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 /* This should not be here, but I'll rather leave it in than engage in 146 a LC_COLLATE flamewar about a shell I don't use... */ 147 if (iswlower(c1) && iswupper(c2)) 148 return (1); 149 if (iswupper(c1) && iswlower(c2)) 150 return (-1); 151 } 152 s1[0] = c1; 153 s2[0] = c2; 154 s1[1] = s2[1] = '\0'; 155 return wcscoll(s1, s2); 156 # else /* not WIDE_STRINGS */ 157 char s1[2], s2[2]; 158 159 if (c1 == c2) 160 return (0); 161 /* 162 * From kevin lyda <kevin@suberic.net>: 163 * strcoll does not guarantee case sorting, so we pre-process now: 164 */ 165 if (cs) { 166 c1 = islower(c1) ? c1 : tolower(c1); 167 c2 = islower(c2) ? c2 : tolower(c2); 168 } else { 169 if (islower(c1) && isupper(c2)) 170 return (1); 171 if (isupper(c1) && islower(c2)) 172 return (-1); 173 } 174 s1[0] = c1; 175 s2[0] = c2; 176 s1[1] = s2[1] = '\0'; 177 return strcoll(s1, s2); 178 # endif 179 #else 180 return (c1 - c2); 181 #endif 182 } 183 184 /* 185 * Need to dodge two kernel bugs: 186 * opendir("") != opendir(".") 187 * NAMEI_BUG: on plain files trailing slashes are ignored in some kernels. 188 * POSIX specifies that they should be ignored in directories. 189 */ 190 191 static DIR * 192 Opendir(const char *str) 193 { 194 #if defined(hpux) || defined(__hpux) 195 struct stat st; 196 #endif 197 198 if (!*str) 199 return (opendir(".")); 200 #if defined(hpux) || defined(__hpux) 201 /* 202 * Opendir on some device files hangs, so avoid it 203 */ 204 if (stat(str, &st) == -1 || !S_ISDIR(st.st_mode)) 205 return NULL; 206 #endif 207 return opendir(str); 208 } 209 210 #ifdef S_IFLNK 211 static int 212 Lstat(const char *fn, struct stat *sb) 213 { 214 int st; 215 216 st = lstat(fn, sb); 217 # ifdef NAMEI_BUG 218 if (*fn != 0 && strend(fn)[-1] == '/' && !S_ISDIR(sb->st_mode)) 219 st = -1; 220 # endif /* NAMEI_BUG */ 221 return st; 222 } 223 #else 224 #define Lstat Stat 225 #endif /* S_IFLNK */ 226 227 static int 228 Stat(const char *fn, struct stat *sb) 229 { 230 int st; 231 232 st = stat(fn, sb); 233 #ifdef NAMEI_BUG 234 if (*fn != 0 && strend(fn)[-1] == '/' && !S_ISDIR(sb->st_mode)) 235 st = -1; 236 #endif /* NAMEI_BUG */ 237 return st; 238 } 239 240 static Char * 241 Strchr(Char *str, int ch) 242 { 243 do 244 if (*str == ch) 245 return (str); 246 while (*str++); 247 return (NULL); 248 } 249 250 #ifdef DEBUG 251 static void 252 qprintf(const Char *s) 253 { 254 const Char *p; 255 256 for (p = s; *p; p++) 257 printf("%c", *p & 0xff); 258 printf("\n"); 259 for (p = s; *p; p++) 260 printf("%c", *p & M_PROTECT ? '"' : ' '); 261 printf("\n"); 262 for (p = s; *p; p++) 263 printf("%c", *p & M_META ? '_' : ' '); 264 printf("\n"); 265 } 266 #endif /* DEBUG */ 267 268 static int 269 compare(const void *p, const void *q) 270 { 271 #if defined(NLS) && defined(HAVE_STRCOLL) 272 return (strcoll(*(char *const *) p, *(char *const *) q)); 273 #else 274 return (strcmp(*(char *const *) p, *(char *const *) q)); 275 #endif /* NLS && HAVE_STRCOLL */ 276 } 277 278 /* 279 * The main glob() routine: compiles the pattern (optionally processing 280 * quotes), calls glob1() to do the real pattern matching, and finally 281 * sorts the list (unless unsorted operation is requested). Returns 0 282 * if things went well, nonzero if errors occurred. It is not an error 283 * to find no matches. 284 */ 285 int 286 glob(const char *pattern, int flags, int (*errfunc) (const char *, int), 287 glob_t *pglob) 288 { 289 int err, oldpathc; 290 Char *bufnext, m_not; 291 const unsigned char *patnext; 292 int c, not; 293 Char *qpatnext, *patbuf; 294 int no_match; 295 296 patnext = (const unsigned char *) pattern; 297 if (!(flags & GLOB_APPEND)) { 298 pglob->gl_pathc = 0; 299 pglob->gl_pathv = NULL; 300 if (!(flags & GLOB_DOOFFS)) 301 pglob->gl_offs = 0; 302 } 303 pglob->gl_flags = flags & ~GLOB_MAGCHAR; 304 pglob->gl_errfunc = errfunc; 305 oldpathc = pglob->gl_pathc; 306 pglob->gl_matchc = 0; 307 308 if (pglob->gl_flags & GLOB_ALTNOT) { 309 not = ALTNOT; 310 m_not = M_ALTNOT; 311 } 312 else { 313 not = NOT; 314 m_not = M_NOT; 315 } 316 317 patbuf = xmalloc((strlen(pattern) + 1) * sizeof(*patbuf)); 318 bufnext = patbuf; 319 320 no_match = *patnext == not; 321 if (no_match) 322 patnext++; 323 324 if (flags & GLOB_QUOTE) { 325 /* Protect the quoted characters */ 326 while ((c = *patnext++) != EOS) { 327 #ifdef WIDE_STRINGS 328 int len; 329 330 len = mblen((const char *)(patnext - 1), MB_LEN_MAX); 331 if (len == -1) 332 TCSH_IGNORE(mblen(NULL, 0)); 333 else if (len > 1) { 334 *bufnext++ = (Char) c; 335 while (--len != 0) 336 *bufnext++ = (Char) (*patnext++ | M_PROTECT); 337 } else 338 #endif /* WIDE_STRINGS */ 339 if (c == QUOTE) { 340 if ((c = *patnext++) == EOS) { 341 c = QUOTE; 342 --patnext; 343 } 344 *bufnext++ = (Char) (c | M_PROTECT); 345 } 346 else 347 *bufnext++ = (Char) c; 348 } 349 } 350 else 351 while ((c = *patnext++) != EOS) 352 *bufnext++ = (Char) c; 353 *bufnext = EOS; 354 355 bufnext = patbuf; 356 qpatnext = patbuf; 357 while ((c = *qpatnext++) != EOS) { 358 switch (c) { 359 case LBRACKET: 360 c = *qpatnext; 361 if (c == not) 362 ++qpatnext; 363 if (*qpatnext == EOS || 364 Strchr(qpatnext + 1, RBRACKET) == NULL) { 365 *bufnext++ = LBRACKET; 366 if (c == not) 367 --qpatnext; 368 break; 369 } 370 pglob->gl_flags |= GLOB_MAGCHAR; 371 *bufnext++ = M_SET; 372 if (c == not) 373 *bufnext++ = m_not; 374 c = *qpatnext++; 375 do { 376 *bufnext++ = LCHAR(c); 377 if (*qpatnext == RANGE && 378 (c = qpatnext[1]) != RBRACKET) { 379 *bufnext++ = M_RNG; 380 *bufnext++ = LCHAR(c); 381 qpatnext += 2; 382 } 383 } while ((c = *qpatnext++) != RBRACKET); 384 *bufnext++ = M_END; 385 break; 386 case QUESTION: 387 pglob->gl_flags |= GLOB_MAGCHAR; 388 *bufnext++ = M_ONE; 389 break; 390 case STAR: 391 pglob->gl_flags |= GLOB_MAGCHAR; 392 /* collapse adjacent stars to one [or three if globstar], 393 * to avoid exponential behavior 394 */ 395 if (bufnext == patbuf || bufnext[-1] != M_ALL || 396 ((flags & GLOB_STAR) != 0 && 397 (bufnext - 1 == patbuf || bufnext[-2] != M_ALL || 398 bufnext - 2 == patbuf || bufnext[-3] != M_ALL))) 399 *bufnext++ = M_ALL; 400 break; 401 default: 402 *bufnext++ = LCHAR(c); 403 break; 404 } 405 } 406 *bufnext = EOS; 407 #ifdef DEBUG 408 qprintf(patbuf); 409 #endif 410 411 if ((err = glob1(patbuf, pglob, no_match)) != 0) { 412 xfree(patbuf); 413 return (err); 414 } 415 416 /* 417 * If there was no match we are going to append the pattern 418 * if GLOB_NOCHECK was specified or if GLOB_NOMAGIC was specified 419 * and the pattern did not contain any magic characters 420 * GLOB_NOMAGIC is there just for compatibility with csh. 421 */ 422 if (pglob->gl_pathc == oldpathc && 423 ((flags & GLOB_NOCHECK) || 424 ((flags & GLOB_NOMAGIC) && !