1 /* 2 * Copyright (c) 1989 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Guido van Rossum. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 #if defined(LIBC_SCCS) && !defined(lint) 33 static char sccsid[] = "@(#)glob.c 5.12 (Berkeley) 6/24/91"; 34 #endif /* LIBC_SCCS and not lint */ 35 /* 36 * Glob: the interface is a superset of the one defined in POSIX 1003.2, 37 * draft 9. 38 * 39 * The [!...] convention to negate a range is supported (SysV, Posix, ksh). 40 * 41 * Optional extra services, controlled by flags not defined by POSIX: 42 * 43 * GLOB_QUOTE: 44 * Escaping convention: \ inhibits any special meaning the following 45 * character might have (except \ at end of string is retained). 46 * GLOB_MAGCHAR: 47 * Set in gl_flags if pattern contained a globbing character. 48 * GLOB_ALTNOT: 49 * Use ^ instead of ! for "not". 50 * gl_matchc: 51 * Number of matches in the current invocation of glob. 52 */ 53 54 #ifdef WINNT_NATIVE 55 #pragma warning(disable:4244) 56 #endif /* WINNT_NATIVE */ 57 58 #define Char __Char 59 #include "sh.h" 60 #include "glob.h" 61 62 #undef Char 63 #undef QUOTE 64 #undef TILDE 65 #undef META 66 #undef ismeta 67 #undef Strchr 68 69 #ifndef S_ISDIR 70 #define S_ISDIR(a) (((a) & S_IFMT) == S_IFDIR) 71 #endif 72 73 #if !defined(S_ISLNK) && defined(S_IFLNK) 74 #define S_ISLNK(a) (((a) & S_IFMT) == S_IFLNK) 75 #endif 76 77 #if !defined(S_ISLNK) && !defined(lstat) 78 #define lstat stat 79 #endif 80 81 typedef unsigned short Char; 82 83 static int glob1 (Char *, glob_t *, int); 84 static int glob2 (struct strbuf *, const Char *, glob_t *, int); 85 static int glob3 (struct strbuf *, const Char *, const Char *, 86 const Char *, glob_t *, int); 87 static void globextend (const char *, glob_t *); 88 static int match (const char *, const Char *, const Char *, 89 int); 90 static int compare (const void *, const void *); 91 static DIR *Opendir (const char *); 92 #ifdef S_IFLNK 93 static int Lstat (const char *, struct stat *); 94 #endif 95 static int Stat (const char *, struct stat *sb); 96 static Char *Strchr (Char *, int); 97 #ifdef DEBUG 98 static void qprintf (const Char *); 99 #endif 100 101 #define DOLLAR '$' 102 #define DOT '.' 103 #define EOS '\0' 104 #define LBRACKET '[' 105 #define NOT '!' 106 #define ALTNOT '^' 107 #define QUESTION '?' 108 #define QUOTE '\\' 109 #define RANGE '-' 110 #define RBRACKET ']' 111 #define SEP '/' 112 #define STAR '*' 113 #define TILDE '~' 114 #define UNDERSCORE '_' 115 116 #define M_META 0x8000 117 #define M_PROTECT 0x4000 118 #define M_MASK 0xffff 119 #define M_ASCII 0x00ff 120 121 #define LCHAR(c) ((c)&M_ASCII) 122 #define META(c) ((c)|M_META) 123 #define M_ALL META('*') 124 #define M_END META(']') 125 #define M_NOT META('!') 126 #define M_ALTNOT META('^') 127 #define M_ONE META('?') 