[apple/libc.git] / gen / FreeBSD / fnmatch.c

/*
 * Copyright (c) 1989, 1993, 1994
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Guido van Rossum.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)fnmatch.c	8.2 (Berkeley) 4/16/94";
#endif /* LIBC_SCCS and not lint */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/lib/libc/gen/fnmatch.c,v 1.19 2010/04/16 22:29:24 jilles Exp $");

#include "xlocale_private.h"

/*
 * Function fnmatch() as specified in POSIX 1003.2-1992, section B.6.
 * Compares a filename or pathname to a pattern.
 */

/*
 * Some notes on multibyte character support:
 * 1. Patterns with illegal byte sequences match nothing.
 * 2. Illegal byte sequences in the "string" argument are handled by treating
 *    them as single-byte characters with a value of the first byte of the
 *    sequence cast to wchar_t.
 * 3. Multibyte conversion state objects (mbstate_t) are passed around and
 *    used for most, but not all, conversions. Further work will be required
 *    to support state-dependent encodings.
 */

#include <fnmatch.h>
#include <limits.h>
#include <string.h>
#include <wchar.h>
#include <wctype.h>

#include "collate.h"

#define	EOS	'\0'

#define RETURN_ERROR	2	/* neither 0 or FNM_NOMATCH */
#define RANGE_MATCH     1
#define RANGE_NOMATCH   0
#define RANGE_ERROR     (-1)

#define RECURSION_MAX	64

__private_extern__ int rangematch(const char *, wchar_t, const char *, int, char **, char **, mbstate_t *, mbstate_t *, locale_t);
static int fnmatch1(const char *, const char *, const char *, int, mbstate_t,
		mbstate_t, locale_t, int);

int
fnmatch(pattern, string, flags)
	const char *pattern, *string;
	int flags;
{
	static const mbstate_t initial;
#if __DARWIN_UNIX03
	return (fnmatch1(pattern, string, string, flags, initial, initial, __current_locale(), RECURSION_MAX));
#else /* !__DARWIN_UNIX03 */
	return (fnmatch1(pattern, string, string, flags, initial, initial, __current_locale(), RECURSION_MAX) != 0 ? FNM_NOMATCH : 0);
#endif /* __DARWIN_UNIX03 */
}

static int
fnmatch1(pattern, string, stringstart, flags, patmbs, strmbs, loc, recursion)
	const char *pattern, *string, *stringstart;
	int flags;
	mbstate_t patmbs, strmbs;
	locale_t loc;
	int recursion;
{
	char *newp, *news;
	char c;
	wchar_t pc, sc;
	size_t pclen, sclen;

	if (recursion-- <= 0)
		return RETURN_ERROR;
	for (;;) {
		pclen = mbrtowc_l(&pc, pattern, MB_LEN_MAX, &patmbs, loc);
		if (pclen == (size_t)-1 || pclen == (size_t)-2)
#if __DARWIN_UNIX03
			return (RETURN_ERROR);
#else /* !__DARWIN_UNIX03 */
			return (FNM_NOMATCH);
#endif /* __DARWIN_UNIX03 */
		pattern += pclen;
		sclen = mbrtowc_l(&sc, string, MB_LEN_MAX, &strmbs, loc);
		if (sclen == (size_t)-1 || sclen == (size_t)-2) {
			sc = (unsigned char)*string;
			sclen = 1;
			memset(&strmbs, 0, sizeof(strmbs));
		}
		switch (pc) {
		case EOS:
			if ((flags & FNM_LEADING_DIR) && sc == '/')
				return (0);
			return (sc == EOS ? 0 : FNM_NOMATCH);
		case '?':
			if (sc == EOS)
				return (FNM_NOMATCH);
			if (sc == '/' && (flags & FNM_PATHNAME))
				return (FNM_NOMATCH);
			if (sc == '.' && (flags & FNM_PERIOD) &&
			    (string == stringstart ||
			    ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
				return (FNM_NOMATCH);
			string += sclen;
			break;
		case '*':
			c = *pattern;
			/* Collapse multiple stars. */
			while (c == '*')
				c = *++pattern;

			if (sc == '.' && (flags & FNM_PERIOD) &&
			    (string == stringstart ||
			    ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
				return (FNM_NOMATCH);

			/* Optimize for pattern with * at end or before /. */
			if (c == EOS)
				if (flags & FNM_PATHNAME)
					return ((flags & FNM_LEADING_DIR) ||
					    strchr(string, '/') == NULL ?
					    0 : FNM_NOMATCH);
				else
					return (0);
			else if (c == '/' && flags & FNM_PATHNAME) {
				if ((string = strchr(string, '/')) == NULL)
					return (FNM_NOMATCH);
				break;
			}

