core-lightning/lightningd/gossip_msg.c
Christian Decker 74df755a29 gossip: Added nested message types for getnodes query
Added a struct that represents a single entry in a `getnodes` reply,
so that we can append one after the other and parse them again on the
other side.
2017-03-15 21:32:55 +01:00

28 lines
889 B
C

#include <lightningd/gossip_msg.h>
#include <wire/wire.h>
void fromwire_gossip_getnodes_entry(const u8 **pptr, size_t *max, struct gossip_getnodes_entry *entry)
{
u8 hostnamelen;
fromwire_pubkey(pptr, max, &entry->nodeid);
hostnamelen = fromwire_u8(pptr, max);
entry->hostname = tal_arr(entry, char, hostnamelen);
fromwire_u8_array(pptr, max, (u8*)entry->hostname, hostnamelen);
entry->port = fromwire_u16(pptr, max);
}
void towire_gossip_getnodes_entry(u8 **pptr, const struct gossip_getnodes_entry *entry)
{
u8 hostnamelen;
towire_pubkey(pptr, &entry->nodeid);
if (entry->hostname) {
hostnamelen = strlen(entry->hostname);
towire_u8(pptr, hostnamelen);
towire_u8_array(pptr, (u8*)entry->hostname, hostnamelen);
}else {
/* If we don't have a hostname just write an empty string */
hostnamelen = 0;
towire_u8(pptr, hostnamelen);
}
towire_u16(pptr, entry->port);
}