| 1 | /* Copyright (C) 1991-2021 Free Software Foundation, Inc.
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| 2 | This file is part of the GNU C Library.
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| 3 |
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| 4 | The GNU C Library is free software; you can redistribute it and/or
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| 5 | modify it under the terms of the GNU Lesser General Public
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| 6 | License as published by the Free Software Foundation; either
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| 7 | version 2.1 of the License, or (at your option) any later version.
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| 8 |
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| 9 | The GNU C Library is distributed in the hope that it will be useful,
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 12 | Lesser General Public License for more details.
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| 13 |
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| 14 | You should have received a copy of the GNU Lesser General Public
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| 15 | License along with the GNU C Library; if not, see
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| 16 | <https://www.gnu.org/licenses/>. */
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| 17 |
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| 18 | #ifdef _LIBC
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| 19 | # include <stdint.h>
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| 20 | #endif
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| 21 |
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| 22 | struct STRUCT
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| 23 | {
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| 24 | const CHAR *pattern;
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| 25 | const CHAR *string;
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| 26 | bool no_leading_period;
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| 27 | };
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| 28 |
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| 29 | /* Match STRING against the file name pattern PATTERN, returning zero if
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| 30 | it matches, nonzero if not. */
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| 31 | static int FCT (const CHAR *pattern, const CHAR *string,
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| 32 | const CHAR *string_end, bool no_leading_period, int flags,
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| 33 | struct STRUCT *ends, size_t alloca_used);
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| 34 | static int EXT (INT opt, const CHAR *pattern, const CHAR *string,
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| 35 | const CHAR *string_end, bool no_leading_period, int flags,
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| 36 | size_t alloca_used);
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| 37 | static const CHAR *END (const CHAR *patternp);
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| 38 |
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| 39 | static int
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| 40 | FCT (const CHAR *pattern, const CHAR *string, const CHAR *string_end,
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| 41 | bool no_leading_period, int flags, struct STRUCT *ends, size_t alloca_used)
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| 42 | {
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| 43 | const CHAR *p = pattern, *n = string;
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| 44 | UCHAR c;
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| 45 | #ifdef _LIBC
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| 46 | # if WIDE_CHAR_VERSION
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| 47 | const char *collseq = (const char *)
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| 48 | _NL_CURRENT(LC_COLLATE, _NL_COLLATE_COLLSEQWC);
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| 49 | # else
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| 50 | const UCHAR *collseq = (const UCHAR *)
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| 51 | _NL_CURRENT(LC_COLLATE, _NL_COLLATE_COLLSEQMB);
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| 52 | # endif
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| 53 | #endif
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| 54 |
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| 55 | while ((c = *p++) != L_('\0'))
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| 56 | {
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| 57 | bool new_no_leading_period = false;
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| 58 | c = FOLD (c);
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| 59 |
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| 60 | switch (c)
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| 61 | {
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| 62 | case L_('?'):
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| 63 | if (__glibc_unlikely (flags & FNM_EXTMATCH) && *p == '(')
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| 64 | {
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| 65 | int res = EXT (c, p, n, string_end, no_leading_period,
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| 66 | flags, alloca_used);
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| 67 | if (res != -1)
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| 68 | return res;
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| 69 | }
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| 70 |
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| 71 | if (n == string_end)
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| 72 | return FNM_NOMATCH;
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| 73 | else if (*n == L_('/') && (flags & FNM_FILE_NAME))
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| 74 | return FNM_NOMATCH;
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| 75 | else if (*n == L_('.') && no_leading_period)
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| 76 | return FNM_NOMATCH;
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| 77 | break;
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| 78 |
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| 79 | case L_('\\'):
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| 80 | if (!(flags & FNM_NOESCAPE))
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| 81 | {
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| 82 | c = *p++;
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| 83 | if (c == L_('\0'))
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| 84 | /* Trailing \ loses. */
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| 85 | return FNM_NOMATCH;
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| 86 | c = FOLD (c);
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| 87 | }
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| 88 | if (n == string_end || FOLD ((UCHAR) *n) != c)
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| 89 | return FNM_NOMATCH;
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| 90 | break;
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| 91 |
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| 92 | case L_('*'):
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| 93 | if (__glibc_unlikely (flags & FNM_EXTMATCH) && *p == '(')
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| 94 | {
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| 95 | int res = EXT (c, p, n, string_end, no_leading_period,
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| 96 | flags, alloca_used);
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| 97 | if (res != -1)
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| 98 | return res;
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| 99 | }
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| 100 | else if (ends != NULL)
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| 101 | {
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| 102 | ends->pattern = p - 1;
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| 103 | ends->string = n;
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| 104 | ends->no_leading_period = no_leading_period;
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| 105 | return 0;
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| 106 | }
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| 107 |
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| 108 | if (n != string_end && *n == L_('.') && no_leading_period)
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| 109 | return FNM_NOMATCH;
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| 110 |
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| 111 | for (c = *p++; c == L_('?') || c == L_('*'); c = *p++)
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| 112 | {
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| 113 | if (*p == L_('(') && (flags & FNM_EXTMATCH) != 0)
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| 114 | {
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| 115 | const CHAR *endp = END (p);
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| 116 | if (endp != p)
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| 117 | {
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| 118 | /* This is a pattern. Skip over it. */
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| 119 | p = endp;
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| 120 | continue;
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| 121 | }
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| 122 | }
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| 123 |
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| 124 | if (c == L_('?'))
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| 125 | {
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| 126 | /* A ? needs to match one character. */
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| 127 | if (n == string_end)
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| 128 | /* There isn't another character; no match. */
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| 129 | return FNM_NOMATCH;
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| 130 | else if (*n == L_('/')
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| 131 | && __glibc_unlikely (flags & FNM_FILE_NAME))
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| 132 | /* A slash does not match a wildcard under
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| 133 | FNM_FILE_NAME. */
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| 134 | return FNM_NOMATCH;
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| 135 | else
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| 136 | /* One character of the string is consumed in matching
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| 137 | this ? wildcard, so *??? won't match if there are
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| 138 | less than three characters. */
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| 139 | ++n;
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| 140 | }
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| 141 | }
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| 142 |
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| 143 | if (c == L_('\0'))
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| 144 | /* The wildcard(s) is/are the last element of the pattern.
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| 145 | If the name is a file name and contains another slash
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| 146 | this means it cannot match, unless the FNM_LEADING_DIR
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| 147 | flag is set. */
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| 148 | {
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| 149 | int result = (flags & FNM_FILE_NAME) == 0 ? 0 : FNM_NOMATCH;
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| 150 |
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| 151 | if (flags & FNM_FILE_NAME)
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| 152 | {
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| 153 | if (flags & FNM_LEADING_DIR)
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| 154 | result = 0;
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| 155 | else
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| 156 | {
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| 157 | if (MEMCHR (n, L_('/'), string_end - n) == NULL)
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| 158 | result = 0;
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| 159 | }
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| 160 | }
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| 161 |
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| 162 | return result;
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| 163 | }
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| 164 | else
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| 165 | {
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| 166 | const CHAR *endp;
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| 167 | struct STRUCT end;
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| 168 |
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| 169 | end.pattern = NULL;
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| 170 | endp = MEMCHR (n, (flags & FNM_FILE_NAME) ? L_('/') : L_('\0'),
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| 171 | string_end - n);
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| 172 | if (endp == NULL)
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| 173 | endp = string_end;
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| 174 |
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| 175 | if (c == L_('[')
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| 176 | || (__glibc_unlikely (flags & FNM_EXTMATCH)
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| 177 | && (c == L_('@') || c == L_('+') || c == L_('!'))
