* enforced (but it's not much fun on a character device :-).
*/
-#include "libbb.h"
#include <mntent.h>
-
+#include "libbb.h"
#include "minix.h"
#ifndef BLKGETSIZE
#define BLKGETSIZE _IO(0x12,96) /* return device size */
#endif
-#ifdef UNUSED
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 */
- NAME_MAX = 255, /* # chars in a file name */
-};
#endif
+ MINIX_NAME_MAX = 255, /* # chars in a file name */
+};
-#if ENABLE_FEATURE_MINIX2
-static smallint version2;
-#else
+#if !ENABLE_FEATURE_MINIX2
enum { version2 = 0 };
#endif
-static smallint repair, automatic, verbose, list, show, warn_mode, force;
-static smallint changed; /* is filesystem modified? */
-static smallint errors_uncorrected; /* flag if some error was not corrected */
-
-static smallint termios_set;
-static struct termios termios;
-
-static char *device_name;
-static int IN;
-static int directory, regular, blockdev, chardev, links, symlinks, total;
-
-//also smallint?
-static int dirsize = 16;
-static int namelen = 14;
-
-static char *inode_buffer;
+enum { MAX_DEPTH = 32 };
-static struct {
+struct globals {
+ int dev_fd;
+#if ENABLE_FEATURE_MINIX2
+ smallint version2;
+#endif
+ smallint repair, automatic, verbose, list, show, warn_mode, force;
+ smallint changed; /* is filesystem modified? */
+ smallint errors_uncorrected; /* flag if some error was not corrected */
+ smallint termios_set;
+ smallint dirsize;
+ smallint namelen;
+ char *device_name;
+ int directory, regular, blockdev, chardev, links, symlinks, total;
+ char *inode_buffer;
+
+ char *inode_map;
+ char *zone_map;
+
+ unsigned char *inode_count;
+ unsigned char *zone_count;
+
+ /* File-name data */
+ int name_depth;
+ char *name_component[MAX_DEPTH+1];
+
+ /* Bigger stuff */
+ struct termios sv_termios;
char super_block_buffer[BLOCK_SIZE];
char add_zone_ind_blk[BLOCK_SIZE];
char add_zone_dind_blk[BLOCK_SIZE];
USE_FEATURE_MINIX2(char add_zone_tind_blk[BLOCK_SIZE];)
char check_file_blk[BLOCK_SIZE];
-} *blockbuf;
+
+ /* File-name data */
+ char current_name[MAX_DEPTH * MINIX_NAME_MAX];
+};
+
+#define G (*ptr_to_globals)
+#define dev_fd (G.dev_fd )
+#if ENABLE_FEATURE_MINIX2
+#define version2 (G.version2 )
+#endif
+#define repair (G.repair )
+#define automatic (G.automatic )
+#define verbose (G.verbose )
+#define list (G.list )
+#define show (G.show )
+#define warn_mode (G.warn_mode )
+#define force (G.force )
+#define changed (G.changed )
+#define errors_uncorrected (G.errors_uncorrected )
+#define termios_set (G.termios_set )
+#define dirsize (G.dirsize )
+#define namelen (G.namelen )
+#define device_name (G.device_name )
+#define directory (G.directory )
+#define regular (G.regular )
+#define blockdev (G.blockdev )
+#define chardev (G.chardev )
+#define links (G.links )
+#define symlinks (G.symlinks )
+#define total (G.total )
+#define inode_buffer (G.inode_buffer )
+#define inode_map (G.inode_map )
+#define zone_map (G.zone_map )
+#define inode_count (G.inode_count )
+#define zone_count (G.zone_count )
+#define name_depth (G.name_depth )
+#define name_component (G.name_component )
