| /* |
| * mkfs.minix.c - make a linux (minix) file-system. |
| * |
| * (C) 1991 Linus Torvalds. This file may be redistributed as per |
| * the Linux copyright. |
| */ |
| |
| /* |
| * DD.MM.YY |
| * |
| * 24.11.91 - Time began. Used the fsck sources to get started. |
| * |
| * 25.11.91 - Corrected some bugs. Added support for ".badblocks" |
| * The algorithm for ".badblocks" is a bit weird, but |
| * it should work. Oh, well. |
| * |
| * 25.01.92 - Added the -l option for getting the list of bad blocks |
| * out of a named file. (Dave Rivers, rivers@ponds.uucp) |
| * |
| * 28.02.92 - Added %-information when using -c. |
| * |
| * 28.02.93 - Added support for other namelengths than the original |
| * 14 characters so that I can test the new kernel routines.. |
| * |
| * 09.10.93 - Make exit status conform to that required by fsutil |
| * (Rik Faith, faith@cs.unc.edu) |
| * |
| * 31.10.93 - Added inode request feature, for backup floppies: use |
| * 32 inodes, for a news partition use more. |
| * (Scott Heavner, sdh@po.cwru.edu) |
| * |
| * 03.01.94 - Added support for file system valid flag. |
| * (Dr. Wettstein, greg%wind.uucp@plains.nodak.edu) |
| * |
| * 30.10.94 - Added support for v2 filesystem |
| * (Andreas Schwab, schwab@issan.informatik.uni-dortmund.de) |
| * |
| * 09.11.94 - Added test to prevent overwrite of mounted fs adapted |
| * from Theodore Ts'o's (tytso@athena.mit.edu) mke2fs |
| * program. (Daniel Quinlan, quinlan@yggdrasil.com) |
| * |
| * 03.20.95 - Clear first 512 bytes of filesystem to make certain that |
| * the filesystem is not misidentified as a MS-DOS FAT filesystem. |
| * (Daniel Quinlan, quinlan@yggdrasil.com) |
| * |
| * 02.07.96 - Added small patch from Russell King to make the program a |
| * good deal more portable (janl@math.uio.no) |
| * |
| * 06.29.11 - Overall cleanups for util-linux and v3 support |
| * Davidlohr Bueso <dave@gnu.org> |
| * |
| * Usage: mkfs [-c | -l filename ] [-12v3] [-nXX] [-iXX] device [size-in-blocks] |
| * |
| * -c for readablility checking (SLOW!) |
| * -l for getting a list of bad blocks from a file. |
| * -n for namelength (currently the kernel only uses 14 or 30) |
| * -i for number of inodes |
| * -1 for v1 filesystem |
| * -2,-v for v2 filesystem |
| * -3 for v3 filesystem |
| * |
| * 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 <stdio.h> |
| #include <time.h> |
| #include <unistd.h> |
| #include <string.h> |
| #include <signal.h> |
| #include <fcntl.h> |
| #include <ctype.h> |
| #include <stdlib.h> |
| #include <termios.h> |
| #include <sys/stat.h> |
| #include <mntent.h> |
| #include <getopt.h> |
| #include <err.h> |
| |
| #include "blkdev.h" |
| #include "minix_programs.h" |
| #include "nls.h" |
| #include "pathnames.h" |
| #include "bitops.h" |
| #include "exitcodes.h" |
| #include "strutils.h" |
| #include "all-io.h" |
| #include "closestream.h" |
