X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=util-linux%2Ffsck_minix.c;h=2ab7530ea2057c596caca2e069bfad43fa0763c8;hb=179e88bec91cfe58096900dc5509a080ff37b083;hp=b35e6bb0740fe964f781d08ce50eca5d42288e5c;hpb=77508b29fa63d99136fc09f00c5a2addd6331b4c;p=oweals%2Fbusybox.git diff --git a/util-linux/fsck_minix.c b/util-linux/fsck_minix.c index b35e6bb07..2ab7530ea 100644 --- a/util-linux/fsck_minix.c +++ b/util-linux/fsck_minix.c @@ -2,17 +2,18 @@ /* * 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 source tree. */ /* - * 09.11.91 - made the first rudimetary functions + * 09.11.91 - made the first rudimentary 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 + * 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 @@ -21,49 +22,48 @@ * 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 + * 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.. + * 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 + * superblock 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. + * 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) + * 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) + * 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) + * for modern libcs (janl@math.uio.no, Nicolai Langfeldt) * - * 02.07.96 - Added C bit fiddling routines from rmk@ecs.soton.ac.uk + * 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 + * 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) + * This should make minix fsck system-independent. + * (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 . + * warnings. Added mc68k bitops from + * Joerg Dorchain . * * 06.11.96 - Added v2 code submitted by Joerg Dorchain, but written by * Andreas Schwab. * - * 1999-02-22 Arkadiusz Mi¶kiewicz + * 1999-02-22 Arkadiusz Mickiewicz * - added Native Language Support * * @@ -73,284 +73,321 @@ * 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 + * Usage: 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 + * -s for superblock 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 :-). + * enforced (but it's not much fun on a character device :-). */ +//config:config FSCK_MINIX +//config: bool "fsck_minix" +//config: default y +//config: help +//config: The minix filesystem is a nice, small, compact, read-write filesystem +//config: with little overhead. It is not a journaling filesystem however and +//config: can experience corruption if it is not properly unmounted or if the +//config: power goes off in the middle of a write. This utility allows you to +//config: check for and attempt to repair any corruption that occurs to a minix +//config: filesystem. + +//applet:IF_FSCK_MINIX(APPLET_ODDNAME(fsck.minix, fsck_minix, BB_DIR_SBIN, BB_SUID_DROP, fsck_minix)) + +//kbuild:lib-$(CONFIG_FSCK_MINIX) += fsck_minix.o + +//usage:#define fsck_minix_trivial_usage +//usage: "[-larvsmf] BLOCKDEV" +//usage:#define fsck_minix_full_usage "\n\n" +//usage: "Check MINIX filesystem\n" +//usage: "\n -l List all filenames" +//usage: "\n -r Perform interactive repairs" +//usage: "\n -a Perform automatic repairs" +//usage: "\n -v Verbose" +//usage: "\n -s Output superblock information" +//usage: "\n -m Show \"mode not cleared\" warnings" +//usage: "\n -f Force file system check" -#include "busybox.h" -#include -#include -#include -#include -#include -#include -#include -#include #include -#include - - - typedef unsigned char u8; -typedef unsigned short u16; -typedef unsigned int u32; - - -#define MINIX_ROOT_INO 1 -#define MINIX_LINK_MAX 250 -#define MINIX2_LINK_MAX 65530 - -#define MINIX_I_MAP_SLOTS 8 -#define MINIX_Z_MAP_SLOTS 64 -#define MINIX_SUPER_MAGIC 0x137F /* original minix fs */ -#define MINIX_SUPER_MAGIC2 0x138F /* minix fs, 30 char names */ -#define MINIX2_SUPER_MAGIC 0x2468 /* minix V2 fs */ -#define MINIX2_SUPER_MAGIC2 0x2478 /* minix V2 fs, 30 char names */ -#define MINIX_VALID_FS 0x0001 /* Clean fs. */ -#define 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))) +#include "libbb.h" +#include "minix.h" -#define MINIX_V1 0x0001 /* original minix fs */ -#define 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]; -}; +#ifndef BLKGETSIZE +#define BLKGETSIZE _IO(0x12,96) /* return device size */ +#endif -/* - * 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 BUG_bad_inode_size { + char BUG_bad_inode1_size[(INODE_SIZE1 * MINIX1_INODES_PER_BLOCK != BLOCK_SIZE) ? -1 : 1]; +#if ENABLE_FEATURE_MINIX2 + char BUG_bad_inode2_size[(INODE_SIZE2 * MINIX2_INODES_PER_BLOCK != BLOCK_SIZE) ? -1 : 1]; +#endif }; -struct minix_dir_entry { - u16 inode; - char name[0]; +enum { +#ifdef UNUSED + MINIX1_LINK_MAX = 250, + MINIX2_LINK_MAX = 65530, + MINIX_I_MAP_SLOTS = 8, + MINIX_Z_MAP_SLOTS = 64, + MINIX_V1 = 0x0001, /* original minix fs */ + MINIX_V2 = 0x0002, /* minix V2 fs */ +#endif + MINIX_NAME_MAX = 255, /* # chars in a file name */ }; -#define BLOCK_SIZE_BITS 10 -#define BLOCK_SIZE (1<> 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 INODE_BUFFER_SIZE (INODE_BLOCKS * BLOCK_SIZE) +#define NORM_FIRSTZONE (2 + IMAPS + ZMAPS + INODE_BLOCKS) -#define mark_inode(x) (setbit(inode_map,(x)),changed=1) -#define unmark_inode(x) (clrbit(inode_map,(x)),changed=1) +/* Before you ask "where they come from?": */ +/* setbit/clrbit are supplied by sys/param.h */ -#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) +static int minix_bit(const char *a, unsigned i) { - if (termios_set) - tcsetattr(0, TCSANOW, &termios); - exit(status); + return (a[i >> 3] & (1<<(i & 7))); } -static void show_usage(void) +static void minix_setbit(char *a, unsigned i) { - usage(fsck_minix_usage); + setbit(a, i); + changed = 1; } +static void minix_clrbit(char *a, unsigned i) +{ + clrbit(a, i); + changed = 1; +} + +/* Note: do not assume 0/1, it is 0/nonzero */ +#define zone_in_use(x) (minix_bit(zone_map,(x)-FIRSTZONE+1)) +#define inode_in_use(x) (minix_bit(inode_map,(x))) +#define mark_inode(x) (minix_setbit(inode_map,(x))) +#define unmark_inode(x) (minix_clrbit(inode_map,(x))) + +#define mark_zone(x) (minix_setbit(zone_map,(x)-FIRSTZONE+1)) +#define unmark_zone(x) (minix_clrbit(zone_map,(x)-FIRSTZONE+1)) + + +static void recursive_check(unsigned ino); +#if ENABLE_FEATURE_MINIX2 +static void recursive_check2(unsigned ino); +#endif + +static void die(const char *str) NORETURN; static void die(const char *str) { - error_msg("%s\n", str); - leave(8); + if (termios_set) + tcsetattr_stdin_TCSANOW(&sv_termios); + bb_error_msg_and_die("%s", str); } -/* - * This simply goes through the file-name data and prints out the - * current file. - */ -static void print_current_name(void) +static void push_filename(const char *name) { - int i = 0; + // /dir/dir/dir/file + // ^ ^ ^ + // [0] [1] [2] <-name_component[i] + if (name_depth < MAX_DEPTH) { + int len; + char *p = name_component[name_depth]; + *p++ = '/'; + len = sprintf(p, "%.*s", namelen, name); + name_component[name_depth + 1] = p + len; + } + name_depth++; +} - while (i < name_depth) - printf("/%.*s", namelen, name_list[i++]); - if (i == 0) - printf("/"); +static void pop_filename(void) +{ + name_depth--; + if (name_depth < MAX_DEPTH) { + *name_component[name_depth] = '\0'; + if (!name_depth) { + current_name[0] = '/'; + current_name[1] = '\0'; + } + } } static int ask(const char *string, int def) { int c; - if (!repair) { - printf("\n"); + if (!OPT_repair) { + bb_putchar('\n'); errors_uncorrected = 1; return 0; } - if (automatic) { - printf("\n"); + if (OPT_automatic) { + bb_putchar('\n'); if (!def) errors_uncorrected = 1; return def; } printf(def ? "%s (y/n)? " : "%s (n/y)? ", string); for (;;) { - fflush(stdout); - if ((c = getchar()) == EOF) { + fflush_all(); + c = getchar(); + if (c == EOF) { if (!def) errors_uncorrected = 1; return def; } - c = toupper(c); - if (c == 'Y') { + if (c == '\n') + break; + c |= 0x20; /* tolower */ + if (c == 'y') { def = 1; break; - } else if (c == 'N') { + } + if (c == 'n') { def = 0; break; - } else if (c == ' ' || c == '\n') - break; + } } if (def) - printf("y\n"); + puts("y"); else { - printf("n\n"); + puts("n"); errors_uncorrected = 1; } return def; @@ -363,41 +400,29 @@ static int ask(const char *string, int def) */ 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 + if (find_mount_point(device_name, 0)) { + int cont; +#if ENABLE_FEATURE_MTAB_SUPPORT + /* + * If the root is mounted read-only, then /etc/mtab is + * probably not correct; so we won't issue a warning based on + * it. + */ + int fd = open(bb_path_mtab_file, O_RDWR); + + if (fd < 0 && errno == EROFS) + return; close(fd); - - printf("%s is mounted. ", device_name); - if (isatty(0) && isatty(1)) - cont = ask("Do you really want to continue", 0); - else +#endif + printf("%s is mounted. ", device_name); cont = 0; - if (!cont) { - printf("check aborted.