(pglob->gl_flags & GLOB_MAGCHAR)))) { 425 if (!(flags & GLOB_QUOTE)) 426 globextend(pattern, pglob); 427 else { 428 char *copy, *dest; 429 const char *src; 430 431 /* copy pattern, interpreting quotes */ 432 copy = xmalloc(strlen(pattern) + 1); 433 dest = copy; 434 src = pattern; 435 while (*src != EOS) { 436 /* Don't interpret quotes. The spec does not say we should do */ 437 if (*src == QUOTE) { 438 if (*++src == EOS) 439 --src; 440 } 441 *dest++ = *src++; 442 } 443 *dest = EOS; 444 globextend(copy, pglob); 445 xfree(copy); 446 } 447 xfree(patbuf); 448 return 0; 449 } 450 else if (!(flags & GLOB_NOSORT) && (pglob->gl_pathc != oldpathc)) 451 qsort(pglob->gl_pathv + pglob->gl_offs + oldpathc, 452 pglob->gl_pathc - oldpathc, sizeof(char *), compare); 453 xfree(patbuf); 454 return (0); 455 } 456 457 static int 458 glob1(Char *pattern, glob_t *pglob, int no_match) 459 { 460 struct strbuf pathbuf = strbuf_INIT; 461 int err; 462 463 /* 464 * a null pathname is invalid -- POSIX 1003.1 sect. 2.4. 465 */ 466 if (*pattern == EOS) 467 return (0); 468 err = glob2(&pathbuf, pattern, pglob, no_match); 469 xfree(pathbuf.s); 470 return err; 471 } 472 473 /* 474 * functions glob2 and glob3 are mutually recursive; there is one level 475 * of recursion for each segment in the pattern that contains one or 476 * more meta characters. 477 */ 478 static int 479 glob2(struct strbuf *pathbuf, const Char *pattern, glob_t *pglob, int no_match) 480 { 481 struct stat sbuf; 482 int anymeta; 483 const Char *p; 484 size_t orig_len; 485 486 /* 487 * loop over pattern segments until end of pattern or until segment with 488 * meta character found. 489 */ 490 anymeta = 0; 491 for (;;) { 492 if (*pattern == EOS) { /* end of pattern? */ 493 strbuf_terminate(pathbuf); 494 495 if (Lstat(pathbuf->s, &sbuf)) 496 return (0); 497 498 if (((pglob->gl_flags & GLOB_MARK) && 499 pathbuf->s[pathbuf->len - 1] != SEP) && 500 (S_ISDIR(sbuf.st_mode) 501 #ifdef S_IFLNK 502 || (S_ISLNK(sbuf.st_mode) && 503 (Stat(pathbuf->s, &sbuf) == 0) && 504 S_ISDIR(sbuf.st_mode)) 505 #endif 506 )) { 507 strbuf_append1(pathbuf, SEP); 508 strbuf_terminate(pathbuf); 509 } 510 ++pglob->gl_matchc; 511 globextend(pathbuf->s, pglob); 512 return 0; 513 } 514 515 /* find end of next segment, tentatively copy to pathbuf */ 516 p = pattern; 517 orig_len = pathbuf->len; 518 while (*p != EOS && *p != SEP) { 519 if (ismeta(*p)) 520 anymeta = 1; 521 strbuf_append1(pathbuf, *p++); 522 } 523 524 if (!anymeta) { /* no expansion, do next segment */ 525 pattern = p; 526 while (*pattern == SEP) 527 strbuf_append1(pathbuf, *pattern++); 528 } 529 else { /* need expansion, recurse */ 530 pathbuf->len = orig_len; 531 return (glob3(pathbuf, pattern, p, pattern, pglob, no_match)); 532 } 533 } 534 /* NOTREACHED */ 535 } 536 537 static size_t 538 One_Char_mbtowc(__Char *pwc, const Char *s, size_t