Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Support code for the hexdump and od applets, |
| 3 | * based on code from util-linux v 2.11l |
| 4 | * |
| 5 | * Copyright (c) 1989 |
| 6 | * The Regents of the University of California. All rights reserved. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | * |
| 22 | * Original copyright notice is retained at the end of this file. |
| 23 | */ |
| 24 | |
| 25 | #include <stdlib.h> |
| 26 | #include <string.h> |
| 27 | #include <ctype.h> /* for isdigit() */ |
| 28 | #include "dump.h" |
| 29 | #include "libbb.h" |
| 30 | |
| 31 | enum _vflag vflag = FIRST; |
| 32 | FS *fshead; /* head of format strings */ |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 33 | extern FS *fshead; /* head of format strings */ |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 34 | extern int blocksize; |
| 35 | static FU *endfu; |
| 36 | static char **_argv; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 37 | static off_t savaddress; /* saved address/offset in stream */ |
| 38 | static off_t eaddress; /* end address */ |
| 39 | static off_t address; /* address/offset in stream */ |
| 40 | off_t skip; /* bytes to skip */ |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 41 | off_t saveaddress; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 42 | int exitval; /* final exit value */ |
| 43 | int blocksize; /* data block size */ |
| 44 | int length = -1; /* max bytes to read */ |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 45 | |
| 46 | |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 47 | int size(FS * fs) |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 48 | { |
| 49 | register FU *fu; |
| 50 | register int bcnt, cursize; |
| 51 | register char *fmt; |
| 52 | int prec; |
| 53 | |
| 54 | /* figure out the data block size needed for each format unit */ |
| 55 | for (cursize = 0, fu = fs->nextfu; fu; fu = fu->nextfu) { |
| 56 | if (fu->bcnt) { |
| 57 | cursize += fu->bcnt * fu->reps; |
| 58 | continue; |
| 59 | } |
| 60 | for (bcnt = prec = 0, fmt = fu->fmt; *fmt; ++fmt) { |
| 61 | if (*fmt != '%') |
| 62 | continue; |
| 63 | /* |
| 64 | * skip any special chars -- save precision in |
| 65 | * case it's a %s format. |
| 66 | */ |
| 67 | while (index(".#-+ 0123456789" + 1, *++fmt)); |
| 68 | if (*fmt == '.' && isdigit(*++fmt)) { |
| 69 | prec = atoi(fmt); |
| 70 | while (isdigit(*++fmt)); |
| 71 | } |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 72 | switch (*fmt) { |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 73 | case 'c': |
| 74 | bcnt += 1; |
| 75 | break; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 76 | case 'd': |
| 77 | case 'i': |
| 78 | case 'o': |
| 79 | case 'u': |
| 80 | case 'x': |
| 81 | case 'X': |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 82 | bcnt += 4; |
| 83 | break; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 84 | case 'e': |
| 85 | case 'E': |
| 86 | case 'f': |
| 87 | case 'g': |
| 88 | case 'G': |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 89 | bcnt += 8; |
| 90 | break; |
| 91 | case 's': |
| 92 | bcnt += prec; |
| 93 | break; |
| 94 | case '_': |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 95 | switch (*++fmt) { |
| 96 | case 'c': |
| 97 | case 'p': |
| 98 | case 'u': |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 99 | bcnt += 1; |
| 100 | break; |
| 101 | } |
| 102 | } |
| 103 | } |
| 104 | cursize += bcnt * fu->reps; |
| 105 | } |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 106 | return (cursize); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 107 | } |
| 108 | |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 109 | void rewrite(FS * fs) |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 110 | { |
| 111 | enum { NOTOKAY, USEBCNT, USEPREC } sokay; |
| 112 | register PR *pr, **nextpr = NULL; |
| 113 | register FU *fu; |
| 114 | register char *p1, *p2; |
| 115 | char savech, *fmtp; |
| 116 | int nconv, prec = 0; |
| 117 | |
| 118 | for (fu = fs->nextfu; fu; fu = fu->nextfu) { |
| 119 | /* |
| 120 | * break each format unit into print units; each |
| 121 | * conversion character gets its own. |
