Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@xxxxxxxxx>
---
src/ap/vlan_init.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/src/ap/vlan_init.c b/src/ap/vlan_init.c
index 31e4fc6..99f1e3f 100644
--- a/src/ap/vlan_init.c
+++ b/src/ap/vlan_init.c
@@ -138,6 +138,8 @@ int vlan_init(struct hostapd_data *hapd)
!hapd->conf->vlan) {
/* dynamic vlans enabled but no (or empty) vlan_file given */
struct hostapd_vlan *vlan;
+ int ret;
+
vlan = os_zalloc(sizeof(*vlan));
if (vlan == NULL) {
wpa_printf(MSG_ERROR, "Out of memory while assigning "
@@ -146,8 +148,14 @@ int vlan_init(struct hostapd_data *hapd)
}
vlan->vlan_id = VLAN_ID_WILDCARD;
- os_snprintf(vlan->ifname, sizeof(vlan->ifname), "%s.#",
- hapd->conf->iface);
+ ret = os_snprintf(vlan->ifname, sizeof(vlan->ifname), "%s.#",
+ hapd->conf->iface);
+ if (ret >= (int)sizeof(vlan->ifname))
+ wpa_printf(MSG_WARNING,
+ "VLAN: Interface name was truncated to %s",
+ vlan->ifname);
+ else if (ret < 0)
+ return ret;
vlan->next = hapd->conf->vlan;
hapd->conf->vlan = vlan;
}
--
2.7.4
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