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| 178 | && *p == L_('(')))
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| 179 | {
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| 180 | int flags2 = ((flags & FNM_FILE_NAME)
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| 181 | ? flags : (flags & ~FNM_PERIOD));
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| 182 |
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| 183 | for (--p; n < endp; ++n, no_leading_period = false)
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| 184 | if (FCT (p, n, string_end, no_leading_period, flags2,
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| 185 | &end, alloca_used) == 0)
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| 186 | goto found;
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| 187 | }
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| 188 | else if (c == L_('/') && (flags & FNM_FILE_NAME))
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| 189 | {
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| 190 | while (n < string_end && *n != L_('/'))
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| 191 | ++n;
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| 192 | if (n < string_end && *n == L_('/')
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| 193 | && (FCT (p, n + 1, string_end, flags & FNM_PERIOD, flags,
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| 194 | NULL, alloca_used) == 0))
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| 195 | return 0;
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| 196 | }
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| 197 | else
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| 198 | {
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| 199 | int flags2 = ((flags & FNM_FILE_NAME)
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| 200 | ? flags : (flags & ~FNM_PERIOD));
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| 201 |
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| 202 | if (c == L_('\\') && !(flags & FNM_NOESCAPE))
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| 203 | c = *p;
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| 204 | c = FOLD (c);
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| 205 | for (--p; n < endp; ++n, no_leading_period = false)
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| 206 | if (FOLD ((UCHAR) *n) == c
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| 207 | && (FCT (p, n, string_end, no_leading_period, flags2,
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| 208 | &end, alloca_used) == 0))
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| 209 | {
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| 210 | found:
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| 211 | if (end.pattern == NULL)
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| 212 | return 0;
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| 213 | break;
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| 214 | }
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| 215 | if (end.pattern != NULL)
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| 216 | {
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| 217 | p = end.pattern;
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| 218 | n = end.string;
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| 219 | no_leading_period = end.no_leading_period;
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| 220 | continue;
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| 221 | }
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| 222 | }
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| 223 | }
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| 224 |
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| 225 | /* If we come here no match is possible with the wildcard. */
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| 226 | return FNM_NOMATCH;
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| 227 |
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| 228 | case L_('['):
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| 229 | {
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| 230 | /* Nonzero if the sense of the character class is inverted. */
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| 231 | const CHAR *p_init = p;
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| 232 | const CHAR *n_init = n;
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| 233 | bool not;
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| 234 | CHAR cold;
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| 235 | UCHAR fn;
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| 236 |
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| 237 | if (posixly_correct == 0)
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| 238 | posixly_correct = getenv ("POSIXLY_CORRECT") != NULL ? 1 : -1;
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| 239 |
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| 240 | if (n == string_end)
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| 241 | return FNM_NOMATCH;
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| 242 |
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| 243 | if (*n == L_('.') && no_leading_period)
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| 244 | return FNM_NOMATCH;
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| 245 |
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| 246 | if (*n == L_('/') && (flags & FNM_FILE_NAME))
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| 247 | /* '/' cannot be matched. */
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| 248 | return FNM_NOMATCH;
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| 249 |
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| 250 | not = (*p == L_('!') || (posixly_correct < 0 && *p == L_('^')));
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| 251 | if (not)
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| 252 | ++p;
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| 253 |
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| 254 | fn = FOLD ((UCHAR) *n);
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| 255 |
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| 256 | c = *p++;
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| 257 | for (;;)
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| 258 | {
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| 259 | if (!(flags & FNM_NOESCAPE) && c == L_('\\'))
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| 260 | {
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| 261 | if (*p == L_('\0'))
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| 262 | return FNM_NOMATCH;
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| 263 | c = FOLD ((UCHAR) *p);
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| 264 | ++p;
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| 265 |
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| 266 | goto normal_bracket;
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| 267 | }
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| 268 | else if (c == L_('[') && *p == L_(':'))
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| 269 | {
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| 270 | /* Leave room for the null. */
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| 271 | CHAR str[CHAR_CLASS_MAX_LENGTH + 1];
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| 272 | size_t c1 = 0;
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| 273 | wctype_t wt;
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| 274 | const CHAR *startp = p;
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| 275 |
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| 276 | for (;;)
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| 277 | {
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| 278 | if (c1 == CHAR_CLASS_MAX_LENGTH)
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| 279 | /* The name is too long and therefore the pattern
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| 280 | is ill-formed. */
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| 281 | return FNM_NOMATCH;
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| 282 |
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| 283 | c = *++p;
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| 284 | if (c == L_(':') && p[1] == L_(']'))
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| 285 | {
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| 286 | p += 2;
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| 287 | break;
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| 288 | }
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| 289 | if (c < L_('a') || c >= L_('z'))
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| 290 | {
