odsyntax.c revision 1.2
1 /*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * 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 5.4 (Berkeley) 3/8/91"; 36 #endif /* not lint */ 37 38 #include <sys/types.h> 39 #include <stdlib.h> 40 #include <stdio.h> 41 #include "hexdump.h" 42 43 int deprecated; 44 45 oldsyntax(argc, argvp) 46 int argc; 47 char ***argvp; 48 { 49 extern enum _vflag vflag; 50 extern FS *fshead; 51 extern char *optarg; 52 extern int length, optind; 53 int ch; 54 char **argv; 55 static void odprecede(); 56 57 deprecated = 1; 58 argv = *argvp; 59 while ((ch = getopt(argc, argv, "aBbcDdeFfHhIiLlOoPpswvXx")) != EOF) 60 switch (ch) { 61 case 'a': 62 odprecede(); 63 add("16/1 \"%3_u \" \"\\n\""); 64 break; 65 case 'B': 66 case 'o': 67 odprecede(); 68 add("8/2 \" %06o \" \"\\n\""); 69 break; 70 case 'b': 71 odprecede(); 72 add("16/1 \"%03o \" \"\\n\""); 73 break; 74 case 'c': 75 odprecede(); 76 add("16/1 \"%3_c \" \"\\n\""); 77 break; 78 case 'd': 79 odprecede(); 80 add("8/2 \" %05u \" \"\\n\""); 81 break; 82 case 'D': 83 odprecede(); 84 add("4/4 \" %010u \" \"\\n\""); 85 break; 86 case 'e': /* undocumented in od */ 87 case 'F': 88 odprecede(); 89 add("2/8 \" %21.14e \" \"\\n\""); 90 break; 91 92 case 'f': 93 odprecede(); 94 add("4/4 \" %14.7e \" \"\\n\""); 95 break; 96 case 'H': 97 case 'X': 98 odprecede(); 99 add("4/4 \" %08x \" \"\\n\""); 100 break; 101 case 'h': 102 case 'x': 103 odprecede(); 104 add("8/2 \" %04x \" \"\\n\""); 105 break; 106 case 'I': 107 case 'L': 108 case 'l': 109 odprecede(); 110 add("4/4 \" %11d \" \"\\n\""); 111 break; 112 case 'i': 113 odprecede(); 114 add("8/2 \" %6d \" \"\\n\""); 115 break; 116 case 'O': 117 odprecede(); 118 add("4/4 \" %011o \" \"\\n\""); 119 break; 120 case 'v': 121 vflag = ALL; 122 break; 123 case 'P': 124 case 'p': 125 case 's': 126 case 'w': 127 case '?': 128 default: 129 (void)fprintf(stderr, 130 "od: od(1) has been deprecated for hexdump(1).\n"); 131 if (ch != '?') 132 (void)fprintf(stderr, 133 "od: hexdump(1) compatibility doesn't support the -%c option%s\n", 134 ch, ch == 's' ? "; see strings(1)." : "."); 135 usage(); 136 } 137 138 if (!fshead) { 139 add("\"%07.7_Ao\n\""); 140 add("\"%07.7_ao \" 8/2 \"%06o \" \"\\n\""); 141 } 142 143 argc -= optind; 144 *argvp += optind; 145 146 odoffset(argc, argvp); 147 } 148 149 #define ishexdigit(c) \ 150 (c >= '0' && c <= '9' || c >= 'a' && c <= 'f' || c >= 'A' && c <= 'F') 151 152 odoffset(argc, argvp) 153 int argc; 154 char ***argvp; 155 { 156 extern off_t skip; 157 register char *num, *p; 158 int base; 159 char *end; 160 161 /* 162 * The offset syntax of od(1) was genuinely bizarre. First, if 163 * it started with a plus it had to be an offset. Otherwise, if 164 * there were at least two arguments, a number or lower-case 'x' 165 * followed by a number makes it an offset. By default it was 166 * octal; if it started with 'x' or '0x' it was hex. If it ended 167 * in a '.', it was decimal. If a 'b' or 'B' was appended, it 168 * multiplied the number by 512 or 1024 byte units. There was 169 * no way to assign a block count to a hex offset. 170 * 171 * We assumes it's a file if the offset is bad. 172 */ 173 174 p = argc == 1 ? (*argvp)[0] : (*argvp)[1]; 175 176 if (*p != '+' && (argc < 2 || 177 (!isdigit(p[0]) && (p[0] != 'x' || !ishexdigit(p[1]))))) 178 return; 179 180 base = 0; 181 /* 182 * skip over leading '+', 'x[0-9a-fA-f]' or '0x', and 183 * set base. 184 */ 185 if (p[0] == '+') 186 ++p; 187 if (p[0] == 'x' && ishexdigit(p[1])) { 188 ++p; 189 base = 16; 190 } else if (p[0] == '0' && p[1] == 'x') { 191 p += 2; 192 base = 16; 193 } 194 195 /* skip over the number */ 196 if (base == 16) 197 for (num = p; ishexdigit(*p); ++p); 198 else 199 for (num = p; isdigit(*p); ++p); 200 201 /* check for no number */ 202 if (num == p) 203 return; 204 205 /* if terminates with a '.', base is decimal */ 206 if (*p == '.') { 207 if (base) 208 return; 209 base = 10; 210 } 211 212 skip = strtol(num, &end, base ? base : 8); 213 214 /* if end isn't the same as p, we got a non-octal digit */ 215 if (end != p) 216 skip = 0; 217 else { 218 if (*p) { 219 if (*p == 'b') 220 skip *= 512; 221 else if (*p == 'B') 222 skip *= 1024; 223 ++p; 224 } 225 if (*p) 226 skip = 0; 227 else { 228 ++*argvp; 229 /* 230 * If the offset uses a non-octal base, the base of 231 * the offset is changed as well. This isn't pretty, 232 * but it's easy. 233 */ 234 #define TYPE_OFFSET 7 235 if (base == 16) { 236 fshead->nextfu->fmt[TYPE_OFFSET] = 'x'; 237 fshead->nextfs->nextfu->fmt[TYPE_OFFSET] = 'x'; 238 } else if (base == 10) { 239 fshead->nextfu->fmt[TYPE_OFFSET] = 'd'; 240 fshead->nextfs->nextfu->fmt[TYPE_OFFSET] = 'd'; 241 } 242 } 243 } 244 } 245 246 static void 247 odprecede() 248 { 249 static int first = 1; 250 251 if (first) { 252 first = 0; 253 add("\"%07.7_Ao\n\""); 254 add("\"%07.7_ao \""); 255 } else 256 add("\" \""); 257 } 258
Indexes created Wed Oct 15 03:09:54 GMT 2025