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tx: prepare for Elements Alpha.

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They sign, hash, and serialize differently.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2015-06-25 13:50:16 +09:30
parent 27e7c7b986
commit 20624c049f
6 changed files with 226 additions and 30 deletions
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8
commit_tx.c
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@@ -3,6 +3,7 @@
#include "bitcoin/shadouble.h"
#include "bitcoin/tx.h"
#include "commit_tx.h"
#include "overflows.h"
#include "permute_tx.h"
#include "pkt.h"
#include "protobuf_convert.h"
@@ -26,6 +27,9 @@ struct bitcoin_tx *create_commit_tx(const tal_t *ctx,
/* Our input spends the anchor tx output. */
tx->input[0].txid = *anchor_txid;
tx->input[0].index = anchor_output;
if (add_overflows_u64(ours->anchor->total, theirs->anchor->total))
return tal_free(tx);
tx->input[0].input_amount = ours->anchor->total + theirs->anchor->total;
/* Output goes to our final pubkeys */
if (!proto_to_pubkey(ours->final, &ourkey))
@@ -68,6 +72,10 @@ struct bitcoin_tx *create_commit_tx(const tal_t *ctx,
return tal_free(tx);
tx->output[0].amount -= delta;
/* Calculate fee; difference of inputs and outputs. */
tx->fee = tx->input[0].input_amount
- (tx->output[0].amount + tx->output[1].amount);
permute_outputs(ours->seed, theirs->seed, 1, tx->output, 2, NULL);
return tx;
}