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1097 glob(3c) needs to support non-POSIX options
3341 The sftp command should use the native glob()
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--- old/usr/src/lib/libc/port/regex/glob.c
+++ new/usr/src/lib/libc/port/regex/glob.c
1 1 /*
2 - * CDDL HEADER START
3 - *
4 - * The contents of this file are subject to the terms of the
5 - * Common Development and Distribution License (the "License").
6 - * You may not use this file except in compliance with the License.
7 - *
8 - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 - * or http://www.opensolaris.org/os/licensing.
10 - * See the License for the specific language governing permissions
11 - * and limitations under the License.
12 - *
13 - * When distributing Covered Code, include this CDDL HEADER in each
14 - * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 - * If applicable, add the following below this CDDL HEADER, with the
16 - * fields enclosed by brackets "[]" replaced with your own identifying
17 - * information: Portions Copyright [yyyy] [name of copyright owner]
18 - *
19 - * CDDL HEADER END
2 + * Copyright (c) 2012 Gary Mills
20 3 */
21 -
4 +/* $OpenBSD: glob.c,v 1.39 2012/01/20 07:09:42 tedu Exp $ */
22 5 /*
23 - * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24 - * Use is subject to license terms.
25 - */
26 -
27 -/*
28 - * This code is MKS code ported to Solaris originally with minimum
29 - * modifications so that upgrades from MKS would readily integrate.
30 - * The MKS basis for this modification was:
6 + * Copyright (c) 1989, 1993
7 + * The Regents of the University of California. All rights reserved.
31 8 *
32 - * $Id: glob.c 1.31 1994/04/07 22:50:43 mark
9 + * This code is derived from software contributed to Berkeley by
10 + * Guido van Rossum.
33 11 *
34 - * Additional modifications have been made to this code to make it
35 - * 64-bit clean.
12 + * Redistribution and use in source and binary forms, with or without
13 + * modification, are permitted provided that the following conditions
14 + * are met:
15 + * 1. Redistributions of source code must retain the above copyright
16 + * notice, this list of conditions and the following disclaimer.
17 + * 2. Redistributions in binary form must reproduce the above copyright
18 + * notice, this list of conditions and the following disclaimer in the
19 + * documentation and/or other materials provided with the distribution.
20 + * 3. Neither the name of the University nor the names of its contributors
21 + * may be used to endorse or promote products derived from this software
22 + * without specific prior written permission.
23 + *
24 + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 + * SUCH DAMAGE.
36 35 */
37 36
38 37 /*
39 - * glob, globfree -- POSIX.2 compatible file name expansion routines.
38 + * glob(3) -- a superset of the one defined in POSIX 1003.2.
40 39 *
41 - * Copyright 1985, 1991 by Mortice Kern Systems Inc. All rights reserved.
40 + * The [!...] convention to negate a range is supported (SysV, Posix, ksh).
42 41 *
43 - * Written by Eric Gisin.
42 + * Optional extra services, controlled by flags not defined by POSIX:
43 + *
44 + * GLOB_QUOTE:
45 + * Escaping convention: \ inhibits any special meaning the following
46 + * character might have (except \ at end of string is retained).
47 + * GLOB_MAGCHAR:
48 + * Set in gl_flags if pattern contained a globbing character.
49 + * GLOB_NOMAGIC:
50 + * Same as GLOB_NOCHECK, but it will only append pattern if it did
51 + * not contain any magic characters. [Used in csh style globbing]
52 + * GLOB_ALTDIRFUNC:
53 + * Use alternately specified directory access functions.
54 + * GLOB_TILDE:
55 + * expand ~user/foo to the /home/dir/of/user/foo
56 + * GLOB_BRACE:
57 + * expand {1,2}{a,b} to 1a 1b 2a 2b
58 + * gl_matchc:
59 + * Number of matches in the current invocation of glob.
44 60 */
45 61
46 -#pragma ident "%Z%%M% %I% %E% SMI"
62 +#include <sys/param.h>
63 +#include <sys/stat.h>
47 64
48 -#pragma weak _glob = glob
49 -#pragma weak _globfree = globfree
50 -
51 -#include "lint.h"
52 -#include <stdio.h>
53 -#include <unistd.h>
65 +#include <ctype.h>
66 +#include <dirent.h>
67 +#include <errno.h>
68 +#include <glob.h>
54 69 #include <limits.h>
70 +#include <pwd.h>
71 +#include <stdio.h>
55 72 #include <stdlib.h>
56 73 #include <string.h>
57 -#include <dirent.h>
58 -#include <sys/stat.h>
59 -#include <glob.h>
60 -#include <errno.h>
61 -#include <fnmatch.h>
74 +#include <unistd.h>
75 +#include <wchar.h>
76 +#include <wctype.h>
62 77
63 -#define GLOB__CHECK 0x80 /* stat generated paths */
78 +#define DOLLAR '$'
79 +#define DOT '.'
80 +#define EOS '\0'
81 +#define LBRACKET '['
82 +#define NOT '!'
83 +#define QUESTION '?'