| 122 | */ |
| 123 | for (nconv = 0, fmtp = fu->fmt; *fmtp; nextpr = &pr->nextpr) { |
| 124 | /* NOSTRICT */ |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 125 | pr = (PR *) xmalloc(sizeof(PR)); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 126 | if (!fu->nextpr) |
| 127 | fu->nextpr = pr; |
| 128 | else |
| 129 | *nextpr = pr; |
| 130 | |
| 131 | /* skip preceding text and up to the next % sign */ |
| 132 | for (p1 = fmtp; *p1 && *p1 != '%'; ++p1); |
| 133 | |
| 134 | /* only text in the string */ |
| 135 | if (!*p1) { |
| 136 | pr->fmt = fmtp; |
| 137 | pr->flags = F_TEXT; |
| 138 | break; |
| 139 | } |
| 140 | |
| 141 | /* |
| 142 | * get precision for %s -- if have a byte count, don't |
| 143 | * need it. |
| 144 | */ |
| 145 | if (fu->bcnt) { |
| 146 | sokay = USEBCNT; |
| 147 | /* skip to conversion character */ |
| 148 | for (++p1; index(".#-+ 0123456789", *p1); ++p1); |
| 149 | } else { |
| 150 | /* skip any special chars, field width */ |
| 151 | while (index(".#-+ 0123456789" + 1, *++p1)); |
| 152 | if (*p1 == '.' && isdigit(*++p1)) { |
| 153 | sokay = USEPREC; |
| 154 | prec = atoi(p1); |
| 155 | while (isdigit(*++p1)); |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 156 | } else |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 157 | sokay = NOTOKAY; |
| 158 | } |
| 159 | |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 160 | p2 = p1 + 1; /* set end pointer */ |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 161 | |
| 162 | /* |
| 163 | * figure out the byte count for each conversion; |
| 164 | * rewrite the format as necessary, set up blank- |
| 165 | * padding for end of data. |
| 166 | */ |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 167 | switch (*p1) { |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 168 | case 'c': |
| 169 | pr->flags = F_CHAR; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 170 | switch (fu->bcnt) { |
| 171 | case 0: |
| 172 | case 1: |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 173 | pr->bcnt = 1; |
| 174 | break; |
| 175 | default: |
| 176 | p1[1] = '\0'; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 177 | error_msg_and_die |
| 178 | ("bad byte count for conversion character %s.", p1); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 179 | } |
| 180 | break; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 181 | case 'd': |
| 182 | case 'i': |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 183 | pr->flags = F_INT; |
| 184 | goto sw1; |
| 185 | case 'l': |
| 186 | ++p2; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 187 | switch (p1[1]) { |
| 188 | case 'd': |
| 189 | case 'i': |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 190 | ++p1; |
| 191 | pr->flags = F_INT; |
| 192 | goto sw1; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 193 | case 'o': |
| 194 | case 'u': |
| 195 | case 'x': |
| 196 | case 'X': |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 197 | ++p1; |
| 198 | pr->flags = F_UINT; |
| 199 | goto sw1; |
| 200 | default: |
| 201 | p1[2] = '\0'; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 202 | error_msg_and_die |
| 203 | ("hexdump: bad conversion character %%%s.\n", p1); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 204 | } |
| 205 | /* NOTREACHED */ |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 206 | case 'o': |
| 207 | case 'u': |
| 208 | case 'x': |
| 209 | case 'X': |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 210 | pr->flags = F_UINT; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 211 | sw1:switch (fu->bcnt) { |
| 212 | case 0: |
| 213 | case 4: |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 214 | pr->bcnt = 4; |
| 215 | break; |
| 216 | case 1: |
| 217 | pr->bcnt = 1; |
| 218 | break; |
| 219 | case 2: |
| 220 | pr->bcnt = 2; |
| 221 | break; |
| 222 | default: |
| 223 | p1[1] = '\0'; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 224 | error_msg_and_die |
| 225 | ("bad byte count for conversion character %s.", p1); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 226 | } |
| 227 | break; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 228 | case 'e': |