128 #define M_RNG META('-') 129 #define M_SET META('[') 130 #define ismeta(c) (((c)&M_META) != 0) 131 132 int 133 globcharcoll(__Char c1, __Char c2, int cs) 134 { 135 #if defined(NLS) && defined(LC_COLLATE) && defined(HAVE_STRCOLL) 136 # if defined(WIDE_STRINGS) 137 wchar_t s1[2], s2[2]; 138 139 if (c1 == c2) 140 return (0); 141 if (cs) { 142 c1 = towlower(c1); 143 c2 = towlower(c2); 144 } else { 145 #ifndef __FreeBSD__ 146 /* This should not be here, but I'll rather leave it in than engage in 147 a LC_COLLATE flamewar about a shell I don't use... */ 148 if (iswlower(c1) && iswupper(c2)) 149 return (1); 150 if (iswupper(c1) && iswlower(c2)) 151 return (-1); 152 #endif 153 } 154 s1[0] = c1; 155 s2[0] = c2; 156 s1[1] = s2[1] = '\0'; 157 #ifdef __FreeBSD__ 158 return wcscmp(s1, s2); 159 #else 160 return wcscoll(s1, s2); 161 #endif 162 # else /* not WIDE_STRINGS */ 163 char s1[2], s2[2]; 164 165 if (c1 == c2) 166 return (0); 167 /* 168 * From kevin lyda <kevin@suberic.net>: 169 * strcoll does not guarantee case sorting, so we pre-process now: 170 */ 171 if (cs) { 172 c1 = islower(c1) ? c1 : tolower(c1); 173 c2 = islower(c2) ? c2 : tolower(c2); 174 } else { 175 if (islower(c1) && isupper(c2)) 176 return (1); 177 if (isupper(c1) && islower(c2)) 178 return (-1); 179 } 180 s1[0] = c1; 181 s2[0] = c2; 182 s1[1] = s2[1] = '\0'; 183 return strcoll(s1, s2); 184 # endif 185 #else 186 return (c1 - c2); 187 #endif 188 } 189 190 /* 191 * Need to dodge two kernel bugs: 192 * opendir("") != opendir(".") 193 * NAMEI_BUG: on plain files trailing slashes are ignored in some kernels. 194 * POSIX specifies that they should be ignored in directories. 195 */ 196 197 static DIR * 198 Opendir(const char *str) 199 { 200 #if defined(hpux) || defined(__hpux) 201 struct stat st; 202 #endif 203 204 if (!*str) 205 return (opendir(".")); 206 #if defined(hpux) || defined(__hpux) 207 /* 208 * Opendir on some device files hangs, so avoid it 209 */ 210 if (stat(str, &st) == -1 || !S_ISDIR(st.st_mode)) 211 return NULL; 212 #endif 213 return opendir(str); 214 } 215 216 #ifdef S_IFLNK 217 static int 218 Lstat(const char *fn, struct stat *sb) 219 { 220 int st; 221 222 st = lstat(fn, sb); 223 # ifdef NAMEI_BUG 224 if (*fn != 0 && strend(fn)[-1] == '/' && !S_ISDIR(sb->st_mode)) 225 st = -1; 226 # endif /* NAMEI_BUG */ 227 return st; 228 } 229 #else 230 #define Lstat Stat 231 #endif /* S_IFLNK */ 232 233 static int 234 Stat(const char *fn, struct stat *sb) 235 { 236 int st; 237 238 st = stat(fn, sb); 239 #ifdef NAMEI_BUG 240 if (*fn != 0 && strend(fn)[-1] == '/' && !S_ISDIR(sb->st_mode)) 241 st = -1; 242 #endif /* NAMEI_BUG */ 243 return st; 244 } 245 246 static Char * 247 Strchr(Char *str, int ch) 248 { 249 do 250 if (*str == ch) 251 return (str); 252 while (*str++); 253 return (NULL); 254 } 255 256 #ifdef DEBUG 257 static void 258 qprintf(const Char *s) 259 { 260 const Char *p; 261 262 for (p = s; *p; p++) 263 printf("%c", *p & 0xff); 264 printf("\n"); 265 for (p = s; *p; p++) 266 printf("%c", *p & M_PROTECT ? '"' : ' '); 267 printf("\n"); 268 for (p = s; *p; p++) 269 printf("%c", *p & M_META ? '_' : ' '); 270 printf("\n"); 271 } 272 #endif /* DEBUG */ 273 274 static int 275 compare(const void *p, const void *q) 276 { 277 #if defined(NLS) && defined(HAVE_STRCOLL) 278 return (strcoll(*(char *const *) p, *(char *const *) q)); 279 #else 280 return (strcmp(*(char *const *) p, *(char *const *) q)); 281 #endif /* NLS && HAVE_STRCOLL */ 282 } 283 284 /* 285 * The main glob() routine: compiles the pattern (optionally processing 286 * quotes), calls glob1() to do the real pattern matching, and finally 287 * sorts the list (unless unsorted operation is requested). Returns 0 288 * if things went well, nonzero if errors occurred. It is not an error 289 * to find no matches. 