84 +#define QUOTE '\\'
85 +#define RANGE '-'
86 +#define RBRACKET ']'
87 +#define SEP '/'
88 +#define STAR '*'
89 +#define TILDE '~'
90 +#define UNDERSCORE '_'
91 +#define LBRACE '{'
92 +#define RBRACE '}'
93 +#define SLASH '/'
94 +#define COMMA ','
95 +#define COLON ':'
64 96
65 -#define INITIAL 8 /* initial pathv allocation */
66 -#define NULLCPP ((char **)0) /* Null char ** */
67 -#define NAME_MAX 1024 /* something large */
97 +#define M_QUOTE 0x800000
98 +#define M_PROTECT 0x400000
68 99
69 -static int globit(size_t, const char *, glob_t *, int,
70 - int (*)(const char *, int), char **);
71 -static int pstrcmp(const void *, const void *);
72 -static int append(glob_t *, const char *);
100 +typedef struct wcat {
101 + wchar_t w_wc;
102 + uint_t w_at;
103 +} wcat_t;
73 104
105 +#define M_ALL '*' /* Plus M_QUOTE */
106 +#define M_END ']' /* Plus M_QUOTE */
107 +#define M_NOT '!' /* Plus M_QUOTE */
108 +#define M_ONE '?' /* Plus M_QUOTE */
109 +#define M_RNG '-' /* Plus M_QUOTE */
110 +#define M_SET '[' /* Plus M_QUOTE */
111 +#define M_CLASS ':' /* Plus M_QUOTE */
112 +#define ismeta(c) (((c).w_at&M_QUOTE) != 0)
113 +
114 +#define GLOB_LIMIT_MALLOC 65536
115 +#define GLOB_LIMIT_STAT 2048
116 +#define GLOB_LIMIT_READDIR 16384
117 +
118 +/* Limit of recursion during matching attempts. */
119 +#define GLOB_LIMIT_RECUR 64
120 +
121 +struct glob_lim {
122 + size_t glim_malloc;
123 + size_t glim_stat;
124 + size_t glim_readdir;
125 +};
126 +
127 +struct glob_path_stat {
128 + char *gps_path;
129 + struct stat *gps_stat;
130 +};
131 +
132 +static int compare(const void *, const void *);
133 +static int compare_gps(const void *, const void *);
134 +static int g_Ctoc(const wcat_t *, char *, uint_t);
135 +static int g_lstat(wcat_t *, struct stat *, glob_t *);
136 +static DIR *g_opendir(wcat_t *, glob_t *);
137 +static wcat_t *g_strchr(const wcat_t *, wchar_t);
138 +static int g_stat(wcat_t *, struct stat *, glob_t *);
139 +static int glob0(const wcat_t *, glob_t *, struct glob_lim *,
140 + int (*)(const char *, int));
141 +static int glob1(wcat_t *, wcat_t *, glob_t *, struct glob_lim *,
142 + int (*)(const char *, int));
143 +static int glob2(wcat_t *, wcat_t *, wcat_t *, wcat_t *, wcat_t *,
144 + wcat_t *, glob_t *, struct glob_lim *,
145 + int (*)(const char *, int));
146 +static int glob3(wcat_t *, wcat_t *, wcat_t *, wcat_t *, wcat_t *,
147 + wcat_t *, wcat_t *, glob_t *, struct glob_lim *,
148 + int (*)(const char *, int));
149 +static int globextend(const wcat_t *, glob_t *, struct glob_lim *,
150 + struct stat *);
151 +static
152 +const wcat_t *globtilde(const wcat_t *, wcat_t *, size_t, glob_t *);
153 +static int globexp1(const wcat_t *, glob_t *, struct glob_lim *,
154 + int (*)(const char *, int));
155 +static int globexp2(const wcat_t *, const wcat_t *, glob_t *,
156 + struct glob_lim *, int (*)(const char *, int));
157 +static int match(wcat_t *, wcat_t *, wcat_t *, int);
158 +#ifdef DEBUG
159 +static void qprintf(const char *, wcat_t *);
160 +#endif
161 +
162 +int
163 +glob(const char *pattern, int flags, int (*errfunc)(const char *, int),
164 + glob_t *pglob)
165 +{
166 + const char *patnext;
167 + size_t n;
168 + wchar_t c;
169 + wcat_t *bufnext, *bufend, patbuf[MAXPATHLEN];
170 + struct glob_lim limit = { 0, 0, 0 };
171 +
172 + if (strnlen(pattern, PATH_MAX) == PATH_MAX)
173 + return (GLOB_NOMATCH);
174 +
175 + patnext = pattern;
176 + if (!(flags & GLOB_APPEND)) {
177 + pglob->gl_pathc = 0;
178 + pglob->gl_pathv = NULL;
179 + if ((flags & GLOB_KEEPSTAT) != 0)
180 + pglob->gl_statv = NULL;
181 + if (!(flags & GLOB_DOOFFS))
182 + pglob->gl_offs = 0;
183 + }
184 + pglob->gl_flags = flags & ~GLOB_MAGCHAR;
185 + pglob->gl_matchc = 0;
186 +
187 + if (pglob->gl_offs < 0 || pglob->gl_pathc < 0 ||
188 + pglob->gl_offs >= INT_MAX || pglob->gl_pathc >= INT_MAX ||
189 + pglob->gl_pathc >= INT_MAX - pglob->gl_offs - 1)
190 + return (GLOB_NOSPACE);
191 +
192 + bufnext = patbuf;
193 + bufend = bufnext + MAXPATHLEN - 1;
194 + if (flags & GLOB_NOESCAPE) {
195 + while (bufnext < bufend) {
196 + if ((n = mbtowc(&c, patnext, MB_LEN_MAX)) > 0) {
197 + patnext += n;
198 + bufnext->w_at = 0;
199 + (bufnext++)->w_wc = c;
200 + } else if (n == 0) {
201 + break;
202 + } else {
203 + return (GLOB_NOMATCH);
204 + }
205 + }
206 + } else {
207 + /* Protect the quoted characters. */
208 + while (bufnext < bufend) {
209 + if ((n = mbtowc(&c, patnext, MB_LEN_MAX)) > 0) {
210 + patnext += n;
211 + if (c == QUOTE) {
212 + n = mbtowc(&c, patnext, MB_LEN_MAX);
213 + if (n < 0)
214 + return (GLOB_NOMATCH);
215 + if (n > 0)
216 + patnext += n;
217 + if (n == 0)
218 + c = QUOTE;
219 + bufnext->w_at = M_PROTECT;
220 + (bufnext++)->w_wc = c;
221 + } else {
222 + bufnext->w_at = 0;
223 + (bufnext++)->w_wc = c;
224 + }
225 + } else if (n == 0) {
226 + break;
227 + } else {
228 + return (GLOB_NOMATCH);
229 + }
230 + }
231 + }
232 + bufnext->w_at = 0;
233 + bufnext->w_wc = EOS;
234 +
235 + if (flags & GLOB_BRACE)
236 + return (globexp1(patbuf, pglob, &limit, errfunc));
237 + else
238 + return (glob0(patbuf, pglob, &limit, errfunc));
239 +}
240 +
74 241 /*
75 - * Free all space consumed by glob.
242 + * Expand recursively a glob {} pattern. When there is no more expansion
243 + * invoke the standard globbing routine to glob the rest of the magic
244 + * characters
76 245 */
77 -void
78 -globfree(glob_t *gp)
246 +static int
247 +globexp1(const wcat_t *pattern, glob_t *pglob, struct glob_lim *limitp,
248 + int (*errfunc)(const char *, int))
79 249 {
80 - size_t i;
250 + const wcat_t *ptr = pattern;
81 251
82 - if (gp->gl_pathv == 0)
83 - return;
252 + /* Protect a single {}, for find(1), like csh */
253 + if (pattern[0].w_wc == LBRACE && pattern[1].w_wc == RBRACE &&
254 + pattern[2].w_wc == EOS)
255 + return (glob0(pattern, pglob, limitp, errfunc));
84 256
85 - for (i = gp->gl_offs; i < gp->gl_offs + gp->gl_pathc; ++i)
86 - free(gp->gl_pathv[i]);
87 - free((void *)gp->gl_pathv);
257 + if ((ptr = (const wcat_t *) g_strchr(ptr, LBRACE)) != NULL)
258 + return (globexp2(ptr, pattern, pglob, limitp, errfunc));
88 259
89 - gp->gl_pathc = 0;
90 - gp->gl_pathv = NULLCPP;
260 + return (glob0(pattern, pglob, limitp, errfunc));
91 261 }
92 262
263 +
93 264 /*
94 - * Do filename expansion.
265 + * Recursive brace globbing helper. Tries to expand a single brace.
266 + * If it succeeds then it invokes globexp1 with the new pattern.
267 + * If it fails then it tries to glob the rest of the pattern and returns.