| |
| #define MINIX_ROOT_INO 1 |
| #define MINIX_BAD_INO 2 |
| |
| #define TEST_BUFFER_BLOCKS 16 |
| #define MAX_GOOD_BLOCKS 512 |
| |
| #define MINIX_MAX_INODES 65535 |
| |
| /* |
| * Global variables used in minix_programs.h inline fuctions |
| */ |
| int fs_version = 1; |
| char *super_block_buffer; |
| |
| static char *inode_buffer = NULL; |
| |
| #define Inode (((struct minix_inode *) inode_buffer) - 1) |
| #define Inode2 (((struct minix2_inode *) inode_buffer) - 1) |
| |
| static char *program_name = "mkfs"; |
| static char *device_name; |
| static int DEV = -1; |
| static unsigned long long BLOCKS; |
| static int check; |
| static int badblocks; |
| |
| /* |
| * default (changed to 30, per Linus's |
| * suggestion, Sun Nov 21 08:05:07 1993) |
| * This should be changed in the future to 60, |
| * since v3 needs to be the default nowadays (2011) |
| */ |
| static size_t namelen = 30; |
| static size_t dirsize = 32; |
| static int magic = MINIX_SUPER_MAGIC2; |
| |
| static char root_block[MINIX_BLOCK_SIZE]; |
| |
| static char boot_block_buffer[512]; |
| |
| static unsigned short good_blocks_table[MAX_GOOD_BLOCKS]; |
| static int used_good_blocks; |
| static unsigned long req_nr_inodes; |
| |
| |
| static char *inode_map; |
| static char *zone_map; |
| |
| #define zone_in_use(x) (isset(zone_map,(x)-get_first_zone()+1) != 0) |
| |
| #define mark_inode(x) (setbit(inode_map,(x))) |
| #define unmark_inode(x) (clrbit(inode_map,(x))) |
| |
| #define mark_zone(x) (setbit(zone_map,(x)-get_first_zone()+1)) |
| #define unmark_zone(x) (clrbit(zone_map,(x)-get_first_zone()+1)) |
| |
| |
| static void __attribute__((__noreturn__)) |
| usage(void) { |
| errx(MKFS_EX_USAGE, _("Usage: %s [-c | -l filename] [-nXX] [-iXX] /dev/name [blocks]"), |
| program_name); |
| } |
| |
| /* |
| * Check to make certain that our new filesystem won't be created on |
| * an already mounted partition. Code adapted from mke2fs, Copyright |
| * (C) 1994 Theodore Ts'o. Also licensed under GPL. |
| */ |
| static void check_mount(void) { |
| FILE * f; |
| struct mntent * mnt; |
| |
| if ((f = setmntent (_PATH_MOUNTED, "r")) == NULL) |
| return; |
| while ((mnt = getmntent (f)) != NULL) |
| if (strcmp (device_name, mnt->mnt_fsname) == 0) |
| break; |
| endmntent (f); |
| if (!mnt) |
| return; |
| |
| errx(MKFS_EX_ERROR, _("%s is mounted; will not make a filesystem here!"), |
| device_name); |
| } |
| |
| static void super_set_state(void) |
| { |
| switch (fs_version) { |
| case 1: |
| case 2: |
| Super.s_state |= MINIX_VALID_FS; |
| Super.s_state &= ~MINIX_ERROR_FS; |
| break; |
| default: /* v3 */ |
| break; |
| } |
| } |
| |
| static void write_tables(void) { |
| unsigned long imaps = get_nimaps(); |
| unsigned long zmaps = get_nzmaps(); |
| size_t buffsz = get_inode_buffer_size(); |
| |
| /* Mark the super block valid. */ |
| super_set_state(); |
| |
