/
unix.c
2094 lines (1922 loc) · 56.6 KB
/
unix.c
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/*
* unix.c - The unix-specific code for e2fsck
*
* Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Public
* License.
* %End-Header%
*/
#define _XOPEN_SOURCE 600 /* for inclusion of sa_handler in Solaris */
#include "config.h"
#include <stdio.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <string.h>
#include <fcntl.h>
#include <ctype.h>
#include <time.h>
#ifdef HAVE_SIGNAL_H
#include <signal.h>
#endif
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#else
extern char *optarg;
extern int optind;
#endif
#include <unistd.h>
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_DIRENT_H
#include <dirent.h>
#endif
#include <libgen.h>
#include "e2p/e2p.h"
#include "et/com_err.h"
#include "e2p/e2p.h"
#include "uuid/uuid.h"
#include "support/plausible.h"
#include "e2fsck.h"
#include "problem.h"
#include "jfs_user.h"
#include "../version.h"
/* Command line options */
static int cflag; /* check disk */
static int show_version_only;
static int verbose;
static int replace_bad_blocks;
static int keep_bad_blocks;
static char *bad_blocks_file;
e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
#ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jbd-debug */
int journal_enable_debug = -1;
#endif
static void usage(e2fsck_t ctx)
{
fprintf(stderr,
_("Usage: %s [-panyrcdfktvDFV] [-b superblock] [-B blocksize]\n"
"\t\t[-l|-L bad_blocks_file] [-C fd] [-j external_journal]\n"
"\t\t[-E extended-options] [-z undo_file] device\n"),
ctx->program_name);
fprintf(stderr, "%s", _("\nEmergency help:\n"
" -p Automatic repair (no questions)\n"
" -n Make no changes to the filesystem\n"
" -y Assume \"yes\" to all questions\n"
" -c Check for bad blocks and add them to the badblock list\n"
" -f Force checking even if filesystem is marked clean\n"));
fprintf(stderr, "%s", _(""
" -v Be verbose\n"
" -b superblock Use alternative superblock\n"
" -B blocksize Force blocksize when looking for superblock\n"
" -j external_journal Set location of the external journal\n"
" -l bad_blocks_file Add to badblocks list\n"
" -L bad_blocks_file Set badblocks list\n"
" -z undo_file Create an undo file\n"
));
exit(FSCK_USAGE);
}
static void show_stats(e2fsck_t ctx)
{
ext2_filsys fs = ctx->fs;
ext2_ino_t inodes, inodes_used;
blk64_t blocks, blocks_used;
unsigned int dir_links;
unsigned int num_files, num_links;
__u32 *mask, m;
int frag_percent_file = 0, frag_percent_dir = 0, frag_percent_total = 0;
int i, j, printed = 0;
dir_links = 2 * ctx->fs_directory_count - 1;
num_files = ctx->fs_total_count - dir_links;
num_links = ctx->fs_links_count - dir_links;
inodes = fs->super->s_inodes_count;
inodes_used = (fs->super->s_inodes_count -
fs->super->s_free_inodes_count);
blocks = ext2fs_blocks_count(fs->super);
blocks_used = (ext2fs_blocks_count(fs->super) -
ext2fs_free_blocks_count(fs->super));
if (inodes_used > 0) {
frag_percent_file = (10000 * ctx->fs_fragmented) / inodes_used;
frag_percent_file = (frag_percent_file + 5) / 10;
frag_percent_dir = (10000 * ctx->fs_fragmented_dir) / inodes_used;
frag_percent_dir = (frag_percent_dir + 5) / 10;
frag_percent_total = ((10000 * (ctx->fs_fragmented +
ctx->fs_fragmented_dir))
/ inodes_used);
frag_percent_total = (frag_percent_total + 5) / 10;
}
if (!verbose) {
log_out(ctx, _("%s: %u/%u files (%0d.%d%% non-contiguous), "
"%llu/%llu blocks\n"),
ctx->device_name, inodes_used, inodes,
