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#include <ccan/crypto/shachain/shachain.h>
#include <ccan/short_types/short_types.h>
#include <ccan/tal/tal.h>
#include <ccan/opt/opt.h>
#include <ccan/str/hex/hex.h>
#include <ccan/err/err.h>
#include <ccan/read_write_all/read_write_all.h>
#include "lightning.pb-c.h"
#include "bitcoin/base58.h"
#include "pkt.h"
#include "bitcoin/script.h"
#include "permute_tx.h"
#include "bitcoin/signature.h"
#include "commit_tx.h"
#include "bitcoin/pubkey.h"
#include "find_p2sh_out.h"
#include "protobuf_convert.h"
#include "version.h"
#include <unistd.h>
int main(int argc, char *argv[])
{
const tal_t *ctx = tal_arr(NULL, char, 0);
struct sha256 seed, htlc_rhash, revocation_hash;
struct pkt *pkt;
unsigned update_num;
UpdateAddHtlc *u;
bool routefail = false;
err_set_progname(argv[0]);
opt_register_noarg("--help|-h", opt_usage_and_exit,
"<seed> <update-number> <update-pkt>\n"
"Create a new HTLC (timedout) remove message",
"Print this message.");
opt_register_noarg("--routefail", opt_set_bool, &routefail,
"Generate a routefail instead of timedout");
opt_register_version();
opt_parse(&argc, argv, opt_log_stderr_exit);
if (argc != 4)
opt_usage_exit_fail("Expected 3 arguments");
if (!hex_decode(argv[1], strlen(argv[1]), &seed, sizeof(seed)))
errx(1, "Invalid seed '%s' - need 256 hex bits", argv[1]);
update_num = atoi(argv[2]);
if (!update_num)
errx(1, "Update number %s invalid", argv[2]);
u = pkt_from_file(argv[3], PKT__PKT_UPDATE_ADD_HTLC)->update_add_htlc;
proto_to_sha256(u->r_hash, &htlc_rhash);
/* Get next revocation hash. */
shachain_from_seed(&seed, update_num, &revocation_hash);
sha256(&revocation_hash,
revocation_hash.u.u8, sizeof(revocation_hash.u.u8));
if (routefail)
pkt = update_htlc_routefail_pkt(ctx, &revocation_hash,
&htlc_rhash);
else
pkt = update_htlc_timedout_pkt(ctx, &revocation_hash,
&htlc_rhash);
if (!write_all(STDOUT_FILENO, pkt, pkt_totlen(pkt)))
err(1, "Writing out packet");
tal_free(ctx);
return 0;
}