| /* vi: set sw=4 ts=4: */ |
| /* |
| * fsck.c - a file system consistency checker for Linux. |
| * |
| * (C) 1991, 1992 Linus Torvalds. This file may be redistributed |
| * as per the GNU copyleft. |
| */ |
| |
| /* |
| * 09.11.91 - made the first rudimetary functions |
| * |
| * 10.11.91 - updated, does checking, no repairs yet. |
| * Sent out to the mailing-list for testing. |
| * |
| * 14.11.91 - Testing seems to have gone well. Added some |
| * correction-code, and changed some functions. |
| * |
| * 15.11.91 - More correction code. Hopefully it notices most |
| * cases now, and tries to do something about them. |
| * |
| * 16.11.91 - More corrections (thanks to Mika Jalava). Most |
| * things seem to work now. Yeah, sure. |
| * |
| * |
| * 19.04.92 - Had to start over again from this old version, as a |
| * kernel bug ate my enhanced fsck in february. |
| * |
| * 28.02.93 - added support for different directory entry sizes.. |
| * |
| * Sat Mar 6 18:59:42 1993, faith@cs.unc.edu: Output namelen with |
| * super-block information |
| * |
| * Sat Oct 9 11:17:11 1993, faith@cs.unc.edu: make exit status conform |
| * to that required by fsutil |
| * |
| * Mon Jan 3 11:06:52 1994 - Dr. Wettstein (greg%wind.uucp@plains.nodak.edu) |
| * Added support for file system valid flag. Also |
| * added program_version variable and output of |
| * program name and version number when program |
| * is executed. |
| * |
| * 30.10.94 - added support for v2 filesystem |
| * (Andreas Schwab, schwab@issan.informatik.uni-dortmund.de) |
| * |
| * 10.12.94 - added test to prevent checking of mounted fs adapted |
| * from Theodore Ts'o's (tytso@athena.mit.edu) e2fsck |
| * program. (Daniel Quinlan, quinlan@yggdrasil.com) |
| * |
| * 01.07.96 - Fixed the v2 fs stuff to use the right #defines and such |
| * for modern libcs (janl@math.uio.no, Nicolai Langfeldt) |
| * |
| * 02.07.96 - Added C bit fiddling routines from rmk@ecs.soton.ac.uk |
| * (Russell King). He made them for ARM. It would seem |
| * that the ARM is powerful enough to do this in C whereas |
| * i386 and m64k must use assembly to get it fast >:-) |
| * This should make minix fsck systemindependent. |
| * (janl@math.uio.no, Nicolai Langfeldt) |
| * |
| * 04.11.96 - Added minor fixes from Andreas Schwab to avoid compiler |
| * warnings. Added mc68k bitops from |
| * Joerg Dorchain <dorchain@mpi-sb.mpg.de>. |
| * |
| * 06.11.96 - Added v2 code submitted by Joerg Dorchain, but written by |
| * Andreas Schwab. |
| * |
| * 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@misiek.eu.org> |
| * - added Native Language Support |
| * |
| * |
| * I've had no time to add comments - hopefully the function names |
| * are comments enough. As with all file system checkers, this assumes |
| * the file system is quiescent - don't use it on a mounted device |
| * unless you can be sure nobody is writing to it (and remember that the |
| * kernel can write to it when it searches for files). |
| * |
| * Usuage: fsck [-larvsm] device |
| * -l for a listing of all the filenames |
| * -a for automatic repairs (not implemented) |
| * -r for repairs (interactive) (not implemented) |
| * -v for verbose (tells how many files) |
| * -s for super-block info |
| * -m for minix-like "mode not cleared" warnings |
| * -f force filesystem check even if filesystem marked as valid |
| * |
| * The device may be a block device or a image of one, but this isn't |
| * enforced (but it's not much fun on a character device :-). |
| */ |
| |
| #include "busybox.h" |
| #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> |
| |
| |
| typedef unsigned char u8; |
| typedef unsigned short u16; |
| typedef unsigned int u32; |
| |
| |
| static const int MINIX_ROOT_INO = 1; |
| static const int MINIX_LINK_MAX = 250; |
| static const int MINIX2_LINK_MAX = 65530; |
| |
| static const int MINIX_I_MAP_SLOTS = 8; |
| static const int MINIX_Z_MAP_SLOTS = 64; |
| static const int MINIX_SUPER_MAGIC = 0x137F; /* original minix fs */ |
| static const int MINIX_SUPER_MAGIC2 = 0x138F; /* minix fs, 30 char names */ |
| static const int MINIX2_SUPER_MAGIC = 0x2468; /* minix V2 fs */ |
| static const int MINIX2_SUPER_MAGIC2 = 0x2478; /* minix V2 fs, 30 char names */ |
| static const int MINIX_VALID_FS = 0x0001; /* Clean fs. */ |
| static const int MINIX_ERROR_FS = 0x0002; /* fs has errors. */ |
| |
| #define MINIX_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix_inode))) |
| #define MINIX2_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix2_inode))) |
| |
| static const int MINIX_V1 = 0x0001; /* original minix fs */ |
| static const int MINIX_V2 = 0x0002; /* minix V2 fs */ |
| |
| #define INODE_VERSION(inode) inode->i_sb->u.minix_sb.s_version |
| |
| /* |