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| 291 | /* This cannot possibly be a character class name.
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| 292 | Match it as a normal range. */
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| 293 | p = startp;
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| 294 | c = L_('[');
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| 295 | goto normal_bracket;
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| 296 | }
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| 297 | str[c1++] = c;
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| 298 | }
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| 299 | str[c1] = L_('\0');
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| 300 |
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| 301 | wt = IS_CHAR_CLASS (str);
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| 302 | if (wt == 0)
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| 303 | /* Invalid character class name. */
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| 304 | return FNM_NOMATCH;
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| 305 |
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| 306 | #if defined _LIBC && ! WIDE_CHAR_VERSION
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| 307 | /* The following code is glibc specific but does
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| 308 | there a good job in speeding up the code since
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| 309 | we can avoid the btowc() call. */
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| 310 | if (_ISCTYPE ((UCHAR) *n, wt))
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| 311 | goto matched;
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| 312 | #else
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| 313 | if (iswctype (BTOWC ((UCHAR) *n), wt))
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| 314 | goto matched;
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| 315 | #endif
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| 316 | c = *p++;
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| 317 | }
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| 318 | #ifdef _LIBC
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| 319 | else if (c == L_('[') && *p == L_('='))
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| 320 | {
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| 321 | /* It's important that STR be a scalar variable rather
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| 322 | than a one-element array, because GCC (at least 4.9.2
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| 323 | -O2 on x86-64) can be confused by the array and
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| 324 | diagnose a "used initialized" in a dead branch in the
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| 325 | findidx function. */
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| 326 | UCHAR str;
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| 327 | uint32_t nrules =
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| 328 | _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
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| 329 | const CHAR *startp = p;
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| 330 |
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| 331 | c = *++p;
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| 332 | if (c == L_('\0'))
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| 333 | {
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| 334 | p = startp;
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| 335 | c = L_('[');
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| 336 | goto normal_bracket;
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| 337 | }
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| 338 | str = c;
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| 339 |
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| 340 | c = *++p;
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| 341 | if (c != L_('=') || p[1] != L_(']'))
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| 342 | {
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| 343 | p = startp;
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| 344 | c = L_('[');
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| 345 | goto normal_bracket;
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| 346 | }
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| 347 | p += 2;
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| 348 |
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| 349 | if (nrules == 0)
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| 350 | {
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| 351 | if ((UCHAR) *n == str)
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| 352 | goto matched;
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| 353 | }
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| 354 | else
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| 355 | {
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| 356 | const int32_t *table;
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| 357 | # if WIDE_CHAR_VERSION
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| 358 | const int32_t *weights;
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| 359 | const wint_t *extra;
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| 360 | # else
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| 361 | const unsigned char *weights;
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| 362 | const unsigned char *extra;
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| 363 | # endif
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| 364 | const int32_t *indirect;
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| 365 | int32_t idx;
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| 366 | const UCHAR *cp = (const UCHAR *) &str;
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| 367 |
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| 368 | # if WIDE_CHAR_VERSION
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| 369 | table = (const int32_t *)
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| 370 | _NL_CURRENT (LC_COLLATE, _NL_COLLATE_TABLEWC);
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| 371 | weights = (const int32_t *)
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| 372 | _NL_CURRENT (LC_COLLATE, _NL_COLLATE_WEIGHTWC);
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| 373 | extra = (const wint_t *)
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| 374 | _NL_CURRENT (LC_COLLATE, _NL_COLLATE_EXTRAWC);
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| 375 | indirect = (const int32_t *)
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| 376 | _NL_CURRENT (LC_COLLATE, _NL_COLLATE_INDIRECTWC);
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| 377 | # else
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| 378 | table = (const int32_t *)
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| 379 | _NL_CURRENT (LC_COLLATE, _NL_COLLATE_TABLEMB);
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| 380 | weights = (const unsigned char *)
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| 381 | _NL_CURRENT (LC_COLLATE, _NL_COLLATE_WEIGHTMB);
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| 382 | extra = (const unsigned char *)
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| 383 | _NL_CURRENT (LC_COLLATE, _NL_COLLATE_EXTRAMB);
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| 384 | indirect = (const int32_t *)
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| 385 | _NL_CURRENT (LC_COLLATE, _NL_COLLATE_INDIRECTMB);
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| 386 | # endif
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| 387 |
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| 388 | idx = FINDIDX (table, indirect, extra, &cp, 1);
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| 389 | if (idx != 0)
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| 390 | {
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| 391 | /* We found a table entry. Now see whether the
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| 392 | character we are currently at has the same
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| 393 | equivalence class value. */
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| 394 | int len = weights[idx & 0xffffff];
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| 395 | int32_t idx2;
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| 396 | const UCHAR *np = (const UCHAR *) n;
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| 397 |
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| 398 | idx2 = FINDIDX (table, indirect, extra,