\n"); - exit(0); + if (isatty(0) && isatty(1)) + cont = ask("Do you really want to continue", 0); + if (!cont) { + puts("Check aborted"); + exit(EXIT_SUCCESS); + } } - return; } /* @@ -406,18 +431,18 @@ static void check_mount(void) * 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) +static int check_zone_nr2(uint32_t *nr, smallint *corrected) { + const char *msg; if (!*nr) return 0; if (*nr < FIRSTZONE) - printf("Zone nr < FIRSTZONE in file `"); + msg = "< FIRSTZONE"; else if (*nr >= ZONES) - printf("Zone nr >= ZONES in file `"); + msg = ">= ZONES"; else return *nr; - print_current_name(); - printf("'."); + printf("Zone nr %s in file '%s'. ", msg, current_name); if (ask("Remove block", 1)) { *nr = 0; *corrected = 1; @@ -425,203 +450,158 @@ static int check_zone_nr(unsigned short *nr, int *corrected) return 0; } -#ifdef BB_FEATURE_MINIX2 -static int check_zone_nr2(unsigned int *nr, int *corrected) +static int check_zone_nr(uint16_t *nr, smallint *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; + uint32_t nr32 = *nr; + int r = check_zone_nr2(&nr32, corrected); + *nr = (uint16_t)nr32; + return r; } -#endif /* * read-block reads block nr into the buffer at addr. */ -static void read_block(unsigned int nr, char *addr) +static void read_block(unsigned nr, void *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); + xlseek(dev_fd, BLOCK_SIZE * nr, SEEK_SET); + if (BLOCK_SIZE != full_read(dev_fd, addr, BLOCK_SIZE)) { + printf("%s: bad block %u in file '%s'\n", + bb_msg_read_error, nr, current_name); 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) +static void write_block(unsigned nr, void *addr) { if (!nr) return; if (nr < FIRSTZONE || nr >= ZONES) { - printf("Internal error: trying to write bad block\n" - "Write request ignored\n"); + puts("Internal error: trying to write bad block\n" + "Write request ignored"); 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"); + xlseek(dev_fd, BLOCK_SIZE * nr, SEEK_SET); + if (BLOCK_SIZE != full_write(dev_fd, addr, BLOCK_SIZE)) { + printf("%s: bad block %u in file '%s'\n", + bb_msg_write_error, nr, current_name); errors_uncorrected = 1; } } /* - * map-block calculates the absolute block nr of a block in a file. + * 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) +static int map_block(struct minix1_inode *inode, unsigned blknr) { - unsigned short ind[BLOCK_SIZE >> 1]; - unsigned short dind[BLOCK_SIZE >> 1]; - int blk_chg, block, result; + uint16_t ind[BLOCK_SIZE >> 1]; + int block, result; + smallint blk_chg; 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; + goto common; } blknr -= 512; block = check_zone_nr(inode->i_zone + 8, &changed); - read_block(block, (char *) dind); + read_block(block, ind); /* double indirect */ blk_chg = 0; - result = check_zone_nr(dind + (blknr / 512), &blk_chg); + result = check_zone_nr(&ind[blknr / 512], &blk_chg); if (blk_chg) - write_block(block, (char *) dind); + write_block(block, ind); block = result; - read_block(block, (char *) ind); + common: + read_block(block, ind); blk_chg = 0; - result = check_zone_nr(ind + (blknr % 512), &blk_chg); + result = check_zone_nr(&ind[blknr % 512], &blk_chg); if (blk_chg) - write_block(block, (char *) ind); + write_block(block, ind); return result; } -#ifdef BB_FEATURE_MINIX2 -static int map_block2(struct minix2_inode *inode, unsigned int blknr) +#if ENABLE_FEATURE_MINIX2 +static int map_block2(struct minix2_inode *inode, unsigned blknr) { - unsigned int ind[BLOCK_SIZE >> 2]; - unsigned int dind[BLOCK_SIZE >> 2]; - unsigned int tind[BLOCK_SIZE >> 2]; - int blk_chg, block, result; + uint32_t ind[BLOCK_SIZE >> 2]; + int block, result; + smallint blk_chg; 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; + goto common2; } blknr -= 256; - if (blknr >= 256 * 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; + goto