/*
* util.c --- miscellaneous utilities
- *
+ *
* Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
*
* %Begin-Header%
*/
#include <stdlib.h>
+#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <ctype.h>
+#ifdef __linux__
+#include <sys/utsname.h>
+#endif
#ifdef HAVE_CONIO_H
#undef HAVE_TERMIOS_H
#ifdef HAVE_TERMIOS_H
#include <termios.h>
#endif
-#include <stdio.h>
-#define read_a_char() getchar()
#endif
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+
#include "e2fsck.h"
+extern e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
+
#include <sys/time.h>
#include <sys/resource.h>
void fatal_error(e2fsck_t ctx, const char *msg)
{
- if (msg)
+ if (msg)
fprintf (stderr, "e2fsck: %s\n", msg);
if (ctx->fs && ctx->fs->io) {
if (ctx->fs->io->magic == EXT2_ET_MAGIC_IO_CHANNEL)
char buf[256];
#ifdef DEBUG_ALLOCATE_MEMORY
- printf("Allocating %d bytes for %s...\n", size, description);
+ printf("Allocating %u bytes for %s...\n", size, description);
#endif
ret = malloc(size);
if (!ret) {
return ret;
}
+char *string_copy(e2fsck_t ctx EXT2FS_ATTR((unused)),
+ const char *str, int len)
+{
+ char *ret;
+
+ if (!str)
+ return NULL;
+ if (!len)
+ len = strlen(str);
+ ret = malloc(len+1);
+ if (ret) {
+ strncpy(ret, str, len);
+ ret[len] = 0;
+ }
+ return ret;
+}
+
+#ifndef HAVE_STRNLEN
+/*
+ * Incredibly, libc5 doesn't appear to have strnlen. So we have to
+ * provide our own.
+ */
+int e2fsck_strnlen(const char * s, int count)
+{
+ const char *cp = s;
+
+ while (count-- && *cp)
+ cp++;
+ return cp - s;
+}
+#endif
+
+#ifndef HAVE_CONIO_H
+static int read_a_char(void)
+{
+ char c;
+ int r;
+ int fail = 0;
+
+ while(1) {
+ if (e2fsck_global_ctx &&
+ (e2fsck_global_ctx->flags & E2F_FLAG_CANCEL)) {
+ return 3;
+ }
+ r = read(0, &c, 1);
+ if (r == 1)
+ return c;
+ if (fail++ > 100)
+ break;
+ }
+ return EOF;
+}
+#endif
+
int ask_yn(const char * string, int def)
{
int c;
#endif
if (def == 1)
- defstr = _("<y>");
+ defstr = _(_("<y>"));
else if (def == 0)
- defstr = _("<n>");
+ defstr = _(_("<n>"));
else
defstr = _(" (y/n)");
printf("%s%s? ", string, defstr);
fflush (stdout);
if ((c = read_a_char()) == EOF)
break;
+ if (c == 3) {
+#ifdef HAVE_TERMIOS_H
+ tcsetattr (0, TCSANOW, &termios);
+#endif
+ if (e2fsck_global_ctx &&
+ e2fsck_global_ctx->flags & E2F_FLAG_SETJMP_OK) {
+ puts("\n");
+ longjmp(e2fsck_global_ctx->abort_loc, 1);
+ }
+ puts(_("cancelled!\n"));
+ return 0;
+ }
if (strchr(short_yes, (char) c)) {
def = 1;
break;
break;
}
if (def)
- printf ("yes\n\n");
+ puts(_("yes\n"));
else
- printf ("no\n\n");
+ puts (_("no\n"));
#ifdef HAVE_TERMIOS_H
tcsetattr (0, TCSANOW, &termios);
#endif
{
ext2_filsys fs = ctx->fs;
errcode_t retval;
+ const char *old_op;
if (ctx->invalid_bitmaps) {
com_err(ctx->program_name, 0,
fatal_error(ctx, 0);
}
- ehandler_operation(_("reading inode and block bitmaps"));
+ old_op = ehandler_operation(_("reading inode and block bitmaps"));
retval = ext2fs_read_bitmaps(fs);
- ehandler_operation(0);
+ ehandler_operation(old_op);
if (retval) {
com_err(ctx->program_name, retval,
_("while retrying to read bitmaps for %s"),
{
ext2_filsys fs = ctx->fs;
errcode_t retval;
+ const char *old_op;
- if (ext2fs_test_bb_dirty(fs)) {
- ehandler_operation(_("writing block bitmaps"));
- retval = ext2fs_write_block_bitmap(fs);
- ehandler_operation(0);
- if (retval) {
- com_err(ctx->program_name, retval,
- _("while retrying to write block bitmaps for %s"),
