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fsck_minix: getopt32-ification; code shrink; reduce stack usage;

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fix bug in map_block2: s/(blknr >= 256 * 256)/(blknr < 256 * 256)/

function                                             old     new   delta
get_inode_common                                       -     291    +291
add_zone_common                                        -     205    +205
ask                                                  229     215     -14
write_super_block                                    109      90     -19
write_block                                          653     629     -24
bad_zone                                              95      64     -31
read_block                                           241     198     -43
fsck_minix_main                                     3285    3195     -90
add_zone2                                            217      34    -183
add_zone                                             216      33    -183
recursive_check                                     1097     866    -231
recursive_check2                                    1340     956    -384
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/10 up/down: 496/-1202)       Total: -706 bytes
   text    data     bss     dec     hex filename
 799349     661    7428  807438   c520e busybox_old
 798437     661    7428  806526   c4e7e busybox_unstripped
This commit is contained in:
Denis Vlasenko 2008-03-17 08:32:26 +00:00
parent 3f165fa5b3
commit 9f153f610f
3 changed files with 139 additions and 224 deletions
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7
archival/libunarchive/filter_accept_reject_list.c
View File

@ -13,11 +13,14 @@
*/ */
char filter_accept_reject_list(archive_handle_t *archive_handle) char filter_accept_reject_list(archive_handle_t *archive_handle)
{ {
const char *key = archive_handle->file_header->name; const char *key;
const llist_t *reject_entry = find_list_entry2(archive_handle->reject, key); const llist_t *reject_entry;
const llist_t *accept_entry; const llist_t *accept_entry;
key = archive_handle->file_header->name;
/* If the key is in a reject list fail */ /* If the key is in a reject list fail */
reject_entry = find_list_entry2(archive_handle->reject, key);
if (reject_entry) { if (reject_entry) {
return EXIT_FAILURE; return EXIT_FAILURE;
} }

2
archival/libunarchive/find_list_entry.c
View File

@ -38,7 +38,7 @@ const llist_t *find_list_entry2(const llist_t *list, const char *filename)
if (*c++ == '/') pattern_slash_cnt++; if (*c++ == '/') pattern_slash_cnt++;
c = filename; c = filename;
d = buf; d = buf;
/* paranoia is better that buffer overflows */ /* paranoia is better than buffer overflows */
while (*c && d != buf + sizeof(buf)-1) { while (*c && d != buf + sizeof(buf)-1) {
if (*c == '/' && --pattern_slash_cnt < 0) if (*c == '/' && --pattern_slash_cnt < 0)
break; break;

354
util-linux/fsck_minix.c
View File

@ -95,6 +95,13 @@
#define BLKGETSIZE _IO(0x12,96) /* return device size */ #define BLKGETSIZE _IO(0x12,96) /* return device size */
#endif #endif
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
};
enum { enum {
#ifdef UNUSED #ifdef UNUSED
MINIX1_LINK_MAX = 250, MINIX1_LINK_MAX = 250,
@ -107,6 +114,7 @@ enum {
MINIX_NAME_MAX = 255, /* # chars in a file name */ MINIX_NAME_MAX = 255, /* # chars in a file name */
}; };
#if !ENABLE_FEATURE_MINIX2 #if !ENABLE_FEATURE_MINIX2
enum { version2 = 0 }; enum { version2 = 0 };
#endif #endif