| if (lseek(DEV, 0, SEEK_SET)) |
| err(MKFS_EX_ERROR, _("%s: seek to boot block failed " |
| " in write_tables"), device_name); |
| if (write_all(DEV, boot_block_buffer, 512)) |
| err(MKFS_EX_ERROR, _("%s: unable to clear boot sector"), device_name); |
| if (MINIX_BLOCK_SIZE != lseek(DEV, MINIX_BLOCK_SIZE, SEEK_SET)) |
| err(MKFS_EX_ERROR, _("%s: seek failed in write_tables"), device_name); |
| |
| if (write_all(DEV, super_block_buffer, MINIX_BLOCK_SIZE)) |
| err(MKFS_EX_ERROR, _("%s: unable to write super-block"), device_name); |
| |
| if (write_all(DEV, inode_map, imaps * MINIX_BLOCK_SIZE)) |
| err(MKFS_EX_ERROR, _("%s: unable to write inode map"), device_name); |
| |
| if (write_all(DEV, zone_map, zmaps * MINIX_BLOCK_SIZE)) |
| err(MKFS_EX_ERROR, _("%s: unable to write zone map"), device_name); |
| |
| if (write_all(DEV, inode_buffer, buffsz)) |
| err(MKFS_EX_ERROR, _("%s: unable to write inodes"), device_name); |
| } |
| |
| static void write_block(int blk, char * buffer) { |
| if (blk*MINIX_BLOCK_SIZE != lseek(DEV, blk*MINIX_BLOCK_SIZE, SEEK_SET)) |
| errx(MKFS_EX_ERROR, _("%s: seek failed in write_block"), device_name); |
| |
| if (write_all(DEV, buffer, MINIX_BLOCK_SIZE)) |
| errx(MKFS_EX_ERROR, _("%s: write failed in write_block"), device_name); |
| } |
| |
| static int get_free_block(void) { |
| unsigned int blk; |
| unsigned int zones = get_nzones(); |
| unsigned int first_zone = get_first_zone(); |
| |
| if (used_good_blocks+1 >= MAX_GOOD_BLOCKS) |
| errx(MKFS_EX_ERROR, _("%s: too many bad blocks"), device_name); |
| if (used_good_blocks) |
| blk = good_blocks_table[used_good_blocks-1]+1; |
| else |
| blk = first_zone; |
| while (blk < zones && zone_in_use(blk)) |
| blk++; |
| if (blk >= zones) |
| errx(MKFS_EX_ERROR, _("%s: not enough good blocks"), device_name); |
| good_blocks_table[used_good_blocks] = blk; |
| used_good_blocks++; |
| return blk; |
| } |
| |
| static void mark_good_blocks(void) { |
| int blk; |
| |
| for (blk=0 ; blk < used_good_blocks ; blk++) |
| mark_zone(good_blocks_table[blk]); |
| } |
| |
| static inline int next(unsigned long zone) { |
| unsigned long zones = get_nzones(); |
| unsigned long first_zone = get_first_zone(); |
| |
| if (!zone) |
| zone = first_zone-1; |
| while (++zone < zones) |
| if (zone_in_use(zone)) |
| return zone; |
| return 0; |
| } |
| |
| static void make_bad_inode_v1(void) |
| { |
| struct minix_inode * inode = &Inode[MINIX_BAD_INO]; |
| int i,j,zone; |
| int ind=0,dind=0; |
| unsigned short ind_block[MINIX_BLOCK_SIZE>>1]; |
| unsigned short dind_block[MINIX_BLOCK_SIZE>>1]; |
| |
| #define NEXT_BAD (zone = next(zone)) |
| |
| if (!badblocks) |
| return; |
| mark_inode(MINIX_BAD_INO); |
| inode->i_nlinks = 1; |
| inode->i_time = time(NULL); |
| inode->i_mode = S_IFREG + 0000; |
| inode->i_size = badblocks*MINIX_BLOCK_SIZE; |
| zone = next(0); |
| for (i=0 ; i<7 ; i++) { |
