARGS)
572{
573	struct fsck_instance *inst;
574	int	global_status = 0;
575
576	while (instance_list) {
577		inst = wait_one();
578		if (!inst)
579			break;
580		global_status |= inst->exit_status;
581		free_instance(inst);
582	}
583	return global_status;
584}
585
586/*
587 * Run the fsck program on a particular device
588 *
589 * If the type is specified using -t, and it isn't prefixed with "no"
590 * (as in "noext2") and only one filesystem type is specified, then
591 * use that type regardless of what is specified in /etc/fstab.
592 *
593 * If the type isn't specified by the user, then use either the type
594 * specified in /etc/fstab, or DEFAULT_FSTYPE.
595 */
596static void fsck_device(char *device, int interactive)
597{
598	const char *type = 0;
599	struct fs_info *fsent;
600	int retval;
601
602	if (fstype && strncmp(fstype, "no", 2) && !strchr(fstype, ','))
603		type = fstype;
604
605	if ((fsent = lookup(device))) {
606		device = fsent->device;
607		if (!type)
608			type = fsent->type;
609	}
610	if (!type)
611		type = DEFAULT_FSTYPE;
612
613	retval = execute(type, device, fsent ? fsent->mountpt : 0,
614			 interactive);
615	if (retval) {
616		fprintf(stderr, _("%s: Error %d while executing fsck.%s "
617			"for %s\n"), progname, retval, type, device);
618	}
619}
620
621/* See if filesystem type matches the list. */
622static int fs_match(char *type, char *fs_type)
623{
624  int ret = 0, negate = 0;
625  char list[128];
626  char *s;
627
628  if (!fs_type) return(1);
629
630  if (strncmp(fs_type, "no", 2) == 0) {
631	fs_type += 2;
632	negate = 1;
633  }
634  strcpy(list, fs_type);
635  s = strtok(list, ",");
636  while(s) {
637	if (strcmp(s, type) == 0) {
638		ret = 1;
639		break;
640	}
641	s = strtok(NULL, ",");
642  }
643  return(negate ? !ret : ret);
644}
645
646
647/* Check if we should ignore this filesystem. */
648static int ignore(struct fs_info *fs)
649{
650	const char **ip;
651	int wanted = 0;
652
653	/*
654	 * If the pass number is 0, ignore it.
655	 */
656	if (fs->passno == 0)
657		return 1;
658
659	/*
660	 * If a specific fstype is specified, and it doesn't match,
661	 * ignore it.
662	 */
663	if (!fs_match(fs->type, fstype)) return 1;
664
665	/* Are we ignoring this type? */
666	for(ip = ignored_types; *ip; ip++)
667		if (strcmp(fs->type, *ip) == 0) return(1);
668
669	/* Do we really really want to check this fs? */
670	for(ip = really_wanted; *ip; ip++)
671		if (strcmp(fs->type, *ip) == 0) {
672			wanted = 1;
673			break;
674		}
675
676	/* See if the <fsck.fs> program is available. */
677	if (find_fsck(fs->type) == NULL) {
678		if (wanted)
679			fprintf(stderr, _("fsck: cannot check %s: fsck.%s not found\n"),
680				fs->device, fs->type);
681		return(1);
682	}
683
684	/* We can and want to check this file system type. */
685	return 0;
686}
687
688/*
689 * Return the "base device" given a particular device; this is used to
690 * assure that we only fsck one partition on a particular drive at any
691 * one time.  Otherwise, the disk heads will be seeking all over the
692 * place.
693 */
694static const char *base_device(char *device)
695{
696	const char **base;
697
698	for (base = base_devices; *base; base++) {
699		if (!strncmp(*base, device, strlen(*base)))
700			return *base;
701	}
702	return device;
703}
704
705/*
706 * Returns TRUE if a partition on the same disk is already being
707 * checked.
708 */
709static int device_already_active(char *device)
710{
711	struct fsck_instance *inst;
712	const char *base = base_device(device);
713
714	if (force_all_parallel)
715		return 0;
716
717	for (inst = instance_list; inst; inst = inst->next) {
718		if (!strcmp(base, base_device(inst->device)))
719			return 1;
720	}
721	return 0;
722}
723
724/* Check all file systems, using the /etc/fstab table. */
725static int check_all(NOARGS)
726{
727	struct fs_info *fs = NULL;
728	struct fsck_instance *inst;
729	int status = EXIT_OK;
730	int not_done_yet = 1;
731	int passno = 1;
732	int pass_done;
733
734	if (verbose)
735		printf(_("Checking all file systems.\n"));
736
737	/*
738	 * Find and check the root filesystem first.
739	 */
740	if (!parallel_root) {
741		for (fs = filesys_info; fs; fs = fs->next) {
742			if (!strcmp(fs->mountpt, "/"))
743				break;
744		}
745		if (fs && !skip_root && !ignore(fs)) {
746			fsck_device(fs->device, 1);
747			fs->flags |= FLAG_DONE;
748			status |= wait_all();
749			if (status > EXIT_NONDESTRUCT)
750				return status;
751		}
752	}
753	if (fs) fs->flags |= FLAG_DONE;
754
755	/*
756	 * Mark filesystems that should be ignored as done.
757	 */
758	for (fs = filesys_info; fs; fs = fs->next) {
759		if (ignore(fs))
760			fs->flags |= FLAG_DONE;
761	}
762
763	while (not_done_yet) {
764		not_done_yet = 0;
765		pass_done = 1;
766
767		for (fs = filesys_info; fs; fs = fs->next) {
768			if (fs->flags & FLAG_DONE)
769				continue;
770			/*
771			 * If the filesystem's pass number is higher
772			 * than the current pass number, then we don't
773			 * do it yet.
