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#include <bitcoin/tx.h>
#include <common/channel_id.h>
#include <common/type_to_string.h>
#include <wire/wire.h>
void derive_channel_id(struct channel_id *channel_id,
const struct bitcoin_txid *txid, u16 txout)
{
BUILD_ASSERT(sizeof(*channel_id) == sizeof(*txid));
memcpy(channel_id, txid, sizeof(*channel_id));
channel_id->id[sizeof(*channel_id)-2] ^= txout >> 8;
channel_id->id[sizeof(*channel_id)-1] ^= txout;
}
void towire_channel_id(u8 **pptr, const struct channel_id *channel_id)
{
towire(pptr, channel_id, sizeof(*channel_id));
}
void fromwire_channel_id(const u8 **cursor, size_t *max,
struct channel_id *channel_id)
{
fromwire(cursor, max, channel_id, sizeof(*channel_id));
}
REGISTER_TYPE_TO_HEXSTR(channel_id);