/* Copyright (C) 1991, 1992, 1993, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010 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, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef _LIBC # include #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 #include #include #include #include #include #include #include #include #define WIDE_CHAR_SUPPORT \ (HAVE_WCTYPE_H && HAVE_BTOWC && HAVE_ISWCTYPE \ && HAVE_WMEMCHR && (HAVE_WMEMCPY || HAVE_WMEMPCPY)) /* For platform which support the ISO C amendement 1 functionality we support user defined character classes. */ #if defined _LIBC || WIDE_CHAR_SUPPORT # include # include #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 # 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 amendement 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) # define STRCOLL(S1, S2) strcoll (S1, S2) # 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 STRCOLL(S1, S2) wcscoll (S1, S2) # 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 # if HAVE_ALLOCA || defined _LIBC # define ALLOCA_LIMIT 2000 # else # define ALLOCA_LIMIT 0 # endif 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__. */