@ -118,13 +126,12 @@ struct globals {
#if ENABLE_FEATURE_MINIX2 #if ENABLE_FEATURE_MINIX2
smallint version2; smallint version2;
#endif #endif
smallint repair, automatic, verbose, list, show, warn_mode, force;
smallint changed; /* is filesystem modified? */ smallint changed; /* is filesystem modified? */
smallint errors_uncorrected; /* flag if some error was not corrected */ smallint errors_uncorrected; /* flag if some error was not corrected */
smallint termios_set; smallint termios_set;
smallint dirsize; smallint dirsize;
smallint namelen; smallint namelen;
char *device_name; const char *device_name;
int directory, regular, blockdev, chardev, links, symlinks, total; int directory, regular, blockdev, chardev, links, symlinks, total;
char *inode_buffer; char *inode_buffer;
@ -155,13 +162,6 @@ struct globals {
#if ENABLE_FEATURE_MINIX2 #if ENABLE_FEATURE_MINIX2
#define version2 (G.version2 ) #define version2 (G.version2 )
#endif #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 changed (G.changed )
#define errors_uncorrected (G.errors_uncorrected ) #define errors_uncorrected (G.errors_uncorrected )
#define termios_set (G.termios_set ) #define termios_set (G.termios_set )
@ -198,6 +198,28 @@ struct globals {
name_component[0] = &current_name[0]; \ name_component[0] = &current_name[0]; \
} while (0) } while (0)
#define OPTION_STR "larvsmf"
enum {
OPT_l = (1 << 0),
OPT_a = (1 << 1),
OPT_r = (1 << 2),
OPT_v = (1 << 3),
OPT_s = (1 << 4),
OPT_w = (1 << 5),
OPT_f = (1 << 6),
};
#define OPT_list (option_mask32 & OPT_l)
#define OPT_automatic (option_mask32 & OPT_a)
#define OPT_repair (option_mask32 & OPT_r)
#define OPT_verbose (option_mask32 & OPT_v)
#define OPT_show (option_mask32 & OPT_s)
#define OPT_warn_mode (option_mask32 & OPT_w)
#define OPT_force (option_mask32 & OPT_f)
/* non-automatic repairs requested? */
#define OPT_manual ((option_mask32 & (OPT_a|OPT_r)) == OPT_r)
#define Inode1 (((struct minix1_inode *) inode_buffer)-1) #define Inode1 (((struct minix1_inode *) inode_buffer)-1)
#define Inode2 (((struct minix2_inode *) inode_buffer)-1) #define Inode2 (((struct minix2_inode *) inode_buffer)-1)
@ -306,12 +328,12 @@ static int ask(const char *string, int def)
{ {
int c; int c;
if (!repair) { if (!OPT_repair) {
bb_putchar('\n'); bb_putchar('\n');
errors_uncorrected = 1; errors_uncorrected = 1;
return 0; return 0;
} }
if (automatic) { if (OPT_automatic) {
bb_putchar('\n'); bb_putchar('\n');
if (!def) if (!def)
errors_uncorrected = 1; errors_uncorrected = 1;
@ -423,20 +445,16 @@ static int check_zone_nr(uint16_t *nr, smallint *corrected)
/* /*
* read-block reads block nr into the buffer at addr. * read-block reads block nr into the buffer at addr.
*/ */
static void read_block(unsigned nr, char *addr) static void read_block(unsigned nr, void *addr)
{ {
if (!nr) { if (!nr) {
memset(addr, 0, BLOCK_SIZE); memset(addr, 0, BLOCK_SIZE);
return; return;
} }
if (BLOCK_SIZE * nr != lseek(dev_fd, BLOCK_SIZE * nr, SEEK_SET)) { xlseek(dev_fd, BLOCK_SIZE * nr, SEEK_SET);
printf("%s: cannot seek to block in file '%s'\n", if (BLOCK_SIZE != full_read(dev_fd, addr, BLOCK_SIZE)) {
bb_msg_read_error, current_name); printf("%s: bad block %u in file '%s'\n",
errors_uncorrected = 1; bb_msg_read_error, nr, current_name);
memset(addr, 0, 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;
memset(addr, 0, BLOCK_SIZE); memset(addr, 0, BLOCK_SIZE);
} }
@ -445,7 +463,7 @@ static void read_block(unsigned nr, char *addr)
/* /*
* write_block writes block nr to disk. * write_block writes block nr to disk.
