* Makefile.in: Add fnmatch.o to DLL_OFILES.

	* cygwin.din: Add fnmatch export symbol.
	* fnmatch.c: New file.
	* include/fnmatch.h: Ditto.
	* include/cygwin/version.h: Bump API minor version to 50.

1 files changed, 230 insertions, 0 deletions

diff --git a/winsup/cygwin/libc/fnmatch.c b/winsup/cygwin/libc/fnmatch.c
new file mode 100644
index 000000000..709bc78c8
--- /dev/null
+++ b/winsup/cygwin/libc/fnmatch.c
@@ -0,0 +1,230 @@
+/*	$OpenBSD: fnmatch.c,v 1.7 2000/03/23 19:13:51 millert Exp $	*/
+
+/*
+ * Copyright (c) 1989, 1993, 1994
+ *	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)
+#if 0
+static char sccsid[] = "@(#)fnmatch.c	8.2 (Berkeley) 4/16/94";
+#else
+static char rcsid[] = "$OpenBSD: fnmatch.c,v 1.7 2000/03/23 19:13:51 millert Exp $";
+#endif
+#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.
+ */
+
+/* Just this single line added for Cygwin. */
+#include "winsup.h"
+
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+#include <fnmatch.h>
+
+#define	EOS	'\0'
+
+#define	RANGE_MATCH	1
+#define	RANGE_NOMATCH	0
+#define	RANGE_ERROR	(-1)
+
+static int rangematch __P((const char *, char, int, char **));
+
+int
+fnmatch(pattern, string, flags)
+	const char *pattern, *string;
+	int flags;
+{
+	const char *stringstart;
+	char *newp;
+	char c, test;
+
+	for (stringstart = string;;)
+		switch (c = *pattern++) {
+		case EOS:
+			if ((flags & FNM_LEADING_DIR) && *string == '/')
+				return (0);
+			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 ((flags & FNM_LEADING_DIR) ||
+					    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 (*string == '.' && (flags & FNM_PERIOD) &&
+			    (string == stringstart ||
+			    ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
+				return (FNM_NOMATCH);
+
+			switch (rangematch(pattern, *string, flags, &newp)) {
+			case RANGE_ERROR:
+				/* not a good range, treat as normal text */
+				goto normal;
+			case RANGE_MATCH:
+				pattern = newp;
+				break;
+			case RANGE_NOMATCH:
+				return (FNM_NOMATCH);
+			}
+			++string;
+			break;
+		case '\\':
+			if (!(flags & FNM_NOESCAPE)) {
+				if ((c = *pattern++) == EOS) {
+					c = '\\';
+					--pattern;
+				}
+			}
+			/* FALLTHROUGH */
+		default:
+		normal:
+			if (c != *string && !((flags & FNM_CASEFOLD) &&
+				 (tolower((unsigned char)c) ==
+				 tolower((unsigned char)*string))))
+				return (FNM_NOMATCH);
+			++string;
+			break;
+		}
+	/* NOTREACHED */
+}
+
+static int
+#ifdef __STDC__
+rangematch(const char *pattern, char test, int flags, char **newp)
+#else
+rangematch(pattern, test, flags, newp)
+	char *pattern;
+	char test;
+	int flags;
+	char **newp;
+#endif
+{
+	int negate, ok;
+	char c, c2;
+
+	/*
+	 * A bracket expression starting with an unquoted circumflex
+	 * character produces unspecified results (IEEE 1003.2-1992,
+	 * 3.13.2).  This implementation treats it like '!', for
+	 * consistency with the regular expression syntax.
+	 * J.T. Conklin (conklin@ngai.kaleida.com)
+	 */
+	if ((negate = (*pattern == '!' || *pattern == '^')))
+		++pattern;
+
+	if (flags & FNM_CASEFOLD)
+		test = tolower((unsigned char)test);
+
+	/*
+	 * A right bracket shall lose its special meaning and represent
+	 * itself in a bracket expression if it occurs first in the list.
+	 * -- POSIX.2 2.8.3.2
+	 */
+	ok = 0;
+	c = *pattern++;
+	do {
+		if (c == '\\' && !(flags & FNM_NOESCAPE))
+			c = *pattern++;
+		if (c == EOS)
+			return (RANGE_ERROR);
+		if (c == '/' && (flags & FNM_PATHNAME))
+			return (RANGE_NOMATCH);
+		if ((flags & FNM_CASEFOLD))
+			c = tolower((unsigned char)c);
+		if (*pattern == '-'
+		    && (c2 = *(pattern+1)) != EOS && c2 != ']') {
+			pattern += 2;
+			if (c2 == '\\' && !(flags & FNM_NOESCAPE))
+				c2 = *pattern++;
+			if (c2 == EOS)
+				return (RANGE_ERROR);
+			if (flags & FNM_CASEFOLD)
+				c2 = tolower((unsigned char)c2);
+			if (c <= test && test <= c2)
+				ok = 1;
+		} else if (c == test)
+			ok = 1;
+	} while ((c = *pattern++) != ']');
+
+	*newp = (char *)pattern;
+	return (ok == negate ? RANGE_NOMATCH : RANGE_MATCH);
+}