diff options
Diffstat (limited to 'src/transport/gnunet-helper-transport-wlan-dummy.c')
| -rw-r--r-- | src/transport/gnunet-helper-transport-wlan-dummy.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/transport/gnunet-helper-transport-wlan-dummy.c b/src/transport/gnunet-helper-transport-wlan-dummy.c index 86e5d4684..476b403a5 100644 --- a/src/transport/gnunet-helper-transport-wlan-dummy.c +++ b/src/transport/gnunet-helper-transport-wlan-dummy.c @@ -80,18 +80,22 @@ stdin_send (void *cls, void *client, const struct GNUNET_MessageHeader *hdr) const struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage *in; size_t payload_size; struct GNUNET_TRANSPORT_WLAN_RadiotapReceiveMessage newheader; + uint16_t sendsize; + sendsize = ntohs (hdr->size); in = (const struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage *) hdr; if ( (GNUNET_MESSAGE_TYPE_WLAN_DATA_TO_HELPER != ntohs (hdr->type)) || - (sizeof (struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage) < ntohs (hdr->size)) ) + (sizeof (struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage) > sendsize) ) { - fprintf (stderr, "Function stdin_send: wrong packet type or size\n"); + fprintf (stderr, "Received malformed message\n", + (unsigned int) sendsize, + (unsigned int) ntohs (hdr->type)); exit (1); } - payload_size = ntohs (hdr->size) - sizeof (struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage); + payload_size = sendsize - sizeof (struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage); if ((payload_size + sizeof (struct GNUNET_TRANSPORT_WLAN_RadiotapReceiveMessage) + write_pout->size) > MAXLINE * 2) { - fprintf (stderr, "Function stdin_send: Packet too big for buffer\n"); + fprintf (stderr, "Packet too big for buffer\n"); exit (1); } memset (&newheader, 0, sizeof (newheader)); |