1 files changed, 21 insertions, 1 deletions
diff --git a/util.c b/util.c
index 97b405e3..6a7190d2 100644
--- a/util.c
+++ b/util.c
@@ -1,4 +1,4 @@
-/* $Id: util.c,v 1.1 2009-01-18 17:20:52 nicm Exp $ */
+/* $Id: util.c,v 1.2 2009-04-29 22:25:20 nicm Exp $ */
 
 /*
  * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -50,3 +50,23 @@ section_string(char *buf, size_t len, size_t sectoff, size_t sectlen)
 	    (int) (last - first), buf + first, last == len ? "" : "...");
 	return (s);
 }
+
+/* Clean string of invisible characters. */
+void
+clean_string(const char *in, char *buf, size_t len)
+{
+	const u_char	*cp;
+	size_t	 	 off;
+
+	off = 0;
+	for (cp = in; *cp != '\0'; cp++) {
+		if (off >= len)
+			break;
+		if (*cp >= 0x20 && *cp <= 0x7f)
+			buf[off++] = *cp;
+		else
+			off += xsnprintf(buf + off, len - off, "\\%03hho", *cp);
+	}
+	if (off < len)
+		buf[off] = '\0';
+}