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/*
* ehandler.c --- handle bad block errors which come up during the
* course of an e2fsck session.
*
* Copyright (C) 1994 Theodore Ts'o. This file may be redistributed
* under the terms of the GNU Public License.
*/
#include "config.h"
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <ctype.h>
#include <termios.h>
#include "e2fsck.h"
#include <sys/time.h>
#include <sys/resource.h>
static const char *operation;
static errcode_t e2fsck_handle_read_error(io_channel channel,
unsigned long block,
int count,
void *data,
size_t size EXT2FS_ATTR((unused)),
int actual EXT2FS_ATTR((unused)),
errcode_t error)
{
int i;
char *p;
ext2_filsys fs = (ext2_filsys) channel->app_data;
errcode_t retval;
e2fsck_t ctx;
ctx = (e2fsck_t) fs->priv_data;
if (ctx->flags & E2F_FLAG_EXITING)
return 0;
/*
* If more than one block was read, try reading each block
* separately. We could use the actual bytes read to figure
* out where to start, but we don't bother.
*/
if (count > 1) {
p = (char *) data;
for (i=0; i < count; i++, p += channel->block_size, block++) {
error = io_channel_read_blk64(channel, block,
1, p);
if (error)
return error;
}
return 0;
}
if (operation)
printf(_("Error reading block %lu (%s) while %s. "), block,
error_message(error), operation);
else
printf(_("Error reading block %lu (%s). "), block,
error_message(error));
preenhalt(ctx);
/* Don't rewrite a block past the end of the FS. */
if (block >= ext2fs_blocks_count(fs->super))
return 0;
if (ask(ctx, _("Ignore error"), 1)) {
if (ask(ctx, _("Force rewrite"), 1)) {
retval = io_channel_write_blk64(channel, block,
count, data);
if (retval)
printf(_("Error rewriting block %lu (%s)\n"),
block, error_message(retval));
}
return 0;
}
return error;
}
static errcode_t e2fsck_handle_write_error(io_channel channel,
unsigned long block,
int count,
const void *data,
size_t size EXT2FS_ATTR((unused)),
int actual EXT2FS_ATTR((unused)),
errcode_t error)
{
int i;
const char *p;
ext2_filsys fs = (ext2_filsys) channel->app_data;
e2fsck_t ctx;
ctx = (e2fsck_t) fs->priv_data;
if (ctx->flags & E2F_FLAG_EXITING)
return 0;
/*
* If more than one block was written, try writing each block
* separately. We could use the actual bytes read to figure
* out where to start, but we don't bother.
*/
if (count > 1) {
p = (const char *) data;
for (i=0; i < count; i++, p += channel->block_size, block++) {
error = io_channel_write_blk64(channel, block,
1, p);
if (error)
return error;
}
return 0;
}
if (operation)
printf(_("Error writing block %lu (%s) while %s. "), block,
error_message(error), operation);
else
printf(_("Error writing block %lu (%s). "), block,
error_message(error));
preenhalt(ctx);
if (ask(ctx, _("Ignore error"), 1))
return 0;
return error;
}
const char *ehandler_operation(const char *op)
{
const char *ret = operation;
operation = op;
return ret;
}
void ehandler_init(io_channel channel)
{
channel->read_error = e2fsck_handle_read_error;
channel->write_error = e2fsck_handle_write_error;
}
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