			/* General case, use recursion. */
			int ret;
			while (sc != EOS) {
				if ((ret = fnmatch1(pattern, string, stringstart,
				    flags, patmbs, strmbs, loc, recursion)) != FNM_NOMATCH)
					return (ret);
				sclen = mbrtowc_l(&sc, string, MB_LEN_MAX,
				    &strmbs, loc);
				if (sclen == (size_t)-1 ||
				    sclen == (size_t)-2) {
					sc = (unsigned char)*string;
					sclen = 1;
					memset(&strmbs, 0, sizeof(strmbs));
				}
				if (sc == '/' && flags & FNM_PATHNAME)
					break;
				string += sclen;
			}
			return (FNM_NOMATCH);
		case '[':
			if (sc == EOS)
				return (FNM_NOMATCH);
			if (sc == '/' && (flags & FNM_PATHNAME))
				return (FNM_NOMATCH);
			if (sc == '.' && (flags & FNM_PERIOD) &&
			    (string == stringstart ||
			    ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
				return (FNM_NOMATCH);

			switch (rangematch(pattern, sc, string + sclen, flags,
			    &newp, &news, &patmbs, &strmbs, loc)) {
			case RANGE_ERROR:
#if __DARWIN_UNIX03
				return (RETURN_ERROR);
#else /* !__DARWIN_UNIX03 */
				goto norm;
#endif /* __DARWIN_UNIX03 */
			case RANGE_MATCH:
				pattern = newp;
				string = news;
				break;
			case RANGE_NOMATCH:
				return (FNM_NOMATCH);
			}
			break;
		case '\\':
			if (!(flags & FNM_NOESCAPE)) {
				pclen = mbrtowc_l(&pc, pattern, MB_LEN_MAX,
				    &patmbs, loc);
				if (pclen == (size_t)-1 || pclen == (size_t)-2)
#if __DARWIN_UNIX03
					return (RETURN_ERROR);
#else /* !__DARWIN_UNIX03 */
					return (FNM_NOMATCH);
#endif /* __DARWIN_UNIX03 */
				if (pclen == 0)
					pc = '\\';
				pattern += pclen;
			}
			/* FALLTHROUGH */
		default:
#if !__DARWIN_UNIX03
		norm:
#endif /* !__DARWIN_UNIX03 */
			if (pc == sc)
				;
			else if ((flags & FNM_CASEFOLD) &&
				 (towlower_l(pc, loc) == towlower_l(sc, loc)))
				;
			else
				return (FNM_NOMATCH);
			string += sclen;
			break;
		}
	}
	/* NOTREACHED */
}

#ifndef BUILDING_VARIANT
__private_extern__ int
rangematch(pattern, test, string, flags, newp, news, patmbs, strmbs, loc)
	const char *pattern, *string;
	wchar_t test;
	int flags;
	char **newp, **news;
	mbstate_t *patmbs, *strmbs;
	locale_t loc;
{
	int negate, ok, special;
	wchar_t c, c2;
	wchar_t buf[STR_LEN];	/* STR_LEN defined in collate.h */
	size_t pclen, sclen, len;
	const char *origpat, *cp, *savestring;
	mbstate_t save;

	/*
	 * A bracket expression starting with an unquoted circumflex
	 * character produces unspecified results (IEEE 1003.2-1992,
	 * 3.13.2).  This implementation treats it like '!', for
	 * consistency with the regular expression syntax.
	 * J.T. Conklin (conklin@ngai.kaleida.com)
	 */
	if ( (negate = (*pattern == '!' || *pattern == '^')) )
		++pattern;

	if (flags & FNM_CASEFOLD)
		test = towlower_l(test, loc);