| inode->i_zone[i] = zone; |
| if (!NEXT_BAD) |
| goto end_bad; |
| } |
| inode->i_zone[7] = ind = get_free_block(); |
| memset(ind_block,0,MINIX_BLOCK_SIZE); |
| for (i=0 ; i<512 ; i++) { |
| ind_block[i] = zone; |
| if (!NEXT_BAD) |
| goto end_bad; |
| } |
| inode->i_zone[8] = dind = get_free_block(); |
| memset(dind_block,0,MINIX_BLOCK_SIZE); |
| for (i=0 ; i<512 ; i++) { |
| write_block(ind,(char *) ind_block); |
| dind_block[i] = ind = get_free_block(); |
| memset(ind_block,0,MINIX_BLOCK_SIZE); |
| for (j=0 ; j<512 ; j++) { |
| ind_block[j] = zone; |
| if (!NEXT_BAD) |
| goto end_bad; |
| } |
| } |
| errx(MKFS_EX_ERROR, _("%s: too many bad blocks"), device_name); |
| end_bad: |
| if (ind) |
| write_block(ind, (char *) ind_block); |
| if (dind) |
| write_block(dind, (char *) dind_block); |
| } |
| |
| static void make_bad_inode_v2_v3 (void) |
| { |
| struct minix2_inode *inode = &Inode2[MINIX_BAD_INO]; |
| int i, j, zone; |
| int ind = 0, dind = 0; |
| unsigned long ind_block[MINIX_BLOCK_SIZE >> 2]; |
| unsigned long dind_block[MINIX_BLOCK_SIZE >> 2]; |
| |
| if (!badblocks) |
| return; |
| mark_inode (MINIX_BAD_INO); |
| inode->i_nlinks = 1; |
| inode->i_atime = inode->i_mtime = inode->i_ctime = time (NULL); |
| inode->i_mode = S_IFREG + 0000; |
| inode->i_size = badblocks * MINIX_BLOCK_SIZE; |
| zone = next (0); |
| for (i = 0; i < 7; i++) { |
| inode->i_zone[i] = zone; |
| if (!NEXT_BAD) |
| goto end_bad; |
| } |
| inode->i_zone[7] = ind = get_free_block (); |
| memset (ind_block, 0, MINIX_BLOCK_SIZE); |
| for (i = 0; i < 256; i++) { |
| ind_block[i] = zone; |
| if (!NEXT_BAD) |
| goto end_bad; |
| } |
| inode->i_zone[8] = dind = get_free_block (); |
| memset (dind_block, 0, MINIX_BLOCK_SIZE); |
| for (i = 0; i < 256; i++) { |
| write_block (ind, (char *) ind_block); |
| dind_block[i] = ind = get_free_block (); |
| memset (ind_block, 0, MINIX_BLOCK_SIZE); |
| for (j = 0; j < 256; j++) { |
| ind_block[j] = zone; |
| if (!NEXT_BAD) |
| goto end_bad; |
| } |
| } |
| /* Could make triple indirect block here */ |
| errx(MKFS_EX_ERROR, _("%s: too many bad blocks"), device_name); |
| end_bad: |
| if (ind) |
| write_block (ind, (char *) ind_block); |
| if (dind) |
| write_block (dind, (char *) dind_block); |
| } |
| |
| static void make_bad_inode(void) |
| { |
| if (fs_version < 2) { |
| make_bad_inode_v1(); |
| return; |
| } |
| make_bad_inode_v2_v3(); |
| } |
| |
| static void make_root_inode_v1(void) { |
| struct minix_inode * inode = &Inode[MINIX_ROOT_INO]; |
| |
| mark_inode(MINIX_ROOT_INO); |
| inode->i_zone[0] = get_free_block(); |
| inode->i_nlinks = 2; |
| inode->i_time = time(NULL); |
| if (badblocks) |
| inode->i_size = 3*dirsize; |
| else { |
| root_block[2*dirsize] = '\0'; |
| root_block[2*dirsize+1] = '\0'; |
| inode->i_size = 2*dirsize; |
| } |
| inode->i_mode = S_IFDIR + 0755; |
| inode->i_uid = getuid(); |
