Function write_msg_to_gstore

devtools/gossmap-compress.c:294–308

}

static void write_msg_to_gstore(int outfd, const u8 *msg TAKES)
{
	struct gossip_hdr hdr;

	hdr.flags = CPU_TO_BE16(GOSSIP_STORE_COMPLETED_BIT);
	hdr.len = cpu_to_be16(tal_bytelen(msg));
	hdr.timestamp = 0;
	hdr.crc = cpu_to_be32(crc32c(0, msg, tal_bytelen(msg)));

	if (!write_all(outfd, &hdr, sizeof(hdr))
	    || !write_all(outfd, msg, tal_bytelen(msg))) {
		err(1, "Writing gossip_store");
	}
	tal_free_if_taken(msg);
}

/* BOLT #7:
 * 1. type: 256 (`channel_announcement`)