*/ */
static void write_block(unsigned nr, char *addr) static void write_block(unsigned nr, void *addr)
{ {
if (!nr) if (!nr)
return; return;
@ -455,11 +473,10 @@ static void write_block(unsigned nr, char *addr)
errors_uncorrected = 1; errors_uncorrected = 1;
return; return;
} }
if (BLOCK_SIZE * nr != lseek(dev_fd, BLOCK_SIZE * nr, SEEK_SET)) xlseek(dev_fd, BLOCK_SIZE * nr, SEEK_SET);
die("seek failed in write_block"); if (BLOCK_SIZE != full_write(dev_fd, addr, BLOCK_SIZE)) {
if (BLOCK_SIZE != write(dev_fd, addr, BLOCK_SIZE)) { printf("%s: bad block %u in file '%s'\n",
printf("%s: bad block in file '%s'\n", bb_msg_write_error, nr, current_name);
bb_msg_write_error, current_name);
errors_uncorrected = 1; errors_uncorrected = 1;
} }
} }
@ -472,7 +489,6 @@ static void write_block(unsigned nr, char *addr)
static int map_block(struct minix1_inode *inode, unsigned blknr) static int map_block(struct minix1_inode *inode, unsigned blknr)
{ {
uint16_t ind[BLOCK_SIZE >> 1]; uint16_t ind[BLOCK_SIZE >> 1];
uint16_t dind[BLOCK_SIZE >> 1];
int block, result; int block, result;
smallint blk_chg; smallint blk_chg;
@ -481,26 +497,22 @@ static int map_block(struct minix1_inode *inode, unsigned blknr)
blknr -= 7; blknr -= 7;
if (blknr < 512) { if (blknr < 512) {
block = check_zone_nr(inode->i_zone + 7, &changed); block = check_zone_nr(inode->i_zone + 7, &changed);
read_block(block, (char *) ind); goto common;
blk_chg = 0;
result = check_zone_nr(blknr + ind, &blk_chg);
if (blk_chg)
write_block(block, (char *) ind);
return result;
} }
blknr -= 512; blknr -= 512;
block = check_zone_nr(inode->i_zone + 8, &changed); block = check_zone_nr(inode->i_zone + 8, &changed);
read_block(block, (char *) dind); read_block(block, ind); /* double indirect */
blk_chg = 0; blk_chg = 0;
result = check_zone_nr(dind + (blknr / 512), &blk_chg); result = check_zone_nr(&ind[blknr / 512], &blk_chg);
if (blk_chg) if (blk_chg)
write_block(block, (char *) dind); write_block(block, ind);
block = result; block = result;
read_block(block, (char *) ind); common:
read_block(block, ind);
blk_chg = 0; blk_chg = 0;
result = check_zone_nr(ind + (blknr % 512), &blk_chg); result = check_zone_nr(&ind[blknr % 512], &blk_chg);
if (blk_chg) if (blk_chg)
write_block(block, (char *) ind); write_block(block, ind);
return result; return result;
} }
@ -508,8 +520,6 @@ static int map_block(struct minix1_inode *inode, unsigned blknr)
static int map_block2(struct minix2_inode *inode, unsigned blknr) static int map_block2(struct minix2_inode *inode, unsigned blknr)
{ {
uint32_t ind[BLOCK_SIZE >> 2]; uint32_t ind[BLOCK_SIZE >> 2];
uint32_t dind[BLOCK_SIZE >> 2];
uint32_t tind[BLOCK_SIZE >> 2];
int block, result; int block, result;
smallint blk_chg; smallint blk_chg;
@ -518,48 +528,34 @@ static int map_block2(struct minix2_inode *inode, unsigned blknr)
blknr -= 7; blknr -= 7;
if (blknr < 256) { if (blknr < 256) {
block = check_zone_nr2(inode->i_zone + 7, &changed); block = check_zone_nr2(inode->i_zone + 7, &changed);
read_block(block, (char *) ind); goto common2;
