port/locale/fnmatch.c

4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore/*
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * Copyright (c) 1989, 1993, 1994
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *  The Regents of the University of California.  All rights reserved.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * This code is derived from software contributed to Berkeley by
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * Guido van Rossum.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * Redistribution and use in source and binary forms, with or without
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * modification, are permitted provided that the following conditions
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * are met:
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * 1. Redistributions of source code must retain the above copyright
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *    notice, this list of conditions and the following disclaimer.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * 2. Redistributions in binary form must reproduce the above copyright
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *    notice, this list of conditions and the following disclaimer in the
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *    documentation and/or other materials provided with the distribution.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * 4. Neither the name of the University nor the names of its contributors
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *    may be used to endorse or promote products derived from this software
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *    without specific prior written permission.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * SUCH DAMAGE.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore */
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore/*
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore * Copyright 2013 Garrett D'Amore <garrett@damore.org>
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * Copyright 2010 Nexenta Systems, Inc.  All rights reserved.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * Use is subject to license terms.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore */
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore/*
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * Function fnmatch() as specified in POSIX 1003.2-1992, section B.6.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * Compares a filename or pathname to a pattern.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore */
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore/*
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * Some notes on multibyte character support:
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * 1. Patterns with illegal byte sequences match nothing.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * 2. Illegal byte sequences in the "string" argument are handled by treating
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *    them as single-byte characters with a value of the first byte of the
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *    sequence cast to wchar_t.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * 3. Multibyte conversion state objects (mbstate_t) are passed around and
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *    used for most, but not all, conversions. Further work will be required
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *    to support state-dependent encodings.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore */
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#include "lint.h"
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#include <fnmatch.h>
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#include <limits.h>
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#include <string.h>
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#include <wchar.h>
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore#include <xlocale.h>
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#include <wctype.h>
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore#include "localeimpl.h"
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#include "collate.h"
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#define EOS '\0'
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#define RANGE_MATCH 1
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#define RANGE_NOMATCH   0
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#define RANGE_ERROR (-1)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amorestatic int rangematch(const char *, wchar_t, int, char **, mbstate_t *,
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    locale_t);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amorestatic int fnmatch1(const char *, const char *, const char *, int, mbstate_t,
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    mbstate_t, locale_t);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amoreint
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amorefnmatch(pattern, string, flags)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    const char *pattern, *string;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    int flags;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore{
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    locale_t loc = uselocale(NULL);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    static const mbstate_t initial = { 0 };
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    return (fnmatch1(pattern, string, string, flags, initial, initial,
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore        loc));
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore}
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amorestatic int
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amorefnmatch1(const char *pattern, const char *string, const char *stringstart,
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    int flags, mbstate_t patmbs, mbstate_t strmbs, locale_t loc)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore{
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    char *newp;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    char c;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    wchar_t pc, sc;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    size_t pclen, sclen;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    for (;;) {
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore        pclen = mbrtowc_l(&pc, pattern, MB_LEN_MAX, &patmbs, loc);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        if (pclen == (size_t)-1 || pclen == (size_t)-2)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            return (FNM_NOMATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        pattern += pclen;
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore        sclen = mbrtowc_l(&sc, string, MB_LEN_MAX, &strmbs, loc);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        if (sclen == (size_t)-1 || sclen == (size_t)-2) {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            sc = (unsigned char)*string;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            sclen = 1;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            (void) memset(&strmbs, 0, sizeof (strmbs));
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        switch (pc) {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        case EOS:
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            /*
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore             * Removed FNM_LEADING_DIR, as it is not present
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore             * on Solaris.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore             */
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            return (sc == EOS ? 0 : FNM_NOMATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        case '?':
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            if (sc == EOS)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                return (FNM_NOMATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            if (sc == '/' && (flags & FNM_PATHNAME))
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                return (FNM_NOMATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            if (sc == '.' && (flags & FNM_PERIOD) &&
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                (string == stringstart ||
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                return (FNM_NOMATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            string += sclen;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            break;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        case '*':
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            c = *pattern;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            /* Collapse multiple stars. */
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            while (c == '*')
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                c = *++pattern;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            if (sc == '.' && (flags & FNM_PERIOD) &&
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                (string == stringstart ||
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                return (FNM_NOMATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            /* Optimize for pattern with * at end or before /. */
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            if (c == EOS)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                if (flags & FNM_PATHNAME)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                    return (strchr(string, '/') == NULL ?