| * This is the original minix inode layout on disk. |
| * Note the 8-bit gid and atime and ctime. |
| */ |
| struct minix_inode { |
| u16 i_mode; |
| u16 i_uid; |
| u32 i_size; |
| u32 i_time; |
| u8 i_gid; |
| u8 i_nlinks; |
| u16 i_zone[9]; |
| }; |
| |
| /* |
| * The new minix inode has all the time entries, as well as |
| * long block numbers and a third indirect block (7+1+1+1 |
| * instead of 7+1+1). Also, some previously 8-bit values are |
| * now 16-bit. The inode is now 64 bytes instead of 32. |
| */ |
| struct minix2_inode { |
| u16 i_mode; |
| u16 i_nlinks; |
| u16 i_uid; |
| u16 i_gid; |
| u32 i_size; |
| u32 i_atime; |
| u32 i_mtime; |
| u32 i_ctime; |
| u32 i_zone[10]; |
| }; |
| |
| /* |
| * minix super-block data on disk |
| */ |
| struct minix_super_block { |
| u16 s_ninodes; |
| u16 s_nzones; |
| u16 s_imap_blocks; |
| u16 s_zmap_blocks; |
| u16 s_firstdatazone; |
| u16 s_log_zone_size; |
| u32 s_max_size; |
| u16 s_magic; |
| u16 s_state; |
| u32 s_zones; |
| }; |
| |
| struct minix_dir_entry { |
| u16 inode; |
| char name[0]; |
| }; |
| |
| #define BLOCK_SIZE_BITS 10 |
| #define BLOCK_SIZE (1<<BLOCK_SIZE_BITS) |
| |
| #define NAME_MAX 255 /* # chars in a file name */ |
| |
| #define MINIX_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix_inode))) |
| |
| #ifndef BLKGETSIZE |
| #define BLKGETSIZE _IO(0x12,96) /* return device size */ |
| #endif |
| |
| #ifndef __linux__ |
| #define volatile |
| #endif |
| |
| static const int ROOT_INO = 1; |
| |
| #define UPPER(size,n) ((size+((n)-1))/(n)) |
| #define INODE_SIZE (sizeof(struct minix_inode)) |
| #ifdef BB_FEATURE_MINIX2 |
| #define INODE_SIZE2 (sizeof(struct minix2_inode)) |
| #define INODE_BLOCKS UPPER(INODES, (version2 ? MINIX2_INODES_PER_BLOCK \ |
| : MINIX_INODES_PER_BLOCK)) |
| #else |
| #define INODE_BLOCKS UPPER(INODES, (MINIX_INODES_PER_BLOCK)) |
| #endif |
| #define INODE_BUFFER_SIZE (INODE_BLOCKS * BLOCK_SIZE) |
| |
| #define BITS_PER_BLOCK (BLOCK_SIZE<<3) |
| |
| static char *program_version = "1.2 - 11/11/96"; |
| static char *device_name = NULL; |
| static int IN; |
| static int repair = 0, automatic = 0, verbose = 0, list = 0, show = |
| 0, warn_mode = 0, force = 0; |
| static int directory = 0, regular = 0, blockdev = 0, chardev = 0, links = |
| 0, symlinks = 0, total = 0; |
| |
| static int changed = 0; /* flags if the filesystem has been changed */ |
| static int errors_uncorrected = 0; /* flag if some error was not corrected */ |
| static int dirsize = 16; |
| static int namelen = 14; |
| static int version2 = 0; |
| static struct termios termios; |
| static int termios_set = 0; |
| |
| /* File-name data */ |
| static const int MAX_DEPTH = 32; |
| static int name_depth = 0; |
| // static char name_list[MAX_DEPTH][BUFSIZ + 1]; |
| static char **name_list = NULL; |
| |
| static char *inode_buffer = NULL; |
| |
| #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 BB_FEATURE_MINIX2 |
| #define ZONES ((unsigned long)(version2 ? Super.s_zones : Super.s_nzones)) |
| #else |
| #define ZONES ((unsigned long)(Super.s_nzones)) |
| #endif |
| #define IMAPS ((unsigned long)Super.s_imap_blocks) |
| #define ZMAPS ((unsigned long)Super.s_zmap_blocks) |
| #define FIRSTZONE ((unsigned long)Super.s_firstdatazone) |
| #define ZONESIZE ((unsigned long)Super.s_log_zone_size) |
| #define MAXSIZE ((unsigned long)Super.s_max_size) |
| #define MAGIC (Super.s_magic) |
| #define NORM_FIRSTZONE (2+IMAPS+ZMAPS+INODE_BLOCKS) |
| |
| static char *inode_map; |
| static char *zone_map; |
| |
| static unsigned char *inode_count = NULL; |
| static unsigned char *zone_count = NULL; |
| |
| static void recursive_check(unsigned int ino); |
| #ifdef BB_FEATURE_MINIX2 |
| static void recursive_check2(unsigned int ino); |
| #endif |
| |
| static inline int bit(char * a,unsigned int i) |
| { |
| return (a[i >> 3] & (1<<(i & 7))) != 0; |
| } |
| #define inode_in_use(x) (bit(inode_map,(x))) |
| #define zone_in_use(x) (bit(zone_map,(x)-FIRSTZONE+1)) |
| |
| #define mark_inode(x) (setbit(inode_map,(x)),changed=1) |
| #define unmark_inode(x) (clrbit(inode_map,(x)),changed=1) |
| |
| #define mark_zone(x) (setbit(zone_map,(x)-FIRSTZONE+1),changed=1) |
| #define unmark_zone(x) (clrbit(zone_map,(x)-FIRSTZONE+1),changed=1) |
| |
| static void leave(int) __attribute__ ((noreturn)); |
| static void leave(int status) |
| { |
| if (termios_set) |
| tcsetattr(0, TCSANOW, &termios); |
| exit(status); |
| } |
| |
| static void show_usage(void) |
| { |
| usage(fsck_minix_usage); |
| } |
| |
| static void die(const char *str) |
| { |
| error_msg("%s", str); |
| leave(8); |
| } |
| |
| /* |
| * This simply goes through the file-name data and prints out the |
| * current file. |
| */ |
| static void print_current_name(void) |
| { |
| int i = 0; |