- ctx->device_name);
- fatal_error(ctx, 0);
- }
- }
-
- if (ext2fs_test_ib_dirty(fs)) {
- ehandler_operation(_("writing inode bitmaps"));
- retval = ext2fs_write_inode_bitmap(fs);
- ehandler_operation(0);
- if (retval) {
- com_err(ctx->program_name, retval,
- _("while retrying to write inode bitmaps for %s"),
- ctx->device_name);
- fatal_error(ctx, 0);
- }
+ old_op = ehandler_operation(_("writing block and inode bitmaps"));
+ retval = ext2fs_write_bitmaps(fs);
+ ehandler_operation(old_op);
+ if (retval) {
+ com_err(ctx->program_name, retval,
+ _("while rewriting block and inode bitmaps for %s"),
+ ctx->device_name);
+ fatal_error(ctx, 0);
}
}
fprintf(stderr, _("\n\n%s: UNEXPECTED INCONSISTENCY; "
"RUN fsck MANUALLY.\n\t(i.e., without -a or -p options)\n"),
ctx->device_name);
+ ctx->flags |= E2F_FLAG_EXITING;
if (fs != NULL) {
fs->super->s_state |= EXT2_ERROR_FS;
ext2fs_mark_super_dirty(fs);
}
#ifdef RESOURCE_TRACK
-void init_resource_track(struct resource_track *track)
+void init_resource_track(struct resource_track *track, io_channel channel)
{
#ifdef HAVE_GETRUSAGE
struct rusage r;
#endif
-
+ io_stats io_start = 0;
+
track->brk_start = sbrk(0);
gettimeofday(&track->time_start, 0);
#ifdef HAVE_GETRUSAGE
track->user_start.tv_sec = track->user_start.tv_usec = 0;
track->system_start.tv_sec = track->system_start.tv_usec = 0;
#endif
+ track->bytes_read = 0;
+ track->bytes_written = 0;
+ if (channel && channel->manager && channel->manager->get_stats)
+ channel->manager->get_stats(channel, &io_start);
+ if (io_start) {
+ track->bytes_read = io_start->bytes_read;
+ track->bytes_written = io_start->bytes_written;
+ }
}
#ifdef __GNUC__
((float) (tv1->tv_usec - tv2->tv_usec)) / 1000000);
}
-void print_resource_track(const char *desc, struct resource_track *track)
+void print_resource_track(const char *desc, struct resource_track *track,
+ io_channel channel)
{
#ifdef HAVE_GETRUSAGE
struct rusage r;
printf("%s: ", desc);
#ifdef HAVE_MALLINFO
-#define kbytes(x) (((x) + 1023) / 1024)
-
+#define kbytes(x) (((unsigned long)(x) + 1023) / 1024)
+
malloc_info = mallinfo();
- printf(_("Memory used: %dk/%dk (%dk/%dk), "),
+ printf(_("Memory used: %luk/%luk (%luk/%luk), "),
kbytes(malloc_info.arena), kbytes(malloc_info.hblkhd),
kbytes(malloc_info.uordblks), kbytes(malloc_info.fordblks));
#else
- printf(_("Memory used: %d, "),
- (int) (((char *) sbrk(0)) - ((char *) track->brk_start)));
-#endif
+ printf(_("Memory used: %lu, "),
+ (unsigned long) (((char *) sbrk(0)) -
+ ((char *) track->brk_start)));
+#endif
#ifdef HAVE_GETRUSAGE
getrusage(RUSAGE_SELF, &r);
printf(_("elapsed time: %6.3f\n"),
timeval_subtract(&time_end, &track->time_start));
#endif
+#define mbytes(x) (((x) + 1048575) / 1048576)
+ if (channel && channel->manager && channel->manager->get_stats) {
+ io_stats delta = 0;
+ unsigned long long bytes_read = 0;
+ unsigned long long bytes_written = 0;
+
+ if (desc)
+ printf("%s: ", desc);
+
+ channel->manager->get_stats(channel, &delta);
+ if (delta) {
+ bytes_read = delta->bytes_read - track->bytes_read;
+ bytes_written = delta->bytes_written -
+ track->bytes_written;
+ }
+ printf("I/O read: %lluMB, write: %lluMB, rate: %.2fMB/s\n",
+ mbytes(bytes_read), mbytes(bytes_written),
+ (double)mbytes(bytes_read + bytes_written) /
+ timeval_subtract(&time_end, &track->time_start));
+ }
}
#endif /* RESOURCE_TRACK */
retval = ext2fs_read_inode(ctx->fs, ino, inode);
if (retval) {
