2002-01-17 18:39:37 +08:00
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/*
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* Copyright (c) 1989, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Guido van Rossum.
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*
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2015-11-19 03:51:12 +08:00
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* Copyright (c) 2011 The FreeBSD Foundation
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* All rights reserved.
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* Portions of this software were developed by David Chisnall
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* under sponsorship from the FreeBSD Foundation.
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*
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2002-01-17 18:39:37 +08:00
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "@(#)fnmatch.c 8.2 (Berkeley) 4/16/94";
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#endif /* LIBC_SCCS and not lint */
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2016-03-15 05:19:42 +08:00
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#include "winsup.h"
|
2010-01-16 23:11:56 +08:00
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#include <sys/cdefs.h>
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2015-11-19 03:51:12 +08:00
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__FBSDID("$FreeBSD: head/lib/libc/gen/fnmatch.c 288309 2015-09-27 12:52:18Z jilles $");
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2002-01-17 18:39:37 +08:00
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/*
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* Function fnmatch() as specified in POSIX 1003.2-1992, section B.6.
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* Compares a filename or pathname to a pattern.
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*/
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2010-01-16 23:11:56 +08:00
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/*
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* Some notes on multibyte character support:
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* 1. Patterns with illegal byte sequences match nothing.
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* 2. Illegal byte sequences in the "string" argument are handled by treating
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* them as single-byte characters with a value of the first byte of the
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2023-02-14 19:47:54 +08:00
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* sequence cast to wint_t.
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2010-01-16 23:11:56 +08:00
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* 3. Multibyte conversion state objects (mbstate_t) are passed around and
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* used for most, but not all, conversions. Further work will be required
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* to support state-dependent encodings.
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*/
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2002-01-17 18:39:37 +08:00
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#include <fnmatch.h>
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2010-01-16 23:11:56 +08:00
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#include <limits.h>
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#include <string.h>
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#include <wchar.h>
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#include <wctype.h>
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2015-11-19 03:51:12 +08:00
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#include "collate.h"
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2002-01-17 18:39:37 +08:00
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#define EOS '\0'
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2010-01-16 23:11:56 +08:00
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#define RANGE_MATCH 1
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#define RANGE_NOMATCH 0
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#define RANGE_ERROR (-1)
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2002-01-17 18:39:37 +08:00
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2023-02-14 19:47:54 +08:00
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static int rangematch(const char *, wint_t, int, char **, mbstate_t *);
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2015-11-19 03:51:12 +08:00
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static int fnmatch1(const char *, const char *, const char *, int, mbstate_t,
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mbstate_t);
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2002-01-17 18:39:37 +08:00
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int
|
2015-11-19 03:51:12 +08:00
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fnmatch(const char *pattern, const char *string, int flags)
|
2010-01-16 23:11:56 +08:00
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{
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static const mbstate_t initial;
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2015-11-19 03:51:12 +08:00
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return (fnmatch1(pattern, string, string, flags, initial, initial));
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2010-01-16 23:11:56 +08:00
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}
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static int
|
2015-11-19 03:51:12 +08:00
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fnmatch1(const char *pattern, const char *string, const char *stringstart,
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int flags, mbstate_t patmbs, mbstate_t strmbs)
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2002-01-17 18:39:37 +08:00
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{
|
2015-11-19 03:51:12 +08:00
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const char *bt_pattern, *bt_string;
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mbstate_t bt_patmbs, bt_strmbs;
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2002-01-17 18:39:37 +08:00
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char *newp;
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2010-01-16 23:11:56 +08:00
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char c;
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2023-02-14 19:47:54 +08:00
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wint_t pc, sc;
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2010-01-16 23:11:56 +08:00
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size_t pclen, sclen;
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2002-01-17 18:39:37 +08:00
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2015-11-19 03:51:12 +08:00
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bt_pattern = bt_string = NULL;
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for (;;) {
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2023-02-14 19:47:54 +08:00
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pclen = mbrtowi(&pc, pattern, MB_LEN_MAX, &patmbs);
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2010-01-16 23:11:56 +08:00
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if (pclen == (size_t)-1 || pclen == (size_t)-2)
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return (FNM_NOMATCH);
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pattern += pclen;
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2023-02-14 19:47:54 +08:00
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sclen = mbrtowi(&sc, string, MB_LEN_MAX, &strmbs);
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2010-01-16 23:11:56 +08:00
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if (sclen == (size_t)-1 || sclen == (size_t)-2) {
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sc = (unsigned char)*string;
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sclen = 1;
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memset(&strmbs, 0, sizeof(strmbs));
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}
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switch (pc) {
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2002-01-17 18:39:37 +08:00
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case EOS:
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2010-01-16 23:11:56 +08:00
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if ((flags & FNM_LEADING_DIR) && sc == '/')
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2002-01-17 18:39:37 +08:00
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return (0);
|
2015-11-19 03:51:12 +08:00
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if (sc == EOS)
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return (0);
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goto backtrack;
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2002-01-17 18:39:37 +08:00
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case '?':
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2010-01-16 23:11:56 +08:00
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if (sc == EOS)
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2002-01-17 18:39:37 +08:00
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return (FNM_NOMATCH);
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2010-01-16 23:11:56 +08:00
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if (sc == '/' && (flags & FNM_PATHNAME))
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2015-11-19 03:51:12 +08:00
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goto backtrack;
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2010-01-16 23:11:56 +08:00
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if (sc == '.' && (flags & FNM_PERIOD) &&
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2002-01-17 18:39:37 +08:00
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(string == stringstart ||
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((flags & FNM_PATHNAME) && *(string - 1) == '/')))
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2015-11-19 03:51:12 +08:00
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goto backtrack;
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2010-01-16 23:11:56 +08:00
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string += sclen;
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2002-01-17 18:39:37 +08:00
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break;
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case '*':
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c = *pattern;
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/* Collapse multiple stars. */
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while (c == '*')
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c = *++pattern;
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2010-01-16 23:11:56 +08:00
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if (sc == '.' && (flags & FNM_PERIOD) &&
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2002-01-17 18:39:37 +08:00
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(string == stringstart ||
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((flags & FNM_PATHNAME) && *(string - 1) == '/')))
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2015-11-19 03:51:12 +08:00
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goto backtrack;
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2002-01-17 18:39:37 +08:00
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/* Optimize for pattern with * at end or before /. */
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2010-01-16 23:11:56 +08:00
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if (c == EOS)
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2002-01-17 18:39:37 +08:00
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if (flags & FNM_PATHNAME)
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return ((flags & FNM_LEADING_DIR) ||
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strchr(string, '/') == NULL ?
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0 : FNM_NOMATCH);
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else
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return (0);
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2010-01-16 23:11:56 +08:00
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else if (c == '/' && flags & FNM_PATHNAME) {
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2002-01-17 18:39:37 +08:00
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if ((string = strchr(string, '/')) == NULL)
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return (FNM_NOMATCH);
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break;
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}
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2015-11-19 03:51:12 +08:00
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/*
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* First try the shortest match for the '*' that
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* could work. We can forget any earlier '*' since
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* there is no way having it match more characters
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* can help us, given that we are already here.
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*/
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bt_pattern = pattern, bt_patmbs = patmbs;
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bt_string = string, bt_strmbs = strmbs;
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break;
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2002-01-17 18:39:37 +08:00
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case '[':
|
2010-01-16 23:11:56 +08:00
|
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if (sc == EOS)
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2002-01-17 18:39:37 +08:00
|
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return (FNM_NOMATCH);
|
2010-01-16 23:11:56 +08:00
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if (sc == '/' && (flags & FNM_PATHNAME))
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2015-11-19 03:51:12 +08:00
|
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goto backtrack;
|
2010-01-16 23:11:56 +08:00
|
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|
if (sc == '.' && (flags & FNM_PERIOD) &&
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2002-01-17 18:39:37 +08:00
|
|
|
(string == stringstart ||
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((flags & FNM_PATHNAME) && *(string - 1) == '/')))
|
2015-11-19 03:51:12 +08:00
|
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goto backtrack;
|
2002-01-17 18:39:37 +08:00
|
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|
|
2010-01-16 23:11:56 +08:00
|
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switch (rangematch(pattern, sc, flags, &newp,
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|
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&patmbs)) {
|
2002-01-17 18:39:37 +08:00
|
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case RANGE_ERROR:
|
2010-01-16 23:11:56 +08:00
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goto norm;
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2002-01-17 18:39:37 +08:00
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case RANGE_MATCH:
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pattern = newp;
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break;
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case RANGE_NOMATCH:
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2015-11-19 03:51:12 +08:00
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goto backtrack;
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2002-01-17 18:39:37 +08:00
|
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}
|
2010-01-16 23:11:56 +08:00
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string += sclen;
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2002-01-17 18:39:37 +08:00
|
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break;
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|
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case '\\':
|
|
|
|
if (!(flags & FNM_NOESCAPE)) {
|
2023-02-14 19:47:54 +08:00
|
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|
pclen = mbrtowi(&pc, pattern, MB_LEN_MAX,
|
2010-01-16 23:11:56 +08:00
|
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|
&patmbs);
|
|
|
|
if (pclen == (size_t)-1 || pclen == (size_t)-2)
|
|
|
|
return (FNM_NOMATCH);
|
|
|
|
pattern += pclen;
|
2002-01-17 18:39:37 +08:00
|
|
|
}
|
2020-08-06 03:58:22 +08:00
|
|
|
fallthrough;
|
2002-01-17 18:39:37 +08:00
|
|
|
default:
|
2010-01-16 23:11:56 +08:00
|
|
|
norm:
|
2015-11-19 03:51:12 +08:00
|
|
|
string += sclen;
|
2010-01-16 23:11:56 +08:00
|
|
|
if (pc == sc)
|
|
|
|
;
|
|
|
|
else if ((flags & FNM_CASEFOLD) &&
|
|
|
|
(towlower(pc) == towlower(sc)))
|
|
|
|
;
|
2015-11-19 03:51:12 +08:00
|
|
|
else {
|
|
|
|
backtrack:
|
|
|
|
/*
|
|
|
|
* If we have a mismatch (other than hitting
|
|
|
|
* the end of the string), go back to the last
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|
|
|
* '*' seen and have it match one additional
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|
|
|
* character.
|
|
|
|
*/
|
|
|
|
if (bt_pattern == NULL)
|
|
|
|
return (FNM_NOMATCH);
|
2023-02-14 19:47:54 +08:00
|
|
|
sclen = mbrtowi(&sc, bt_string, MB_LEN_MAX,
|
2015-11-19 03:51:12 +08:00
|
|
|
&bt_strmbs);
|
|
|
|
if (sclen == (size_t)-1 ||
|
|
|
|
sclen == (size_t)-2) {
|
|
|
|
sc = (unsigned char)*bt_string;
|
|
|
|
sclen = 1;
|
|
|
|
memset(&bt_strmbs, 0,
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|
|
|
sizeof(bt_strmbs));
|
|
|
|
}
|
|
|
|
if (sc == EOS)
|
|
|
|
return (FNM_NOMATCH);
|
|
|
|
if (sc == '/' && flags & FNM_PATHNAME)
|
|
|
|
return (FNM_NOMATCH);
|
|
|
|
bt_string += sclen;
|
|
|
|
pattern = bt_pattern, patmbs = bt_patmbs;
|
|
|
|
string = bt_string, strmbs = bt_strmbs;
|
|
|
|
}
|
2002-01-17 18:39:37 +08:00
|
|
|
break;
|
|
|
|
}
|
2010-01-16 23:11:56 +08:00
|
|
|
}
|
2002-01-17 18:39:37 +08:00
|
|
|
/* NOTREACHED */
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
2023-02-14 19:47:54 +08:00
|
|
|
rangematch(const char *pattern, wint_t test, int flags, char **newp,
|
2015-11-19 03:51:12 +08:00
|
|
|
mbstate_t *patmbs)
|
2002-01-17 18:39:37 +08:00
|
|
|
{
|
|
|
|
int negate, ok;
|
2023-02-14 19:47:54 +08:00
|
|
|
wint_t c, c2;
|
2010-01-16 23:11:56 +08:00
|
|
|
size_t pclen;
|
|
|
|
const char *origpat;
|
2015-11-19 03:51:12 +08:00
|
|
|
#ifndef __CYGWIN__
|
|
|
|
struct xlocale_collate *table =
|
|
|
|
(struct xlocale_collate*)__get_locale()->components[XLC_COLLATE];
|
|
|
|
#endif
|
2002-01-17 18:39:37 +08:00
|
|
|
|
|
|
|
/*
|
|
|
|
* 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)
|
|
|
|
*/
|
2010-01-16 23:11:56 +08:00
|
|
|
if ( (negate = (*pattern == '!' || *pattern == '^')) )
|
2002-01-17 18:39:37 +08:00
|
|
|
++pattern;
|
|
|
|
|
|
|
|
if (flags & FNM_CASEFOLD)
|
2010-01-16 23:11:56 +08:00
|
|
|
test = towlower(test);
|
2002-01-17 18:39:37 +08:00
|
|
|
|
|
|
|
/*
|
|
|
|
* 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;
|
2010-01-16 23:11:56 +08:00
|
|
|
origpat = pattern;
|
|
|
|
for (;;) {
|
|
|
|
if (*pattern == ']' && pattern > origpat) {
|
|
|
|
pattern++;
|
|
|
|
break;
|
|
|
|
} else if (*pattern == '\0') {
|
2002-01-17 18:39:37 +08:00
|
|
|
return (RANGE_ERROR);
|
2010-01-16 23:11:56 +08:00
|
|
|
} else if (*pattern == '/' && (flags & FNM_PATHNAME)) {
|
|
|
|
return (RANGE_NOMATCH);
|
|
|
|
} else if (*pattern == '\\' && !(flags & FNM_NOESCAPE))
|
|
|
|
pattern++;
|
2023-02-15 03:22:54 +08:00
|
|
|
if (*pattern == '[' && (pattern[1] == ':' || pattern[1] == '.'
