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84 lines
2.7 KiB
84 lines
2.7 KiB
10 years ago
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/* My example:
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* ./check-anchor-scriptsigs A-open.pb B-open.pb A-anchor-scriptsigs.pb B-anchor-scriptsigs.pb A-commit.tx B-commit.tx > A-anchor.tx
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* ./check-anchor-scriptsigs B-open.pb A-open.pb B-anchor-scriptsigs.pb A-anchor-scriptsigs.pb B-commit.tx A-commit.tx > B-anchor.tx
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*/
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#include <ccan/crypto/shachain/shachain.h>
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#include <ccan/short_types/short_types.h>
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#include <ccan/tal/tal.h>
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#include <ccan/opt/opt.h>
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#include <ccan/str/hex/hex.h>
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#include <ccan/err/err.h>
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#include <ccan/read_write_all/read_write_all.h>
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#include <ccan/structeq/structeq.h>
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#include "lightning.pb-c.h"
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#include "anchor.h"
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#include "base58.h"
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#include "pkt.h"
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#include "bitcoin_script.h"
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#include "permute_tx.h"
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#include "signature.h"
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#include "commit_tx.h"
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#include "pubkey.h"
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#include <openssl/ec.h>
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#include <unistd.h>
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int main(int argc, char *argv[])
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{
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const tal_t *ctx = tal_arr(NULL, char, 0);
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OpenChannel *o1, *o2;
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OpenAnchorScriptsigs *ss1, *ss2;
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struct bitcoin_tx *anchor, *commit1, *commit2;
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struct sha256_double txid;
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u8 *tx_arr;
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size_t *inmap, *outmap;
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char *tx_hex;
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err_set_progname(argv[0]);
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opt_register_noarg("--help|-h", opt_usage_and_exit,
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"<open-channel-file1> <open-channel-file2> <anchor-sig2-1> <anchor-sigs2> <commit-tx1> <commit-tx2>\n"
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"Output the anchor transaction by merging the scriptsigs",
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"Print this message.");
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opt_parse(&argc, argv, opt_log_stderr_exit);
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if (argc != 7)
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opt_usage_exit_fail("Expected 6 arguments");
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o1 = pkt_from_file(argv[1], PKT__PKT_OPEN)->open;
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o2 = pkt_from_file(argv[2], PKT__PKT_OPEN)->open;
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ss1 = pkt_from_file(argv[3], PKT__PKT_OPEN_ANCHOR_SCRIPTSIGS)
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->open_anchor_scriptsigs;
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ss2 = pkt_from_file(argv[4], PKT__PKT_OPEN_ANCHOR_SCRIPTSIGS)
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->open_anchor_scriptsigs;
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commit1 = bitcoin_tx_from_file(ctx, argv[5]);
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commit2 = bitcoin_tx_from_file(ctx, argv[6]);
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anchor = anchor_tx_create(ctx, o1, o2, &inmap, &outmap);
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if (!anchor)
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errx(1, "Failed transaction merge");
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if (!anchor_add_scriptsigs(anchor, ss1, ss2, inmap))
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errx(1, "Wrong number of scriptsigs");
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bitcoin_txid(anchor, &txid);
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/* Now check that the txid is spent by the commitment txs we created */
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assert(commit1->input_count == 1 && commit2->input_count == 1);
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if (!structeq(&txid, &commit1->input[0].txid))
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errx(1, "%s doesn't spend this anchor", argv[5]);
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if (!structeq(&txid, &commit2->input[0].txid))
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errx(1, "%s doesn't spend this anchor", argv[6]);
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/* Print it out in hex. */
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tx_arr = linearize_tx(ctx, anchor);
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tx_hex = tal_arr(tx_arr, char, hex_str_size(tal_count(tx_arr)));
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hex_encode(tx_arr, tal_count(tx_arr), tx_hex, tal_count(tx_hex));
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if (!write_all(STDOUT_FILENO, tx_hex, strlen(tx_hex)))
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err(1, "Writing out anchor transaction");
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tal_free(ctx);
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return 0;
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}
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