| if (inode->i_uid) |
| inode->i_gid = getgid(); |
| write_block(inode->i_zone[0],root_block); |
| } |
| |
| static void make_root_inode_v2_v3 (void) { |
| struct minix2_inode *inode = &Inode2[MINIX_ROOT_INO]; |
| |
| mark_inode (MINIX_ROOT_INO); |
| inode->i_zone[0] = get_free_block (); |
| inode->i_nlinks = 2; |
| inode->i_atime = inode->i_mtime = inode->i_ctime = time (NULL); |
| |
| if (badblocks) |
| inode->i_size = 3 * dirsize; |
| else { |
| root_block[2 * dirsize] = '\0'; |
| inode->i_size = 2 * dirsize; |
| } |
| |
| inode->i_mode = S_IFDIR + 0755; |
| inode->i_uid = getuid(); |
| if (inode->i_uid) |
| inode->i_gid = getgid(); |
| write_block (inode->i_zone[0], root_block); |
| } |
| |
| static void make_root_inode(void) |
| { |
| if (fs_version < 2) { |
| make_root_inode_v1(); |
| return; |
| } |
| make_root_inode_v2_v3(); |
| } |
| |
| static void super_set_nzones(void) |
| { |
| switch (fs_version) { |
| case 3: |
| Super3.s_zones = BLOCKS; |
| break; |
| case 2: |
| Super.s_zones = BLOCKS; |
| break; |
| default: /* v1 */ |
| Super.s_nzones = BLOCKS; |
| break; |
| } |
| } |
| |
| static void super_init_maxsize(void) |
| { |
| switch (fs_version) { |
| case 3: |
| Super3.s_max_size = 2147483647L; |
| break; |
| case 2: |
| Super.s_max_size = 0x7fffffff; |
| break; |
| default: /* v1 */ |
| Super.s_max_size = (7+512+512*512)*1024; |
| break; |
| } |
| } |
| |
| static void super_set_map_blocks(unsigned long inodes) |
| { |
| switch (fs_version) { |
| case 3: |
| Super3.s_imap_blocks = UPPER(inodes + 1, BITS_PER_BLOCK); |
| Super3.s_zmap_blocks = UPPER(BLOCKS - (1+get_nimaps()+inode_blocks()), |
| BITS_PER_BLOCK+1); |
| Super3.s_firstdatazone = first_zone_data(); |
| break; |
| default: |
| Super.s_imap_blocks = UPPER(inodes + 1, BITS_PER_BLOCK); |
| Super.s_zmap_blocks = UPPER(BLOCKS - (1+get_nimaps()+inode_blocks()), |
| BITS_PER_BLOCK+1); |
| Super.s_firstdatazone = first_zone_data(); |
| break; |
| } |
| } |
| |
| static void super_set_magic(void) |
| { |
| switch (fs_version) { |
| case 3: |
| Super3.s_magic = magic; |
| break; |
| default: |
| Super.s_magic = magic; |
| break; |
| } |
| } |
| |
| static void setup_tables(void) { |
| unsigned long inodes, zmaps, imaps, zones, i; |
| |
| super_block_buffer = calloc(1, MINIX_BLOCK_SIZE); |
| if (!super_block_buffer) |
| err(MKFS_EX_ERROR, _("%s: unable to allocate buffer for superblock"), |
| device_name); |
| |
| memset(boot_block_buffer,0,512); |
| super_set_magic(); |
| |
| if (fs_version == 3) { |
| Super3.s_log_zone_size = 0; |
| Super3.s_blocksize = MINIX_BLOCK_SIZE; |
| } |
| else { |
| Super.s_log_zone_size = 0; |
| } |
| |
| super_init_maxsize(); |
| super_set_nzones(); |
| zones = get_nzones(); |
| |
| /* some magic nrs: 1 inode / 3 blocks */ |
| if ( req_nr_inodes == 0 ) |
| inodes = BLOCKS/3; |
| else |
| inodes = req_nr_inodes; |
