[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/util-linux/mkfs_minix.c b/ap/app/busybox/src/util-linux/mkfs_minix.c
new file mode 100644
index 0000000..59d7d23
--- /dev/null
+++ b/ap/app/busybox/src/util-linux/mkfs_minix.c
@@ -0,0 +1,740 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * mkfs.c - make a linux (minix) file-system.
+ *
+ * (C) 1991 Linus Torvalds.
+ *
+ * Licensed under GPLv2, see file LICENSE in this source tree.
+ */
+
+/*
+ * 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)
+ *
+ * Usage: mkfs [-c | -l filename ] [-v] [-nXX] [-iXX] device [size-in-blocks]
+ *
+ * -c for readability 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
+ * -v for v2 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 :-).
+ *
+ * Modified for BusyBox by Erik Andersen <andersen@debian.org> --
+ * removed getopt based parser and added a hand rolled one.
+ */
+
+//usage:#define mkfs_minix_trivial_usage
+//usage: "[-c | -l FILE] [-nXX] [-iXX] BLOCKDEV [KBYTES]"
+//usage:#define mkfs_minix_full_usage "\n\n"
+//usage: "Make a MINIX filesystem\n"
+//usage: "\n -c Check device for bad blocks"
+//usage: "\n -n [14|30] Maximum length of filenames"
+//usage: "\n -i INODES Number of inodes for the filesystem"
+//usage: "\n -l FILE Read bad blocks list from FILE"
+//usage: "\n -v Make version 2 filesystem"
+
+#include "libbb.h"
+#include <mntent.h>
+
+#include "minix.h"
+
+/* Store the very same times/uids/gids for image consistency */
+#if 1
+# define CUR_TIME 0
+# define GETUID 0
+# define GETGID 0
+#else
+/* Was using this. Is it useful? NB: this will break testsuite */
+# define CUR_TIME time(NULL)
+# define GETUID getuid()
+# define GETGID getgid()
+#endif
+
+enum {
+ MAX_GOOD_BLOCKS = 512,
+ TEST_BUFFER_BLOCKS = 16,
+};
+
+#if !ENABLE_FEATURE_MINIX2
+enum { version2 = 0 };
+#endif
+
+enum { dev_fd = 3 };
+
+struct globals {
+#if ENABLE_FEATURE_MINIX2
+ smallint version2;
+#define version2 G.version2
+#endif
+ char *device_name;
+ uint32_t total_blocks;
+ int badblocks;
+ int namelen;
+ int dirsize;
+ int magic;
+ char *inode_buffer;
+ char *inode_map;
+ char *zone_map;
+ int used_good_blocks;
+ unsigned long req_nr_inodes;
+ unsigned currently_testing;
+
+ char root_block[BLOCK_SIZE];
+ char superblock_buffer[BLOCK_SIZE];
+ char boot_block_buffer[512];
+ unsigned short good_blocks_table[MAX_GOOD_BLOCKS];
+ /* check_blocks(): buffer[] was the biggest static in entire bbox */
+ char check_blocks_buffer[BLOCK_SIZE * TEST_BUFFER_BLOCKS];
+
+ unsigned short ind_block1[BLOCK_SIZE >> 1];
+ unsigned short dind_block1[BLOCK_SIZE >> 1];
+ unsigned long ind_block2[BLOCK_SIZE >> 2];
+ unsigned long dind_block2[BLOCK_SIZE >> 2];
+};
+#define G (*ptr_to_globals)
+#define INIT_G() do { \
+ SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
+} while (0)
+
+static ALWAYS_INLINE unsigned div_roundup(unsigned size, unsigned n)