95 268 */
96 -int
97 -glob(const char *pattern, int flags,
98 - int (*errfn)(const char *, int), glob_t *gp)
269 +static int
270 +globexp2(const wcat_t *ptr, const wcat_t *pattern, glob_t *pglob,
271 + struct glob_lim *limitp, int (*errfunc)(const char *, int))
99 272 {
100 - int rv;
101 - size_t i;
102 - size_t ipathc;
103 - char *path;
273 + int i, rv;
274 + wcat_t *lm, *ls;
275 + const wcat_t *pe, *pm, *pl;
276 + wcat_t patbuf[MAXPATHLEN];
104 277
105 - if ((flags & GLOB_DOOFFS) == 0)
106 - gp->gl_offs = 0;
278 + /* copy part up to the brace */
279 + for (lm = patbuf, pm = pattern; pm != ptr; *lm++ = *pm++)
280 + ;
281 + lm->w_at = 0;
282 + lm->w_wc = EOS;
283 + ls = lm;
107 284
108 - if (!(flags & GLOB_APPEND)) {
109 - gp->gl_pathc = 0;
110 - gp->gl_pathn = gp->gl_offs + INITIAL;
111 - gp->gl_pathv = (char **)malloc(sizeof (char *) * gp->gl_pathn);
285 + /* Find the balanced brace */
286 + for (i = 0, pe = ++ptr; pe->w_wc != EOS; pe++)
287 + if (pe->w_wc == LBRACKET) {
288 + /* Ignore everything between [] */
289 + for (pm = pe++; pe->w_wc != RBRACKET &&
290 + pe->w_wc != EOS; pe++)
291 + ;
292 + if (pe->w_wc == EOS) {
293 + /*
294 + * We could not find a matching RBRACKET.
295 + * Ignore and just look for RBRACE
296 + */
297 + pe = pm;
298 + }
299 + } else if (pe->w_wc == LBRACE) {
300 + i++;
301 + } else if (pe->w_wc == RBRACE) {
302 + if (i == 0)
303 + break;
304 + i--;
305 + }
112 306
113 - if (gp->gl_pathv == NULLCPP)
114 - return (GLOB_NOSPACE);
115 - gp->gl_pathp = gp->gl_pathv + gp->gl_offs;
307 + /* Non matching braces; just glob the pattern */
308 + if (i != 0 || pe->w_wc == EOS)
309 + return (glob0(patbuf, pglob, limitp, errfunc));
116 310
117 - for (i = 0; i < gp->gl_offs; ++i)
118 - gp->gl_pathv[i] = NULL;
311 + for (i = 0, pl = pm = ptr; pm <= pe; pm++) {
312 + switch (pm->w_wc) {
313 + case LBRACKET:
314 + /* Ignore everything between [] */
315 + for (pl = pm++; pm->w_wc != RBRACKET && pm->w_wc != EOS;
316 + pm++)
317 + ;
318 + if (pm->w_wc == EOS) {
319 + /*
320 + * We could not find a matching RBRACKET.
321 + * Ignore and just look for RBRACE
322 + */
323 + pm = pl;
324 + }
325 + break;
326 +
327 + case LBRACE:
328 + i++;
329 + break;
330 +
331 + case RBRACE:
332 + if (i) {
333 + i--;
334 + break;
335 + }
336 + /* FALLTHROUGH */
337 + case COMMA:
338 + if (i && pm->w_wc == COMMA)
339 + break;
340 + else {
341 + /* Append the current string */
342 + for (lm = ls; (pl < pm); *lm++ = *pl++)
343 + ;
344 +
345 + /*
346 + * Append the rest of the pattern after the
347 + * closing brace
348 + */
349 + for (pl = pe + 1;
350 + (*lm++ = *pl++).w_wc != EOS; /* */)
351 + ;
352 +
353 + /* Expand the current pattern */
354 + rv = globexp1(patbuf, pglob, limitp, errfunc);
355 + if (rv && rv != GLOB_NOMATCH)
356 + return (rv);
357 +
358 + /* move after the comma, to the next string */
359 + pl = pm + 1;
360 + }
361 + break;
362 +
363 + default:
364 + break;
365 + }
119 366 }
367 + return (0);
368 +}
120 369
121 - if ((path = malloc(strlen(pattern)+1)) == NULL)
122 - return (GLOB_NOSPACE);
123 370
124 - ipathc = gp->gl_pathc;
125 - rv = globit(0, pattern, gp, flags, errfn, &path);
126 371
127 - if (rv == GLOB_ABORTED) {
372 +/*
373 + * expand tilde from the passwd file.
374 + */
375 +static const wcat_t *
376 +globtilde(const wcat_t *pattern, wcat_t *patbuf, size_t patbuf_len,
377 + glob_t *pglob)
378 +{
379 + struct passwd *pwd;
380 + char *h;
381 + const wcat_t *p;
382 + wcat_t *b, *eb, *q;
383 + size_t n;
384 + wchar_t c;
385 +
386 + if (pattern->w_wc != TILDE || !(pglob->gl_flags & GLOB_TILDE))
387 + return (pattern);
388 +
389 + /* Copy up to the end of the string or / */
390 + eb = &patbuf[patbuf_len - 1];
391 + for (p = pattern + 1, q = patbuf;
392 + q < eb && p->w_wc != EOS && p->w_wc != SLASH; *q++ = *p++)
393 + ;
394 +
395 + q->w_at = 0;
396 + q->w_wc = EOS;
397 +
398 + /* What to do if patbuf is full? */
399 +
400 + if (patbuf[0].w_wc == EOS) {
128 401 /*
129 - * User's error function returned non-zero, or GLOB_ERR was
130 - * set, and we encountered a directory we couldn't search.
