Structure alignment

[양승용]

Hi all

In wpa.h (0.4.1 release)

I have seen the following line

struct ieee802_1x_eapol_key {
    u8 type;
    u16 key_length;
    /* does not repeat within the life of the keying material used to
     * encrypt the Key field; 64-bit NTP timestamp MAY be used here */
    u8 replay_counter[IEEE8021X_REPLAY_COUNTER_LEN];
    ...
}

which in not 16bit aligned. If wpa_supplicant is built with visual c++ 6.0, It will cause problem

I suggest that the above structure may be

struct ieee802_1x_eapol_key {
    u8 type;
    u8 key_length[2];
    /* does not repeat within the life of the keying material used to
     * encrypt the Key field; 64-bit NTP timestamp MAY be used here */
    u8 replay_counter[IEEE8021X_REPLAY_COUNTER_LEN];
    ...
}

in code which is dealing with above structure.

memcpy key_length to temporary u16 variable and convert temporary variable to host order variable.

...

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