	/*
	 * A right bracket shall lose its special meaning and represent
	 * itself in a bracket expression if it occurs first in the list.
	 * -- POSIX.2 2.8.3.2
	 */
	ok = 0;
	origpat = pattern;
	for (;;) {
		c = 0;
		if (*pattern == ']' && pattern > origpat) {
			break;
		} else if (*pattern == '\0') {
			return (RANGE_ERROR);
		} else if (*pattern == '/' && (flags & FNM_PATHNAME)) {
			return (RANGE_NOMATCH);
		} else if (*pattern == '\\' && !(flags & FNM_NOESCAPE))
			pattern++;
		else if (*pattern == '[' && ((special = *(pattern + 1)) == '.' || special == '=' || special == ':')) {
			cp = (pattern += 2);
			while((cp = strchr(cp, special))) {
				if (*(cp + 1) == ']')
					break;
				cp++;
			}
			if (!cp)
				return (RANGE_ERROR);
			if (special == '.') {
treat_like_collating_symbol:
				len = __collate_collating_symbol(buf, STR_LEN, pattern, cp - pattern, patmbs, loc);
				if (len == (size_t)-1 || len == 0)
					return (RANGE_ERROR);
				pattern = cp + 2;
				if (len > 1) {
					wchar_t *wp, sc;
					/* no multi-character collation symbols as start of range */
					if (*(cp + 2) == '-' && *(cp + 3) != EOS
					    && *(cp + 3) != ']')
						return (RANGE_ERROR);
					wp = buf;
					if (test != *wp++)
						continue;
					if (len == 1) {
						ok = 1;
						break;
					}
					memcpy(&save, strmbs, sizeof(save));
					savestring = string;
					while (--len > 0) {
						sclen = mbrtowc_l(&sc, string, MB_LEN_MAX, strmbs, loc);
						if (sclen == (size_t)-1 || sclen == (size_t)-2) {
							sc = (unsigned char)*string;
							sclen = 1;
							memset(&strmbs, 0, sizeof(strmbs));
						}
						if (sc != *wp++) {
							memcpy(strmbs, &save, sizeof(save));
							string = savestring;
							break;
						}
						string += sclen;
					}
					if (len == 0) {
						ok = 1;
						break;
					}
					continue; /* no match */
				}
				c = *buf;
			} else if (special == '=') {
				int ec;
				memcpy(&save, patmbs, sizeof(save));
				ec = __collate_equiv_class(pattern, cp - pattern, patmbs, loc);
				if (ec < 0)
					return (RANGE_ERROR);
				if (ec == 0) {
					memcpy(patmbs, &save, sizeof(save));
					goto treat_like_collating_symbol;
				}
				pattern = cp + 2;
				/* no equivalence classes as start of range */
				if (*(cp + 2) == '-' && *(cp + 3) != EOS &&
				    *(cp + 3) != ']')
					return (RANGE_ERROR);
				len = __collate_equiv_match(ec, NULL, 0, test, string, strlen(string), strmbs, &sclen, loc);
				if (len == (size_t)-1) {
					return (RANGE_ERROR);
				}
				if (len > 0) {
					ok = 1;
					string += sclen;
					break;
				}
				continue;
			} else { /* special == ':' */
				wctype_t charclass;
				char name[CHARCLASS_NAME_MAX + 1];
				/* no character classes as start of range */
				if (*(cp + 2) == '-' && *(cp + 3) != EOS &&
				    *(cp + 3) != ']')
					return (RANGE_ERROR);
				/* assume character class names are ascii */
				if (cp - pattern > CHARCLASS_NAME_MAX)
					return (RANGE_ERROR);
				strlcpy(name, pattern, cp - pattern + 1);
				pattern = cp + 2;
				if ((charclass = wctype(name)) == 0)
					return (RANGE_ERROR);
				if (iswctype_l(test, charclass, loc)) {
					ok = 1;
					break;
				}
				continue;
			}
		}
		if (!c) {
			pclen = mbrtowc_l(&c, pattern, MB_LEN_MAX, patmbs, loc);
			if (pclen == (size_t)-1 || pclen == (size_t)-2)
				return (RANGE_ERROR);
			pattern += pclen;
		}

		if (flags & FNM_CASEFOLD)
			c = towlower_l(c, loc);

		if (*pattern == '-' && *(pattern + 1) != EOS &&
		    *(pattern + 1) != ']') {
			if (*++pattern == '\\' && !(flags & FNM_NOESCAPE))
				if (*pattern != EOS)
					pattern++;
			pclen = mbrtowc_l(&c2, pattern, MB_LEN_MAX, patmbs, loc);
			if (pclen == (size_t)-1 || pclen == (size_t)-2)
				return (RANGE_ERROR);
			pattern += pclen;
			if (c2 == EOS)
				return (RANGE_ERROR);

			if ((c2 == '[' && (special = *pattern) == '.') || special == '=' || special == ':') {
				/* no equivalence classes or character classes as end of range */
				if (special == '=' || special == ':')
					return (RANGE_ERROR);
				cp = ++pattern;
				while((cp = strchr(cp, special))) {
					if (*(cp + 1) == ']')
						break;
					cp++;
				}
				if (!cp)
					return (RANGE_ERROR);
				len = __collate_collating_symbol(buf, STR_LEN, pattern, cp - pattern, patmbs, loc);
				/* no multi-character collation symbols as end of range */
				if (len != 1)
					return (RANGE_ERROR);
				pattern = cp + 2;
				c2 = *buf;
			}

