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/******************************************************************************
*******************************************************************************
**
** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
** Copyright (C) 2004 Red Hat, Inc. All rights reserved.
**
** This copyrighted material is made available to anyone wishing to use,
** modify, copy, or redistribute it subject to the terms and conditions
** of the GNU General Public License v.2.
**
*******************************************************************************
******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <stdint.h>
#include <inttypes.h>
#include "gfs_debug.h"
#include "block_device.h"
/**
* find_device_size -
*
*/
void
find_device_size(void)
{
device_size = lseek(device_fd, 0, SEEK_END);
if (device_size < 0)
die("can't determine device size: %s\n",
strerror(errno));
}
/**
* get_block -
* @bn:
* @fatal:
*
* Returns: the data in the block (needs to be freed)
*/
char *
get_block(uint64_t bn, int fatal)
{
char *data;
if (device_size < (bn + 1) * block_size) {
fprintf(stderr, "%s: block %"PRIu64" is off the end of the device\n",
prog_name, bn);
if (fatal)
exit(EXIT_FAILURE);
}
data = malloc(block_size);
if (!data)
die("out of memory (%s, %u)\n",
__FILE__, __LINE__);
do_lseek(device_fd, bn * block_size);
do_read(device_fd, data, block_size);
return data;
}
/**
* print_size -
*
*/
void
print_size(void)
{
printf("%"PRIu64"\n", device_size);
}
/**
* print_hexblock -
*
*/
void
print_hexblock(void)
{
char *data;
unsigned int x;
if (!block_size)
die("no block size set\n");
data = get_block(block_number, TRUE);
for (x = 0; x < block_size; x++) {
printf("%.2X", ((unsigned char *)data)[x]);
if (x % 16 == 15)
printf("\n");
else
printf(" ");
}
if (x % 16)
printf("\n");
free(data);
}
/**
* print_rawblock -
*
*/
void
print_rawblock(void)
{
char *data;
if (!block_size)
die("no block size set\n");
data = get_block(block_number, TRUE);
do_write(STDOUT_FILENO, data, block_size);
free(data);
}

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