frag_percent_total / 10, frag_percent_total % 10,
(unsigned long long) blocks_used,
(unsigned long long) blocks);
return;
}
profile_get_boolean(ctx->profile, "options", "report_features", 0, 0,
&i);
if (verbose && i) {
log_out(ctx, "\nFilesystem features:");
mask = &ctx->fs->super->s_feature_compat;
for (i = 0; i < 3; i++, mask++) {
for (j = 0, m = 1; j < 32; j++, m <<= 1) {
if (*mask & m) {
log_out(ctx, " %s",
e2p_feature2string(i, m));
printed++;
}
}
}
if (printed == 0)
log_out(ctx, " (none)");
log_out(ctx, "\n");
}
log_out(ctx, P_("\n%12u inode used (%2.2f%%, out of %u)\n",
"\n%12u inodes used (%2.2f%%, out of %u)\n",
inodes_used), inodes_used,
100.0 * inodes_used / inodes, inodes);
log_out(ctx, P_("%12u non-contiguous file (%0d.%d%%)\n",
"%12u non-contiguous files (%0d.%d%%)\n",
ctx->fs_fragmented),
ctx->fs_fragmented, frag_percent_file / 10,
frag_percent_file % 10);
log_out(ctx, P_("%12u non-contiguous directory (%0d.%d%%)\n",
"%12u non-contiguous directories (%0d.%d%%)\n",
ctx->fs_fragmented_dir),
ctx->fs_fragmented_dir, frag_percent_dir / 10,
frag_percent_dir % 10);
log_out(ctx, _(" # of inodes with ind/dind/tind blocks: "
"%u/%u/%u\n"),
ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count);
for (j=MAX_EXTENT_DEPTH_COUNT-1; j >=0; j--)
if (ctx->extent_depth_count[j])
break;
if (++j) {
log_out(ctx, "%s", _(" Extent depth histogram: "));
for (i=0; i < j; i++) {
if (i)
fputc('/', stdout);
log_out(ctx, "%u", ctx->extent_depth_count[i]);
}
log_out(ctx, "\n");
}
log_out(ctx, P_("%12llu block used (%2.2f%%, out of %llu)\n",
"%12llu blocks used (%2.2f%%, out of %llu)\n",
blocks_used),
(unsigned long long) blocks_used, 100.0 * blocks_used / blocks,
(unsigned long long) blocks);
log_out(ctx, P_("%12u bad block\n", "%12u bad blocks\n",
ctx->fs_badblocks_count), ctx->fs_badblocks_count);
log_out(ctx, P_("%12u large file\n", "%12u large files\n",
ctx->large_files), ctx->large_files);
log_out(ctx, P_("\n%12u regular file\n", "\n%12u regular files\n",
ctx->fs_regular_count), ctx->fs_regular_count);
log_out(ctx, P_("%12u directory\n", "%12u directories\n",
ctx->fs_directory_count), ctx->fs_directory_count);
log_out(ctx, P_("%12u character device file\n",
"%12u character device files\n", ctx->fs_chardev_count),
ctx->fs_chardev_count);
log_out(ctx, P_("%12u block device file\n", "%12u block device files\n",
ctx->fs_blockdev_count), ctx->fs_blockdev_count);
log_out(ctx, P_("%12u fifo\n", "%12u fifos\n", ctx->fs_fifo_count),
ctx->fs_fifo_count);
log_out(ctx, P_("%12u link\n", "%12u links\n", num_links),
ctx->fs_links_count - dir_links);
log_out(ctx, P_("%12u symbolic link", "%12u symbolic links",
ctx->fs_symlinks_count), ctx->fs_symlinks_count);
log_out(ctx, P_(" (%u fast symbolic link)\n",
" (%u fast symbolic links)\n",
ctx->fs_fast_symlinks_count),
ctx->fs_fast_symlinks_count);
log_out(ctx, P_("%12u socket\n", "%12u sockets\n",
ctx->fs_sockets_count),
ctx->fs_sockets_count);
log_out(ctx, "------------\n");
log_out(ctx, P_("%12u file\n", "%12u files\n", num_files),
num_files);
}
static void check_mount(e2fsck_t ctx)
{
errcode_t retval;
int cont;
retval = ext2fs_check_if_mounted(ctx->filesystem_name,
&ctx->mount_flags);
if (retval) {
com_err("ext2fs_check_if_mount", retval,
_("while determining whether %s is mounted."),
ctx->filesystem_name);
return;
}
/*
* If the filesystem isn't mounted, or it's the root
* filesystem and it's mounted read-only, and we're not doing
* a read/write check, then everything's fine.