n) 539 { 540 #ifdef WIDE_STRINGS 541 char buf[MB_LEN_MAX], *p; 542 543 if (n > MB_LEN_MAX) 544 n = MB_LEN_MAX; 545 p = buf; 546 while (p < buf + n && (*p++ = LCHAR(*s++)) != 0) 547 ; 548 return one_mbtowc(pwc, buf, n); 549 #else 550 *pwc = *s & CHAR; 551 return 1; 552 #endif 553 } 554 555 static int 556 glob3(struct strbuf *pathbuf, const Char *pattern, const Char *restpattern, 557 const Char *pglobstar, glob_t *pglob, int no_match) 558 { 559 DIR *dirp; 560 struct dirent *dp; 561 struct stat sbuf; 562 int err; 563 Char m_not = (pglob->gl_flags & GLOB_ALTNOT) ? M_ALTNOT : M_NOT; 564 size_t orig_len; 565 int globstar = 0; 566 int chase_symlinks = 0; 567 const Char *termstar = NULL; 568 569 strbuf_terminate(pathbuf); 570 orig_len = pathbuf->len; 571 errno = err = 0; 572 573 while (pglobstar < restpattern) { 574 __Char wc; 575 size_t width = One_Char_mbtowc(&wc, pglobstar, MB_LEN_MAX); 576 if ((pglobstar[0] & M_MASK) == M_ALL && 577 (pglobstar[width] & M_MASK) == M_ALL) { 578 globstar = 1; 579 chase_symlinks = (pglobstar[2 * width] & M_MASK) == M_ALL; 580 termstar = pglobstar + (2 + chase_symlinks) * width; 581 break; 582 } 583 pglobstar += width; 584 } 585 586 if (globstar) { 587 err = pglobstar==pattern && termstar==restpattern ? 588 *restpattern == EOS ? 589 glob2(pathbuf, restpattern - 1, pglob, no_match) : 590 glob2(pathbuf, restpattern + 1, pglob, no_match) : 591 glob3(pathbuf, pattern, restpattern, termstar, pglob, no_match); 592 if (err) 593 return err; 594 pathbuf->len = orig_len; 595 strbuf_terminate(pathbuf); 596 } 597 598 if (*pathbuf->s && (Lstat(pathbuf->s, &sbuf) || !S_ISDIR(sbuf.st_mode) 599 #ifdef S_IFLINK 600 && ((globstar && !chase_symlinks) || !S_ISLNK(sbuf.st_mode)) 601 #endif 602 )) 603 return 0; 604 605 if (!(dirp = Opendir(pathbuf->s))) { 606 /* todo: don't call for ENOENT or ENOTDIR? */ 607 if ((pglob->gl_errfunc && (*pglob->gl_errfunc) (pathbuf->s, errno)) || 608 (pglob->gl_flags & GLOB_ERR)) 609 return (GLOB_ABEND); 610 else 611 return (0); 612 } 613 614 /* search directory for matching names */ 615 while ((dp = readdir(dirp)) != NULL) { 616 /* initial DOT must be matched literally */ 617 if (dp->d_name[0] == DOT && *pattern != DOT) 618 if (!(pglob->gl_flags & GLOB_DOT) || !dp->d_name[1] || 619 (dp->d_name[1] == DOT && !dp->d_name[2])) 620 continue; /*unless globdot and not . or .. */ 621 pathbuf->len = orig_len; 622 strbuf_append(pathbuf, dp->d_name); 623 strbuf_terminate(pathbuf); 624 625 if (globstar) { 626 #ifdef S_IFLNK 627 if (!chase_symlinks && 628 (Lstat(pathbuf->s, &sbuf) || S_ISLNK(sbuf.st_mode))) 629 continue; 630 #endif 631 if (match(pathbuf->s + orig_len, pattern, termstar, 632 (int)m_not) == no_match) 633 continue; 634 strbuf_append1(pathbuf, SEP); 635 strbuf_terminate(pathbuf); 636 if ((err = glob2(pathbuf, pglobstar, pglob, no_match)) != 0) 637 break; 638 } else { 639 if (match(pathbuf->s + orig_len, pattern, restpattern, 640 (int) m_not) == no_match) 641 continue; 642 if ((err = glob2(pathbuf, restpattern, pglob, no_match)) != 0) 643 break; 644 } 645 } 646 /* todo: check error from readdir? */ 647 closedir(dirp); 648 return (err); 649 } 650 651 652 /* 653 * Extend the gl_pathv member of a glob_t structure to accomodate a new item, 654 * add the new item, and update gl_pathc. 