| /* Round up inode count to fill block size */ |
| if (fs_version == 2 || fs_version == 3) |
| inodes = ((inodes + MINIX2_INODES_PER_BLOCK - 1) & |
| ~(MINIX2_INODES_PER_BLOCK - 1)); |
| else |
| inodes = ((inodes + MINIX_INODES_PER_BLOCK - 1) & |
| ~(MINIX_INODES_PER_BLOCK - 1)); |
| |
| if (fs_version == 3) |
| Super3.s_ninodes = inodes; |
| else { |
| Super.s_ninodes = inodes; |
| if (inodes > MINIX_MAX_INODES) |
| inodes = MINIX_MAX_INODES; |
| } |
| |
| super_set_map_blocks(inodes); |
| imaps = get_nimaps(); |
| zmaps = get_nzmaps(); |
| |
| inode_map = malloc(imaps * MINIX_BLOCK_SIZE); |
| zone_map = malloc(zmaps * MINIX_BLOCK_SIZE); |
| if (!inode_map || !zone_map) |
| err(MKFS_EX_ERROR, _("%s: unable to allocate buffers for maps"), |
| device_name); |
| memset(inode_map,0xff,imaps * MINIX_BLOCK_SIZE); |
| memset(zone_map,0xff,zmaps * MINIX_BLOCK_SIZE); |
| for (i = get_first_zone() ; i<zones ; i++) |
| unmark_zone(i); |
| for (i = MINIX_ROOT_INO ; i<=inodes; i++) |
| unmark_inode(i); |
| inode_buffer = malloc(get_inode_buffer_size()); |
| if (!inode_buffer) |
| err(MKFS_EX_ERROR, _("%s: unable to allocate buffer for inodes"), |
| device_name); |
| memset(inode_buffer,0, get_inode_buffer_size()); |
| printf(P_("%lu inode\n", "%lu inodes\n", inodes), inodes); |
| printf(P_("%lu block\n", "%lu blocks\n", zones), zones); |
| printf(_("Firstdatazone=%jd (%jd)\n"), get_first_zone(), first_zone_data()); |
| printf(_("Zonesize=%zu\n"), (size_t) MINIX_BLOCK_SIZE << get_zone_size()); |
| printf(_("Maxsize=%zu\n\n"),get_max_size()); |
| } |
| |
| /* |
| * Perform a test of a block; return the number of |
| * blocks readable/writeable. |
| */ |
| static size_t do_check(char * buffer, int try, unsigned int current_block) { |
| ssize_t got; |
| |
| /* Seek to the correct loc. */ |
| if (lseek(DEV, current_block * MINIX_BLOCK_SIZE, SEEK_SET) != |
| current_block * MINIX_BLOCK_SIZE ) |
| err(MKFS_EX_ERROR, _("%s: seek failed during testing of blocks"), |
| device_name); |
| |
| /* Try the read */ |
| got = read(DEV, buffer, try * MINIX_BLOCK_SIZE); |
| if (got < 0) got = 0; |
| if (got & (MINIX_BLOCK_SIZE - 1 )) { |
| printf(_("Weird values in do_check: probably bugs\n")); |
| } |
| got /= MINIX_BLOCK_SIZE; |
| return got; |
| } |
| |
| static unsigned int currently_testing = 0; |
| |
| static void alarm_intr(int alnum __attribute__ ((__unused__))) { |
| unsigned long zones = get_nzones(); |
| |
| if (currently_testing >= zones) |
| return; |
| signal(SIGALRM,alarm_intr); |
| alarm(5); |
| if (!currently_testing) |
| return; |
| printf("%d ...", currently_testing); |
| fflush(stdout); |
| } |
| |
| static void check_blocks(void) { |
| size_t try, got; |
| static char buffer[MINIX_BLOCK_SIZE * TEST_BUFFER_BLOCKS]; |
| unsigned long zones = get_nzones(); |
| unsigned long first_zone = get_first_zone(); |
| |
| currently_testing=0; |