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| 399 | &np, string_end - n);
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| 400 | if (idx2 != 0
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| 401 | && (idx >> 24) == (idx2 >> 24)
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| 402 | && len == weights[idx2 & 0xffffff])
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| 403 | {
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| 404 | int cnt = 0;
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| 405 |
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| 406 | idx &= 0xffffff;
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| 407 | idx2 &= 0xffffff;
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| 408 |
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| 409 | while (cnt < len
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| 410 | && (weights[idx + 1 + cnt]
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| 411 | == weights[idx2 + 1 + cnt]))
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| 412 | ++cnt;
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| 413 |
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| 414 | if (cnt == len)
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| 415 | goto matched;
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| 416 | }
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|---|
| 417 | }
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| 418 | }
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| 419 |
|
|---|
| 420 | c = *p++;
|
|---|
| 421 | }
|
|---|
| 422 | #endif
|
|---|
| 423 | else if (c == L_('\0'))
|
|---|
| 424 | {
|
|---|
| 425 | /* [ unterminated, treat as normal character. */
|
|---|
| 426 | p = p_init;
|
|---|
| 427 | n = n_init;
|
|---|
| 428 | c = L_('[');
|
|---|
| 429 | goto normal_match;
|
|---|
| 430 | }
|
|---|
| 431 | else
|
|---|
| 432 | {
|
|---|
| 433 | bool is_range = false;
|
|---|
| 434 |
|
|---|
| 435 | #ifdef _LIBC
|
|---|
| 436 | bool is_seqval = false;
|
|---|
| 437 |
|
|---|
| 438 | if (c == L_('[') && *p == L_('.'))
|
|---|
| 439 | {
|
|---|
| 440 | uint32_t nrules =
|
|---|
| 441 | _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
|
|---|
| 442 | const CHAR *startp = p;
|
|---|
| 443 | size_t c1 = 0;
|
|---|
| 444 |
|
|---|
| 445 | while (1)
|
|---|
| 446 | {
|
|---|
| 447 | c = *++p;
|
|---|
| 448 | if (c == L_('.') && p[1] == L_(']'))
|
|---|
| 449 | {
|
|---|
| 450 | p += 2;
|
|---|
| 451 | break;
|
|---|
| 452 | }
|
|---|
| 453 | if (c == '\0')
|
|---|
| 454 | return FNM_NOMATCH;
|
|---|
| 455 | ++c1;
|
|---|
| 456 | }
|
|---|
| 457 |
|
|---|
| 458 | /* We have to handling the symbols differently in
|
|---|
| 459 | ranges since then the collation sequence is
|
|---|
| 460 | important. */
|
|---|
| 461 | is_range = *p == L_('-') && p[1] != L_('\0');
|
|---|
| 462 |
|
|---|
| 463 | if (nrules == 0)
|
|---|
| 464 | {
|
|---|
| 465 | /* There are no names defined in the collation
|
|---|
| 466 | data. Therefore we only accept the trivial
|
|---|
| 467 | names consisting of the character itself. */
|
|---|
| 468 | if (c1 != 1)
|
|---|
| 469 | return FNM_NOMATCH;
|
|---|
| 470 |
|
|---|
| 471 | if (!is_range && *n == startp[1])
|
|---|
| 472 | goto matched;
|
|---|
| 473 |
|
|---|
| 474 | cold = startp[1];
|
|---|
| 475 | c = *p++;
|
|---|
| 476 | }
|
|---|
| 477 | else
|
|---|
| 478 | {
|
|---|
| 479 | int32_t table_size;
|
|---|
| 480 | const int32_t *symb_table;
|
|---|
| 481 | const unsigned char *extra;
|
|---|
| 482 | int32_t idx;
|
|---|
| 483 | int32_t elem;
|
|---|
| 484 | # if WIDE_CHAR_VERSION
|
|---|
| 485 | CHAR *wextra;
|
|---|
| 486 | # endif
|
|---|
| 487 |
|
|---|
| 488 | table_size =
|
|---|
| 489 | _NL_CURRENT_WORD (LC_COLLATE,
|
|---|
| 490 | _NL_COLLATE_SYMB_HASH_SIZEMB);
|
|---|
| 491 | symb_table = (const int32_t *)
|
|---|
| 492 | _NL_CURRENT (LC_COLLATE,
|
|---|
| 493 | _NL_COLLATE_SYMB_TABLEMB);
|
|---|
| 494 | extra = (const unsigned char *)
|
|---|
| 495 | _NL_CURRENT (LC_COLLATE,
|
|---|
| 496 | _NL_COLLATE_SYMB_EXTRAMB);
|
|---|
| 497 |
|
|---|
| 498 | for (elem = 0; elem < table_size; elem++)
|
|---|
| 499 | if (symb_table[2 * elem] != 0)
|
|---|
| 500 | {
|
|---|
| 501 | idx = symb_table[2 * elem + 1];
|
|---|
| 502 | /* Skip the name of collating element. */
|
|---|
| 503 | idx += 1 + extra[idx];
|
|---|
| 504 | # if WIDE_CHAR_VERSION
|
|---|
| 505 | /* Skip the byte sequence of the
|
|---|
| 506 | collating element. */
|
|---|
| 507 | idx += 1 + extra[idx];
|
|---|
| 508 | /* Adjust for the alignment. */
|
|---|
| 509 | idx = (idx + 3) & ~3;
|
|---|
| 510 |
|
|---|
| 511 | wextra = (CHAR *) &extra[idx + 4];
|
|---|
| 512 |
|
|---|
| 513 | if (/* Compare the length of the sequence. */
|
|---|
| 514 | c1 == wextra[0]
|
|---|
| 515 | /* Compare the wide char sequence. */
|
|---|
| 516 | && (__wmemcmp (startp + 1, &wextra[1],
|
|---|
| 517 | c1)
|
|---|
| 518 | == 0))
|
|---|
| 519 | /* Yep, this is the entry. */
|
|---|
| 520 | break;
|
|---|
| 521 | # else
|
|---|
| 522 | if (/* Compare the length of the sequence. */
|
|---|
| 523 | c1 == extra[idx]
|
|---|
| 524 | /* Compare the byte sequence. */
|
|---|
| 525 | && memcmp (startp + 1,
|
|---|
| 526 | &extra[idx + 1], c1) == 0)
|
|---|
| 527 | /* Yep, this is the entry. */
|
|---|
| 528 | break;
|
|---|
| 529 | # endif
|
|---|
| 530 | }
|
|---|
| 531 |
|
|---|
| 532 | if (elem < table_size)
|
|---|
| 533 | {
|
|---|
| 534 | /* Compare the byte sequence but only if
|
|---|
| 535 | this is not part of a range. */
|
|---|
| 536 | if (! is_range
|
|---|
| 537 |
|
|---|
| 538 | # if WIDE_CHAR_VERSION
|
|---|
| 539 | && __wmemcmp (n, &wextra[1], c1) == 0
|
|---|
| 540 | # else
|
|---|
| 541 | && memcmp (n, &extra[idx + 1], c1) == 0
|
|---|
| 542 | # endif
|
|---|
| 543 | )
|
|---|
| 544 | {
|
|---|
| 545 | n += c1 - 1;
|
|---|
| 546 | goto matched;
|
|---|
| 547 | }
|
|---|
| 548 |
|
|---|
| 549 | /* Get the collation sequence value. */
|
|---|
| 550 | is_seqval = true;
|
|---|
| 551 | # if WIDE_CHAR_VERSION
|
|---|
| 552 | cold = wextra[1 + wextra[0]];
|
|---|
| 553 | # else
|
|---|
| 554 | idx += 1 + extra[idx];
|
|---|
| 555 | /* Adjust for the alignment. */
|
|---|
| 556 | idx = (idx + 3) & ~3;
|
|---|
| 557 | cold = *((int32_t *) &extra[idx]);
|
|---|
| 558 | # endif
|
|---|
| 559 |
|
|---|
| 560 | c = *p++;
|
|---|
| 561 | }
|
|---|
| 562 | else if (c1 == 1)
|
|---|
| 563 | {
|
|---|
| 564 | /* No valid character. Match it as a
|
|---|
| 565 | single byte. */
|
|---|
| 566 | if (!is_range && *n == startp[1])
|
|---|
| 567 | goto matched;
|
|---|
| 568 |
|
|---|
| 569 | cold = startp[1];
|
|---|
| 570 | c = *p++;
|
|---|
| 571 | }
|
|---|
| 572 | else
|
|---|
| 573 | return FNM_NOMATCH;
|
|---|
| 574 | }
|
|---|
| 575 | }
|
|---|
| 576 | else
|
|---|
| 577 | #endif
|
|---|
| 578 | {
|
|---|
| 579 | c = FOLD (c);
|
|---|
| 580 | normal_bracket:
|
|---|
| 581 |
|
|---|
| 582 | /* We have to handling the symbols differently in
|
|---|
| 583 | ranges since then the collation sequence is
|
|---|
| 584 | important. */
|
|---|
| 585 | is_range = (*p == L_('-') && p[1] != L_('\0')
|
|---|
| 586 | && p[1] != L_(']'));
|
|---|
| 587 |
|
|---|
| 588 | if (!is_range && c == fn)
|
|---|
| 589 | goto matched;
|
|---|
| 590 |
|
|---|
| 591 | #if _LIBC
|
|---|
| 592 | /* This is needed if we goto normal_bracket; from
|
|---|
| 593 | outside of is_seqval's scope. */
|
|---|
| 594 | is_seqval = false;
|
|---|
| 595 | #endif
|
|---|
| 596 | cold = c;
|
|---|
| 597 | c = *p++;
|
|---|
| 598 | }
|
|---|
| 599 |
|
|---|
| 600 | if (c == L_('-') && *p != L_(']'))
|
|---|
| 601 | {
|
|---|
| 602 | #if _LIBC
|
|---|
| 603 | /* We have to find the collation sequence
|
|---|
| 604 | value for C. Collation sequence is nothing
|
|---|
| 605 | we can regularly access. The sequence
|
|---|
| 606 | value is defined by the order in which the
|
|---|
| 607 | definitions of the collation values for the
|
|---|
| 608 | various characters appear in the source
|
|---|
| 609 | file. A strange concept, nowhere
|
|---|
| 610 | documented. */
|
|---|
| 611 | uint32_t fcollseq;
|
|---|
| 612 | uint32_t lcollseq;
|
|---|
| 613 | UCHAR cend = *p++;
|
|---|
| 614 |
|
|---|
| 615 | # if WIDE_CHAR_VERSION
|
|---|
| 616 | /* Search in the 'names' array for the characters. */
|
|---|
| 617 | fcollseq = __collseq_table_lookup (collseq, fn);
|
|---|
| 618 | if (fcollseq == ~((uint32_t) 0))
|
|---|
| 619 | /* XXX We don't know anything about the character
|
|---|
| 620 | we are supposed to match. This means we are
|
|---|
| 621 | failing. */
|
|---|
| 622 | goto range_not_matched;
|
|---|
| 623 |
|
|---|
| 624 | if (is_seqval)
|
|---|
| 625 | lcollseq = cold;
|
|---|
| 626 | else
|
|---|
| 627 | lcollseq = __collseq_table_lookup (collseq, cold);
|
|---|
| 628 | # else
|
|---|
| 629 | fcollseq = collseq[fn];
|
|---|
| 630 | lcollseq = is_seqval ? cold : collseq[(UCHAR) cold];
|
|---|
| 631 | # endif
|
|---|
| 632 |
|
|---|
| 633 | is_seqval = false;
|
|---|
| 634 | if (cend == L_('[') && *p == L_('.'))
