more consistently use [gs]et_uint8

src/or/connection_or.c

@@ -296,7 +296,7 @@ cell_pack(packed_cell_t *dst, const cell_t *src)
 {
   char *dest = dst->body;
   set_uint16(dest, htons(src->circ_id));
-  *(uint8_t*)(dest+2) = src->command;
+  set_uint8(dest+2, src->command);
   memcpy(dest+3, src->payload, CELL_PAYLOAD_SIZE);
 }
 
@@ -307,7 +307,7 @@ static void
 cell_unpack(cell_t *dest, const char *src)
 {
   dest->circ_id = ntohs(get_uint16(src));
-  dest->command = *(uint8_t*)(src+2);
+  dest->command = get_uint8(src+2);
   memcpy(dest->payload, src+3, CELL_PAYLOAD_SIZE);
 }
 

src/or/relay.c

@@ -1231,7 +1231,7 @@ connection_edge_process_relay_cell(cell_t *cell, circuit_t *circ,
         return 0;
       }
       if (circ->n_conn) {
-        uint8_t trunc_reason = *(uint8_t*)(cell->payload + RELAY_HEADER_SIZE);
+        uint8_t trunc_reason = get_uint8(cell->payload + RELAY_HEADER_SIZE);
         circuit_clear_cell_queue(circ, circ->n_conn);
         connection_or_send_destroy(circ->n_circ_id, circ->n_conn,
                                    trunc_reason);