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devtools/gossipwith: add a "network" option

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If specified, this will add the corresponding chain_hash to the init message.
This commit is contained in:
darosior
2019-11-28 15:33:34 +01:00
committed by Christian Decker
parent 3322048774
commit cd11c2050c
1 changed files with 31 additions and 1 deletions
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32
devtools/gossipwith.c
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@@ -1,4 +1,6 @@
/* Simple tool to route gossip from a peer. */ /* Simple tool to route gossip from a peer. */
#include <bitcoin/block.h>
#include <bitcoin/chainparams.h>
#include <ccan/array_size/array_size.h> #include <ccan/array_size/array_size.h>
#include <ccan/err/err.h> #include <ccan/err/err.h>
#include <ccan/io/io.h> #include <ccan/io/io.h>
@@ -81,6 +83,22 @@ enum dev_disconnect dev_disconnect(int pkt_type)
} }
#endif #endif
static char *opt_set_network(const char *arg, void *unused)
{
assert(arg != NULL);
/* Set the global chainparams instance */
chainparams = chainparams_for_network(arg);
if (!chainparams)
return tal_fmt(NULL, "Unknown network name '%s'", arg);
return NULL;
}
static void opt_show_network(char buf[OPT_SHOW_LEN], const void *unused)
{
snprintf(buf, OPT_SHOW_LEN, "%s", chainparams->network_name);
}
void peer_failed_connection_lost(void) void peer_failed_connection_lost(void)
{ {
exit(0); exit(0);
@@ -137,11 +155,19 @@ static struct io_plan *handshake_success(struct io_conn *conn,
OPTIONAL_FEATURE(OPT_INITIAL_ROUTING_SYNC)); OPTIONAL_FEATURE(OPT_INITIAL_ROUTING_SYNC));
if (!no_init) { if (!no_init) {
msg = towire_init(NULL, NULL, features, NULL); struct tlv_init_tlvs *tlvs = NULL;
if (chainparams) {
tlvs = tlv_init_tlvs_new(NULL);
tlvs->networks = tal(tlvs, struct tlv_init_tlvs_networks);
tlvs->networks->chains = tal_arr(tlvs->networks, struct bitcoin_blkid, 1);
tlvs->networks->chains[0] = chainparams->genesis_blockhash;
}
msg = towire_init(NULL, NULL, features, tlvs);
sync_crypto_write(pps, take(msg)); sync_crypto_write(pps, take(msg));
/* Ignore their init message. */ /* Ignore their init message. */
tal_free(sync_crypto_read(NULL, pps)); tal_free(sync_crypto_read(NULL, pps));
tal_free(tlvs);
} }
if (stream_stdin) if (stream_stdin)
@@ -254,6 +280,10 @@ int main(int argc, char *argv[])
"Print out messages in hex"); "Print out messages in hex");
opt_register_arg("--features=<hex>", opt_set_features, NULL, opt_register_arg("--features=<hex>", opt_set_features, NULL,
&features, "Send these features in init"); &features, "Send these features in init");
opt_register_arg("--network", opt_set_network, opt_show_network,
NULL,
"Select the network parameters (bitcoin, testnet, regtest"
" liquid, liquid-regtest, litecoin or litecoin-testnet)");
opt_register_noarg("--help|-h", opt_usage_and_exit, opt_register_noarg("--help|-h", opt_usage_and_exit,
"id@addr[:port] [hex-msg-tosend...]\n" "id@addr[:port] [hex-msg-tosend...]\n"
"Connect to a lightning peer and relay gossip messages from it", "Connect to a lightning peer and relay gossip messages from it",