| 229 | case 'E': |
| 230 | case 'f': |
| 231 | case 'g': |
| 232 | case 'G': |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 233 | pr->flags = F_DBL; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 234 | switch (fu->bcnt) { |
| 235 | case 0: |
| 236 | case 8: |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 237 | pr->bcnt = 8; |
| 238 | break; |
| 239 | case 4: |
| 240 | pr->bcnt = 4; |
| 241 | break; |
| 242 | default: |
| 243 | p1[1] = '\0'; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 244 | error_msg_and_die |
| 245 | ("bad byte count for conversion character %s.", p1); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 246 | } |
| 247 | break; |
| 248 | case 's': |
| 249 | pr->flags = F_STR; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 250 | switch (sokay) { |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 251 | case NOTOKAY: |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 252 | error_msg_and_die |
| 253 | ("%%s requires a precision or a byte count."); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 254 | case USEBCNT: |
| 255 | pr->bcnt = fu->bcnt; |
| 256 | break; |
| 257 | case USEPREC: |
| 258 | pr->bcnt = prec; |
| 259 | break; |
| 260 | } |
| 261 | break; |
| 262 | case '_': |
| 263 | ++p2; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 264 | switch (p1[1]) { |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 265 | case 'A': |
| 266 | endfu = fu; |
| 267 | fu->flags |= F_IGNORE; |
| 268 | /* FALLTHROUGH */ |
| 269 | case 'a': |
| 270 | pr->flags = F_ADDRESS; |
| 271 | ++p2; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 272 | switch (p1[2]) { |
| 273 | case 'd': |
| 274 | case 'o': |
| 275 | case 'x': |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 276 | *p1 = p1[2]; |
| 277 | break; |
| 278 | default: |
| 279 | p1[3] = '\0'; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 280 | error_msg_and_die |
| 281 | ("hexdump: bad conversion character %%%s.\n", p1); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 282 | } |
| 283 | break; |
| 284 | case 'c': |
| 285 | pr->flags = F_C; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 286 | /* *p1 = 'c'; set in conv_c */ |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 287 | goto sw2; |
| 288 | case 'p': |
| 289 | pr->flags = F_P; |
| 290 | *p1 = 'c'; |
| 291 | goto sw2; |
| 292 | case 'u': |
| 293 | pr->flags = F_U; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 294 | /* *p1 = 'c'; set in conv_u */ |
| 295 | sw2:switch (fu->bcnt) { |
| 296 | case 0: |
| 297 | case 1: |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 298 | pr->bcnt = 1; |
| 299 | break; |
| 300 | default: |
| 301 | p1[2] = '\0'; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 302 | error_msg_and_die |
| 303 | ("bad byte count for conversion character %s.", |
| 304 | p1); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 305 | } |
| 306 | break; |
| 307 | default: |
| 308 | p1[2] = '\0'; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 309 | error_msg_and_die |
| 310 | ("hexdump: bad conversion character %%%s.\n", p1); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 311 | } |
| 312 | break; |
| 313 | default: |
| 314 | p1[1] = '\0'; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 315 | error_msg_and_die("hexdump: bad conversion character %%%s.\n", |
| 316 | p1); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 317 | } |
| 318 | |
| 319 | /* |
| 320 | * copy to PR format string, set conversion character |
| 321 | * pointer, update original. |
| 322 | */ |
| 323 | savech = *p2; |
| 324 | p1[1] = '\0'; |
| 325 | if (!(pr->fmt = strdup(fmtp))) |
| 326 | perror_msg_and_die("hexdump"); |
| 327 | *p2 = savech; |
| 328 | pr->cchar = pr->fmt + (p1 - fmtp); |
| 329 | fmtp = p2; |
| 330 | |
| 331 | /* only one conversion character if byte count */ |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 332 | if (!(pr->flags & F_ADDRESS) && fu->bcnt && nconv++) { |
| 333 | error_msg_and_die |
| 334 | ("hexdump: byte count with multiple conversion characters.\n"); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 335 | } |