774			 */
775			if (fs->passno > passno) {
776				not_done_yet++;
777				continue;
778			}
779			/*
780			 * If a filesystem on a particular device has
781			 * already been spawned, then we need to defer
782			 * this to another pass.
783			 */
784			if (device_already_active(fs->device)) {
785				pass_done = 0;
786				continue;
787			}
788			/*
789			 * Spawn off the fsck process
790			 */
791			fsck_device(fs->device, serialize);
792			fs->flags |= FLAG_DONE;
793
794			if (serialize) {
795				pass_done = 0;
796				break; /* Only do one filesystem at a time */
797			}
798		}
799		if (verbose > 1)
800			printf(_("--waiting-- (pass %d)\n"), passno);
801		inst = wait_one();
802		if (inst) {
803			status |= inst->exit_status;
804			free_instance(inst);
805		}
806		if (pass_done) {
807			status |= wait_all();
808			if (verbose > 1)
809				printf("----------------------------------\n");
810			passno++;
811		} else
812			not_done_yet++;
813	}
814	status |= wait_all();
815	return status;
816}
817
818static void usage(NOARGS)
819{
820	fprintf(stderr,
821		_("Usage: fsck [-ACNPRTV] [-t fstype] [fs-options] filesys\n"));
822	exit(EXIT_USAGE);
823}
824
825static void PRS(int argc, char *argv[])
826{
827	int	i, j;
828	char	*arg;
829	char	options[128];
830	int	opt = 0;
831	int     opts_for_fsck = 0;
832
833	num_devices = 0;
834	num_args = 0;
835	instance_list = 0;
836
837	progname = argv[0];
838
839	for (i=1; i < argc; i++) {
840		arg = argv[i];
841		if (!arg)
842			continue;
843		if ((arg[0] == '/' && !opts_for_fsck) ||
844		    (strncmp(arg, "LABEL=", 6) == 0) ||
845		    (strncmp(arg, "UUID=", 5) == 0)) {
846			if (num_devices >= MAX_DEVICES) {
847				fprintf(stderr, _("%s: too many devices\n"),
848					progname);
849				exit(1);
850			}
851			devices[num_devices++] =
852				interpret_device(string_copy(arg));
853			continue;
854		}
855		if (arg[0] != '-' || opts_for_fsck) {
856			if (num_args >= MAX_ARGS) {
857				fprintf(stderr, _("%s: too many arguments\n"),
858					progname);
859				exit(1);
860			}
861			args[num_args++] = string_copy(arg);
862			continue;
863		}
864		for (j=1; arg[j]; j++) {
865			if (opts_for_fsck) {
866				options[++opt] = arg[j];
867				continue;
868			}
869			switch (arg[j]) {
870			case 'A':
871				doall++;
872				break;
873			case 'C':
874				progress++;
875				break;
876			case 'V':
877				verbose++;
878				break;
879			case 'N':
880				noexecute++;
881				break;
882			case 'R':
883				skip_root++;
884				break;
885			case 'T':
886				notitle++;
887				break;
888			case 'M':
889				like_mount++;
890				break;
891			case 'P':
892				parallel_root++;
893				break;
894			case 's':
895				serialize++;
896				break;
897			case 't':
898				if (arg[j+1]) {
899					fstype = string_copy(arg+j+1);
900					goto next_arg;
901				}
902				if ((i+1) < argc) {
903					i++;
904					fstype = string_copy(argv[i]);
905					goto next_arg;
906				}
907				usage();
908				break;
909			case '-':
910				opts_for_fsck++;
911				break;
912			default:
913				options[++opt] = arg[j];
914				break;
915			}
916		}
917	next_arg:
918		if (opt) {
919			options[0] = '-';
920			options[++opt] = '\0';
921			if (num_args >= MAX_ARGS) {
922				fprintf(stderr,
923					_("%s: too many arguments\n"),
924					progname);
925				exit(1);
926			}
927			args[num_args++] = string_copy(options);
928			opt = 0;
929		}
930	}
931	if (getenv("FSCK_FORCE_ALL_PARALLEL"))
932		force_all_parallel++;
933}
934
935int main(int argc, char *argv[])
936{
937	int i;
938	int status = 0;
939	int interactive = 0;
940	char *oldpath = getenv("PATH");
941	const char *fstab;
942
943#ifdef ENABLE_NLS
944	setlocale(LC_MESSAGES, "");
945	bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
946	textdomain(NLS_CAT_NAME);
947#endif
948	PRS(argc, argv);
949
950	if (!notitle)
951		printf(_("Parallelizing fsck version %s (%s)\n"),
952			E2FSPROGS_VERSION, E2FSPROGS_DATE);
953
954	fstab = getenv("FSTAB_FILE");
955	if (!fstab)
956		fstab = _PATH_MNTTAB;
957	load_fs_info(fstab);
958
959	/* Update our search path to include uncommon directories. */
960	if (oldpath) {
961		fsck_path = malloc (strlen (fsck_prefix_path) + 1 +
962				    strlen (oldpath) + 1);
963		strcpy (fsck_path, fsck_prefix_path);
964		strcat (fsck_path, ":");
965		strcat (fsck_path, oldpath);
966	} else {
967		fsck_path = string_copy(fsck_prefix_path);
968	}
969
970	if ((num_devices == 1) || (serialize))
971		interactive = 1;
972
973	/* If -A was specified ("check all"), do that! */
974	if (doall)
975		return check_all();
976
977	for (i = 0 ; i < num_devices; i++) {
978		fsck_device(devices[i], interactive);
979		if (serialize) {
980			struct fsck_instance *inst;
981
982			inst = wait_one();
983			if (inst) {
984				status |= inst->exit_status;
985				free_instance(inst);
986			}
987		}
988	}
989	status |= wait_all();
990	free(fsck_path);
991	return status;
992}
993