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-rw-r--r--metis/ccnx/forwarder/metis/tlv/metis_TlvNameCodec.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/metis/ccnx/forwarder/metis/tlv/metis_TlvNameCodec.c b/metis/ccnx/forwarder/metis/tlv/metis_TlvNameCodec.c
new file mode 100644
index 00000000..f3847e6a
--- /dev/null
+++ b/metis/ccnx/forwarder/metis/tlv/metis_TlvNameCodec.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <config.h>
+#include <stdio.h>
+
+#include <arpa/inet.h>
+
+#include <parc/algol/parc_Memory.h>
+#include <LongBow/runtime.h>
+
+#include "metis_TlvNameCodec.h"
+#include "metis_Tlv.h"
+
+CCNxName *
+metisTlvNameCodec_Decode(uint8_t *buffer, size_t offset, size_t end)
+{
+ assertNotNull(buffer, "Parameter buffer must be non-null");
+ assertTrue(end >= offset, "Buffer must be at least 4 bytes");
+
+ CCNxName *ccnxName = ccnxName_Create();
+
+ while (offset < end) {
+ trapIllegalValueIf(end < offset + 4, "Buffer must be at least 4 bytes")
+ {
+ ccnxName_Release(&ccnxName);
+ }
+
+ MetisTlvType *tlv = (MetisTlvType *) (buffer + offset);
+ uint16_t type = htons(tlv->type);
+ uint16_t length = htons(tlv->length);
+
+ offset += sizeof(MetisTlvType);
+
+ trapIllegalValueIf(offset + length > end, "name component extends beyond end of name")
+ {
+ ccnxName_Release(&ccnxName);
+ }
+
+ PARCBuffer *nameValue = parcBuffer_Wrap(&buffer[offset], length, 0, length);
+ CCNxNameSegment *segment = ccnxNameSegment_CreateTypeValue(type, nameValue);
+ parcBuffer_Release(&nameValue);
+
+ ccnxName_Append(ccnxName, segment);
+ ccnxNameSegment_Release(&segment);
+
+ offset += length;
+ }
+
+ return ccnxName;
+}
+