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fixes bug #113 and satisfies a personal need at the same time. output compares identically to util-linux version. (with exception of whitespace differences on last lines of output with non-uniform length, which are neither fixed nor worsened by this change.)
147 lines
4.6 KiB
C
147 lines
4.6 KiB
C
/*
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* hexdump implementation for busybox
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* Based on code from util-linux v 2.11l
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*
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* Copyright (c) 1989
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* The Regents of the University of California. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Original copyright notice is retained at the end of this file.
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*/
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#include <getopt.h>
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#include <stdlib.h>
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#include <string.h>
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#include "busybox.h"
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#include "dump.h"
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static void bb_dump_addfile(char *name)
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{
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register char *p;
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FILE *fp;
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char *buf;
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fp = bb_xfopen(name, "r");
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while ((buf = bb_get_chomped_line_from_file(fp)) != NULL) {
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p = (char *) bb_skip_whitespace(buf);
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if (*p && (*p != '#')) {
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bb_dump_add(p);
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}
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free(buf);
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}
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fclose(fp);
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}
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static const char * const add_strings[] = {
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"\"%07.7_ax \" 16/1 \"%03o \" \"\\n\"", /* b */
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"\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\"", /* c */
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"\"%07.7_ax \" 8/2 \" %05u \" \"\\n\"", /* d */
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"\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"", /* o */
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"\"%07.7_ax \" 8/2 \" %04x \" \"\\n\"", /* x */
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};
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static const char add_first[] = "\"%07.7_Ax\n\"";
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static const char hexdump_opts[] = "bcdoxCe:f:n:s:v";
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static const struct suffix_mult suffixes[] = {
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{"b", 512 },
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{"k", 1024 },
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{"m", 1024*1024 },
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{NULL, 0 }
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};
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int hexdump_main(int argc, char **argv)
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{
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// register FS *tfs;
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const char *p;
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int ch;
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bb_dump_vflag = FIRST;
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bb_dump_length = -1;
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while ((ch = getopt(argc, argv, hexdump_opts)) > 0) {
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if ((p = strchr(hexdump_opts, ch)) != NULL) {
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if ((p - hexdump_opts) < 5) {
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bb_dump_add(add_first);
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bb_dump_add(add_strings[(int)(p - hexdump_opts)]);
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} else if (ch == 'C') {
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bb_dump_add("\"%08.8_Ax\n\"");
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bb_dump_add("\"%08.8_ax \" 8/1 \"%02x \" \" \" 8/1 \"%02x \" ");
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bb_dump_add("\" |\" 16/1 \"%_p\" \"|\\n\"");
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} else {
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/* Sae a little bit of space below by omitting the 'else's. */
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if (ch == 'e') {
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bb_dump_add(optarg);
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} /* else */
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if (ch == 'f') {
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bb_dump_addfile(optarg);
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} /* else */
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if (ch == 'n') {
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bb_dump_length = bb_xgetularg10_bnd(optarg, 0, INT_MAX);
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} /* else */
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if (ch == 's') {
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bb_dump_skip = bb_xgetularg_bnd_sfx(optarg, 10, 0, LONG_MAX, suffixes);
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} /* else */
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if (ch == 'v') {
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bb_dump_vflag = ALL;
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}
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}
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} else {
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bb_show_usage();
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}
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}
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if (!bb_dump_fshead) {
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bb_dump_add(add_first);
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bb_dump_add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\"");
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}
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argv += optind;
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return(bb_dump_dump(argv));
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}
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/*
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* Copyright (c) 1989 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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