Fix wrong calculation for number of elements of a data list

We must take into account that the opcode and the length of each element is
included in each PDU.

diff --git a/attrib/att.c b/attrib/att.c
index 281cd35..140e231 100644 (file)
--- a/attrib/att.c
+++ b/attrib/att.c
@@ -174,7 +174,7 @@ struct att_data_list *dec_read_by_grp_resp(const uint8_t *pdu, int len)
 
        list = malloc(sizeof(struct att_data_list));
        list->len = pdu[1];
-       list->num = len / list->len;
+       list->num = (len - 2) / list->len;
 
        list->data = malloc(sizeof(uint8_t *) * list->num);
        ptr = &pdu[2];
@@ -282,7 +282,7 @@ struct att_data_list *dec_read_by_type_resp(const uint8_t *pdu, int len)
 
        list = malloc(sizeof(struct att_data_list));
        list->len = pdu[1];
-       list->num = len / list->len;
+       list->num = (len - 2) / list->len;
 
        list->data = malloc(sizeof(uint8_t *) * list->num);
        ptr = &pdu[2];