*
* (C) 1991, 1992 Linus Torvalds.
*
- * Licensed under GPLv2, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2, see file LICENSE in this source tree.
*/
/*
* 28.02.93 - added support for different directory entry sizes..
*
* Sat Mar 6 18:59:42 1993, faith@cs.unc.edu: Output namelen with
- * super-block information
+ * superblock information
*
* Sat Oct 9 11:17:11 1993, faith@cs.unc.edu: make exit status conform
* to that required by fsutil
* -a for automatic repairs (not implemented)
* -r for repairs (interactive) (not implemented)
* -v for verbose (tells how many files)
- * -s for super-block info
+ * -s for superblock info
* -m for minix-like "mode not cleared" warnings
* -f force filesystem check even if filesystem marked as valid
*
* enforced (but it's not much fun on a character device :-).
*/
+//usage:#define fsck_minix_trivial_usage
+//usage: "[-larvsmf] BLOCKDEV"
+//usage:#define fsck_minix_full_usage "\n\n"
+//usage: "Check MINIX filesystem\n"
+//usage: "\n -l List all filenames"
+//usage: "\n -r Perform interactive repairs"
+//usage: "\n -a Perform automatic repairs"
+//usage: "\n -v Verbose"
+//usage: "\n -s Output superblock information"
+//usage: "\n -m Show \"mode not cleared\" warnings"
+//usage: "\n -f Force file system check"
+
#include <mntent.h>
#include "libbb.h"
#include "minix.h"
enum { MAX_DEPTH = 32 };
+enum { dev_fd = 3 };
+
struct globals {
- int dev_fd;
#if ENABLE_FEATURE_MINIX2
smallint version2;
#endif
/* Bigger stuff */
struct termios sv_termios;
- char super_block_buffer[BLOCK_SIZE];
+ char superblock_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];)
+ IF_FEATURE_MINIX2(char add_zone_tind_blk[BLOCK_SIZE];)
char check_file_blk[BLOCK_SIZE];
/* 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 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 superblock_buffer (G.superblock_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 Inode1 (((struct minix1_inode *) inode_buffer)-1)
#define Inode2 (((struct minix2_inode *) inode_buffer)-1)
-#define Super (*(struct minix_super_block *)(super_block_buffer))
+#define Super (*(struct minix_superblock *)(superblock_buffer))
#if ENABLE_FEATURE_MINIX2
# define ZONES ((unsigned)(version2 ? Super.s_zones : Super.s_nzones))
return (size + n-1) / n;
}
-#if ENABLE_FEATURE_MINIX2
-#define INODE_BLOCKS div_roundup(INODES, (version2 ? MINIX2_INODES_PER_BLOCK \
- : MINIX1_INODES_PER_BLOCK))
+#if !ENABLE_FEATURE_MINIX2
+#define INODE_BLOCKS div_roundup(INODES, MINIX1_INODES_PER_BLOCK)
#else
-#define INODE_BLOCKS div_roundup(INODES, MINIX1_INODES_PER_BLOCK)
+#define INODE_BLOCKS div_roundup(INODES, \
+ (version2 ? MINIX2_INODES_PER_BLOCK : MINIX1_INODES_PER_BLOCK))
#endif
-#define INODE_BUFFER_SIZE (INODE_BLOCKS * BLOCK_SIZE)
-#define NORM_FIRSTZONE (2 + IMAPS + ZMAPS + INODE_BLOCKS)
+#define INODE_BUFFER_SIZE (INODE_BLOCKS * BLOCK_SIZE)
+#define NORM_FIRSTZONE (2 + IMAPS + ZMAPS + INODE_BLOCKS)
/* Before you ask "where they come from?": */
/* setbit/clrbit are supplied by sys/param.h */
static void recursive_check2(unsigned ino);
#endif
-static void die(const char *str) ATTRIBUTE_NORETURN;
+static void die(const char *str) NORETURN;
static void die(const char *str)
{
if (termios_set)
- tcsetattr(0, TCSANOW, &sv_termios);
+ tcsetattr_stdin_TCSANOW(&sv_termios);
bb_error_msg_and_die("%s", str);
}
}
printf(def ? "%s (y/n)? " : "%s (n/y)? ", string);
for (;;) {
- fflush(stdout);
+ fflush_all();
c = getchar();
if (c == EOF) {
if (!def)
errors_uncorrected = 1;
return def;
}
- c = toupper(c);
- if (c == 'Y') {
+ if (c == '\n')
+ break;
+ c |= 0x20; /* tolower */
+ if (c == 'y') {
def = 1;
break;
- } else if (c == 'N') {
+ }
+ if (c == 'n') {
def = 0;
break;
- } else if (c == ' ' || c == '\n')
- break;
+ }
}
if (def)
printf("y\n");
*/
static void check_mount(void)
{
- FILE *f;
- struct mntent *mnt;
- int cont;
- int fd;
-//XXX:FIXME use find_mount_point()
- f = setmntent(MOUNTED, "r");
- if (f == NULL)
- return;
- while ((mnt = getmntent(f)) != NULL)
- if (strcmp(device_name, mnt->mnt_fsname) == 0)
- break;
- endmntent(f);
- if (!mnt)
- return;
-
- /*
- * If the root is mounted read-only, then /etc/mtab is
- * probably not correct; so we won't issue a warning based on
- * it.
- */
- fd = open(MOUNTED, O_RDWR);
- if (fd < 0 && errno == EROFS)
- return;
- close(fd);
-
- printf("%s is mounted. ", device_name);
- cont = 0;
- if (isatty(0) && isatty(1))
- cont = ask("Do you really want to continue", 0);
- if (!cont) {
- printf("Check aborted\n");
- exit(EXIT_SUCCESS);
+ if (find_mount_point(device_name, 0)) {
+ int cont;
+#if ENABLE_FEATURE_MTAB_SUPPORT
+ /*
+ * If the root is mounted read-only, then /etc/mtab is
+ * probably not correct; so we won't issue a warning based on
+ * it.
