[thirdparty/e2fsprogs.git] / misc / tune2fs.c

/*
 * tune2fs.c		- Change the file system parameters on
 *			  an unmounted second extended file system
 *
 * Copyright (C) 1992, 1993, 1994  Remy Card <card@masi.ibp.fr>
 *                                 Laboratoire MASI, Institut Blaise Pascal
 *                                 Universite Pierre et Marie Curie (Paris VI)
 *
 * Copyright 1995, 1996, 1997 by Theodore Ts'o.
 *
 * %Begin-Header%
 * This file may be redistributed under the terms of the GNU Public
 * License.
 * %End-Header%
 */

/*
 * History:
 * 93/06/01	- Creation
 * 93/10/31	- Added the -c option to change the maximal mount counts
 * 93/12/14	- Added -l flag to list contents of superblock
 *                M.J.E. Mol (marcel@duteca.et.tudelft.nl)
 *                F.W. ten Wolde (franky@duteca.et.tudelft.nl)
 * 93/12/29	- Added the -e option to change errors behavior
 * 94/02/27	- Ported to use the ext2fs library
 * 94/03/06	- Added the checks interval from Uwe Ohse (uwe@tirka.gun.de)
 */

#include <fcntl.h>
#include <grp.h>
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#else
extern char *optarg;
extern int optind;
#endif
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <sys/types.h>

#include <linux/ext2_fs.h>

#include "ext2fs/ext2fs.h"
#include "et/com_err.h"
#include "uuid/uuid.h"
#include "e2p/e2p.h"

#include "../version.h"
#include "nls-enable.h"

const char * program_name = "tune2fs";
char * device_name = NULL;
char * new_label = NULL;
char * new_last_mounted = NULL;
char * new_UUID = NULL;
int c_flag = 0;
int C_flag = 0;
int e_flag = 0;
int g_flag = 0;
int i_flag = 0;
int l_flag = 0;
int L_flag = 0;
int m_flag = 0;
int M_flag = 0;
int r_flag = 0;
int s_flag = -1;
int u_flag = 0;
int U_flag = 0;
int max_mount_count, mount_count;
unsigned long interval;
unsigned long reserved_ratio = 0;
unsigned long reserved_blocks = 0;
unsigned short errors;
unsigned long resgid = 0;
unsigned long resuid = 0;

#ifndef HAVE_STRCASECMP
static int strcasecmp (char *s1, char *s2)
{
	while (*s1 && *s2) {
		int ch1 = *s1++, ch2 = *s2++;
		if (isupper (ch1))
			ch1 = tolower (ch1);
		if (isupper (ch2))
			ch2 = tolower (ch2);
		if (ch1 != ch2)
			return ch1 - ch2;
	}
	return *s1 ? 1 : *s2 ? -1 : 0;
}
#endif

static void usage(void)
{
	fprintf(stderr, _("Usage: %s [-c max-mounts-count] [-e errors-behavior] "
		 "[-g group]\n"
		 "\t[-i interval[d|m|w]] [-l] [-s sparse-flag] "
		"[-m reserved-blocks-percent]\n"
		 "\t[-r reserved-blocks-count] [-u user] [-C mount-count]\n"
		 "\t[-L volume-label] [-M last-mounted-dir] [-U UUID]\n"
		 "\t[-O [^]feature[,...]] device\n"), program_name);
	exit (1);
}

static __u32 ok_features[3] = {
	0,					/* Compat */
	EXT2_FEATURE_INCOMPAT_FILETYPE,		/* Incompat */
	EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER	/* R/O compat */
};

static const char *please_fsck = N_("Please run e2fsck on the filesystem.\n");

int main (int argc, char ** argv)
{
	int c;
	char * tmp;
	errcode_t retval;
	ext2_filsys fs;
	struct ext2fs_sb *sb;
	struct group * gr;
	struct passwd * pw;
	int open_flag = 0;
	char *features_cmd = 0;