com_err("ext2fs_read_inode", retval,
- _("while reading inode %ld in %s"), ino, proc);
+ _("while reading inode %lu in %s"), ino, proc);
+ fatal_error(ctx, 0);
+ }
+}
+
+void e2fsck_read_inode_full(e2fsck_t ctx, unsigned long ino,
+ struct ext2_inode *inode, int bufsize,
+ const char *proc)
+{
+ int retval;
+
+ retval = ext2fs_read_inode_full(ctx->fs, ino, inode, bufsize);
+ if (retval) {
+ com_err("ext2fs_read_inode_full", retval,
+ _("while reading inode %lu in %s"), ino, proc);
+ fatal_error(ctx, 0);
+ }
+}
+
+extern void e2fsck_write_inode_full(e2fsck_t ctx, unsigned long ino,
+ struct ext2_inode * inode, int bufsize,
+ const char *proc)
+{
+ int retval;
+
+ retval = ext2fs_write_inode_full(ctx->fs, ino, inode, bufsize);
+ if (retval) {
+ com_err("ext2fs_write_inode", retval,
+ _("while writing inode %lu in %s"), ino, proc);
fatal_error(ctx, 0);
}
}
retval = ext2fs_write_inode(ctx->fs, ino, inode);
if (retval) {
com_err("ext2fs_write_inode", retval,
- _("while writing inode %ld in %s"), ino, proc);
+ _("while writing inode %lu in %s"), ino, proc);
fatal_error(ctx, 0);
}
}
}
#endif
-blk_t get_backup_sb(ext2_filsys fs)
+blk_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs, const char *name,
+ io_manager manager)
{
- if (!fs || !fs->super)
- return 8193;
- return fs->super->s_blocks_per_group + fs->super->s_first_data_block;
+ struct ext2_super_block *sb;
+ io_channel io = NULL;
+ void *buf = NULL;
+ int blocksize;
+ blk_t superblock, ret_sb = 8193;
+
+ if (fs && fs->super) {
+ ret_sb = (fs->super->s_blocks_per_group +
+ fs->super->s_first_data_block);
+ if (ctx) {
+ ctx->superblock = ret_sb;
+ ctx->blocksize = fs->blocksize;
+ }
+ return ret_sb;
+ }
+
+ if (ctx) {
+ if (ctx->blocksize) {
+ ret_sb = ctx->blocksize * 8;
+ if (ctx->blocksize == 1024)
+ ret_sb++;
+ ctx->superblock = ret_sb;
+ return ret_sb;
+ }
+ ctx->superblock = ret_sb;
+ ctx->blocksize = 1024;
+ }
+
+ if (!name || !manager)
+ goto cleanup;
+
+ if (manager->open(name, 0, &io) != 0)
+ goto cleanup;
+
+ if (ext2fs_get_mem(SUPERBLOCK_SIZE, &buf))
+ goto cleanup;
+ sb = (struct ext2_super_block *) buf;
+
+ for (blocksize = EXT2_MIN_BLOCK_SIZE;
+ blocksize <= EXT2_MAX_BLOCK_SIZE ; blocksize *= 2) {
+ superblock = blocksize*8;
+ if (blocksize == 1024)
+ superblock++;
+ io_channel_set_blksize(io, blocksize);
+ if (io_channel_read_blk(io, superblock,
+ -SUPERBLOCK_SIZE, buf))
+ continue;
+#ifdef WORDS_BIGENDIAN
+ if (sb->s_magic == ext2fs_swab16(EXT2_SUPER_MAGIC))
+ ext2fs_swap_super(sb);
+#endif
+ if ((sb->s_magic == EXT2_SUPER_MAGIC) &&
+ (EXT2_BLOCK_SIZE(sb) == blocksize)) {
+ ret_sb = superblock;
+ if (ctx) {
+ ctx->superblock = superblock;
+ ctx->blocksize = blocksize;
+ }
+ break;
+ }
+ }
+
+cleanup:
+ if (io)
+ io_channel_close(io);
+ if (buf)
+ ext2fs_free_mem(&buf);
+ return (ret_sb);
}
/*
if (LINUX_S_ISDIR(mode))
return EXT2_FT_DIR;
-
+
if (LINUX_S_ISCHR(mode))
return EXT2_FT_CHRDEV;
-
+
if (LINUX_S_ISBLK(mode))
return EXT2_FT_BLKDEV;
-
+
if (LINUX_S_ISLNK(mode))
return EXT2_FT_SYMLINK;
if (LINUX_S_ISFIFO(mode))
return EXT2_FT_FIFO;
-
+
if (LINUX_S_ISSOCK(mode))
return EXT2_FT_SOCK;
-
+
return 0;
}
+
+#define STRIDE_LENGTH 8
+/*
+ * Helper function which zeros out _num_ blocks starting at _blk_. In
+ * case of an error, the details of the error is returned via _ret_blk_
+ * and _ret_count_ if they are non-NULL pointers. Returns 0 on
+ * success, and an error code on an error.