blk_chg = 0;
result = check_zone_nr2(blknr + ind, &blk_chg);
if (blk_chg)
write_block(block, (char *) ind);
return result;
} }
blknr -= 256; blknr -= 256;
if (blknr >= 256 * 256) { if (blknr < 256 * 256) {
block = check_zone_nr2(inode->i_zone + 8, &changed); block = check_zone_nr2(inode->i_zone + 8, &changed);
read_block(block, (char *) dind); goto common1;
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;
} }
blknr -= 256 * 256; blknr -= 256 * 256;
block = check_zone_nr2(inode->i_zone + 9, &changed); block = check_zone_nr2(inode->i_zone + 9, &changed);
read_block(block, (char *) tind); read_block(block, ind); /* triple indirect */
blk_chg = 0; 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) if (blk_chg)
write_block(block, (char *) tind); write_block(block, ind);
block = result; block = result;
read_block(block, (char *) dind); common1:
read_block(block, ind); /* double indirect */
blk_chg = 0; 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) if (blk_chg)
write_block(block, (char *) dind); write_block(block, ind);
block = result; block = result;
read_block(block, (char *) ind); common2:
read_block(block, ind);
blk_chg = 0; blk_chg = 0;
result = check_zone_nr2(ind + blknr % 256, &blk_chg); result = check_zone_nr2(&ind[blknr % 256], &blk_chg);
if (blk_chg) if (blk_chg)
write_block(block, (char *) ind); write_block(block, ind);
return result; return result;
} }
#endif #endif
@ -575,9 +571,8 @@ static void write_super_block(void)
if (!errors_uncorrected) if (!errors_uncorrected)
Super.s_state &= ~MINIX_ERROR_FS; Super.s_state &= ~MINIX_ERROR_FS;
if (BLOCK_SIZE != lseek(dev_fd, BLOCK_SIZE, SEEK_SET)) xlseek(dev_fd, BLOCK_SIZE, SEEK_SET);
die("seek failed in write_super_block"); if (BLOCK_SIZE != full_write(dev_fd, super_block_buffer, BLOCK_SIZE))
if (BLOCK_SIZE != write(dev_fd, super_block_buffer, BLOCK_SIZE))
die("cannot write super-block"); die("cannot write super-block");
} }
@ -618,9 +613,8 @@ static void get_dirsize(void)
static void read_superblock(void) static void read_superblock(void)
{ {
if (BLOCK_SIZE != lseek(dev_fd, BLOCK_SIZE, SEEK_SET)) xlseek(dev_fd, BLOCK_SIZE, SEEK_SET);
die("seek failed"); if (BLOCK_SIZE != full_read(dev_fd, super_block_buffer, BLOCK_SIZE))
if (BLOCK_SIZE != read(dev_fd, super_block_buffer, BLOCK_SIZE))
die("cannot read super block"); die("cannot read super block");
/* already initialized to: /* already initialized to:
namelen = 14; namelen = 14;
@ -667,7 +661,7 @@ static void read_tables(void)
errors_uncorrected = 1; errors_uncorrected = 1;
} }
get_dirsize(); get_dirsize();
if (show) { if (OPT_show) {
printf("%u inodes\n" printf("%u inodes\n"
"%u blocks\n" "%u blocks\n"
"Firstdatazone=%u (%u)\n" "Firstdatazone=%u (%u)\n"
@ -685,41 +679,35 @@ static void read_tables(void)
} }
} }
static struct minix1_inode *get_inode(unsigned nr) static void get_inode_common(unsigned nr, uint16_t i_mode)
{ {
struct minix1_inode *inode;
if (!nr || nr > INODES)
return NULL;
total++; total++;
inode = Inode1 + nr;
if (!inode_count[nr]) { if (!inode_count[nr]) {
if (!inode_in_use(nr)) { if (!inode_in_use(nr)) {
printf("Inode %d is marked as 'unused', but it is used " printf("Inode %d is marked as 'unused', but it is used "
"for file '%s'\n", nr, current_name); "for file '%s'\n", nr, current_name);
if (repair) { if (OPT_repair) {
if (ask("Mark as 'in use'", 1)) if (ask("Mark as 'in use'", 1))
mark_inode(nr); mark_inode(nr);
else else
errors_uncorrected = 1; errors_uncorrected = 1;
} }
} }
if (S_ISDIR(inode->i_mode)) if (S_ISDIR(i_mode))
directory++; directory++;
else if (S_ISREG(inode->i_mode)) else if (S_ISREG(i_mode))
regular++; regular++;
else if (S_ISCHR(inode->i_mode)) else if (S_ISCHR(i_mode))
chardev++; chardev++;
else if (S_ISBLK(inode->i_mode)) else if (S_ISBLK(i_mode))
blockdev++; blockdev++;
else if (S_ISLNK(inode->i_mode)) else if (S_ISLNK(i_mode))
symlinks++; symlinks++;
else if (S_ISSOCK(inode->i_mode)); else if (S_ISSOCK(i_mode));
else if (S_ISFIFO(inode->i_mode)); else if (S_ISFIFO(i_mode));
else { else {
printf("%s has mode %05o\n", current_name, inode->i_mode); printf("%s has mode %05o\n", current_name, i_mode);
} }
} else } else
links++; links++;
if (!++inode_count[nr]) { if (!++inode_count[nr]) {
@ -727,6 +715,16 @@ static struct minix1_inode *get_inode(unsigned nr)
inode_count[nr]--; inode_count[nr]--;
errors_uncorrected = 1; 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; return inode;
} }
@ -737,41 +735,8 @@ static struct minix2_inode *get_inode2(unsigned nr)
if (!nr || nr > INODES) if (!nr || nr > INODES)
return NULL; return NULL;
total++;
inode = Inode2 + nr; inode = Inode2 + nr;
if (!inode_count[nr]) { get_inode_common(nr, inode->i_mode);
if (!inode_in_use(nr)) {
printf("Inode %d is marked as 'unused', but it is used "
"for file '%s'\n", nr, current_name);
if (repair) {
if (ask("Mark as '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 {
printf("%s has mode %05o\n", current_name, inode->i_mode);
}
} else
links++;
if (!++inode_count[nr]) {
printf("Warning: inode count too big\n");
inode_count[nr]--;
errors_uncorrected = 1;
}
return inode; return inode;
} }
#endif #endif
@ -796,23 +761,17 @@ static void check_root2(void)
void check_root2(void); void check_root2(void);
#endif #endif
static int add_zone(uint16_t *znr, smallint *corrected) static int add_zone_common(int block, smallint *corrected)
{ {
int result;
int block;
result = 0;
block = check_zone_nr(znr, corrected);
if (!block) if (!block)
return 0; return 0;
if (zone_count[block]) { if (zone_count[block]) {
printf("Already used block is reused in file '%s'. ", printf("Already used block is reused in file '%s'. ",
current_name); current_name);
if (ask("Clear", 1)) { if (ask("Clear", 1)) {
*znr = 0;
block = 0; block = 0;
*corrected = 1; *corrected = 1;
return 0; return -1; /* "please zero out *znr" */
} }
} }
if (!zone_in_use(block)) { if (!zone_in_use(block)) {
@ -826,34 +785,30 @@ static int add_zone(uint16_t *znr, smallint *corrected)
return block; return block;
} }
static int add_zone(uint16_t *znr, smallint *corrected)
{
int block;
block = check_zone_nr(znr, corrected);
block = add_zone_common(block, corrected);
if (block == -1) {
*znr = 0;
block = 0;
}
return block;
}
#if ENABLE_FEATURE_MINIX2 #if ENABLE_FEATURE_MINIX2
static int add_zone2(uint32_t *znr, smallint *corrected) static int add_zone2(uint32_t *znr, smallint *corrected)
{ {
int result;
int block; int block;
result = 0;
block = check_zone_nr2(znr, corrected); block = check_zone_nr2(znr, corrected);
if (!block) block = add_zone_common(block, corrected);
return 0; if (block == -1) {
if (zone_count[block]) { *znr = 0;
printf("Already used block is reused in file '%s'. ", block = 0;
current_name);
if (ask("Clear", 1)) {
*znr = 0;
block = 0;
*corrected = 1;
return 0;
}
} }
if (!zone_in_use(block)) {
printf("Block %d in file '%s' is marked as 'unused'. ",
block, current_name);
if (ask("Correct", 1))
mark_zone(block);
}
if (!++zone_count[block])
zone_count[block]--;
return block; return block;
} }
#endif #endif
@ -1018,8 +973,8 @@ static void check_file(struct minix1_inode *dir, unsigned offset)
if (!inode) if (!inode)
return; return;
push_filename(name); push_filename(name);
if (list) { if (OPT_list) {
if (verbose) if (OPT_verbose)
printf("%6d %07o %3d ", ino, inode->i_mode, inode->i_nlinks); printf("%6d %07o %3d ", ino, inode->i_mode, inode->i_nlinks);
printf("%s%s\n", current_name, S_ISDIR(inode->i_mode) ? ":" : ""); printf("%s%s\n", current_name, S_ISDIR(inode->i_mode) ? ":" : "");
} }
@ -1068,8 +1023,8 @@ static void check_file2(struct minix2_inode *dir, unsigned offset)
if (!inode) if (!inode)
return; return;
push_filename(name); push_filename(name);
if (list) { if (OPT_list) {
if (verbose) if (OPT_verbose)
printf("%6d %07o %3d ", ino, inode->i_mode, inode->i_nlinks); printf("%6d %07o %3d ", ino, inode->i_mode, inode->i_nlinks);
printf("%s%s\n", current_name, S_ISDIR(inode->i_mode) ? ":" : ""); printf("%s%s\n", current_name, S_ISDIR(inode->i_mode) ? ":" : "");
} }
@ -1118,9 +1073,8 @@ static int bad_zone(int i)
{ {
char buffer[BLOCK_SIZE]; char buffer[BLOCK_SIZE];
if (BLOCK_SIZE * i != lseek(dev_fd, BLOCK_SIZE * i, SEEK_SET)) xlseek(dev_fd, BLOCK_SIZE * i, SEEK_SET);
die("seek failed in bad_zone"); return (BLOCK_SIZE != full_read(dev_fd, buffer, BLOCK_SIZE));
return (BLOCK_SIZE != read(dev_fd, buffer, BLOCK_SIZE));
} }
static void check_counts(void) static void check_counts(void)
@ -1128,7 +1082,7 @@ static void check_counts(void)
int i; int i;
for (i = 1; i <= INODES; i++) { for (i = 1; i <= INODES; i++) {
if (warn_mode && Inode1[i].i_mode && !inode_in_use(i)) { if (OPT_warn_mode && Inode1[i].i_mode && !inode_in_use(i)) {
printf("Inode %d has non-zero mode. ", i); printf("Inode %d has non-zero mode. ", i);
if (ask("Clear", 1)) { if (ask("Clear", 1)) {
Inode1[i].i_mode = 0; Inode1[i].i_mode = 0;
@ -1180,7 +1134,7 @@ static void check_counts2(void)
int i; int i;
for (i = 1; i <= INODES; i++) { for (i = 1; i <= INODES; i++) {
if (warn_mode && Inode2[i].i_mode && !inode_in_use(i)) { if (OPT_warn_mode && Inode2[i].i_mode && !inode_in_use(i)) {
