Re: [PATCH v3 11/26] wpa_supplicant: udp ctrl setup ctrl_interface

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On 20 February 2016 at 16:24, Jouni Malinen <j@xxxxx> wrote:
> On Wed, Feb 17, 2016 at 01:14:14PM +0100, Janusz Dziedzic wrote:
>> Setup ctrl_interface name. This should be used
>> to check interface <-> udp port assigment.
>
>> diff --git a/wpa_supplicant/ctrl_iface_udp.c b/wpa_supplicant/ctrl_iface_udp.c
>> @@ -363,6 +363,7 @@ struct ctrl_iface_priv *
>>  wpa_supplicant_ctrl_iface_init(struct wpa_supplicant *wpa_s)
>
>> +     char port_str[40] = "udp:9877";
>
> What is the point of setting the "udp:9877" value here?
>
>> +     /* Setup correct ctrl_interface */
>> +     os_snprintf(port_str, sizeof(port_str), "udp:%d", port);
>
> Wouldn't this unconditionally replace that "udp:9877" value?
>
>> +     if (wpa_s->conf->ctrl_interface)
>> +             os_free(wpa_s->conf->ctrl_interface);
>
> os_free(NULL) is fine, so please no "if (ptr)" checks before os_free()
> calls.
>
>> +     wpa_s->conf->ctrl_interface = os_strdup(port_str);
>
> Should there be a check to verify that os_strdup() succeeds here?
>
Will fix this in next version.

> --
> Jouni Malinen                                            PGP id EFC895FA

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