1 /* 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Guido van Rossum. 7 * 8 * %sccs.include.redist.c% 9 */ 10 11 #if defined(LIBC_SCCS) && !defined(lint) 12 static char sccsid[] = "@(#)glob.c 8.1 (Berkeley) 06/04/93"; 13 #endif /* LIBC_SCCS and not lint */ 14 15 /* 16 * glob(3) -- a superset of the one defined in POSIX 1003.2. 17 * 18 * The [!...] convention to negate a range is supported (SysV, Posix, ksh). 19 * 20 * Optional extra services, controlled by flags not defined by POSIX: 21 * 22 * GLOB_QUOTE: 23 * Escaping convention: \ inhibits any special meaning the following 24 * character might have (except \ at end of string is retained). 25 * GLOB_MAGCHAR: 26 * Set in gl_flags if pattern contained a globbing character. 27 * GLOB_NOMAGIC: 28 * Same as GLOB_NOCHECK, but it will only append pattern if it did 29 * not contain any magic characters. [Used in csh style globbing] 30 * GLOB_ALTDIRFUNC: 31 * Use alternately specified directory access functions. 32 * GLOB_TILDE: 33 * expand ~user/foo to the /home/dir/of/user/foo 34 * GLOB_BRACE: 35 * expand {1,2}{a,b} to 1a 1b 2a 2b 36 * gl_matchc: 37 * Number of matches in the current invocation of glob. 38 */ 39 40 #include <sys/param.h> 41 #include <sys/stat.h> 42 43 #include <ctype.h> 44 #include <dirent.h> 45 #include <errno.h> 46 #include <glob.h> 47 #include <pwd.h> 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <string.h> 51 #include <unistd.h> 52 53 #define DOLLAR '$' 54 #define DOT '.' 55 #define EOS '\0' 56 #define LBRACKET '[' 57 #define NOT '!' 58 #define QUESTION '?' 59 #define QUOTE '\\' 60 #define RANGE '-' 61 #define RBRACKET ']' 62 #define SEP '/' 63 #define STAR '*' 64 #define TILDE '~' 65 #define UNDERSCORE '_' 66 #define LBRACE '{' 67 #define RBRACE '}' 68 #define SLASH '/' 69 #define COMMA ',' 70 71 #ifndef DEBUG 72 73 #define M_QUOTE 0x8000 74 #define M_PROTECT 0x4000 75 #define M_MASK 0xffff 76 #define M_ASCII 0x00ff 77 78 typedef u_short Char; 79 80 #else 81 82 #define M_QUOTE 0x80 83 #define M_PROTECT 0x40 84 #define M_MASK 0xff 85 #define M_ASCII 0x7f 86 87 typedef char Char; 88 89 #endif 90 91 92 #define CHAR(c) ((Char)((c)&M_ASCII)) 93 #define META(c) ((Char)((c)|M_QUOTE)) 94 #define M_ALL META('*') 95 #define M_END META(']') 96 #define M_NOT META('!') 97 #define M_ONE META('?') 98 #define M_RNG META('-') 99 #define M_SET META('[') 100 #define ismeta(c) (((c)&M_QUOTE) != 0) 101 102 103 static int compare __P((const void *, const void *)); 104 static void g_Ctoc __P((const Char *, char *)); 105 static int g_lstat __P((Char *, struct stat *, glob_t *)); 106 static DIR *g_opendir __P((Char *, glob_t *)); 107 static Char *g_strchr __P((Char *, int)); 108 #ifdef notdef 109 static Char *g_strcat __P((Char *, const Char *)); 110 #endif 111 static int g_stat __P((Char *, struct stat *, glob_t *)); 112 static int glob0 __P((const Char *, glob_t *)); 113 static int glob1 __P((Char *, glob_t *)); 114 static int glob2 __P((Char *, Char *, Char *, glob_t *)); 115 static int glob3 __P((Char *, Char *, Char *, Char *, glob_t *)); 116 static int globextend __P((const Char *, glob_t *)); 117 static const Char * globtilde __P((const Char *, Char *, glob_t *)); 118 static int globexp1 __P((const Char *, glob_t *)); 119 static int globexp2 __P((const Char *, const Char *, glob_t *, int *)); 120 static int match __P((Char *, Char *, Char *)); 121 #ifdef DEBUG 122 static void qprintf __P((const char *, Char *)); 123 #endif 124 125 int 126 glob(pattern, flags, errfunc, pglob) 127 const char *pattern; 128 int flags, (*errfunc) __P((const char *, int)); 129 glob_t *pglob; 130 { 131 const u_char *patnext; 132 int c; 133 Char *bufnext, *bufend, patbuf[MAXPATHLEN+1]; 134 135 patnext = (u_char *) pattern; 136 if (!