printf("Inode %d has non-zero mode. ", i); printf("Inode %d has non-zero mode. ", i);
if (ask("Clear", 1)) { if (ask("Clear", 1)) {
Inode2[i].i_mode = 0; Inode2[i].i_mode = 0;
@ -1259,59 +1213,17 @@ int fsck_minix_main(int argc, char **argv)
INIT_G(); INIT_G();
if (INODE_SIZE1 * MINIX1_INODES_PER_BLOCK != BLOCK_SIZE) opt_complementary = "=1:ar"; /* one argument; -a assumes -r */
die("bad inode size"); getopt32(argv, OPTION_STR);
#if ENABLE_FEATURE_MINIX2 argv += optind;
if (INODE_SIZE2 * MINIX2_INODES_PER_BLOCK != BLOCK_SIZE) device_name = argv[0];
die("bad v2 inode size");
#endif
while (--argc != 0) {
argv++;
if (argv[0][0] != '-') {
if (device_name)
bb_show_usage();
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:
bb_show_usage();
}
}
}
}
if (!device_name)
bb_show_usage();
check_mount(); /* trying to check a mounted filesystem? */ check_mount(); /* trying to check a mounted filesystem? */
if (repair && !automatic) { if (OPT_manual) {
if (!isatty(0) || !isatty(1)) if (!isatty(0) || !isatty(1))
die("need terminal for interactive repairs"); die("need terminal for interactive repairs");
} }
dev_fd = xopen(device_name, repair ? O_RDWR : O_RDONLY); dev_fd = xopen(device_name, OPT_repair ? O_RDWR : O_RDONLY);
/*sync(); paranoia? */ /*sync(); paranoia? */
read_superblock(); read_superblock();
@ -1325,20 +1237,20 @@ int fsck_minix_main(int argc, char **argv)
printf("%s: %s\n", applet_name, bb_banner); printf("%s: %s\n", applet_name, bb_banner);
if (!(Super.s_state & MINIX_ERROR_FS) if (!(Super.s_state & MINIX_ERROR_FS)
&& (Super.s_state & MINIX_VALID_FS) && !force && (Super.s_state & MINIX_VALID_FS) && !OPT_force
) { ) {
if (repair) if (OPT_repair)
printf("%s is clean, check is skipped\n", device_name); printf("%s is clean, check is skipped\n", device_name);
return 0; return 0;
} else if (force) } else if (OPT_force)
printf("Forcing filesystem check on %s\n", device_name); printf("Forcing filesystem check on %s\n", device_name);
else if (repair) else if (OPT_repair)
printf("Filesystem on %s is dirty, needs checking\n", printf("Filesystem on %s is dirty, needs checking\n",
device_name); device_name);
read_tables(); read_tables();
if (repair && !automatic) { if (OPT_manual) {
tcgetattr(0, &sv_termios); tcgetattr(0, &sv_termios);
tmp = sv_termios; tmp = sv_termios;
tmp.c_lflag &= ~(ICANON | ECHO); tmp.c_lflag &= ~(ICANON | ECHO);
@ -1354,7 +1266,7 @@ int fsck_minix_main(int argc, char **argv)
check(); check();
} }
if (verbose) { if (OPT_verbose) {
int i, free_cnt; int i, free_cnt;
for (i = 1, free_cnt = 0; i <= INODES; i++) for (i = 1, free_cnt = 0; i <= INODES; i++)
@ -1383,10 +1295,10 @@ int fsck_minix_main(int argc, char **argv)
write_tables(); write_tables();
printf("FILE SYSTEM HAS BEEN CHANGED\n"); printf("FILE SYSTEM HAS BEEN CHANGED\n");
sync(); sync();
} else if (repair) } else if (OPT_repair)
write_super_block(); write_super_block();
if (repair && !automatic) if (OPT_manual)
tcsetattr(0, TCSANOW, &sv_termios); tcsetattr(0, TCSANOW, &sv_termios);
if (changed) if (changed)