| /* Copyright (C) 1991-1993, 1996-2007, 2009-2012 Free Software Foundation, Inc. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3, or (at your option) |
| any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, see <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef _LIBC |
| # include <config.h> |
| #endif |
| |
| /* Enable GNU extensions in fnmatch.h. */ |
| #ifndef _GNU_SOURCE |
| # define _GNU_SOURCE 1 |
| #endif |
| |
| #if ! defined __builtin_expect && __GNUC__ < 3 |
| # define __builtin_expect(expr, expected) (expr) |
| #endif |
| |
| #include <fnmatch.h> |
| |
| #include <alloca.h> |
| #include <assert.h> |
| #include <ctype.h> |
| #include <errno.h> |
| #include <stddef.h> |
| #include <stdbool.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #define WIDE_CHAR_SUPPORT \ |
| (HAVE_WCTYPE_H && HAVE_BTOWC && HAVE_ISWCTYPE \ |
| && HAVE_WMEMCHR && (HAVE_WMEMCPY || HAVE_WMEMPCPY)) |
| |
| /* For platform which support the ISO C amendment 1 functionality we |
| support user defined character classes. */ |
| #if defined _LIBC || WIDE_CHAR_SUPPORT |
| # include <wctype.h> |
| # include <wchar.h> |
| #endif |
| |
| /* We need some of the locale data (the collation sequence information) |
| but there is no interface to get this information in general. Therefore |
| we support a correct implementation only in glibc. */ |
| #ifdef _LIBC |
| # include "../locale/localeinfo.h" |
| # include "../locale/elem-hash.h" |
| # include "../locale/coll-lookup.h" |
| # include <shlib-compat.h> |
| |
| # define CONCAT(a,b) __CONCAT(a,b) |
| # define mbsrtowcs __mbsrtowcs |
| # define fnmatch __fnmatch |
| extern int fnmatch (const char *pattern, const char *string, int flags); |
| #endif |
| |
| #ifndef SIZE_MAX |
| # define SIZE_MAX ((size_t) -1) |
| #endif |
| |
| /* We often have to test for FNM_FILE_NAME and FNM_PERIOD being both set. */ |
| #define NO_LEADING_PERIOD(flags) \ |
| ((flags & (FNM_FILE_NAME | FNM_PERIOD)) == (FNM_FILE_NAME | FNM_PERIOD)) |
| |
| /* Comment out all this code if we are using the GNU C Library, and are not |
| actually compiling the library itself, and have not detected a bug |
| in the library. This code is part of the GNU C |
| Library, but also included in many other GNU distributions. Compiling |
| and linking in this code is a waste when using the GNU C library |
| (especially if it is a shared library). Rather than having every GNU |
| program understand 'configure --with-gnu-libc' and omit the object files, |
| it is simpler to just do this in the source for each such file. */ |
| |
| #if defined _LIBC || !defined __GNU_LIBRARY__ || !HAVE_FNMATCH_GNU |
| |
| |
| # if ! (defined isblank || (HAVE_ISBLANK && HAVE_DECL_ISBLANK)) |
| # define isblank(c) ((c) == ' ' || (c) == '\t') |
| # endif |
| |
| # define STREQ(s1, s2) (strcmp (s1, s2) == 0) |
| |
| # if defined _LIBC || WIDE_CHAR_SUPPORT |
| /* The GNU C library provides support for user-defined character classes |
| and the functions from ISO C amendment 1. */ |
| # ifdef CHARCLASS_NAME_MAX |
| # define CHAR_CLASS_MAX_LENGTH CHARCLASS_NAME_MAX |
| # else |
| /* This shouldn't happen but some implementation might still have this |
| problem. Use a reasonable default value. */ |
| # define CHAR_CLASS_MAX_LENGTH 256 |
| # endif |
| |
| # ifdef _LIBC |
| # define IS_CHAR_CLASS(string) __wctype (string) |
| # else |
| # define IS_CHAR_CLASS(string) wctype (string) |
| # endif |
| |
| # ifdef _LIBC |
| # define ISWCTYPE(WC, WT) __iswctype (WC, WT) |
| # else |
| # define ISWCTYPE(WC, WT) iswctype (WC, WT) |
| # endif |
| |
| # if (HAVE_MBSTATE_T && HAVE_MBSRTOWCS) || _LIBC |