(flags & GLOB_APPEND)) { 137 pglob->gl_pathc = 0; 138 pglob->gl_pathv = NULL; 139 if (!(flags & GLOB_DOOFFS)) 140 pglob->gl_offs = 0; 141 } 142 pglob->gl_flags = flags & ~GLOB_MAGCHAR; 143 pglob->gl_errfunc = errfunc; 144 pglob->gl_matchc = 0; 145 146 bufnext = patbuf; 147 bufend = bufnext + MAXPATHLEN; 148 if (flags & GLOB_QUOTE) { 149 /* Protect the quoted characters. */ 150 while (bufnext < bufend && (c = *patnext++) != EOS) 151 if (c == QUOTE) { 152 if ((c = *patnext++) == EOS) { 153 c = QUOTE; 154 --patnext; 155 } 156 *bufnext++ = c | M_PROTECT; 157 } 158 else 159 *bufnext++ = c; 160 } 161 else 162 while (bufnext < bufend && (c = *patnext++) != EOS) 163 *bufnext++ = c; 164 *bufnext = EOS; 165 166 if (flags & GLOB_BRACE) 167 return globexp1(patbuf, pglob); 168 else 169 return glob0(patbuf, pglob); 170 } 171 172 /* 173 * Expand recursively a glob {} pattern. When there is no more expansion 174 * invoke the standard globbing routine to glob the rest of the magic 175 * characters 176 */ 177 static int globexp1(pattern, pglob) 178 const Char *pattern; 179 glob_t *pglob; 180 { 181 const Char* ptr = pattern; 182 int rv; 183 184 /* Protect a single {}, for find(1), like csh */ 185 if (pattern[0] == LBRACE && pattern[1] == RBRACE && pattern[2] == EOS) 186 return glob0(pattern, pglob); 187 188 while ((ptr = (const Char *) g_strchr((Char *) ptr, LBRACE)) != NULL) 189 if (!globexp2(ptr, pattern, pglob, &rv)) 190 return rv; 191 192 return glob0(pattern, pglob); 193 } 194 195 196 /* 197 * Recursive brace globbing helper. Tries to expand a single brace. 198 * If it succeeds then it invokes globexp1 with the new pattern. 199 * If it fails then it tries to glob the rest of the pattern and returns. 200 */ 201 static int globexp2(ptr, pattern, pglob, rv) 202 const Char *ptr, *pattern; 203 glob_t *pglob; 204 int *rv; 205 { 206 int i; 207 Char *lm, *ls; 208 const Char *pe, *pm, *pl; 209 Char patbuf[MAXPATHLEN + 1]; 210 211 /* copy part up to the brace */ 212 for (lm = patbuf, pm = pattern; pm != ptr; *lm++ = *pm++) 213 continue; 214 ls = lm; 215 216 /* Find the balanced brace */ 217 for (i = 0, pe = ++ptr; *pe; pe++) 218 if (*pe == LBRACKET) { 219 /* Ignore everything between [] */ 220 for (pm = pe++; *pe != RBRACKET && *pe != EOS; pe++) 221 continue; 222 if (*pe == EOS) { 223 /* 224 * We could not find a matching RBRACKET. 225 * Ignore and just look for RBRACE 226 */ 227 pe = pm; 228 } 229 } 230 else if (*pe == LBRACE) 231 i++; 232 else if (*pe == RBRACE) { 233 if (i == 0) 234 break; 235 i--; 236 } 237 238 /* Non matching braces; just glob the pattern */ 239 if (i != 0 || *pe == EOS) { 240 *rv = glob0(patbuf, pglob); 241 return 0; 242 } 243 244 for (i = 0, pl = pm = ptr; pm <= pe; pm++) 245 switch (*pm) { 246 case LBRACKET: 247 /* Ignore everything between [] */ 248 for (pl = pm++; *pm != RBRACKET && *pm != EOS; pm++) 249 continue; 250 if (*pm == EOS) { 251 /* 252 * We could not find a matching RBRACKET. 