			if (flags & FNM_CASEFOLD)
				c2 = towlower_l(c2, loc);

			if (loc->__collate_load_error ?
			    c <= test && test <= c2 :
			       __collate_range_cmp(c, test, loc) <= 0
			    && __collate_range_cmp(test, c2, loc) <= 0
			   ) {
				ok = 1;
				break;
			}
		} else if (c == test) {
			ok = 1;
			break;
		}
	}
	/* go to end of bracket expression */
	special = 0;
	while(*pattern != ']') {
		if (*pattern == 0)
			return (RANGE_ERROR);
		if (*pattern == special) {
			if (*++pattern == ']') {
				special = 0;
				pattern++;
			}
			continue;
		}
		if (!special && *pattern == '[') {
			special = *++pattern;
			if (special != '.' && special != '=' && special != ':')
				special = 0;
			else
				pattern++;
			continue;
		}
		pclen = mbrtowc_l(&c, pattern, MB_LEN_MAX, patmbs, loc);
		if (pclen == (size_t)-1 || pclen == (size_t)-2)
			return (RANGE_ERROR);
		pattern += pclen;
 	}

	*newp = (char *)++pattern;
	*news = (char *)string;
	return (ok == negate ? RANGE_NOMATCH : RANGE_MATCH);
}
#endif /* BUILDING_VARIANT */
Commit	Line	Data
e9ce8d39 A	1	/*
	2	* Copyright (c) 1989, 1993, 1994
	3	* The Regents of the University of California. All rights reserved.
	4	*
	5	* This code is derived from software contributed to Berkeley by
	6	* Guido van Rossum.
	7	*
	8	* 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.
e9ce8d39 A	16	* 4. 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
5b2abdfb A	33	#if defined(LIBC_SCCS) && !defined(lint)
	34	static char sccsid[] = "@(#)fnmatch.c 8.2 (Berkeley) 4/16/94";
	35	#endif /* LIBC_SCCS and not lint */
9385eb3d	36	#include <sys/cdefs.h>
1f2f436a	37	__FBSDID("$FreeBSD: src/lib/libc/gen/fnmatch.c,v 1.19 2010/04/16 22:29:24 jilles Exp $");
e9ce8d39	38
ad3c9f2a A	39	#include "xlocale_private.h"
ad3c9f2a A	40
e9ce8d39 A	41	/*
	42	* Function fnmatch() as specified in POSIX 1003.2-1992, section B.6.
	43	* Compares a filename or pathname to a pattern.
	44	*/
	45
3d9156a7 A	46	/*
	47	* Some notes on multibyte character support:
	48	* 1. Patterns with illegal byte sequences match nothing.
	49	* 2. Illegal byte sequences in the "string" argument are handled by treating
	50	* them as single-byte characters with a value of the first byte of the
	51	* sequence cast to wchar_t.
	52	* 3. Multibyte conversion state objects (mbstate_t) are passed around and
	53	* used for most, but not all, conversions. Further work will be required
	54	* to support state-dependent encodings.
	55	*/
	56
e9ce8d39	57	#include <fnmatch.h>
3d9156a7	58	#include <limits.h>
e9ce8d39	59	#include <string.h>
3d9156a7 A	60	#include <wchar.h>
3d9156a7 A	61	#include <wctype.h>
5b2abdfb A	62
5b2abdfb A	63	#include "collate.h"
e9ce8d39 A	64
	65	#define EOS '\0'
	66
ad3c9f2a	67	#define RETURN_ERROR 2 /* neither 0 or FNM_NOMATCH */
5b2abdfb A	68	#define RANGE_MATCH 1
	69	#define RANGE_NOMATCH 0
	70	#define RANGE_ERROR (-1)
	71
ad3c9f2a A	72	#define RECURSION_MAX 64
	73
	74	__private_extern__ int rangematch(const char , wchar_t, const char , int, char , char , mbstate_t , mbstate_t , locale_t);
1f2f436a	75	static int fnmatch1(const char , const char , const char *, int, mbstate_t,
ad3c9f2a	76	mbstate_t, locale_t, int);
