/*
* fsck.c - a file system consistency checker for Linux.
*
- * (C) 1991, 1992 Linus Torvalds. This file may be redistributed
- * as per the GNU copyleft.
+ * (C) 1991, 1992 Linus Torvalds.
+ *
+ * Licensed under GPLv2, see file LICENSE in this tarball for details.
*/
/*
* enforced (but it's not much fun on a character device :-).
*/
-#include <stdio.h>
-#include <errno.h>
-#include <unistd.h>
-#include <string.h>
-#include <fcntl.h>
-#include <ctype.h>
-#include <stdlib.h>
-#include <termios.h>
-#include <mntent.h>
-#include <sys/param.h>
#include "busybox.h"
-
-#define BLOCK_SIZE_BITS 10
-#define BLOCK_SIZE (1<<BLOCK_SIZE_BITS)
+#include <mntent.h>
/*
* This is the original minix inode layout on disk.
static int errors_uncorrected; /* flag if some error was not corrected */
static int dirsize = 16;
static int namelen = 14;
-static int version2;
static struct termios termios;
static int termios_set;
+static char *inode_buffer;
#define Inode (((struct minix_inode *) inode_buffer)-1)
#define Inode2 (((struct minix2_inode *) inode_buffer)-1)
static char super_block_buffer[BLOCK_SIZE];
#define Super (*(struct minix_super_block *)super_block_buffer)
#define INODES ((unsigned long)Super.s_ninodes)
#ifdef CONFIG_FEATURE_MINIX2
+static int version2;
#define ZONES ((unsigned long)(version2 ? Super.s_zones : Super.s_nzones))
#else
#define ZONES ((unsigned long)(Super.s_nzones))
static void recursive_check2(unsigned int ino);
#endif
-static inline int bit(char * a,unsigned int i)
+static int bit(char *a, unsigned int i)
{
return (a[i >> 3] & (1<<(i & 7))) != 0;
}
/* Wed Feb 9 15:17:06 MST 2000 */
/* dynamically allocate name_list (instead of making it static) */
-static inline void alloc_current_name(void)
+static void alloc_current_name(void)
{
current_name = xmalloc(MAX_DEPTH * (BUFSIZ + 1));
current_name[0] = '/';
#ifdef CONFIG_FEATURE_CLEAN_UP
/* execute this atexit() to deallocate name_list[] */
/* piptigger was here */
-static inline void free_current_name(void)
+static void free_current_name(void)
{
free(current_name);
}
else
close(fd);
- printf("%s is mounted. ", device_name);
+ printf("%s is mounted. ", device_name);
cont = 0;
if (isatty(0) && isatty(1))
cont = ask("Do you really want to continue", 0);
msg = ">= ZONES";
else
return *nr;
- printf("Zone nr %s in file '%s'.", msg, current_name);
+ printf("Zone nr %s in file '%s'. ", msg, current_name);
if (ask("Remove block", 1)) {
*nr = 0;
*corrected = 1;
return;
}
if (BLOCK_SIZE * nr != lseek(IN, BLOCK_SIZE * nr, SEEK_SET)) {
- printf("Read error: unable to seek to block in file '%s'\n",
- current_name);
+ printf("%s: unable to seek to block in file '%s'\n",
+ bb_msg_read_error, current_name);
errors_uncorrected = 1;
memset(addr, 0, BLOCK_SIZE);
} else if (BLOCK_SIZE != read(IN, addr, BLOCK_SIZE)) {
- printf("Read error: bad block in file '%s'\n", current_name);
+ printf("%s: bad block in file '%s'\n",
+ bb_msg_read_error, current_name);
errors_uncorrected = 1;
memset(addr, 0, BLOCK_SIZE);
}
return;
}
if (BLOCK_SIZE * nr != lseek(IN, BLOCK_SIZE * nr, SEEK_SET))
- die("seek failed in write_block");
+ die("Seek failed in write_block");
if (BLOCK_SIZE != write(IN, addr, BLOCK_SIZE)) {
- printf("Write error: bad block in file '%s'\n", current_name);
+ printf("%s: bad block in file '%s'\n",
+ bb_msg_write_error, current_name);
errors_uncorrected = 1;
}
}
Super.s_state &= ~MINIX_ERROR_FS;
if (BLOCK_SIZE != lseek(IN, BLOCK_SIZE, SEEK_SET))
- die("seek failed in write_super_block");
+ die("Seek failed in write_super_block");
if (BLOCK_SIZE != write(IN, super_block_buffer, BLOCK_SIZE))
- die("unable to write super-block");
+ die("Unable to write super-block");
}
static void write_tables(void)
static void read_superblock(void)
{
if (BLOCK_SIZE != lseek(IN, BLOCK_SIZE, SEEK_SET))
- die("seek failed");
+ die("Seek failed");
if (BLOCK_SIZE != read(IN, super_block_buffer, BLOCK_SIZE))
- die("unable to read super block");
+ die("Unable to read super block");
/* already initialized to:
namelen = 14;
dirsize = 16;
version2 = 1;
#endif
} else
- die("bad magic number in super-block");
+ die("Bad magic number in super-block");
if (ZONESIZE != 0 || BLOCK_SIZE != 1024)
die("Only 1k blocks/zones supported");
if (IMAPS * BLOCK_SIZE * 8 < INODES + 1)
- die("bad s_imap_blocks field in super-block");
+ die("Bad s_imap_blocks field in super-block");
if (ZMAPS * BLOCK_SIZE * 8 < ZONES - FIRSTZONE + 1)
- die("bad s_zmap_blocks field in super-block");
+ die("Bad s_zmap_blocks field in super-block");
}
static void read_tables(void)
{
- inode_map = xmalloc(IMAPS * BLOCK_SIZE);
- zone_map = xmalloc(ZMAPS * BLOCK_SIZE);
- memset(inode_map, 0, IMAPS * BLOCK_SIZE);
- memset(zone_map, 0, ZMAPS * BLOCK_SIZE);
+ inode_map = xzalloc(IMAPS * BLOCK_SIZE);
+ zone_map = xzalloc(ZMAPS * BLOCK_SIZE);
inode_buffer = xmalloc(INODE_BUFFER_SIZE);
inode_count = xmalloc(INODES + 1);
zone_count = xmalloc(ZONES);
if (INODE_BUFFER_SIZE != read(IN, inode_buffer, INODE_BUFFER_SIZE))
die("Unable to read inodes");
if (NORM_FIRSTZONE != FIRSTZONE) {
- printf("Warning: Firstzone != Norm_firstzone\n");
+ printf("Warning: Firstzone!=Norm_firstzone\n");
errors_uncorrected = 1;
}
get_dirsize();
inode = Inode + nr;
if (!inode_count[nr]) {
if (!inode_in_use(nr)) {
- printf("Inode %d marked not used, but used for file "
- "'%s'\n", nr, current_name);
+ printf("Inode %d is marked as 'unused', but it is used "
+ "for file '%s'\n", nr, current_name);
if (repair) {
- if (ask("Mark in use", 1))
+ if (ask("Mark as 'in use'", 1))
mark_inode(nr);
} else {
errors_uncorrected = 1;
inode = Inode2 + nr;
if (!inode_count[nr]) {
if (!inode_in_use(nr)) {
- printf("Inode %d marked not used, but used for file "
- "'%s'\n", nr, current_name);
+ printf("Inode %d is marked as 'unused', but it is used "
+ "for file '%s'\n", nr, current_name);
if (repair) {
- if (ask("Mark in use", 1))
+ if (ask("Mark as 'in use'", 1))
mark_inode(nr);
else
errors_uncorrected = 1;
struct minix_inode *inode = Inode + ROOT_INO;
if (!inode || !S_ISDIR(inode->i_mode))
- die("root inode isn't a directory");
+ die("Root inode isn't a directory");
}
#ifdef CONFIG_FEATURE_MINIX2
struct minix2_inode *inode = Inode2 + ROOT_INO;
if (!inode || !S_ISDIR(inode->i_mode))
- die("root inode isn't a directory");
+ die("Root inode isn't a directory");
}
#endif
if (!block)