| |
| while (i < name_depth) |
| printf("/%.*s", namelen, name_list[i++]); |
| if (i == 0) |
| printf("/"); |
| } |
| |
| static int ask(const char *string, int def) |
| { |
| int c; |
| |
| if (!repair) { |
| printf("\n"); |
| errors_uncorrected = 1; |
| return 0; |
| } |
| if (automatic) { |
| printf("\n"); |
| if (!def) |
| errors_uncorrected = 1; |
| return def; |
| } |
| printf(def ? "%s (y/n)? " : "%s (n/y)? ", string); |
| for (;;) { |
| fflush(stdout); |
| if ((c = getchar()) == EOF) { |
| if (!def) |
| errors_uncorrected = 1; |
| return def; |
| } |
| c = toupper(c); |
| if (c == 'Y') { |
| def = 1; |
| break; |
| } else if (c == 'N') { |
| def = 0; |
| break; |
| } else if (c == ' ' || c == '\n') |
| break; |
| } |
| if (def) |
| printf("y\n"); |
| else { |
| printf("n\n"); |
| errors_uncorrected = 1; |
| } |
| return def; |
| } |
| |
| /* |
| * Make certain that we aren't checking a filesystem that is on a |
| * mounted partition. Code adapted from e2fsck, Copyright (C) 1993, |
| * 1994 Theodore Ts'o. Also licensed under GPL. |
| */ |
| static void check_mount(void) |
| { |
| FILE *f; |
| struct mntent *mnt; |
| int cont; |
| int fd; |
| |
| if ((f = setmntent(MOUNTED, "r")) == NULL) |
| return; |
| while ((mnt = getmntent(f)) != NULL) |
| if (strcmp(device_name, mnt->mnt_fsname) == 0) |
| break; |
| endmntent(f); |
| if (!mnt) |
| return; |
| |
| /* |
| * If the root is mounted read-only, then /etc/mtab is |
| * probably not correct; so we won't issue a warning based on |
| * it. |
| */ |
| fd = open(MOUNTED, O_RDWR); |
| if (fd < 0 && errno == EROFS) |
| return; |
| else |
| close(fd); |
| |
| printf("%s is mounted. ", device_name); |
| if (isatty(0) && isatty(1)) |
| cont = ask("Do you really want to continue", 0); |
| else |
| cont = 0; |
| if (!cont) { |
| printf("check aborted.\n"); |
| exit(0); |
| } |
| return; |
| } |
| |
| /* |
| * check_zone_nr checks to see that *nr is a valid zone nr. If it |
| * isn't, it will possibly be repaired. Check_zone_nr sets *corrected |
| * if an error was corrected, and returns the zone (0 for no zone |
| * or a bad zone-number). |
| */ |
| static int check_zone_nr(unsigned short *nr, int *corrected) |
| { |
| if (!*nr) |
| return 0; |
| if (*nr < FIRSTZONE) |
| printf("Zone nr < FIRSTZONE in file `"); |
| else if (*nr >= ZONES) |
| printf("Zone nr >= ZONES in file `"); |
| else |
| return *nr; |
| print_current_name(); |
| printf("'."); |
| if (ask("Remove block", 1)) { |
| *nr = 0; |
| *corrected = 1; |
| } |
| return 0; |
| } |
| |
| #ifdef BB_FEATURE_MINIX2 |
| static int check_zone_nr2(unsigned int *nr, int *corrected) |
| { |
| if (!*nr) |
| return 0; |
| if (*nr < FIRSTZONE) |
| printf("Zone nr < FIRSTZONE in file `"); |
| else if (*nr >= ZONES) |
| printf("Zone nr >= ZONES in file `"); |
| else |
| return *nr; |
| print_current_name(); |
| printf("'."); |
| if (ask("Remove block", 1)) { |
| *nr = 0; |
| *corrected = 1; |
| } |
| return 0; |
| } |
| #endif |
| |
| /* |
| * read-block reads block nr into the buffer at addr. |
| */ |
| static void read_block(unsigned int nr, char *addr) |
| { |
| if (!nr) { |
| memset(addr, 0, BLOCK_SIZE); |
| return; |
| } |
| if (BLOCK_SIZE * nr != lseek(IN, BLOCK_SIZE * nr, SEEK_SET)) { |
| printf("Read error: unable to seek to block in file '"); |
| print_current_name(); |
| printf("'\n"); |
| memset(addr, 0, BLOCK_SIZE); |
| errors_uncorrected = 1; |
| } else if (BLOCK_SIZE != read(IN, addr, BLOCK_SIZE)) { |
| printf("Read error: bad block in file '"); |
| print_current_name(); |
| printf("'\n"); |
| memset(addr, 0, BLOCK_SIZE); |
| errors_uncorrected = 1; |
| } |
| } |
| |
| /* |
| * write_block writes block nr to disk. |
| */ |
| static void write_block(unsigned int nr, char *addr) |
| { |
| if (!nr) |
| return; |
| if (nr < FIRSTZONE || nr >= ZONES) { |
| printf("Internal error: trying to write bad block\n" |
| "Write request ignored\n"); |
| errors_uncorrected = 1; |
| return; |
| } |
| if (BLOCK_SIZE * nr != lseek(IN, BLOCK_SIZE * nr, SEEK_SET)) |
| die("seek failed in write_block"); |
| if (BLOCK_SIZE != write(IN, addr, BLOCK_SIZE)) { |
| printf("Write error: bad block in file '"); |
| print_current_name(); |
| printf("'\n"); |
| errors_uncorrected = 1; |
| } |
| } |
| |
| /* |
| * map-block calculates the absolute block nr of a block in a file. |
| * It sets 'changed' if the inode has needed changing, and re-writes |
| * any indirect blocks with errors. |
| */ |
| static int map_block(struct minix_inode *inode, unsigned int blknr) |
| { |
| unsigned short ind[BLOCK_SIZE >> 1]; |
| unsigned short dind[BLOCK_SIZE >> 1]; |
| int blk_chg, block, result; |
| |
| if (blknr < 7) |
| return check_zone_nr(inode->i_zone + blknr, &changed); |
| blknr -= 7; |
| if (blknr < 512) { |
