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- /* This is file FNMATCH.C */
- /* This file may have been modified by DJ Delorie (Jan 1991). If so,
- ** these modifications are Coyright (C) 1993 DJ Delorie, 24 Kirsten Ave,
- ** Rochester NH, 03867-2954, USA.
- */
-
- /*
- * Copyright (c) 1989 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 are permitted provided
- * that: (1) source distributions retain this entire copyright notice and
- * comment, and (2) distributions including binaries display the following
- * acknowledgement: ``This product includes software developed by the
- * University of California, Berkeley and its contributors'' in the
- * documentation or other materials provided with the distribution and in
- * all advertising materials mentioning features or use of this software.
- * 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- #if defined(LIBC_SCCS) && !defined(lint)
- static char sccsid[] = "@(#)fnmatch.c 5.3 (Berkeley) 6/23/90";
- #endif /* LIBC_SCCS and not lint */
-
- /*
- * Function fnmatch() as proposed in Posix 1003.2 B.6 (rev. 9).
- * Compares a filename or pathname to a pattern.
- */
-
- #include <unistd.h>
- #include <string.h>
-
- #define EOS '\0'
-
- static char *
- rangematch(pattern, test)
- register char *pattern, test;
- {
- register char c, c2;
- int negate, ok;
-
- if (negate = (*pattern == '!'))
- ++pattern;
-
- /*
- * TO DO: quoting
- */
-
- for (ok = 0; (c = *pattern++) != ']';) {
- if (c == EOS)
- return(NULL); /* illegal pattern */
- if (*pattern == '-' && (c2 = pattern[1]) != EOS && c2 != ']') {
- if (c <= test && test <= c2)
- ok = 1;
- pattern += 2;
- }
- else if (c == test)
- ok = 1;
- }
- return(ok == negate ? NULL : pattern);
- }
-
- fnmatch(pattern, string, flags)
- register char *pattern, *string;
- int flags;
- {
- register char c;
- char test, *rangematch();
-
- for (;;)
- switch (c = *pattern++) {
- case EOS:
- return(*string == EOS);
- case '?':
- if ((test = *string++) == EOS ||
- test == '/' && flags & FNM_PATHNAME)
- return(0);
- break;
- case '*':
- c = *pattern;
- /* collapse multiple stars */
- while (c == '*')
- c = *++pattern;
-
- /* optimize for pattern with * at end or before / */
- if (c == EOS)
- if (flags & FNM_PATHNAME)
- return(!index(string, '/'));
- else
- return(1);
- else if (c == '/' && flags & FNM_PATHNAME) {
- if ((string = index(string, '/')) == NULL)
- return(0);
- break;
- }
-
- /* general case, use recursion */
- while ((test = *string) != EOS) {
- if (fnmatch(pattern, string, flags))
- return(1);
- if (test == '/' && flags & FNM_PATHNAME)
- break;
- ++string;
- }
- return(0);
- case '[':
- if ((test = *string++) == EOS ||
- test == '/' && flags & FNM_PATHNAME)
- return(0);
- if ((pattern = rangematch(pattern, test)) == NULL)
- return(0);
- break;
- case '\\':
- if (flags & FNM_QUOTE) {
- if ((c = *pattern++) == EOS) {
- c = '\\';
- --pattern;
- }
- if (c != *string++)
- return(0);
- break;
- }
- /* FALLTHROUGH */
- default:
- if (c != *string++)
- return(0);
- break;
- }
- }
-