| 336 | } |
| 337 | /* |
| 338 | * if format unit byte count not specified, figure it out |
| 339 | * so can adjust rep count later. |
| 340 | */ |
| 341 | if (!fu->bcnt) |
| 342 | for (pr = fu->nextpr; pr; pr = pr->nextpr) |
| 343 | fu->bcnt += pr->bcnt; |
| 344 | } |
| 345 | /* |
| 346 | * if the format string interprets any data at all, and it's |
| 347 | * not the same as the blocksize, and its last format unit |
| 348 | * interprets any data at all, and has no iteration count, |
| 349 | * repeat it as necessary. |
| 350 | * |
| 351 | * if, rep count is greater than 1, no trailing whitespace |
| 352 | * gets output from the last iteration of the format unit. |
| 353 | */ |
| 354 | for (fu = fs->nextfu;; fu = fu->nextfu) { |
| 355 | if (!fu->nextfu && fs->bcnt < blocksize && |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 356 | !(fu->flags & F_SETREP) && fu->bcnt) |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 357 | fu->reps += (blocksize - fs->bcnt) / fu->bcnt; |
| 358 | if (fu->reps > 1) { |
| 359 | for (pr = fu->nextpr;; pr = pr->nextpr) |
| 360 | if (!pr->nextpr) |
| 361 | break; |
| 362 | for (p1 = pr->fmt, p2 = NULL; *p1; ++p1) |
| 363 | p2 = isspace(*p1) ? p1 : NULL; |
| 364 | if (p2) |
| 365 | pr->nospace = p2; |
| 366 | } |
| 367 | if (!fu->nextfu) |
| 368 | break; |
| 369 | } |
| 370 | } |
| 371 | |
| 372 | static void doskip(char *fname, int statok) |
| 373 | { |
| 374 | struct stat sbuf; |
| 375 | |
| 376 | if (statok) { |
| 377 | if (fstat(fileno(stdin), &sbuf)) { |
| 378 | perror_msg_and_die("hexdump: %s", fname); |
| 379 | } |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 380 | if ((!(S_ISCHR(sbuf.st_mode) || |
| 381 | S_ISBLK(sbuf.st_mode) || |
| 382 | S_ISFIFO(sbuf.st_mode))) && skip >= sbuf.st_size) { |
| 383 | /* If size valid and skip >= size */ |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 384 | skip -= sbuf.st_size; |
| 385 | address += sbuf.st_size; |
| 386 | return; |
| 387 | } |
| 388 | } |
| 389 | if (fseek(stdin, skip, SEEK_SET)) { |
| 390 | perror_msg_and_die("hexdump: %s", fname); |
| 391 | } |
| 392 | savaddress = address += skip; |
| 393 | skip = 0; |
| 394 | } |
| 395 | |
| 396 | int next(char **argv) |
| 397 | { |
| 398 | static int done; |
| 399 | int statok; |
| 400 | |
| 401 | if (argv) { |
| 402 | _argv = argv; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 403 | return (1); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 404 | } |
| 405 | for (;;) { |
| 406 | if (*_argv) { |
| 407 | if (!(freopen(*_argv, "r", stdin))) { |
| 408 | perror_msg("%s", *_argv); |
| 409 | exitval = 1; |
| 410 | ++_argv; |
| 411 | continue; |
| 412 | } |
| 413 | statok = done = 1; |
| 414 | } else { |
| 415 | if (done++) |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 416 | return (0); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 417 | statok = 0; |
| 418 | } |
| 419 | if (skip) |
| 420 | doskip(statok ? *_argv : "stdin", statok); |
| 421 | if (*_argv) |
| 422 | ++_argv; |
| 423 | if (!skip) |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 424 | return (1); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 425 | } |
| 426 | /* NOTREACHED */ |
| 427 | } |
| 428 | |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 429 | static u_char *get(void) |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 430 | { |
| 431 | static int ateof = 1; |
| 432 | static u_char *curp, *savp; |
| 433 | register int n; |
| 434 | int need, nread; |
| 435 | u_char *tmpp; |
| 436 | |
| 437 | if (!curp) { |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 438 | curp = (u_char *) xmalloc(blocksize); |
| 439 | savp = (u_char *) xmalloc(blocksize); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 440 | } else { |
| 441 | tmpp = curp; |
| 442 | curp = savp; |
| 443 | savp = tmpp; |
| 444 | address = savaddress += blocksize; |
| 445 | } |
| 446 | for (need = blocksize, nread = 0;;) { |
| 447 | /* |
| 448 | * if read the right number of bytes, or at EOF for one file, |
| 449 | * and no other files are available, zero-pad the rest of the |
| 450 | * block and set the end flag. |