402 + * handle a plain ~ or ~/ by expanding $HOME
403 + * first and then trying the password file
131 404 */
132 - free(path);
133 - return (GLOB_ABORTED);
405 + if (issetugid() != 0)
406 + return (pattern);
407 + if ((h = getenv("HOME")) == NULL) {
408 + if ((pwd = getpwuid(getuid())) == NULL)
409 + return (pattern);
410 + else
411 + h = pwd->pw_dir;
412 + }
413 + } else {
414 + /*
415 + * Expand a ~user
416 + */
417 + if ((pwd = getpwnam((char *)patbuf)) == NULL)
418 + return (pattern);
419 + else
420 + h = pwd->pw_dir;
134 421 }
135 422
136 - i = gp->gl_pathc - ipathc;
137 - if (i >= 1 && !(flags & GLOB_NOSORT)) {
138 - qsort((char *)(gp->gl_pathp+ipathc), i, sizeof (char *),
139 - pstrcmp);
423 + /* Copy the home directory */
424 + for (b = patbuf; b < eb && *h != EOS; b++) {
425 + if ((n = mbtowc(&c, h, MB_LEN_MAX)) > 0) {
426 + h += n;
427 + b->w_at = 0;
428 + b->w_wc = c;
429 + } else if (n < 0) {
430 + return (pattern);
431 + } else {
432 + break;
433 + }
140 434 }
141 - if (i == 0) {
142 - if (flags & GLOB_NOCHECK)
143 - (void) append(gp, pattern);
144 - else
145 - rv = GLOB_NOMATCH;
146 - }
147 - gp->gl_pathp[gp->gl_pathc] = NULL;
148 - free(path);
149 435
150 - return (rv);
436 + /* Append the rest of the pattern */
437 + while (b < eb && (*b++ = *p++).w_wc != EOS)
438 + ;
439 + b->w_at = 0;
440 + b->w_wc = EOS;
441 +
442 + return (patbuf);
151 443 }
152 444
445 +static int
446 +g_charclass(const wcat_t **patternp, wcat_t **bufnextp)
447 +{
448 + const wcat_t *pattern = *patternp + 1;
449 + wcat_t *bufnext = *bufnextp;
450 + const wcat_t *colon;
451 + char cbuf[MB_LEN_MAX + 32];
452 + wctype_t cc;
453 + size_t len;
153 454
455 + if ((colon = g_strchr(pattern, COLON)) == NULL ||
456 + colon[1].w_wc != RBRACKET)
457 + return (1); /* not a character class */
458 +
459 + len = (size_t)(colon - pattern);
460 + if (len + MB_LEN_MAX + 1 > sizeof (cbuf))
461 + return (-1); /* invalid character class */
462 + {
463 + wchar_t w;
464 + const wcat_t *s1 = pattern;
465 + char *s2 = cbuf;
466 + size_t n = len;
467 +
468 + /* Copy the string. */
469 + while (n > 0) {
470 + w = (s1++)->w_wc;
471 + /* Character class names must be ASCII. */
472 + if (iswascii(w)) {
473 + n--;
474 + *s2++ = w;
475 + } else {
476 + return (-1); /* invalid character class */
477 + }
478 + }
479 + *s2 = EOS;
480 + }
481 + if ((cc = wctype(cbuf)) == 0)
482 + return (-1); /* invalid character class */
483 + bufnext->w_at = M_QUOTE;
484 + (bufnext++)->w_wc = M_CLASS;
485 + bufnext->w_at = 0;
486 + (bufnext++)->w_wc = cc;
487 + *bufnextp = bufnext;
488 + *patternp += len + 3;
489 +
490 + return (0);
491 +}
492 +
154 493 /*
155 - * Recursive routine to match glob pattern, and walk directories.
494 + * The main glob() routine: compiles the pattern (optionally processing
495 + * quotes), calls glob1() to do the real pattern matching, and finally
496 + * sorts the list (unless unsorted operation is requested). Returns 0
497 + * if things went well, nonzero if errors occurred. It is not an error
498 + * to find no matches.
156 499 */
157 -int
158 -globit(size_t dend, const char *sp, glob_t *gp, int flags,
159 - int (*errfn)(const char *, int), char **path)
500 +static int
501 +glob0(const wcat_t *pattern, glob_t *pglob, struct glob_lim *limitp,
502 + int (*errfunc)(const char *, int))
160 503 {
161 - size_t n;
162 - size_t m;
163 - ssize_t end = 0; /* end of expanded directory */
164 - char *pat = (char *)sp; /* pattern component */
165 - char *dp = (*path) + dend;
166 - int expand = 0; /* path has pattern */
167 - char *cp;
168 - struct stat64 sb;
169 - DIR *dirp;
170 - struct dirent64 *d;
171 - int err;
504 + const wcat_t *qpatnext;
505 + int err, oldpathc;
506 + wchar_t c;
507 + int a;
508 + wcat_t *bufnext, patbuf[MAXPATHLEN];
172 509
173 - for (;;)
174 - switch (*dp++ = *(unsigned char *)sp++) {
175 - case '\0': /* end of source path */
176 - if (expand)
177 - goto Expand;
178 - else {
179 - if (!(flags & GLOB_NOCHECK) ||
180 - flags & (GLOB__CHECK|GLOB_MARK))
181 - if (stat64(*path, &sb) < 0) {
182 - return (0);
510 + qpatnext = globtilde(pattern, patbuf, MAXPATHLEN, pglob);
511 + oldpathc = pglob->gl_pathc;
512 + bufnext = patbuf;
513 +
514 + /*
515 + * We don't need to check for buffer overflow any more.
516 + * The pattern has already been copied to an internal buffer.
517 + */
518 + while ((a = qpatnext->w_at), (c = (qpatnext++)->w_wc) != EOS) {
519 + switch (c) {
520 + case LBRACKET:
521 + if (a != 0) {
522 + bufnext->w_at = a;
523 + (bufnext++)->w_wc = c;
524 + break;
525 + }
526 + a = qpatnext->w_at;
527 + c = qpatnext->w_wc;
528 + if (a == 0 && c == NOT)
529 + ++qpatnext;
530 + if (qpatnext->w_wc == EOS ||
531 + g_strchr(qpatnext+1, RBRACKET) == NULL) {
532 + bufnext->w_at = 0;
533 + (bufnext++)->w_wc = LBRACKET;
534 + if (a == 0 && c == NOT)
535 + --qpatnext;
536 + break;
537 + }
538 + bufnext->w_at = M_QUOTE;
539 + (bufnext++)->w_wc = M_SET;
540 + if (a == 0 && c == NOT) {
541 + bufnext->w_at = M_QUOTE;
542 + (bufnext++)->w_wc = M_NOT;
543 + }
544 + a = qpatnext->w_at;
545 + c = (qpatnext++)->w_wc;
546 + do {
547 + if (a == 0 && c == LBRACKET &&
548 + qpatnext->w_wc == COLON) {
549 + do {
550 + err = g_charclass(&qpatnext,
551 + &bufnext);
552 + if (err)
553 + break;
554 + a = qpatnext->w_at;
555 + c = (qpatnext++)->w_wc;
556 + } while (a == 0 && c == LBRACKET &&
557 + qpatnext->w_wc == COLON);
558 + if (err == -1 &&
559 + !(pglob->gl_flags & GLOB_NOCHECK))
560 + return (GLOB_NOMATCH);
561 + if (a == 0 && c == RBRACKET)