e9ce8d39 A	77
	78	int
	79	fnmatch(pattern, string, flags)
	80	const char pattern, string;
	81	int flags;
3d9156a7 A	82	{
3d9156a7 A	83	static const mbstate_t initial;
ad3c9f2a A	84	#if __DARWIN_UNIX03
	85	return (fnmatch1(pattern, string, string, flags, initial, initial, __current_locale(), RECURSION_MAX));
	86	#else /* !__DARWIN_UNIX03 */
	87	return (fnmatch1(pattern, string, string, flags, initial, initial, __current_locale(), RECURSION_MAX) != 0 ? FNM_NOMATCH : 0);
	88	#endif /* __DARWIN_UNIX03 */
3d9156a7 A	89	}
	90
	91	static int
ad3c9f2a	92	fnmatch1(pattern, string, stringstart, flags, patmbs, strmbs, loc, recursion)
1f2f436a	93	const char pattern, string, *stringstart;
3d9156a7 A	94	int flags;
3d9156a7 A	95	mbstate_t patmbs, strmbs;
ad3c9f2a A	96	locale_t loc;
ad3c9f2a A	97	int recursion;
e9ce8d39	98	{
ad3c9f2a	99	char newp, news;
3d9156a7 A	100	char c;
	101	wchar_t pc, sc;
	102	size_t pclen, sclen;
e9ce8d39	103
ad3c9f2a A	104	if (recursion-- <= 0)
ad3c9f2a A	105	return RETURN_ERROR;
1f2f436a	106	for (;;) {
ad3c9f2a	107	pclen = mbrtowc_l(&pc, pattern, MB_LEN_MAX, &patmbs, loc);
3d9156a7	108	if (pclen == (size_t)-1 \|\| pclen == (size_t)-2)
ad3c9f2a A	109	#if __DARWIN_UNIX03
	110	return (RETURN_ERROR);
	111	#else /* !__DARWIN_UNIX03 */
3d9156a7	112	return (FNM_NOMATCH);
ad3c9f2a	113	#endif /* __DARWIN_UNIX03 */
3d9156a7	114	pattern += pclen;
ad3c9f2a	115	sclen = mbrtowc_l(&sc, string, MB_LEN_MAX, &strmbs, loc);
3d9156a7 A	116	if (sclen == (size_t)-1 \|\| sclen == (size_t)-2) {
	117	sc = (unsigned char)*string;
	118	sclen = 1;
	119	memset(&strmbs, 0, sizeof(strmbs));
	120	}
	121	switch (pc) {
e9ce8d39	122	case EOS:
3d9156a7	123	if ((flags & FNM_LEADING_DIR) && sc == '/')
5b2abdfb	124	return (0);
3d9156a7	125	return (sc == EOS ? 0 : FNM_NOMATCH);
e9ce8d39	126	case '?':
3d9156a7	127	if (sc == EOS)
e9ce8d39	128	return (FNM_NOMATCH);
3d9156a7	129	if (sc == '/' && (flags & FNM_PATHNAME))
e9ce8d39	130	return (FNM_NOMATCH);
3d9156a7	131	if (sc == '.' && (flags & FNM_PERIOD) &&
e9ce8d39 A	132	(string == stringstart \|\|
	133	((flags & FNM_PATHNAME) && *(string - 1) == '/')))
	134	return (FNM_NOMATCH);
3d9156a7	135	string += sclen;
e9ce8d39 A	136	break;
	137	case '*':
	138	c = *pattern;
	139	/* Collapse multiple stars. */
	140	while (c == '*')
	141	c = *++pattern;
	142
3d9156a7	143	if (sc == '.' && (flags & FNM_PERIOD) &&
e9ce8d39 A	144	(string == stringstart \|\|
	145	((flags & FNM_PATHNAME) && *(string - 1) == '/')))
	146	return (FNM_NOMATCH);
	147
	148	/* Optimize for pattern with * at end or before /. */
	149	if (c == EOS)
	150	if (flags & FNM_PATHNAME)
5b2abdfb A	151	return ((flags & FNM_LEADING_DIR) \|\|
5b2abdfb A	152	strchr(string, '/') == NULL ?
e9ce8d39 A	153	0 : FNM_NOMATCH);
	154	else
	155	return (0);
	156	else if (c == '/' && flags & FNM_PATHNAME) {
	157	if ((string = strchr(string, '/')) == NULL)
	158	return (FNM_NOMATCH);
	159	break;
	160	}
	161
	162	/* General case, use recursion. */
ad3c9f2a	163	int ret;
3d9156a7	164	while (sc != EOS) {
ad3c9f2a A	165	if ((ret = fnmatch1(pattern, string, stringstart,
	166	flags, patmbs, strmbs, loc, recursion)) != FNM_NOMATCH)
	167	return (ret);
