Merge pull request #465 from LudwigOrtmann/nativenet_send_return

Nativenet send return

cpu/native/include/nativenet_internal.h

@@ -40,4 +40,5 @@ struct rx_buffer_s {
 extern struct rx_buffer_s _nativenet_rx_buffer[RX_BUF_SIZE];
 
 void _nativenet_handle_packet(radio_packet_t *packet);
+int8_t send_buf(radio_packet_t *packet);
 #endif /* NATIVENET_INTERNAL_H */

cpu/native/include/tap.h

@@ -31,7 +31,6 @@
  * On OSX a name has to be provided.
  */
 int tap_init(char *name);
-int send_buf(radio_packet_t *packet);
 
 extern int _native_tap_fd;
 extern unsigned char _native_tap_mac[ETHER_ADDR_LEN];

cpu/native/net/tap.c

@@ -162,7 +162,7 @@ int _native_marshall_ethernet(uint8_t *framebuf, radio_packet_t *packet)
     return data_len + ETHER_HDR_LEN;
 }
 
-int send_buf(radio_packet_t *packet)
+int8_t send_buf(radio_packet_t *packet)
 {
     uint8_t buf[TAP_BUFFER_LENGTH];
     int nsent, to_send;
@@ -178,7 +178,7 @@ int send_buf(radio_packet_t *packet)
         warn("write");
         return -1;
     }
-    return 0;
+    return (nsent > INT8_MAX ? INT8_MAX : nsent);
 }
 
 int tap_init(char *name)

sys/shell/commands/sc_nativenet.c

@@ -103,7 +103,7 @@ void _nativenet_send_handler(char *pkt)
             printf("[nativenet] Sending packet of length %"PRIu16" to %"PRIu16": %s\n", p.length, p.dst, (char*) p.data);
             msg_send_receive(&mesg, &mesg, transceiver_pid);
             response = mesg.content.value;
-            printf("[nativenet] Packet sent: %"PRIu32"\n", response);
+            printf("[nativenet] Packet sent: %"PRIi8"\n", response);
             return;
         }
     }