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 if (*src == QUOTE) { 437 if (*++src == EOS) 438 --src; 439 } 440 *dest++ = *src++; 441 } 442 *dest = EOS; 443 globextend(copy, pglob); 444 xfree(copy); 445 } 446 xfree(patbuf); 447 return 0; 448 } 449 else if (!(flags & GLOB_NOSORT) && (pglob->gl_pathc != oldpathc)) 450 qsort(pglob->gl_pathv + pglob->gl_offs + oldpathc, 451 pglob->gl_pathc - oldpathc, sizeof(char *), compare); 452 xfree(patbuf); 453 return (0); 454 } 455 456 static int 457 glob1(Char *pattern, glob_t *pglob, int no_match) 458 { 459 struct strbuf pathbuf = strbuf_INIT; 460 int err; 461 462 /* 463 * a null pathname is invalid -- POSIX 1003.1 sect. 2.4. 464 */ 465 if (*pattern == EOS) 466 return (0); 467 err = glob2(&pathbuf, pattern, pglob, no_match); 468 xfree(pathbuf.s); 469 return err; 470 } 471 472 /* 473 * functions glob2 and glob3 are mutually recursive; there is one level 474 * of recursion for each segment in the pattern that contains one or 475 * more meta characters. 476 */ 477 static int 478 glob2(struct strbuf *pathbuf, const Char *pattern, glob_t *pglob, int no_match) 479 { 480 struct stat sbuf; 481 int anymeta; 482 const Char *p; 483 size_t orig_len; 484 485 /* 486 * loop over pattern segments until end of pattern or until segment with 487 * meta character found. 488 */ 489 anymeta = 0; 490 for (;;) { 491 if (*pattern == EOS) { /* end of pattern? */ 492 strbuf_terminate(pathbuf); 493 494 if (Lstat(pathbuf->s, &sbuf)) 495 return (0); 496 497 if (((pglob->gl_flags & GLOB_MARK) && 498 pathbuf->s[pathbuf->len - 1] != SEP) && 499 (S_ISDIR(sbuf.st_mode) 500 #ifdef S_IFLNK 501 || (S_ISLNK(sbuf.st_mode) && 502 (Stat(pathbuf->s, &sbuf) == 0) && 503 S_ISDIR(sbuf.st_mode)) 504 #endif 505 )) { 506 strbuf_append1(pathbuf, SEP); 507 strbuf_terminate(pathbuf); 508 } 509 ++pglob->gl_matchc; 510 globextend(pathbuf->s, pglob); 511 return 0; 512 } 513 514 /* find end of next segment, tentatively copy to pathbuf */ 515 p = pattern; 516 orig_len = pathbuf->len; 517 while (*p != EOS && *p != SEP) { 518 if (ismeta(*p)) 519 anymeta = 1; 520 strbuf_append1(pathbuf, *p++); 521 } 522 523 if (!anymeta) { /* no expansion, do next segment */ 524 pattern = p; 525 while (*pattern == SEP) 526 strbuf_append1(pathbuf, *pattern++); 527 } 528 else { /* need expansion, recurse */ 529 pathbuf->len = orig_len; 530 return (glob3(pathbuf, pattern, p, pattern, pglob, no_match)); 531 } 532 } 533 /* NOTREACHED */ 534 } 535 536 static size_t 537 One_Char_mbtowc(__Char *pwc, const Char *s, size_t n) 538 { 539 #ifdef WIDE_STRINGS 540 char buf[MB_LEN_MAX], *p; 541 542 if (n > MB_LEN_MAX) 543 n = MB_LEN_MAX; 544 p = buf; 545 while (p < buf + n && (*p++ = LCHAR(*s++)) != 0) 546 ; 547 return one_mbtowc(pwc, buf, n); 548 #else 549 *pwc = *s & CHAR; 550 return 1; 551 #endif 552 } 553 554 static int 555 glob3(struct strbuf *pathbuf, const Char *pattern, const Char *restpattern, 556 const Char *pglobstar, glob_t *pglob, int no_match) 557 { 