return 0;
if (zone_count[block]) {
- printf("Block has been used before. Now in file '%s'.",
+ printf("Already used block is reused in file '%s'. ",
current_name);
if (ask("Clear", 1)) {
*znr = 0;
}
}
if (!zone_in_use(block)) {
- printf("Block %d in file '%s' is marked not in use.",
+ printf("Block %d in file '%s' is marked as 'unused'. ",
block, current_name);
if (ask("Correct", 1))
mark_zone(block);
if (!block)
return 0;
if (zone_count[block]) {
- printf("Block has been used before. Now in file '%s'.",
+ printf("Already used block is reused in file '%s'. ",
current_name);
if (ask("Clear", 1)) {
*znr = 0;
}
}
if (!zone_in_use(block)) {
- printf("Block %d in file '%s' is marked not in use.",
+ printf("Block %d in file '%s' is marked as 'unused'. ",
block, current_name);
if (ask("Correct", 1))
mark_zone(block);
name = blk + (offset % BLOCK_SIZE) + 2;
ino = *(uint16_t *) (name - 2);
if (ino > INODES) {
- printf("%s contains a bad inode number for file '%.*s'.",
+ printf("%s contains a bad inode number for file '%.*s'. ",
current_name, namelen, name);
- if (ask(" Remove", 1)) {
+ if (ask("Remove", 1)) {
*(uint16_t *) (name - 2) = 0;
write_block(block, blk);
}
name = blk + (offset % BLOCK_SIZE) + 2;
ino = *(uint16_t *) (name - 2);
if (ino > INODES) {
- printf("%s contains a bad inode number for file '%.*s'.",
+ printf("%s contains a bad inode number for file '%.*s'. ",
current_name, namelen, name);
- if (ask(" Remove", 1)) {
+ if (ask("Remove", 1)) {
*(uint16_t *) (name - 2) = 0;
write_block(block, blk);
}
dir = Inode + ino;
if (!S_ISDIR(dir->i_mode))
- die("internal error");
+ die("Internal error");
if (dir->i_size < 2 * dirsize) {
printf("%s: bad directory: size<32", current_name);
errors_uncorrected = 1;
dir = Inode2 + ino;
if (!S_ISDIR(dir->i_mode))
- die("internal error");
+ die("Internal error");
if (dir->i_size < 2 * dirsize) {
printf("%s: bad directory: size<32", current_name);
errors_uncorrected = 1;
char buffer[1024];
if (BLOCK_SIZE * i != lseek(IN, BLOCK_SIZE * i, SEEK_SET))
- die("seek failed in bad_zone");
+ die("Seek failed in bad_zone");
return (BLOCK_SIZE != read(IN, buffer, BLOCK_SIZE));
}
for (i = 1; i <= INODES; i++) {
if (warn_mode && Inode[i].i_mode && !inode_in_use(i)) {
- printf("Inode %d mode not cleared.", i);
+ printf("Inode %d has non-zero mode. ", i);
if (ask("Clear", 1)) {
Inode[i].i_mode = 0;
changed = 1;
if (!inode_count[i]) {
if (!inode_in_use(i))
continue;
- printf("Inode %d not used, marked used in the bitmap.", i);
+ printf("Unused inode %d is marked as 'used' in the bitmap. ", i);
if (ask("Clear", 1))
unmark_inode(i);
continue;
}
if (!inode_in_use(i)) {
- printf("Inode %d used, marked unused in the bitmap.", i);
+ printf("Inode %d is used, but marked as 'unused' in the bitmap. ", i);
if (ask("Set", 1))
mark_inode(i);
}
if (Inode[i].i_nlinks != inode_count[i]) {
- printf("Inode %d (mode = %07o), i_nlinks=%d, counted=%d.",
+ printf("Inode %d (mode=%07o), i_nlinks=%d, counted=%d. ",
i, Inode[i].i_mode, Inode[i].i_nlinks, inode_count[i]);
if (ask("Set i_nlinks to count", 1)) {
Inode[i].i_nlinks = inode_count[i];
if (!zone_count[i]) {
if (bad_zone(i))
continue;