| 451 | */ |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 452 | if (!length || (ateof && !next((char **) NULL))) { |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 453 | if (need == blocksize) { |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 454 | return ((u_char *) NULL); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 455 | } |
| 456 | if (vflag != ALL && !bcmp(curp, savp, nread)) { |
| 457 | if (vflag != DUP) { |
| 458 | printf("*\n"); |
| 459 | } |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 460 | return ((u_char *) NULL); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 461 | } |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 462 | bzero((char *) curp + nread, need); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 463 | eaddress = address + nread; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 464 | return (curp); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 465 | } |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 466 | n = fread((char *) curp + nread, sizeof(u_char), |
| 467 | length == -1 ? need : MIN(length, need), stdin); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 468 | if (!n) { |
| 469 | if (ferror(stdin)) { |
| 470 | perror_msg("%s", _argv[-1]); |
| 471 | } |
| 472 | ateof = 1; |
| 473 | continue; |
| 474 | } |
| 475 | ateof = 0; |
| 476 | if (length != -1) { |
| 477 | length -= n; |
| 478 | } |
| 479 | if (!(need -= n)) { |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 480 | if (vflag == ALL || vflag == FIRST || bcmp(curp, savp, blocksize)) { |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 481 | if (vflag == DUP || vflag == FIRST) { |
| 482 | vflag = WAIT; |
| 483 | } |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 484 | return (curp); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 485 | } |
| 486 | if (vflag == WAIT) { |
| 487 | printf("*\n"); |
| 488 | } |
| 489 | vflag = DUP; |
| 490 | address = savaddress += blocksize; |
| 491 | need = blocksize; |
| 492 | nread = 0; |
| 493 | } else { |
| 494 | nread += n; |
| 495 | } |
| 496 | } |
| 497 | } |
| 498 | |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 499 | static void bpad(PR * pr) |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 500 | { |
| 501 | register char *p1, *p2; |
| 502 | |
| 503 | /* |
| 504 | * remove all conversion flags; '-' is the only one valid |
| 505 | * with %s, and it's not useful here. |
| 506 | */ |
| 507 | pr->flags = F_BPAD; |
| 508 | *pr->cchar = 's'; |
| 509 | for (p1 = pr->fmt; *p1 != '%'; ++p1); |
| 510 | for (p2 = ++p1; *p1 && index(" -0+#", *p1); ++p1); |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 511 | while ((*p2++ = *p1++) != 0); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 512 | } |
| 513 | |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 514 | void conv_c(PR * pr, u_char * p) |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 515 | { |
| 516 | char buf[10], *str; |
| 517 | |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 518 | switch (*p) { |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 519 | case '\0': |
| 520 | str = "\\0"; |
| 521 | goto strpr; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 522 | /* case '\a': */ |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 523 | case '\007': |
| 524 | str = "\\a"; |
| 525 | goto strpr; |
| 526 | case '\b': |
| 527 | str = "\\b"; |
| 528 | goto strpr; |
| 529 | case '\f': |
| 530 | str = "\\f"; |
| 531 | goto strpr; |
| 532 | case '\n': |
| 533 | str = "\\n"; |
| 534 | goto strpr; |
| 535 | case '\r': |
| 536 | str = "\\r"; |
| 537 | goto strpr; |
| 538 | case '\t': |
| 539 | str = "\\t"; |
| 540 | goto strpr; |
| 541 | case '\v': |
| 542 | str = "\\v"; |
| 543 | goto strpr; |
| 544 | default: |
| 545 | break; |
| 546 | } |
| 547 | if (isprint(*p)) { |
| 548 | *pr->cchar = 'c'; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 549 | (void) printf(pr->fmt, *p); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 550 | } else { |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 551 | sprintf(str = buf, "%03o", (int) *p); |
| 552 | strpr: |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 553 | *pr->cchar = 's'; |