#ifdef ENABLE_NLS
	setlocale(LC_MESSAGES, "");
	bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
	textdomain(NLS_CAT_NAME);
#endif
	fprintf (stderr, _("tune2fs %s, %s for EXT2 FS %s, %s\n"),
		 E2FSPROGS_VERSION, E2FSPROGS_DATE,
		 EXT2FS_VERSION, EXT2FS_DATE);
	if (argc && *argv)
		program_name = *argv;
	initialize_ext2_error_table();
	while ((c = getopt (argc, argv, "c:e:g:i:lm:r:s:u:C:L:M:O:U:")) != EOF)
		switch (c)
		{
			case 'c':
				max_mount_count = strtoul (optarg, &tmp, 0);
				if (*tmp || max_mount_count > 16000) {
					com_err (program_name, 0,
						 _("bad mounts count - %s"),
						 optarg);
					usage();
				}
				c_flag = 1;
				open_flag = EXT2_FLAG_RW;
				break;
			case 'C':
				mount_count = strtoul (optarg, &tmp, 0);
				if (*tmp || mount_count > 16000) {
					com_err (program_name, 0,
						 _("bad mounts count - %s"),
						 optarg);
					usage();
				}
				C_flag = 1;
				open_flag = EXT2_FLAG_RW;
				break;
			case 'e':
				if (strcmp (optarg, "continue") == 0)
					errors = EXT2_ERRORS_CONTINUE;
				else if (strcmp (optarg, "remount-ro") == 0)
					errors = EXT2_ERRORS_RO;
				else if (strcmp (optarg, "panic") == 0)
					errors = EXT2_ERRORS_PANIC;
				else {
					com_err (program_name, 0,
						 _("bad error behavior - %s"),
						 optarg);
					usage();
				}
				e_flag = 1;
				open_flag = EXT2_FLAG_RW;
				break;
			case 'g':
				resgid = strtoul (optarg, &tmp, 0);
				if (*tmp) {
					gr = getgrnam (optarg);
					if (gr == NULL)
						tmp = optarg;
					else {
						resgid = gr->gr_gid;
						*tmp =0;
					}
				}
				if (*tmp) {
					com_err (program_name, 0,
						 _("bad gid/group name - %s"),
						 optarg);
					usage();
				}
				g_flag = 1;
				open_flag = EXT2_FLAG_RW;
				break;
			case 'i':
				interval = strtoul (optarg, &tmp, 0);
				switch (*tmp) {
				case 's':
					tmp++;
					break;
				case '\0':
				case 'd':
				case 'D': /* days */
					interval *= 86400;
					if (*tmp != '\0')
						tmp++;
					break;
				case 'm':
				case 'M': /* months! */
					interval *= 86400 * 30;
					tmp++;
					break;
				case 'w':
				case 'W': /* weeks */
					interval *= 86400 * 7;
					tmp++;
					break;
				}
				if (*tmp || interval > (365 * 86400)) {
					com_err (program_name, 0,
						_("bad interval - %s"), optarg);
					usage();
				}
				i_flag = 1;
				open_flag = EXT2_FLAG_RW;
				break;
			case 'l':
				l_flag = 1;
				break;
			case 'L':
				new_label = optarg;
				L_flag = 1;
				open_flag = EXT2_FLAG_RW;
				break;
			case 'm':
				reserved_ratio = strtoul (optarg, &tmp, 0);
				if (*tmp || reserved_ratio > 50) {
					com_err (program_name, 0,
						 _("bad reserved block ratio - %s"),
						 optarg);
					usage();
				}
				m_flag = 1;
				open_flag = EXT2_FLAG_RW;
				break;
			case 'M':
				new_last_mounted = optarg;
				M_flag = 1;
				open_flag = EXT2_FLAG_RW;
				break;
			case 'O':
				features_cmd = optarg;
				open_flag = EXT2_FLAG_RW;
				break;
			case 'r':
				reserved_blocks = strtoul (optarg, &tmp, 0);
				if (*tmp) {
					com_err (program_name, 0,
						 _("bad reserved blocks count - %s"),
						 optarg);
					usage();
				}
				r_flag = 1;
				open_flag = EXT2_FLAG_RW;
				break;
			case 's':
				s_flag = atoi(optarg);
				open_flag = EXT2_FLAG_RW;
				break;
			case 'u':
				resuid = strtoul (optarg, &tmp, 0);
				if (*tmp) {
					pw = getpwnam (optarg);
					if (pw == NULL)
						tmp = optarg;
					else {
						resuid = pw->pw_uid;
						*tmp = 0;
					}
				}
				if (*tmp) {
					com_err (program_name, 0,
						 _("bad uid/user name - %s"),
						 optarg);
					usage();
				}
				u_flag = 1;
				open_flag = EXT2_FLAG_RW;
				break;
			case 'U':
				new_UUID = optarg;
				U_flag = 1;
				open_flag = EXT2_FLAG_RW;
				break;
			default:
				usage();
		}
	if (optind < argc - 1 || optind == argc)
		usage();
	if (!open_flag && !l_flag)
		usage();
	device_name = argv[optind];
	retval = ext2fs_open (device_name, open_flag, 0, 0,
			      unix_io_manager, &fs);
        if (retval) {
		com_err (program_name, retval, _("while trying to open %s"),
			 device_name);
		printf(_("Couldn't find valid filesystem superblock.\n"));
		exit(1);
	}
	sb = (struct ext2fs_sb *) fs->super;

