0,0 → 1,153 |
/* |
* Copyright (c) 2009 Jiri Svoboda |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
|
#include <stdio.h> |
#include <stdlib.h> |
#include "config.h" |
#include "util.h" |
#include "errors.h" |
#include "entry.h" |
#include "bdd.h" |
#include "cmds.h" |
|
#include <libblock.h> |
#include <devmap.h> |
#include <errno.h> |
|
#define BLOCK_SIZE 512 |
#define BPR 16 |
|
static const char *cmdname = "bdd"; |
|
/* Dispays help for bdd in various levels */ |
void help_cmd_bdd(unsigned int level) |
{ |
static char helpfmt[] = |
"Usage: %s <device> [<block_number> [<bytes>]]\n"; |
if (level == HELP_SHORT) { |
printf("'%s' dump block device contents.\n", cmdname); |
} else { |
help_cmd_bdd(HELP_SHORT); |
printf(helpfmt, cmdname); |
} |
return; |
} |
|
/* Main entry point for bdd, accepts an array of arguments */ |
int cmd_bdd(char **argv) |
{ |
unsigned int argc; |
unsigned int i, j; |
dev_handle_t handle; |
block_t *block; |
uint8_t *blk; |
size_t size, bytes, rows; |
int rc; |
bn_t boff; |
uint8_t b; |
|
/* Count the arguments */ |
for (argc = 0; argv[argc] != NULL; argc ++); |
|
if (argc < 2 || argc > 4) { |
printf("%s - incorrect number of arguments.\n", cmdname); |
return CMD_FAILURE; |
} |
|
if (argc >= 3) |
boff = strtol(argv[2], NULL, 0); |
else |
boff = 0; |
|
if (argc >= 4) |
size = strtol(argv[3], NULL, 0); |
else |
size = 256; |
|
rc = devmap_device_get_handle(argv[1], &handle, 0); |
if (rc != EOK) { |
printf("Error: could not resolve device `%s'.\n", argv[1]); |
return CMD_FAILURE; |
} |
|
rc = block_init(handle, BLOCK_SIZE); |
if (rc != EOK) { |
printf("Error: could not init libblock.\n"); |
return CMD_FAILURE; |
} |
|
rc = block_cache_init(handle, BLOCK_SIZE, 2); |
if (rc != EOK) { |
printf("Error: could not init block cache.\n"); |
return CMD_FAILURE; |
} |
|
while (size > 0) { |
block = block_get(handle, boff, 0); |
blk = (uint8_t *) block->data; |
|
bytes = (size < BLOCK_SIZE) ? size : BLOCK_SIZE; |
rows = (bytes + BPR - 1) / BPR; |
|
for (j = 0; j < rows; j++) { |
for (i = 0; i < BPR; i++) { |
if (j * BPR + i < bytes) |
printf("%02x ", blk[j * BPR + i]); |
else |
printf(" "); |
} |
putchar('\t'); |
|
for (i = 0; i < BPR; i++) { |
if (j * BPR + i < bytes) { |
b = blk[j * BPR + i]; |
if (b >= 32 && b < 127) |
putchar(b); |
else |
putchar(' '); |
} else { |
putchar(' '); |
} |
} |
putchar('\n'); |
} |
|
block_put(block); |
|
if (size > rows * BPR) |
size -= rows * BPR; |
else |
size = 0; |
|
boff += rows * BPR; |
} |
|
block_fini(handle); |
|
return CMD_SUCCESS; |
} |