*
* 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.
*/
#include "internal.h"
#include <termios.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
+#include <sys/param.h>
#include <mntent.h>
-#include <getopt.h>
-#include <linux/fs.h>
-#include <linux/minix_fs.h>
-#ifdef MINIX2_SUPER_MAGIC2
-#define HAVE_MINIX2 1
+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)))
+
+#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];
+};
+
+/*
+ * minix super-block data on disk
+ */
+struct minix_super_block {
+ u16 s_ninodes;
+ u16 s_nzones;
+ u16 s_imap_blocks;
+ u16 s_zmap_blocks;
+ u16 s_firstdatazone;
+ u16 s_log_zone_size;
+ u32 s_max_size;
+ u16 s_magic;
+ u16 s_state;
+ u32 s_zones;
+};
+
+struct minix_dir_entry {
+ u16 inode;
+ char name[0];
+};
+
+#define BLOCK_SIZE_BITS 10
+#define BLOCK_SIZE (1<<BLOCK_SIZE_BITS)
+
+#define NAME_MAX 255 /* # chars in a file name */
+
+#define MINIX_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix_inode)))
+
+#define MINIX_VALID_FS 0x0001 /* Clean fs. */
+#define MINIX_ERROR_FS 0x0002 /* fs has errors. */
+
+#define MINIX_SUPER_MAGIC 0x137F /* original minix fs */
+#define MINIX_SUPER_MAGIC2 0x138F /* minix fs, 30 char names */
+
+#ifndef BLKGETSIZE
+#define BLKGETSIZE _IO(0x12,96) /* return device size */
#endif
-#ifndef __GNUC__
-#error "needs gcc for the bitop-__asm__'s"
+
+#ifdef MINIX2_SUPER_MAGIC2
+#define HAVE_MINIX2 1
#endif
#ifndef __linux__
#define BITS_PER_BLOCK (BLOCK_SIZE<<3)
-static char *program_name = "mkfs";
static char *device_name = NULL;
static int DEV = -1;
static long BLOCKS = 0;
*/
static volatile void die(char *str)
{
- fprintf(stderr, "%s: %s\n", program_name, str);
+ errorMsg("%s\n", str);
exit(8);
}
+static volatile void show_usage() __attribute__ ((noreturn));
static volatile void show_usage()
{
- fprintf(stderr, "BusyBox v%s (%s) multi-call binary -- GPL2\n\n",
- BB_VER, BB_BT);
- fprintf(stderr,
- "Usage: %s [-c | -l filename] [-nXX] [-iXX] /dev/name [blocks]\n\n",
- program_name);
- fprintf(stderr, "Make a MINIX filesystem.\n\n");
- fprintf(stderr, "OPTIONS:\n");
- fprintf(stderr, "\t-c\t\tCheck the device for bad blocks\n");
- fprintf(stderr,
- "\t-n [14|30]\tSpecify the maximum length of filenames\n");
- fprintf(stderr,
- "\t-i\t\tSpecify the number of inodes for the filesystem\n");
- fprintf(stderr,
- "\t-l FILENAME\tRead the bad blocks list from FILENAME\n");
- fprintf(stderr, "\t-v\t\tMake a Minix version 2 filesystem\n\n");
- exit(16);
+ usage(mkfs_minix_usage);
}
/*
extern int mkfs_minix_main(int argc, char **argv)
{
- int i;
+ int i=1;
char *tmp;
struct stat statbuf;
char *listfile = NULL;
+ int stopIt=FALSE;
- if (argc && *argv)
- program_name = *argv;
if (INODE_SIZE * MINIX_INODES_PER_BLOCK != BLOCK_SIZE)
die("bad inode size");
#ifdef HAVE_MINIX2
if (INODE_SIZE2 * MINIX2_INODES_PER_BLOCK != BLOCK_SIZE)
die("bad inode size");
#endif
- opterr = 0;
- while ((i = getopt(argc, argv, "ci:l:n:v")) != EOF)
- switch (i) {
- case 'c':
- check = 1;
- break;
- case 'i':
- req_nr_inodes = (unsigned long) atol(optarg);
- break;
- case 'l':
- listfile = optarg;
- break;
- case 'n':
- i = strtoul(optarg, &tmp, 0);
- if (*tmp)
- show_usage();
- if (i == 14)
- magic = MINIX_SUPER_MAGIC;
- else if (i == 30)
- magic = MINIX_SUPER_MAGIC2;
- else
- show_usage();
- namelen = i;
- dirsize = i + 2;
- break;
- case 'v':
+
+ /* Parse options */
+ argv++;
+ while (--argc >= 0 && *argv && **argv) {
+ if (**argv == '-') {
+ stopIt=FALSE;
+ while (i > 0 && *++(*argv) && stopIt==FALSE) {
+ switch (**argv) {
+ case 'c':
+ check = 1;
+ break;
+ case 'i':
+ {
+ char *cp=NULL;
+ if (*(*argv+1) != 0) {
+ cp = ++(*argv);
+ } else {
+ if (--argc == 0) {
+ goto goodbye;
+ }
+ cp = *(++argv);
+ }
+ req_nr_inodes = strtoul(cp, &tmp, 0);
+ if (*tmp)
+ show_usage();
+ stopIt=TRUE;
+ break;
+ }
+ case 'l':
+ if (--argc == 0) {
+ goto goodbye;
+ }
+ listfile = *(++argv);
+ break;
+ case 'n':
+ {
+ char *cp=NULL;
+
+ if (*(*argv+1) != 0) {
+ cp = ++(*argv);
+ } else {
+ if (--argc == 0) {
+ goto goodbye;
+ }
+ cp = *(++argv);
+ }
+ i = strtoul(cp, &tmp, 0);
+ if (*tmp)
+ show_usage();
+ if (i == 14)
+ magic = MINIX_SUPER_MAGIC;
+ else if (i == 30)
+ magic = MINIX_SUPER_MAGIC2;
+ else
+ show_usage();
+ namelen = i;
+ dirsize = i + 2;
+ stopIt=TRUE;
+ break;
+ }
+ case 'v':
#ifdef HAVE_MINIX2
- version2 = 1;
+ version2 = 1;
#else
- fprintf(stderr, "%s: not compiled with minix v2 support\n",
- program_name, device_name);
- exit(-1);
+ errorMsg("%s: not compiled with minix v2 support\n",
+ device_name);
+ exit(-1);
#endif
- break;
- default:
- show_usage();
+ break;
+ case '-':
+ case 'h':
+ default:
+goodbye:
+ show_usage();
+ }
+ }
+ } else {
+ if (device_name == NULL)
+ device_name = *argv;
+ else if (BLOCKS == 0)
+ BLOCKS = strtol(*argv, &tmp, 0);
+ else {
+ goto goodbye;
+ }
}
- argc -= optind;
- argv += optind;
- if (argc > 0 && !device_name) {
- device_name = argv[0];
- argc--;
argv++;
}
- if (argc > 0) {
- BLOCKS = strtol(argv[0], &tmp, 0);
- if (*tmp) {
- printf("strtol error: number of blocks not specified");
- show_usage();
- }
- }
if (device_name && !BLOCKS)
BLOCKS = get_size(device_name) / 1024;
}
mark_good_blocks();
write_tables();
- return 0;
+ return( 0);
+
}
projects / oweals / busybox.git / blobdiff