diff options
Diffstat (limited to 'pcap-bt-linux.c')
| -rw-r--r-- | pcap-bt-linux.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/pcap-bt-linux.c b/pcap-bt-linux.c index 8a258ebf..ac5e529b 100644 --- a/pcap-bt-linux.c +++ b/pcap-bt-linux.c @@ -197,6 +197,17 @@ bt_activate(pcap_t* handle) return PCAP_ERROR; } + /* + * Turn a negative snapshot value (invalid), a snapshot value of + * 0 (unspecified), or a value bigger than the normal maximum + * value, into the maximum allowed value. + * + * If some application really *needs* a bigger snapshot + * length, we should just increase MAXIMUM_SNAPLEN. + */ + if (handle->snapshot <= 0 || handle->snapshot > MAXIMUM_SNAPLEN) + handle->snapshot = MAXIMUM_SNAPLEN; + /* Initialize some components of the pcap structure. */ handle->bufsize = BT_CTRL_SIZE+sizeof(pcap_bluetooth_h4_header)+handle->snapshot; handle->linktype = DLT_BLUETOOTH_HCI_H4_WITH_PHDR; |