| 554 | printf(pr->fmt, str); |
| 555 | } |
| 556 | } |
| 557 | |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 558 | void conv_u(PR * pr, u_char * p) |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 559 | { |
| 560 | static char *list[] = { |
| 561 | "nul", "soh", "stx", "etx", "eot", "enq", "ack", "bel", |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 562 | "bs", "ht", "lf", "vt", "ff", "cr", "so", "si", |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 563 | "dle", "dcl", "dc2", "dc3", "dc4", "nak", "syn", "etb", |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 564 | "can", "em", "sub", "esc", "fs", "gs", "rs", "us", |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 565 | }; |
| 566 | |
| 567 | /* od used nl, not lf */ |
| 568 | if (*p <= 0x1f) { |
| 569 | *pr->cchar = 's'; |
| 570 | printf(pr->fmt, list[*p]); |
| 571 | } else if (*p == 0x7f) { |
| 572 | *pr->cchar = 's'; |
| 573 | printf(pr->fmt, "del"); |
| 574 | } else if (isprint(*p)) { |
| 575 | *pr->cchar = 'c'; |
| 576 | printf(pr->fmt, *p); |
| 577 | } else { |
| 578 | *pr->cchar = 'x'; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 579 | printf(pr->fmt, (int) *p); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 580 | } |
| 581 | } |
| 582 | |
| 583 | void display(void) |
| 584 | { |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 585 | /* extern FU *endfu; */ |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 586 | register FS *fs; |
| 587 | register FU *fu; |
| 588 | register PR *pr; |
| 589 | register int cnt; |
| 590 | register u_char *bp; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 591 | |
| 592 | /* off_t saveaddress; */ |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 593 | u_char savech = 0, *savebp; |
| 594 | |
| 595 | while ((bp = get()) != NULL) { |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 596 | for (fs = fshead, savebp = bp, saveaddress = address; fs; |
| 597 | fs = fs->nextfs, bp = savebp, address = saveaddress) { |
| 598 | for (fu = fs->nextfu; fu; fu = fu->nextfu) { |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 599 | if (fu->flags & F_IGNORE) { |
| 600 | break; |
| 601 | } |
| 602 | for (cnt = fu->reps; cnt; --cnt) { |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 603 | for (pr = fu->nextpr; pr; address += pr->bcnt, |
| 604 | bp += pr->bcnt, pr = pr->nextpr) { |
| 605 | if (eaddress && address >= eaddress && |
| 606 | !(pr->flags & (F_TEXT | F_BPAD))) { |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 607 | bpad(pr); |
| 608 | } |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 609 | if (cnt == 1 && pr->nospace) { |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 610 | savech = *pr->nospace; |
| 611 | *pr->nospace = '\0'; |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 612 | } |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 613 | /* PRINT; */ |
| 614 | switch (pr->flags) { |
| 615 | case F_ADDRESS: |
| 616 | printf(pr->fmt, address); |
| 617 | break; |
| 618 | case F_BPAD: |
| 619 | printf(pr->fmt, ""); |
| 620 | break; |
| 621 | case F_C: |
| 622 | conv_c(pr, bp); |
| 623 | break; |
| 624 | case F_CHAR: |
| 625 | printf(pr->fmt, *bp); |
| 626 | break; |
| 627 | case F_DBL:{ |
| 628 | double dval; |
| 629 | float fval; |
| 630 | |
| 631 | switch (pr->bcnt) { |
| 632 | case 4: |
| 633 | bcopy((char *) bp, (char *) &fval, |
| 634 | sizeof(fval)); |
| 635 | printf(pr->fmt, fval); |
| 636 | break; |
| 637 | case 8: |
| 638 | bcopy((char *) bp, (char *) &dval, |
| 639 | sizeof(dval)); |
| 640 | printf(pr->fmt, dval); |
| 641 | break; |
| 642 | } |
| 643 | break; |
| 644 | } |
| 645 | case F_INT:{ |
| 646 | int ival; |
| 647 | short sval; |
| 648 | |
| 649 | switch (pr->bcnt) { |
| 650 | case 1: |
| 651 | printf(pr->fmt, (int) *bp); |
| 652 | break; |
| 653 | case 2: |
| 654 | bcopy((char *) bp, (char *) &sval, |
| 655 | sizeof(sval)); |
| 656 | printf(pr->fmt, (int) sval); |
| 657 | break; |
| 658 | case 4: |
| 659 | bcopy((char *) bp, (char *) &ival, |
| 660 | sizeof(ival)); |
| 661 | printf(pr->fmt, ival); |
| 662 | break; |
| 663 | } |
