Fix segfault in hostapd_eid_ht_capabilities() with some drivers

This function is not really needed in case of drivers that build the
HT IEs internally. However, since this can get called if ieee80211n=1
is set in hostapd.conf, we better not segfault even if the driver
does not provide hw info (hapd->iface->current_mode == NULL).
This commit is contained in:
Jouni Malinen 2010-09-05 12:47:16 +03:00
parent b070460b1a
commit 8421e95c71

View file

@ -30,7 +30,7 @@ u8 * hostapd_eid_ht_capabilities(struct hostapd_data *hapd, u8 *eid)
struct ieee80211_ht_capabilities *cap;
u8 *pos = eid;
if (!hapd->iconf->ieee80211n)
if (!hapd->iconf->ieee80211n || !hapd->iface->current_mode)
return eid;
*pos++ = WLAN_EID_HT_CAP;