290 */ 291 int 292 glob(const char *pattern, int flags, int (*errfunc) (const char *, int), 293 glob_t *pglob) 294 { 295 int err, oldpathc; 296 Char *bufnext, m_not; 297 const unsigned char *patnext; 298 int c, not; 299 Char *qpatnext, *patbuf; 300 int no_match; 301 302 patnext = (const unsigned char *) pattern; 303 if (!(flags & GLOB_APPEND)) { 304 pglob->gl_pathc = 0; 305 pglob->gl_pathv = NULL; 306 if (!(flags & GLOB_DOOFFS)) 307 pglob->gl_offs = 0; 308 } 309 pglob->gl_flags = flags & ~GLOB_MAGCHAR; 310 pglob->gl_errfunc = errfunc; 311 oldpathc = pglob->gl_pathc; 312 pglob->gl_matchc = 0; 313 314 if (pglob->gl_flags & GLOB_ALTNOT) { 315 not = ALTNOT; 316 m_not = M_ALTNOT; 317 } 318 else { 319 not = NOT; 320 m_not = M_NOT; 321 } 322 323 patbuf = xmalloc((strlen(pattern) + 1) * sizeof(*patbuf)); 324 bufnext = patbuf; 325 326 no_match = *patnext == not; 327 if (no_match) 328 patnext++; 329 330 if (flags & GLOB_QUOTE) { 331 /* Protect the quoted characters */ 332 while ((c = *patnext++) != EOS) { 333 #ifdef WIDE_STRINGS 334 int len; 335 336 len = mblen((const char *)(patnext - 1), MB_LEN_MAX); 337 if (len == -1) 338 TCSH_IGNORE(mblen(NULL, 0)); 339 else if (len > 1) { 340 *bufnext++ = (Char) c; 341 while (--len != 0) 342 *bufnext++ = (Char) (*patnext++ | M_PROTECT); 343 } else 344 #endif /* WIDE_STRINGS */ 345 if (c == QUOTE) { 346 if ((c = *patnext++) == EOS) { 347 c = QUOTE; 348 --patnext; 349 } 350 *bufnext++ = (Char) (c | M_PROTECT); 351 } 352 else 353 *bufnext++ = (Char) c; 354 } 355 } 356 else 357 while ((c = *patnext++) != EOS) 358 *bufnext++ = (Char) c; 359 *bufnext = EOS; 360 361 bufnext = patbuf; 362 qpatnext = patbuf; 363 while ((c = *qpatnext++) != EOS) { 364 switch (c) { 365 case LBRACKET: 366 c = *qpatnext; 367 if (c == not) 368 ++qpatnext; 369 if (*qpatnext == EOS || 370 Strchr(qpatnext + 1, RBRACKET) == NULL) { 371 *bufnext++ = LBRACKET; 372 if (c == not) 373 --qpatnext; 374 break; 375 } 376 pglob->gl_flags |= GLOB_MAGCHAR; 377 *bufnext++ = M_SET; 378 if (c == not) 379 *bufnext++ = m_not; 380 c = *qpatnext++; 381 do { 382 *bufnext++ = LCHAR(c); 383 if (*qpatnext == RANGE && 384 (c = qpatnext[1]) != RBRACKET) { 385 *bufnext++ = M_RNG; 386 *bufnext++ = LCHAR(c); 387 qpatnext += 2; 388 } 389 } while ((c = *qpatnext++) != RBRACKET); 390 *bufnext++ = M_END; 391 break; 392 case QUESTION: 393 pglob->gl_flags |= GLOB_MAGCHAR; 394 *bufnext++ = M_ONE; 395 break; 396 case STAR: 397 pglob->gl_flags |= GLOB_MAGCHAR; 398 /* collapse adjacent stars to one [or three if globstar], 399 * to avoid exponential behavior 400 */ 401 if (bufnext == patbuf || bufnext[-1] != M_ALL || 402 ((flags & GLOB_STAR) != 0 && 403 (bufnext - 1 == patbuf || bufnext[-2] != M_ALL || 404 bufnext - 2 == patbuf || bufnext[-3] != M_ALL))) 405 *bufnext++ = M_ALL; 406 break; 407 default: 408 *bufnext++ = LCHAR(c); 409 break; 410 } 411 } 412 *bufnext = EOS; 413 #ifdef DEBUG 414 qprintf(patbuf); 415 #endif 416 417 if ((err = glob1(patbuf, pglob, no_match)) != 0) { 418 xfree(patbuf); 419 return (err); 420 } 421 422 /* 423 * If there was no match we are going to append the pattern 424 * if GLOB_NOCHECK was specified or if GLOB_NOMAGIC was specified 425 * and the pattern did not contain any magic characters 426 * GLOB_NOMAGIC is there just for compatibility with csh. 427 */ 428 if (pglob->gl_pathc == oldpathc && 429 ((flags & GLOB_NOCHECK) || 430 ((flags & GLOB_NOMAGIC) && !