| 664 | break; |
| 665 | } |
| 666 | case F_P: |
| 667 | printf(pr->fmt, isprint(*bp) ? *bp : '.'); |
| 668 | break; |
| 669 | case F_STR: |
| 670 | printf(pr->fmt, (char *) bp); |
| 671 | break; |
| 672 | case F_TEXT: |
| 673 | printf(pr->fmt); |
| 674 | break; |
| 675 | case F_U: |
| 676 | conv_u(pr, bp); |
| 677 | break; |
| 678 | case F_UINT:{ |
| 679 | u_int ival; |
| 680 | u_short sval; |
| 681 | |
| 682 | switch (pr->bcnt) { |
| 683 | case 1: |
| 684 | printf(pr->fmt, (u_int) * bp); |
| 685 | break; |
| 686 | case 2: |
| 687 | bcopy((char *) bp, (char *) &sval, |
| 688 | sizeof(sval)); |
| 689 | printf(pr->fmt, (u_int) sval); |
| 690 | break; |
| 691 | case 4: |
| 692 | bcopy((char *) bp, (char *) &ival, |
| 693 | sizeof(ival)); |
| 694 | printf(pr->fmt, ival); |
| 695 | break; |
| 696 | } |
| 697 | break; |
| 698 | } |
| 699 | } |
| 700 | if (cnt == 1 && pr->nospace) { |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 701 | *pr->nospace = savech; |
| 702 | } |
| 703 | } |
| 704 | } |
| 705 | } |
| 706 | } |
| 707 | } |
| 708 | if (endfu) { |
| 709 | /* |
| 710 | * if eaddress not set, error or file size was multiple of |
| 711 | * blocksize, and no partial block ever found. |
| 712 | */ |
| 713 | if (!eaddress) { |
| 714 | if (!address) { |
| 715 | return; |
| 716 | } |
| 717 | eaddress = address; |
| 718 | } |
| 719 | for (pr = endfu->nextpr; pr; pr = pr->nextpr) { |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 720 | switch (pr->flags) { |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 721 | case F_ADDRESS: |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 722 | (void) printf(pr->fmt, eaddress); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 723 | break; |
| 724 | case F_TEXT: |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 725 | (void) printf(pr->fmt); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 726 | break; |
| 727 | } |
| 728 | } |
| 729 | } |
| 730 | } |
| 731 | |
| 732 | int dump(char **argv) |
| 733 | { |
| 734 | register FS *tfs; |
| 735 | |
| 736 | /* figure out the data block size */ |
| 737 | for (blocksize = 0, tfs = fshead; tfs; tfs = tfs->nextfs) { |
| 738 | tfs->bcnt = size(tfs); |
| 739 | if (blocksize < tfs->bcnt) { |
| 740 | blocksize = tfs->bcnt; |
| 741 | } |
| 742 | } |
| 743 | /* rewrite the rules, do syntax checking */ |
| 744 | for (tfs = fshead; tfs; tfs = tfs->nextfs) { |
| 745 | rewrite(tfs); |
| 746 | } |
| 747 | |
| 748 | next(argv); |
| 749 | display(); |
| 750 | |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 751 | return (exitval); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 752 | } |
| 753 | |
| 754 | void add(char *fmt) |
| 755 | { |
| 756 | register char *p; |
| 757 | register char *p1; |
| 758 | register char *p2; |
| 759 | static FS **nextfs; |
| 760 | FS *tfs; |
| 761 | FU *tfu, **nextfu; |
| 762 | char *savep; |
| 763 | |
| 764 | /* start new linked list of format units */ |
| 765 | /* NOSTRICT */ |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 766 | tfs = (FS *) xmalloc(sizeof(FS)); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 767 | if (!fshead) { |
| 768 | fshead = tfs; |
| 769 | } else { |
| 770 | *nextfs = tfs; |
| 771 | } |
| 772 | nextfs = &tfs->nextfs; |
| 773 | nextfu = &tfs->nextfu; |
| 774 | |
| 775 | /* take the format string and break it up into format units */ |
| 776 | for (p = fmt;;) { |
| 777 | /* skip leading white space */ |
| 778 | for (; isspace(*p); ++p); |
| 779 | if (!*p) { |
| 780 | break; |
| 781 | } |
| 782 | |
| 783 | /* allocate a new format unit and link it in */ |
| 784 | /* NOSTRICT */ |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 785 | tfu = (FU *) xmalloc(sizeof(FU)); |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 786 | *nextfu = tfu; |
| 787 | nextfu = &tfu->nextfu; |
| 788 | tfu->reps = 1; |
| 789 | |
| 790 | /* if leading digit, repetition count */ |
| 791 | if (isdigit(*p)) { |
| 792 | for (savep = p; isdigit(*p); ++p); |
| 793 | if (!isspace(*p) && *p != '/') { |
| 794 | error_msg_and_die("hexdump: bad format {%s}", fmt); |
| 795 | } |
| 796 | /* may overwrite either white space or slash */ |