558 DIR *dirp; 559 struct dirent *dp; 560 struct stat sbuf; 561 int err; 562 Char m_not = (pglob->gl_flags & GLOB_ALTNOT) ? M_ALTNOT : M_NOT; 563 size_t orig_len; 564 int globstar = 0; 565 int chase_symlinks = 0; 566 const Char *termstar = NULL; 567 568 strbuf_terminate(pathbuf); 569 orig_len = pathbuf->len; 570 errno = err = 0; 571 572 while (pglobstar < restpattern) { 573 __Char wc; 574 size_t width = One_Char_mbtowc(&wc, pglobstar, MB_LEN_MAX); 575 if ((pglobstar[0] & M_MASK) == M_ALL && 576 (pglobstar[width] & M_MASK) == M_ALL) { 577 globstar = 1; 578 chase_symlinks = (pglobstar[2 * width] & M_MASK) == M_ALL; 579 termstar = pglobstar + (2 + chase_symlinks) * width; 580 break; 581 } 582 pglobstar += width; 583 } 584 585 if (globstar) { 586 err = pglobstar==pattern && termstar==restpattern ? 587 *restpattern == EOS ? 588 glob2(pathbuf, restpattern - 1, pglob, no_match) : 589 glob2(pathbuf, restpattern + 1, pglob, no_match) : 590 glob3(pathbuf, pattern, restpattern, termstar, pglob, no_match); 591 if (err) 592 return err; 593 pathbuf->len = orig_len; 594 strbuf_terminate(pathbuf); 595 } 596 597 if (*pathbuf->s && (Lstat(pathbuf->s, &sbuf) || !S_ISDIR(sbuf.st_mode) 598 #ifdef S_IFLINK 599 && ((globstar && !chase_symlinks) || !S_ISLNK(sbuf.st_mode)) 600 #endif 601 )) 602 return 0; 603 604 if (!(dirp = Opendir(pathbuf->s))) { 605 /* todo: don't call for ENOENT or ENOTDIR? */ 606 if ((pglob->gl_errfunc && (*pglob->gl_errfunc) (pathbuf->s, errno)) || 607 (pglob->gl_flags & GLOB_ERR)) 608 return (GLOB_ABEND); 609 else 610 return (0); 611 } 612 613 /* search directory for matching names */ 614 while ((dp = readdir(dirp)) != NULL) { 615 /* initial DOT must be matched literally */ 616 if (dp->d_name[0] == DOT && *pattern != DOT) 617 if (!(pglob->gl_flags & GLOB_DOT) || !dp->d_name[1] || 618 (dp->d_name[1] == DOT && !dp->d_name[2])) 619 continue; /*unless globdot and not . or .. */ 620 pathbuf->len = orig_len; 621 strbuf_append(pathbuf, dp->d_name); 622 strbuf_terminate(pathbuf); 623 624 if (globstar) { 625 #ifdef S_IFLNK 626 if (!chase_symlinks && 627 (Lstat(pathbuf->s, &sbuf) || S_ISLNK(sbuf.st_mode))) 628 continue; 629 #endif 630 if (match(pathbuf->s + orig_len, pattern, termstar, 631 (int)m_not) == no_match) 632 continue; 633 strbuf_append1(pathbuf, SEP); 634 strbuf_terminate(pathbuf); 635 if ((err = glob2(pathbuf, pglobstar, pglob, no_match)) != 0) 636 break; 637 } else { 638 if (match(pathbuf->s + orig_len, pattern, restpattern, 639 (int) m_not) == no_match) 640 continue; 641 if ((err = glob2(pathbuf, restpattern, pglob, no_match)) != 0) 642 break; 643 } 644 } 645 /* todo: check error from readdir? */ 646 closedir(dirp); 647 return (err); 648 } 649 650 651 /* 652 * Extend the gl_pathv member of a glob_t structure to accomodate a new item, 653 * add the new item, and update gl_pathc. 654 * 655 * This assumes the BSD realloc, which only copies the block when its size 656 * crosses a power-of-two boundary; for v7 realloc, this would cause quadratic 657 * behavior. 