+ */
+ int fd = open(bb_path_mtab_file, O_RDWR);
+
+ if (fd < 0 && errno == EROFS)
+ return;
+ close(fd);
+#endif
+ printf("%s is mounted. ", device_name);
+ cont = 0;
+ if (isatty(0) && isatty(1))
+ cont = ask("Do you really want to continue", 0);
+ if (!cont) {
+ printf("Check aborted\n");
+ exit(EXIT_SUCCESS);
+ }
}
}
}
#endif
-static void write_super_block(void)
+static void write_superblock(void)
{
/*
* Set the state of the filesystem based on whether or not there
Super.s_state &= ~MINIX_ERROR_FS;
xlseek(dev_fd, BLOCK_SIZE, SEEK_SET);
- if (BLOCK_SIZE != full_write(dev_fd, super_block_buffer, BLOCK_SIZE))
- die("cannot write super-block");
+ if (BLOCK_SIZE != full_write(dev_fd, superblock_buffer, BLOCK_SIZE))
+ die("can't write superblock");
}
static void write_tables(void)
{
- write_super_block();
+ write_superblock();
if (IMAPS * BLOCK_SIZE != write(dev_fd, inode_map, IMAPS * BLOCK_SIZE))
- die("cannot write inode map");
+ die("can't write inode map");
if (ZMAPS * BLOCK_SIZE != write(dev_fd, zone_map, ZMAPS * BLOCK_SIZE))
- die("cannot write zone map");
+ die("can't write zone map");
if (INODE_BUFFER_SIZE != write(dev_fd, inode_buffer, INODE_BUFFER_SIZE))
- die("cannot write inodes");
+ die("can't write inodes");
}
static void get_dirsize(void)
static void read_superblock(void)
{
xlseek(dev_fd, BLOCK_SIZE, SEEK_SET);
- if (BLOCK_SIZE != full_read(dev_fd, super_block_buffer, BLOCK_SIZE))
- die("cannot read super block");
+ if (BLOCK_SIZE != full_read(dev_fd, superblock_buffer, BLOCK_SIZE))
+ die("can't read superblock");
/* already initialized to:
namelen = 14;
dirsize = 16;
version2 = 1;
#endif
} else
- die("bad magic number in super-block");
+ die("bad magic number in superblock");
if (ZONESIZE != 0 || BLOCK_SIZE != 1024)
die("only 1k blocks/zones supported");
if (IMAPS * BLOCK_SIZE * 8 < INODES + 1)
- die("bad s_imap_blocks field in super-block");
+ die("bad s_imap_blocks field in superblock");
if (ZMAPS * BLOCK_SIZE * 8 < ZONES - FIRSTZONE + 1)
- die("bad s_zmap_blocks field in super-block");
+ die("bad s_zmap_blocks field in superblock");
}
static void read_tables(void)
inode_count = xmalloc(INODES + 1);
zone_count = xmalloc(ZONES);
if (IMAPS * BLOCK_SIZE != read(dev_fd, inode_map, IMAPS * BLOCK_SIZE))
- die("cannot read inode map");
+ die("can't read inode map");
if (ZMAPS * BLOCK_SIZE != read(dev_fd, zone_map, ZMAPS * BLOCK_SIZE))
- die("cannot read zone map");
+ die("can't read zone map");
if (INODE_BUFFER_SIZE != read(dev_fd, inode_buffer, INODE_BUFFER_SIZE))
- die("cannot read inodes");
+ die("can't read inodes");
if (NORM_FIRSTZONE != FIRSTZONE) {
printf("warning: firstzone!=norm_firstzone\n");
errors_uncorrected = 1;
if (inode_count[i] > 1) /* have we counted this file already? */
return;
inode = Inode1 + i;
- if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
- !S_ISLNK(inode->i_mode)) return;
+ if (!S_ISDIR(inode->i_mode)
+ && !S_ISREG(inode->i_mode)
+ && !S_ISLNK(inode->i_mode)
+ ) {
+ return;
+ }
for (i = 0; i < 7; i++)
add_zone(i + inode->i_zone, &changed);
add_zone_ind(7 + inode->i_zone, &changed);
#endif
int fsck_minix_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int fsck_minix_main(int argc ATTRIBUTE_UNUSED, char **argv)
+int fsck_minix_main(int argc UNUSED_PARAM, char **argv)
{
struct termios tmp;
int retcode = 0;
if (!isatty(0) || !isatty(1))
die("need terminal for interactive repairs");
}
- dev_fd = xopen(device_name, OPT_repair ? O_RDWR : O_RDONLY);
+ xmove_fd(xopen(device_name, OPT_repair ? O_RDWR : O_RDONLY), dev_fd);
/*sync(); paranoia? */
read_superblock();
tcgetattr(0, &sv_termios);
tmp = sv_termios;
tmp.c_lflag &= ~(ICANON | ECHO);
- tcsetattr(0, TCSANOW, &tmp);
+ tcsetattr_stdin_TCSANOW(&tmp);
termios_set = 1;
}
printf("FILE SYSTEM HAS BEEN CHANGED\n");
sync();
} else if (OPT_repair)
- write_super_block();
+ write_superblock();
if (OPT_manual)
- tcsetattr(0, TCSANOW, &sv_termios);
+ tcsetattr_stdin_TCSANOW(&sv_termios);
if (changed)
retcode += 3;
projects / oweals / busybox.git / blobdiff