| 797 | tfu->reps = atoi(savep); |
| 798 | tfu->flags = F_SETREP; |
| 799 | /* skip trailing white space */ |
| 800 | for (++p; isspace(*p); ++p); |
| 801 | } |
| 802 | |
| 803 | /* skip slash and trailing white space */ |
| 804 | if (*p == '/') { |
| 805 | while (isspace(*++p)); |
| 806 | } |
| 807 | |
| 808 | /* byte count */ |
| 809 | if (isdigit(*p)) { |
| 810 | for (savep = p; isdigit(*p); ++p); |
| 811 | if (!isspace(*p)) { |
| 812 | error_msg_and_die("hexdump: bad format {%s}", fmt); |
| 813 | } |
| 814 | tfu->bcnt = atoi(savep); |
| 815 | /* skip trailing white space */ |
| 816 | for (++p; isspace(*p); ++p); |
| 817 | } |
| 818 | |
| 819 | /* format */ |
| 820 | if (*p != '"') { |
| 821 | error_msg_and_die("hexdump: bad format {%s}", fmt); |
| 822 | } |
| 823 | for (savep = ++p; *p != '"';) { |
| 824 | if (*p++ == 0) { |
| 825 | error_msg_and_die("hexdump: bad format {%s}", fmt); |
| 826 | } |
| 827 | } |
| 828 | if (!(tfu->fmt = malloc(p - savep + 1))) { |
| 829 | perror_msg_and_die("hexdump"); |
| 830 | } |
| 831 | strncpy(tfu->fmt, savep, p - savep); |
| 832 | tfu->fmt[p - savep] = '\0'; |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 833 | /* escape(tfu->fmt); */ |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 834 | |
| 835 | p1 = tfu->fmt; |
| 836 | |
| 837 | /* alphabetic escape sequences have to be done in place */ |
| 838 | for (p2 = p1;; ++p1, ++p2) { |
| 839 | if (!*p1) { |
| 840 | *p2 = *p1; |
| 841 | break; |
| 842 | } |
| 843 | if (*p1 == '\\') { |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 844 | switch (*++p1) { |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 845 | case 'a': |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 846 | /* *p2 = '\a'; */ |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 847 | *p2 = '\007'; |
| 848 | break; |
| 849 | case 'b': |
| 850 | *p2 = '\b'; |
| 851 | break; |
| 852 | case 'f': |
| 853 | *p2 = '\f'; |
| 854 | break; |
| 855 | case 'n': |
| 856 | *p2 = '\n'; |
| 857 | break; |
| 858 | case 'r': |
| 859 | *p2 = '\r'; |
| 860 | break; |
| 861 | case 't': |
| 862 | *p2 = '\t'; |
| 863 | break; |
| 864 | case 'v': |
| 865 | *p2 = '\v'; |
| 866 | break; |
| 867 | default: |
| 868 | *p2 = *p1; |
| 869 | break; |
| 870 | } |
| 871 | } |
| 872 | } |
| 873 | |
| 874 | p++; |
| 875 | } |
| 876 | } |
Glenn L McGrath | 9fef17d | 2002-08-22 18:41:20 +0000 | [diff] [blame] | 877 | |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 878 | /* |
| 879 | * Copyright (c) 1989 The Regents of the University of California. |
| 880 | * All rights reserved. |
| 881 | * |
| 882 | * Redistribution and use in source and binary forms, with or without |
| 883 | * modification, are permitted provided that the following conditions |
| 884 | * are met: |
| 885 | * 1. Redistributions of source code must retain the above copyright |
| 886 | * notice, this list of conditions and the following disclaimer. |
| 887 | * 2. Redistributions in binary form must reproduce the above copyright |
| 888 | * notice, this list of conditions and the following disclaimer in the |
| 889 | * documentation and/or other materials provided with the distribution. |
Aaron Lehmann | 69d4178 | 2002-06-23 22:25:24 +0000 | [diff] [blame] | 890 | * 3. Neither the name of the University nor the names of its contributors |
Glenn L McGrath | 6028111 | 2001-11-02 11:39:46 +0000 | [diff] [blame] | 891 | * may be used to endorse or promote products derived from this software |
| 892 | * without specific prior written permission. |
| 893 | * |
| 894 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 895 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 896 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 897 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 898 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 899 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 900 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 901 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 902 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 903 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 904 | * SUCH DAMAGE. |
| 905 | */ |