+ *
+ * As a special case, if the first argument is NULL, then it will
+ * attempt to free the static zeroizing buffer. (This is to keep
+ * programs that check for memory leaks happy.)
+ */
+errcode_t e2fsck_zero_blocks(ext2_filsys fs, blk_t blk, int num,
+ blk_t *ret_blk, int *ret_count)
+{
+ int j, count, next_update, next_update_incr;
+ static char *buf;
+ errcode_t retval;
+
+ /* If fs is null, clean up the static buffer and return */
+ if (!fs) {
+ if (buf) {
+ free(buf);
+ buf = 0;
+ }
+ return 0;
+ }
+ /* Allocate the zeroizing buffer if necessary */
+ if (!buf) {
+ buf = malloc(fs->blocksize * STRIDE_LENGTH);
+ if (!buf) {
+ com_err("malloc", ENOMEM,
+ _("while allocating zeroizing buffer"));
+ exit(1);
+ }
+ memset(buf, 0, fs->blocksize * STRIDE_LENGTH);
+ }
+ /* OK, do the write loop */
+ next_update = 0;
+ next_update_incr = num / 100;
+ if (next_update_incr < 1)
+ next_update_incr = 1;
+ for (j = 0; j < num; j += STRIDE_LENGTH, blk += STRIDE_LENGTH) {
+ count = num - j;
+ if (count > STRIDE_LENGTH)
+ count = STRIDE_LENGTH;
+ retval = io_channel_write_blk(fs->io, blk, count, buf);
+ if (retval) {
+ if (ret_count)
+ *ret_count = count;
+ if (ret_blk)
+ *ret_blk = blk;
+ return retval;
+ }
+ }
+ return 0;
+}
+
+/*
+ * Check to see if a filesystem is in /proc/filesystems.
+ * Returns 1 if found, 0 if not
+ */
+int fs_proc_check(const char *fs_name)
+{
+ FILE *f;
+ char buf[80], *cp, *t;
+
+ f = fopen("/proc/filesystems", "r");
+ if (!f)
+ return (0);
+ while (!feof(f)) {
+ if (!fgets(buf, sizeof(buf), f))
+ break;
+ cp = buf;
+ if (!isspace(*cp)) {
+ while (*cp && !isspace(*cp))
+ cp++;
+ }
+ while (*cp && isspace(*cp))
+ cp++;
+ if ((t = strchr(cp, '\n')) != NULL)
+ *t = 0;
+ if ((t = strchr(cp, '\t')) != NULL)
+ *t = 0;
+ if ((t = strchr(cp, ' ')) != NULL)
+ *t = 0;
+ if (!strcmp(fs_name, cp)) {
+ fclose(f);
+ return (1);
+ }
+ }
+ fclose(f);
+ return (0);
+}
+
+/*
+ * Check to see if a filesystem is available as a module
+ * Returns 1 if found, 0 if not
+ */
+int check_for_modules(const char *fs_name)
+{
+#ifdef __linux__
+ struct utsname uts;
+ FILE *f;
+ char buf[1024], *cp, *t;
+ int i;
+
+ if (uname(&uts))
+ return (0);
+ snprintf(buf, sizeof(buf), "/lib/modules/%s/modules.dep", uts.release);
+
+ f = fopen(buf, "r");
+ if (!f)
+ return (0);
+ while (!feof(f)) {
+ if (!fgets(buf, sizeof(buf), f))
+ break;
+ if ((cp = strchr(buf, ':')) != NULL)
+ *cp = 0;
+ else
+ continue;
+ if ((cp = strrchr(buf, '/')) != NULL)
+ cp++;
+ else
+ cp = buf;
+ i = strlen(cp);
+ if (i > 3) {
+ t = cp + i - 3;
+ if (!strcmp(t, ".ko"))
+ *t = 0;
+ }
+ if (!strcmp(cp, fs_name)) {
+ fclose(f);
+ return (1);
+ }
+ }
+ fclose(f);
+#endif /* __linux__ */
+ return (0);
+}
+
+/*
+ * Helper function that does the right thing if write returns a
+ * partial write, or an EGAIN/EINTR error.
+ */
+int write_all(int fd, char *buf, size_t count)
+{
+ ssize_t ret;
+ int c = 0;
+
+ while (count > 0) {
+ ret = write(fd, buf, count);
+ if (ret < 0) {
+ if ((errno == EAGAIN) || (errno == EINTR))
+ continue;
+ return -1;
+ }
+ count -= ret;
+ buf += ret;
+ c += ret;
+ }
+ return c;
+}
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff