1 files changed, 62 insertions, 0 deletions
diff --git a/usr.sbin/bind/lib/isc/bufferlist.c b/usr.sbin/bind/lib/isc/bufferlist.c
new file mode 100644
index 00000000000..742f88ebb9c
--- /dev/null
+++ b/usr.sbin/bind/lib/isc/bufferlist.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 1999-2001  Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
+ * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+ * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+ * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+ * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+ * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* $ISC: bufferlist.c,v 1.12 2001/01/09 21:55:57 bwelling Exp $ */
+
+#include <config.h>
+
+#include <stddef.h>
+
+#include <isc/buffer.h>
+#include <isc/bufferlist.h>
+#include <isc/util.h>
+
+unsigned int
+isc_bufferlist_usedcount(isc_bufferlist_t *bl) {
+	isc_buffer_t *buffer;
+	unsigned int length;
+
+	REQUIRE(bl != NULL);
+
+	length = 0;
+	buffer = ISC_LIST_HEAD(*bl);
+	while (buffer != NULL) {
+		REQUIRE(ISC_BUFFER_VALID(buffer));
+		length += isc_buffer_usedlength(buffer);
+		buffer = ISC_LIST_NEXT(buffer, link);
+	}
+
+	return (length);
+}
+
+unsigned int
+isc_bufferlist_availablecount(isc_bufferlist_t *bl) {
+	isc_buffer_t *buffer;
+	unsigned int length;
+
+	REQUIRE(bl != NULL);
+
+	length = 0;
+	buffer = ISC_LIST_HEAD(*bl);
+	while (buffer != NULL) {
+		REQUIRE(ISC_BUFFER_VALID(buffer));
+		length += isc_buffer_availablelength(buffer);
+		buffer = ISC_LIST_NEXT(buffer, link);
+	}
+
+	return (length);
+}