253 * Ignore and just look for RBRACE 254 */ 255 pm = pl; 256 } 257 break; 258 259 case LBRACE: 260 i++; 261 break; 262 263 case RBRACE: 264 if (i) { 265 i--; 266 break; 267 } 268 /* FALLTHROUGH */ 269 case COMMA: 270 if (i && *pm == COMMA) 271 break; 272 else { 273 /* Append the current string */ 274 for (lm = ls; (pl < pm); *lm++ = *pl++) 275 continue; 276 /* 277 * Append the rest of the pattern after the 278 * closing brace 279 */ 280 for (pl = pe + 1; (*lm++ = *pl++) != EOS;) 281 continue; 282 283 /* Expand the current pattern */ 284 #ifdef DEBUG 285 qprintf("globexp2:", patbuf); 286 #endif 287 *rv = globexp1(patbuf, pglob); 288 289 /* move after the comma, to the next string */ 290 pl = pm + 1; 291 } 292 break; 293 294 default: 295 break; 296 } 297 *rv = 0; 298 return 0; 299 } 300 301 302 303 /* 304 * expand tilde from the passwd file. 305 */ 306 static const Char * 307 globtilde(pattern, patbuf, pglob) 308 const Char *pattern; 309 Char *patbuf; 310 glob_t *pglob; 311 { 312 struct passwd *pwd; 313 char *h; 314 const Char *p; 315 Char *b; 316 317 if (*pattern != TILDE || !(pglob->gl_flags & GLOB_TILDE)) 318 return pattern; 319 320 /* Copy up to the end of the string or / */ 321 for (p = pattern + 1, h = (char *) patbuf; *p && *p != SLASH; 322 *h++ = *p++) 323 continue; 324 325 *h = EOS; 326 327 if (((char *) patbuf)[0] == EOS) { 328 /* 329 * handle a plain ~ or ~/ by expanding $HOME 330 * first and then trying the password file 331 */ 332 if ((h = getenv("HOME")) == NULL) { 333 if ((pwd = getpwuid(getuid())) == NULL) 334 return pattern; 335 else 336 h = pwd->pw_dir; 337 } 338 } 339 else { 340 /* 341 * Expand a ~user 342 */ 343 if ((pwd = getpwnam((char*) patbuf)) == NULL) 344 return pattern; 345 else 346 h = pwd->pw_dir; 347 } 348 349 /* Copy the home directory */ 350 for (b = patbuf; *h; *b++ = *h++) 351 continue; 352 353 /* Append the rest of the pattern */ 354 while ((*b++ = *p++) != EOS) 355 continue; 356 357 return patbuf; 358 } 359 360 361 /* 362 * The main glob() routine: compiles the pattern (optionally processing 363 * quotes), calls glob1() to do the real pattern matching, and finally 364 * sorts the list (unless unsorted operation is requested). Returns 0 365 * if things went well, nonzero if errors occurred. It is not an error 366 * to find no matches. 367 */ 368 static int 369 glob0(pattern, pglob) 370 const Char *pattern; 371 glob_t *pglob; 372 { 373 const Char *qpatnext; 374 int c, err, oldpathc; 375 Char *bufnext, patbuf[MAXPATHLEN+1]; 376 377 qpatnext = globtilde(pattern, patbuf, pglob); 378 379 oldpathc = pglob->gl_pathc; 380 pglob->gl_matchc = 0; 381 382 bufnext = patbuf; 383 384 /* We don't need to check for buffer overflow any more. */ 385 while ((c = *qpatnext++) != EOS) { 386 switch (c) { 387 case LBRACKET: 388 c = *qpatnext; 389 if (c == NOT) 390 ++qpatnext; 391 if (*qpatnext == EOS || 392 g_strchr((Char *) qpatnext+1, RBRACKET) == NULL) { 393 *bufnext++ = LBRACKET; 394 if (c == NOT) 395 --qpatnext; 396 break; 397 } 398 *bufnext++ = M_SET; 399 if (c == NOT) 400 *bufnext++ = M_NOT; 401 c = *qpatnext++; 402 do { 403 *bufnext++ = CHAR(c); 404 if (*qpatnext == RANGE && 405 (c = qpatnext[1]) != RBRACKET) { 406 *bufnext++ = M_RNG; 407 *bufnext++ = CHAR(c); 408 qpatnext += 2; 409 } 410 } while ((c = *qpatnext++) != RBRACKET); 411 pglob->gl_flags |= GLOB_MAGCHAR; 412 *bufnext++ = M_END; 413 break; 414 case QUESTION: 415 pglob->gl_flags |= GLOB_MAGCHAR; 416 *bufnext++ = M_ONE; 417 break; 418 case STAR: 419 pglob->gl_flags |= GLOB_MAGCHAR; 420 /* collapse adjacent stars to one, 421 * to avoid exponential behavior 422 */ 423 if (bufnext == patbuf || bufnext[-1] != M_ALL) 424 *bufnext++ = M_ALL; 425 break; 426 default: 427 *bufnext++ = CHAR(c); 428 break; 429 } 430 } 431 *bufnext = EOS; 432 #ifdef DEBUG 433 qprintf("glob0:", patbuf); 434 #endif 435 436 if ((err = glob1(patbuf, pglob)) != 0) 437 return(err); 438 439 /* 440 * If there was no match we are going to append the pattern 441 * if GLOB_NOCHECK was specified or if GLOB_NOMAGIC was specified 442 * and the pattern did not contain any magic characters 443 * GLOB_NOMAGIC is there just for compatibility with csh. 444 */ 445 if (pglob->gl_pathc == oldpathc && 446 ((pglob->gl_flags & GLOB_NOCHECK) || 447 ((pglob->gl_flags & (GLOB_NOMAGIC|GLOB_BRACE|GLOB_TILDE)) || 448 !(pglob->gl_flags & GLOB_MAGCHAR)))) 449 return(globextend(pattern, pglob)); 450 else if (!(pglob->gl_flags & GLOB_NOSORT)) 451 qsort(pglob->gl_pathv + pglob->gl_offs + oldpathc, 452 pglob->gl_pathc - oldpathc, sizeof(char *), compare); 453 return(0); 454 } 455 456 static int 457 compare(p, q) 458 const void *p, *q; 459 { 460 return(strcmp(*(char **)p, *(char **)q)); 461 } 462 463 static int 464 glob1(pattern, pglob) 465 Char *pattern; 466 glob_t *pglob; 467 { 468 Char pathbuf[MAXPATHLEN+1]; 469 470 /* A null pathname is invalid -- POSIX 1003.1 sect. 2.4. */ 471 if (*pattern == EOS) 472 return(0); 473 return(glob2(pathbuf, pathbuf, pattern, pglob)); 474 } 475 476 /* 477 * The functions glob2 and glob3 are mutually recursive; there is one level 478 * of recursion for each segment in the pattern that contains one or more 479 * meta characters. 480 */ 481 static int 482 glob2(pathbuf, pathend, pattern, pglob) 483 Char *pathbuf, *pathend, *pattern; 484 glob_t *pglob; 485 { 486 struct stat sb; 487 Char *p, *q; 488 int anymeta; 489 490 /* 491 * Loop over pattern segments until end of pattern or until 492 * segment with meta character found. 493 */ 494 for (anymeta = 0;;) { 495 if (*pattern == EOS) { /* End of pattern? */ 496 *pathend = EOS; 497 if (g_lstat(pathbuf, &sb, pglob)) 498 return(0); 499 500 if (((pglob->gl_flags & GLOB_MARK) && 501 pathend[-1] != SEP) && (S_ISDIR(sb.st_mode) 502 || (S_ISLNK(sb.st_mode) && 503 (g_stat(pathbuf, &sb, pglob) == 0) && 504 S_ISDIR(sb.st_mode)))) { 505 *pathend++ = SEP; 506 *pathend = EOS; 507 } 508 ++pglob->gl_matchc; 509 return(globextend(pathbuf, pglob)); 510 } 511 512 /* Find end of next segment, copy tentatively to pathend. */ 513 q = pathend; 514 p = pattern; 515 while (*p != EOS && *p != SEP) { 516 if (ismeta(*p)) 517 anymeta = 1; 518 *q++ = *p++; 519 } 520 521 if (!anymeta) { /* No expansion, do next segment. */ 522 pathend = q; 523 pattern = p; 524 while (*pattern == SEP) 525 *pathend++ = *pattern++; 526 } else /* Need expansion, recurse. */ 527 return(glob3(pathbuf, pathend, pattern, p, pglob)); 528 } 529 /* NOTREACHED */ 530 } 531 532 static int 533 glob3(pathbuf, pathend, pattern, restpattern, pglob) 534 Char *pathbuf, *pathend, *pattern, *restpattern; 535 glob_t *pglob; 536 { 537 register struct dirent *dp; 538 DIR *dirp; 539 int err; 540 char buf[MAXPATHLEN]; 541 542 /* 543 * The readdirfunc declaration can't be prototyped, because it is 544 * assigned, below, to two functions which are prototyped in glob.h 545 * and dirent.h as taking pointers to differently typed opaque 546 * structures. 547 */ 548 struct dirent *(*readdirfunc)(); 549 550 *pathend = EOS; 551 errno = 0; 552 553 if ((dirp = g_opendir(pathbuf, pglob)) == NULL) { 554 /* TODO: don't call for ENOENT or ENOTDIR? */ 555 if (pglob->gl_errfunc) { 556 g_Ctoc(pathbuf, buf); 557 if (pglob->gl_errfunc(buf, errno) || 558 pglob->gl_flags & GLOB_ERR) 559 return (GLOB_ABEND); 560 } 561 return(0); 562 } 563 564 err = 0; 565 566 /* Search directory for matching names. */ 567 if (pglob->gl_flags & GLOB_ALTDIRFUNC) 568 readdirfunc = pglob->gl_readdir; 569 else 570 readdirfunc = readdir; 571 while ((dp = (*readdirfunc)(dirp))) { 572 register u_char *sc; 573 register Char *dc; 574 575 /* Initial DOT must be matched literally. */ 576 if (dp->d_name[0] == DOT && *pattern != DOT) 577 continue; 578 for (sc = (u_char *) dp->d_name, dc = pathend; 579 (*dc++ = *sc++) != EOS;) 580 continue; 581 if (!match(pathend, pattern, restpattern)) { 582 *pathend = EOS; 583 continue; 584 } 585 err = glob2(pathbuf, --dc, restpattern, pglob); 586 if (err) 587 break; 588 } 589 590 if (pglob->gl_flags & GLOB_ALTDIRFUNC) 591 (*pglob->gl_closedir)(dirp); 592 else 593 closedir(dirp); 594 return(err); 595 } 596 597 598 /* 599 * Extend the gl_pathv member of a glob_t structure to accomodate a new item, 600 * add the new item, and update gl_pathc. 601 * 602 * This assumes the BSD realloc, which only copies the block when its size 603 * crosses a power-of-two boundary; for v7 realloc, this would cause quadratic 604 * behavior. 605 * 606 * Return 0 if new item added, error code if memory couldn't be allocated. 607 * 608 * Invariant of the glob_t structure: 609 * Either gl_pathc is zero and gl_pathv is NULL; or gl_pathc > 0 and 610 * gl_pathv points to (gl_offs + gl_pathc + 1) items. 611 */ 612 static int 613 globextend(path, pglob) 614 const Char *path; 615 glob_t *pglob; 616 { 617 register char **pathv; 618 register int i; 619 u_int newsize; 620 char *copy; 621 const Char *p; 622 623 newsize = sizeof(*pathv) * (2 + pglob->gl_pathc + pglob->gl_offs); 624 pathv = pglob->gl_pathv ? 625 realloc((char *)pglob->gl_pathv, newsize) : 626 malloc(newsize); 627 if (pathv == NULL) 628 return(GLOB_NOSPACE); 629 630 if (pglob->gl_pathv == NULL && pglob->gl_offs > 0) { 631 /* first time around -- clear initial gl_offs items */ 632 pathv += pglob->gl_offs; 633 for (i = pglob->gl_offs; --i >= 0; ) 634 *--pathv = NULL; 635 } 636 pglob->gl_pathv = pathv; 637 638 for (p = path; *p++;) 639 continue; 640 if ((copy = malloc(p - path)) != NULL) { 641 g_Ctoc(path, copy); 642 pathv[pglob->gl_offs + pglob->gl_pathc++] = copy; 643 } 644 pathv[pglob->gl_offs + pglob->gl_pathc] = NULL; 645 return(copy == NULL ? GLOB_NOSPACE : 0); 646 } 647 648 649 /* 650 * pattern matching function for filenames. Each occurrence of the * 651 * pattern causes a recursion level. 