562 + break;
563 + }
564 + bufnext->w_at = a;
565 + (bufnext++)->w_wc = c;
566 + if (qpatnext->w_at == 0 &&
567 + qpatnext->w_wc == RANGE) {
568 + a = qpatnext[1].w_at;
569 + c = qpatnext[1].w_wc;
570 + if (qpatnext[1].w_at != 0 ||
571 + qpatnext[1].w_wc != RBRACKET) {
572 + bufnext->w_at = M_QUOTE;
573 + (bufnext++)->w_wc = M_RNG;
574 + bufnext->w_at = a;
575 + (bufnext++)->w_wc = c;
576 + qpatnext += 2;
183 577 }
184 - if (flags & GLOB_MARK && S_ISDIR(sb.st_mode)) {
185 - *dp = '\0';
186 - *--dp = '/';
187 578 }
188 - if (append(gp, *path) < 0) {
189 - return (GLOB_NOSPACE);
190 - }
191 - return (0);
579 + a = qpatnext->w_at;
580 + c = (qpatnext++)->w_wc;
581 + } while (a != 0 || c != RBRACKET);
582 + pglob->gl_flags |= GLOB_MAGCHAR;
583 + bufnext->w_at = M_QUOTE;
584 + (bufnext++)->w_wc = M_END;
585 + break;
586 + case QUESTION:
587 + if (a != 0) {
588 + bufnext->w_at = a;
589 + (bufnext++)->w_wc = c;
590 + break;
192 591 }
193 - /*NOTREACHED*/
194 -
195 - case '*':
196 - case '?':
197 - case '[':
198 - case '\\':
199 - ++expand;
592 + pglob->gl_flags |= GLOB_MAGCHAR;
593 + bufnext->w_at = M_QUOTE;
594 + (bufnext++)->w_wc = M_ONE;
200 595 break;
201 -
202 - case '/':
203 - if (expand)
204 - goto Expand;
205 - end = dp - *path;
206 - pat = (char *)sp;
596 + case STAR:
597 + if (a != 0) {
598 + bufnext->w_at = a;
599 + (bufnext++)->w_wc = c;
600 + break;
601 + }
602 + pglob->gl_flags |= GLOB_MAGCHAR;
603 + /*
604 + * collapse adjacent stars to one,
605 + * to avoid exponential behavior
606 + */
607 + if (bufnext == patbuf ||
608 + bufnext[-1].w_at != M_QUOTE ||
609 + bufnext[-1].w_wc != M_ALL) {
610 + bufnext->w_at = M_QUOTE;
611 + (bufnext++)->w_wc = M_ALL;
612 + }
207 613 break;
614 + default:
615 + bufnext->w_at = a;
616 + (bufnext++)->w_wc = c;
617 + break;
618 + }
619 + }
620 + bufnext->w_at = 0;
621 + bufnext->w_wc = EOS;
622 +#ifdef DEBUG
623 + qprintf("glob0:glob1:patbuf", patbuf);
624 +#endif
208 625
209 - Expand:
210 - /* determine directory and open it */
211 - (*path)[end] = '\0';
212 - dirp = opendir(**path == '\0' ? "." : *path);
213 - if (dirp == NULL) {
214 - if (errfn != 0 && errfn(*path, errno) != 0 ||
215 - flags&GLOB_ERR) {
216 - return (GLOB_ABORTED);
217 - }
218 - return (0);
626 + if ((err = glob1(patbuf, patbuf+MAXPATHLEN-1, pglob, limitp, errfunc))
627 + != 0)
628 + return (err);
629 +
630 + /*
631 + * If there was no match we are going to append the pattern
632 + * if GLOB_NOCHECK was specified or if GLOB_NOMAGIC was specified
633 + * and the pattern did not contain any magic characters
634 + * GLOB_NOMAGIC is there just for compatibility with csh.
635 + */
636 + if (pglob->gl_pathc == oldpathc) {
637 + if ((pglob->gl_flags & GLOB_NOCHECK) ||
638 + ((pglob->gl_flags & GLOB_NOMAGIC) &&
639 + !(pglob->gl_flags & GLOB_MAGCHAR)))
640 + return (globextend(pattern, pglob, limitp, NULL));
641 + else
642 + return (GLOB_NOMATCH);
643 + }
644 + if (!(pglob->gl_flags & GLOB_NOSORT)) {
645 + if ((pglob->gl_flags & GLOB_KEEPSTAT)) {
646 + /* Keep the paths and stat info synced during sort */
647 + struct glob_path_stat *path_stat;
648 + int i;
649 + int n = pglob->gl_pathc - oldpathc;
650 + int o = pglob->gl_offs + oldpathc;
651 +
652 + if ((path_stat = calloc(n, sizeof (*path_stat))) ==
653 + NULL)
654 + return (GLOB_NOSPACE);
655 + for (i = 0; i < n; i++) {
656 + path_stat[i].gps_path = pglob->gl_pathv[o + i];
657 + path_stat[i].gps_stat = pglob->gl_statv[o + i];
219 658 }
659 + qsort(path_stat, n, sizeof (*path_stat), compare_gps);
660 + for (i = 0; i < n; i++) {
661 + pglob->gl_pathv[o + i] = path_stat[i].gps_path;
662 + pglob->gl_statv[o + i] = path_stat[i].gps_stat;
663 + }
664 + free(path_stat);
665 + } else {
666 + qsort(pglob->gl_pathv + pglob->gl_offs + oldpathc,
667 + pglob->gl_pathc - oldpathc, sizeof (char *),
668 + compare);
669 + }
670 + }
671 + return (0);
672 +}
220 673
221 - /* extract pattern component */
222 - n = sp - pat;
223 - if ((cp = malloc(n)) == NULL) {
224 - (void) closedir(dirp);
674 +static int
675 +compare(const void *p, const void *q)
676 +{
677 + return (strcmp(*(char **)p, *(char **)q));
678 +}
679 +
680 +static int
681 +compare_gps(const void *_p, const void *_q)
682 +{
683 + const struct glob_path_stat *p = (const struct glob_path_stat *)_p;
684 + const struct glob_path_stat *q = (const struct glob_path_stat *)_q;
685 +
686 + return (strcmp(p->gps_path, q->gps_path));
687 +}
688 +
689 +static int
690 +glob1(wcat_t *pattern, wcat_t *pattern_last, glob_t *pglob,
691 + struct glob_lim *limitp, int (*errfunc)(const char *, int))
692 +{
693 + wcat_t pathbuf[MAXPATHLEN];
694 +
695 + /* A null pathname is invalid -- POSIX 1003.1 sect. 2.4. */
696 + if (pattern->w_wc == EOS)
697 + return (0);
698 + return (glob2(pathbuf, pathbuf+MAXPATHLEN-1,
699 + pathbuf, pathbuf+MAXPATHLEN-1,
700 + pattern, pattern_last, pglob, limitp, errfunc));
701 +}
702 +
703 +/*
704 + * The functions glob2 and glob3 are mutually recursive; there is one level
705 + * of recursion for each segment in the pattern that contains one or more
706 + * meta characters.
707 + */
708 +static int
709 +glob2(wcat_t *pathbuf, wcat_t *pathbuf_last, wcat_t *pathend,
710 + wcat_t *pathend_last, wcat_t *pattern, wcat_t *pattern_last,
711 + glob_t *pglob, struct glob_lim *limitp, int (*errfunc)(const char *, int))
712 +{
713 + struct stat sb;
714 + wcat_t *p, *q;
715 + int anymeta;
716 +
717 + /*
718 + * Loop over pattern segments until end of pattern or until
719 + * segment with meta character found.
720 + */
721 + for (anymeta = 0; ; ) {
722 + if (pattern->w_wc == EOS) { /* End of pattern? */
723 + pathend->w_at = 0;
724 + pathend->w_wc = EOS;
725 +
726 + if ((pglob->gl_flags & GLOB_LIMIT) &&
727 + limitp->glim_stat++ >= GLOB_LIMIT_STAT) {
728 + errno = 0;
729 + pathend->w_at = 0;
730 + (pathend++)->w_wc = SEP;
731 + pathend->w_at = 0;
732 + pathend->w_wc = EOS;
225 733 return (GLOB_NOSPACE);
226 734 }
227 - pat = memcpy(cp, pat, n);
228 - pat[n-1] = '\0';
229 - if (*--sp != '\0')
230 - flags |= GLOB__CHECK;
735 + if (g_lstat(pathbuf, &sb, pglob))
736 + return (0);
231 737
232 - /* expand path to max. expansion */
233 - n = dp - *path;
234 - *path = realloc(*path,
235 - strlen(*path) + NAME_MAX + strlen(sp) + 1);
236 - if (*path == NULL) {
237 - (void) closedir(dirp);
238 - free(pat);
738 + if (((pglob->gl_flags & GLOB_MARK) &&
739 + (pathend[-1].w_at != 0 ||
740 + pathend[-1].w_wc != SEP)) &&
741 + (S_ISDIR(sb.st_mode) ||
742 + (S_ISLNK(sb.st_mode) &&
743 + (g_stat(pathbuf, &sb, pglob) == 0) &&
744 + S_ISDIR(sb.st_mode)))) {
745 + if (pathend+1 > pathend_last)
746 + return (GLOB_NOSPACE);
747 + pathend->w_at = 0;
748 + (pathend++)->w_wc = SEP;
749 + pathend->w_at = 0;
750 + pathend->w_wc = EOS;
751 + }
752 + ++pglob->gl_matchc;
753 + return (globextend(pathbuf, pglob, limitp, &sb));
754 + }
755 +
756 + /* Find end of next segment, copy tentatively to pathend. */
757 + q = pathend;
758 + p = pattern;
759 + while (p->w_wc != EOS && p->w_wc != SEP) {
760 + if (ismeta(*p))
761 + anymeta = 1;
762 + if (q+1 > pathend_last)
239 763 return (GLOB_NOSPACE);
764 + *q++ = *p++;
765 + }
766 +
767 + if (!anymeta) { /* No expansion, do next segment. */
768 + pathend = q;
769 + pattern = p;
770 + while (pattern->w_wc == SEP) {
771 + if (pathend+1 > pathend_last)
772 + return (GLOB_NOSPACE);
773 + *pathend++ = *pattern++;
240 774 }
241 - dp = (*path) + n;
775 + } else {
776 + /* Need expansion, recurse. */
777 + return (glob3(pathbuf, pathbuf_last, pathend,
778 + pathend_last, pattern, p, pattern_last,
779 + pglob, limitp, errfunc));
780 + }
781 + }
782 + /* NOTREACHED */
783 +}
242 784
243 - /* read directory and match entries */
244 - err = 0;
245 - while ((d = readdir64(dirp)) != NULL) {
246 - cp = d->d_name;
247 - if ((flags&GLOB_NOESCAPE)
248 - ? fnmatch(pat, cp, FNM_PERIOD|FNM_NOESCAPE)
249 - : fnmatch(pat, cp, FNM_PERIOD))
250 - continue;
785 +static int
786 +glob3(wcat_t *pathbuf, wcat_t *pathbuf_last, wcat_t *pathend,
787 + wcat_t *pathend_last, wcat_t *pattern, wcat_t *restpattern,
788 + wcat_t *restpattern_last, glob_t *pglob, struct glob_lim *limitp,
789 + int (*errfunc)(const char *, int))
790 +{
791 + struct dirent *dp;
792 + DIR *dirp;
793 + int err;
794 + char buf[MAXPATHLEN];
251 795
252 - n = strlen(cp);
253 - (void) memcpy((*path) + end, cp, n);
254 - m = dp - *path;
255 - err = globit(end+n, sp, gp, flags, errfn, path);
256 - dp = (*path) + m; /* globit can move path */
257 - if (err != 0)
258 - break;
796 + /*
797 + * The readdirfunc declaration can't be prototyped, because it is
798 + * assigned, below, to two functions which are prototyped in glob.h
799 + * and dirent.h as taking pointers to differently typed opaque
800 + * structures.
801 + */
802 + struct dirent *(*readdirfunc)(void *);
803 +
804 + if (pathend > pathend_last)
805 + return (GLOB_NOSPACE);
806 + pathend->w_at = 0;
807 + pathend->w_wc = EOS;
808 + errno = 0;
809 +
810 + if ((dirp = g_opendir(pathbuf, pglob)) == NULL) {
811 + /* TODO: don't call for ENOENT or ENOTDIR? */
812 + if (errfunc) {
813 + if (g_Ctoc(pathbuf, buf, sizeof (buf)))
814 + return (GLOB_ABORTED);
815 + if (errfunc(buf, errno) ||
816 + pglob->gl_flags & GLOB_ERR)
817 + return (GLOB_ABORTED);
818 + }
819 + return (0);
820 + }
821 +
822 + err = 0;
823 +
824 + /* Search directory for matching names. */
825 + if (pglob->gl_flags & GLOB_ALTDIRFUNC)
826 + readdirfunc = pglob->gl_readdir;
827 + else
828 + readdirfunc = (struct dirent *(*)(void *))readdir;
829 + while ((dp = (*readdirfunc)(dirp))) {
830 + char *sc;
831 + wcat_t *dc;
832 + size_t n;
833 + wchar_t w;
834 +
835 + if ((pglob->gl_flags & GLOB_LIMIT) &&
836 + limitp->glim_readdir++ >= GLOB_LIMIT_READDIR) {
837 + errno = 0;
838 + pathend->w_at = 0;
839 + (pathend++)->w_wc = SEP;
840 + pathend->w_at = 0;
841 + pathend->w_wc = EOS;
842 + err = GLOB_NOSPACE;
843 + break;
844 + }
845 +
846 + /* Initial DOT must be matched literally. */
847 + if (dp->d_name[0] == DOT && pattern->w_wc != DOT)
848 + continue;
849 + dc = pathend;
850 + sc = dp->d_name;
851 + while (dc < pathend_last) {
852 + if ((n = mbtowc(&w, sc, MB_LEN_MAX)) <= 0) {
853 + sc += 1;
854 + dc->w_at = 0;
855 + dc->w_wc = EOS;
856 + } else {
857 + sc += n;
858 + dc->w_at = 0;
859 + dc->w_wc = w;
259 860 }
861 + dc++;
862 + if (n <= 0)
863 + break;
864 + }
865 + if (dc >= pathend_last) {
866 + dc->w_at = 0;
867 + dc->w_wc = EOS;
868 + err = GLOB_NOSPACE;
869 + break;
870 + }
871 + if (n < 0) {
872 + err = GLOB_NOMATCH;
873 + break;
874 + }
260 875
261 - (void) closedir(dirp);
262 - free(pat);
263 - return (err);
876 + if (!match(pathend, pattern, restpattern, GLOB_LIMIT_RECUR)) {
877 + pathend->w_at = 0;
878 + pathend->w_wc = EOS;
879 + continue;
264 880 }
265 - /* NOTREACHED */
881 + err = glob2(pathbuf, pathbuf_last, --dc, pathend_last,
882 + restpattern, restpattern_last, pglob, limitp,
883 + errfunc);
884 + if (err)
885 + break;
886 + }
887 +
888 + if (pglob->gl_flags & GLOB_ALTDIRFUNC)
889 + (*pglob->gl_closedir)(dirp);
890 + else
891 + closedir(dirp);
892 + return (err);
266 893 }
267 894
895 +
268 896 /*
269 - * Comparison routine for two name arguments, called by qsort.
