From 770b7831066e9ab2f4e365d7978ce2566d799be4 Mon Sep 17 00:00:00 2001
From: "matthias.ringwald"
 <matthias.ringwald@1a0a8af8-31b5-11de-8e0c-53a27eea117e>
Date: Sun, 13 Jun 2010 13:47:23 +0000
Subject: [PATCH] clarify use of maxBytes in
 sdp_append_attributes_in_attributeIDList

---
 src/sdp_util.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/sdp_util.c b/src/sdp_util.c
index f26603071..bdef580a9 100644
--- a/src/sdp_util.c
+++ b/src/sdp_util.c
@@ -277,7 +277,7 @@ static int sdp_traversal_append_attributes(uint8_t * element, de_type_t type, de
         if (attributeIDSize == DE_SIZE_16) {
             uint16_t attributeID = READ_NET_16(element, attributeIDPos+1);
             if ( sdp_attribute_list_constains_id(context->attributeIDList, attributeID)){
-                if (context->dataSize + attributeLen <= context->maxBytes) {
+                if (3 + context->dataSize + attributeLen <= context->maxBytes) {
                     // copy Attribute
                     memcpy( context->buffer + 3 + context->dataSize, element, attributeLen);
                     context->dataSize += attributeLen;
@@ -293,10 +293,11 @@ static int sdp_traversal_append_attributes(uint8_t * element, de_type_t type, de
     return 0;
 }
 // returns index of the next attribute index to process, if not all could be passed on, -1 = all processed
+// maxBytes: maximal size of data element sequence
 int sdp_append_attributes_in_attributeIDList(uint8_t *record, uint8_t *attributeIDList, uint16_t startIndex, uint16_t maxBytes, uint8_t *buffer){
     struct sdp_context_append_attributes context;
     context.buffer = buffer;
-    context.dataSize = 0;
+    context.dataSize = READ_NET_16(buffer, 1);
     context.maxBytes = maxBytes;
     context.attributeIndex = 0;
     context.startIndex = startIndex;