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                        0 : FNM_NOMATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                else
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                    return (0);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            else if (c == '/' && flags & FNM_PATHNAME) {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                if ((string = strchr(string, '/')) == NULL)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                    return (FNM_NOMATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                break;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            /* General case, use recursion. */
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            while (sc != EOS) {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                if (!fnmatch1(pattern, string, stringstart,
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore                    flags, patmbs, strmbs, loc))
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                    return (0);
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore                sclen = mbrtowc_l(&sc, string, MB_LEN_MAX,
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore                    &strmbs, loc);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                if (sclen == (size_t)-1 ||
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                    sclen == (size_t)-2) {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                    sc = (unsigned char)*string;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                    sclen = 1;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                    (void) memset(&strmbs, 0,
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                        sizeof (strmbs));
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                if (sc == '/' && flags & FNM_PATHNAME)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                    break;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                string += sclen;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            return (FNM_NOMATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        case '[':
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            if (sc == EOS)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                return (FNM_NOMATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            if (sc == '/' && (flags & FNM_PATHNAME))
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                return (FNM_NOMATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            if (sc == '.' && (flags & FNM_PERIOD) &&
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                (string == stringstart ||
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                return (FNM_NOMATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            switch (rangematch(pattern, sc, flags, &newp,
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore                &patmbs, loc)) {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            case RANGE_ERROR:
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                goto norm;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            case RANGE_MATCH:
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                pattern = newp;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                break;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            case RANGE_NOMATCH:
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                return (FNM_NOMATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            string += sclen;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            break;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        case '\\':
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            if (!(flags & FNM_NOESCAPE)) {
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore                pclen = mbrtowc_l(&pc, pattern, MB_LEN_MAX,
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore                    &patmbs, loc);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                if (pclen == (size_t)-1 || pclen == (size_t)-2)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                    return (FNM_NOMATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                if (pclen == 0)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                    pc = '\\';
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                pattern += pclen;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            /* FALLTHROUGH */
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        default:
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        norm:
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            if (pc == sc)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                string += sclen;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            else if ((flags & FNM_IGNORECASE) &&
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore                (towlower_l(pc, loc) == towlower_l(sc, loc)))
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                string += sclen;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            else
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                return (FNM_NOMATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            break;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    /* NOTREACHED */
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore}
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amorestatic int
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amorerangematch(const char *pattern, wchar_t test, int flags, char **newp,
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    mbstate_t *patmbs, locale_t loc)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore{
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    int negate, ok;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    wchar_t c, c2;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    size_t pclen;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    const char *origpat;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    /*
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore     * A bracket expression starting with an unquoted circumflex
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore     * character produces unspecified results (IEEE 1003.2-1992,
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore     * 3.13.2).  This implementation treats it like '!', for
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore     * consistency with the regular expression syntax.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore     * J.T. Conklin (conklin@ngai.kaleida.com)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore     */
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    if ((negate = (*pattern == '!' || *pattern == '^')) != 0)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        ++pattern;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    if (flags & FNM_IGNORECASE)
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore        test = towlower_l(test, loc);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    /*
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore     * A right bracket shall lose its special meaning and represent
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore     * itself in a bracket expression if it occurs first in the list.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore     * -- POSIX.2 2.8.3.2
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore     */
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    ok = 0;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    origpat = pattern;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    for (;;) {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        if (*pattern == ']' && pattern > origpat) {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            pattern++;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            break;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        } else if (*pattern == '\0') {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            return (RANGE_ERROR);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        } else if (*pattern == '/' && (flags & FNM_PATHNAME)) {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            return (RANGE_NOMATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        } else if (*pattern == '\\' && !(flags & FNM_NOESCAPE))
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            pattern++;
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore        pclen = mbrtowc_l(&c, pattern, MB_LEN_MAX, patmbs, loc);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        if (pclen == (size_t)-1 || pclen == (size_t)-2)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            return (RANGE_NOMATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        pattern += pclen;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        if (flags & FNM_IGNORECASE)
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore            c = towlower_l(c, loc);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        if (*pattern == '-' && *(pattern + 1) != EOS &&
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            *(pattern + 1) != ']') {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            if (*++pattern == '\\' && !(flags & FNM_NOESCAPE))
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                if (*pattern != EOS)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                    pattern++;
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore            pclen = mbrtowc_l(&c2, pattern, MB_LEN_MAX, patmbs,
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore                loc);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            if (pclen == (size_t)-1 || pclen == (size_t)-2)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                return (RANGE_NOMATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            pattern += pclen;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            if (c2 == EOS)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                return (RANGE_ERROR);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            if (flags & FNM_IGNORECASE)
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore                c2 = towlower_l(c2, loc);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore            if (loc->collate->lc_is_posix ?
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                c <= test && test <= c2 :
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore                _collate_range_cmp(c, test, loc) <= 0 &&
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore                _collate_range_cmp(test, c2, loc) <= 0)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                ok = 1;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        } else if (c == test)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            ok = 1;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    *newp = (char *)pattern;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    return (ok == negate ? RANGE_NOMATCH : RANGE_MATCH);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore}