odsyntax.c revision 1.1.1.2
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 35 static char sccsid[] = "@(#)odsyntax.c 8.2 (Berkeley) 5/4/95"; 36 #endif /* not lint */ 37 38 #include <sys/types.h> 39 40 #include <ctype.h> 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <unistd.h> 44 45 #include "hexdump.h" 46 47 int deprecated; 48 49 static void odoffset __P((int, char ***)); 50 static void odprecede __P((void)); 51 52 void 53 oldsyntax(argc, argvp) 54 int argc; 55 char ***argvp; 56 { 57 extern enum _vflag vflag; 58 extern FS *fshead; 59 int ch; 60 char **argv; 61 62 deprecated = 1; 63 argv = *argvp; 64 while ((ch = getopt(argc, argv, "aBbcDdeFfHhIiLlOoPpswvXx")) != EOF) 65 switch (ch) { 66 case 'a': 67 odprecede(); 68 add("16/1 \"%3_u \" \"\\n\""); 69 break; 70 case 'B': 71 case 'o': 72 odprecede(); 73 add("8/2 \" %06o \" \"\\n\""); 74 break; 75 case 'b': 76 odprecede(); 77 add("16/1 \"%03o \" \"\\n\""); 78 break; 79 case 'c': 80 odprecede(); 81 add("16/1 \"%3_c \" \"\\n\""); 82 break; 83 case 'd': 84 odprecede(); 85 add("8/2 \" %05u \" \"\\n\""); 86 break; 87 case 'D': 88 odprecede(); 89 add("4/4 \" %010u \" \"\\n\""); 90 break; 91 case 'e': /* undocumented in od */ 92 case 'F': 93 odprecede(); 94 add("2/8 \" %21.14e \" \"\\n\""); 95 break; 96 97 case 'f': 98 odprecede(); 99 add("4/4 \" %14.7e \" \"\\n\""); 100 break; 101 case 'H': 102 case 'X': 103 odprecede(); 104 add("4/4 \" %08x \" \"\\n\""); 105 break; 106 case 'h': 107 case 'x': 108 odprecede(); 109 add("8/2 \" %04x \" \"\\n\""); 110 break; 111 case 'I': 112 case 'L': 113 case 'l': 114 odprecede(); 115 add("4/4 \" %11d \" \"\\n\""); 116 break; 117 case 'i': 118 odprecede(); 119 add("8/2 \" %6d \" \"\\n\""); 120 break; 121 case 'O': 122 odprecede(); 123 add("4/4 \" %011o \" \"\\n\""); 124 break; 125 case 'v': 126 vflag = ALL; 127 break; 128 case 'P': 129 case 'p': 130 case 's': 131 case 'w': 132 case '?': 133 default: 134 (void)fprintf(stderr, 135 "od: od(1) has been deprecated for hexdump(1).\n"); 136 if (ch != '?') 137 (void)fprintf(stderr, 138 "od: hexdump(1) compatibility doesn't support the -%c option%s\n", 139 ch, ch == 's' ? "; see strings(1)." : "."); 140 usage(); 141 } 142 143 if (!fshead) { 144 add("\"%07.7_Ao\n\""); 145 add("\"%07.7_ao \" 8/2 \"%06o \" \"\\n\""); 146 } 147 148 argc -= optind; 149 *argvp += optind; 150 151 if (argc) 152 odoffset(argc, argvp); 153 } 154 155 static void 156 odoffset(argc, argvp) 157 int argc; 158 char ***argvp; 159 { 160 extern off_t skip; 161 register char *num, *p; 162 int base; 163 char *end; 164 165 /* 166 * The offset syntax of od(1) was genuinely bizarre. First, if 167 * it started with a plus it had to be an offset. Otherwise, if 168 * there were at least two arguments, a number or lower-case 'x' 169 * followed by a number makes it an offset. By default it was 170 * octal; if it started with 'x' or '0x' it was hex. If it ended 171 * in a '.', it was decimal. If a 'b' or 'B' was appended, it 172 * multiplied the number by 512 or 1024 byte units. There was 173 * no way to assign a block count to a hex offset. 174 * 175 * We assume it's a file if the offset is bad. 176 */ 177 p = argc == 1 ? (*argvp)[0] : (*argvp)[1]; 178 179 if (*p != '+' && (argc < 2 || 180 (!isdigit(p[0]) && (p[0] != 'x' || !isxdigit(p[1]))))) 181 return; 182 183 base = 0; 184 /* 185 * skip over leading '+', 'x[0-9a-fA-f]' or '0x', and 186 * set base. 187 */ 188 if (p[0] == '+') 189 ++p; 190 if (p[0] == 'x' && isxdigit(p[1])) { 191 ++p; 192 base = 16; 193 } else if (p[0] == '0' && p[1] == 'x') { 194 p += 2; 195 base = 16; 196 } 197 198 /* skip over the number */ 199 if (base == 16) 200 for (num = p; isxdigit(*p); ++p); 201 else 202 for (num = p; isdigit(*p); ++p); 203 204 /* check for no number */ 205 if (num == p) 206 return; 207 208 /* if terminates with a '.', base is decimal */ 209 if (*p == '.') { 210 if (base) 211 return; 212 base = 10; 213 } 214 215 skip = strtol(num, &end, base ? base : 8); 216 217 /* if end isn't the same as p, we got a non-octal digit */ 218 if (end != p) { 219 skip = 0; 220 return; 221 } 222 223 if (*p) 224 if (*p == 'B') { 225 skip *= 1024; 226 ++p; 227 } else if (*p == 'b') { 228 skip *= 512; 229 ++p; 230 } 231 232 if (*p) { 233 skip = 0; 234 return; 235 } 236 237 /* 238 * If the offset uses a non-octal base, the base of the offset 239 * is changed as well. This isn't pretty, but it's easy. 240 */ 241 #define TYPE_OFFSET 7 242 if (base == 16) { 243 fshead->nextfu->fmt[TYPE_OFFSET] = 'x'; 244 fshead->nextfs->nextfu->fmt[TYPE_OFFSET] = 'x'; 245 } else if (base == 10) { 246 fshead->nextfu->fmt[TYPE_OFFSET] = 'd'; 247 fshead->nextfs->nextfu->fmt[TYPE_OFFSET] = 'd'; 248 } 249 250 /* Terminate file list. */ 251 (*argvp)[1] = NULL; 252 } 253 254 static void 255 odprecede() 256 { 257 static int first = 1; 258 259 if (first) { 260 first = 0; 261 add("\"%07.7_Ao\n\""); 262 add("\"%07.7_ao \""); 263 } else 264 add("\" \""); 265 } 266
Indexes created Mon Oct 13 16:09:52 GMT 2025