	if (c_flag) {
		fs->super->s_max_mnt_count = max_mount_count;
		ext2fs_mark_super_dirty(fs);
		printf (_("Setting maximal mount count to %d\n"),
			max_mount_count);
	}
	if (C_flag) {
		fs->super->s_mnt_count = mount_count;
		ext2fs_mark_super_dirty(fs);
		printf (_("Setting current mount count to %d\n"), mount_count);
	}
	if (e_flag) {
		fs->super->s_errors = errors;
		ext2fs_mark_super_dirty(fs);
		printf (_("Setting error behavior to %d\n"), errors);
	}
	if (g_flag)
#ifdef	EXT2_DEF_RESGID
	{
		fs->super->s_def_resgid = resgid;
		ext2fs_mark_super_dirty(fs);
		printf (_("Setting reserved blocks gid to %lu\n"), resgid);
	}
#else
		com_err (program_name, 0,
			 _("The -g option is not supported by this version -- "
			 "Recompile with a newer kernel"));
#endif
	if (i_flag) {
		fs->super->s_checkinterval = interval;
		ext2fs_mark_super_dirty(fs);
		printf (_("Setting interval between check %lu seconds\n"), interval);
	}
	if (m_flag) {
		fs->super->s_r_blocks_count = (fs->super->s_blocks_count / 100)
			* reserved_ratio;
		ext2fs_mark_super_dirty(fs);
		printf (_("Setting reserved blocks percentage to %lu (%u blocks)\n"),
			reserved_ratio, fs->super->s_r_blocks_count);
	}
	if (r_flag) {
		if (reserved_blocks >= fs->super->s_blocks_count) {
			com_err (program_name, 0,
				 _("reserved blocks count is too big (%ul)"),
				 reserved_blocks);
			exit (1);
		}
		fs->super->s_r_blocks_count = reserved_blocks;
		ext2fs_mark_super_dirty(fs);
		printf (_("Setting reserved blocks count to %lu\n"),
			reserved_blocks);
	}
	if (s_flag == 1) {
#ifdef EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
		if (sb->s_feature_ro_compat &
		    EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)
			fprintf(stderr, _("\nThe filesystem already"
				" has sparse superblocks.\n"));
		else {
			sb->s_feature_ro_compat |=
				EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
			fs->super->s_state &= ~EXT2_VALID_FS;
			ext2fs_mark_super_dirty(fs);
			printf(_("\nSparse superblock flag set.  %s"),
			       _(please_fsck));
		}
#else /* !EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER */
		com_err (program_name, 0,
			 _("The -s option is not supported by this version -- "
			 "Recompile with a newer kernel"));
#endif /* EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER */
	}
	if (s_flag == 0) {
#ifdef EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
		if (!(sb->s_feature_ro_compat &
		      EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER))
			fprintf(stderr, _("\nThe filesystem already"
				" has sparse superblocks disabled.\n"));
		else {
			sb->s_feature_ro_compat &=
				~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
			fs->super->s_state &= ~EXT2_VALID_FS;
			fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
			ext2fs_mark_super_dirty(fs);
			printf(_("\nSparse superblock flag cleared.  %s"),
			       _(please_fsck));
		}
#else /* !EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER */
		com_err (program_name, 0,
			 _("The -s option is not supported by this version -- "
			 "Recompile with a newer kernel"));
#endif /* EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER */
	}
	
	if (u_flag)
#ifdef	EXT2_DEF_RESUID
	{
		fs->super->s_def_resuid = resuid;
		ext2fs_mark_super_dirty(fs);
		printf (_("Setting reserved blocks uid to %lu\n"), resuid);
	}
#else
		com_err (program_name, 0,
			 _("The -u option is not supported by this version -- "
			 "Recompile with a newer kernel"));
#endif
	if (L_flag) {
		if (strlen(new_label) > sizeof(sb->s_volume_name))
			fprintf(stderr, _("Warning: label too "
				"long, truncating.\n"));
		memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name));
		strncpy(sb->s_volume_name, new_label,
			sizeof(sb->s_volume_name));
		ext2fs_mark_super_dirty(fs);
	}
	if (M_flag) {
		memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted));
		strncpy(sb->s_last_mounted, new_last_mounted,
			sizeof(sb->s_last_mounted));
		ext2fs_mark_super_dirty(fs);
	}
	if (features_cmd) {
		int sparse, old_sparse, filetype, old_filetype;