(pglob->gl_flags & GLOB_MAGCHAR)))) { 431 if (!(flags & GLOB_QUOTE)) 432 globextend(pattern, pglob); 433 else { 434 char *copy, *dest; 435 const char *src; 436 437 /* copy pattern, interpreting quotes */ 438 copy = xmalloc(strlen(pattern) + 1); 439 dest = copy; 440 src = pattern; 441 while (*src != EOS) { 442 if (*src == QUOTE) { 443 if (*++src == EOS) 444 --src; 445 } 446 *dest++ = *src++; 447 } 448 *dest = EOS; 449 globextend(copy, pglob); 450 xfree(copy); 451 } 452 xfree(patbuf); 453 return 0; 454 } 455 else if (!(flags & GLOB_NOSORT) && (pglob->gl_pathc != oldpathc)) 456 qsort(pglob->gl_pathv + pglob->gl_offs + oldpathc, 457 pglob->gl_pathc - oldpathc, sizeof(char *), compare); 458 xfree(patbuf); 459 return (0); 460 } 461 462 static int 463 glob1(Char *pattern, glob_t *pglob, int no_match) 464 { 465 struct strbuf pathbuf = strbuf_INIT; 466 int err; 467 468 /* 469 * a null pathname is invalid -- POSIX 1003.1 sect. 2.4. 470 */ 471 if (*pattern == EOS) 472 return (0); 473 err = glob2(&pathbuf, pattern, pglob, no_match); 474 xfree(pathbuf.s); 475 return err; 476 } 477 478 /* 479 * functions glob2 and glob3 are mutually recursive; there is one level 480 * of recursion for each segment in the pattern that contains one or 481 * more meta characters. 482 */ 483 static int 484 glob2(struct strbuf *pathbuf, const Char *pattern, glob_t *pglob, int no_match) 485 { 486 struct stat sbuf; 487 int anymeta; 488 const Char *p; 489 size_t orig_len; 490 491 /* 492 * loop over pattern segments until end of pattern or until segment with 493 * meta character found. 494 */ 495 anymeta = 0; 496 for (;;) { 497 if (*pattern == EOS) { /* end of pattern? */ 498 strbuf_terminate(pathbuf); 499 500 if (Lstat(pathbuf->s, &sbuf)) 501 return (0); 502 503 if (((pglob->gl_flags & GLOB_MARK) && 504 pathbuf->s[pathbuf->len - 1] != SEP) && 505 (S_ISDIR(sbuf.st_mode) 506 #ifdef S_IFLNK 507 || (S_ISLNK(sbuf.st_mode) && 508 (Stat(pathbuf->s, &sbuf) == 0) && 509 S_ISDIR(sbuf.st_mode)) 510 #endif 511 )) { 512 strbuf_append1(pathbuf, SEP); 513 strbuf_terminate(pathbuf); 514 } 515 ++pglob->gl_matchc; 516 globextend(pathbuf->s, pglob); 517 return 0; 518 } 519 520 /* find end of next segment, tentatively copy to pathbuf */ 521 p = pattern; 522 orig_len = pathbuf->len; 523 while (*p != EOS && *p != SEP) { 524 if (ismeta(*p)) 525 anymeta = 1; 526 strbuf_append1(pathbuf, *p++); 527 } 528 529 if (!anymeta) { /* no expansion, do next segment */ 530 pattern = p; 531 while (*pattern == SEP) 532 strbuf_append1(pathbuf, *pattern++); 533 } 534 else { /* need expansion, recurse */ 535 pathbuf->len = orig_len; 536 return (glob3(pathbuf, pattern, p, pattern, pglob, no_match)); 537 } 538 } 539 /* NOTREACHED */ 540 } 541 542 static size_t 543 One_Char_mbtowc(__Char *pwc, const Char *s, size_t