| /* In this case we are implementing the multibyte character handling. */ |
| # define HANDLE_MULTIBYTE 1 |
| # endif |
| |
| # else |
| # define CHAR_CLASS_MAX_LENGTH 6 /* Namely, 'xdigit'. */ |
| |
| # define IS_CHAR_CLASS(string) \ |
| (STREQ (string, "alpha") || STREQ (string, "upper") \ |
| || STREQ (string, "lower") || STREQ (string, "digit") \ |
| || STREQ (string, "alnum") || STREQ (string, "xdigit") \ |
| || STREQ (string, "space") || STREQ (string, "print") \ |
| || STREQ (string, "punct") || STREQ (string, "graph") \ |
| || STREQ (string, "cntrl") || STREQ (string, "blank")) |
| # endif |
| |
| /* Avoid depending on library functions or files |
| whose names are inconsistent. */ |
| |
| /* Global variable. */ |
| static int posixly_correct; |
| |
| # ifndef internal_function |
| /* Inside GNU libc we mark some function in a special way. In other |
| environments simply ignore the marking. */ |
| # define internal_function |
| # endif |
| |
| /* Note that this evaluates C many times. */ |
| # define FOLD(c) ((flags & FNM_CASEFOLD) ? tolower (c) : (c)) |
| # define CHAR char |
| # define UCHAR unsigned char |
| # define INT int |
| # define FCT internal_fnmatch |
| # define EXT ext_match |
| # define END end_pattern |
| # define L_(CS) CS |
| # ifdef _LIBC |
| # define BTOWC(C) __btowc (C) |
| # else |
| # define BTOWC(C) btowc (C) |
| # endif |
| # define STRLEN(S) strlen (S) |
| # define STRCAT(D, S) strcat (D, S) |
| # ifdef _LIBC |
| # define MEMPCPY(D, S, N) __mempcpy (D, S, N) |
| # else |
| # if HAVE_MEMPCPY |
| # define MEMPCPY(D, S, N) mempcpy (D, S, N) |
| # else |
| # define MEMPCPY(D, S, N) ((void *) ((char *) memcpy (D, S, N) + (N))) |
| # endif |
| # endif |
| # define MEMCHR(S, C, N) memchr (S, C, N) |
| # include "fnmatch_loop.c" |
| |
| |
| # if HANDLE_MULTIBYTE |
| # define FOLD(c) ((flags & FNM_CASEFOLD) ? towlower (c) : (c)) |
| # define CHAR wchar_t |
| # define UCHAR wint_t |
| # define INT wint_t |
| # define FCT internal_fnwmatch |
| # define EXT ext_wmatch |
| # define END end_wpattern |
| # define L_(CS) L##CS |
| # define BTOWC(C) (C) |
| # ifdef _LIBC |
| # define STRLEN(S) __wcslen (S) |
| # define STRCAT(D, S) __wcscat (D, S) |
| # define MEMPCPY(D, S, N) __wmempcpy (D, S, N) |
| # else |
| # define STRLEN(S) wcslen (S) |
| # define STRCAT(D, S) wcscat (D, S) |
| # if HAVE_WMEMPCPY |
| # define MEMPCPY(D, S, N) wmempcpy (D, S, N) |
| # else |
| # define MEMPCPY(D, S, N) (wmemcpy (D, S, N) + (N)) |
| # endif |
| # endif |
| # define MEMCHR(S, C, N) wmemchr (S, C, N) |
| # define WIDE_CHAR_VERSION 1 |
| |
| # undef IS_CHAR_CLASS |
| /* We have to convert the wide character string in a multibyte string. But |
| we know that the character class names consist of alphanumeric characters |
| from the portable character set, and since the wide character encoding |
| for a member of the portable character set is the same code point as |
| its single-byte encoding, we can use a simplified method to convert the |
| string to a multibyte character string. */ |
| static wctype_t |
| is_char_class (const wchar_t *wcs) |
| { |
| char s[CHAR_CLASS_MAX_LENGTH + 1]; |
| char *cp = s; |
| |
| do |
| { |
| /* Test for a printable character from the portable character set. */ |
| # ifdef _LIBC |
| if (*wcs < 0x20 || *wcs > 0x7e |
| || *wcs == 0x24 || *wcs == 0x40 || *wcs == 0x60) |
| return (wctype_t) 0; |
| # else |
| switch (*wcs) |
| { |
| case L' ': case L'!': case L'"': case L'#': case L'%': |
| case L'&': case L'\'': case L'(': case L')': case L'*': |
| case L'+': case L',': case L'-': case L'.': case L'/': |
