1 files changed, 140 insertions, 0 deletions
diff --git a/libbb/check_wildcard_match.c b/libbb/check_wildcard_match.c
new file mode 100644
index 0000000..7bd3c79
--- /dev/null
+++ b/libbb/check_wildcard_match.c
@@ -0,0 +1,140 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) tons of folks.  Tracking down who wrote what
+ * isn't something I'm going to worry about...  If you wrote something
+ * here, please feel free to acknowledge your work.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Based in part on code from sash, Copyright (c) 1999 by David I. Bell 
+ * Permission has been granted to redistribute this code under the GPL.
+ *
+ */
+
+#include <stdio.h>
+#include "libbb.h"
+
+
+/*
+ * Routine to see if a text string is matched by a wildcard pattern.
+ * Returns TRUE if the text is matched, or FALSE if it is not matched
+ * or if the pattern is invalid.
+ *  *		matches zero or more characters
+ *  ?		matches a single character
+ *  [abc]	matches 'a', 'b' or 'c'
+ *  \c		quotes character c
+ * Adapted from code written by Ingo Wilken, and
+ * then taken from sash, Copyright (c) 1999 by David I. Bell
+ * Permission is granted to use, distribute, or modify this source,
+ * provided that this copyright notice remains intact.
+ * Permission to distribute this code under the GPL has been granted.
+ */
+extern int check_wildcard_match(const char *text, const char *pattern)
+{
+	const char *retryPat;
+	const char *retryText;
+	int ch;
+	int found;
+	int len;
+
+	retryPat = NULL;
+	retryText = NULL;
+
+	while (*text || *pattern) {
+		ch = *pattern++;
+
+		switch (ch) {
+		case '*':
+			retryPat = pattern;
+			retryText = text;
+			break;
+
+		case '[':
+			found = FALSE;
+
+			while ((ch = *pattern++) != ']') {
+				if (ch == '\\')
+					ch = *pattern++;
+
+				if (ch == '\0')
+					return FALSE;
+
+				if (*text == ch)
+					found = TRUE;
+			}
+			len=strlen(text);
+			if (found == FALSE && len!=0) {
+				return FALSE;
+			}
+			if (found == TRUE) {
+				if (strlen(pattern)==0 && len==1) {
+					return TRUE;
+				}
+				if (len!=0) {
+					text++;
+					continue;
+				}
+			}
+
+			/* fall into next case */
+
+		case '?':
+			if (*text++ == '\0')
+				return FALSE;
+
+			break;
+
+		case '\\':
+			ch = *pattern++;
+
+			if (ch == '\0')
+				return FALSE;
+
+			/* fall into next case */
+
+		default:
+			if (*text == ch) {
+				if (*text)
+					text++;
+				break;
+			}
+
+			if (*text) {
+				pattern = retryPat;
+				text = ++retryText;
+				break;
+			}
+
+			return FALSE;
+		}
+
+		if (pattern == NULL)
+			return FALSE;
+	}
+
+	return TRUE;
+}
+
+
+/* END CODE */
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/