| /* Copyright (C) 1991-2020 Free Software Foundation, Inc. |
| |
| NOTE: This source is derived from an old version taken from the GNU C |
| Library (glibc). |
| |
| 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 2, 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, 51 Franklin Street - Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| #ifdef HAVE_CONFIG_H |
| #if defined (CONFIG_BROKETS) |
| /* We use <config.h> instead of "config.h" so that a compilation |
| using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h |
| (which it would do because it found this file in $srcdir). */ |
| #include <config.h> |
| #else |
| #include "config.h" |
| #endif |
| #endif |
| |
| |
| #ifndef _GNU_SOURCE |
| #define _GNU_SOURCE |
| #endif |
| |
| /* This code to undef const added in libiberty. */ |
| #ifndef __STDC__ |
| /* This is a separate conditional since some stdc systems |
| reject `defined (const)'. */ |
| #ifndef const |
| #define const |
| #endif |
| #endif |
| |
| #include <errno.h> |
| #include <fnmatch.h> |
| #include <safe-ctype.h> |
| |
| /* Comment out all this code if we are using the GNU C Library, and are not |
| actually compiling the library itself. 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__) |
| |
| |
| #if !defined(__GNU_LIBRARY__) && !defined(STDC_HEADERS) |
| extern int errno; |
| #endif |
| |
| /* Match STRING against the filename pattern PATTERN, returning zero if |
| it matches, nonzero if not. */ |
| int |
| fnmatch (const char *pattern, const char *string, int flags) |
| { |
| register const char *p = pattern, *n = string; |
| register unsigned char c; |
| |
| #define FOLD(c) ((flags & FNM_CASEFOLD) ? TOLOWER (c) : (c)) |
| |
| while ((c = *p++) != '\0') |
| { |
| c = FOLD (c); |
| |
| switch (c) |
| { |
| case '?': |
| if (*n == '\0') |
| return FNM_NOMATCH; |
| else if ((flags & FNM_FILE_NAME) && *n == '/') |
| return FNM_NOMATCH; |
| else if ((flags & FNM_PERIOD) && *n == '.' && |
| (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/'))) |
| return FNM_NOMATCH; |
| break; |
| |
| case '\\': |
| if (!(flags & FNM_NOESCAPE)) |
| { |
| c = *p++; |
| c = FOLD (c); |
| } |
| if (FOLD ((unsigned char)*n) != c) |
| return FNM_NOMATCH; |
| break; |
| |
| case '*': |
| if ((flags & FNM_PERIOD) && *n == '.' && |
| (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/'))) |
| return FNM_NOMATCH; |
| |
| for (c = *p++; c == '?' || c == '*'; c = *p++, ++n) |
| if (((flags & FNM_FILE_NAME) && *n == '/') || |
| (c == '?' && *n == '\0')) |
| return FNM_NOMATCH; |
| |
| if (c == '\0') |
| return 0; |
| |
| { |
| unsigned char c1 = (!(flags & FNM_NOESCAPE) && c == '\\') ? *p : c; |
| c1 = FOLD (c1); |
| for (--p; *n != '\0'; ++n) |
| if ((c == '[' || FOLD ((unsigned char)*n) == c1) && |
| fnmatch (p, n, flags & ~FNM_PERIOD) == 0) |
| return 0; |
| return FNM_NOMATCH; |
| } |
| |
| case '[': |
| { |
| /* Nonzero if the sense of the character class is inverted. */ |
| register int negate; |
| |
| if (*n == '\0') |
| return FNM_NOMATCH; |
| |
| if ((flags & FNM_PERIOD) && *n == '.' && |
| (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/'))) |
| return FNM_NOMATCH; |
| |
| negate = (*p == '!' || *p == '^'); |
| if (negate) |
| ++p; |
| |
| c = *p++; |
| for (;;) |
| { |
| register unsigned char cstart = c, cend = c; |
| |
| if (!(flags & FNM_NOESCAPE) && c == '\\') |
| cstart = cend = *p++; |
| |
| cstart = cend = FOLD (cstart); |
| |
| if (c == '\0') |
| /* [ (unterminated) loses. */ |
| return FNM_NOMATCH; |
| |
| c = *p++; |
| c = FOLD (c); |
| |
| if ((flags & FNM_FILE_NAME) && c == '/') |
| /* [/] can never match. */ |
| return FNM_NOMATCH; |
| |
| if (c == '-' && *p != ']') |
| { |
| cend = *p++; |
| if (!(flags & FNM_NOESCAPE) && cend == '\\') |
| cend = *p++; |
| if (cend == '\0') |
| return FNM_NOMATCH; |
| cend = FOLD (cend); |
| |
| c = *p++; |
| } |
| |
| if (FOLD ((unsigned char)*n) >= cstart |
| && FOLD ((unsigned char)*n) <= cend) |
| goto matched; |
| |
| if (c == ']') |
| break; |
| } |
| if (!negate) |
| return FNM_NOMATCH; |
| break; |
| |
| matched:; |
| /* Skip the rest of the [...] that already matched. */ |
| while (c != ']') |
| { |
| if (c == '\0') |
| /* [... (unterminated) loses. */ |
| return FNM_NOMATCH; |
| |
| c = *p++; |
| if (!(flags & FNM_NOESCAPE) && c == '\\') |
| /* XXX 1003.2d11 is unclear if this is right. */ |
| ++p; |
| } |
| if (negate) |
| return FNM_NOMATCH; |
| } |
| break; |
| |
| default: |
| if (c != FOLD ((unsigned char)*n)) |
| return FNM_NOMATCH; |
| } |
| |
| ++n; |
| } |
| |
| if (*n == '\0') |
| return 0; |
| |
| if ((flags & FNM_LEADING_DIR) && *n == '/') |
| /* The FNM_LEADING_DIR flag says that "foo*" matches "foobar/frobozz". */ |
| return 0; |
| |
| return FNM_NOMATCH; |
| } |
| |
| #endif /* _LIBC or not __GNU_LIBRARY__. */ |