Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
221 lines
5.3 KiB
C
221 lines
5.3 KiB
C
/* Copyright (C) 1991, 1992, 1993, 1996 Free Software Foundation, Inc.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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/* Enable GNU extensions in fnmatch.h. */
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#ifndef _GNU_SOURCE
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# define _GNU_SOURCE 1
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#endif
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#include <errno.h>
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#include <fnmatch.h>
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#include <linux/ctype.h>
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/* Comment out all this code if we are using the GNU C Library, and are not
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actually compiling the library itself. This code is part of the GNU C
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Library, but also included in many other GNU distributions. Compiling
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and linking in this code is a waste when using the GNU C library
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(especially if it is a shared library). Rather than having every GNU
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program understand `configure --with-gnu-libc' and omit the object files,
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it is simpler to just do this in the source for each such file. */
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# if defined (STDC_HEADERS) || !defined (isascii)
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# define ISASCII(c) 1
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# else
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# define ISASCII(c) isascii(c)
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# endif
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# define ISUPPER(c) (ISASCII (c) && isupper (c))
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# ifndef errno
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extern int errno;
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# endif
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/* Match STRING against the filename pattern PATTERN, returning zero if
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it matches, nonzero if not. */
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int fnmatch(const char *pattern, const char *string, int flags)
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{
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register const char *p = pattern, *n = string;
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register char c;
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/* Note that this evaluates C many times. */
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# define FOLD(c) ((flags & FNM_CASEFOLD) && ISUPPER (c) ? tolower (c) : (c))
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while ((c = *p++) != '\0') {
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c = FOLD(c);
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switch (c) {
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case '?':
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if (*n == '\0')
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return FNM_NOMATCH;
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else if ((flags & FNM_FILE_NAME) && *n == '/')
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return FNM_NOMATCH;
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else if ((flags & FNM_PERIOD) && *n == '.' &&
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(n == string
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|| ((flags & FNM_FILE_NAME)
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&& n[-1] == '/'))) return FNM_NOMATCH;
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break;
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case '\\':
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if (!(flags & FNM_NOESCAPE)) {
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c = *p++;
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if (c == '\0')
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/* Trailing \ loses. */
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return FNM_NOMATCH;
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c = FOLD(c);
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}
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if (FOLD(*n) != c)
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return FNM_NOMATCH;
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break;
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case '*':
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if ((flags & FNM_PERIOD) && *n == '.' &&
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(n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
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return FNM_NOMATCH;
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for (c = *p++; c == '?' || c == '*'; c = *p++) {
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if ((flags & FNM_FILE_NAME) && *n == '/')
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/* A slash does not match a wildcard under FNM_FILE_NAME. */
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return FNM_NOMATCH;
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else if (c == '?') {
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/* A ? needs to match one character. */
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if (*n == '\0')
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/* There isn't another character; no match. */
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return FNM_NOMATCH;
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else
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/* One character of the string is consumed in matching
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this ? wildcard, so *??? won't match if there are
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less than three characters. */
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++n;
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}
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}
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if (c == '\0')
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return 0;
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{
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char c1 = (!(flags & FNM_NOESCAPE) && c == '\\') ? *p : c;
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c1 = FOLD(c1);
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for (--p; *n != '\0'; ++n)
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if ((c == '[' || FOLD(*n) == c1) &&
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fnmatch(p, n, flags & ~FNM_PERIOD) == 0)
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return 0;
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return FNM_NOMATCH;
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}
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case '[':
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{
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/* Nonzero if the sense of the character class is inverted. */
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register int not;
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if (*n == '\0')
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return FNM_NOMATCH;
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if ((flags & FNM_PERIOD) && *n == '.' &&
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(n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
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return FNM_NOMATCH;
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not = (*p == '!' || *p == '^');
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if (not)
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++p;
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c = *p++;
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for (;;) {
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register char cstart = c, cend = c;
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if (!(flags & FNM_NOESCAPE) && c == '\\') {
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if (*p == '\0')
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return FNM_NOMATCH;
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cstart = cend = *p++;
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}
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cstart = cend = FOLD(cstart);
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if (c == '\0')
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/* [ (unterminated) loses. */
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return FNM_NOMATCH;
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c = *p++;
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c = FOLD(c);
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if ((flags & FNM_FILE_NAME) && c == '/')
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/* [/] can never match. */
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return FNM_NOMATCH;
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if (c == '-' && *p != ']') {
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cend = *p++;
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if (!(flags & FNM_NOESCAPE) && cend == '\\')
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cend = *p++;
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if (cend == '\0')
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return FNM_NOMATCH;
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cend = FOLD(cend);
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c = *p++;
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}
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if (FOLD(*n) >= cstart && FOLD(*n) <= cend)
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goto matched;
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if (c == ']')
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break;
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}
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if (!not)
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return FNM_NOMATCH;
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break;
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matched:;
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/* Skip the rest of the [...] that already matched. */
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while (c != ']') {
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if (c == '\0')
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/* [... (unterminated) loses. */
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return FNM_NOMATCH;
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c = *p++;
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if (!(flags & FNM_NOESCAPE) && c == '\\') {
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if (*p == '\0')
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return FNM_NOMATCH;
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/* XXX 1003.2d11 is unclear if this is right. */
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++p;
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}
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}
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if (not)
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return FNM_NOMATCH;
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}
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break;
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default:
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if (c != FOLD(*n))
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return FNM_NOMATCH;
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}
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++n;
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}
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if (*n == '\0')
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return 0;
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if ((flags & FNM_LEADING_DIR) && *n == '/')
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/* The FNM_LEADING_DIR flag says that "foo*" matches "foobar/frobozz". */
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return 0;
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return FNM_NOMATCH;
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# undef FOLD
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}
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