|
|---|
| 635 | {
|
|---|
| 636 | uint32_t nrules =
|
|---|
| 637 | _NL_CURRENT_WORD (LC_COLLATE,
|
|---|
| 638 | _NL_COLLATE_NRULES);
|
|---|
| 639 | const CHAR *startp = p;
|
|---|
| 640 | size_t c1 = 0;
|
|---|
| 641 |
|
|---|
| 642 | while (1)
|
|---|
| 643 | {
|
|---|
| 644 | c = *++p;
|
|---|
| 645 | if (c == L_('.') && p[1] == L_(']'))
|
|---|
| 646 | {
|
|---|
| 647 | p += 2;
|
|---|
| 648 | break;
|
|---|
| 649 | }
|
|---|
| 650 | if (c == '\0')
|
|---|
| 651 | return FNM_NOMATCH;
|
|---|
| 652 | ++c1;
|
|---|
| 653 | }
|
|---|
| 654 |
|
|---|
| 655 | if (nrules == 0)
|
|---|
| 656 | {
|
|---|
| 657 | /* There are no names defined in the
|
|---|
| 658 | collation data. Therefore we only
|
|---|
| 659 | accept the trivial names consisting
|
|---|
| 660 | of the character itself. */
|
|---|
| 661 | if (c1 != 1)
|
|---|
| 662 | return FNM_NOMATCH;
|
|---|
| 663 |
|
|---|
| 664 | cend = startp[1];
|
|---|
| 665 | }
|
|---|
| 666 | else
|
|---|
| 667 | {
|
|---|
| 668 | int32_t table_size;
|
|---|
| 669 | const int32_t *symb_table;
|
|---|
| 670 | const unsigned char *extra;
|
|---|
| 671 | int32_t idx;
|
|---|
| 672 | int32_t elem;
|
|---|
| 673 | # if WIDE_CHAR_VERSION
|
|---|
| 674 | CHAR *wextra;
|
|---|
| 675 | # endif
|
|---|
| 676 |
|
|---|
| 677 | table_size =
|
|---|
| 678 | _NL_CURRENT_WORD (LC_COLLATE,
|
|---|
| 679 | _NL_COLLATE_SYMB_HASH_SIZEMB);
|
|---|
| 680 | symb_table = (const int32_t *)
|
|---|
| 681 | _NL_CURRENT (LC_COLLATE,
|
|---|
| 682 | _NL_COLLATE_SYMB_TABLEMB);
|
|---|
| 683 | extra = (const unsigned char *)
|
|---|
| 684 | _NL_CURRENT (LC_COLLATE,
|
|---|
| 685 | _NL_COLLATE_SYMB_EXTRAMB);
|
|---|
| 686 |
|
|---|
| 687 | for (elem = 0; elem < table_size; elem++)
|
|---|
| 688 | if (symb_table[2 * elem] != 0)
|
|---|
| 689 | {
|
|---|
| 690 | idx = symb_table[2 * elem + 1];
|
|---|
| 691 | /* Skip the name of collating
|
|---|
| 692 | element. */
|
|---|
| 693 | idx += 1 + extra[idx];
|
|---|
| 694 | # if WIDE_CHAR_VERSION
|
|---|
| 695 | /* Skip the byte sequence of the
|
|---|
| 696 | collating element. */
|
|---|
| 697 | idx += 1 + extra[idx];
|
|---|
| 698 | /* Adjust for the alignment. */
|
|---|
| 699 | idx = (idx + 3) & ~3;
|
|---|
| 700 |
|
|---|
| 701 | wextra = (CHAR *) &extra[idx + 4];
|
|---|
| 702 |
|
|---|
| 703 | if (/* Compare the length of the
|
|---|
| 704 | sequence. */
|
|---|
| 705 | c1 == wextra[0]
|
|---|
| 706 | /* Compare the wide char sequence. */
|
|---|
| 707 | && (__wmemcmp (startp + 1,
|
|---|
| 708 | &wextra[1], c1)
|
|---|
| 709 | == 0))
|
|---|
| 710 | /* Yep, this is the entry. */
|
|---|
| 711 | break;
|
|---|
| 712 | # else
|
|---|
| 713 | if (/* Compare the length of the
|
|---|
| 714 | sequence. */
|
|---|
| 715 | c1 == extra[idx]
|
|---|
| 716 | /* Compare the byte sequence. */
|
|---|
| 717 | && memcmp (startp + 1,
|
|---|
| 718 | &extra[idx + 1], c1) == 0)
|
|---|
| 719 | /* Yep, this is the entry. */
|
|---|
| 720 | break;
|
|---|
| 721 | # endif
|
|---|
| 722 | }
|
|---|
| 723 |
|
|---|
| 724 | if (elem < table_size)
|
|---|
| 725 | {
|
|---|
| 726 | /* Get the collation sequence value. */
|
|---|
| 727 | is_seqval = true;
|
|---|
| 728 | # if WIDE_CHAR_VERSION
|
|---|
| 729 | cend = wextra[1 + wextra[0]];
|
|---|
| 730 | # else
|
|---|
| 731 | idx += 1 + extra[idx];
|
|---|
| 732 | /* Adjust for the alignment. */
|
|---|
| 733 | idx = (idx + 3) & ~3;
|
|---|
| 734 | cend = *((int32_t *) &extra[idx]);
|
|---|
| 735 | # endif
|
|---|
| 736 | }
|
|---|
| 737 | else if (c1 == 1)
|
|---|
| 738 | {
|
|---|
| 739 | cend = startp[1];
|
|---|
| 740 | c = *p++;
|
|---|
| 741 | }
|
|---|
| 742 | else
|
|---|
| 743 | return FNM_NOMATCH;
|
|---|
| 744 | }
|
|---|
| 745 | }
|
|---|
| 746 | else
|
|---|
| 747 | {
|
|---|
| 748 | if (!(flags & FNM_NOESCAPE) && cend == L_('\\'))
|
|---|
| 749 | cend = *p++;
|
|---|
| 750 | if (cend == L_('\0'))
|
|---|
| 751 | return FNM_NOMATCH;
|
|---|
| 752 | cend = FOLD (cend);
|
|---|
| 753 | }
|
|---|
| 754 |
|
|---|
| 755 | /* XXX It is not entirely clear to me how to handle
|
|---|
| 756 | characters which are not mentioned in the
|
|---|
| 757 | collation specification. */
|
|---|
| 758 | if (
|
|---|
| 759 | # if WIDE_CHAR_VERSION
|
|---|
| 760 | lcollseq == 0xffffffff ||
|
|---|
| 761 | # endif
|
|---|
| 762 | lcollseq <= fcollseq)
|
|---|
| 763 | {
|
|---|
| 764 | /* We have to look at the upper bound. */
|
|---|
| 765 | uint32_t hcollseq;
|
|---|
| 766 |
|
|---|
| 767 | if (is_seqval)
|
|---|
| 768 | hcollseq = cend;
|
|---|
| 769 | else
|
|---|
| 770 | {
|
|---|
| 771 | # if WIDE_CHAR_VERSION
|
|---|
| 772 | hcollseq =
|
|---|
| 773 | __collseq_table_lookup (collseq, cend);
|
|---|
| 774 | if (hcollseq == ~((uint32_t) 0))
|
|---|
| 775 | {
|
|---|
| 776 | /* Hum, no information about the upper
|
|---|
| 777 | bound. The matching succeeds if the
|
|---|
| 778 | lower bound is matched exactly. */
|
|---|
| 779 | if (lcollseq != fcollseq)
|
|---|
| 780 | goto range_not_matched;
|
|---|
| 781 |
|
|---|
| 782 | goto matched;
|
|---|
| 783 | }
|
|---|
| 784 | # else
|
|---|
| 785 | hcollseq = collseq[cend];
|
|---|
| 786 | # endif
|
|---|
| 787 | }
