Function main

devtools/mkgossip.c:221–357

}

int main(int argc, char *argv[])
{
	struct privkey node_privkey[2], funding_privkey[2];
	struct pubkey node[2], bitcoin[2];
	struct node_id nodeid[2];
	int lesser_key;
	struct short_channel_id scid;
	struct bitcoin_blkid chainhash;
	secp256k1_ecdsa_signature nodesig[2], bitcoinsig[2];
	const u8 *features;
	u8 *cannounce;
	/* 2 bytes msg type + 256 bytes of signatures */
	const size_t channel_announcement_offset = 2 + 256;
	int argnum;
	struct sha256_double hash;
	struct update_opts opts[2];

	setup_locale();

	secp256k1_ctx = secp256k1_context_create(SECP256K1_CONTEXT_VERIFY |
						 SECP256K1_CONTEXT_SIGN);

	if (argc < 8 + 7 * 2)
		errx(1, "Usage: mkgossip <scid> <chainhash> <node-privkey1> <node-privkey2> <node1-funding-privkey> <node2-funding-privkey> <features-hex> update-opts-1 update-opts-2\n"
			"Where <update-opts> is:\n"
			"   <timestamp>\n"
			"   <cltv_expiry_delta>\n"
			"   <htlc_minimum_msat>\n"
			"   <fee_base_msat>\n"
			"   <fee_proportional_millionths>\n"
			"   <htlc_maximum_msat-or-empty>\n"
			"   <hex-addrstr>");

	opt_register_noarg("-v|--verbose", opt_set_bool, &verbose,
			   "Increase verbosity");

	opt_parse(&argc, argv, opt_log_stderr_exit);

	argnum = 1;
	if (!short_channel_id_from_str(argv[argnum], strlen(argv[argnum]), &scid))
		errx(1, "Bad scid");
	argnum++;
	/* Don't do endian-reversing insanity here! */
	if (!hex_decode(argv[argnum], strlen(argv[argnum]),
			&chainhash, sizeof(chainhash)))
		errx(1, "Parsing chainhash");
	argnum++;
	if (!hex_decode(argv[argnum], strlen(argv[argnum]),
			&node_privkey[0], sizeof(node_privkey[0])))
		errx(1, "Parsing node-privkey1");
	argnum++;
	if (!hex_decode(argv[argnum], strlen(argv[argnum]),
			&node_privkey[1], sizeof(node_privkey[2])))
		errx(1, "Parsing node-privkey2");
	argnum++;
	if (!hex_decode(argv[argnum], strlen(argv[argnum]),
			&funding_privkey[0], sizeof(funding_privkey[0])))
		errx(1, "Parsing funding-privkey1");