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-rw-r--r--lib/isc/bufferlist.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/lib/isc/bufferlist.c b/lib/isc/bufferlist.c
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+++ b/lib/isc/bufferlist.c
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+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+
+/*! \file */
+
+#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);
+}