Function derive_channel_id

common/channel_id.c:9–16

#include <wire/wire.h>

void derive_channel_id(struct channel_id *channel_id,
		       const struct bitcoin_outpoint *outpoint)
{
	BUILD_ASSERT(sizeof(*channel_id) == sizeof(outpoint->txid));
	memcpy(channel_id, &outpoint->txid, sizeof(*channel_id));
	channel_id->id[sizeof(*channel_id)-2] ^= outpoint->n >> 8;
	channel_id->id[sizeof(*channel_id)-1] ^= outpoint->n;
}

void derive_channel_id_v2(struct channel_id *channel_id,
			  const struct pubkey *basepoint_1,