+{
+ return (size + n-1) / n;
+}
+
+#define INODE_BUF1 (((struct minix1_inode*)G.inode_buffer) - 1)
+#define INODE_BUF2 (((struct minix2_inode*)G.inode_buffer) - 1)
+
+#define SB (*(struct minix_superblock*)G.superblock_buffer)
+
+#define SB_INODES (SB.s_ninodes)
+#define SB_IMAPS (SB.s_imap_blocks)
+#define SB_ZMAPS (SB.s_zmap_blocks)
+#define SB_FIRSTZONE (SB.s_firstdatazone)
+#define SB_ZONE_SIZE (SB.s_log_zone_size)
+#define SB_MAXSIZE (SB.s_max_size)
+#define SB_MAGIC (SB.s_magic)
+
+#if !ENABLE_FEATURE_MINIX2
+# define SB_ZONES (SB.s_nzones)
+# define INODE_BLOCKS div_roundup(SB_INODES, MINIX1_INODES_PER_BLOCK)
+#else
+# define SB_ZONES (version2 ? SB.s_zones : SB.s_nzones)
+# define INODE_BLOCKS div_roundup(SB_INODES, \
+ (version2 ? MINIX2_INODES_PER_BLOCK : MINIX1_INODES_PER_BLOCK))
+#endif
+
+#define INODE_BUFFER_SIZE (INODE_BLOCKS * BLOCK_SIZE)
+#define NORM_FIRSTZONE (2 + SB_IMAPS + SB_ZMAPS + INODE_BLOCKS)
+
+/* Before you ask "where they come from?": */
+/* setbit/clrbit are supplied by sys/param.h */
+
+static int minix_bit(const char* a, unsigned i)
+{
+ return a[i >> 3] & (1<<(i & 7));
+}
+
+static void minix_setbit(char *a, unsigned i)
+{
+ setbit(a, i);
+}
+static void minix_clrbit(char *a, unsigned i)
+{
+ clrbit(a, i);
+}
+
+/* Note: do not assume 0/1, it is 0/nonzero */
+#define zone_in_use(x) minix_bit(G.zone_map,(x)-SB_FIRSTZONE+1)
+/*#define inode_in_use(x) minix_bit(G.inode_map,(x))*/
+
+#define mark_inode(x) minix_setbit(G.inode_map,(x))
+#define unmark_inode(x) minix_clrbit(G.inode_map,(x))
+#define mark_zone(x) minix_setbit(G.zone_map,(x)-SB_FIRSTZONE+1)
+#define unmark_zone(x) minix_clrbit(G.zone_map,(x)-SB_FIRSTZONE+1)
+
+#ifndef BLKGETSIZE
+# define BLKGETSIZE _IO(0x12,96) /* return device size */
+#endif
+
+
+static long valid_offset(int fd, int offset)
+{
+ char ch;
+
+ if (lseek(fd, offset, SEEK_SET) < 0)
+ return 0;
+ if (read(fd, &ch, 1) < 1)
+ return 0;
+ return 1;
+}
+
+static int count_blocks(int fd)
+{
+ int high, low;
+
+ low = 0;
+ for (high = 1; valid_offset(fd, high); high *= 2)
+ low = high;
+
+ while (low < high - 1) {
+ const int mid = (low + high) / 2;
+
+ if (valid_offset(fd, mid))
+ low = mid;
+ else
+ high = mid;
+ }
+ valid_offset(fd, 0);
+ return (low + 1);
+}
+
+static int get_size(const char *file)
+{
+ int fd;
+ long size;
+
+ fd = xopen(file, O_RDWR);
+ if (ioctl(fd, BLKGETSIZE, &size) >= 0) {
+ close(fd);
+ return (size * 512);
+ }
+
+ size = count_blocks(fd);
+ close(fd);
+ return size;
+}
+
+static void write_tables(void)
+{
+ /* Mark the superblock valid. */
+ SB.s_state |= MINIX_VALID_FS;
+ SB.s_state &= ~MINIX_ERROR_FS;
+
+ msg_eol = "seek to 0 failed";
+ xlseek(dev_fd, 0, SEEK_SET);
+
+ msg_eol = "can't clear boot sector";
+ xwrite(dev_fd, G.boot_block_buffer, 512);
+
+ msg_eol = "seek to BLOCK_SIZE failed";
+ xlseek(dev_fd, BLOCK_SIZE, SEEK_SET);