	168	sclen = mbrtowc_l(&sc, string, MB_LEN_MAX,
	169	&strmbs, loc);
3d9156a7 A	170	if (sclen == (size_t)-1 \|\|
	171	sclen == (size_t)-2) {
	172	sc = (unsigned char)*string;
	173	sclen = 1;
	174	memset(&strmbs, 0, sizeof(strmbs));
	175	}
	176	if (sc == '/' && flags & FNM_PATHNAME)
e9ce8d39	177	break;
3d9156a7	178	string += sclen;
e9ce8d39 A	179	}
	180	return (FNM_NOMATCH);
	181	case '[':
3d9156a7	182	if (sc == EOS)
e9ce8d39	183	return (FNM_NOMATCH);
3d9156a7	184	if (sc == '/' && (flags & FNM_PATHNAME))
5b2abdfb	185	return (FNM_NOMATCH);
3d9156a7	186	if (sc == '.' && (flags & FNM_PERIOD) &&
5b2abdfb A	187	(string == stringstart \|\|
5b2abdfb A	188	((flags & FNM_PATHNAME) && *(string - 1) == '/')))
e9ce8d39	189	return (FNM_NOMATCH);
5b2abdfb	190
ad3c9f2a A	191	switch (rangematch(pattern, sc, string + sclen, flags,
ad3c9f2a A	192	&newp, &news, &patmbs, &strmbs, loc)) {
5b2abdfb	193	case RANGE_ERROR:
ad3c9f2a A	194	#if __DARWIN_UNIX03
	195	return (RETURN_ERROR);
	196	#else /* !__DARWIN_UNIX03 */
5b2abdfb	197	goto norm;
ad3c9f2a	198	#endif /* __DARWIN_UNIX03 */
5b2abdfb A	199	case RANGE_MATCH:
5b2abdfb A	200	pattern = newp;
ad3c9f2a	201	string = news;
5b2abdfb A	202	break;
5b2abdfb A	203	case RANGE_NOMATCH:
e9ce8d39	204	return (FNM_NOMATCH);
5b2abdfb	205	}
e9ce8d39 A	206	break;
	207	case '\\':
	208	if (!(flags & FNM_NOESCAPE)) {
ad3c9f2a A	209	pclen = mbrtowc_l(&pc, pattern, MB_LEN_MAX,
ad3c9f2a A	210	&patmbs, loc);
3d9156a7	211	if (pclen == (size_t)-1 \|\| pclen == (size_t)-2)
ad3c9f2a A	212	#if __DARWIN_UNIX03
	213	return (RETURN_ERROR);
	214	#else /* !__DARWIN_UNIX03 */
3d9156a7	215	return (FNM_NOMATCH);
ad3c9f2a	216	#endif /* __DARWIN_UNIX03 */
3d9156a7 A	217	if (pclen == 0)
	218	pc = '\\';
	219	pattern += pclen;
e9ce8d39 A	220	}
	221	/* FALLTHROUGH */
	222	default:
ad3c9f2a	223	#if !__DARWIN_UNIX03
5b2abdfb	224	norm:
ad3c9f2a	225	#endif /* !__DARWIN_UNIX03 */
3d9156a7	226	if (pc == sc)
5b2abdfb A	227	;
5b2abdfb A	228	else if ((flags & FNM_CASEFOLD) &&
ad3c9f2a	229	(towlower_l(pc, loc) == towlower_l(sc, loc)))
5b2abdfb A	230	;
5b2abdfb A	231	else
e9ce8d39	232	return (FNM_NOMATCH);
3d9156a7	233	string += sclen;
e9ce8d39 A	234	break;
e9ce8d39 A	235	}
3d9156a7	236	}
e9ce8d39 A	237	/* NOTREACHED */
	238	}
	239
ad3c9f2a A	240	#ifndef BUILDING_VARIANT
	241	__private_extern__ int
	242	rangematch(pattern, test, string, flags, newp, news, patmbs, strmbs, loc)
	243	const char pattern, string;
3d9156a7	244	wchar_t test;
5b2abdfb	245	int flags;
ad3c9f2a A	246	char newp, news;
	247	mbstate_t patmbs, strmbs;
	248	locale_t loc;
e9ce8d39	249	{
ad3c9f2a	250	int negate, ok, special;
3d9156a7	251	wchar_t c, c2;
ad3c9f2a A	252	wchar_t buf[STR_LEN]; /* STR_LEN defined in collate.h */
	253	size_t pclen, sclen, len;
	254	const char origpat, cp, *savestring;
	255	mbstate_t save;
e9ce8d39 A	256
	257	/*
	258	* A bracket expression starting with an unquoted circumflex
	259	* character produces unspecified results (IEEE 1003.2-1992,
	260	* 3.13.2). This implementation treats it like '!', for
	261	* consistency with the regular expression syntax.
	262	* J.T. Conklin (conklin@ngai.kaleida.com)
	263	*/
5b2abdfb	264	if ( (negate = (pattern == '!' \|\| pattern == '^')) )