|
|---|
| 788 |
|
|---|
| 789 | if (lcollseq <= hcollseq && fcollseq <= hcollseq)
|
|---|
| 790 | goto matched;
|
|---|
| 791 | }
|
|---|
| 792 | # if WIDE_CHAR_VERSION
|
|---|
| 793 | range_not_matched:
|
|---|
| 794 | # endif
|
|---|
| 795 | #else
|
|---|
| 796 | /* We use a boring value comparison of the character
|
|---|
| 797 | values. This is better than comparing using
|
|---|
| 798 | 'strcoll' since the latter would have surprising
|
|---|
| 799 | and sometimes fatal consequences. */
|
|---|
| 800 | UCHAR cend = *p++;
|
|---|
| 801 |
|
|---|
| 802 | if (!(flags & FNM_NOESCAPE) && cend == L_('\\'))
|
|---|
| 803 | cend = *p++;
|
|---|
| 804 | if (cend == L_('\0'))
|
|---|
| 805 | return FNM_NOMATCH;
|
|---|
| 806 |
|
|---|
| 807 | /* It is a range. */
|
|---|
| 808 | if ((UCHAR) cold <= fn && fn <= cend)
|
|---|
| 809 | goto matched;
|
|---|
| 810 | #endif
|
|---|
| 811 |
|
|---|
| 812 | c = *p++;
|
|---|
| 813 | }
|
|---|
| 814 | }
|
|---|
| 815 |
|
|---|
| 816 | if (c == L_(']'))
|
|---|
| 817 | break;
|
|---|
| 818 | }
|
|---|
| 819 |
|
|---|
| 820 | if (!not)
|
|---|
| 821 | return FNM_NOMATCH;
|
|---|
| 822 | break;
|
|---|
| 823 |
|
|---|
| 824 | matched:
|
|---|
| 825 | /* Skip the rest of the [...] that already matched. */
|
|---|
| 826 | while ((c = *p++) != L_(']'))
|
|---|
| 827 | {
|
|---|
| 828 | if (c == L_('\0'))
|
|---|
| 829 | /* [... (unterminated) loses. */
|
|---|
| 830 | return FNM_NOMATCH;
|
|---|
| 831 |
|
|---|
| 832 | if (!(flags & FNM_NOESCAPE) && c == L_('\\'))
|
|---|
| 833 | {
|
|---|
| 834 | if (*p == L_('\0'))
|
|---|
| 835 | return FNM_NOMATCH;
|
|---|
| 836 | /* XXX 1003.2d11 is unclear if this is right. */
|
|---|
| 837 | ++p;
|
|---|
| 838 | }
|
|---|
| 839 | else if (c == L_('[') && *p == L_(':'))
|
|---|
| 840 | {
|
|---|
| 841 | int c1 = 0;
|
|---|
| 842 | const CHAR *startp = p;
|
|---|
| 843 |
|
|---|
| 844 | while (1)
|
|---|
| 845 | {
|
|---|
| 846 | c = *++p;
|
|---|
| 847 | if (++c1 == CHAR_CLASS_MAX_LENGTH)
|
|---|
| 848 | return FNM_NOMATCH;
|
|---|
| 849 |
|
|---|
| 850 | if (*p == L_(':') && p[1] == L_(']'))
|
|---|
| 851 | break;
|
|---|
| 852 |
|
|---|
| 853 | if (c < L_('a') || c >= L_('z'))
|
|---|
| 854 | {
|
|---|
| 855 | p = startp - 2;
|
|---|
| 856 | break;
|
|---|
| 857 | }
|
|---|
| 858 | }
|
|---|
| 859 | p += 2;
|
|---|
| 860 | }
|
|---|
| 861 | else if (c == L_('[') && *p == L_('='))
|
|---|
| 862 | {
|
|---|
| 863 | c = *++p;
|
|---|
| 864 | if (c == L_('\0'))
|
|---|
| 865 | return FNM_NOMATCH;
|
|---|
| 866 | c = *++p;
|
|---|
| 867 | if (c != L_('=') || p[1] != L_(']'))
|
|---|
| 868 | return FNM_NOMATCH;
|
|---|
| 869 | p += 2;
|
|---|
| 870 | }
|
|---|
| 871 | else if (c == L_('[') && *p == L_('.'))
|
|---|
| 872 | {
|
|---|
| 873 | while (1)
|
|---|
| 874 | {
|
|---|
| 875 | c = *++p;
|
|---|
| 876 | if (c == L_('\0'))
|
|---|
| 877 | return FNM_NOMATCH;
|
|---|
| 878 |
|
|---|
| 879 | if (c == L_('.') && p[1] == L_(']'))
|
|---|
| 880 | break;
|
|---|
| 881 | }
|
|---|
| 882 | p += 2;
|
|---|
| 883 | }
|
|---|
| 884 | }
|
|---|
| 885 | if (not)
|
|---|
| 886 | return FNM_NOMATCH;
|
|---|
| 887 | }
|
|---|
| 888 | break;
|
|---|
| 889 |
|
|---|
| 890 | case L_('+'):
|
|---|
| 891 | case L_('@'):
|
|---|
| 892 | case L_('!'):
|
|---|
| 893 | if (__glibc_unlikely (flags & FNM_EXTMATCH) && *p == '(')
|
|---|
| 894 | {
|
|---|
| 895 | int res = EXT (c, p, n, string_end, no_leading_period, flags,
|
|---|
| 896 | alloca_used);
|
|---|
| 897 | if (res != -1)
|
|---|
| 898 | return res;
|
|---|
| 899 | }
|
|---|
| 900 | goto normal_match;
|
|---|
| 901 |
|
|---|
| 902 | case L_('/'):
|
|---|
| 903 | if (NO_LEADING_PERIOD (flags))
|
|---|
| 904 | {
|
|---|
| 905 | if (n == string_end || c != (UCHAR) *n)
|
|---|
| 906 | return FNM_NOMATCH;
|
|---|
| 907 |
|
|---|
| 908 | new_no_leading_period = true;
|
|---|
| 909 | break;
|
|---|
| 910 | }
|
|---|
| 911 | FALLTHROUGH;
|
|---|
| 912 | default:
|
|---|
| 913 | normal_match:
|
|---|
| 914 | if (n == string_end || c != FOLD ((UCHAR) *n))
|
|---|
| 915 | return FNM_NOMATCH;
|
|---|
| 916 | }
|
|---|
| 917 |
|
|---|
| 918 | no_leading_period = new_no_leading_period;
|
|---|
| 919 | ++n;
|
|---|
| 920 | }
|
|---|
| 921 |
|
|---|
| 922 | if (n == string_end)
|
|---|
| 923 | return 0;
|
|---|
| 924 |
|
|---|
| 925 | if ((flags & FNM_LEADING_DIR) && n != string_end && *n == L_('/'))
|
|---|
| 926 | /* The FNM_LEADING_DIR flag says that "foo*" matches "foobar/frobozz". */
|
|---|
| 927 | return 0;
|
|---|
| 928 |
|
|---|
| 929 | return FNM_NOMATCH;
|
|---|
| 930 | }
|
|---|
| 931 |
|
|---|
| 932 |
|
|---|
| 933 | static const CHAR *
|
|---|
| 934 | END (const CHAR *pattern)
|
|---|
| 935 | {
|
|---|
| 936 | const CHAR *p = pattern;
|
|---|
| 937 |
|
|---|
| 938 | while (1)
|
|---|
| 939 | if (*++p == L_('\0'))
|
|---|
| 940 | /* This is an invalid pattern. */
|
|---|
| 941 | return pattern;
|
|---|
| 942 | else if (*p == L_('['))
|
|---|
| 943 | {
|
|---|
| 944 | /* Handle brackets special. */
|
|---|
| 945 | if (posixly_correct == 0)
|
|---|
| 946 | posixly_correct = getenv ("POSIXLY_CORRECT") != NULL ? 1 : -1;
|
|---|
| 947 |
|
|---|
