pptp: fix byte order of peer call id in Call-Disconnect-Notify

conn->peer_call_id is assigned msg->call_id straight from the wire, so it
holds a network order value, but send_pptp_call_disconnect_notify() then
applies htons() to it. On little-endian hosts the field is swapped twice
and a peer call id of 0x1234 is sent as 0x3412, so the peer cannot match
the notify to its call. Big-endian hosts are unaffected, as both swaps
are no-ops there.

Store the call id in host order, which is what the htons() at the point
of use expects. Nothing else reads the field.

0 files changed, 0 insertions, 0 deletions