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gossipwith: add ability to send message. 

Just cmdline for now, rather than a proper stdin io loop.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2018-09-21 09:59:48 +09:30 committed by Christian Decker
parent 0925daa087
commit 47f5bc4deb
1 changed files with 13 additions and 4 deletions
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17
devtools/gossipwith.c
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@ -104,7 +104,7 @@ static struct io_plan *handshake_success(struct io_conn *conn,
const struct pubkey *them,
const struct wireaddr_internal *addr,
const struct crypto_state *orig_cs,
void *unused)
char **args)
{
u8 *msg;
struct crypto_state cs = *orig_cs;
@ -122,6 +122,15 @@ static struct io_plan *handshake_success(struct io_conn *conn,
/* Ignore their init message. */
tal_free(sync_crypto_read(NULL, &cs, conn->fd));
/* Did they ask us to send any messages? Do so now. */
while (*args) {
u8 *m = tal_hexdata(NULL, *args, strlen(*args));
if (!m)
errx(1, "Invalid hexdata '%s'", *args);
sync_crypto_write(&cs, conn->fd, take(m));
args++;
}
/* Now write out whatever we get. */
while ((msg = sync_crypto_read(NULL, &cs, conn->fd)) != NULL) {
be16 len = cpu_to_be16(tal_bytelen(msg));
@ -157,12 +166,12 @@ int main(int argc, char *argv[])
&max_messages,
"Terminate after reading this many messages (> 0)");
opt_register_noarg("--help|-h", opt_usage_and_exit,
"id@addr[:port]\n"
"id@addr[:port] [hex-msg-tosend...]\n"
"Connect to a lightning peer and relay gossip messages from it",
"Print this message.");
opt_parse(&argc, argv, opt_log_stderr_exit);
if (argc != 2)
if (argc < 2)
opt_usage_exit_fail("Need an id@addr to connect to");
at = strchr(argv[1], '@');
if (!at)
@ -214,7 +223,7 @@ int main(int argc, char *argv[])
if (connect(conn->fd, ai->ai_addr, ai->ai_addrlen) != 0)
err(1, "Connecting to %s", at+1);
initiator_handshake(conn, &us, &them, &addr, handshake_success, NULL);
initiator_handshake(conn, &us, &them, &addr, handshake_success, argv+2);
exit(0);
}