		old_sparse = sb->s_feature_ro_compat &
			EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
		old_filetype = sb->s_feature_incompat &
			EXT2_FEATURE_INCOMPAT_FILETYPE;
		if (e2p_edit_feature(features_cmd,
				     &sb->s_feature_compat,
				     ok_features)) {
			fprintf(stderr, _("Invalid filesystem option set: %s\n"),
				features_cmd);
			exit(1);
		}
		sparse = sb->s_feature_ro_compat &
			EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
		filetype = sb->s_feature_incompat &
			EXT2_FEATURE_INCOMPAT_FILETYPE;
		if ((sparse != old_sparse) ||
		    (filetype != old_filetype)) {
			fs->super->s_state &= ~EXT2_VALID_FS;
			printf("\n%s\n", _(please_fsck));
		}
		ext2fs_mark_super_dirty(fs);
	}
	if (U_flag) {
		if (strcasecmp(new_UUID, "null") == 0) {
			uuid_clear(sb->s_uuid);
		} else if (strcasecmp(new_UUID, "random") == 0) {
			uuid_generate(sb->s_uuid);
		} else if (uuid_parse(new_UUID, sb->s_uuid)) {
			com_err(program_name, 0, _("Invalid UUID format\n"));
			exit(1);
		}
		ext2fs_mark_super_dirty(fs);
	}