+
+ msg_eol = "can't write superblock";
+ xwrite(dev_fd, G.superblock_buffer, BLOCK_SIZE);
+
+ msg_eol = "can't write inode map";
+ xwrite(dev_fd, G.inode_map, SB_IMAPS * BLOCK_SIZE);
+
+ msg_eol = "can't write zone map";
+ xwrite(dev_fd, G.zone_map, SB_ZMAPS * BLOCK_SIZE);
+
+ msg_eol = "can't write inodes";
+ xwrite(dev_fd, G.inode_buffer, INODE_BUFFER_SIZE);
+
+ msg_eol = "\n";
+}
+
+static void write_block(int blk, char *buffer)
+{
+ xlseek(dev_fd, blk * BLOCK_SIZE, SEEK_SET);
+ xwrite(dev_fd, buffer, BLOCK_SIZE);
+}
+
+static int get_free_block(void)
+{
+ int blk;
+
+ if (G.used_good_blocks + 1 >= MAX_GOOD_BLOCKS)
+ bb_error_msg_and_die("too many bad blocks");
+ if (G.used_good_blocks)
+ blk = G.good_blocks_table[G.used_good_blocks - 1] + 1;
+ else
+ blk = SB_FIRSTZONE;
+ while (blk < SB_ZONES && zone_in_use(blk))
+ blk++;
+ if (blk >= SB_ZONES)
+ bb_error_msg_and_die("not enough good blocks");
+ G.good_blocks_table[G.used_good_blocks] = blk;
+ G.used_good_blocks++;
+ return blk;
+}
+
+static void mark_good_blocks(void)
+{
+ int blk;
+
+ for (blk = 0; blk < G.used_good_blocks; blk++)
+ mark_zone(G.good_blocks_table[blk]);
+}
+
+static int next(int zone)
+{
+ if (!zone)
+ zone = SB_FIRSTZONE - 1;
+ while (++zone < SB_ZONES)
+ if (zone_in_use(zone))
+ return zone;
+ return 0;
+}
+
+static void make_bad_inode(void)
+{
+ struct minix1_inode *inode = &INODE_BUF1[MINIX_BAD_INO];
+ int i, j, zone;
+ int ind = 0, dind = 0;
+ /* moved to globals to reduce stack usage
+ unsigned short ind_block[BLOCK_SIZE >> 1];
+ unsigned short dind_block[BLOCK_SIZE >> 1];
+ */
+#define ind_block (G.ind_block1)
+#define dind_block (G.dind_block1)
+
+#define NEXT_BAD (zone = next(zone))
+
+ if (!G.badblocks)
+ return;
+ mark_inode(MINIX_BAD_INO);
+ inode->i_nlinks = 1;
+ /* BTW, setting this makes all images different */
+ /* it's harder to check for bugs then - diff isn't helpful :(... */
+ inode->i_time = CUR_TIME;
+ inode->i_mode = S_IFREG + 0000;
+ inode->i_size = G.badblocks * 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, 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, 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, BLOCK_SIZE);
+ for (j = 0; j < 512; j++) {
+ ind_block[j] = zone;
+ if (!NEXT_BAD)
+ goto end_bad;
+ }
+ }
+ bb_error_msg_and_die("too many bad blocks");
+ end_bad:
+ if (ind)
+ write_block(ind, (char *) ind_block);
+ if (dind)
+ write_block(dind, (char *) dind_block);
+#undef ind_block
+#undef dind_block
+}
+
+#if ENABLE_FEATURE_MINIX2
+static void make_bad_inode2(void)
+{
+ struct minix2_inode *inode = &INODE_BUF2[MINIX_BAD_INO];
+ int i, j, zone;
+ int ind = 0, dind = 0;
+ /* moved to globals to reduce stack usage
+ unsigned long ind_block[BLOCK_SIZE >> 2];
+ unsigned long dind_block[BLOCK_SIZE >> 2];
+ */
+#define ind_block (G.ind_block2)
+#define dind_block (G.dind_block2)
+
+ if (!G.badblocks)