*/
if ((!(ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY))) ||
((ctx->mount_flags & EXT2_MF_ISROOT) &&
(ctx->mount_flags & EXT2_MF_READONLY) &&
!(ctx->options & E2F_OPT_WRITECHECK)))
return;
if (((ctx->options & E2F_OPT_READONLY) ||
((ctx->options & E2F_OPT_FORCE) &&
(ctx->mount_flags & EXT2_MF_READONLY))) &&
!(ctx->options & E2F_OPT_WRITECHECK)) {
if (ctx->mount_flags & EXT2_MF_MOUNTED)
log_out(ctx, _("Warning! %s is mounted.\n"),
ctx->filesystem_name);
else
log_out(ctx, _("Warning! %s is in use.\n"),
ctx->filesystem_name);
return;
}
if (ctx->mount_flags & EXT2_MF_MOUNTED)
log_out(ctx, _("%s is mounted.\n"), ctx->filesystem_name);
else
log_out(ctx, _("%s is in use.\n"), ctx->filesystem_name);
if (!ctx->interactive || ctx->mount_flags & EXT2_MF_BUSY)
fatal_error(ctx, _("Cannot continue, aborting.\n\n"));
puts("\007\007\007\007");
log_out(ctx, "%s", _("\n\nWARNING!!! "
"The filesystem is mounted. "
"If you continue you ***WILL***\n"
"cause ***SEVERE*** filesystem damage.\n\n"));
puts("\007\007\007");
cont = ask_yn(ctx, _("Do you really want to continue"), 0);
if (!cont) {
printf("%s", _("check aborted.\n"));
exit (0);
}
return;
}
static int is_on_batt(void)
{
FILE *f;
DIR *d;
char tmp[80], tmp2[80], fname[NAME_MAX+30];
unsigned int acflag;
struct dirent* de;
f = fopen("/sys/class/power_supply/AC/online", "r");
if (f) {
if (fscanf(f, "%u\n", &acflag) == 1) {
fclose(f);
return (!acflag);
}
fclose(f);
}
f = fopen("/proc/apm", "r");
if (f) {
if (fscanf(f, "%s %s %s %x", tmp, tmp, tmp, &acflag) != 4)
acflag = 1;
fclose(f);
return (acflag != 1);
}
d = opendir("/proc/acpi/ac_adapter");
if (d) {
while ((de=readdir(d)) != NULL) {
if (!strncmp(".", de->d_name, 1))
continue;
snprintf(fname, sizeof(fname),
"/proc/acpi/ac_adapter/%s/state",
de->d_name);
f = fopen(fname, "r");
if (!f)
continue;
if (fscanf(f, "%s %s", tmp2, tmp) != 2)
tmp[0] = 0;
fclose(f);
if (strncmp(tmp, "off-line", 8) == 0) {
closedir(d);
return 1;
}
}
closedir(d);
}
return 0;
}
/*
* This routine checks to see if a filesystem can be skipped; if so,
* it will exit with E2FSCK_OK. Under some conditions it will print a
* message explaining why a check is being forced.
