1 /*- 2 * Copyright (c) 1990, 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. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)hexsyntax.c 8.2 (Berkeley) 5/4/95 30 * $FreeBSD: src/usr.bin/hexdump/hexsyntax.c,v 1.8.2.1 2002/07/23 14:27:06 tjr Exp $ 31 * $DragonFly: src/usr.bin/hexdump/hexsyntax.c,v 1.4 2004/08/30 18:06:49 eirikn Exp $ 32 */ 33 34 #include <sys/types.h> 35 36 #include <err.h> 37 #include <stdio.h> 38 #include <stdlib.h> 39 #include <string.h> 40 #include <unistd.h> 41 42 #include "hexdump.h" 43 44 off_t skip; /* bytes to skip */ 45 46 void 47 newsyntax(int argc, char ***argvp) 48 { 49 int ch; 50 char *p, **argv; 51 52 argv = *argvp; 53 if ((p = strrchr(argv[0], 'h')) != NULL && 54 strcmp(p, "hd") == 0) { 55 /* "Canonical" format, implies -C. */ 56 add("\"%08.8_Ax\n\""); 57 add("\"%08.8_ax \" 8/1 \"%02x \" \" \" 8/1 \"%02x \" "); 58 add("\" |\" 16/1 \"%_p\" \"|\\n\""); 59 } 60 while ((ch = getopt(argc, argv, "bcCde:f:n:os:vx")) != -1) 61 switch (ch) { 62 case 'b': 63 add("\"%07.7_Ax\n\""); 64 add("\"%07.7_ax \" 16/1 \"%03o \" \"\\n\""); 65 break; 66 case 'c': 67 add("\"%07.7_Ax\n\""); 68 add("\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\""); 69 break; 70 case 'C': 71 add("\"%08.8_Ax\n\""); 72 add("\"%08.8_ax \" 8/1 \"%02x \" \" \" 8/1 \"%02x \" "); 73 add("\" |\" 16/1 \"%_p\" \"|\\n\""); 74 break; 75 case 'd': 76 add("\"%07.7_Ax\n\""); 77 add("\"%07.7_ax \" 8/2 \" %05u \" \"\\n\""); 78 break; 79 case 'e': 80 add(optarg); 81 break; 82 case 'f': 83 addfile(optarg); 84 break; 85 case 'n': 86 if ((length = atoi(optarg)) < 0) 87 errx(1, "%s: bad length value", optarg); 88 break; 89 case 'o': 90 add("\"%07.7_Ax\n\""); 91 add("\"%07.7_ax \" 8/2 \" %06o \" \"\\n\""); 92 break; 93 case 's': 94 if ((skip = strtoll(optarg, &p, 0)) < 0) 95 errx(1, "%s: bad skip value", optarg); 96 switch(*p) { 97 case 'b': 98 skip *= 512; 99 break; 100 case 'k': 101 skip *= 1024; 102 break; 103 case 'm': 104 skip *= 1048576; 105 break; 106 } 107 break; 108 case 'v': 109 vflag = ALL; 110 break; 111 case 'x': 112 add("\"%07.7_Ax\n\""); 113 add("\"%07.7_ax \" 8/2 \" %04x \" \"\\n\""); 114 break; 115 case '?': 116 usage(); 117 } 118 119 if (!fshead) { 120 add("\"%07.7_Ax\n\""); 121 add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\""); 122 } 123 124 *argvp += optind; 125 } 126 127 void 128 usage(void) 129 { 130 (void)fprintf(stderr, "%s\n%s\n%s\n%s\n", 131 "usage: hexdump [-bcCdovx] [-e fmt] [-f fmt_file] [-n length]", 132 " [-s skip] [file ...]", 133 " hd [-bcdovx] [-e fmt] [-f fmt_file] [-n length]", 134 " [-s skip] [file ...]"); 135 exit(1); 136 } 137