658 * 659 * Return 0 if new item added, error code if memory couldn't be allocated. 660 * 661 * Invariant of the glob_t structure: 662 * Either gl_pathc is zero and gl_pathv is NULL; or gl_pathc > 0 and 663 * gl_pathv points to (gl_offs + gl_pathc + 1) items. 664 */ 665 static void 666 globextend(const char *path, glob_t *pglob) 667 { 668 char **pathv; 669 int i; 670 size_t newsize; 671 672 newsize = sizeof(*pathv) * (2 + pglob->gl_pathc + pglob->gl_offs); 673 pathv = xrealloc(pglob->gl_pathv, newsize); 674 675 if (pglob->gl_pathv == NULL && pglob->gl_offs > 0) { 676 /* first time around -- clear initial gl_offs items */ 677 pathv += pglob->gl_offs; 678 for (i = pglob->gl_offs; --i >= 0;) 679 *--pathv = NULL; 680 } 681 pglob->gl_pathv = pathv; 682 683 pathv[pglob->gl_offs + pglob->gl_pathc++] = strsave(path); 684 pathv[pglob->gl_offs + pglob->gl_pathc] = NULL; 685 } 686 687 /* 688 * pattern matching function for filenames. Each occurrence of the * 689 * pattern causes a recursion level. 690 */ 691 static int 692 match(const char *name, const Char *pat, const Char *patend, int m_not) 693 { 694 int ok, negate_range; 695 Char c; 696 697 while (pat < patend) { 698 size_t lwk; 699 __Char wc, wk; 700 701 c = *pat; /* Only for M_MASK bits */ 702 pat += One_Char_mbtowc(&wc, pat, MB_LEN_MAX); 703 lwk = one_mbtowc(&wk, name, MB_LEN_MAX); 704 switch (c & M_MASK) { 705 case M_ALL: 706 while (pat < patend && (*pat & M_MASK) == M_ALL) /* eat consecutive '*' */ 707 pat += One_Char_mbtowc(&wc, pat, MB_LEN_MAX); 708 if (pat == patend) 709 return (1); 710 while (!match(name, pat, patend, m_not)) { 711 if (*name == EOS) 712 return (0); 713 name += lwk; 714 lwk = one_mbtowc(&wk, name, MB_LEN_MAX); 715 } 716 return (1); 717 case M_ONE: 718 if (*name == EOS) 719 return (0); 720 name += lwk; 721 break; 722 case M_SET: 723 ok = 0; 724 if (*name == EOS) 725 return (0); 726 name += lwk; 727 if ((negate_range = ((*pat & M_MASK) == m_not)) != 0) 728 ++pat; 729 while ((*pat & M_MASK) != M_END) { 730 pat += One_Char_mbtowc(&wc, pat, MB_LEN_MAX); 731 if ((*pat & M_MASK) == M_RNG) { 732 __Char wc2; 733 734 pat++; 735 pat += One_Char_mbtowc(&wc2, pat, MB_LEN_MAX); 736 if (globcharcoll(wc, wk, 0) <= 0 && 737 globcharcoll(wk, wc2, 0) <= 0) 738 ok = 1; 739 } else if (wc == wk) 740 ok = 1; 741 } 742 pat += One_Char_mbtowc(&wc, pat, MB_LEN_MAX); 743 if (ok == negate_range) 744 return (0); 745 break; 746 default: 747 if (*name == EOS || samecase(wk) != samecase(wc)) 748 return (0); 749 name += lwk; 750 break; 751 } 752 } 753 return (*name == EOS); 754 } 755 756 /* free allocated data belonging to a glob_t structure */ 757 void 758 globfree(glob_t *pglob) 759 { 760 int i; 761 char **pp; 762 763 if (pglob->gl_pathv != NULL) { 764 pp = pglob->gl_pathv + pglob->gl_offs; 765 for (i = pglob->gl_pathc; i--; ++pp) 766 if (*pp) 767 xfree(*pp), *pp = NULL; 768 xfree(pglob->gl_pathv), pglob->gl_pathv = NULL; 769 } 770 } 771