*/
static void check_if_skip(e2fsck_t ctx)
{
ext2_filsys fs = ctx->fs;
struct problem_context pctx;
const char *reason = NULL;
unsigned int reason_arg = 0;
long next_check;
int batt = is_on_batt();
int defer_check_on_battery;
int broken_system_clock;
time_t lastcheck;
if (ctx->flags & E2F_FLAG_PROBLEMS_FIXED)
return;
profile_get_boolean(ctx->profile, "options", "broken_system_clock",
0, 0, &broken_system_clock);
if (ctx->flags & E2F_FLAG_TIME_INSANE)
broken_system_clock = 1;
profile_get_boolean(ctx->profile, "options",
"defer_check_on_battery", 0, 1,
&defer_check_on_battery);
if (!defer_check_on_battery)
batt = 0;
if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file || cflag)
return;
if (ctx->options & E2F_OPT_JOURNAL_ONLY)
goto skip;
lastcheck = fs->super->s_lastcheck;
if (lastcheck > ctx->now)
lastcheck -= ctx->time_fudge;
if ((fs->super->s_state & EXT2_ERROR_FS) ||
!ext2fs_test_valid(fs))
reason = _(" contains a file system with errors");
else if ((fs->super->s_state & EXT2_VALID_FS) == 0)
reason = _(" was not cleanly unmounted");
else if (check_backup_super_block(ctx))
reason = _(" primary superblock features different from backup");
else if ((fs->super->s_max_mnt_count > 0) &&
(fs->super->s_mnt_count >=
(unsigned) fs->super->s_max_mnt_count)) {
reason = _(" has been mounted %u times without being checked");
reason_arg = fs->super->s_mnt_count;
if (batt && (fs->super->s_mnt_count <
(unsigned) fs->super->s_max_mnt_count*2))
reason = 0;
} else if (!broken_system_clock && fs->super->s_checkinterval &&
(ctx->now < lastcheck)) {
reason = _(" has filesystem last checked time in the future");
if (batt)
reason = 0;
} else if (!broken_system_clock && fs->super->s_checkinterval &&
((ctx->now - lastcheck) >=
((time_t) fs->super->s_checkinterval))) {
reason = _(" has gone %u days without being checked");
reason_arg = (ctx->now - fs->super->s_lastcheck)/(3600*24);
if (batt && ((ctx->now - fs->super->s_lastcheck) <
fs->super->s_checkinterval*2))
reason = 0;
} else if (broken_system_clock && fs->super->s_checkinterval) {
log_out(ctx, "%s: ", ctx->device_name);
log_out(ctx, "%s",
_("ignoring check interval, broken_system_clock set\n"));
}
if (reason) {
log_out(ctx, "%s", ctx->device_name);
log_out(ctx, reason, reason_arg);
log_out(ctx, "%s", _(", check forced.\n"));
return;
}
/*
* Update the global counts from the block group counts. This
* is needed since modern kernels don't update the global
* counts so as to avoid locking the entire file system. So
* if the filesystem is not unmounted cleanly, the global
* counts may not be accurate. Update them here if we can,
* for the benefit of users who might examine the file system
* using dumpe2fs. (This is for cosmetic reasons only.)
*/
clear_problem_context(&pctx);
pctx.ino = fs->super->s_free_inodes_count;
pctx.ino2 = ctx->free_inodes;
if ((pctx.ino != pctx.ino2) &&
!(ctx->options & E2F_OPT_READONLY) &&
fix_problem(ctx, PR_0_FREE_INODE_COUNT, &pctx)) {
fs->super->s_free_inodes_count = ctx->free_inodes;
ext2fs_mark_super_dirty(fs);
}
clear_problem_context(&pctx);
pctx.blk = ext2fs_free_blocks_count(fs->super);
pctx.blk2 = ctx->free_blocks;
if ((pctx.blk != pctx.blk2) &&
!(ctx->options & E2F_OPT_READONLY) &&
fix_problem(ctx, PR_0_FREE_BLOCK_COUNT, &pctx)) {
ext2fs_free_blocks_count_set(fs->super, ctx->free_blocks);
ext2fs_mark_super_dirty(fs);
}
/* Print the summary message when we're skipping a full check */
log_out(ctx, _("%s: clean, %u/%u files, %llu/%llu blocks"),
ctx->device_name,
fs->super->s_inodes_count - fs->super->s_free_inodes_count,
fs->super->s_inodes_count,
(unsigned long long) ext2fs_blocks_count(fs->super) -