+ return;
+ mark_inode(MINIX_BAD_INO);
+ inode->i_nlinks = 1;
+ inode->i_atime = inode->i_mtime = inode->i_ctime = CUR_TIME;
+ inode->i_mode = S_IFREG + 0000;
+ inode->i_size = G.badblocks * 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, 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, 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, BLOCK_SIZE);
+ for (j = 0; j < 256; j++) {
+ ind_block[j] = zone;
+ if (!NEXT_BAD)
+ goto end_bad;
+ }
+ }
+ /* Could make triple indirect block here */
+ bb_error_msg_and_die("too many bad blocks");
+ end_bad:
+ if (ind)
+ write_block(ind, (char *) ind_block);
+ if (dind)
+ write_block(dind, (char *) dind_block);
+#undef ind_block
+#undef dind_block
+}
+#else
+void make_bad_inode2(void);
+#endif
+
+static void make_root_inode(void)
+{
+ struct minix1_inode *inode = &INODE_BUF1[MINIX_ROOT_INO];
+
+ mark_inode(MINIX_ROOT_INO);
+ inode->i_zone[0] = get_free_block();
+ inode->i_nlinks = 2;
+ inode->i_time = CUR_TIME;
+ if (G.badblocks)
+ inode->i_size = 3 * G.dirsize;
+ else {
+ G.root_block[2 * G.dirsize] = '\0';
+ G.root_block[2 * G.dirsize + 1] = '\0';
+ inode->i_size = 2 * G.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], G.root_block);
+}
+
+#if ENABLE_FEATURE_MINIX2
+static void make_root_inode2(void)
+{
+ struct minix2_inode *inode = &INODE_BUF2[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 = CUR_TIME;
+ if (G.badblocks)
+ inode->i_size = 3 * G.dirsize;
+ else {
+ G.root_block[2 * G.dirsize] = '\0';
+ G.root_block[2 * G.dirsize + 1] = '\0';
+ inode->i_size = 2 * G.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], G.root_block);
+}
+#else
+void make_root_inode2(void);
+#endif
+
+/*
+ * Perform a test of a block; return the number of
+ * blocks readable.
+ */
+static size_t do_check(char *buffer, size_t try, unsigned current_block)
+{
+ ssize_t got;
+
+ /* Seek to the correct loc. */
+ msg_eol = "seek failed during testing of blocks";
+ xlseek(dev_fd, current_block * BLOCK_SIZE, SEEK_SET);
+ msg_eol = "\n";
+
+ /* Try the read */
+ got = read(dev_fd, buffer, try * BLOCK_SIZE);
+ if (got < 0)
+ got = 0;
+ try = ((size_t)got) / BLOCK_SIZE;
+
+ if (got & (BLOCK_SIZE - 1))
+ fprintf(stderr, "Short read at block %u\n", (unsigned)(current_block + try));
+ return try;
+}
+
+static void alarm_intr(int alnum UNUSED_PARAM)
+{
+ if (G.currently_testing >= SB_ZONES)
+ return;
+ signal(SIGALRM, alarm_intr);
+ alarm(5);
+ if (!G.currently_testing)
+ return;
+ printf("%d ...", G.currently_testing);
+ fflush_all();
+}
+
+static void check_blocks(void)
+{
+ size_t try, got;
+
+ G.currently_testing = 0;
+ signal(SIGALRM, alarm_intr);
+ alarm(5);
+ while (G.currently_testing < SB_ZONES) {
+ msg_eol = "seek failed in check_blocks";
+ xlseek(dev_fd, G.currently_testing * BLOCK_SIZE, SEEK_SET);
+ msg_eol = "\n";
+ try = TEST_BUFFER_BLOCKS;