| signal(SIGALRM,alarm_intr); |
| alarm(5); |
| while (currently_testing < zones) { |
| if (lseek(DEV,currently_testing*MINIX_BLOCK_SIZE,SEEK_SET) != |
| currently_testing*MINIX_BLOCK_SIZE) |
| errx(MKFS_EX_ERROR, _("%s: seek failed in check_blocks"), |
| device_name); |
| try = TEST_BUFFER_BLOCKS; |
| if (currently_testing + try > zones) |
| try = zones-currently_testing; |
| got = do_check(buffer, try, currently_testing); |
| currently_testing += got; |
| if (got == try) |
| continue; |
| if (currently_testing < first_zone) |
| errx(MKFS_EX_ERROR, _("%s: bad blocks before data-area: " |
| "cannot make fs"), device_name); |
| mark_zone(currently_testing); |
| badblocks++; |
| currently_testing++; |
| } |
| if (badblocks > 0) |
| printf(P_("%d bad block\n", "%d bad blocks\n", badblocks), badblocks); |
| } |
| |
| static void get_list_blocks(char *filename) { |
| FILE *listfile; |
| unsigned long blockno; |
| |
| listfile = fopen(filename,"r"); |
| if (listfile == NULL) |
| err(MKFS_EX_ERROR, _("%s: can't open file of bad blocks"), |
| device_name); |
| |
| while (!feof(listfile)) { |
| if (fscanf(listfile,"%lu\n", &blockno) != 1) { |
| printf(_("badblock number input error on line %d\n"), badblocks + 1); |
| errx(MKFS_EX_ERROR, _("%s: cannot read badblocks file"), |
| device_name); |
| } |
| mark_zone(blockno); |
| badblocks++; |
| } |
| fclose(listfile); |
| |
| if (badblocks > 0) |
| printf(P_("%d bad block\n", "%d bad blocks\n", badblocks), badblocks); |
| } |
| |
| int main(int argc, char ** argv) { |
| int i; |
| char * tmp; |
| struct stat statbuf; |
| char * listfile = NULL; |
| char * p; |
| |
| if (argc && *argv) |
| program_name = *argv; |
| if ((p = strrchr(program_name, '/')) != NULL) |
| program_name = p+1; |
| |
| setlocale(LC_ALL, ""); |
| bindtextdomain(PACKAGE, LOCALEDIR); |
| textdomain(PACKAGE); |
| atexit(close_stdout); |
| |
| if (argc == 2 && |
| (!strcmp(argv[1], "-V") || !strcmp(argv[1], "--version"))) { |
| printf(UTIL_LINUX_VERSION); |
| exit(MKFS_EX_OK); |
| } |
| |
| if (INODE_SIZE * MINIX_INODES_PER_BLOCK != MINIX_BLOCK_SIZE) |
| errx(MKFS_EX_ERROR, _("%s: bad inode size"), device_name); |
| if (INODE2_SIZE * MINIX2_INODES_PER_BLOCK != MINIX_BLOCK_SIZE) |
| errx(MKFS_EX_ERROR, _("%s: bad inode size"), device_name); |
| |
| opterr = 0; |
| while ((i = getopt(argc, argv, "ci:l:n:v123")) != -1) |
| switch (i) { |
| case 'c': |
| check=1; break; |
| case 'i': |
| req_nr_inodes = strtoul_or_err(optarg, |
| _("failed to parse number of inodes")); |
| break; |
| case 'l': |
| listfile = optarg; break; |
| case 'n': |
| i = strtoul_or_err(optarg, |
| _("failed to parse maximum length of filenames")); |
| if (i == 14) |
| magic = MINIX_SUPER_MAGIC; |
| else if (i == 30) |
| magic = MINIX_SUPER_MAGIC2; |
| else |
| usage(); |
| namelen = i; |
| dirsize = i+2; |
| break; |
| case '1': |
| fs_version = 1; |
