1 /* Copyright (C) 1991-1993, 1996-2007, 2009-2014 Free Software Foundation, Inc.
3 This program is free software; you can redistribute it and/or modify
4 it under the terms of the GNU General Public License as published by
5 the Free Software Foundation; either version 3, or (at your option)
8 This program is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 GNU General Public License for more details.
13 You should have received a copy of the GNU General Public License
14 along with this program; if not, see <http://www.gnu.org/licenses/>. */
20 /* Enable GNU extensions in fnmatch.h. */
22 # define _GNU_SOURCE 1
25 #if ! defined __builtin_expect && __GNUC__ < 3
26 # define __builtin_expect(expr, expected) (expr)
40 #define WIDE_CHAR_SUPPORT \
41 (HAVE_WCTYPE_H && HAVE_BTOWC && HAVE_ISWCTYPE \
42 && HAVE_WMEMCHR && (HAVE_WMEMCPY || HAVE_WMEMPCPY))
44 /* For platform which support the ISO C amendment 1 functionality we
45 support user defined character classes. */
46 #if defined _LIBC || WIDE_CHAR_SUPPORT
51 /* We need some of the locale data (the collation sequence information)
52 but there is no interface to get this information in general. Therefore
53 we support a correct implementation only in glibc. */
55 # include "../locale/localeinfo.h"
56 # include "../locale/elem-hash.h"
57 # include "../locale/coll-lookup.h"
58 # include <shlib-compat.h>
60 # define CONCAT(a,b) __CONCAT(a,b)
61 # define mbsrtowcs __mbsrtowcs
62 # define fnmatch __fnmatch
63 extern int fnmatch (const char *pattern, const char *string, int flags);
67 # define SIZE_MAX ((size_t) -1)
70 /* We often have to test for FNM_FILE_NAME and FNM_PERIOD being both set. */
71 #define NO_LEADING_PERIOD(flags) \
72 ((flags & (FNM_FILE_NAME | FNM_PERIOD)) == (FNM_FILE_NAME | FNM_PERIOD))
74 /* Comment out all this code if we are using the GNU C Library, and are not
75 actually compiling the library itself, and have not detected a bug
76 in the library. This code is part of the GNU C
77 Library, but also included in many other GNU distributions. Compiling
78 and linking in this code is a waste when using the GNU C library
79 (especially if it is a shared library). Rather than having every GNU
80 program understand 'configure --with-gnu-libc' and omit the object files,
81 it is simpler to just do this in the source for each such file. */
83 #if defined _LIBC || !defined __GNU_LIBRARY__ || !HAVE_FNMATCH_GNU
86 # if ! (defined isblank || (HAVE_ISBLANK && HAVE_DECL_ISBLANK))
87 # define isblank(c) ((c) == ' ' || (c) == '\t')
90 # define STREQ(s1, s2) (strcmp (s1, s2) == 0)
92 # if defined _LIBC || WIDE_CHAR_SUPPORT
93 /* The GNU C library provides support for user-defined character classes
94 and the functions from ISO C amendment 1. */
95 # ifdef CHARCLASS_NAME_MAX
96 # define CHAR_CLASS_MAX_LENGTH CHARCLASS_NAME_MAX
98 /* This shouldn't happen but some implementation might still have this
99 problem. Use a reasonable default value. */
100 # define CHAR_CLASS_MAX_LENGTH 256
104 # define IS_CHAR_CLASS(string) __wctype (string)
106 # define IS_CHAR_CLASS(string) wctype (string)
110 # define ISWCTYPE(WC, WT) __iswctype (WC, WT)
112 # define ISWCTYPE(WC, WT) iswctype (WC, WT)
115 # if (HAVE_MBSTATE_T && HAVE_MBSRTOWCS) || _LIBC
116 /* In this case we are implementing the multibyte character handling. */
117 # define HANDLE_MULTIBYTE 1
121 # define CHAR_CLASS_MAX_LENGTH 6 /* Namely, 'xdigit'. */
123 # define IS_CHAR_CLASS(string) \
124 (STREQ (string, "alpha") || STREQ (string, "upper") \
125 || STREQ (string, "lower") || STREQ (string, "digit") \
126 || STREQ (string, "alnum") || STREQ (string, "xdigit") \
127 || STREQ (string, "space") || STREQ (string, "print") \
128 || STREQ (string, "punct") || STREQ (string, "graph") \
129 || STREQ (string, "cntrl") || STREQ (string, "blank"))
132 /* Avoid depending on library functions or files
133 whose names are inconsistent. */
135 /* Global variable. */
136 static int posixly_correct;
138 # ifndef internal_function
139 /* Inside GNU libc we mark some function in a special way. In other
140 environments simply ignore the marking. */
141 # define internal_function
144 /* Note that this evaluates C many times. */
145 # define FOLD(c) ((flags & FNM_CASEFOLD) ? tolower (c) : (c))
147 # define UCHAR unsigned char
149 # define FCT internal_fnmatch
150 # define EXT ext_match
151 # define END end_pattern
154 # define BTOWC(C) __btowc (C)
156 # define BTOWC(C) btowc (C)
158 # define STRLEN(S) strlen (S)
159 # define STRCAT(D, S) strcat (D, S)
161 # define MEMPCPY(D, S, N) __mempcpy (D, S, N)