| block = check_zone_nr(inode->i_zone + 7, &changed); |
| read_block(block, (char *) ind); |
| blk_chg = 0; |
| result = check_zone_nr(blknr + ind, &blk_chg); |
| if (blk_chg) |
| write_block(block, (char *) ind); |
| return result; |
| } |
| blknr -= 512; |
| block = check_zone_nr(inode->i_zone + 8, &changed); |
| read_block(block, (char *) dind); |
| blk_chg = 0; |
| result = check_zone_nr(dind + (blknr / 512), &blk_chg); |
| if (blk_chg) |
| write_block(block, (char *) dind); |
| block = result; |
| read_block(block, (char *) ind); |
| blk_chg = 0; |
| result = check_zone_nr(ind + (blknr % 512), &blk_chg); |
| if (blk_chg) |
| write_block(block, (char *) ind); |
| return result; |
| } |
| |
| #ifdef BB_FEATURE_MINIX2 |
| static int map_block2(struct minix2_inode *inode, unsigned int blknr) |
| { |
| unsigned int ind[BLOCK_SIZE >> 2]; |
| unsigned int dind[BLOCK_SIZE >> 2]; |
| unsigned int tind[BLOCK_SIZE >> 2]; |
| int blk_chg, block, result; |
| |
| if (blknr < 7) |
| return check_zone_nr2(inode->i_zone + blknr, &changed); |
| blknr -= 7; |
| if (blknr < 256) { |
| block = check_zone_nr2(inode->i_zone + 7, &changed); |
| read_block(block, (char *) ind); |
| blk_chg = 0; |
| result = check_zone_nr2(blknr + ind, &blk_chg); |
| if (blk_chg) |
| write_block(block, (char *) ind); |
| return result; |
| } |
| blknr -= 256; |
| if (blknr >= 256 * 256) { |
| block = check_zone_nr2(inode->i_zone + 8, &changed); |
| read_block(block, (char *) dind); |
| blk_chg = 0; |
| result = check_zone_nr2(dind + blknr / 256, &blk_chg); |
| if (blk_chg) |
| write_block(block, (char *) dind); |
| block = result; |
| read_block(block, (char *) ind); |
| blk_chg = 0; |
| result = check_zone_nr2(ind + blknr % 256, &blk_chg); |
| if (blk_chg) |
| write_block(block, (char *) ind); |
| return result; |
| } |
| blknr -= 256 * 256; |
| block = check_zone_nr2(inode->i_zone + 9, &changed); |
| read_block(block, (char *) tind); |
| blk_chg = 0; |
| result = check_zone_nr2(tind + blknr / (256 * 256), &blk_chg); |
| if (blk_chg) |
| write_block(block, (char *) tind); |
| block = result; |
| read_block(block, (char *) dind); |
| blk_chg = 0; |
| result = check_zone_nr2(dind + (blknr / 256) % 256, &blk_chg); |
| if (blk_chg) |
| write_block(block, (char *) dind); |
| block = result; |
| read_block(block, (char *) ind); |
| blk_chg = 0; |
| result = check_zone_nr2(ind + blknr % 256, &blk_chg); |
| if (blk_chg) |
| write_block(block, (char *) ind); |
| return result; |
| } |
| #endif |
| |
| static void write_super_block(void) |
| { |
| /* |
| * Set the state of the filesystem based on whether or not there |
| * are uncorrected errors. The filesystem valid flag is |
| * unconditionally set if we get this far. |
| */ |
| Super.s_state |= MINIX_VALID_FS; |
| if (errors_uncorrected) |
| Super.s_state |= MINIX_ERROR_FS; |
| else |
| Super.s_state &= ~MINIX_ERROR_FS; |
| |
| if (BLOCK_SIZE != lseek(IN, BLOCK_SIZE, SEEK_SET)) |
| die("seek failed in write_super_block"); |
| if (BLOCK_SIZE != write(IN, super_block_buffer, BLOCK_SIZE)) |
| die("unable to write super-block"); |
| |
| return; |
| } |
| |
| static void write_tables(void) |
| { |
| write_super_block(); |
| |
| if (IMAPS * BLOCK_SIZE != write(IN, inode_map, IMAPS * BLOCK_SIZE)) |
| die("Unable to write inode map"); |
| if (ZMAPS * BLOCK_SIZE != write(IN, zone_map, ZMAPS * BLOCK_SIZE)) |
| die("Unable to write zone map"); |
| if (INODE_BUFFER_SIZE != write(IN, inode_buffer, INODE_BUFFER_SIZE)) |
| die("Unable to write inodes"); |
| } |
| |
| static void get_dirsize(void) |
| { |
| int block; |
| char blk[BLOCK_SIZE]; |
| int size; |
| |
| #ifdef BB_FEATURE_MINIX2 |
| if (version2) |
| block = Inode2[ROOT_INO].i_zone[0]; |
| else |
| #endif |
| block = Inode[ROOT_INO].i_zone[0]; |
| read_block(block, blk); |
| for (size = 16; size < BLOCK_SIZE; size <<= 1) { |
| if (strcmp(blk + size + 2, "..") == 0) { |
| dirsize = size; |
| namelen = size - 2; |
| return; |
| } |
| } |
| /* use defaults */ |
| } |
| |
| static void read_superblock(void) |
| { |
| if (BLOCK_SIZE != lseek(IN, BLOCK_SIZE, SEEK_SET)) |
| die("seek failed"); |
| if (BLOCK_SIZE != read(IN, super_block_buffer, BLOCK_SIZE)) |
| die("unable to read super block"); |
| if (MAGIC == MINIX_SUPER_MAGIC) { |
| namelen = 14; |
| dirsize = 16; |
| version2 = 0; |
| } else if (MAGIC == MINIX_SUPER_MAGIC2) { |
| namelen = 30; |
| dirsize = 32; |
| version2 = 0; |
| #ifdef BB_FEATURE_MINIX2 |
| } else if (MAGIC == MINIX2_SUPER_MAGIC) { |
| namelen = 14; |
| dirsize = 16; |
| version2 = 1; |
| } else if (MAGIC == MINIX2_SUPER_MAGIC2) { |
| namelen = 30; |
| dirsize = 32; |
| version2 = 1; |
| #endif |
| } else |
| 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"); |