	if (l_flag)
		list_super (fs->super);
	ext2fs_close (fs);
	exit (0);
}
Commit	Line	Data
3839e657 TT	1	/*
	2	* tune2fs.c - Change the file system parameters on
	3	* an unmounted second extended file system
	4	*
	5	* Copyright (C) 1992, 1993, 1994 Remy Card <card@masi.ibp.fr>
	6	* Laboratoire MASI, Institut Blaise Pascal
	7	* Universite Pierre et Marie Curie (Paris VI)
	8	*
19c78dc0 TT	9	* Copyright 1995, 1996, 1997 by Theodore Ts'o.
	10	*
	11	* %Begin-Header%
	12	* This file may be redistributed under the terms of the GNU Public
	13	* License.
	14	* %End-Header%
3839e657 TT	15	*/
	16
	17	/*
	18	* History:
	19	* 93/06/01 - Creation
	20	* 93/10/31 - Added the -c option to change the maximal mount counts
	21	* 93/12/14 - Added -l flag to list contents of superblock
	22	* M.J.E. Mol (marcel@duteca.et.tudelft.nl)
	23	* F.W. ten Wolde (franky@duteca.et.tudelft.nl)
	24	* 93/12/29 - Added the -e option to change errors behavior
	25	* 94/02/27 - Ported to use the ext2fs library
	26	* 94/03/06 - Added the checks interval from Uwe Ohse (uwe@tirka.gun.de)
	27	*/
	28
	29	#include <fcntl.h>
f3db3566	30	#include <grp.h>
a418d3ad	31	#ifdef HAVE_GETOPT_H
3839e657	32	#include <getopt.h>
373b8337 TT	33	#else
	34	extern char *optarg;
	35	extern int optind;
a418d3ad	36	#endif
f3db3566	37	#include <pwd.h>
3839e657 TT	38	#include <stdio.h>
	39	#include <stdlib.h>
	40	#include <string.h>
	41	#include <time.h>
	42	#include <unistd.h>
f3db3566	43	#include <sys/types.h>
3839e657 TT	44
	45	#include <linux/ext2_fs.h>
	46
	47	#include "ext2fs/ext2fs.h"
	48	#include "et/com_err.h"
1e3472c5	49	#include "uuid/uuid.h"
3839e657 TT	50	#include "e2p/e2p.h"
	51
	52	#include "../version.h"
d9c56d3c	53	#include "nls-enable.h"
3839e657 TT	54
	55	const char * program_name = "tune2fs";
	56	char * device_name = NULL;
1e3472c5 TT	57	char * new_label = NULL;
	58	char * new_last_mounted = NULL;
	59	char * new_UUID = NULL;
3839e657	60	int c_flag = 0;
1e3472c5	61	int C_flag = 0;
3839e657	62	int e_flag = 0;
f3db3566	63	int g_flag = 0;
3839e657 TT	64	int i_flag = 0;
3839e657 TT	65	int l_flag = 0;
1e3472c5	66	int L_flag = 0;
3839e657	67	int m_flag = 0;
1e3472c5	68	int M_flag = 0;
f3db3566	69	int r_flag = 0;
521e3685	70	int s_flag = -1;
f3db3566	71	int u_flag = 0;
1e3472c5 TT	72	int U_flag = 0;
1e3472c5 TT	73	int max_mount_count, mount_count;
3839e657 TT	74	unsigned long interval;
3839e657 TT	75	unsigned long reserved_ratio = 0;
f3db3566	76	unsigned long reserved_blocks = 0;
3839e657	77	unsigned short errors;
f3db3566 TT	78	unsigned long resgid = 0;
f3db3566 TT	79	unsigned long resuid = 0;
3839e657	80
1e3472c5 TT	81	#ifndef HAVE_STRCASECMP
	82	static int strcasecmp (char s1, char s2)
	83	{
	84	while (s1 && s2) {
	85	int ch1 = s1++, ch2 = s2++;
	86	if (isupper (ch1))
	87	ch1 = tolower (ch1);
	88	if (isupper (ch2))
	89	ch2 = tolower (ch2);
	90	if (ch1 != ch2)
	91	return ch1 - ch2;
	92	}
	93	return s1 ? 1 : s2 ? -1 : 0;
	94	}
	95	#endif
	96
818180cd	97	static void usage(void)
3839e657	98	{
d9c56d3c	99	fprintf(stderr, _("Usage: %s [-c max-mounts-count] [-e errors-behavior] "
f3db3566	100	"[-g group]\n"
582134cc TT	101	"\t[-i interval[d\|m\|w]] [-l] [-s sparse-flag] "
582134cc TT	102	"[-m reserved-blocks-percent]\n"
1e3472c5	103	"\t[-r reserved-blocks-count] [-u user] [-C mount-count]\n"
896938d5	104	"\t[-L volume-label] [-M last-mounted-dir] [-U UUID]\n"
d9c56d3c	105	"\t[-O [^]feature[,...]] device\n"), program_name);
3839e657 TT	106	exit (1);
	107	}
	108
896938d5 TT	109	static __u32 ok_features[3] = {
	110	0, /* Compat */
	111	EXT2_FEATURE_INCOMPAT_FILETYPE, /* Incompat */
	112	EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER /* R/O compat */
	113	};
	114
a4fa100c	115	static const char *please_fsck = N_("Please run e2fsck on the filesystem.\n");
896938d5	116
00e5433e	117	int main (int argc, char ** argv)
3839e657	118	{
519149fb	119	int c;
3839e657 TT	120	char * tmp;
	121	errcode_t retval;
	122	ext2_filsys fs;
1e3472c5	123	struct ext2fs_sb *sb;
f3db3566 TT	124	struct group * gr;
f3db3566 TT	125	struct passwd * pw;
1e3472c5	126	int open_flag = 0;
896938d5	127	char *features_cmd = 0;
3839e657	128
d9c56d3c TT	129	#ifdef ENABLE_NLS
	130	setlocale(LC_MESSAGES, "");
	131	bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
	132	textdomain(NLS_CAT_NAME);
	133	#endif
	134	fprintf (stderr, _("tune2fs %s, %s for EXT2 FS %s, %s\n"),
3839e657 TT	135	E2FSPROGS_VERSION, E2FSPROGS_DATE,
	136	EXT2FS_VERSION, EXT2FS_DATE);
	137	if (argc && *argv)
	138	program_name = *argv;
	139	initialize_ext2_error_table();
896938d5	140	while ((c = getopt (argc, argv, "c:e:g:i:lm:r:s:u:C:L:M:O:U:")) != EOF)
3839e657 TT	141	switch (c)
	142	{
	143	case 'c':
	144	max_mount_count = strtoul (optarg, &tmp, 0);
818180cd	145	if (*tmp \|\| max_mount_count > 16000) {
3839e657	146	com_err (program_name, 0,
d9c56d3c	147	_("bad mounts count - %s"),
3839e657	148	optarg);
818180cd	149	usage();
3839e657 TT	150	}
3839e657 TT	151	c_flag = 1;
1e3472c5 TT	152	open_flag = EXT2_FLAG_RW;
	153	break;
	154	case 'C':
	155	mount_count = strtoul (optarg, &tmp, 0);
818180cd	156	if (*tmp \|\| mount_count > 16000) {
1e3472c5	157	com_err (program_name, 0,
d9c56d3c	158	_("bad mounts count - %s"),
1e3472c5	159	optarg);
818180cd	160	usage();
1e3472c5 TT	161	}
	162	C_flag = 1;
	163	open_flag = EXT2_FLAG_RW;
3839e657 TT	164	break;
	165	case 'e':
	166	if (strcmp (optarg, "continue") == 0)
	167	errors = EXT2_ERRORS_CONTINUE;
	168	else if (strcmp (optarg, "remount-ro") == 0)
	169	errors = EXT2_ERRORS_RO;
	170	else if (strcmp (optarg, "panic") == 0)
	171	errors = EXT2_ERRORS_PANIC;
818180cd	172	else {
3839e657	173	com_err (program_name, 0,
d9c56d3c	174	_("bad error behavior - %s"),
3839e657	175	optarg);
818180cd	176	usage();
3839e657 TT	177	}
3839e657 TT	178	e_flag = 1;
1e3472c5	179	open_flag = EXT2_FLAG_RW;
3839e657	180	break;
f3db3566 TT	181	case 'g':
f3db3566 TT	182	resgid = strtoul (optarg, &tmp, 0);
818180cd	183	if (*tmp) {
f3db3566 TT	184	gr = getgrnam (optarg);
	185	if (gr == NULL)
	186	tmp = optarg;
a418d3ad	187	else {
f3db3566	188	resgid = gr->gr_gid;
a418d3ad TT	189	*tmp =0;
a418d3ad TT	190	}
f3db3566	191	}
818180cd	192	if (*tmp) {
f3db3566	193	com_err (program_name, 0,
d9c56d3c	194	_("bad gid/group name - %s"),
f3db3566	195	optarg);
818180cd	196	usage();
f3db3566 TT	197	}
f3db3566 TT	198	g_flag = 1;
1e3472c5	199	open_flag = EXT2_FLAG_RW;
f3db3566	200	break;
3839e657 TT	201	case 'i':
3839e657 TT	202	interval = strtoul (optarg, &tmp, 0);
1e3472c5 TT	203	switch (*tmp) {
	204	case 's':
	205	tmp++;
	206	break;
	207	case '\0':
	208	case 'd':
	209	case 'D': /* days */
	210	interval *= 86400;
	211	if (*tmp != '\0')
f3db3566	212	tmp++;
1e3472c5 TT	213	break;
	214	case 'm':
	215	case 'M': /* months! */
	216	interval = 86400 30;
	217	tmp++;
	218	break;
	219	case 'w':
	220	case 'W': /* weeks */
	221	interval = 86400 7;
	222	tmp++;
	223	break;
3839e657	224	}
818180cd	225	if (tmp \|\| interval > (365 86400)) {
3839e657	226	com_err (program_name, 0,
d9c56d3c	227	_("bad interval - %s"), optarg);
818180cd	228	usage();
3839e657 TT	229	}
3839e657 TT	230	i_flag = 1;
1e3472c5	231	open_flag = EXT2_FLAG_RW;
3839e657 TT	232	break;
	233	case 'l':
	234	l_flag = 1;
	235	break;
1e3472c5 TT	236	case 'L':
	237	new_label = optarg;
	238	L_flag = 1;
	239	open_flag = EXT2_FLAG_RW;
	240	break;
3839e657 TT	241	case 'm':
3839e657 TT	242	reserved_ratio = strtoul (optarg, &tmp, 0);
818180cd	243	if (*tmp \|\| reserved_ratio > 50) {
3839e657	244	com_err (program_name, 0,
d9c56d3c	245	_("bad reserved block ratio - %s"),
3839e657	246	optarg);
818180cd	247	usage();
3839e657 TT	248	}
3839e657 TT	249	m_flag = 1;
1e3472c5 TT	250	open_flag = EXT2_FLAG_RW;
	251	break;
	252	case 'M':
	253	new_last_mounted = optarg;
	254	M_flag = 1;
	255	open_flag = EXT2_FLAG_RW;
3839e657	256	break;
896938d5 TT	257	case 'O':
	258	features_cmd = optarg;
	259	open_flag = EXT2_FLAG_RW;
	260	break;
f3db3566 TT	261	case 'r':
f3db3566 TT	262	reserved_blocks = strtoul (optarg, &tmp, 0);
818180cd	263	if (*tmp) {