|
|
|
|
|| pattern[1] == '=')) {
|
|
|
|
const char ctype = *++pattern;
|
|
|
|
const char *class_p = ++pattern;
|
|
|
|
|
|
|
|
while (*pattern
|
|
|
|
&& (*pattern != ctype || pattern[1] != ']'))
|
|
|
|
++pattern;
|
|
|
|
if (!*pattern)
|
|
|
|
return (RANGE_ERROR);
|
2023-02-16 05:31:49 +08:00
|
|
|
if (ctype == ':') { /* named character class */
|
2023-02-15 03:22:54 +08:00
|
|
|
size_t clen = pattern - class_p;
|
|
|
|
char class[clen + 1];
|
|
|
|
|
|
|
|
*stpncpy (class, class_p, clen) = '\0';
|
|
|
|
if (iswctype (test, wctype (class)))
|
|
|
|
ok = 1;
|
2023-02-16 05:31:49 +08:00
|
|
|
} else if (ctype == '=') { /* equivalence class */
|
|
|
|
size_t elen = pattern - class_p;
|
|
|
|
char equiv[elen + 1];
|
|
|
|
wint_t eqv;
|
|
|
|
|
|
|
|
*stpncpy (equiv, class_p, elen) = '\0';
|
|
|
|
if (mbrtowi(&eqv, equiv, elen, patmbs) == elen
|
|
|
|
&& is_unicode_equiv (test, eqv))
|
|
|
|
ok = 1;
|
2023-02-15 03:22:54 +08:00
|
|
|
}
|
2023-02-16 05:31:49 +08:00
|
|
|
/* TODO: [. is just ignored for now */
|
2023-02-15 03:22:54 +08:00
|
|
|
pattern += 2;
|
|
|
|
continue;
|
|
|
|
|
|
|
|
}
|
2023-02-14 19:47:54 +08:00
|
|
|
pclen = mbrtowi(&c, pattern, MB_LEN_MAX, patmbs);
|
2010-01-16 23:11:56 +08:00
|
|
|
if (pclen == (size_t)-1 || pclen == (size_t)-2)
|
2002-01-17 18:39:37 +08:00
|
|
|
return (RANGE_NOMATCH);
|
2010-01-16 23:11:56 +08:00
|
|
|
pattern += pclen;
|
|
|
|
|
|
|
|
if (flags & FNM_CASEFOLD)
|
|
|
|
c = towlower(c);
|
|
|
|
|
|
|
|
if (*pattern == '-' && *(pattern + 1) != EOS &&
|
|
|
|
*(pattern + 1) != ']') {
|
|
|
|
if (*++pattern == '\\' && !(flags & FNM_NOESCAPE))
|
|
|
|
if (*pattern != EOS)
|
|
|
|
pattern++;
|
2023-02-14 19:47:54 +08:00
|
|
|
pclen = mbrtowi(&c2, pattern, MB_LEN_MAX, patmbs);
|
2010-01-16 23:11:56 +08:00
|
|
|
if (pclen == (size_t)-1 || pclen == (size_t)-2)
|
|
|
|
return (RANGE_NOMATCH);
|
|
|
|
pattern += pclen;
|
2002-01-17 18:39:37 +08:00
|
|
|
if (c2 == EOS)
|
|
|
|
return (RANGE_ERROR);
|
2010-01-16 23:11:56 +08:00
|
|
|
|
2002-01-17 18:39:37 +08:00
|
|
|
if (flags & FNM_CASEFOLD)
|
2010-01-16 23:11:56 +08:00
|
|
|
c2 = towlower(c2);
|
|
|
|
|
2015-11-19 03:51:12 +08:00
|
|
|
#ifdef __CYGWIN__
|
2023-02-24 23:37:44 +08:00
|
|
|
if ((!__get_current_collate_locale ()->win_locale[0]) ?
|
2015-11-19 03:51:12 +08:00
|
|
|
#else
|
|
|
|
if (table->__collate_load_error ?
|
2023-02-19 21:23:53 +08:00
|
|
|
#endif
|
2015-11-19 03:51:12 +08:00
|
|
|
c <= test && test <= c2 :
|
2023-02-19 21:23:53 +08:00
|
|
|
__wcollate_range_cmp(c, test) <= 0
|
|
|
|
&& __wcollate_range_cmp(test, c2) <= 0
|
2015-11-19 03:51:12 +08:00
|
|
|
)
|
2002-01-17 18:39:37 +08:00
|
|
|
ok = 1;
|
|
|
|
} else if (c == test)
|
|
|
|
ok = 1;
|
2010-01-16 23:11:56 +08:00
|
|
|
}
|
2002-01-17 18:39:37 +08:00
|
|
|
|
|
|
|
*newp = (char *)pattern;
|
|
|
|
return (ok == negate ? RANGE_NOMATCH : RANGE_MATCH);
|
|
|
|
}
|