| if (ZMAPS * BLOCK_SIZE * 8 < ZONES - FIRSTZONE + 1) |
| 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, sizeof(inode_map)); |
| memset(zone_map, 0, sizeof(zone_map)); |
| inode_buffer = xmalloc(INODE_BUFFER_SIZE); |
| inode_count = xmalloc(INODES + 1); |
| zone_count = xmalloc(ZONES); |
| if (IMAPS * BLOCK_SIZE != read(IN, inode_map, IMAPS * BLOCK_SIZE)) |
| die("Unable to read inode map"); |
| if (ZMAPS * BLOCK_SIZE != read(IN, zone_map, ZMAPS * BLOCK_SIZE)) |
| die("Unable to read zone map"); |
| 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"); |
| errors_uncorrected = 1; |
| } |
| get_dirsize(); |
| if (show) { |
| printf("%ld inodes\n", INODES); |
| printf("%ld blocks\n", ZONES); |
| printf("Firstdatazone=%ld (%ld)\n", FIRSTZONE, NORM_FIRSTZONE); |
| printf("Zonesize=%d\n", BLOCK_SIZE << ZONESIZE); |
| printf("Maxsize=%ld\n", MAXSIZE); |
| printf("Filesystem state=%d\n", Super.s_state); |
| printf("namelen=%d\n\n", namelen); |
| } |
| } |
| |
| struct minix_inode *get_inode(unsigned int nr) |
| { |
| struct minix_inode *inode; |
| |
| if (!nr || nr > INODES) |
| return NULL; |
| total++; |
| inode = Inode + nr; |
| if (!inode_count[nr]) { |
| if (!inode_in_use(nr)) { |
| printf("Inode %d marked not used, but used for file '", nr); |
| print_current_name(); |
| printf("'\n"); |
| if (repair) { |
| if (ask("Mark in use", 1)) |
| mark_inode(nr); |
| } else { |
| errors_uncorrected = 1; |
| } |
| } |
| if (S_ISDIR(inode->i_mode)) |
| directory++; |
| else if (S_ISREG(inode->i_mode)) |
| regular++; |
| else if (S_ISCHR(inode->i_mode)) |
| chardev++; |
| else if (S_ISBLK(inode->i_mode)) |
| blockdev++; |
| else if (S_ISLNK(inode->i_mode)) |
| symlinks++; |
| else if (S_ISSOCK(inode->i_mode)); |
| else if (S_ISFIFO(inode->i_mode)); |
| else { |
| print_current_name(); |
| printf(" has mode %05o\n", inode->i_mode); |
| } |
| |
| } else |
| links++; |
| if (!++inode_count[nr]) { |
| printf("Warning: inode count too big.\n"); |
| inode_count[nr]--; |
| errors_uncorrected = 1; |
| } |
| return inode; |
| } |
| |
| #ifdef BB_FEATURE_MINIX2 |
| struct minix2_inode *get_inode2(unsigned int nr) |
| { |
| struct minix2_inode *inode; |
| |
| if (!nr || nr > INODES) |
| return NULL; |
| total++; |
| inode = Inode2 + nr; |
| if (!inode_count[nr]) { |
| if (!inode_in_use(nr)) { |
| printf("Inode %d marked not used, but used for file '", nr); |
| print_current_name(); |
| printf("'\n"); |
| if (repair) { |
| if (ask("Mark in use", 1)) |
| mark_inode(nr); |
| else |
| errors_uncorrected = 1; |
| } |
| } |
| if (S_ISDIR(inode->i_mode)) |
| directory++; |
| else if (S_ISREG(inode->i_mode)) |
| regular++; |
| else if (S_ISCHR(inode->i_mode)) |
| chardev++; |
| else if (S_ISBLK(inode->i_mode)) |
| blockdev++; |
| else if (S_ISLNK(inode->i_mode)) |
| symlinks++; |
| else if (S_ISSOCK(inode->i_mode)); |
| else if (S_ISFIFO(inode->i_mode)); |
| else { |
| print_current_name(); |
| printf(" has mode %05o\n", inode->i_mode); |
| } |
| } else |
| links++; |
| if (!++inode_count[nr]) { |
| printf("Warning: inode count too big.\n"); |
| inode_count[nr]--; |
| errors_uncorrected = 1; |
| } |
| return inode; |
| } |
| #endif |
| |
| static void check_root(void) |
| { |
| struct minix_inode *inode = Inode + ROOT_INO; |
| |
| if (!inode || !S_ISDIR(inode->i_mode)) |
| die("root inode isn't a directory"); |
| } |
| |
| #ifdef BB_FEATURE_MINIX2 |
| static void check_root2(void) |
| { |
| struct minix2_inode *inode = Inode2 + ROOT_INO; |
| |
| if (!inode || !S_ISDIR(inode->i_mode)) |
| die("root inode isn't a directory"); |
| } |
| #endif |
| |
| static int add_zone(unsigned short *znr, int *corrected) |
| { |
| int result; |
| int block; |
| |
| result = 0; |
| block = check_zone_nr(znr, corrected); |
| if (!block) |
| return 0; |
| if (zone_count[block]) { |
| printf("Block has been used before. Now in file `"); |
| print_current_name(); |
| printf("'."); |
| if (ask("Clear", 1)) { |
| *znr = 0; |
| block = 0; |
| *corrected = 1; |
| } |
| } |
| if (!block) |
| return 0; |
| if (!zone_in_use(block)) { |
| printf("Block %d in file `", block); |
| print_current_name(); |
| printf("' is marked not in use."); |
| if (ask("Correct", 1)) |
| mark_zone(block); |
| } |
| if (!++zone_count[block]) |
| zone_count[block]--; |
| return block; |
| } |
| |
| #ifdef BB_FEATURE_MINIX2 |
| static int add_zone2(unsigned int *znr, int *corrected) |
| { |
| int result; |
| int block; |
| |
| result = 0; |
| block = check_zone_nr2(znr, corrected); |
| if (!block) |
| return 0; |
| if (zone_count[block]) { |
| printf("Block has been used before. Now in file `"); |
| print_current_name(); |
| printf("'."); |
| if (ask("Clear", 1)) { |
| *znr = 0; |
| block = 0; |
| *corrected = 1; |
| } |
| } |
| if (!block) |
| return 0; |
