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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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| 31 | #include "config.h" |
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| 32 | #include "util.h" |
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| 33 | #include "errors.h" |
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| 34 | #include "entry.h" |
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| 35 | #include "bdd.h" |
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| 36 | #include "cmds.h" |
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| 37 | |||
| 38 | #include <libblock.h> |
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| 39 | #include <devmap.h> |
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| 40 | #include <errno.h> |
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| 41 | |||
| 42 | #define BLOCK_SIZE 512 |
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| 43 | #define BPR 16 |
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| 44 | |||
| 45 | static const char *cmdname = "bdd"; |
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| 46 | |||
| 47 | /* Dispays help for bdd in various levels */ |
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| 48 | void help_cmd_bdd(unsigned int level) |
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| 49 | { |
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| 50 | static char helpfmt[] = |
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| 51 | "Usage: %s <device> [<block_number> [<bytes>]]\n"; |
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| 52 | if (level == HELP_SHORT) { |
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| 53 | printf("'%s' dump block device contents.\n", cmdname); |
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| 54 | } else { |
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| 55 | help_cmd_bdd(HELP_SHORT); |
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| 56 | printf(helpfmt, cmdname); |
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| 57 | } |
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| 58 | return; |
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| 59 | } |
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| 60 | |||
| 61 | /* Main entry point for bdd, accepts an array of arguments */ |
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| 62 | int cmd_bdd(char **argv) |
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| 63 | { |
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| 64 | unsigned int argc; |
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| 65 | unsigned int i, j; |
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| 66 | dev_handle_t handle; |
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| 67 | block_t *block; |
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| 68 | uint8_t *blk; |
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| 69 | size_t size, bytes, rows; |
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| 70 | int rc; |
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| 71 | bn_t boff; |
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| 72 | uint8_t b; |
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| 73 | |||
| 74 | /* Count the arguments */ |
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| 75 | for (argc = 0; argv[argc] != NULL; argc ++); |
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| 76 | |||
| 77 | if (argc < 2 || argc > 4) { |
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| 78 | printf("%s - incorrect number of arguments.\n", cmdname); |
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| 79 | return CMD_FAILURE; |
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| 80 | } |
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| 81 | |||
| 82 | if (argc >= 3) |
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| 83 | boff = strtol(argv[2], NULL, 0); |
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| 84 | else |
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| 85 | boff = 0; |
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| 86 | |||
| 87 | if (argc >= 4) |
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| 88 | size = strtol(argv[3], NULL, 0); |
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| 89 | else |
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| 90 | size = 256; |
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| 91 | |||
| 92 | rc = devmap_device_get_handle(argv[1], &handle, 0); |
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| 93 | if (rc != EOK) { |
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| 94 | printf("Error: could not resolve device `%s'.\n", argv[1]); |
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| 95 | return CMD_FAILURE; |
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| 96 | } |
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| 97 | |||
| 98 | rc = block_init(handle, BLOCK_SIZE); |
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| 99 | if (rc != EOK) { |
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| 100 | printf("Error: could not init libblock.\n"); |
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| 101 | return CMD_FAILURE; |
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| 102 | } |
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| 103 | |||
| 104 | rc = block_cache_init(handle, BLOCK_SIZE, 2); |
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| 105 | if (rc != EOK) { |
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| 106 | printf("Error: could not init block cache.\n"); |
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| 107 | return CMD_FAILURE; |
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| 108 | } |
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| 109 | |||
| 110 | while (size > 0) { |
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| 111 | block = block_get(handle, boff, 0); |
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| 112 | blk = (uint8_t *) block->data; |
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| 113 | |||
| 114 | bytes = (size < BLOCK_SIZE) ? size : BLOCK_SIZE; |
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| 115 | rows = (bytes + BPR - 1) / BPR; |
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| 116 | |||
| 117 | for (j = 0; j < rows; j++) { |
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| 118 | for (i = 0; i < BPR; i++) { |
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| 119 | if (j * BPR + i < bytes) |
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| 120 | printf("%02x ", blk[j * BPR + i]); |
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| 121 | else |
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| 122 | printf(" "); |
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| 123 | } |
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| 124 | putchar('\t'); |
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| 125 | |||
| 126 | for (i = 0; i < BPR; i++) { |
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| 127 | if (j * BPR + i < bytes) { |
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| 128 | b = blk[j * BPR + i]; |
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| 129 | if (b >= 32 && b < 127) |
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| 130 | putchar(b); |
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| 131 | else |
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| 132 | putchar(' '); |
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| 133 | } else { |
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| 134 | putchar(' '); |
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| 135 | } |
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| 136 | } |
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| 137 | putchar('\n'); |
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| 138 | } |
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| 139 | |||
| 140 | block_put(block); |
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| 141 | |||
| 142 | if (size > rows * BPR) |
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| 143 | size -= rows * BPR; |
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| 144 | else |
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| 145 | size = 0; |
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| 146 | |||
| 147 | boff += rows * BPR; |
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| 148 | } |
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| 149 | |||
| 150 | block_fini(handle); |
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| 151 | |||
| 152 | return CMD_SUCCESS; |
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| 153 | } |