| 948 | /* Skip the not sign. We have to recognize it because of a possibly
|
|---|
| 949 | following ']'. */
|
|---|
| 950 | if (*++p == L_('!') || (posixly_correct < 0 && *p == L_('^')))
|
|---|
| 951 | ++p;
|
|---|
| 952 | /* A leading ']' is recognized as such. */
|
|---|
| 953 | if (*p == L_(']'))
|
|---|
| 954 | ++p;
|
|---|
| 955 | /* Skip over all characters of the list. */
|
|---|
| 956 | while (*p != L_(']'))
|
|---|
| 957 | if (*p++ == L_('\0'))
|
|---|
| 958 | /* This is no valid pattern. */
|
|---|
| 959 | return pattern;
|
|---|
| 960 | }
|
|---|
| 961 | else if ((*p == L_('?') || *p == L_('*') || *p == L_('+') || *p == L_('@')
|
|---|
| 962 | || *p == L_('!')) && p[1] == L_('('))
|
|---|
| 963 | {
|
|---|
| 964 | p = END (p + 1);
|
|---|
| 965 | if (*p == L_('\0'))
|
|---|
| 966 | /* This is an invalid pattern. */
|
|---|
| 967 | return pattern;
|
|---|
| 968 | }
|
|---|
| 969 | else if (*p == L_(')'))
|
|---|
| 970 | break;
|
|---|
| 971 |
|
|---|
| 972 | return p + 1;
|
|---|
| 973 | }
|
|---|
| 974 |
|
|---|
| 975 |
|
|---|
| 976 | static int
|
|---|
| 977 | EXT (INT opt, const CHAR *pattern, const CHAR *string, const CHAR *string_end,
|
|---|
| 978 | bool no_leading_period, int flags, size_t alloca_used)
|
|---|
| 979 | {
|
|---|
| 980 | const CHAR *startp;
|
|---|
| 981 | ptrdiff_t level;
|
|---|
| 982 | struct patternlist
|
|---|
| 983 | {
|
|---|
| 984 | struct patternlist *next;
|
|---|
| 985 | CHAR malloced;
|
|---|
| 986 | CHAR str __flexarr;
|
|---|
| 987 | } *list = NULL;
|
|---|
| 988 | struct patternlist **lastp = &list;
|
|---|
| 989 | size_t pattern_len = STRLEN (pattern);
|
|---|
| 990 | bool any_malloced = false;
|
|---|
| 991 | const CHAR *p;
|
|---|
| 992 | const CHAR *rs;
|
|---|
| 993 | int retval = 0;
|
|---|
| 994 |
|
|---|
| 995 | /* Parse the pattern. Store the individual parts in the list. */
|
|---|
| 996 | level = 0;
|
|---|
| 997 | for (startp = p = pattern + 1; level >= 0; ++p)
|
|---|
| 998 | if (*p == L_('\0'))
|
|---|
| 999 | {
|
|---|
| 1000 | /* This is an invalid pattern. */
|
|---|
| 1001 | retval = -1;
|
|---|
| 1002 | goto out;
|
|---|
| 1003 | }
|
|---|
| 1004 | else if (*p == L_('['))
|
|---|
| 1005 | {
|
|---|
| 1006 | /* Handle brackets special. */
|
|---|
| 1007 | if (posixly_correct == 0)
|
|---|
| 1008 | posixly_correct = getenv ("POSIXLY_CORRECT") != NULL ? 1 : -1;
|
|---|
| 1009 |
|
|---|
| 1010 | /* Skip the not sign. We have to recognize it because of a possibly
|
|---|
| 1011 | following ']'. */
|
|---|
| 1012 | if (*++p == L_('!') || (posixly_correct < 0 && *p == L_('^')))
|
|---|
| 1013 | ++p;
|
|---|
| 1014 | /* A leading ']' is recognized as such. */
|
|---|
| 1015 | if (*p == L_(']'))
|
|---|
| 1016 | ++p;
|
|---|
| 1017 | /* Skip over all characters of the list. */
|
|---|
| 1018 | while (*p != L_(']'))
|
|---|
| 1019 | if (*p++ == L_('\0'))
|
|---|
| 1020 | {
|
|---|
| 1021 | /* This is no valid pattern. */
|
|---|
| 1022 | retval = -1;
|
|---|
| 1023 | goto out;
|
|---|
| 1024 | }
|
|---|
| 1025 | }
|
|---|
| 1026 | else if ((*p == L_('?') || *p == L_('*') || *p == L_('+') || *p == L_('@')
|
|---|
| 1027 | || *p == L_('!')) && p[1] == L_('('))
|
|---|
| 1028 | /* Remember the nesting level. */
|
|---|
| 1029 | ++level;
|
|---|
| 1030 | else if (*p == L_(')'))
|
|---|
| 1031 | {
|
|---|
| 1032 | if (level-- == 0)
|
|---|
| 1033 | {
|
|---|
| 1034 | /* This means we found the end of the pattern. */
|
|---|
| 1035 | #define NEW_PATTERN \
|
|---|
| 1036 | struct patternlist *newp; \
|
|---|
| 1037 | size_t plen = (opt == L_('?') || opt == L_('@') \
|
|---|
| 1038 | ? pattern_len : (p - startp + 1UL)); \
|
|---|
| 1039 | idx_t slen = FLEXSIZEOF (struct patternlist, str, 0); \
|
|---|
| 1040 | idx_t new_used = alloca_used + slen; \
|
|---|
| 1041 | idx_t plensize; \
|
|---|
| 1042 | if (INT_MULTIPLY_WRAPV (plen, sizeof (CHAR), &plensize) \
|
|---|
| 1043 | || INT_ADD_WRAPV (new_used, plensize, &new_used)) \
|
|---|
| 1044 | { \
|
|---|
| 1045 | retval = -2; \
|
|---|
| 1046 | goto out; \
|
|---|
| 1047 | } \
|
|---|
| 1048 | slen += plensize; \
|
|---|
| 1049 | bool malloced = ! __libc_use_alloca (new_used); \
|
|---|
| 1050 | if (__glibc_unlikely (malloced)) \
|
|---|
| 1051 | { \
|
|---|
| 1052 | newp = malloc (slen); \
|
|---|
| 1053 | if (newp == NULL) \
|
|---|
| 1054 | { \
|
|---|
| 1055 | retval = -2; \
|
|---|
| 1056 | goto out; \
|
|---|
| 1057 | } \
|
|---|
| 1058 | any_malloced = true; \
|
|---|
| 1059 | } \
|
|---|
| 1060 | else \
|
|---|
| 1061 | newp = alloca_account (slen, alloca_used); \
|
|---|
| 1062 | newp->next = NULL; \
|
|---|
| 1063 | newp->malloced = malloced; \
|
|---|
| 1064 | *((CHAR *) MEMPCPY (newp->str, startp, p - startp)) = L_('\0'); \
|
|---|
| 1065 | *lastp = newp; \
|
|---|
| 1066 | lastp = &newp->next
|
|---|
| 1067 | NEW_PATTERN;
|
|---|
| 1068 | }
|
|---|
| 1069 | }
|
|---|
| 1070 | else if (*p == L_('|'))
|
|---|
| 1071 | {
|
|---|
| 1072 | if (level == 0)
|
|---|
| 1073 | {
|
|---|
| 1074 | NEW_PATTERN;
|
|---|
| 1075 | startp = p + 1;
|
|---|
| 1076 | }
|
|---|
| 1077 | }
|
|---|
| 1078 | assert (list != NULL);
|
|---|
| 1079 | assert (p[-1] == L_(')'));