e9ce8d39	265	++pattern;
5b2abdfb A	266
5b2abdfb A	267	if (flags & FNM_CASEFOLD)
ad3c9f2a	268	test = towlower_l(test, loc);
5b2abdfb A	269
	270	/*
	271	* A right bracket shall lose its special meaning and represent
	272	* itself in a bracket expression if it occurs first in the list.
	273	* -- POSIX.2 2.8.3.2
	274	*/
	275	ok = 0;
3d9156a7 A	276	origpat = pattern;
3d9156a7 A	277	for (;;) {
ad3c9f2a	278	c = 0;
3d9156a7	279	if (*pattern == ']' && pattern > origpat) {
3d9156a7 A	280	break;
3d9156a7 A	281	} else if (*pattern == '\0') {
5b2abdfb	282	return (RANGE_ERROR);
3d9156a7	283	} else if (*pattern == '/' && (flags & FNM_PATHNAME)) {
3d9156a7 A	284	return (RANGE_NOMATCH);
	285	} else if (*pattern == '\\' && !(flags & FNM_NOESCAPE))
	286	pattern++;
ad3c9f2a A	287	else if (pattern == '[' && ((special = (pattern + 1)) == '.' \|\| special == '=' \|\| special == ':')) {
ad3c9f2a A	288	cp = (pattern += 2);
6465356a	289	while((cp = strchr(cp, special))) {
ad3c9f2a A	290	if (*(cp + 1) == ']')
	291	break;
	292	cp++;
	293	}
	294	if (!cp)
	295	return (RANGE_ERROR);
	296	if (special == '.') {
	297	treat_like_collating_symbol:
	298	len = __collate_collating_symbol(buf, STR_LEN, pattern, cp - pattern, patmbs, loc);
	299	if (len == (size_t)-1 \|\| len == 0)
	300	return (RANGE_ERROR);
	301	pattern = cp + 2;
	302	if (len > 1) {
	303	wchar_t *wp, sc;
	304	/* no multi-character collation symbols as start of range */
	305	if ((cp + 2) == '-' && (cp + 3) != EOS
	306	&& *(cp + 3) != ']')
	307	return (RANGE_ERROR);
	308	wp = buf;
	309	if (test != *wp++)
	310	continue;
	311	if (len == 1) {
	312	ok = 1;
	313	break;
	314	}
	315	memcpy(&save, strmbs, sizeof(save));
	316	savestring = string;
	317	while (--len > 0) {
	318	sclen = mbrtowc_l(&sc, string, MB_LEN_MAX, strmbs, loc);
	319	if (sclen == (size_t)-1 \|\| sclen == (size_t)-2) {
	320	sc = (unsigned char)*string;
	321	sclen = 1;
	322	memset(&strmbs, 0, sizeof(strmbs));
	323	}
	324	if (sc != *wp++) {
	325	memcpy(strmbs, &save, sizeof(save));
	326	string = savestring;
	327	break;
	328	}
	329	string += sclen;
	330	}
	331	if (len == 0) {
	332	ok = 1;
	333	break;
	334	}
	335	continue; /* no match */
	336	}
	337	c = *buf;
	338	} else if (special == '=') {
	339	int ec;
	340	memcpy(&save, patmbs, sizeof(save));
	341	ec = __collate_equiv_class(pattern, cp - pattern, patmbs, loc);
	342	if (ec < 0)
	343	return (RANGE_ERROR);
	344	if (ec == 0) {
	345	memcpy(patmbs, &save, sizeof(save));
	346	goto treat_like_collating_symbol;
	347	}
	348	pattern = cp + 2;
	349	/* no equivalence classes as start of range */
	350	if ((cp + 2) == '-' && (cp + 3) != EOS &&
	351	*(cp + 3) != ']')
	352	return (RANGE_ERROR);
	353	len = __collate_equiv_match(ec, NULL, 0, test, string, strlen(string), strmbs, &sclen, loc);
6465356a	354	if (len == (size_t)-1) {
ad3c9f2a	355	return (RANGE_ERROR);
6465356a	356	}
ad3c9f2a A	357	if (len > 0) {
	358	ok = 1;
	359	string += sclen;
	360	break;
	361	}
	362	continue;
	363	} else { /* special == ':' */
	364	wctype_t charclass;
	365	char name[CHARCLASS_NAME_MAX + 1];
	366	/* no character classes as start of range */
	367	if ((cp + 2) == '-' && (cp + 3) != EOS &&
