hexdump.c revision 200420
1/* 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#ifndef lint 35static const char copyright[] = 36"@(#) Copyright (c) 1989, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38#endif /* not lint */ 39 40#ifndef lint 41#if 0 42static char sccsid[] = "@(#)hexdump.c 8.1 (Berkeley) 6/6/93"; 43#endif 44#endif /* not lint */ 45#include <sys/cdefs.h> 46__FBSDID("$FreeBSD: head/usr.bin/hexdump/hexdump.c 200420 2009-12-11 23:35:38Z delphij $"); 47 48#include <sys/types.h> 49#include <locale.h> 50#include <stdlib.h> 51#include <string.h> 52#include "hexdump.h" 53 54FS *fshead; /* head of format strings */ 55int blocksize; /* data block size */ 56int exitval; /* final exit value */ 57int length = -1; /* max bytes to read */ 58 59int 60main(int argc, char *argv[]) 61{ 62 FS *tfs; 63 char *p; 64 65 (void)setlocale(LC_ALL, ""); 66 67 if (!(p = rindex(argv[0], 'o')) || strcmp(p, "od")) 68 newsyntax(argc, &argv); 69 else 70 oldsyntax(argc, &argv); 71 72 /* figure out the data block size */ 73 for (blocksize = 0, tfs = fshead; tfs; tfs = tfs->nextfs) { 74 tfs->bcnt = size(tfs); 75 if (blocksize < tfs->bcnt) 76 blocksize = tfs->bcnt; 77 } 78 /* rewrite the rules, do syntax checking */ 79 for (tfs = fshead; tfs; tfs = tfs->nextfs) 80 rewrite(tfs); 81 82 (void)next(argv); 83 display(); 84 exit(exitval); 85} 86