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make sure allocated service record is big enough

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This commit is contained in:
matthias.ringwald 2010-06-12 10:28:04 +00:00
parent 41350e2c66
commit ba3a63451c
1 changed files with 9 additions and 8 deletions
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17
src/sdp.c
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@ -119,14 +119,12 @@ uint32_t sdp_register_service_internal(uint8_t * record){
record_handle = sdp_create_service_record_handle();
}
// calculate size of new service_record_item_t: DES (2 byte) + size of existing attributes
uint16_t recordSize = sizeof(service_record_item_t) + 3 + de_get_data_size(record);
// plus ServiceRecordHandle attribute (DES UINT16 UINT32) if not set
if (!record_handle) recordSize += 3 + 3 + 5;
// calculate size of new service record: DES (2 byte len)
// + ServiceRecordHandle attribute (DES UINT16 UINT32) + size of existing attributes
uint16_t recordSize = 3 + (3 + 3 + 5) + de_get_data_size(record);
// alloc memory for new service_record_item
service_record_item_t * newRecordItem = (service_record_item_t *) malloc(recordSize);
service_record_item_t * newRecordItem = (service_record_item_t *) malloc(recordSize + sizeof(service_record_item_t));
if (!newRecordItem) return 0;
// set new handle
@ -149,7 +147,7 @@ uint32_t sdp_register_service_internal(uint8_t * record){
// dump for now
de_dump_data_element(newRecord);
printf("calculated size %u, actual size %u\n", recordSize, de_get_len(newRecord));
printf("reserved size %u, actual size %u\n", recordSize, de_get_len(newRecord));
// add to linked list
linked_list_add(&sdp_service_records, (linked_item_t *) newRecordItem);
@ -191,6 +189,9 @@ int sdp_handle_service_search_attribute_request(uint8_t * packet){
uint8_t *attributeLists = &sdp_response_buffer[pos];
de_create_sequence(attributeLists);
// dump
de_dump_data_element(serviceSearchPattern);
// for all service records that match
linked_item_t *it;
for (it = (linked_item_t *) sdp_service_records; it ; it = it->next){