897 + * Extend the gl_pathv member of a glob_t structure to accommodate a new item,
898 + * add the new item, and update gl_pathc.
899 + *
900 + * This assumes the BSD realloc, which only copies the block when its size
901 + * crosses a power-of-two boundary; for v7 realloc, this would cause quadratic
902 + * behavior.
903 + *
904 + * Return 0 if new item added, error code if memory couldn't be allocated.
905 + *
906 + * Invariant of the glob_t structure:
907 + * Either gl_pathc is zero and gl_pathv is NULL; or gl_pathc > 0 and
908 + * gl_pathv points to (gl_offs + gl_pathc + 1) items.
270 909 */
271 -int
272 -pstrcmp(const void *npp1, const void *npp2)
910 +static int
911 +globextend(const wcat_t *path, glob_t *pglob, struct glob_lim *limitp,
912 + struct stat *sb)
273 913 {
274 - return (strcoll(*(char **)npp1, *(char **)npp2));
914 + char **pathv;
915 + ssize_t i;
916 + size_t newn, len;
917 + char *copy = NULL;
918 + const wcat_t *p;
919 + struct stat **statv;
920 + char junk[MB_LEN_MAX];
921 + int n;
922 +
923 + newn = 2 + pglob->gl_pathc + pglob->gl_offs;
924 + if (pglob->gl_offs >= INT_MAX ||
925 + pglob->gl_pathc >= INT_MAX ||
926 + newn >= INT_MAX ||
927 + SIZE_MAX / sizeof (*pathv) <= newn ||
928 + SIZE_MAX / sizeof (*statv) <= newn) {
929 + nospace:
930 + for (i = pglob->gl_offs; i < (ssize_t)(newn - 2); i++) {
931 + if (pglob->gl_pathv && pglob->gl_pathv[i])
932 + free(pglob->gl_pathv[i]);
933 + if ((pglob->gl_flags & GLOB_KEEPSTAT) != 0 &&
934 + pglob->gl_statv && pglob->gl_statv[i])
935 + free(pglob->gl_statv[i]);
936 + }
937 + if (pglob->gl_pathv) {
938 + free(pglob->gl_pathv);
939 + pglob->gl_pathv = NULL;
940 + }
941 + if ((pglob->gl_flags & GLOB_KEEPSTAT) != 0 &&
942 + pglob->gl_statv) {
943 + free(pglob->gl_statv);
944 + pglob->gl_statv = NULL;
945 + }
946 + return (GLOB_NOSPACE);
947 + }
948 +
949 + pathv = realloc(pglob->gl_pathv, newn * sizeof (*pathv));
950 + if (pathv == NULL)
951 + goto nospace;
952 + if (pglob->gl_pathv == NULL && pglob->gl_offs > 0) {
953 + /* first time around -- clear initial gl_offs items */
954 + pathv += pglob->gl_offs;
955 + for (i = pglob->gl_offs; --i >= 0; )
956 + *--pathv = NULL;
957 + }
958 + pglob->gl_pathv = pathv;
959 +
960 + if ((pglob->gl_flags & GLOB_KEEPSTAT) != 0) {
961 + statv = realloc(pglob->gl_statv, newn * sizeof (*statv));
962 + if (statv == NULL)
963 + goto nospace;
964 + if (pglob->gl_statv == NULL && pglob->gl_offs > 0) {
965 + /* first time around -- clear initial gl_offs items */
966 + statv += pglob->gl_offs;
967 + for (i = pglob->gl_offs; --i >= 0; )
968 + *--statv = NULL;
969 + }
970 + pglob->gl_statv = statv;
971 + if (sb == NULL)
972 + statv[pglob->gl_offs + pglob->gl_pathc] = NULL;
973 + else {
974 + limitp->glim_malloc += sizeof (**statv);
975 + if ((pglob->gl_flags & GLOB_LIMIT) &&
976 + limitp->glim_malloc >= GLOB_LIMIT_MALLOC) {
977 + errno = 0;
978 + return (GLOB_NOSPACE);
979 + }
980 + if ((statv[pglob->gl_offs + pglob->gl_pathc] =
981 + malloc(sizeof (**statv))) == NULL)
982 + goto copy_error;
983 + memcpy(statv[pglob->gl_offs + pglob->gl_pathc], sb,
984 + sizeof (*sb));
985 + }
986 + statv[pglob->gl_offs + pglob->gl_pathc + 1] = NULL;
987 + }
988 +
989 + len = MB_LEN_MAX;
990 + p = path;
991 + while ((n = wctomb(junk, p->w_wc)) > 0) {
992 + len += n;
993 + if ((p++)->w_wc == EOS)
994 + break;
995 + }
996 + if (n < 0)
997 + return (GLOB_NOMATCH);
998 +
999 + limitp->glim_malloc += len;
1000 + if ((copy = malloc(len)) != NULL) {
1001 + if (g_Ctoc(path, copy, len)) {
1002 + free(copy);
1003 + return (GLOB_NOSPACE);
1004 + }
1005 + pathv[pglob->gl_offs + pglob->gl_pathc++] = copy;
1006 + }
1007 + pathv[pglob->gl_offs + pglob->gl_pathc] = NULL;
1008 +
1009 + if ((pglob->gl_flags & GLOB_LIMIT) &&
1010 + (newn * sizeof (*pathv)) + limitp->glim_malloc >
1011 + GLOB_LIMIT_MALLOC) {
1012 + errno = 0;
1013 + return (GLOB_NOSPACE);
1014 + }
1015 + copy_error:
1016 + return (copy == NULL ? GLOB_NOSPACE : 0);
275 1017 }
276 1018
1019 +
277 1020 /*
278 - * Add a new matched filename to the glob_t structure, increasing the
279 - * size of that array, as required.
1021 + * pattern matching function for filenames. Each occurrence of the *
1022 + * pattern causes a recursion level.
