odsyntax.c revision 1590
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. 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 char sccsid[] = "@(#)odsyntax.c 8.1 (Berkeley) 6/6/93"; 36#endif /* not lint */ 37 38#include <sys/types.h> 39 40#include <stdlib.h> 41#include <stdio.h> 42#include <ctype.h> 43#include "hexdump.h" 44 45int deprecated; 46 47static void odoffset __P((int, char ***)); 48static void odprecede __P((void)); 49 50void 51oldsyntax(argc, argvp) 52 int argc; 53 char ***argvp; 54{ 55 extern enum _vflag vflag; 56 extern FS *fshead; 57 int ch; 58 char **argv; 59 60 deprecated = 1; 61 argv = *argvp; 62 while ((ch = getopt(argc, argv, "aBbcDdeFfHhIiLlOoPpswvXx")) != EOF) 63 switch (ch) { 64 case 'a': 65 odprecede(); 66 add("16/1 \"%3_u \" \"\\n\""); 67 break; 68 case 'B': 69 case 'o': 70 odprecede(); 71 add("8/2 \" %06o \" \"\\n\""); 72 break; 73 case 'b': 74 odprecede(); 75 add("16/1 \"%03o \" \"\\n\""); 76 break; 77 case 'c': 78 odprecede(); 79 add("16/1 \"%3_c \" \"\\n\""); 80 break; 81 case 'd': 82 odprecede(); 83 add("8/2 \" %05u \" \"\\n\""); 84 break; 85 case 'D': 86 odprecede(); 87 add("4/4 \" %010u \" \"\\n\""); 88 break; 89 case 'e': /* undocumented in od */ 90 case 'F': 91 odprecede(); 92 add("2/8 \" %21.14e \" \"\\n\""); 93 break; 94 95 case 'f': 96 odprecede(); 97 add("4/4 \" %14.7e \" \"\\n\""); 98 break; 99 case 'H': 100 case 'X': 101 odprecede(); 102 add("4/4 \" %08x \" \"\\n\""); 103 break; 104 case 'h': 105 case 'x': 106 odprecede(); 107 add("8/2 \" %04x \" \"\\n\""); 108 break; 109 case 'I': 110 case 'L': 111 case 'l': 112 odprecede(); 113 add("4/4 \" %11d \" \"\\n\""); 114 break; 115 case 'i': 116 odprecede(); 117 add("8/2 \" %6d \" \"\\n\""); 118 break; 119 case 'O': 120 odprecede(); 121 add("4/4 \" %011o \" \"\\n\""); 122 break; 123 case 'v': 124 vflag = ALL; 125 break; 126 case 'P': 127 case 'p': 128 case 's': 129 case 'w': 130 case '?': 131 default: 132 (void)fprintf(stderr, 133 "od: od(1) has been deprecated for hexdump(1).\n"); 134 if (ch != '?') 135 (void)fprintf(stderr, 136"od: hexdump(1) compatibility doesn't support the -%c option%s\n", 137 ch, ch == 's' ? "; see strings(1)." : "."); 138 usage(); 139 } 140 141 if (!fshead) { 142 add("\"%07.7_Ao\n\""); 143 add("\"%07.7_ao \" 8/2 \"%06o \" \"\\n\""); 144 } 145 146 argc -= optind; 147 *argvp += optind; 148 149 if (argc) 150 odoffset(argc, argvp); 151} 152 153static void 154odoffset(argc, argvp) 155 int argc; 156 char ***argvp; 157{ 158 extern off_t skip; 159 register char *num, *p; 160 int base; 161 char *end; 162 163 /* 164 * The offset syntax of od(1) was genuinely bizarre. First, if 165 * it started with a plus it had to be an offset. Otherwise, if 166 * there were at least two arguments, a number or lower-case 'x' 167 * followed by a number makes it an offset. By default it was 168 * octal; if it started with 'x' or '0x' it was hex. If it ended 169 * in a '.', it was decimal. If a 'b' or 'B' was appended, it 170 * multiplied the number by 512 or 1024 byte units. There was 171 * no way to assign a block count to a hex offset. 172 * 173 * We assume it's a file if the offset is bad. 174 */ 175 p = argc == 1 ? (*argvp)[0] : (*argvp)[1]; 176 177 if (*p != '+' && (argc < 2 || 178 (!isdigit(p[0]) && (p[0] != 'x' || !isxdigit(p[1]))))) 179 return; 180 181 base = 0; 182 /* 183 * skip over leading '+', 'x[0-9a-fA-f]' or '0x', and 184 * set base. 185 */ 186 if (p[0] == '+') 187 ++p; 188 if (p[0] == 'x' && isxdigit(p[1])) { 189 ++p; 190 base = 16; 191 } else if (p[0] == '0' && p[1] == 'x') { 192 p += 2; 193 base = 16; 194 } 195 196 /* skip over the number */ 197 if (base == 16) 198 for (num = p; isxdigit(*p); ++p); 199 else 200 for (num = p; isdigit(*p); ++p); 201 202 /* check for no number */ 203 if (num == p) 204 return; 205 206 /* if terminates with a '.', base is decimal */ 207 if (*p == '.') { 208 if (base) 209 return; 210 base = 10; 211 } 212 213 skip = strtol(num, &end, base ? base : 8); 214 215 /* if end isn't the same as p, we got a non-octal digit */ 216 if (end != p) { 217 skip = 0; 218 return; 219 } 220 221 if (*p) 222 if (*p == 'B') { 223 skip *= 1024; 224 ++p; 225 } else if (*p == 'b') { 226 skip *= 512; 227 ++p; 228 } 229 230 if (*p) { 231 skip = 0; 232 return; 233 } 234 235 /* 236 * If the offset uses a non-octal base, the base of the offset 237 * is changed as well. This isn't pretty, but it's easy. 238 */ 239#define TYPE_OFFSET 7 240 if (base == 16) { 241 fshead->nextfu->fmt[TYPE_OFFSET] = 'x'; 242 fshead->nextfs->nextfu->fmt[TYPE_OFFSET] = 'x'; 243 } else if (base == 10) { 244 fshead->nextfu->fmt[TYPE_OFFSET] = 'd'; 245 fshead->nextfs->nextfu->fmt[TYPE_OFFSET] = 'd'; 246 } 247 248 /* Terminate file list. */ 249 (*argvp)[1] = NULL; 250} 251 252static void 253odprecede() 254{ 255 static int first = 1; 256 257 if (first) { 258 first = 0; 259 add("\"%07.7_Ao\n\""); 260 add("\"%07.7_ao \""); 261 } else 262 add("\" \""); 263} 264