f3db3566	264	com_err (program_name, 0,
d9c56d3c	265	_("bad reserved blocks count - %s"),
f3db3566	266	optarg);
818180cd	267	usage();
f3db3566 TT	268	}
f3db3566 TT	269	r_flag = 1;
1e3472c5	270	open_flag = EXT2_FLAG_RW;
f3db3566	271	break;
521e3685 TT	272	case 's':
	273	s_flag = atoi(optarg);
	274	open_flag = EXT2_FLAG_RW;
	275	break;
f3db3566 TT	276	case 'u':
f3db3566 TT	277	resuid = strtoul (optarg, &tmp, 0);
818180cd	278	if (*tmp) {
f3db3566 TT	279	pw = getpwnam (optarg);
	280	if (pw == NULL)
	281	tmp = optarg;
a418d3ad	282	else {
f3db3566	283	resuid = pw->pw_uid;
a418d3ad TT	284	*tmp = 0;
a418d3ad TT	285	}
f3db3566	286	}
818180cd	287	if (*tmp) {
f3db3566	288	com_err (program_name, 0,
d9c56d3c	289	_("bad uid/user name - %s"),
f3db3566	290	optarg);
818180cd	291	usage();
f3db3566 TT	292	}
f3db3566 TT	293	u_flag = 1;
1e3472c5 TT	294	open_flag = EXT2_FLAG_RW;
	295	break;
	296	case 'U':
	297	new_UUID = optarg;
	298	U_flag = 1;
	299	open_flag = EXT2_FLAG_RW;
f3db3566	300	break;
3839e657	301	default:
818180cd	302	usage();
3839e657 TT	303	}
3839e657 TT	304	if (optind < argc - 1 \|\| optind == argc)
818180cd	305	usage();
1e3472c5 TT	306	if (!open_flag && !l_flag)
1e3472c5 TT	307	usage();
3839e657	308	device_name = argv[optind];
1e3472c5 TT	309	retval = ext2fs_open (device_name, open_flag, 0, 0,
1e3472c5 TT	310	unix_io_manager, &fs);
818180cd	311	if (retval) {
d9c56d3c	312	com_err (program_name, retval, _("while trying to open %s"),
3839e657	313	device_name);
d9c56d3c	314	printf(_("Couldn't find valid filesystem superblock.\n"));
3839e657 TT	315	exit(1);
3839e657 TT	316	}
1e3472c5	317	sb = (struct ext2fs_sb *) fs->super;
3839e657	318
1e3472c5	319	if (c_flag) {
3839e657 TT	320	fs->super->s_max_mnt_count = max_mount_count;
3839e657 TT	321	ext2fs_mark_super_dirty(fs);
d9c56d3c	322	printf (_("Setting maximal mount count to %d\n"),
1e3472c5	323	max_mount_count);
3839e657	324	}
1e3472c5 TT	325	if (C_flag) {
	326	fs->super->s_mnt_count = mount_count;
	327	ext2fs_mark_super_dirty(fs);
d9c56d3c	328	printf (_("Setting current mount count to %d\n"), mount_count);
1e3472c5 TT	329	}
1e3472c5 TT	330	if (e_flag) {
3839e657 TT	331	fs->super->s_errors = errors;
3839e657 TT	332	ext2fs_mark_super_dirty(fs);
d9c56d3c	333	printf (_("Setting error behavior to %d\n"), errors);
3839e657	334	}
f3db3566 TT	335	if (g_flag)
	336	#ifdef EXT2_DEF_RESGID
	337	{
	338	fs->super->s_def_resgid = resgid;
	339	ext2fs_mark_super_dirty(fs);
d9c56d3c	340	printf (_("Setting reserved blocks gid to %lu\n"), resgid);
f3db3566 TT	341	}
	342	#else
	343	com_err (program_name, 0,
d9c56d3c TT	344	_("The -g option is not supported by this version -- "
d9c56d3c TT	345	"Recompile with a newer kernel"));
f3db3566	346	#endif
818180cd	347	if (i_flag) {
3839e657 TT	348	fs->super->s_checkinterval = interval;
3839e657 TT	349	ext2fs_mark_super_dirty(fs);
d9c56d3c	350	printf (_("Setting interval between check %lu seconds\n"), interval);
3839e657	351	}
818180cd	352	if (m_flag) {
3839e657 TT	353	fs->super->s_r_blocks_count = (fs->super->s_blocks_count / 100)
	354	* reserved_ratio;
	355	ext2fs_mark_super_dirty(fs);
d9c56d3c	356	printf (_("Setting reserved blocks percentage to %lu (%u blocks)\n"),
3839e657 TT	357	reserved_ratio, fs->super->s_r_blocks_count);
3839e657 TT	358	}
818180cd TT	359	if (r_flag) {
818180cd TT	360	if (reserved_blocks >= fs->super->s_blocks_count) {
f3db3566	361	com_err (program_name, 0,
d9c56d3c	362	_("reserved blocks count is too big (%ul)"),
f3db3566 TT	363	reserved_blocks);
	364	exit (1);
	365	}
	366	fs->super->s_r_blocks_count = reserved_blocks;
	367	ext2fs_mark_super_dirty(fs);
d9c56d3c	368	printf (_("Setting reserved blocks count to %lu\n"),
f3db3566 TT	369	reserved_blocks);
f3db3566 TT	370	}
521e3685 TT	371	if (s_flag == 1) {
	372	#ifdef EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
	373	if (sb->s_feature_ro_compat &
	374	EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)
d9c56d3c	375	fprintf(stderr, _("\nThe filesystem already"
e1a0a3e3	376	" has sparse superblocks.\n"));
521e3685 TT	377	else {
	378	sb->s_feature_ro_compat \|=
	379	EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
	380	fs->super->s_state &= ~EXT2_VALID_FS;
	381	ext2fs_mark_super_dirty(fs);
d9c56d3c	382	printf(_("\nSparse superblock flag set. %s"),
a4fa100c	383	_(please_fsck));
521e3685 TT	384	}
	385	#else /* !EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER */
	386	com_err (program_name, 0,
d9c56d3c TT	387	_("The -s option is not supported by this version -- "
d9c56d3c TT	388	"Recompile with a newer kernel"));
521e3685 TT	389	#endif /* EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER */
	390	}
	391	if (s_flag == 0) {
	392	#ifdef EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
	393	if (!(sb->s_feature_ro_compat &
	394	EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER))
d9c56d3c	395	fprintf(stderr, _("\nThe filesystem already"
e1a0a3e3	396	" has sparse superblocks disabled.\n"));
521e3685 TT	397	else {
	398	sb->s_feature_ro_compat &=
	399	~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
	400	fs->super->s_state &= ~EXT2_VALID_FS;
	401	fs->flags \|= EXT2_FLAG_MASTER_SB_ONLY;
	402	ext2fs_mark_super_dirty(fs);
d9c56d3c	403	printf(_("\nSparse superblock flag cleared. %s"),
a4fa100c	404	_(please_fsck));
521e3685 TT	405	}
	406	#else /* !EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER */
	407	com_err (program_name, 0,
d9c56d3c TT	408	_("The -s option is not supported by this version -- "
d9c56d3c TT	409	"Recompile with a newer kernel"));
521e3685 TT	410	#endif /* EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER */
	411	}
	412
f3db3566 TT	413	if (u_flag)
	414	#ifdef EXT2_DEF_RESUID
	415	{
	416	fs->super->s_def_resuid = resuid;
	417	ext2fs_mark_super_dirty(fs);
d9c56d3c	418	printf (_("Setting reserved blocks uid to %lu\n"), resuid);
f3db3566 TT	419	}
	420	#else
	421	com_err (program_name, 0,
d9c56d3c TT	422	_("The -u option is not supported by this version -- "
d9c56d3c TT	423	"Recompile with a newer kernel"));
f3db3566	424	#endif
1e3472c5	425	if (L_flag) {
a789d840	426	if (strlen(new_label) > sizeof(sb->s_volume_name))
d9c56d3c TT	427	fprintf(stderr, _("Warning: label too "
d9c56d3c TT	428	"long, truncating.\n"));
1e3472c5 TT	429	memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name));
	430	strncpy(sb->s_volume_name, new_label,
	431	sizeof(sb->s_volume_name));
	432	ext2fs_mark_super_dirty(fs);
	433	}
	434	if (M_flag) {
	435	memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted));
	436	strncpy(sb->s_last_mounted, new_last_mounted,
	437	sizeof(sb->s_last_mounted));
	438	ext2fs_mark_super_dirty(fs);
	439	}
896938d5 TT	440	if (features_cmd) {
	441	int sparse, old_sparse, filetype, old_filetype;
	442
	443	old_sparse = sb->s_feature_ro_compat &
	444	EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
	445	old_filetype = sb->s_feature_incompat &
	446	EXT2_FEATURE_INCOMPAT_FILETYPE;
	447	if (e2p_edit_feature(features_cmd,
	448	&sb->s_feature_compat,
	449	ok_features)) {
d9c56d3c	450	fprintf(stderr, _("Invalid filesystem option set: %s\n"),
896938d5 TT	451	features_cmd);
	452	exit(1);
	453	}
	454	sparse = sb->s_feature_ro_compat &
	455	EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
	456	filetype = sb->s_feature_incompat &
	457	EXT2_FEATURE_INCOMPAT_FILETYPE;
	458	if ((sparse != old_sparse) \|\|
	459	(filetype != old_filetype)) {
	460	fs->super->s_state &= ~EXT2_VALID_FS;
a4fa100c	461	printf("\n%s\n", _(please_fsck));
896938d5 TT	462	}
	463	ext2fs_mark_super_dirty(fs);
	464	}
1e3472c5 TT	465	if (U_flag) {
	466	if (strcasecmp(new_UUID, "null") == 0) {
	467	uuid_clear(sb->s_uuid);
	468	} else if (strcasecmp(new_UUID, "random") == 0) {
	469	uuid_generate(sb->s_uuid);
	470	} else if (uuid_parse(new_UUID, sb->s_uuid)) {
d9c56d3c	471	com_err(program_name, 0, _("Invalid UUID format\n"));
1e3472c5 TT	472	exit(1);
	473	}
	474	ext2fs_mark_super_dirty(fs);
	475	}
	476
3839e657 TT	477	if (l_flag)
	478	list_super (fs->super);
	479	ext2fs_close (fs);
	480	exit (0);
	481	}