164 # define MEMPCPY(D, S, N) mempcpy (D, S, N)
166 # define MEMPCPY(D, S, N) ((void *) ((char *) memcpy (D, S, N) + (N)))
169 # define MEMCHR(S, C, N) memchr (S, C, N)
170 # include "fnmatch_loop.c"
173 # if HANDLE_MULTIBYTE
174 # define FOLD(c) ((flags & FNM_CASEFOLD) ? towlower (c) : (c))
175 # define CHAR wchar_t
176 # define UCHAR wint_t
178 # define FCT internal_fnwmatch
179 # define EXT ext_wmatch
180 # define END end_wpattern
181 # define L_(CS) L##CS
182 # define BTOWC(C) (C)
184 # define STRLEN(S) __wcslen (S)
185 # define STRCAT(D, S) __wcscat (D, S)
186 # define MEMPCPY(D, S, N) __wmempcpy (D, S, N)
188 # define STRLEN(S) wcslen (S)
189 # define STRCAT(D, S) wcscat (D, S)
191 # define MEMPCPY(D, S, N) wmempcpy (D, S, N)
193 # define MEMPCPY(D, S, N) (wmemcpy (D, S, N) + (N))
196 # define MEMCHR(S, C, N) wmemchr (S, C, N)
197 # define WIDE_CHAR_VERSION 1
199 # undef IS_CHAR_CLASS
200 /* We have to convert the wide character string in a multibyte string. But
201 we know that the character class names consist of alphanumeric characters
202 from the portable character set, and since the wide character encoding
203 for a member of the portable character set is the same code point as
204 its single-byte encoding, we can use a simplified method to convert the
205 string to a multibyte character string. */
207 is_char_class (const wchar_t *wcs)
209 char s[CHAR_CLASS_MAX_LENGTH + 1];
214 /* Test for a printable character from the portable character set. */
216 if (*wcs < 0x20 || *wcs > 0x7e
217 || *wcs == 0x24 || *wcs == 0x40 || *wcs == 0x60)
222 case L' ': case L'!': case L'"': case L'#': case L'%':
223 case L'&': case L'\'': case L'(': case L')': case L'*':
224 case L'+': case L',': case L'-': case L'.': case L'/':
225 case L'0': case L'1': case L'2': case L'3': case L'4':
226 case L'5': case L'6': case L'7': case L'8': case L'9':
227 case L':': case L';': case L'<': case L'=': case L'>':
229 case L'A': case L'B': case L'C': case L'D': case L'E':
230 case L'F': case L'G': case L'H': case L'I': case L'J':
231 case L'K': case L'L': case L'M': case L'N': case L'O':
232 case L'P': case L'Q': case L'R': case L'S': case L'T':
233 case L'U': case L'V': case L'W': case L'X': case L'Y':
235 case L'[': case L'\\': case L']': case L'^': case L'_':
236 case L'a': case L'b': case L'c': case L'd': case L'e':
237 case L'f': case L'g': case L'h': case L'i': case L'j':
238 case L'k': case L'l': case L'm': case L'n': case L'o':
239 case L'p': case L'q': case L'r': case L's': case L't':
240 case L'u': case L'v': case L'w': case L'x': case L'y':
241 case L'z': case L'{': case L'|': case L'}': case L'~':
248 /* Avoid overrunning the buffer. */
249 if (cp == s + CHAR_CLASS_MAX_LENGTH)
252 *cp++ = (char) *wcs++;
254 while (*wcs != L'\0');
264 # define IS_CHAR_CLASS(string) is_char_class (string)
266 # include "fnmatch_loop.c"
271 fnmatch (const char *pattern, const char *string, int flags)
273 # if HANDLE_MULTIBYTE
274 # define ALLOCA_LIMIT 2000
275 if (__builtin_expect (MB_CUR_MAX, 1) != 1)
285 /* Calculate the size needed to convert the strings to
287 memset (&ps, '\0', sizeof (ps));
288 patsize = mbsrtowcs (NULL, &pattern, 0, &ps) + 1;
289 if (__builtin_expect (patsize != 0, 1))
291 assert (mbsinit (&ps));
292 strsize = mbsrtowcs (NULL, &string, 0, &ps) + 1;
293 if (__builtin_expect (strsize != 0, 1))
295 assert (mbsinit (&ps));
296 totsize = patsize + strsize;
297 if (__builtin_expect (! (patsize <= totsize
298 && totsize <= SIZE_MAX / sizeof (wchar_t)),
305 /* Allocate room for the wide characters. */
306 if (__builtin_expect (totsize < ALLOCA_LIMIT, 1))
307 wpattern = (wchar_t *) alloca (totsize * sizeof (wchar_t));
310 wpattern = malloc (totsize * sizeof (wchar_t));
311 if (__builtin_expect (! wpattern, 0))
317 wstring = wpattern + patsize;
319 /* Convert the strings into wide characters. */
320 mbsrtowcs (wpattern, &pattern, patsize, &ps);
321 assert (mbsinit (&ps));
322 mbsrtowcs (wstring, &string, strsize, &ps);
324 res = internal_fnwmatch (wpattern, wstring, wstring + strsize - 1,
325 flags & FNM_PERIOD, flags);
327 if (__builtin_expect (! (totsize < ALLOCA_LIMIT), 0))
334 # endif /* HANDLE_MULTIBYTE */
336 return internal_fnmatch (pattern, string, string + strlen (string),
337 flags & FNM_PERIOD, flags);
342 versioned_symbol (libc, __fnmatch, fnmatch, GLIBC_2_2_3);
343 # if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_2_3)
344 strong_alias (__fnmatch, __fnmatch_old)
345 compat_symbol (libc, __fnmatch_old, fnmatch, GLIBC_2_0);
347 libc_hidden_ver (__fnmatch, fnmatch)
350 #endif /* _LIBC or not __GNU_LIBRARY__. */