| break; |
| case '2': |
| case 'v': /* kept for backwards compatiblitly */ |
| fs_version = 2; |
| break; |
| case '3': |
| fs_version = 3; |
| namelen = 60; |
| dirsize = 64; |
| break; |
| default: |
| usage(); |
| } |
| argc -= optind; |
| argv += optind; |
| if (argc > 0 && !device_name) { |
| device_name = argv[0]; |
| argc--; |
| argv++; |
| } |
| if (argc > 0) |
| BLOCKS = strtoul_or_err(argv[0], _("failed to parse number of blocks")); |
| |
| if (!device_name) { |
| usage(); |
| } |
| check_mount(); /* is it already mounted? */ |
| tmp = root_block; |
| if (fs_version == 3) { |
| *(uint32_t *)tmp = 1; |
| strcpy(tmp+4,"."); |
| tmp += dirsize; |
| *(uint32_t *)tmp = 1; |
| strcpy(tmp+4,".."); |
| tmp += dirsize; |
| *(uint32_t *)tmp = 2; |
| strcpy(tmp+4, ".badblocks"); |
| } else { |
| *(uint16_t *)tmp = 1; |
| strcpy(tmp+2,"."); |
| tmp += dirsize; |
| *(uint16_t *)tmp = 1; |
| strcpy(tmp+2,".."); |
| tmp += dirsize; |
| *(uint16_t *)tmp = 2; |
| strcpy(tmp+2, ".badblocks"); |
| } |
| if (stat(device_name, &statbuf) < 0) |
| err(MKFS_EX_ERROR, _("stat of %s failed"), device_name); |
| if (S_ISBLK(statbuf.st_mode)) |
| DEV = open(device_name,O_RDWR | O_EXCL); |
| else |
| DEV = open(device_name,O_RDWR); |
| |
| if (DEV<0) |
| err(MKFS_EX_ERROR, _("cannot open %s"), device_name); |
| |
| if (S_ISBLK(statbuf.st_mode)) { |
| int sectorsize; |
| |
| if (blkdev_get_sector_size(DEV, §orsize) == -1) |
| sectorsize = DEFAULT_SECTOR_SIZE; /* kernel < 2.3.3 */ |
| |
| if (blkdev_is_misaligned(DEV)) |
| warnx(_("%s: device is misaligned"), device_name); |
| |
| if (MINIX_BLOCK_SIZE < sectorsize) |
| errx(MKFS_EX_ERROR, _("block size smaller than physical " |
| "sector size of %s"), device_name); |
| if (!BLOCKS) { |
| if (blkdev_get_size(DEV, &BLOCKS) == -1) |
| errx(MKFS_EX_ERROR, _("cannot determine size of %s"), |
| device_name); |
| BLOCKS /= MINIX_BLOCK_SIZE; |
| } |
| } else if (!S_ISBLK(statbuf.st_mode)) { |
| if (!BLOCKS) |
| BLOCKS = statbuf.st_size / MINIX_BLOCK_SIZE; |
| check=0; |
| } else if (statbuf.st_rdev == 0x0300 || statbuf.st_rdev == 0x0340) |
| errx(MKFS_EX_ERROR, _("will not try to make filesystem on '%s'"), device_name); |
| if (BLOCKS < 10) |
| errx(MKFS_EX_ERROR, _("%s: number of blocks too small"), device_name); |
| |
| if (fs_version == 3) |
| magic = MINIX3_SUPER_MAGIC; |
| else if (fs_version == 2) { |
| if (namelen == 14) |
| magic = MINIX2_SUPER_MAGIC; |
| else |
| magic = MINIX2_SUPER_MAGIC2; |
| } else /* fs_version == 1 */ |
| if (BLOCKS > MINIX_MAX_INODES) |
| BLOCKS = MINIX_MAX_INODES; |
| setup_tables(); |
| if (check) |
| check_blocks(); |
| else if (listfile) |
| get_list_blocks(listfile); |
| |
| make_root_inode(); |
| make_bad_inode(); |
| |
| mark_good_blocks(); |
| write_tables(); |
| if (close_fd(DEV) != 0) |
| err(MKFS_EX_ERROR, _("write failed")); |
| |
| return MKFS_EX_OK; |
| } |