	368	*(cp + 3) != ']')
	369	return (RANGE_ERROR);
	370	/* assume character class names are ascii */
	371	if (cp - pattern > CHARCLASS_NAME_MAX)
	372	return (RANGE_ERROR);
	373	strlcpy(name, pattern, cp - pattern + 1);
	374	pattern = cp + 2;
	375	if ((charclass = wctype(name)) == 0)
	376	return (RANGE_ERROR);
	377	if (iswctype_l(test, charclass, loc)) {
	378	ok = 1;
	379	break;
	380	}
	381	continue;
	382	}
	383	}
	384	if (!c) {
	385	pclen = mbrtowc_l(&c, pattern, MB_LEN_MAX, patmbs, loc);
	386	if (pclen == (size_t)-1 \|\| pclen == (size_t)-2)
	387	return (RANGE_ERROR);
	388	pattern += pclen;
	389	}
5b2abdfb A	390
5b2abdfb A	391	if (flags & FNM_CASEFOLD)
ad3c9f2a	392	c = towlower_l(c, loc);
5b2abdfb	393
3d9156a7 A	394	if (pattern == '-' && (pattern + 1) != EOS &&
	395	*(pattern + 1) != ']') {
	396	if (*++pattern == '\\' && !(flags & FNM_NOESCAPE))
	397	if (*pattern != EOS)
	398	pattern++;
ad3c9f2a	399	pclen = mbrtowc_l(&c2, pattern, MB_LEN_MAX, patmbs, loc);
3d9156a7	400	if (pclen == (size_t)-1 \|\| pclen == (size_t)-2)
ad3c9f2a	401	return (RANGE_ERROR);
3d9156a7	402	pattern += pclen;
e9ce8d39	403	if (c2 == EOS)
5b2abdfb A	404	return (RANGE_ERROR);
5b2abdfb A	405
6465356a	406	if ((c2 == '[' && (special = *pattern) == '.') \|\| special == '=' \|\| special == ':') {
ad3c9f2a A	407	/* no equivalence classes or character classes as end of range */
	408	if (special == '=' \|\| special == ':')
	409	return (RANGE_ERROR);
	410	cp = ++pattern;
6465356a	411	while((cp = strchr(cp, special))) {
ad3c9f2a A	412	if (*(cp + 1) == ']')
	413	break;
	414	cp++;
	415	}
	416	if (!cp)
	417	return (RANGE_ERROR);
	418	len = __collate_collating_symbol(buf, STR_LEN, pattern, cp - pattern, patmbs, loc);
	419	/* no multi-character collation symbols as end of range */
	420	if (len != 1)
	421	return (RANGE_ERROR);
	422	pattern = cp + 2;
	423	c2 = *buf;
	424	}
	425
5b2abdfb	426	if (flags & FNM_CASEFOLD)
ad3c9f2a	427	c2 = towlower_l(c2, loc);
5b2abdfb	428
ad3c9f2a	429	if (loc->__collate_load_error ?
5b2abdfb	430	c <= test && test <= c2 :
ad3c9f2a A	431	__collate_range_cmp(c, test, loc) <= 0
	432	&& __collate_range_cmp(test, c2, loc) <= 0
	433	) {
e9ce8d39	434	ok = 1;
ad3c9f2a A	435	break;
	436	}
	437	} else if (c == test) {
e9ce8d39	438	ok = 1;
ad3c9f2a A	439	break;
ad3c9f2a A	440	}
3d9156a7	441	}
ad3c9f2a A	442	/* go to end of bracket expression */
	443	special = 0;
	444	while(*pattern != ']') {
	445	if (*pattern == 0)
	446	return (RANGE_ERROR);
	447	if (*pattern == special) {
	448	if (*++pattern == ']') {
	449	special = 0;
	450	pattern++;
	451	}
	452	continue;
	453	}
	454	if (!special && *pattern == '[') {
	455	special = *++pattern;
	456	if (special != '.' && special != '=' && special != ':')
	457	special = 0;
	458	else
	459	pattern++;
	460	continue;
	461	}
	462	pclen = mbrtowc_l(&c, pattern, MB_LEN_MAX, patmbs, loc);
	463	if (pclen == (size_t)-1 \|\| pclen == (size_t)-2)
	464	return (RANGE_ERROR);
	465	pattern += pclen;
	466	}
5b2abdfb	467
ad3c9f2a A	468	newp = (char )++pattern;
ad3c9f2a A	469	news = (char )string;
5b2abdfb	470	return (ok == negate ? RANGE_NOMATCH : RANGE_MATCH);
e9ce8d39	471	}
ad3c9f2a	472	#endif /* BUILDING_VARIANT */