| case L'0': case L'1': case L'2': case L'3': case L'4': |
| case L'5': case L'6': case L'7': case L'8': case L'9': |
| case L':': case L';': case L'<': case L'=': case L'>': |
| case L'?': |
| case L'A': case L'B': case L'C': case L'D': case L'E': |
| case L'F': case L'G': case L'H': case L'I': case L'J': |
| case L'K': case L'L': case L'M': case L'N': case L'O': |
| case L'P': case L'Q': case L'R': case L'S': case L'T': |
| case L'U': case L'V': case L'W': case L'X': case L'Y': |
| case L'Z': |
| case L'[': case L'\\': case L']': case L'^': case L'_': |
| case L'a': case L'b': case L'c': case L'd': case L'e': |
| case L'f': case L'g': case L'h': case L'i': case L'j': |
| case L'k': case L'l': case L'm': case L'n': case L'o': |
| case L'p': case L'q': case L'r': case L's': case L't': |
| case L'u': case L'v': case L'w': case L'x': case L'y': |
| case L'z': case L'{': case L'|': case L'}': case L'~': |
| break; |
| default: |
| return (wctype_t) 0; |
| } |
| # endif |
| |
| /* Avoid overrunning the buffer. */ |
| if (cp == s + CHAR_CLASS_MAX_LENGTH) |
| return (wctype_t) 0; |
| |
| *cp++ = (char) *wcs++; |
| } |
| while (*wcs != L'\0'); |
| |
| *cp = '\0'; |
| |
| # ifdef _LIBC |
| return __wctype (s); |
| # else |
| return wctype (s); |
| # endif |
| } |
| # define IS_CHAR_CLASS(string) is_char_class (string) |
| |
| # include "fnmatch_loop.c" |
| # endif |
| |
| |
| int |
| fnmatch (const char *pattern, const char *string, int flags) |
| { |
| # if HANDLE_MULTIBYTE |
| # define ALLOCA_LIMIT 2000 |
| if (__builtin_expect (MB_CUR_MAX, 1) != 1) |
| { |
| mbstate_t ps; |
| size_t patsize; |
| size_t strsize; |
| size_t totsize; |
| wchar_t *wpattern; |
| wchar_t *wstring; |
| int res; |
| |
| /* Calculate the size needed to convert the strings to |
| wide characters. */ |
| memset (&ps, '\0', sizeof (ps)); |
| patsize = mbsrtowcs (NULL, &pattern, 0, &ps) + 1; |
| if (__builtin_expect (patsize != 0, 1)) |
| { |
| assert (mbsinit (&ps)); |
| strsize = mbsrtowcs (NULL, &string, 0, &ps) + 1; |
| if (__builtin_expect (strsize != 0, 1)) |
| { |
| assert (mbsinit (&ps)); |
| totsize = patsize + strsize; |
| if (__builtin_expect (! (patsize <= totsize |
| && totsize <= SIZE_MAX / sizeof (wchar_t)), |
| 0)) |
| { |
| errno = ENOMEM; |
| return -1; |
| } |
| |
| /* Allocate room for the wide characters. */ |
| if (__builtin_expect (totsize < ALLOCA_LIMIT, 1)) |
| wpattern = (wchar_t *) alloca (totsize * sizeof (wchar_t)); |
| else |
| { |
| wpattern = malloc (totsize * sizeof (wchar_t)); |
| if (__builtin_expect (! wpattern, 0)) |
| { |
| errno = ENOMEM; |
| return -1; |
| } |
| } |
| wstring = wpattern + patsize; |
| |
| /* Convert the strings into wide characters. */ |
| mbsrtowcs (wpattern, &pattern, patsize, &ps); |
| assert (mbsinit (&ps)); |
| mbsrtowcs (wstring, &string, strsize, &ps); |
| |
| res = internal_fnwmatch (wpattern, wstring, wstring + strsize - 1, |
| flags & FNM_PERIOD, flags); |
| |
| if (__builtin_expect (! (totsize < ALLOCA_LIMIT), 0)) |
| free (wpattern); |
| return res; |
| } |
| } |
| } |
| |
| # endif /* HANDLE_MULTIBYTE */ |
| |
| return internal_fnmatch (pattern, string, string + strlen (string), |
| flags & FNM_PERIOD, flags); |
| } |
| |
| # ifdef _LIBC |
| # undef fnmatch |
| versioned_symbol (libc, __fnmatch, fnmatch, GLIBC_2_2_3); |
| # if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_2_3) |
| strong_alias (__fnmatch, __fnmatch_old) |
| compat_symbol (libc, __fnmatch_old, fnmatch, GLIBC_2_0); |
| # endif |
| libc_hidden_ver (__fnmatch, fnmatch) |
| # endif |
| |
| #endif /* _LIBC or not __GNU_LIBRARY__. */ |