| if (!zone_in_use(block)) { |
| printf("Block %d in file `", block); |
| print_current_name(); |
| printf("' is marked not in use."); |
| if (ask("Correct", 1)) |
| mark_zone(block); |
| } |
| if (!++zone_count[block]) |
| zone_count[block]--; |
| return block; |
| } |
| #endif |
| |
| static void add_zone_ind(unsigned short *znr, int *corrected) |
| { |
| static char blk[BLOCK_SIZE]; |
| int i, chg_blk = 0; |
| int block; |
| |
| block = add_zone(znr, corrected); |
| if (!block) |
| return; |
| read_block(block, blk); |
| for (i = 0; i < (BLOCK_SIZE >> 1); i++) |
| add_zone(i + (unsigned short *) blk, &chg_blk); |
| if (chg_blk) |
| write_block(block, blk); |
| } |
| |
| #ifdef BB_FEATURE_MINIX2 |
| static void add_zone_ind2(unsigned int *znr, int *corrected) |
| { |
| static char blk[BLOCK_SIZE]; |
| int i, chg_blk = 0; |
| int block; |
| |
| block = add_zone2(znr, corrected); |
| if (!block) |
| return; |
| read_block(block, blk); |
| for (i = 0; i < BLOCK_SIZE >> 2; i++) |
| add_zone2(i + (unsigned int *) blk, &chg_blk); |
| if (chg_blk) |
| write_block(block, blk); |
| } |
| #endif |
| |
| static void add_zone_dind(unsigned short *znr, int *corrected) |
| { |
| static char blk[BLOCK_SIZE]; |
| int i, blk_chg = 0; |
| int block; |
| |
| block = add_zone(znr, corrected); |
| if (!block) |
| return; |
| read_block(block, blk); |
| for (i = 0; i < (BLOCK_SIZE >> 1); i++) |
| add_zone_ind(i + (unsigned short *) blk, &blk_chg); |
| if (blk_chg) |
| write_block(block, blk); |
| } |
| |
| #ifdef BB_FEATURE_MINIX2 |
| static void add_zone_dind2(unsigned int *znr, int *corrected) |
| { |
| static char blk[BLOCK_SIZE]; |
| int i, blk_chg = 0; |
| int block; |
| |
| block = add_zone2(znr, corrected); |
| if (!block) |
| return; |
| read_block(block, blk); |
| for (i = 0; i < BLOCK_SIZE >> 2; i++) |
| add_zone_ind2(i + (unsigned int *) blk, &blk_chg); |
| if (blk_chg) |
| write_block(block, blk); |
| } |
| |
| static void add_zone_tind2(unsigned int *znr, int *corrected) |
| { |
| static char blk[BLOCK_SIZE]; |
| int i, blk_chg = 0; |
| int block; |
| |
| block = add_zone2(znr, corrected); |
| if (!block) |
| return; |
| read_block(block, blk); |
| for (i = 0; i < BLOCK_SIZE >> 2; i++) |
| add_zone_dind2(i + (unsigned int *) blk, &blk_chg); |
| if (blk_chg) |
| write_block(block, blk); |
| } |
| #endif |
| |
| static void check_zones(unsigned int i) |
| { |
| struct minix_inode *inode; |
| |
| if (!i || i > INODES) |
| return; |
| if (inode_count[i] > 1) /* have we counted this file already? */ |
| return; |
| inode = Inode + i; |
| if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
| !S_ISLNK(inode->i_mode)) return; |
| for (i = 0; i < 7; i++) |
| add_zone(i + inode->i_zone, &changed); |
| add_zone_ind(7 + inode->i_zone, &changed); |
| add_zone_dind(8 + inode->i_zone, &changed); |
| } |
| |
| #ifdef BB_FEATURE_MINIX2 |
| static void check_zones2(unsigned int i) |
| { |
| struct minix2_inode *inode; |
| |
| if (!i || i > INODES) |
| return; |
| if (inode_count[i] > 1) /* have we counted this file already? */ |
| return; |
| inode = Inode2 + i; |
| if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) |
| && !S_ISLNK(inode->i_mode)) |
| return; |
| for (i = 0; i < 7; i++) |
| add_zone2(i + inode->i_zone, &changed); |
| add_zone_ind2(7 + inode->i_zone, &changed); |
| add_zone_dind2(8 + inode->i_zone, &changed); |
| add_zone_tind2(9 + inode->i_zone, &changed); |
| } |
| #endif |
| |
| static void check_file(struct minix_inode *dir, unsigned int offset) |
| { |
| static char blk[BLOCK_SIZE]; |
| struct minix_inode *inode; |
| int ino; |
| char *name; |
| int block; |
| |
| block = map_block(dir, offset / BLOCK_SIZE); |
| read_block(block, blk); |
| name = blk + (offset % BLOCK_SIZE) + 2; |
| ino = *(unsigned short *) (name - 2); |
| if (ino > INODES) { |
| print_current_name(); |
| printf(" contains a bad inode number for file '"); |
| printf("%.*s'.", namelen, name); |
| if (ask(" Remove", 1)) { |
| *(unsigned short *) (name - 2) = 0; |
| write_block(block, blk); |
| } |
| ino = 0; |
| } |
| if (name_depth < MAX_DEPTH) |
| strncpy(name_list[name_depth], name, namelen); |
| name_depth++; |
| inode = get_inode(ino); |
| name_depth--; |
| if (!offset) { |
| if (!inode || strcmp(".", name)) { |
| print_current_name(); |
| printf(": bad directory: '.' isn't first\n"); |
| errors_uncorrected = 1; |
| } else |
| return; |
| } |
| if (offset == dirsize) { |
| if (!inode || strcmp("..", name)) { |
| print_current_name(); |
| printf(": bad directory: '..' isn't second\n"); |
| errors_uncorrected = 1; |
| } else |
| return; |
| } |
| if (!inode) |
| return; |
| if (name_depth < MAX_DEPTH) |
| strncpy(name_list[name_depth], name, namelen); |
| name_depth++; |
| if (list) { |
| if (verbose) |