+ if (G.currently_testing + try > SB_ZONES)
+ try = SB_ZONES - G.currently_testing;
+ got = do_check(G.check_blocks_buffer, try, G.currently_testing);
+ G.currently_testing += got;
+ if (got == try)
+ continue;
+ if (G.currently_testing < SB_FIRSTZONE)
+ bb_error_msg_and_die("bad blocks before data-area: cannot make fs");
+ mark_zone(G.currently_testing);
+ G.badblocks++;
+ G.currently_testing++;
+ }
+ alarm(0);
+ printf("%d bad block(s)\n", G.badblocks);
+}
+
+static void get_list_blocks(char *filename)
+{
+ FILE *listfile;
+ unsigned long blockno;
+
+ listfile = xfopen_for_read(filename);
+ while (!feof(listfile)) {
+ fscanf(listfile, "%ld\n", &blockno);
+ mark_zone(blockno);
+ G.badblocks++;
+ }
+ printf("%d bad block(s)\n", G.badblocks);
+}
+
+static void setup_tables(void)
+{
+ unsigned long inodes;
+ unsigned norm_firstzone;
+ unsigned sb_zmaps;
+ unsigned i;
+
+ /* memset(G.superblock_buffer, 0, BLOCK_SIZE); */
+ /* memset(G.boot_block_buffer, 0, 512); */
+ SB_MAGIC = G.magic;
+ SB_ZONE_SIZE = 0;
+ SB_MAXSIZE = version2 ? 0x7fffffff : (7 + 512 + 512 * 512) * 1024;
+ if (version2)
+ SB.s_zones = G.total_blocks;
+ else
+ SB.s_nzones = G.total_blocks;
+
+ /* some magic nrs: 1 inode / 3 blocks */
+ if (G.req_nr_inodes == 0)
+ inodes = G.total_blocks / 3;
+ else
+ inodes = G.req_nr_inodes;
+ /* Round up inode count to fill block size */
+ if (version2)
+ inodes = (inodes + MINIX2_INODES_PER_BLOCK - 1) &
+ ~(MINIX2_INODES_PER_BLOCK - 1);
+ else
+ inodes = (inodes + MINIX1_INODES_PER_BLOCK - 1) &
+ ~(MINIX1_INODES_PER_BLOCK - 1);
+ if (inodes > 65535)
+ inodes = 65535;
+ SB_INODES = inodes;
+ SB_IMAPS = div_roundup(SB_INODES + 1, BITS_PER_BLOCK);
+
+ /* Real bad hack but overwise mkfs.minix can be thrown
+ * in infinite loop...
+ * try:
+ * dd if=/dev/zero of=test.fs count=10 bs=1024
+ * mkfs.minix -i 200 test.fs
+ */
+ /* This code is not insane: NORM_FIRSTZONE is not a constant,
+ * it is calculated from SB_INODES, SB_IMAPS and SB_ZMAPS */
+ i = 999;
+ SB_ZMAPS = 0;
+ do {
+ norm_firstzone = NORM_FIRSTZONE;
+ sb_zmaps = div_roundup(G.total_blocks - norm_firstzone + 1, BITS_PER_BLOCK);
+ if (SB_ZMAPS == sb_zmaps) goto got_it;
+ SB_ZMAPS = sb_zmaps;
+ /* new SB_ZMAPS, need to recalc NORM_FIRSTZONE */
+ } while (--i);
+ bb_error_msg_and_die("incompatible size/inode count, try different -i N");
+ got_it:
+
+ SB_FIRSTZONE = norm_firstzone;
+ G.inode_map = xmalloc(SB_IMAPS * BLOCK_SIZE);
+ G.zone_map = xmalloc(SB_ZMAPS * BLOCK_SIZE);
+ memset(G.inode_map, 0xff, SB_IMAPS * BLOCK_SIZE);
+ memset(G.zone_map, 0xff, SB_ZMAPS * BLOCK_SIZE);
+ for (i = SB_FIRSTZONE; i < SB_ZONES; i++)
+ unmark_zone(i);
+ for (i = MINIX_ROOT_INO; i <= SB_INODES; i++)
+ unmark_inode(i);
+ G.inode_buffer = xzalloc(INODE_BUFFER_SIZE);
+ printf("%ld inodes\n", (long)SB_INODES);
+ printf("%ld blocks\n", (long)SB_ZONES);
+ printf("Firstdatazone=%ld (%ld)\n", (long)SB_FIRSTZONE, (long)norm_firstzone);