common1; } blknr -= 256 * 256; block = check_zone_nr2(inode->i_zone + 9, &changed); - read_block(block, (char *) tind); + read_block(block, ind); /* triple indirect */ blk_chg = 0; - result = check_zone_nr2(tind + blknr / (256 * 256), &blk_chg); + result = check_zone_nr2(&ind[blknr / (256 * 256)], &blk_chg); if (blk_chg) - write_block(block, (char *) tind); + write_block(block, ind); block = result; - read_block(block, (char *) dind); + common1: + read_block(block, ind); /* double indirect */ blk_chg = 0; - result = check_zone_nr2(dind + (blknr / 256) % 256, &blk_chg); + result = check_zone_nr2(&ind[(blknr / 256) % 256], &blk_chg); if (blk_chg) - write_block(block, (char *) dind); + write_block(block, ind); block = result; - read_block(block, (char *) ind); + common2: + read_block(block, ind); blk_chg = 0; - result = check_zone_nr2(ind + blknr % 256, &blk_chg); + result = check_zone_nr2(&ind[blknr % 256], &blk_chg); if (blk_chg) - write_block(block, (char *) ind); + write_block(block, ind); return result; } #endif -static void write_super_block(void) +static void write_superblock(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_VALID_FS | MINIX_ERROR_FS; + if (!errors_uncorrected) 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; + xlseek(dev_fd, BLOCK_SIZE, SEEK_SET); + if (BLOCK_SIZE != full_write(dev_fd, superblock_buffer, BLOCK_SIZE)) + die("can't write superblock"); } 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"); + write_superblock(); + + if (IMAPS * BLOCK_SIZE != write(dev_fd, inode_map, IMAPS * BLOCK_SIZE)) + die("can't write inode map"); + if (ZMAPS * BLOCK_SIZE != write(dev_fd, zone_map, ZMAPS * BLOCK_SIZE)) + die("can't write zone map"); + if (INODE_BUFFER_SIZE != write(dev_fd, inode_buffer, INODE_BUFFER_SIZE)) + die("can't write inodes"); } static void get_dirsize(void) @@ -630,12 +610,12 @@ static void get_dirsize(void) char blk[BLOCK_SIZE]; int size; -#ifdef BB_FEATURE_MINIX2 +#if ENABLE_FEATURE_MINIX2 if (version2) - block = Inode2[ROOT_INO].i_zone[0]; + block = Inode2[MINIX_ROOT_INO].i_zone[0]; else #endif - block = Inode[ROOT_INO].i_zone[0]; + block = Inode1[MINIX_ROOT_INO].i_zone[0]; read_block(block, blk); for (size = 16; size < BLOCK_SIZE; size <<= 1) { if (strcmp(blk + size + 2, "..") == 0) { @@ -649,22 +629,20 @@ static void get_dirsize(void) 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) { + xlseek(dev_fd, BLOCK_SIZE, SEEK_SET); + if (BLOCK_SIZE != full_read(dev_fd, superblock_buffer, BLOCK_SIZE)) + die("can't read superblock"); + /* already initialized to: + namelen = 14; + dirsize = 16; + version2 = 0; + */ + if (MAGIC == MINIX1_SUPER_MAGIC) { + } else if (MAGIC == MINIX1_SUPER_MAGIC2) { namelen = 30; dirsize = 32; - version2 = 0; -#ifdef BB_FEATURE_MINIX2 +#if ENABLE_FEATURE_MINIX2 } else if (MAGIC == MINIX2_SUPER_MAGIC) { - namelen = 14; - dirsize = 16; version2 = 1; } else if (MAGIC == MINIX2_SUPER_MAGIC2) { namelen = 30; @@ -672,184 +650,149 @@ static void read_superblock(void) version2 = 1; #endif } else - die("bad magic number in super-block"); + die("bad magic number in superblock"); if (ZONESIZE != 0 || BLOCK_SIZE != 1024) - die("Only 1k blocks/zones supported"); + 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 superblock"); if (ZMAPS * BLOCK_SIZE * 8 < ZONES - FIRSTZONE + 1) - die("bad s_zmap_blocks field in super-block"); + die("bad s_zmap_blocks field in superblock"); } 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_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 (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 (IMAPS * BLOCK_SIZE != read(dev_fd, inode_map, IMAPS * BLOCK_SIZE)) + die("can't read inode map"); + if (ZMAPS * BLOCK_SIZE != read(dev_fd, zone_map, ZMAPS * BLOCK_SIZE)) + die("can't read zone map"); + if (INODE_BUFFER_SIZE != read(dev_fd, inode_buffer, INODE_BUFFER_SIZE)) + die("can't read inodes"); if (NORM_FIRSTZONE != FIRSTZONE) { - printf("Warning: Firstzone != Norm_firstzone\n"); + puts("warning: firstzone!