| printf("%6d %07o %3d ", ino, inode->i_mode, inode->i_nlinks); |
| print_current_name(); |
| if (S_ISDIR(inode->i_mode)) |
| printf(":\n"); |
| else |
| printf("\n"); |
| } |
| check_zones(ino); |
| if (inode && S_ISDIR(inode->i_mode)) |
| recursive_check(ino); |
| name_depth--; |
| return; |
| } |
| |
| #ifdef BB_FEATURE_MINIX2 |
| static void check_file2(struct minix2_inode *dir, unsigned int offset) |
| { |
| static char blk[BLOCK_SIZE]; |
| struct minix2_inode *inode; |
| int ino; |
| char *name; |
| int block; |
| |
| block = map_block2(dir, offset / BLOCK_SIZE); |
| read_block(block, blk); |
| name = blk + (offset % BLOCK_SIZE) + 2; |
| ino = *(unsigned short *) (name - 2); |
| if (ino > INODES) { |
| print_current_name(); |
| printf(" contains a bad inode number for file '"); |
| printf("%.*s'.", namelen, name); |
| if (ask(" Remove", 1)) { |
| *(unsigned short *) (name - 2) = 0; |
| write_block(block, blk); |
| } |
| ino = 0; |
| } |
| if (name_depth < MAX_DEPTH) |
| strncpy(name_list[name_depth], name, namelen); |
| name_depth++; |
| inode = get_inode2(ino); |
| name_depth--; |
| if (!offset) { |
| if (!inode || strcmp(".", name)) { |
| print_current_name(); |
| printf(": bad directory: '.' isn't first\n"); |
| errors_uncorrected = 1; |
| } else |
| return; |
| } |
| if (offset == dirsize) { |
| if (!inode || strcmp("..", name)) { |
| print_current_name(); |
| printf(": bad directory: '..' isn't second\n"); |
| errors_uncorrected = 1; |
| } else |
| return; |
| } |
| if (!inode) |
| return; |
| name_depth++; |
| if (list) { |
| if (verbose) |
| printf("%6d %07o %3d ", ino, inode->i_mode, inode->i_nlinks); |
| print_current_name(); |
| if (S_ISDIR(inode->i_mode)) |
| printf(":\n"); |
| else |
| printf("\n"); |
| } |
| check_zones2(ino); |
| if (inode && S_ISDIR(inode->i_mode)) |
| recursive_check2(ino); |
| name_depth--; |
| return; |
| } |
| #endif |
| |
| static void recursive_check(unsigned int ino) |
| { |
| struct minix_inode *dir; |
| unsigned int offset; |
| |
| dir = Inode + ino; |
| if (!S_ISDIR(dir->i_mode)) |
| die("internal error"); |
| if (dir->i_size < 2 * dirsize) { |
| print_current_name(); |
| printf(": bad directory: size<32"); |
| errors_uncorrected = 1; |
| } |
| for (offset = 0; offset < dir->i_size; offset += dirsize) |
| check_file(dir, offset); |
| } |
| |
| #ifdef BB_FEATURE_MINIX2 |
| static void recursive_check2(unsigned int ino) |
| { |
| struct minix2_inode *dir; |
| unsigned int offset; |
| |
| dir = Inode2 + ino; |
| if (!S_ISDIR(dir->i_mode)) |
| die("internal error"); |
| if (dir->i_size < 2 * dirsize) { |
| print_current_name(); |
| printf(": bad directory: size < 32"); |
| errors_uncorrected = 1; |
| } |
| for (offset = 0; offset < dir->i_size; offset += dirsize) |
| check_file2(dir, offset); |
| } |
| #endif |
| |
| static int bad_zone(int i) |
| { |
| char buffer[1024]; |
| |
| if (BLOCK_SIZE * i != lseek(IN, BLOCK_SIZE * i, SEEK_SET)) |
| die("seek failed in bad_zone"); |
| return (BLOCK_SIZE != read(IN, buffer, BLOCK_SIZE)); |
| } |
| |
| static void check_counts(void) |
| { |
| int i; |
| |
| for (i = 1; i <= INODES; i++) { |
| if (!inode_in_use(i) && Inode[i].i_mode && warn_mode) { |
| printf("Inode %d mode not cleared.", 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); |
| if (ask("Clear", 1)) |
| unmark_inode(i); |
| continue; |
| } |
| if (!inode_in_use(i)) { |
| printf("Inode %d used, marked 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.", |
| 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]; |
| changed = 1; |
| } |
| } |
| } |
| for (i = FIRSTZONE; i < ZONES; i++) { |
| if (zone_in_use(i) == zone_count[i]) |
| continue; |
| if (!zone_count[i]) { |
| if (bad_zone(i)) |
| continue; |
| printf("Zone %d: marked in use, no file uses it.", i); |
| if (ask("Unmark", 1)) |
| unmark_zone(i); |
| continue; |
| } |
| printf("Zone %d: %sin use, counted=%d\n", |
| i, zone_in_use(i) ? "" : "not ", zone_count[i]); |
| } |
| } |
| |
| #ifdef BB_FEATURE_MINIX2 |
| static void check_counts2(void) |
| { |
| int i; |
| |
| for (i = 1; i <= INODES; i++) { |
| if (!inode_in_use(i) && Inode2[i].i_mode && warn_mode) { |
| printf("Inode %d mode not cleared.", 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); |
| if (ask("Clear", 1)) |
| unmark_inode(i); |
| continue; |
| } |
| if (!inode_in_use(i)) { |
| printf("Inode %d used, marked 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.", |
| i, Inode2[i].i_mode, Inode2[i].i_nlinks, |
| inode_count[i]); |
| if (ask("Set i_nlinks to count", 1)) { |
| Inode2[i].i_nlinks = inode_count[i]; |
| changed = 1; |
| } |
| } |
| } |
| for (i = FIRSTZONE; i < ZONES; i++) { |
| if (zone_in_use(i) == zone_count[i]) |
| continue; |
| if (!zone_count[i]) { |
