Truncated/empty SSIDs

This tool shows lots more devices than others I've tried. However, some SSIDs seem truncated ("direct..." in the example below):

[D] f0:34:04:b5:dc:8f (TctMobil) [-83] ==> 'SSID: '
f2:34:04:b6:ea:3e (RESOLVE-ERROR) [-86] ==> 'DIRECT-'
d0:87:e2:b4:37:ad (SamsungE) [-85] ==> 'kitl9reybhvs2i7'
d0:87:e2:b4:37:ad (SamsungE) [-85] ==> 'SSID: '
54:60:09:44:2f:ab (Google) [-83] ==> 'TP-LINK_27E1'
...

[bolbers]

Change after Line 185 to this:

    if "wlan_mgt" in pkt:
        nossid = False
        if not str(pkt.wlan_mgt.tag)[:38] == "Tag: SSID parameter set: Wildcard SSID":
            ssid = pkt.wlan_mgt.ssid
        else:
            nossid = True
    else:
        nossid = False
        if not str(pkt[3].tag)[:38] == "Tag: SSID parameter set: Wildcard SSID":
            ssid = pkt[3].ssid

Helped with my install.