n) 544 { 545 #ifdef WIDE_STRINGS 546 char buf[MB_LEN_MAX], *p; 547 548 if (n > MB_LEN_MAX) 549 n = MB_LEN_MAX; 550 p = buf; 551 while (p < buf + n && (*p++ = LCHAR(*s++)) != 0) 552 ; 553 return one_mbtowc(pwc, buf, n); 554 #else 555 *pwc = *s & CHAR; 556 return 1; 557 #endif 558 } 559 560 static int 561 glob3(struct strbuf *pathbuf, const Char *pattern, const Char *restpattern, 562 const Char *pglobstar, glob_t *pglob, int no_match) 563 { 564 DIR *dirp; 565 struct dirent *dp; 566 struct stat sbuf; 567 int err; 568 Char m_not = (pglob->gl_flags & GLOB_ALTNOT) ? M_ALTNOT : M_NOT; 569 size_t orig_len; 570 int globstar = 0; 571 int chase_symlinks = 0; 572 const Char *termstar = NULL; 573 574 strbuf_terminate(pathbuf); 575 orig_len = pathbuf->len; 576 errno = err = 0; 577 578 while (pglobstar < restpattern) { 579 __Char wc; 580 size_t width = One_Char_mbtowc(&wc, pglobstar, MB_LEN_MAX); 581 if ((pglobstar[0] & M_MASK) == M_ALL && 582 (pglobstar[width] & M_MASK) == M_ALL) { 583 globstar = 1; 584 chase_symlinks = (pglobstar[2 * width] & M_MASK) == M_ALL; 585 termstar = pglobstar + (2 + chase_symlinks) * width; 586 break; 587 } 588 pglobstar += width; 589 } 590 591 if (globstar) { 592 err = pglobstar==pattern && termstar==restpattern ? 593 *restpattern == EOS ? 594 glob2(pathbuf, restpattern - 1, pglob, no_match) : 595 glob2(pathbuf, restpattern + 1, pglob, no_match) : 596 glob3(pathbuf, pattern, restpattern, termstar, pglob, no_match); 597 if (err) 598 return err; 599 pathbuf->len = orig_len; 600 strbuf_terminate(pathbuf); 601 } 602 603 if (*pathbuf->s && (Lstat(pathbuf->s, &sbuf) || !S_ISDIR(sbuf.st_mode) 604 #ifdef S_IFLINK 605 && ((globstar && !chase_symlinks) || !S_ISLNK(sbuf.st_mode)) 606 #endif 607 )) 608 return 0; 609 610 if (!(dirp = Opendir(pathbuf->s))) { 611 /* todo: don't call for ENOENT or ENOTDIR? */ 612 if ((pglob->gl_errfunc && (*pglob->gl_errfunc) (pathbuf->s, errno)) || 613 (pglob->gl_flags & GLOB_ERR)) 614 return (GLOB_ABEND); 615 else 616 return (0); 617 } 618 619 /* search directory for matching names */ 620 while ((dp = readdir(dirp)) != NULL) { 621 /* initial DOT must be matched literally */ 622 if (dp->d_name[0] == DOT && *pattern != DOT) 623 if (!(pglob->gl_flags & GLOB_DOT) || !dp->d_name[1] || 624 (dp->d_name[1] == DOT && !dp->d_name[2])) 625 continue; /*unless globdot and not . or .. */ 626 pathbuf->len = orig_len; 627 strbuf_append(pathbuf, dp->d_name); 628 strbuf_terminate(pathbuf); 629 630 if (globstar) { 631 #ifdef S_IFLNK 632 if (!chase_symlinks && 633 (Lstat(pathbuf->s, &sbuf) || S_ISLNK(sbuf.st_mode))) 634 continue; 635 #endif 636 if (match(pathbuf->s + orig_len, pattern, termstar, 637 (int)m_not) == no_match) 638 continue; 639 strbuf_append1(pathbuf, SEP); 640 strbuf_terminate(pathbuf); 641 if ((err = glob2(pathbuf, pglobstar, pglob, no_match)) != 0) 642 break; 643 } else { 644 if (match(pathbuf->s + orig_len, pattern, restpattern, 645 (int) m_not) == no_match) 646 continue; 647 if ((err = glob2(pathbuf, restpattern, pglob, no_match)) != 0) 648 break; 649 } 650 } 651 /* todo: check error from readdir? */ 652 closedir(dirp); 653 return (err); 654 } 655 656 657 /* 658 * Extend the gl_pathv member of a glob_t structure to accomodate a new item, 659 * add the new item, and update gl_pathc. 