=norm_firstzone"); 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); + if (OPT_show) { + printf("%u inodes\n" + "%u blocks\n" + "Firstdatazone=%u (%u)\n" + "Zonesize=%u\n" + "Maxsize=%u\n" + "Filesystem state=%u\n" + "namelen=%u\n\n", + INODES, + ZONES, + FIRSTZONE, NORM_FIRSTZONE, + BLOCK_SIZE << ZONESIZE, + MAXSIZE, + Super.s_state, + namelen); } } -struct minix_inode *get_inode(unsigned int nr) +static void get_inode_common(unsigned nr, uint16_t i_mode) { - 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)) + printf("Inode %u is marked as 'unused', but it is used " + "for file '%s'\n", nr, current_name); + if (OPT_repair) { + if (ask("Mark as 'in use'", 1)) mark_inode(nr); - } else { - errors_uncorrected = 1; + else + errors_uncorrected = 1; } } - if (S_ISDIR(inode->i_mode)) + if (S_ISDIR(i_mode)) directory++; - else if (S_ISREG(inode->i_mode)) + else if (S_ISREG(i_mode)) regular++; - else if (S_ISCHR(inode->i_mode)) + else if (S_ISCHR(i_mode)) chardev++; - else if (S_ISBLK(inode->i_mode)) + else if (S_ISBLK(i_mode)) blockdev++; - else if (S_ISLNK(inode->i_mode)) + else if (S_ISLNK(i_mode)) symlinks++; - else if (S_ISSOCK(inode->i_mode)); - else if (S_ISFIFO(inode->i_mode)); + else if (S_ISSOCK(i_mode)); + else if (S_ISFIFO(i_mode)); else { - print_current_name(); - printf(" has mode %05o\n", inode->i_mode); + printf("%s has mode %05o\n", current_name, i_mode); } - } else links++; if (!++inode_count[nr]) { - printf("Warning: inode count too big.\n"); + puts("Warning: inode count too big"); inode_count[nr]--; errors_uncorrected = 1; } +} + +static struct minix1_inode *get_inode(unsigned nr) +{ + struct minix1_inode *inode; + + if (!nr || nr > INODES) + return NULL; + inode = Inode1 + nr; + get_inode_common(nr, inode->i_mode); return inode; } -#ifdef BB_FEATURE_MINIX2 -struct minix2_inode *get_inode2(unsigned int nr) +#if ENABLE_FEATURE_MINIX2 +static struct minix2_inode *get_inode2(unsigned 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; - } + get_inode_common(nr, inode->i_mode); return inode; } #endif static void check_root(void) { - struct minix_inode *inode = Inode + ROOT_INO; + struct minix1_inode *inode = Inode1 + MINIX_ROOT_INO; if (!inode || !S_ISDIR(inode->i_mode)) die("root inode isn't a directory"); } -#ifdef BB_FEATURE_MINIX2 +#if ENABLE_FEATURE_MINIX2 static void check_root2(void) { - struct minix2_inode *inode = Inode2 + ROOT_INO; + struct minix2_inode *inode = Inode2 + MINIX_ROOT_INO; if (!inode || !S_ISDIR(inode->i_mode)) die("root inode isn't a directory"); } +#else +void check_root2(void); #endif -static int add_zone(unsigned short *znr, int *corrected) +static int add_zone_common(int block, smallint *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("'."); + printf("Already used block is reused in file '%s'. ", + current_name); if (ask("Clear", 1)) { - *znr = 0; block = 0; *corrected = 1; + return -1; /* "please zero out *znr" */ } } - if (!block) - return 0; if (!zone_in_use(block)) { - printf("Block %d in file `", block); - print_current_name(); - printf("' 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); } @@ -858,144 +801,141 @@ static int add_zone(unsigned short *znr, int *corrected) return block; } -#ifdef BB_FEATURE_MINIX2 -static int add_zone2(unsigned int *znr, int *corrected) +static int add_zone(uint16_t *znr, smallint *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; - } + block = check_zone_nr(znr, corrected); + block = add_zone_common(block, corrected); + if (block == -1) { + *znr = 0; + block = 0; } - 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); + return block; +} + +#if ENABLE_FEATURE_MINIX2 +static int add_zone2(uint32_t *znr, smallint *corrected) +{ + int block; + + block = check_zone_nr2(znr, corrected); + block = add_zone_common(block, corrected); + if (block == -1) { + *znr = 0; + block = 0; } - if (!++zone_count[block]) - zone_count[block]--; return block; } #endif -static void add_zone_ind(unsigned short *znr, int *corrected) +static void add_zone_ind(uint16_t *znr, smallint *corrected) { - static char blk[BLOCK_SIZE]; - int i, chg_blk = 0; + int i; int block; + smallint chg_blk = 0; block = add_zone(znr, corrected); if (!block) return; - read_block(block, blk); + read_block(block, add_zone_ind_blk); for (i = 0; i < (BLOCK_SIZE >> 1); i++) - add_zone(i + (unsigned short *) blk, &chg_blk); + add_zone(i + (uint16_t *) add_zone_ind_blk, &chg_blk); if (chg_blk) - write_block(block, blk); + write_block(block, add_zone_ind_blk); } -#ifdef BB_FEATURE_MINIX2 -static void add_zone_ind2(unsigned int *znr, int *corrected) +#if ENABLE_FEATURE_MINIX2 +static void add_zone_ind2(uint32_t *znr, smallint *corrected) { - static char blk[BLOCK_SIZE]; - int i, chg_blk = 0; + int i; int block; + smallint chg_blk = 0; block = add_zone2(znr, corrected); if (!block) return; - read_block(block, blk); + read_block(block, add_zone_ind_blk); for (i = 0; i < BLOCK_SIZE >> 2; i++) - add_zone2(i + (unsigned int *) blk, &chg_blk); + add_zone2(i + (uint32_t *) add_zone_ind_blk, &chg_blk); if (chg_blk) - write_block(block, blk); + write_block(block, add_zone_ind_blk); } #endif -static void add_zone_dind(unsigned short *znr, int *corrected) +static void add_zone_dind(uint16_t *znr, smallint *corrected) { - static char blk[BLOCK_SIZE]; - int i, blk_chg = 0; + int i; int block; + smallint chg_blk = 0; block = add_zone(znr, corrected); if (!block) return; - read_block(block, blk); + read_block(block, add_zone_dind_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); + add_zone_ind(i + (uint16_t *) add_zone_dind_blk, &chg_blk); + if (chg_blk) + write_block(block, add_zone_dind_blk); } -#ifdef BB_FEATURE_MINIX2 -static void add_zone_dind2(unsigned int *znr, int *corrected) +#if ENABLE_FEATURE_MINIX2 +static void add_zone_dind2(uint32_t *znr, smallint *corrected) { - static char blk[BLOCK_SIZE]; - int i, blk_chg = 0; + int i; int block; + smallint chg_blk = 0; block = add_zone2(znr, corrected); if (!block) return; - read_block(block, blk); + read_block(block, add_zone_dind_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); + add_zone_ind2(i + (uint32_t *) add_zone_dind_blk, &chg_blk); + if (chg_blk) + write_block(block, add_zone_dind_blk); } -static void add_zone_tind2(unsigned int *znr, int *corrected) +static void add_zone_tind2(uint32_t *znr, smallint *corrected) { - static char blk[BLOCK_SIZE]; - int i, blk_chg = 0; + int i; int block; + smallint chg_blk = 0; block = add_zone2(znr, corrected); if (!block) return; - read_block(block, blk); + read_block(block, add_zone_tind_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); + add_zone_dind2(i + (uint32_t *) add_zone_tind_blk, &chg_blk); + if (chg_blk) + write_block(block, add_zone_tind_blk); } #endif -static void check_zones(unsigned int i) +static void check_zones(unsigned i) { - struct minix_inode *inode; + struct minix1_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; + inode = Inode1 + 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) +#if ENABLE_FEATURE_MINIX2 +static void check_zones2(unsigned i) { struct minix2_inode *inode; @@ -1015,163 +955,133 @@ static void check_zones2(unsigned int i) } #endif -static void check_file(struct minix_inode *dir, unsigned int offset) +static void check_file(struct minix1_inode *dir, unsigned offset) { - static char blk[BLOCK_SIZE]; - struct minix_inode *inode; + struct minix1_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); + read_block(block, check_file_blk); + name = check_file_blk + (offset % BLOCK_SIZE) + 2; + ino = *(uint16_t *) (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); + printf("%s contains a bad inode number for file '%.*s'. ", + current_name, namelen, name); + if (ask("Remove", 1)) { + *(uint16_t *) (name - 2) = 0; + write_block(block, check_file_blk); } ino = 0; } - if (name_depth < MAX_DEPTH) - strncpy(name_list[name_depth], name, namelen); - name_depth++; + push_filename(name); inode = get_inode(ino); - name_depth--; + pop_filename(); if (!offset) { - if (!inode || strcmp(".", name)) { - print_current_name(); - printf(": bad directory: '.' isn't first\n"); - errors_uncorrected = 1; - } else + if (inode && LONE_CHAR(name, '.')) return; + printf("%s: bad directory: '.' isn't first\n", current_name); + errors_uncorrected = 1; } if (offset == dirsize) { - if (!inode || strcmp("..", name)) { - print_current_name(); - printf(": bad directory: '..' isn't second\n"); - errors_uncorrected = 1; - } else + if (inode && strcmp("..", name) == 0) return; + printf("%s: bad directory: '..' isn't second\n", current_name); + errors_uncorrected = 1; } if (!inode) return; - if (name_depth < MAX_DEPTH) - strncpy(name_list[name_depth], name, namelen); - name_depth++; - if (list) { - if (verbose) + push_filename(name); + if (OPT_list) { + if (OPT_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"); + printf("%s%s\n", current_name, S_ISDIR(inode->i_mode) ? ":" : ""); } check_zones(ino); if (inode && S_ISDIR(inode->i_mode)) recursive_check(ino); - name_depth--; - return; + pop_filename(); } -#ifdef BB_FEATURE_MINIX2 -static void check_file2(struct minix2_inode *dir, unsigned int offset) +#if ENABLE_FEATURE_MINIX2 +static void check_file2(struct minix2_inode *dir, unsigned 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); + read_block(block, check_file_blk); + name = check_file_blk + (offset % BLOCK_SIZE) + 2; + ino = *(uint16_t *) (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); + printf("%s contains a bad inode number for file '%.*s'. ", + current_name, namelen, name); + if (ask("Remove", 1)) { + *(uint16_t *) (name - 2) = 0; + write_block(block, check_file_blk); } ino = 0; } - if (name_depth < MAX_DEPTH) - strncpy(name_list[name_depth], name, namelen); - name_depth++; + push_filename(name); inode = get_inode2(ino); - name_depth--; + pop_filename(); if (!offset) { - if (!inode || strcmp(".", name)) { - print_current_name(); - printf(": bad directory: '.' isn't first\n"); - errors_uncorrected = 1; - } else + if (inode && LONE_CHAR(name, '.')) return; + printf("%s: bad directory: '.' isn't first\n", current_name); + errors_uncorrected = 1; } if (offset == dirsize) { - if (!inode || strcmp("..", name)) { - print_current_name(); - printf(": bad directory: '..' isn't second\n"); - errors_uncorrected = 1; - } else + if (inode && strcmp("..", name) == 0) return; + printf("%s: bad directory: '..' isn't second\n", current_name); + errors_uncorrected = 1; } if (!inode) return; - name_depth++; - if (list) { - if (verbose) + push_filename(name); + if (OPT_list) { + if (OPT_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"); + printf("%s%s\n", current_name, S_ISDIR(inode->i_mode) ? ":" : ""); } check_zones2(ino); if (inode && S_ISDIR(inode->i_mode)) recursive_check2(ino); - name_depth--; - return; + pop_filename(); } #endif -static void recursive_check(unsigned int ino) +static void recursive_check(unsigned ino) { - struct minix_inode *dir; - unsigned int offset; + struct minix1_inode *dir; + unsigned offset; - dir = Inode + ino; + dir = Inode1 + ino; if (!S_ISDIR(dir->i_mode)) die("internal error"); if (dir->i_size < 2 * dirsize) { - print_current_name(); - printf(": bad directory: size<32"); + printf("%s: bad directory: size<32", current_name); 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) +#if ENABLE_FEATURE_MINIX2 +static void recursive_check2(unsigned ino) { struct minix2_inode *dir; - unsigned int offset; + unsigned 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"); + printf("%s: bad directory: size<32", current_name); errors_uncorrected = 1; } for (offset = 0; offset < dir->i_size; offset += dirsize) @@ -1181,11 +1091,10 @@ static void recursive_check2(unsigned int ino) static int bad_zone(int i) { - char buffer[1024]; + char buffer[BLOCK_SIZE]; - 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)); + xlseek(dev_fd, BLOCK_SIZE * i, SEEK_SET); + return (BLOCK_SIZE != full_read(dev_fd, buffer, BLOCK_SIZE)); } static void check_counts(void) @@ -1193,59 +1102,60 @@ 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 (OPT_warn_mode && Inode1[i].i_mode && !inode_in_use(i)) { + printf("Inode %d has non-zero mode. ", i); if (ask("Clear", 1)) { - Inode[i].i_mode = 0; + Inode1[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.", - i, Inode[i].i_mode, Inode[i].i_nlinks, inode_count[i]); + if (Inode1[i].i_nlinks != inode_count[i]) { + printf("Inode %d (mode=%07o), i_nlinks=%d, counted=%d. ", + i, Inode1[i].i_mode, Inode1[i].i_nlinks, + inode_count[i]); if (ask("Set i_nlinks to count", 1)) { - Inode[i].i_nlinks = inode_count[i]; + Inode1[i].i_nlinks = inode_count[i]; changed = 1; } } } for (i = FIRSTZONE; i < ZONES; i++) { - if (zone_in_use(i) == zone_count[i]) + if ((zone_in_use(i) != 0) == zone_count[i]) continue; 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; } printf("Zone %d: %sin use, counted=%d\n", - i, zone_in_use(i) ? "" : "not ", zone_count[i]); + i, zone_in_use(i) ? "" : "not ", zone_count[i]); } } -#ifdef BB_FEATURE_MINIX2 +#if ENABLE_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 (OPT_warn_mode && Inode2[i].i_mode && !inode_in_use(i)) { + printf("Inode %d has non-zero mode. ", i); if (ask("Clear", 1)) { Inode2[i].i_mode = 0; changed = 1; @@ -1254,20 +1164,20 @@ static void check_counts2(void) 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.", - i, Inode2[i].i_mode, 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; @@ -1275,18 +1185,18 @@ static void check_counts2(void) } } for (i = FIRSTZONE; i < ZONES; i++) { - if (zone_in_use(i) == zone_count[i]) + if ((zone_in_use(i) != 0) == zone_count[i]) continue; 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; } printf("Zone %d: %sin use, counted=%d\n", - i, zone_in_use(i) ? "" : "not ", zone_count[i]); + i, zone_in_use(i) ? "" : "not ", zone_count[i]); } } #endif @@ -1295,197 +1205,117 @@ 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_zones(MINIX_ROOT_INO); + recursive_check(MINIX_ROOT_INO); check_counts(); } -#ifdef BB_FEATURE_MINIX2 +#if ENABLE_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_zones2(MINIX_ROOT_INO); + recursive_check2(MINIX_ROOT_INO); check_counts2(); } +#else +void check2(void); #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 fsck_minix_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int fsck_minix_main(int argc UNUSED_PARAM, char **argv) { - 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; + int retcode = 0; - if (name_list) { - for (i = 0; i < MAX_DEPTH; i++) { - if (name_list[i]) { - free(name_list[i]); - } - } - free(name_list); - } -} -#endif + xfunc_error_retval = 8; -extern int fsck_minix_main(int argc, char **argv) -{ - struct termios tmp; - int count; - int retcode = 0; + INIT_G(); - 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 + opt_complementary = "=1:ar"; /* one argument; -a assumes -r */ + getopt32(argv, OPTION_STR); + argv += optind; + device_name = argv[0]; - 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) { + check_mount(); /* trying to check a mounted filesystem? */ + if (OPT_manual) { 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(); + xmove_fd(xopen(device_name, OPT_repair ? O_RDWR : O_RDONLY), dev_fd); + + /*sync(); paranoia? */ 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 + * 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); + printf("%s: %s\n", applet_name, bb_banner); + + if (!(Super.s_state & MINIX_ERROR_FS) + && (Super.s_state & MINIX_VALID_FS) && !OPT_force + ) { + if (OPT_repair) + printf("%s is clean, check is skipped\n", device_name); + return 0; + } else if (OPT_force) + printf("Forcing filesystem check on %s\n", device_name); + else if (OPT_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); + if (OPT_manual) { + set_termios_to_raw(STDIN_FILENO, &sv_termios, 0); termios_set = 1; } -#ifdef BB_FEATURE_MINIX2 + if (version2) { check_root2(); check2(); - } else -#endif - { + } else { check_root(); check(); } - if (verbose) { - int i, free; - for (i = 1, free = 0; i <= INODES; i++) + if (OPT_verbose) { + int i, free_cnt; + + for (i = 1, free_cnt = 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++) + free_cnt++; + printf("\n%6u inodes used (%u%%)\n", (INODES - free_cnt), + 100 * (INODES - free_cnt) / INODES); + for (i = FIRSTZONE, free_cnt = 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); + free_cnt++; + printf("%6u zones used (%u%%)\n\n" + "%6u regular files\n" + "%6u directories\n" + "%6u character device files\n" + "%6u block device files\n" + "%6u links\n" + "%6u symbolic links\n" + "------\n" + "%6u 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"); - for (count = 0; count < 3; count++) - sync(); - } else if (repair) - write_super_block(); - - if (repair && !automatic) - tcsetattr(0, TCSANOW, &termios); + puts("FILE SYSTEM HAS BEEN CHANGED"); + sync(); + } else if (OPT_repair) + write_superblock(); + + if (OPT_manual) + tcsetattr_stdin_TCSANOW(&sv_termios); if (changed) retcode += 3;