|
|---|
| 1080 | #undef NEW_PATTERN
|
|---|
| 1081 |
|
|---|
| 1082 | switch (opt)
|
|---|
| 1083 | {
|
|---|
| 1084 | case L_('*'):
|
|---|
| 1085 | if (FCT (p, string, string_end, no_leading_period, flags, NULL,
|
|---|
| 1086 | alloca_used) == 0)
|
|---|
| 1087 | goto success;
|
|---|
| 1088 | FALLTHROUGH;
|
|---|
| 1089 | case L_('+'):
|
|---|
| 1090 | do
|
|---|
| 1091 | {
|
|---|
| 1092 | for (rs = string; rs <= string_end; ++rs)
|
|---|
| 1093 | /* First match the prefix with the current pattern with the
|
|---|
| 1094 | current pattern. */
|
|---|
| 1095 | if (FCT (list->str, string, rs, no_leading_period,
|
|---|
| 1096 | flags & FNM_FILE_NAME ? flags : flags & ~FNM_PERIOD,
|
|---|
| 1097 | NULL, alloca_used) == 0
|
|---|
| 1098 | /* This was successful. Now match the rest with the rest
|
|---|
| 1099 | of the pattern. */
|
|---|
| 1100 | && (FCT (p, rs, string_end,
|
|---|
| 1101 | rs == string
|
|---|
| 1102 | ? no_leading_period
|
|---|
| 1103 | : rs[-1] == '/' && NO_LEADING_PERIOD (flags),
|
|---|
| 1104 | flags & FNM_FILE_NAME
|
|---|
| 1105 | ? flags : flags & ~FNM_PERIOD, NULL, alloca_used) == 0
|
|---|
| 1106 | /* This didn't work. Try the whole pattern. */
|
|---|
| 1107 | || (rs != string
|
|---|
| 1108 | && FCT (pattern - 1, rs, string_end,
|
|---|
| 1109 | rs == string
|
|---|
| 1110 | ? no_leading_period
|
|---|
| 1111 | : rs[-1] == '/' && NO_LEADING_PERIOD (flags),
|
|---|
| 1112 | flags & FNM_FILE_NAME
|
|---|
| 1113 | ? flags : flags & ~FNM_PERIOD, NULL,
|
|---|
| 1114 | alloca_used) == 0)))
|
|---|
| 1115 | /* It worked. Signal success. */
|
|---|
| 1116 | goto success;
|
|---|
| 1117 | }
|
|---|
| 1118 | while ((list = list->next) != NULL);
|
|---|
| 1119 |
|
|---|
| 1120 | /* None of the patterns lead to a match. */
|
|---|
| 1121 | retval = FNM_NOMATCH;
|
|---|
| 1122 | break;
|
|---|
| 1123 |
|
|---|
| 1124 | case L_('?'):
|
|---|
| 1125 | if (FCT (p, string, string_end, no_leading_period, flags, NULL,
|
|---|
| 1126 | alloca_used) == 0)
|
|---|
| 1127 | goto success;
|
|---|
| 1128 | FALLTHROUGH;
|
|---|
| 1129 | case L_('@'):
|
|---|
| 1130 | do
|
|---|
| 1131 | /* I cannot believe it but 'strcat' is actually acceptable
|
|---|
| 1132 | here. Match the entire string with the prefix from the
|
|---|
| 1133 | pattern list and the rest of the pattern following the
|
|---|
| 1134 | pattern list. */
|
|---|
| 1135 | if (FCT (STRCAT (list->str, p), string, string_end,
|
|---|
| 1136 | no_leading_period,
|
|---|
| 1137 | flags & FNM_FILE_NAME ? flags : flags & ~FNM_PERIOD,
|
|---|
| 1138 | NULL, alloca_used) == 0)
|
|---|
| 1139 | /* It worked. Signal success. */
|
|---|
| 1140 | goto success;
|
|---|
| 1141 | while ((list = list->next) != NULL);
|
|---|
| 1142 |
|
|---|
| 1143 | /* None of the patterns lead to a match. */
|
|---|
| 1144 | retval = FNM_NOMATCH;
|
|---|
| 1145 | break;
|
|---|
| 1146 |
|
|---|
| 1147 | case L_('!'):
|
|---|
| 1148 | for (rs = string; rs <= string_end; ++rs)
|
|---|
| 1149 | {
|
|---|
| 1150 | struct patternlist *runp;
|
|---|
| 1151 |
|
|---|
| 1152 | for (runp = list; runp != NULL; runp = runp->next)
|
|---|
| 1153 | if (FCT (runp->str, string, rs, no_leading_period,
|
|---|
| 1154 | flags & FNM_FILE_NAME ? flags : flags & ~FNM_PERIOD,
|
|---|
| 1155 | NULL, alloca_used) == 0)
|
|---|
| 1156 | break;
|
|---|
| 1157 |
|
|---|
| 1158 | /* If none of the patterns matched see whether the rest does. */
|
|---|
| 1159 | if (runp == NULL
|
|---|
| 1160 | && (FCT (p, rs, string_end,
|
|---|
| 1161 | rs == string
|
|---|
| 1162 | ? no_leading_period
|
|---|
| 1163 | : rs[-1] == '/' && NO_LEADING_PERIOD (flags),
|
|---|
| 1164 | flags & FNM_FILE_NAME ? flags : flags & ~FNM_PERIOD,
|
|---|
| 1165 | NULL, alloca_used) == 0))
|
|---|
| 1166 | /* This is successful. */
|
|---|
| 1167 | goto success;
|
|---|
| 1168 | }
|
|---|
| 1169 |
|
|---|
| 1170 | /* None of the patterns together with the rest of the pattern
|
|---|
| 1171 | lead to a match. */
|
|---|
| 1172 | retval = FNM_NOMATCH;
|
|---|
| 1173 | break;
|
|---|
| 1174 |
|
|---|
| 1175 | default:
|
|---|
| 1176 | assert (! "Invalid extended matching operator");
|
|---|
| 1177 | retval = -1;
|
|---|
| 1178 | break;
|
|---|
| 1179 | }
|
|---|
| 1180 |
|
|---|
| 1181 | success:
|
|---|
| 1182 | out:
|
|---|
| 1183 | if (any_malloced)
|
|---|
| 1184 | while (list != NULL)
|
|---|
| 1185 | {
|
|---|
| 1186 | struct patternlist *old = list;
|
|---|
| 1187 | list = list->next;
|
|---|
| 1188 | if (old->malloced)
|
|---|
| 1189 | free (old);
|
|---|
| 1190 | }
|
|---|
| 1191 |
|
|---|
| 1192 | return retval;
|
|---|
| 1193 | }
|
|---|
| 1194 |
|
|---|
| 1195 |
|
|---|
| 1196 | #undef FOLD
|
|---|
| 1197 | #undef CHAR
|
|---|
| 1198 | #undef UCHAR
|
|---|
| 1199 | #undef INT
|
|---|
| 1200 | #undef FCT
|
|---|
| 1201 | #undef EXT
|
|---|
| 1202 | #undef END
|
|---|
| 1203 | #undef STRUCT
|
|---|
| 1204 | #undef MEMPCPY
|
|---|
| 1205 | #undef MEMCHR
|
|---|
| 1206 | #undef STRLEN
|
|---|
| 1207 | #undef STRCAT
|
|---|
| 1208 | #undef L_
|
|---|
| 1209 | #undef BTOWC
|
|---|
| 1210 | #undef WIDE_CHAR_VERSION
|
|---|
| 1211 | #undef FINDIDX
|
|---|