+#define sv_termios (G.sv_termios )
+#define super_block_buffer (G.super_block_buffer )
+#define add_zone_ind_blk (G.add_zone_ind_blk )
+#define add_zone_dind_blk (G.add_zone_dind_blk )
+#define add_zone_tind_blk (G.add_zone_tind_blk )
+#define check_file_blk (G.check_file_blk )
+#define current_name (G.current_name )
+#define INIT_G() do { \
+ dirsize = 16; \
+ namelen = 14; \
+ current_name[0] = '/'; \
+ /*current_name[1] = '\0';*/ \
+ name_component[0] = ¤t_name[0]; \
+} while (0)
#define Inode1 (((struct minix1_inode *) inode_buffer)-1)
#define Inode2 (((struct minix2_inode *) inode_buffer)-1)
-#define Super (*(struct minix_super_block *)(blockbuf->super_block_buffer))
+#define Super (*(struct minix_super_block *)(super_block_buffer))
#if ENABLE_FEATURE_MINIX2
# define ZONES ((unsigned)(version2 ? Super.s_zones : Super.s_nzones))
#define INODE_BUFFER_SIZE (INODE_BLOCKS * BLOCK_SIZE)
#define NORM_FIRSTZONE (2 + IMAPS + ZMAPS + INODE_BLOCKS)
-static char *inode_map;
-static char *zone_map;
-
-static unsigned char *inode_count;
-static unsigned char *zone_count;
-
/* Before you ask "where they come from?": */
/* setbit/clrbit are supplied by sys/param.h */
#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))
+#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);
static void die(const char *str)
{
if (termios_set)
- tcsetattr(0, TCSANOW, &termios);
+ tcsetattr(0, TCSANOW, &sv_termios);
bb_error_msg_and_die("%s", str);
}
-/* File-name data */
-enum { MAX_DEPTH = 32 };
-static int name_depth;
-static char *current_name;
-static char *name_component[MAX_DEPTH+1];
-
-/* Wed Feb 9 15:17:06 MST 2000 */
-/* dynamically allocate name_list (instead of making it static) */
-static void alloc_current_name(void)
-{
- current_name = xmalloc(MAX_DEPTH * (BUFSIZ + 1));
- current_name[0] = '/';
- current_name[1] = '\0';
- name_component[0] = ¤t_name[0];
-}
-
-#if ENABLE_FEATURE_CLEAN_UP
-/* execute this atexit() to deallocate name_list[] */
-/* piptigger was here */
-static void free_current_name(void)
-{
- free(current_name);
-}
-#endif
-
static void push_filename(const char *name)
{
// /dir/dir/dir/file
memset(addr, 0, BLOCK_SIZE);
return;
}
- if (BLOCK_SIZE * nr != lseek(IN, BLOCK_SIZE * nr, SEEK_SET)) {
+ if (BLOCK_SIZE * nr != lseek(dev_fd, BLOCK_SIZE * nr, SEEK_SET)) {
printf("%s: cannot seek to block in file '%s'\n",
bb_msg_read_error, current_name);
errors_uncorrected = 1;
memset(addr, 0, BLOCK_SIZE);
- } else if (BLOCK_SIZE != read(IN, addr, BLOCK_SIZE)) {
+ } else if (BLOCK_SIZE != read(dev_fd, addr, BLOCK_SIZE)) {
printf("%s: bad block in file '%s'\n",
bb_msg_read_error, current_name);
errors_uncorrected = 1;
errors_uncorrected = 1;
return;
}
- if (BLOCK_SIZE * nr != lseek(IN, BLOCK_SIZE * nr, SEEK_SET))
+ if (BLOCK_SIZE * nr != lseek(dev_fd, BLOCK_SIZE * nr, SEEK_SET))
die("seek failed in write_block");
- if (BLOCK_SIZE != write(IN, addr, BLOCK_SIZE)) {
+ if (BLOCK_SIZE != write(dev_fd, addr, BLOCK_SIZE)) {
printf("%s: bad block in file '%s'\n",
bb_msg_write_error, current_name);
errors_uncorrected = 1;
if (!errors_uncorrected)
Super.s_state &= ~MINIX_ERROR_FS;
- if (BLOCK_SIZE != lseek(IN, BLOCK_SIZE, SEEK_SET))
+ if (BLOCK_SIZE != lseek(dev_fd, BLOCK_SIZE, SEEK_SET))
die("seek failed in write_super_block");
- if (BLOCK_SIZE != write(IN, blockbuf->super_block_buffer, BLOCK_SIZE))
+ if (BLOCK_SIZE != write(dev_fd, super_block_buffer, BLOCK_SIZE))
die("cannot write super-block");
}
{
write_super_block();
- if (IMAPS * BLOCK_SIZE != write(IN, inode_map, IMAPS * BLOCK_SIZE))
+ if (IMAPS * BLOCK_SIZE != write(dev_fd, inode_map, IMAPS * BLOCK_SIZE))
die("cannot write inode map");
- if (ZMAPS * BLOCK_SIZE != write(IN, zone_map, ZMAPS * BLOCK_SIZE))
+ if (ZMAPS * BLOCK_SIZE != write(dev_fd, zone_map, ZMAPS * BLOCK_SIZE))
die("cannot write zone map");
- if (INODE_BUFFER_SIZE != write(IN, inode_buffer, INODE_BUFFER_SIZE))
+ if (INODE_BUFFER_SIZE != write(dev_fd, inode_buffer, INODE_BUFFER_SIZE))
die("cannot write inodes");
}
static void read_superblock(void)
{
- if (BLOCK_SIZE != lseek(IN, BLOCK_SIZE, SEEK_SET))
+ if (BLOCK_SIZE != lseek(dev_fd, BLOCK_SIZE, SEEK_SET))
die("seek failed");
- if (BLOCK_SIZE != read(IN, blockbuf->super_block_buffer, BLOCK_SIZE))
+ if (BLOCK_SIZE != read(dev_fd, super_block_buffer, BLOCK_SIZE))
die("cannot read super block");
/* already initialized to:
namelen = 14;
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))
+ if (IMAPS * BLOCK_SIZE != read(dev_fd, inode_map, IMAPS * BLOCK_SIZE))
die("cannot read inode map");
- if (ZMAPS * BLOCK_SIZE != read(IN, zone_map, ZMAPS * BLOCK_SIZE))
+ if (ZMAPS * BLOCK_SIZE != read(dev_fd, zone_map, ZMAPS * BLOCK_SIZE))
die("cannot read zone map");
- if (INODE_BUFFER_SIZE != read(IN, inode_buffer, INODE_BUFFER_SIZE))
+ if (INODE_BUFFER_SIZE != read(dev_fd, inode_buffer, INODE_BUFFER_SIZE))
die("cannot read inodes");
if (NORM_FIRSTZONE != FIRSTZONE) {
printf("warning: firstzone!=norm_firstzone\n");
static void add_zone_ind(uint16_t *znr, smallint *corrected)
{
-#define blk (blockbuf->add_zone_ind_blk)
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 + (uint16_t *) blk, &chg_blk);
+ add_zone(i + (uint16_t *) add_zone_ind_blk, &chg_blk);
if (chg_blk)
- write_block(block, blk);
-#undef blk
+ write_block(block, add_zone_ind_blk);
}
#if ENABLE_FEATURE_MINIX2
static void add_zone_ind2(uint32_t *znr, smallint *corrected)
{
-#define blk (blockbuf->add_zone_ind_blk)
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 + (uint32_t *) blk, &chg_blk);
+ add_zone2(i + (uint32_t *) add_zone_ind_blk, &chg_blk);
if (chg_blk)
- write_block(block, blk);
-#undef blk
+ write_block(block, add_zone_ind_blk);
}
#endif
static void add_zone_dind(uint16_t *znr, smallint *corrected)
{
-#define blk (blockbuf->add_zone_dind_blk)
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 + (uint16_t *) blk, &chg_blk);
+ add_zone_ind(i + (uint16_t *) add_zone_dind_blk, &chg_blk);
if (chg_blk)
- write_block(block, blk);
-#undef blk
+ write_block(block, add_zone_dind_blk);
}
#if ENABLE_FEATURE_MINIX2
static void add_zone_dind2(uint32_t *znr, smallint *corrected)
