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/*
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Guido van Rossum.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if defined(LIBC_SCCS) && !defined(lint)
/* from: static char sccsid[] = "@(#)fnmatch.c 8.1 (Berkeley) 6/4/93"; */
static char *rcsid = "$Id: fnmatch.c,v 1.5 1997/03/03 09:12:24 sob Exp $";
#endif /* LIBC_SCCS and not lint */
/*
* Function fnmatch() as specified in POSIX 1003.2-1992, section B.6.
* Compares a filename or pathname to a pattern.
*/
#ifdef BSD
#include <strings.h>
#else
#include <string.h>
#endif
#define FNM_NOMATCH 1 /* Match failed. */
#ifndef FNM_PATHNAME
#define FNM_PATHNAME 0x01 /* Slash must be matched by slash. */
#endif
#ifndef FNM_NOESCAPE
#define FNM_NOESCAPE 0x02 /* Disable backslash escaping. */
#endif
#ifndef FNM_PERIOD
#define FNM_PERIOD 0x04 /* Period must be matched by period. */
#endif
#define EOS '\0'
#ifdef __STDC__
static char *rangematch(char *pattern, int test, int flags)
#else
static char *
rangematch(pattern, test, flags)
register char *pattern;
register int test;
int flags;
#endif
{
register char c, c2;
int negate, ok;
/* A bracket expression starting with an unquoted circumflex
* character produces unspecified results (IEEE 1003.2-1992,
* 3.13.2). I have chosen to treat it like '!', for
* consistancy with regular expression syntax.
*/
if (negate = (*pattern == '!' || *pattern == '^')) {
pattern++;
}
for (ok = 0; (c = *pattern++) != ']';) {
if (c == '\\' && !(flags & FNM_NOESCAPE)) {
c = *pattern++;
}
if (c == EOS) {
return (NULL);
}
if (*pattern == '-'
&& (c2 = *(pattern+1)) != EOS && c2 != ']') {
pattern += 2;
if (c2 == '\\' && !(flags & FNM_NOESCAPE)) {
c2 = *pattern++;
}
if (c2 == EOS) {
return (NULL);
}
if (c <= test && test <= c2) {
ok = 1;
}
} else if (c == test) {
ok = 1;
}
}
return (ok == negate ? NULL : pattern);
}
#ifdef _STDC_
int fnmatch(char *pattern, char *string, int flags)
#else
int
fnmatch(pattern, string, flags)
register char *pattern, *string;
int flags;
#endif
{
char *stringstart = string;
register char c;
char test;
for (;;)
switch (c = *pattern++) {
case EOS:
return (*string == EOS ? 0 : FNM_NOMATCH);
case '?':
if (*string == EOS)
return (FNM_NOMATCH);
if (*string == '/' && (flags & FNM_PATHNAME))
return (FNM_NOMATCH);
if (*string == '.' && (flags & FNM_PERIOD) &&
(string == stringstart || ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
return (FNM_NOMATCH);
++string;
break;
case '*':
c = *pattern;
/* Collapse multiple stars. */
while (c == '*')
c = *++pattern;
if (*string == '.' && (flags & FNM_PERIOD) &&
(string == stringstart || ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
return (FNM_NOMATCH);
/* Optimize for pattern with * at end or before /. */
if (c == EOS)
if (flags & FNM_PATHNAME)
return (strchr(string, '/') == NULL ?
0 : FNM_NOMATCH);
else
return (0);
else if (c == '/' && flags & FNM_PATHNAME) {
if ((string = strchr(string, '/')) == NULL)
return (FNM_NOMATCH);
break;
}
/* General case, use recursion. */
while ((test = *string) != EOS) {
if (!fnmatch(pattern, string, flags & ~FNM_PERIOD))
return (0);
if (test == '/' && flags & FNM_PATHNAME)
break;
++string;
}
return (FNM_NOMATCH);
case '[':
if (*string == EOS)
return (FNM_NOMATCH);
if (*string == '/' && flags & FNM_PATHNAME)
return (FNM_NOMATCH);
if ((pattern = rangematch(pattern, *string, flags)) == NULL)
return (FNM_NOMATCH);
++string;
break;
case '\\':
if (!(flags & FNM_NOESCAPE)) {
if ((c = *pattern++) == EOS) {
c = '\\';
--pattern;
}
}
/* FALLTHROUGH */
default:
if (c != *string++)
return (FNM_NOMATCH);
break;
}
/* NOTREACHED */
}
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