+ printf("Zonesize=%d\n", BLOCK_SIZE << SB_ZONE_SIZE);
+ printf("Maxsize=%ld\n", (long)SB_MAXSIZE);
+}
+
+int mkfs_minix_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int mkfs_minix_main(int argc UNUSED_PARAM, char **argv)
+{
+ unsigned opt;
+ char *tmp;
+ struct stat statbuf;
+ char *str_i;
+ char *listfile = NULL;
+
+ INIT_G();
+/* default (changed to 30, per Linus's suggestion, Sun Nov 21 08:05:07 1993) */
+ G.namelen = 30;
+ G.dirsize = 32;
+ G.magic = MINIX1_SUPER_MAGIC2;
+
+ if (INODE_SIZE1 * MINIX1_INODES_PER_BLOCK != BLOCK_SIZE)
+ bb_error_msg_and_die("bad inode size");
+#if ENABLE_FEATURE_MINIX2
+ if (INODE_SIZE2 * MINIX2_INODES_PER_BLOCK != BLOCK_SIZE)
+ bb_error_msg_and_die("bad inode size");
+#endif
+
+ opt_complementary = "n+"; /* -n N */
+ opt = getopt32(argv, "ci:l:n:v", &str_i, &listfile, &G.namelen);
+ argv += optind;
+ //if (opt & 1) -c
+ if (opt & 2) G.req_nr_inodes = xatoul(str_i); // -i
+ //if (opt & 4) -l
+ if (opt & 8) { // -n
+ if (G.namelen == 14) G.magic = MINIX1_SUPER_MAGIC;
+ else if (G.namelen == 30) G.magic = MINIX1_SUPER_MAGIC2;
+ else bb_show_usage();
+ G.dirsize = G.namelen + 2;
+ }
+ if (opt & 0x10) { // -v
+#if ENABLE_FEATURE_MINIX2
+ version2 = 1;
+#else
+ bb_error_msg_and_die("not compiled with minix v2 support");
+#endif
+ }
+
+ G.device_name = *argv++;
+ if (!G.device_name)
+ bb_show_usage();
+ if (*argv)
+ G.total_blocks = xatou32(*argv);
+ else
+ G.total_blocks = get_size(G.device_name) / 1024;
+
+ if (G.total_blocks < 10)
+ bb_error_msg_and_die("must have at least 10 blocks");
+
+ if (version2) {
+ G.magic = MINIX2_SUPER_MAGIC2;
+ if (G.namelen == 14)
+ G.magic = MINIX2_SUPER_MAGIC;
+ } else if (G.total_blocks > 65535)
+ G.total_blocks = 65535;
+
+ /* Check if it is mounted */
+ if (find_mount_point(G.device_name, 0))
+ bb_error_msg_and_die("can't format mounted filesystem");
+
+ xmove_fd(xopen(G.device_name, O_RDWR), dev_fd);
+ xfstat(dev_fd, &statbuf, G.device_name);
+ if (!S_ISBLK(statbuf.st_mode))
+ opt &= ~1; // clear -c (check)
+
+/* I don't know why someone has special code to prevent mkfs.minix
+ * on IDE devices. Why IDE but not SCSI, etc?... */
+#if 0
+ else if (statbuf.st_rdev == 0x0300 || statbuf.st_rdev == 0x0340)
+ /* what is this? */
+ bb_error_msg_and_die("will not try "
+ "to make filesystem on '%s'", G.device_name);
+#endif
+
+ tmp = G.root_block;
+ *(short *) tmp = 1;
+ strcpy(tmp + 2, ".");
+ tmp += G.dirsize;
+ *(short *) tmp = 1;
+ strcpy(tmp + 2, "..");
+ tmp += G.dirsize;
+ *(short *) tmp = 2;
+ strcpy(tmp + 2, ".badblocks");
+
+ setup_tables();
+
+ if (opt & 1) // -c ?
+ check_blocks();
+ else if (listfile)
+ get_list_blocks(listfile);
+
+ if (version2) {
+ make_root_inode2();
+ make_bad_inode2();
+ } else {
+ make_root_inode();
+ make_bad_inode();
+ }
+
+ mark_good_blocks();
+ write_tables();
+ return 0;
+}