660 * 661 * This assumes the BSD realloc, which only copies the block when its size 662 * crosses a power-of-two boundary; for v7 realloc, this would cause quadratic 663 * behavior. 664 * 665 * Return 0 if new item added, error code if memory couldn't be allocated. 666 * 667 * Invariant of the glob_t structure: 668 * Either gl_pathc is zero and gl_pathv is NULL; or gl_pathc > 0 and 669 * gl_pathv points to (gl_offs + gl_pathc + 1) items. 670 */ 671 static void 672 globextend(const char *path, glob_t *pglob) 673 { 674 char **pathv; 675 int i; 676 size_t newsize; 677 678 newsize = sizeof(*pathv) * (2 + pglob->gl_pathc + pglob->gl_offs); 679 pathv = xrealloc(pglob->gl_pathv, newsize); 680 681 if (pglob->gl_pathv == NULL && pglob->gl_offs > 0) { 682 /* first time around -- clear initial gl_offs items */ 683 pathv += pglob->gl_offs; 684 for (i = pglob->gl_offs; --i >= 0;) 685 *--pathv = NULL; 686 } 687 pglob->gl_pathv = pathv; 688 689 pathv[pglob->gl_offs + pglob->gl_pathc++] = strsave(path); 690 pathv[pglob->gl_offs + pglob->gl_pathc] = NULL; 691 } 692 693 /* 694 * pattern matching function for filenames. Each occurrence of the * 695 * pattern causes a recursion level. 696 */ 697 static int 698 match(const char *name, const Char *pat, const Char *patend, int m_not) 699 { 700 int ok, negate_range; 701 Char c; 702 703 while (pat < patend) { 704 size_t lwk; 705 __Char wc, wk; 706 707 c = *pat; /* Only for M_MASK bits */ 708 pat += One_Char_mbtowc(&wc, pat, MB_LEN_MAX); 709 lwk = one_mbtowc(&wk, name, MB_LEN_MAX); 710 switch (c & M_MASK) { 711 case M_ALL: 712 while (pat < patend && (*pat & M_MASK) == M_ALL) /* eat consecutive '*' */ 713 pat += One_Char_mbtowc(&wc, pat, MB_LEN_MAX); 714 if (pat == patend) 715 return (1); 716 while (!match(name, pat, patend, m_not)) { 717 if (*name == EOS) 718 return (0); 719 name += lwk; 720 lwk = one_mbtowc(&wk, name, MB_LEN_MAX); 721 } 722 return (1); 723 case M_ONE: 724 if (*name == EOS) 725 return (0); 726 name += lwk; 727 break; 728 case M_SET: 729 ok = 0; 730 if (*name == EOS) 731 return (0); 732 name += lwk; 733 if ((negate_range = ((*pat & M_MASK) == m_not)) != 0) 734 ++pat; 735 while ((*pat & M_MASK) != M_END) { 736 pat += One_Char_mbtowc(&wc, pat, MB_LEN_MAX); 737 if ((*pat & M_MASK) == M_RNG) { 738 __Char wc2; 739 740 pat++; 741 pat += One_Char_mbtowc(&wc2, pat, MB_LEN_MAX); 742 if (globcharcoll(wc, wk, 0) <= 0 && 743 globcharcoll(wk, wc2, 0) <= 0) 744 ok = 1; 745 } else if (wc == wk) 746 ok = 1; 747 } 748 pat += One_Char_mbtowc(&wc, pat, MB_LEN_MAX); 749 if (ok == negate_range) 750 return (0); 751 break; 752 default: 753 if (*name == EOS || samecase(wk) != samecase(wc)) 754 return (0); 755 name += lwk; 756 break; 757 } 758 } 759 return (*name == EOS); 760 } 761 762 /* free allocated data belonging to a glob_t structure */ 763 void 764 globfree(glob_t *pglob) 765 { 766 int i; 767 char **pp; 768 769 if (pglob->gl_pathv != NULL) { 770 pp = pglob->gl_pathv + pglob->gl_offs; 771 for (i = pglob->gl_pathc; i--; ++pp) 772 if (*pp) 773 xfree(*pp), *pp = NULL; 774 xfree(pglob->gl_pathv), pglob->gl_pathv = NULL; 775 } 776 } 777