652 */ 653 static int 654 match(name, pat, patend) 655 register Char *name, *pat, *patend; 656 { 657 int ok, negate_range; 658 Char c, k; 659 660 while (pat < patend) { 661 c = *pat++; 662 switch (c & M_MASK) { 663 case M_ALL: 664 if (pat == patend) 665 return(1); 666 do 667 if (match(name, pat, patend)) 668 return(1); 669 while (*name++ != EOS); 670 return(0); 671 case M_ONE: 672 if (*name++ == EOS) 673 return(0); 674 break; 675 case M_SET: 676 ok = 0; 677 if ((k = *name++) == EOS) 678 return(0); 679 if ((negate_range = ((*pat & M_MASK) == M_NOT)) != EOS) 680 ++pat; 681 while (((c = *pat++) & M_MASK) != M_END) 682 if ((*pat & M_MASK) == M_RNG) { 683 if (c <= k && k <= pat[1]) 684 ok = 1; 685 pat += 2; 686 } else if (c == k) 687 ok = 1; 688 if (ok == negate_range) 689 return(0); 690 break; 691 default: 692 if (*name++ != c) 693 return(0); 694 break; 695 } 696 } 697 return(*name == EOS); 698 } 699 700 /* Free allocated data belonging to a glob_t structure. */ 701 void 702 globfree(pglob) 703 glob_t *pglob; 704 { 705 register int i; 706 register char **pp; 707 708 if (pglob->gl_pathv != NULL) { 709 pp = pglob->gl_pathv + pglob->gl_offs; 710 for (i = pglob->gl_pathc; i--; ++pp) 711 if (*pp) 712 free(*pp); 713 free(pglob->gl_pathv); 714 } 715 } 716 717 static DIR * 718 g_opendir(str, pglob) 719 register Char *str; 720 glob_t *pglob; 721 { 722 char buf[MAXPATHLEN]; 723 724 if (!*str) 725 strcpy(buf, "."); 726 else 727 g_Ctoc(str, buf); 728 729 if (pglob->gl_flags & GLOB_ALTDIRFUNC) 730 return((*pglob->gl_opendir)(buf)); 731 732 return(opendir(buf)); 733 } 734 735 static int 736 g_lstat(fn, sb, pglob) 737 register Char *fn; 738 struct stat *sb; 739 glob_t *pglob; 740 { 741 char buf[MAXPATHLEN]; 742 743 g_Ctoc(fn, buf); 744 if (pglob->gl_flags & GLOB_ALTDIRFUNC) 745 return((*pglob->gl_lstat)(buf, sb)); 746 return(lstat(buf, sb)); 747 } 748 749 static int 750 g_stat(fn, sb, pglob) 751 register Char *fn; 752 struct stat *sb; 753 glob_t *pglob; 754 { 755 char buf[MAXPATHLEN]; 756 757 g_Ctoc(fn, buf); 758 if (pglob->gl_flags & GLOB_ALTDIRFUNC) 759 return((*pglob->gl_stat)(buf, sb)); 760 return(stat(buf, sb)); 761 } 762 763 static Char * 764 g_strchr(str, ch) 765 Char *str; 766 int ch; 767 { 768 do { 769 if (*str == ch) 770 return (str); 771 } while (*str++); 772 return (NULL); 773 } 774 775 #ifdef notdef 776 static Char * 777 g_strcat(dst, src) 778 Char *dst; 779 const Char* src; 780 { 781 Char *sdst = dst; 782 783 while (*dst++) 784 continue; 785 --dst; 786 while((*dst++ = *src++) != EOS) 787 continue; 788 789 return (sdst); 790 } 791 #endif 792 793 static void 794 g_Ctoc(str, buf) 795 register const Char *str; 796 char *buf; 797 { 798 register char *dc; 799 800 for (dc = buf; (*dc++ = *str++) != EOS;) 801 continue; 802 } 803 804 #ifdef DEBUG 805 static void 806 qprintf(str, s) 807 const char *str; 808 register Char *s; 809 { 810 register Char *p; 811 812 (void)printf("%s:\n", str); 813 for (p = s; *p; p++) 814 (void)printf("%c", CHAR(*p)); 815 (void)printf("\n"); 816 for (p = s; *p; p++) 817 (void)printf("%c", *p & M_PROTECT ? '"' : ' '); 818 (void)printf("\n"); 819 for (p = s; *p; p++) 820 (void)printf("%c", ismeta(*p) ? '_' : ' '); 821 (void)printf("\n"); 822 } 823 #endif 824