Function main

devtools/dump-gossipstore.c:17–139

#define GSTORE_MINOR 10

int main(int argc, char *argv[])
{
	int fd;
	u8 version;
	struct gossip_hdr hdr;
	size_t off;
	bool print_deleted = false;
	bool print_timestamp = false;

	setup_locale();
	opt_register_noarg("--print-deleted", opt_set_bool, &print_deleted,
			   "Print deleted entries too");
	opt_register_noarg("--print-timestamps", opt_set_bool, &print_timestamp,
			   "Print timestamp with entries");
	opt_register_noarg("--help|-h", opt_usage_and_exit,
			   "[<gossip_store>]"
			   "Dump all gossip messages in the store",
			   "Print this message.");

	opt_parse(&argc, argv, opt_log_stderr_exit);
	if (argc > 2)
		opt_usage_and_exit("Too many arguments");

	if (argc == 2) {
		fd = open(argv[1], O_RDONLY);
		if (fd < 0)
			err(1, "Opening %s", argv[1]);
	} else
		fd = STDIN_FILENO;

	if (read(fd, &version, sizeof(version)) != sizeof(version))
		errx(1, "Empty file");

	if (GOSSIP_STORE_MAJOR_VERSION(version) != GSTORE_MAJOR)
		errx(1, "Unsupported major gossip_version %u (expected %u)",
		     GOSSIP_STORE_MAJOR_VERSION(version), GSTORE_MAJOR);

	/* Unsupported minor just means we might not understand all fields,
	 * or all flags. */
	if (GOSSIP_STORE_MINOR_VERSION(version) != GSTORE_MINOR)
		warnx("UNKNOWN GOSSIP minor VERSION %u (expected %u)",
		      GOSSIP_STORE_MINOR_VERSION(version), GSTORE_MINOR);

	printf("GOSSIP VERSION %u/%u\n",
	       GOSSIP_STORE_MINOR_VERSION(version),
	       GOSSIP_STORE_MAJOR_VERSION(version));
	off = 1;

	while (read(fd, &hdr, sizeof(hdr)) == sizeof(hdr)) {
		struct amount_sat sat;
		struct short_channel_id scid;
		u32 msglen = be32_to_cpu(hdr.len);
		u8 *msg, *inner;
		bool deleted, push, ratelimit;
		u32 blockheight;

		deleted = (msglen & GOSSIP_STORE_LEN_DELETED_BIT);
		push = (msglen & GOSSIP_STORE_LEN_PUSH_BIT);