| if (bad_zone(i)) |
| continue; |
| printf("Zone %d: marked in use, no file uses it.", i); |
| if (ask("Unmark", 1)) |
| unmark_zone(i); |
| continue; |
| } |
| printf("Zone %d: %sin use, counted=%d\n", |
| i, zone_in_use(i) ? "" : "not ", zone_count[i]); |
| } |
| } |
| #endif |
| |
| static void check(void) |
| { |
| memset(inode_count, 0, (INODES + 1) * sizeof(*inode_count)); |
| memset(zone_count, 0, ZONES * sizeof(*zone_count)); |
| check_zones(ROOT_INO); |
| recursive_check(ROOT_INO); |
| check_counts(); |
| } |
| |
| #ifdef BB_FEATURE_MINIX2 |
| static void check2(void) |
| { |
| memset(inode_count, 0, (INODES + 1) * sizeof(*inode_count)); |
| memset(zone_count, 0, ZONES * sizeof(*zone_count)); |
| check_zones2(ROOT_INO); |
| recursive_check2(ROOT_INO); |
| check_counts2(); |
| } |
| #endif |
| |
| /* Wed Feb 9 15:17:06 MST 2000 */ |
| /* dynamically allocate name_list (instead of making it static) */ |
| static void alloc_name_list(void) |
| { |
| int i; |
| |
| name_list = xmalloc(sizeof(char *) * MAX_DEPTH); |
| for (i = 0; i < MAX_DEPTH; i++) |
| name_list[i] = xmalloc(sizeof(char) * BUFSIZ + 1); |
| } |
| |
| #ifdef BB_FEATURE_CLEAN_UP |
| /* execute this atexit() to deallocate name_list[] */ |
| /* piptigger was here */ |
| static void free_name_list(void) |
| { |
| int i; |
| |
| if (name_list) { |
| for (i = 0; i < MAX_DEPTH; i++) { |
| if (name_list[i]) { |
| free(name_list[i]); |
| } |
| } |
| free(name_list); |
| } |
| } |
| #endif |
| |
| extern int fsck_minix_main(int argc, char **argv) |
| { |
| struct termios tmp; |
| int count; |
| int retcode = 0; |
| |
| alloc_name_list(); |
| #ifdef BB_FEATURE_CLEAN_UP |
| /* Don't bother to free memory. Exit does |
| * that automagically, so we can save a few bytes */ |
| atexit(free_name_list); |
| #endif |
| |
| if (INODE_SIZE * MINIX_INODES_PER_BLOCK != BLOCK_SIZE) |
| die("bad inode size"); |
| #ifdef BB_FEATURE_MINIX2 |
| if (INODE_SIZE2 * MINIX2_INODES_PER_BLOCK != BLOCK_SIZE) |
| die("bad v2 inode size"); |
| #endif |
| while (argc-- > 1) { |
| argv++; |
| if (argv[0][0] != '-') { |
| if (device_name) |
| show_usage(); |
| else |
| device_name = argv[0]; |
| } else |
| while (*++argv[0]) |
| switch (argv[0][0]) { |
| case 'l': |
| list = 1; |
| break; |
| case 'a': |
| automatic = 1; |
| repair = 1; |
| break; |
| case 'r': |
| automatic = 0; |
| repair = 1; |
| break; |
| case 'v': |
| verbose = 1; |
| break; |
| case 's': |
| show = 1; |
| break; |
| case 'm': |
| warn_mode = 1; |
| break; |
| case 'f': |
| force = 1; |
| break; |
| default: |
| show_usage(); |
| } |
| } |
| if (!device_name) |
| show_usage(); |
| check_mount(); /* trying to check a mounted filesystem? */ |
| if (repair && !automatic) { |
| if (!isatty(0) || !isatty(1)) |
| 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); |
| leave(8); |
| } |
| for (count = 0; count < 3; count++) |
| sync(); |
| read_superblock(); |
| |
| /* |
| * Determine whether or not we should continue with the checking. |
| * This is based on the status of the filesystem valid and error |
| * flags and whether or not the -f switch was specified on the |
| * command line. |
| */ |
| printf("%s, %s\n", applet_name, program_version); |
| 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); |
| return retcode; |
| } else if (force) |
| printf("Forcing filesystem check on %s.\n", device_name); |
| else if (repair) |
| printf("Filesystem on %s is dirty, needs checking.\n", |
| device_name); |
| |
| read_tables(); |
| |
| if (repair && !automatic) { |
| tcgetattr(0, &termios); |
| tmp = termios; |
| tmp.c_lflag &= ~(ICANON | ECHO); |
| tcsetattr(0, TCSANOW, &tmp); |
| termios_set = 1; |
| } |
| #ifdef BB_FEATURE_MINIX2 |
| if (version2) { |
| check_root2(); |
| check2(); |
| } else |
| #endif |
| { |
| check_root(); |
| check(); |
| } |
| if (verbose) { |
| int i, free; |
| |
| for (i = 1, free = 0; i <= INODES; i++) |
| if (!inode_in_use(i)) |
| free++; |
| printf("\n%6ld inodes used (%ld%%)\n", (INODES - free), |
| 100 * (INODES - free) / INODES); |
| for (i = FIRSTZONE, free = 0; i < ZONES; i++) |
| if (!zone_in_use(i)) |
| free++; |
| printf("%6ld zones used (%ld%%)\n", (ZONES - free), |
| 100 * (ZONES - free) / ZONES); |
| printf("\n%6d regular files\n" |
| "%6d directories\n" |
| "%6d character device files\n" |
| "%6d block device files\n" |
| "%6d links\n" |
| "%6d symbolic links\n" |
| "------\n" |
| "%6d files\n", |
| 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"); |
| for (count = 0; count < 3; count++) |
| sync(); |
| } else if (repair) |
| write_super_block(); |
| |
| if (repair && !automatic) |
| tcsetattr(0, TCSANOW, &termios); |
| |
| if (changed) |
| retcode += 3; |
| if (errors_uncorrected) |
| retcode += 4; |
| return retcode; |
| } |