{
-#define blk (blockbuf->add_zone_dind_blk)
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 + (uint32_t *) blk, &chg_blk);
+ add_zone_ind2(i + (uint32_t *) add_zone_dind_blk, &chg_blk);
if (chg_blk)
- write_block(block, blk);
-#undef blk
+ write_block(block, add_zone_dind_blk);
}
static void add_zone_tind2(uint32_t *znr, smallint *corrected)
{
-#define blk (blockbuf->add_zone_tind_blk)
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 + (uint32_t *) blk, &chg_blk);
+ add_zone_dind2(i + (uint32_t *) add_zone_tind_blk, &chg_blk);
if (chg_blk)
- write_block(block, blk);
-#undef blk
+ write_block(block, add_zone_tind_blk);
}
#endif
static void check_file(struct minix1_inode *dir, unsigned offset)
{
-#define blk (blockbuf->check_file_blk)
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;
+ read_block(block, check_file_blk);
+ name = check_file_blk + (offset % BLOCK_SIZE) + 2;
ino = *(uint16_t *) (name - 2);
if (ino > INODES) {
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, blk);
+ write_block(block, check_file_blk);
}
ino = 0;
}
if (inode && S_ISDIR(inode->i_mode))
recursive_check(ino);
pop_filename();
-#undef blk
}
#if ENABLE_FEATURE_MINIX2
static void check_file2(struct minix2_inode *dir, unsigned offset)
{
-#define blk (blockbuf->check_file_blk)
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;
+ read_block(block, check_file_blk);
+ name = check_file_blk + (offset % BLOCK_SIZE) + 2;
ino = *(uint16_t *) (name - 2);
if (ino > INODES) {
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, blk);
+ write_block(block, check_file_blk);
}
ino = 0;
}
if (inode && S_ISDIR(inode->i_mode))
recursive_check2(ino);
pop_filename();
-#undef blk
}
#endif
{
char buffer[BLOCK_SIZE];
- if (BLOCK_SIZE * i != lseek(IN, BLOCK_SIZE * i, SEEK_SET))
+ if (BLOCK_SIZE * i != lseek(dev_fd, BLOCK_SIZE * i, SEEK_SET))
die("seek failed in bad_zone");
- return (BLOCK_SIZE != read(IN, buffer, BLOCK_SIZE));
+ return (BLOCK_SIZE != read(dev_fd, buffer, BLOCK_SIZE));
}
static void check_counts(void)
int retcode = 0;
xfunc_error_retval = 8;
- blockbuf = xzalloc(sizeof(*blockbuf));
- alloc_current_name();
-#if ENABLE_FEATURE_CLEAN_UP
- /* Don't bother to free memory. Exit does
- * that automagically, so we can save a few bytes */
- atexit(free_current_name);
-#endif
+ INIT_G();
if (INODE_SIZE1 * MINIX1_INODES_PER_BLOCK != BLOCK_SIZE)
die("bad inode size");
if (!isatty(0) || !isatty(1))
die("need terminal for interactive repairs");
}
- IN = xopen(device_name, repair ? O_RDWR : O_RDONLY);
+ dev_fd = xopen(device_name, repair ? O_RDWR : O_RDONLY);
/*sync(); paranoia? */
read_superblock();
read_tables();
if (repair && !automatic) {
- tcgetattr(0, &termios);
- tmp = termios;
+ tcgetattr(0, &sv_termios);
+ tmp = sv_termios;
tmp.c_lflag &= ~(ICANON | ECHO);
tcsetattr(0, TCSANOW, &tmp);
termios_set = 1;
write_super_block();
if (repair && !automatic)
- tcsetattr(0, TCSANOW, &termios);
+ tcsetattr(0, TCSANOW, &sv_termios);
if (changed)
retcode += 3;
projects / oweals / busybox.git / commitdiff