166 lines
4.6 KiB
C
166 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 "dump.h"
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#include "busybox.h"
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extern off_t skip; /* bytes to skip */
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extern FS *fshead; /* head of format strings */
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extern int blocksize; /* data block size */
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extern int length; /* max bytes to read */
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void addfile(char *name)
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{
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register char *p;
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FILE *fp;
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int ch;
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char buf[2048 + 1];
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if (!(fp = fopen(name, "r"))) {
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error_msg_and_die("hexdump: can't read %s.\n", name);
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}
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while (fgets(buf, sizeof(buf), fp)) {
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if (!(p = index(buf, '\n'))) {
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error_msg("hexdump: line too long.\n");
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while ((ch = getchar()) != '\n' && ch != EOF);
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continue;
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}
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*p = '\0';
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for (p = buf; *p && isspace(*p); ++p);
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if (!*p || *p == '#') {
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continue;
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}
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add(p);
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}
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(void)fclose(fp);
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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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char *p;
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int ch;
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extern enum _vflag vflag;
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vflag = FIRST;
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length = -1;
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while ((ch = getopt(argc, argv, "bcde:f:n:os:vx")) != EOF) {
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switch (ch) {
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case 'b':
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add("\"%07.7_Ax\n\"");
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add("\"%07.7_ax \" 16/1 \"%03o \" \"\\n\"");
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break;
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case 'c':
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add("\"%07.7_Ax\n\"");
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add("\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\"");
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break;
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case 'd':
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add("\"%07.7_Ax\n\"");
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add("\"%07.7_ax \" 8/2 \" %05u \" \"\\n\"");
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break;
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case 'e':
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add(optarg);
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break;
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case 'f':
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addfile(optarg);
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break;
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case 'n':
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if ((length = atoi(optarg)) < 0) {
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error_msg_and_die("hexdump: bad length value.\n");
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}
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break;
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case 'o':
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add("\"%07.7_Ax\n\"");
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add("\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"");
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break;
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case 's':
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if ((skip = strtol(optarg, &p, 0)) < 0) {
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error_msg_and_die("hexdump: bad skip value.\n");
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}
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switch(*p) {
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case 'b':
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skip *= 512;
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break;
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case 'k':
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skip *= 1024;
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break;
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case 'm':
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skip *= 1048576;
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break;
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}
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break;
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case 'v':
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vflag = ALL;
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break;
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case 'x':
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add("\"%07.7_Ax\n\"");
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add("\"%07.7_ax \" 8/2 \" %04x \" \"\\n\"");
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break;
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case '?':
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show_usage();
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}
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}
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if (!fshead) {
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add("\"%07.7_Ax\n\"");
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add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\"");
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}
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argv += optind;
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return(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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