2 * Copyright (c) 1989, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 #if defined(LIBC_SCCS) && !defined(lint)
38 static char sccsid[] = "@(#)fnmatch.c 8.2 (Berkeley) 4/16/94";
39 #endif /* LIBC_SCCS and not lint */
40 #include <sys/cdefs.h>
41 __FBSDID("$FreeBSD$");
44 * Function fnmatch() as specified in POSIX 1003.2-1992, section B.6.
45 * Compares a filename or pathname to a pattern.
58 #define RANGE_NOMATCH 0
59 #define RANGE_ERROR (-1)
61 static int rangematch(const char *, char, int, char **);
64 fnmatch(pattern, string, flags)
65 const char *pattern, *string;
68 const char *stringstart;
72 for (stringstart = string;;)
73 switch (c = *pattern++) {
75 if ((flags & FNM_LEADING_DIR) && *string == '/')
77 return (*string == EOS ? 0 : FNM_NOMATCH);
81 if (*string == '/' && (flags & FNM_PATHNAME))
83 if (*string == '.' && (flags & FNM_PERIOD) &&
84 (string == stringstart ||
85 ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
91 /* Collapse multiple stars. */
95 if (*string == '.' && (flags & FNM_PERIOD) &&
96 (string == stringstart ||
97 ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
100 /* Optimize for pattern with * at end or before /. */
102 if (flags & FNM_PATHNAME)
103 return ((flags & FNM_LEADING_DIR) ||
104 strchr(string, '/') == NULL ?
108 else if (c == '/' && flags & FNM_PATHNAME) {
109 if ((string = strchr(string, '/')) == NULL)
110 return (FNM_NOMATCH);
114 /* General case, use recursion. */
115 while ((test = *string) != EOS) {
116 if (!fnmatch(pattern, string, flags & ~FNM_PERIOD))
118 if (test == '/' && flags & FNM_PATHNAME)
122 return (FNM_NOMATCH);
125 return (FNM_NOMATCH);
126 if (*string == '/' && (flags & FNM_PATHNAME))
127 return (FNM_NOMATCH);
128 if (*string == '.' && (flags & FNM_PERIOD) &&
129 (string == stringstart ||
130 ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
131 return (FNM_NOMATCH);
133 switch (rangematch(pattern, *string, flags, &newp)) {
140 return (FNM_NOMATCH);
145 if (!(flags & FNM_NOESCAPE)) {
146 if ((c = *pattern++) == EOS) {
156 else if ((flags & FNM_CASEFOLD) &&
157 (tolower((unsigned char)c) ==
158 tolower((unsigned char)*string)))
161 return (FNM_NOMATCH);
169 rangematch(pattern, test, flags, newp)
179 * A bracket expression starting with an unquoted circumflex
180 * character produces unspecified results (IEEE 1003.2-1992,
181 * 3.13.2). This implementation treats it like '!', for
182 * consistency with the regular expression syntax.
183 * J.T. Conklin (conklin@ngai.kaleida.com)
185 if ( (negate = (*pattern == '!' || *pattern == '^')) )
188 if (flags & FNM_CASEFOLD)
189 test = tolower((unsigned char)test);
192 * A right bracket shall lose its special meaning and represent
193 * itself in a bracket expression if it occurs first in the list.
199 if (c == '\\' && !(flags & FNM_NOESCAPE))
202 return (RANGE_ERROR);
204 if (c == '/' && (flags & FNM_PATHNAME))
205 return (RANGE_NOMATCH);
207 if (flags & FNM_CASEFOLD)
208 c = tolower((unsigned char)c);
211 && (c2 = *(pattern+1)) != EOS && c2 != ']') {
213 if (c2 == '\\' && !(flags & FNM_NOESCAPE))
216 return (RANGE_ERROR);
218 if (flags & FNM_CASEFOLD)
219 c2 = tolower((unsigned char)c2);
221 if (__collate_load_error ?
222 c <= test && test <= c2 :
223 __collate_range_cmp(c, test) <= 0
224 && __collate_range_cmp(test, c2) <= 0
227 } else if (c == test)
229 } while ((c = *pattern++) != ']');
231 *newp = (char *)pattern;
232 return (ok == negate ? RANGE_NOMATCH : RANGE_MATCH);