280 1023 */
281 -int
282 -append(glob_t *gp, const char *str)
1024 +static int
1025 +match(wcat_t *name, wcat_t *pat, wcat_t *patend, int recur)
283 1026 {
284 - char *cp;
1027 + int ok, negate_range;
1028 + wcat_t c, k;
285 1029
286 - if ((cp = malloc(strlen(str)+1)) == NULL)
287 - return (GLOB_NOSPACE);
288 - gp->gl_pathp[gp->gl_pathc++] = strcpy(cp, str);
1030 + if (recur-- == 0)
1031 + return (1);
289 1032
290 - if ((gp->gl_pathc + gp->gl_offs) >= gp->gl_pathn) {
291 - gp->gl_pathn *= 2;
292 - gp->gl_pathv = (char **)realloc((void *)gp->gl_pathv,
293 - gp->gl_pathn * sizeof (char *));
294 - if (gp->gl_pathv == NULLCPP)
295 - return (GLOB_NOSPACE);
296 - gp->gl_pathp = gp->gl_pathv + gp->gl_offs;
1033 + while (pat < patend) {
1034 + c = *pat++;
1035 + switch (c.w_wc) {
1036 + case M_ALL:
1037 + if (c.w_at != M_QUOTE) {
1038 + k = *name++;
1039 + if (k.w_at != c.w_at || k.w_wc != c.w_wc)
1040 + return (0);
1041 + break;
1042 + }
1043 + while (pat < patend && pat->w_at == M_QUOTE &&
1044 + pat->w_wc == M_ALL)
1045 + pat++; /* eat consecutive '*' */
1046 + if (pat == patend)
1047 + return (1);
1048 + do {
1049 + if (match(name, pat, patend, recur))
1050 + return (1);
1051 + } while ((name++)->w_wc != EOS);
1052 + return (0);
1053 + case M_ONE:
1054 + if (c.w_at != M_QUOTE) {
1055 + k = *name++;
1056 + if (k.w_at != c.w_at || k.w_wc != c.w_wc)
1057 + return (0);
1058 + break;
1059 + }
1060 + if ((name++)->w_wc == EOS)
1061 + return (0);
1062 + break;
1063 + case M_SET:
1064 + if (c.w_at != M_QUOTE) {
1065 + k = *name++;
1066 + if (k.w_at != c.w_at || k.w_wc != c.w_wc)
1067 + return (0);
1068 + break;
1069 + }
1070 + ok = 0;
1071 + if ((k = *name++).w_wc == EOS)
1072 + return (0);
1073 + if ((negate_range = (pat->w_at == M_QUOTE &&
1074 + pat->w_wc == M_NOT)) != 0)
1075 + ++pat;
1076 + while (((c = *pat++).w_at != M_QUOTE) ||
1077 + c.w_wc != M_END) {
1078 + if (c.w_at == M_QUOTE && c.w_wc == M_CLASS) {
1079 + wcat_t cc;
1080 +
1081 + cc.w_at = pat->w_at;
1082 + cc.w_wc = pat->w_wc;
1083 + if (iswctype(k.w_wc, cc.w_wc))
1084 + ok = 1;
1085 + ++pat;
1086 + }
1087 + if (pat->w_at == M_QUOTE &&
1088 + pat->w_wc == M_RNG) {
1089 + if (c.w_wc <= k.w_wc &&
1090 + k.w_wc <= pat[1].w_wc)
1091 + ok = 1;
1092 + pat += 2;
1093 + } else if (c.w_wc == k.w_wc)
1094 + ok = 1;
1095 + }
1096 + if (ok == negate_range)
1097 + return (0);
1098 + break;
1099 + default:
1100 + k = *name++;
1101 + if (k.w_at != c.w_at || k.w_wc != c.w_wc)
1102 + return (0);
1103 + break;
1104 + }
297 1105 }
298 - return (0);
1106 + return (name->w_wc == EOS);
299 1107 }
1108 +
1109 +/* Free allocated data belonging to a glob_t structure. */
1110 +void
1111 +globfree(glob_t *pglob)
1112 +{
1113 + int i;
1114 + char **pp;
1115 +
1116 + if (pglob->gl_pathv != NULL) {
1117 + pp = pglob->gl_pathv + pglob->gl_offs;
1118 + for (i = pglob->gl_pathc; i--; ++pp)
1119 + if (*pp)
1120 + free(*pp);
1121 + free(pglob->gl_pathv);
1122 + pglob->gl_pathv = NULL;
1123 + }
1124 + if ((pglob->gl_flags & GLOB_KEEPSTAT) != 0 &&
1125 + pglob->gl_statv != NULL) {
1126 + for (i = 0; i < pglob->gl_pathc; i++) {
1127 + if (pglob->gl_statv[i] != NULL)
1128 + free(pglob->gl_statv[i]);
1129 + }
1130 + free(pglob->gl_statv);
1131 + pglob->gl_statv = NULL;
1132 + }
1133 +}
1134 +
1135 +static DIR *
1136 +g_opendir(wcat_t *str, glob_t *pglob)
1137 +{
1138 + char buf[MAXPATHLEN];
1139 +
1140 + if (str->w_wc == EOS)
1141 + strlcpy(buf, ".", sizeof (buf));
1142 + else {
1143 + if (g_Ctoc(str, buf, sizeof (buf)))
1144 + return (NULL);
1145 + }
1146 +
1147 + if (pglob->gl_flags & GLOB_ALTDIRFUNC)
1148 + return ((*pglob->gl_opendir)(buf));
1149 +
1150 + return (opendir(buf));
1151 +}
1152 +
1153 +static int
1154 +g_lstat(wcat_t *fn, struct stat *sb, glob_t *pglob)
1155 +{
1156 + char buf[MAXPATHLEN];
1157 +
1158 + if (g_Ctoc(fn, buf, sizeof (buf)))
1159 + return (-1);
1160 + if (pglob->gl_flags & GLOB_ALTDIRFUNC)
1161 + return ((*pglob->gl_lstat)(buf, sb));
1162 + return (lstat(buf, sb));
1163 +}
1164 +
1165 +static int
1166 +g_stat(wcat_t *fn, struct stat *sb, glob_t *pglob)
1167 +{
1168 + char buf[MAXPATHLEN];
1169 +
1170 + if (g_Ctoc(fn, buf, sizeof (buf)))
1171 + return (-1);
1172 + if (pglob->gl_flags & GLOB_ALTDIRFUNC)
1173 + return ((*pglob->gl_stat)(buf, sb));
1174 + return (stat(buf, sb));
1175 +}
1176 +
1177 +static wcat_t *
1178 +g_strchr(const wcat_t *str, wchar_t ch)
1179 +{
1180 + do {
1181 + if (str->w_at == 0 && str->w_wc == ch)
1182 + return ((wcat_t *)str);
1183 + } while ((str++)->w_wc != EOS);
1184 + return (NULL);
1185 +}
1186 +
1187 +static int
1188 +g_Ctoc(const wcat_t *str, char *buf, uint_t len)
1189 +{
1190 + int n;
1191 + wchar_t w;
1192 +
1193 + while (len >= MB_LEN_MAX) {
1194 + w = (str++)->w_wc;
1195 + if ((n = wctomb(buf, w)) > 0) {
1196 + len -= n;
1197 + buf += n;
1198 + }
1199 + if (n < 0)
1200 + break;
1201 + if (w == EOS)
1202 + return (0);
1203 + }
1204 + return (1);
1205 +}
1206 +
1207 +#ifdef DEBUG
1208 +static void
1209 +qprintf(const char *str, wcat_t *s)
1210 +{
1211 + wcat_t *p;
1212 +
1213 + (void) printf("%s:\n", str);
1214 + for (p = s; p->w_wc != EOS; p++)
1215 + (void) printf("%wc", p->w_wc);
1216 + (void) printf("\n");
1217 + for (p = s; p->w_wc != EOS; p++)
1218 + (void) printf("%c", p->w_at & M_PROTECT ? '"' : ' ');
1219 + (void) printf("\n");
1220 + for (p = s; p->w_wc != EOS; p++)
1221 + (void) printf("%c", ismeta(*p) ? '_' : ' ');
1222 + (void) printf("\n");
1223 +}
1224 +#endif
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