- printf("Zone %d: marked in use, no file uses it.", i);
+ printf("Zone %d is marked 'in use', but no file uses it. ", i);
if (ask("Unmark", 1))
unmark_zone(i);
continue;
for (i = 1; i <= INODES; i++) {
if (warn_mode && Inode2[i].i_mode && !inode_in_use(i)) {
- printf("Inode %d mode not cleared.", i);
+ printf("Inode %d has non-zero mode. ", i);
if (ask("Clear", 1)) {
Inode2[i].i_mode = 0;
changed = 1;
if (!inode_count[i]) {
if (!inode_in_use(i))
continue;
- printf("Inode %d not used, marked used in the bitmap.", i);
+ printf("Unused inode %d is marked as 'used' in the bitmap. ", i);
if (ask("Clear", 1))
unmark_inode(i);
continue;
}
if (!inode_in_use(i)) {
- printf("Inode %d used, marked unused in the bitmap.", i);
+ printf("Inode %d is used, but marked as 'unused' in the bitmap. ", i);
if (ask("Set", 1))
mark_inode(i);
}
if (Inode2[i].i_nlinks != inode_count[i]) {
- printf("Inode %d (mode = %07o), i_nlinks=%d, counted=%d.",
+ printf("Inode %d (mode=%07o), i_nlinks=%d, counted=%d. ",
i, Inode2[i].i_mode, Inode2[i].i_nlinks,
inode_count[i]);
if (ask("Set i_nlinks to count", 1)) {
if (!zone_count[i]) {
if (bad_zone(i))
continue;
- printf("Zone %d: marked in use, no file uses it.", i);
+ printf("Zone %d is marked 'in use', but no file uses it. ", i);
if (ask("Unmark", 1))
unmark_zone(i);
continue;
#endif
if (INODE_SIZE * MINIX_INODES_PER_BLOCK != BLOCK_SIZE)
- die("bad inode size");
+ die("Bad inode size");
#ifdef CONFIG_FEATURE_MINIX2
if (INODE_SIZE2 * MINIX2_INODES_PER_BLOCK != BLOCK_SIZE)
- die("bad v2 inode size");
+ die("Bad v2 inode size");
#endif
while (argc-- > 1) {
argv++;
check_mount(); /* trying to check a mounted filesystem? */
if (repair && !automatic) {
if (!isatty(0) || !isatty(1))
- die("need terminal for interactive repairs");
+ die("Need terminal for interactive repairs");
}
IN = open(device_name, repair ? O_RDWR : O_RDONLY);
if (IN < 0){
- fprintf(stderr,"unable to open device '%s'\n",device_name);
+ printf("Unable to open device '%s'\n", device_name);
leave(8);
}
sync(); /* paranoia? */
if (!(Super.s_state & MINIX_ERROR_FS) &&
(Super.s_state & MINIX_VALID_FS) && !force) {
if (repair)
- printf("%s is clean, no check\n", device_name);
+ printf("%s is clean, check is skipped\n", device_name);
return retcode;
} else if (force)
printf("Forcing filesystem check on %s\n", device_name);
for (i = FIRSTZONE, free_cnt = 0; i < ZONES; i++)
if (!zone_in_use(i))
free_cnt++;
- printf("%6ld zones used (%ld%%)\n", (ZONES - free_cnt),
- 100 * (ZONES - free_cnt) / ZONES);
- printf("\n%6d regular files\n"
+ printf("%6ld zones used (%ld%%)\n\n"
+ "%6d regular files\n"
"%6d directories\n"
"%6d character device files\n"
"%6d block device files\n"
"%6d symbolic links\n"
"------\n"
"%6d files\n",
+ (ZONES - free_cnt), 100 * (ZONES - free_cnt) / ZONES,
regular, directory, chardev, blockdev,
links - 2 * directory + 1, symlinks,
total - 2 * directory + 1);
}
if (changed) {
write_tables();
- printf("----------------------------\n"
- "FILE SYSTEM HAS BEEN CHANGED\n"
- "----------------------------\n");
+ printf("FILE SYSTEM HAS BEEN CHANGED\n");
sync();
} else if (repair)
write_super_block();
projects / oweals / busybox.git / blobdiff