fnmatch.c
上传用户:pycemail
上传日期:2007-01-04
资源大小:329k
文件大小:5k
- /* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
- This library 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
- Library General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with this library; see the file COPYING.LIB. If
- not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite
- 330, Boston, MA 02111-1307, USA. */
- /* Required to tell conf.h not to include the standard ProFTPD
- * header files
- */
- #define __PROFTPD_SUPPORT_LIBRARY
- #include <conf.h>
- #include <libsupp.h>
- #ifdef HAVE_CTYPE_H
- # include <ctype.h>
- #endif
- /* 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. */
- #undef _LIBC
- #undef __GNU_LIBRARY__
- #if defined (_LIBC) || !defined (__GNU_LIBRARY__)
- #if !defined(__GNU_LIBRARY__) && !defined(STDC_HEADERS)
- extern int errno;
- #endif
- #ifndef HAVE_FNMATCH
- /* Match STRING against the filename pattern PATTERN, returning zero if
- it matches, nonzero if not. */
- int
- fnmatch (pattern, string, flags)
- const char *pattern;
- const char *string;
- int flags;
- {
- register const char *p = pattern, *n = string;
- register char c;
- /* Note that this evalutes C many times. */
- #define FOLD(c) ((flags & FNM_CASEFOLD) && isupper (c) ? tolower (c) : (c))
- while ((c = *p++) != ' ')
- {
- c = FOLD (c);
- switch (c)
- {
- case '?':
- if (*n == ' ')
- 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 (*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 == ' '))
- return FNM_NOMATCH;
- if (c == ' ')
- return 0;
- {
- char c1 = (!(flags & FNM_NOESCAPE) && c == '\') ? *p : c;
- c1 = FOLD (c1);
- for (--p; *n != ' '; ++n)
- if ((c == '[' || FOLD (*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 not;
- if (*n == ' ')
- return FNM_NOMATCH;
- if ((flags & FNM_PERIOD) && *n == '.' &&
- (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
- return FNM_NOMATCH;
- not = (*p == '!' || *p == '^');
- if (not)
- ++p;
- c = *p++;
- for (;;)
- {
- register char cstart = c, cend = c;
- if (!(flags & FNM_NOESCAPE) && c == '\')
- cstart = cend = *p++;
- cstart = cend = FOLD (cstart);
- if (c == ' ')
- /* [ (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 == ' ')
- return FNM_NOMATCH;
- cend = FOLD (cend);
- c = *p++;
- }
- if (FOLD (*n) >= cstart && FOLD (*n) <= cend)
- goto matched;
- if (c == ']')
- break;
- }
- if (!not)
- return FNM_NOMATCH;
- break;
- matched:;
- /* Skip the rest of the [...] that already matched. */
- while (c != ']')
- {
- if (c == ' ')
- /* [... (unterminated) loses. */
- return FNM_NOMATCH;
- c = *p++;
- if (!(flags & FNM_NOESCAPE) && c == '\')
- /* XXX 1003.2d11 is unclear if this is right. */
- ++p;
- }
- if (not)
- return FNM_NOMATCH;
- }
- break;
- default:
- if (c != FOLD (*n))
- return FNM_NOMATCH;
- }
- ++n;
- }
- if (*n == ' ')
- 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 /* HAVE_FNMATCH */
- #endif /* _LIBC or not __GNU_LIBRARY__. */