ext2fs_free_blocks_count(fs->super),
(unsigned long long) ext2fs_blocks_count(fs->super));
next_check = 100000;
if (fs->super->s_max_mnt_count > 0) {
next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count;
if (next_check <= 0)
next_check = 1;
}
if (!broken_system_clock && fs->super->s_checkinterval &&
((ctx->now - fs->super->s_lastcheck) >= fs->super->s_checkinterval))
next_check = 1;
if (next_check <= 5) {
if (next_check == 1) {
if (batt)
log_out(ctx, "%s",
_(" (check deferred; on battery)"));
else
log_out(ctx, "%s",
_(" (check after next mount)"));
} else
log_out(ctx, _(" (check in %ld mounts)"),
next_check);
}
log_out(ctx, "\n");
skip:
ext2fs_close_free(&ctx->fs);
e2fsck_free_context(ctx);
exit(FSCK_OK);
}
/*
* For completion notice
*/
struct percent_tbl {
int max_pass;
int table[32];
};
static struct percent_tbl e2fsck_tbl = {
5, { 0, 70, 90, 92, 95, 100 }
};
static char bar[128], spaces[128];
static float calc_percent(struct percent_tbl *tbl, int pass, int curr,
int max)
{
float percent;
if (pass <= 0)
return 0.0;
if (pass > tbl->max_pass || max == 0)
return 100.0;
percent = ((float) curr) / ((float) max);
return ((percent * (tbl->table[pass] - tbl->table[pass-1]))
+ tbl->table[pass-1]);
}
void e2fsck_clear_progbar(e2fsck_t ctx)
{
if (!(ctx->flags & E2F_FLAG_PROG_BAR))
return;
printf("%s%s\r%s", ctx->start_meta, spaces + (sizeof(spaces) - 80),
ctx->stop_meta);
fflush(stdout);
ctx->flags &= ~E2F_FLAG_PROG_BAR;
}
int e2fsck_simple_progress(e2fsck_t ctx, const char *label, float percent,
unsigned int dpynum)
{
static const char spinner[] = "\\|/-";
int i;
unsigned int tick;
struct timeval tv;
int dpywidth;
int fixed_percent;
if (ctx->flags & E2F_FLAG_PROG_SUPPRESS)
return 0;
/*
* Calculate the new progress position. If the
* percentage hasn't changed, then we skip out right
* away.
*/
fixed_percent = (int) ((10 * percent) + 0.5);
if (ctx->progress_last_percent == fixed_percent)
return 0;
ctx->progress_last_percent = fixed_percent;
/*
* If we've already updated the spinner once within
* the last 1/8th of a second, no point doing it
* again.
*/
gettimeofday(&tv, NULL);
tick = (tv.tv_sec << 3) + (tv.tv_usec / (1000000 / 8));
if ((tick == ctx->progress_last_time) &&
(fixed_percent != 0) && (fixed_percent != 1000))
return 0;
ctx->progress_last_time = tick;
/*
* Advance the spinner, and note that the progress bar
* will be on the screen
*/
ctx->progress_pos = (ctx->progress_pos+1) & 3;
ctx->flags |= E2F_FLAG_PROG_BAR;
dpywidth = 66 - strlen(label);
dpywidth = 8 * (dpywidth / 8);
if (dpynum)
dpywidth -= 8;
i = ((percent * dpywidth) + 50) / 100;
printf("%s%s: |%s%s", ctx->start_meta, label,
bar + (sizeof(bar) - (i+1)),
spaces + (sizeof(spaces) - (dpywidth - i + 1)));
if (fixed_percent == 1000)
fputc('|', stdout);
else
fputc(spinner[ctx->progress_pos & 3], stdout);
printf(" %4.1f%% ", percent);
if (dpynum)
printf("%u\r", dpynum);
else
fputs(" \r", stdout);
fputs(ctx->stop_meta, stdout);
if (fixed_percent == 1000)
e2fsck_clear_progbar(ctx);
fflush(stdout);
return 0;
}
static int e2fsck_update_progress(e2fsck_t ctx, int pass,
unsigned long cur, unsigned long max)
{
char buf[1024];
float percent;
if (pass == 0)
return 0;
if (ctx->progress_fd) {
snprintf(buf, sizeof(buf), "%d %lu %lu %s\n",
pass, cur, max, ctx->device_name);
write_all(ctx->progress_fd, buf, strlen(buf));
} else {
percent = calc_percent(&e2fsck_tbl, pass, cur, max);
e2fsck_simple_progress(ctx, ctx->device_name,
percent, 0);
}
return 0;
}
#define PATH_SET "PATH=/sbin"
/*
* Make sure 0,1,2 file descriptors are open, so that we don't open
* the filesystem using the same file descriptor as stdout or stderr.
*/
static void reserve_stdio_fds(void)
{
int fd = 0;
while (fd <= 2) {
fd = open("/dev/null", O_RDWR);
if (fd < 0) {
fprintf(stderr, _("ERROR: Couldn't open "
"/dev/null (%s)\n"),
strerror(errno));
return;
}
}
(void) close(fd);
}
#ifdef HAVE_SIGNAL_H
static void signal_progress_on(int sig EXT2FS_ATTR((unused)))
{
e2fsck_t ctx = e2fsck_global_ctx;
if (!ctx)
return;
ctx->progress = e2fsck_update_progress;
}
static void signal_progress_off(int sig EXT2FS_ATTR((unused)))
{
e2fsck_t ctx = e2fsck_global_ctx;
if (!ctx)
return;
e2fsck_clear_progbar(ctx);
ctx->progress = 0;
}
static void signal_cancel(int sig EXT2FS_ATTR((unused)))
{
e2fsck_t ctx = e2fsck_global_ctx;
if (!ctx)
exit(FSCK_CANCELED);
ctx->flags |= E2F_FLAG_CANCEL;
}
#endif
static void parse_extended_opts(e2fsck_t ctx, const char *opts)
{
char *buf, *token, *next, *p, *arg;
int ea_ver;
int extended_usage = 0;
unsigned long long reada_kb;
buf = string_copy(ctx, opts, 0);
for (token = buf; token && *token; token = next) {
p = strchr(token, ',');
next = 0;
if (p) {
*p = 0;
next = p+1;
}
arg = strchr(token, '=');
if (arg) {
*arg = 0;
arg++;
}
if (strcmp(token, "ea_ver") == 0) {
if (!arg) {
extended_usage++;
continue;
}
ea_ver = strtoul(arg, &p, 0);
if (*p ||
((ea_ver != 1) && (ea_ver != 2))) {
fprintf(stderr, "%s",
_("Invalid EA version.\n"));
extended_usage++;
continue;
}
ctx->ext_attr_ver = ea_ver;
} else if (strcmp(token, "readahead_kb") == 0) {
if (!arg) {
extended_usage++;
continue;
}
reada_kb = strtoull(arg, &p, 0);
if (*p) {
fprintf(stderr, "%s",
_("Invalid readahead buffer size.\n"));
extended_usage++;
continue;
}
ctx->readahead_kb = reada_kb;
} else if (strcmp(token, "fragcheck") == 0) {
ctx->options |= E2F_OPT_FRAGCHECK;
continue;
} else if (strcmp(token, "journal_only") == 0) {
if (arg) {
extended_usage++;
continue;
}
ctx->options |= E2F_OPT_JOURNAL_ONLY;
} else if (strcmp(token, "discard") == 0) {
ctx->options |= E2F_OPT_DISCARD;
continue;
} else if (strcmp(token, "nodiscard") == 0) {
ctx->options &= ~E2F_OPT_DISCARD;
continue;
} else if (strcmp(token, "optimize_extents") == 0) {
ctx->options &= ~E2F_OPT_NOOPT_EXTENTS;
continue;
} else if (strcmp(token, "no_optimize_extents") == 0) {
ctx->options |= E2F_OPT_NOOPT_EXTENTS;
continue;
} else if (strcmp(token, "inode_count_fullmap") == 0) {
ctx->options |= E2F_OPT_ICOUNT_FULLMAP;
continue;
} else if (strcmp(token, "no_inode_count_fullmap") == 0) {
ctx->options &= ~E2F_OPT_ICOUNT_FULLMAP;
continue;
} else if (strcmp(token, "log_filename") == 0) {
if (!arg)
extended_usage++;
else
ctx->log_fn = string_copy(ctx, arg, 0);
continue;
} else if (strcmp(token, "problem_log") == 0) {
if (!arg)
extended_usage++;
else
ctx->problem_log_fn = string_copy(ctx, arg, 0);
continue;
} else if (strcmp(token, "bmap2extent") == 0) {
ctx->options |= E2F_OPT_CONVERT_BMAP;
continue;
} else if (strcmp(token, "fixes_only") == 0) {
ctx->options |= E2F_OPT_FIXES_ONLY;
continue;
} else if (strcmp(token, "unshare_blocks") == 0) {
ctx->options |= E2F_OPT_UNSHARE_BLOCKS;
ctx->options |= E2F_OPT_FORCE;
continue;
} else if (strcmp(token, "check_encoding") == 0) {
ctx->options |= E2F_OPT_CHECK_ENCODING;
continue;
#ifdef CONFIG_DEVELOPER_FEATURES
} else if (strcmp(token, "clear_all_uninit_bits") == 0) {
ctx->options |= E2F_OPT_CLEAR_UNINIT;
continue;
#endif
} else {
fprintf(stderr, _("Unknown extended option: %s\n"),
token);
extended_usage++;
}
}
free(buf);
if (extended_usage) {
fputs(_("\nExtended options are separated by commas, "
"and may take an argument which\n"
"is set off by an equals ('=') sign. "
"Valid extended options are:\n\n"), stderr);
fputs(_("\tea_ver=<ea_version (1 or 2)>\n"), stderr);
fputs("\tfragcheck\n", stderr);
fputs("\tjournal_only\n", stderr);
fputs("\tdiscard\n", stderr);
fputs("\tnodiscard\n", stderr);
fputs("\toptimize_extents\n", stderr);
fputs("\tno_optimize_extents\n", stderr);
fputs("\tinode_count_fullmap\n", stderr);
fputs("\tno_inode_count_fullmap\n", stderr);
fputs(_("\treadahead_kb=<buffer size>\n"), stderr);
fputs("\tbmap2extent\n", stderr);
fputs("\tunshare_blocks\n", stderr);
fputs("\tfixes_only\n", stderr);
fputs("\tcheck_encoding\n", stderr);
fputc('\n', stderr);
exit(1);
}
}
static void syntax_err_report(const char *filename, long err, int line_num)
{
fprintf(stderr,
_("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"),
filename, line_num, error_message(err));
exit(FSCK_ERROR);
}
static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 };
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
unsigned long long phys_mem_kb, blk;
retval = e2fsck_allocate_context(&ctx);
if (retval)
return retval;
*ret_ctx = ctx;
e2fsck_global_ctx = ctx;
setvbuf(stdout, NULL, _IONBF, BUFSIZ);
setvbuf(stderr, NULL, _IONBF, BUFSIZ);
if (getenv("E2FSCK_FORCE_INTERACTIVE") || (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";
phys_mem_kb = get_memory_size() / 1024;
ctx->readahead_kb = ~0ULL;
while ((c = getopt(argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDkz:")) != 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, "%llu", &blk);
ctx->use_superblock = blk;
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++;
/* fall through */
case 'l':
if (bad_blocks_file)
free(bad_blocks_file);
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;
case 'z':
ctx->undo_file = optarg;
break;
default:
usage(ctx);
}
if (show_version_only)
return 0;
if (optind != argc - 1)
usage(ctx);
if ((ctx->options & E2F_OPT_NO) &&