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| Rev | Author | Line No. | Line |
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| 4408 | svoboda | 1 | /* |
| 2 | * Copyright (c) 2009 Jiri Svoboda |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | #include <stdio.h> |
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| 30 | #include <stdlib.h> |
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| 4496 | decky | 31 | #include <string.h> |
| 4408 | svoboda | 32 | #include "config.h" |
| 33 | #include "util.h" |
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| 34 | #include "errors.h" |
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| 35 | #include "entry.h" |
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| 36 | #include "bdd.h" |
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| 37 | #include "cmds.h" |
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| 38 | |||
| 39 | #include <libblock.h> |
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| 40 | #include <devmap.h> |
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| 41 | #include <errno.h> |
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| 42 | |||
| 43 | #define BLOCK_SIZE 512 |
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| 44 | #define BPR 16 |
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| 45 | |||
| 46 | static const char *cmdname = "bdd"; |
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| 47 | |||
| 48 | /* Dispays help for bdd in various levels */ |
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| 49 | void help_cmd_bdd(unsigned int level) |
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| 50 | { |
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| 51 | static char helpfmt[] = |
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| 52 | "Usage: %s <device> [<block_number> [<bytes>]]\n"; |
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| 53 | if (level == HELP_SHORT) { |
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| 54 | printf("'%s' dump block device contents.\n", cmdname); |
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| 55 | } else { |
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| 56 | help_cmd_bdd(HELP_SHORT); |
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| 57 | printf(helpfmt, cmdname); |
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| 58 | } |
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| 59 | return; |
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| 60 | } |
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| 61 | |||
| 62 | /* Main entry point for bdd, accepts an array of arguments */ |
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| 63 | int cmd_bdd(char **argv) |
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| 64 | { |
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| 65 | unsigned int argc; |
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| 66 | unsigned int i, j; |
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| 67 | dev_handle_t handle; |
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| 68 | block_t *block; |
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| 69 | uint8_t *blk; |
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| 70 | size_t size, bytes, rows; |
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| 71 | int rc; |
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| 72 | bn_t boff; |
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| 73 | uint8_t b; |
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| 74 | |||
| 75 | /* Count the arguments */ |
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| 76 | for (argc = 0; argv[argc] != NULL; argc ++); |
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| 77 | |||
| 78 | if (argc < 2 || argc > 4) { |
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| 79 | printf("%s - incorrect number of arguments.\n", cmdname); |
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| 80 | return CMD_FAILURE; |
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| 81 | } |
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| 82 | |||
| 83 | if (argc >= 3) |
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| 84 | boff = strtol(argv[2], NULL, 0); |
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| 85 | else |
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| 86 | boff = 0; |
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| 87 | |||
| 88 | if (argc >= 4) |
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| 89 | size = strtol(argv[3], NULL, 0); |
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| 90 | else |
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| 91 | size = 256; |
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| 92 | |||
| 93 | rc = devmap_device_get_handle(argv[1], &handle, 0); |
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| 94 | if (rc != EOK) { |
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| 95 | printf("Error: could not resolve device `%s'.\n", argv[1]); |
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| 96 | return CMD_FAILURE; |
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| 97 | } |
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| 98 | |||
| 99 | rc = block_init(handle, BLOCK_SIZE); |
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| 100 | if (rc != EOK) { |
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| 101 | printf("Error: could not init libblock.\n"); |
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| 102 | return CMD_FAILURE; |
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| 103 | } |
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| 104 | |||
| 105 | rc = block_cache_init(handle, BLOCK_SIZE, 2); |
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| 106 | if (rc != EOK) { |
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| 107 | printf("Error: could not init block cache.\n"); |
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| 108 | return CMD_FAILURE; |
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| 109 | } |
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| 110 | |||
| 111 | while (size > 0) { |
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| 112 | block = block_get(handle, boff, 0); |
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| 113 | blk = (uint8_t *) block->data; |
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| 114 | |||
| 115 | bytes = (size < BLOCK_SIZE) ? size : BLOCK_SIZE; |
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| 116 | rows = (bytes + BPR - 1) / BPR; |
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| 117 | |||
| 118 | for (j = 0; j < rows; j++) { |
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| 119 | for (i = 0; i < BPR; i++) { |
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| 120 | if (j * BPR + i < bytes) |
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| 121 | printf("%02x ", blk[j * BPR + i]); |
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| 122 | else |
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| 123 | printf(" "); |
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| 124 | } |
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| 125 | putchar('\t'); |
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| 126 | |||
| 127 | for (i = 0; i < BPR; i++) { |
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| 128 | if (j * BPR + i < bytes) { |
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| 129 | b = blk[j * BPR + i]; |
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| 130 | if (b >= 32 && b < 127) |
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| 131 | putchar(b); |
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| 132 | else |
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| 133 | putchar(' '); |
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| 134 | } else { |
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| 135 | putchar(' '); |
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| 136 | } |
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| 137 | } |
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| 138 | putchar('\n'); |
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| 139 | } |
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| 140 | |||
| 141 | block_put(block); |
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| 142 | |||
| 143 | if (size > rows * BPR) |
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| 144 | size -= rows * BPR; |
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| 145 | else |
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| 146 | size = 0; |
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| 147 | |||
| 148 | boff += rows * BPR; |
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| 149 | } |
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| 150 | |||
| 151 | block_fini(handle); |
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| 152 | |||
| 153 | return CMD_SUCCESS; |
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| 154 | } |