655 * 656 * This assumes the BSD realloc, which only copies the block when its size 657 * crosses a power-of-two boundary; for v7 realloc, this would cause quadratic 658 * behavior. 659 * 660 * Return 0 if new item added, error code if memory couldn't be allocated. 661 * 662 * Invariant of the glob_t structure: 663 * Either gl_pathc is zero and gl_pathv is NULL; or gl_pathc > 0 and 664 * gl_pathv points to (gl_offs + gl_pathc + 1) items. 665 */ 666 static void 667 globextend(const char *path, glob_t *pglob) 668 { 669 char **pathv; 670 int i; 671 size_t newsize; 672 673 newsize = sizeof(*pathv) * (2 + pglob->gl_pathc + pglob->gl_offs); 674 pathv = xrealloc(pglob->gl_pathv, newsize); 675 676 if (pglob->gl_pathv == NULL && pglob->gl_offs > 0) { 677 /* first time around -- clear initial gl_offs items */ 678 pathv += pglob->gl_offs; 679 for (i = pglob->gl_offs; --i >= 0;) 680 *--pathv = NULL; 681 } 682 pglob->gl_pathv = pathv; 683 684 pathv[pglob->gl_offs + pglob->gl_pathc++] = strsave(path); 685 pathv[pglob->gl_offs + pglob->gl_pathc] = NULL; 686 } 687 688 /* 689 * pattern matching function for filenames. Each occurrence of the * 690 * pattern causes a recursion level. 691 */ 692 static int 693 match(const char *name, const Char *pat, const Char *patend, int m_not) 694 { 695 int ok, negate_range; 696 Char c; 697 698 while (pat < patend) { 699 size_t lwk; 700 __Char wc, wk; 701 702 c = *pat; /* Only for M_MASK bits */ 703 pat += One_Char_mbtowc(&wc, pat, MB_LEN_MAX); 704 lwk = one_mbtowc(&wk, name, MB_LEN_MAX); 705 switch (c & M_MASK) { 706 case M_ALL: 707 while (pat < patend && (*pat & M_MASK) == M_ALL) /* eat consecutive '*' */ 708 pat += One_Char_mbtowc(&wc, pat, MB_LEN_MAX); 709 if (pat == patend) 710 return (1); 711 while (!match(name, pat, patend, m_not)) { 712 if (*name == EOS) 713 return (0); 714 name += lwk; 715 lwk = one_mbtowc(&wk, name, MB_LEN_MAX); 716 } 717 return (1); 718 case M_ONE: 719 if (*name == EOS) 720 return (0); 721 name += lwk; 722 break; 723 case M_SET: 724 ok = 0; 725 if (*name == EOS) 726 return (0); 727 name += lwk; 728 if ((negate_range = ((*pat & M_MASK) == m_not)) != 0) 729 ++pat; 730 while ((*pat & M_MASK) != M_END) { 731 pat += One_Char_mbtowc(&wc, pat, MB_LEN_MAX); 732 if ((*pat & M_MASK) == M_RNG) { 733 __Char wc2; 734 735 pat++; 736 pat += One_Char_mbtowc(&wc2, pat, MB_LEN_MAX); 737 if (globcharcoll(wc, wk, 0) <= 0 && 738 globcharcoll(wk, wc2, 0) <= 0) 739 ok = 1; 740 } else if (wc == wk) 741 ok = 1; 742 } 743 pat += One_Char_mbtowc(&wc, pat, MB_LEN_MAX); 744 if (ok == negate_range) 745 return (0); 746 break; 747 default: 748 if (*name == EOS || samecase(wk) != samecase(wc)) 749 return (0); 750 name += lwk; 751 break; 752 } 753 } 754 return (*name == EOS); 755 } 756 757 /* free allocated data belonging to a glob_t structure */ 758 void 759 globfree(glob_t *pglob) 760 { 761 int i; 762 char **pp; 763 764 if (pglob->gl_pathv != NULL) { 765 pp = pglob->gl_pathv + pglob->gl_offs; 766 for (i = pglob->gl_pathc; i--; ++pp) 767 if (*pp) 768 xfree(*pp), *pp = NULL; 769 xfree(pglob->gl_pathv), pglob->gl_pathv = NULL; 770 } 771 } 772