[821] | 1 | /*
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| 2 | * hexdump implementation for busybox
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| 3 | * Based on code from util-linux v 2.11l
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| 4 | *
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| 5 | * Copyright (c) 1989
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| 6 | * The Regents of the University of California. All rights reserved.
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| 7 | *
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| 8 | * Licensed under GPLv2 or later, see file License in this tarball for details.
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| 9 | */
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| 10 |
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| 11 | #include "busybox.h"
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| 12 | #include <getopt.h>
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| 13 | #include <string.h>
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| 14 | #include "dump.h"
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| 15 |
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| 16 | static void bb_dump_addfile(char *name)
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| 17 | {
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| 18 | register char *p;
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| 19 | FILE *fp;
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| 20 | char *buf;
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| 21 |
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| 22 | fp = bb_xfopen(name, "r");
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| 23 |
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| 24 | while ((buf = bb_get_chomped_line_from_file(fp)) != NULL) {
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| 25 | p = skip_whitespace(buf);
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| 26 |
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| 27 | if (*p && (*p != '#')) {
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| 28 | bb_dump_add(p);
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| 29 | }
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| 30 | free(buf);
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| 31 | }
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| 32 | fclose(fp);
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| 33 | }
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| 34 |
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| 35 | static const char * const add_strings[] = {
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| 36 | "\"%07.7_ax \" 16/1 \"%03o \" \"\\n\"", /* b */
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| 37 | "\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\"", /* c */
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| 38 | "\"%07.7_ax \" 8/2 \" %05u \" \"\\n\"", /* d */
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| 39 | "\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"", /* o */
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| 40 | "\"%07.7_ax \" 8/2 \" %04x \" \"\\n\"", /* x */
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| 41 | };
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| 42 |
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| 43 | static const char add_first[] = "\"%07.7_Ax\n\"";
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| 44 |
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| 45 | static const char hexdump_opts[] = "bcdoxCe:f:n:s:v";
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| 46 |
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| 47 | static const struct suffix_mult suffixes[] = {
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| 48 | {"b", 512 },
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| 49 | {"k", 1024 },
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| 50 | {"m", 1024*1024 },
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| 51 | {NULL, 0 }
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| 52 | };
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| 53 |
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| 54 | int hexdump_main(int argc, char **argv)
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| 55 | {
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| 56 | // register FS *tfs;
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| 57 | const char *p;
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| 58 | int ch;
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| 59 |
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| 60 | bb_dump_vflag = FIRST;
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| 61 | bb_dump_length = -1;
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| 62 |
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| 63 | while ((ch = getopt(argc, argv, hexdump_opts)) > 0) {
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| 64 | if ((p = strchr(hexdump_opts, ch)) != NULL) {
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| 65 | if ((p - hexdump_opts) < 5) {
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| 66 | bb_dump_add(add_first);
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| 67 | bb_dump_add(add_strings[(int)(p - hexdump_opts)]);
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| 68 | } else if (ch == 'C') {
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| 69 | bb_dump_add("\"%08.8_Ax\n\"");
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| 70 | bb_dump_add("\"%08.8_ax \" 8/1 \"%02x \" \" \" 8/1 \"%02x \" ");
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| 71 | bb_dump_add("\" |\" 16/1 \"%_p\" \"|\\n\"");
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| 72 | } else {
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| 73 | /* Sae a little bit of space below by omitting the 'else's. */
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| 74 | if (ch == 'e') {
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| 75 | bb_dump_add(optarg);
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| 76 | } /* else */
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| 77 | if (ch == 'f') {
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| 78 | bb_dump_addfile(optarg);
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| 79 | } /* else */
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| 80 | if (ch == 'n') {
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| 81 | bb_dump_length = bb_xgetularg10_bnd(optarg, 0, INT_MAX);
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| 82 | } /* else */
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| 83 | if (ch == 's') {
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| 84 | bb_dump_skip = bb_xgetularg_bnd_sfx(optarg, 10, 0, LONG_MAX, suffixes);
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| 85 | } /* else */
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| 86 | if (ch == 'v') {
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| 87 | bb_dump_vflag = ALL;
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| 88 | }
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| 89 | }
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| 90 | } else {
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| 91 | bb_show_usage();
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| 92 | }
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| 93 | }
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| 94 |
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| 95 | if (!bb_dump_fshead) {
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| 96 | bb_dump_add(add_first);
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| 97 | bb_dump_add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\"");
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| 98 | }
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| 99 |
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| 100 | argv += optind;
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| 101 |
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| 102 | return(bb_dump_dump(argv));
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| 103 | }
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