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devtools/gossipwith: allow setting the secret key.

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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2019-07-17 07:13:14 +09:30
committed by neil saitug
parent af535bf5ff
commit 1036f98613
1 changed files with 18 additions and 1 deletions
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19
devtools/gossipwith.c
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@@ -4,6 +4,7 @@
#include <ccan/io/io.h> #include <ccan/io/io.h>
#include <ccan/opt/opt.h> #include <ccan/opt/opt.h>
#include <ccan/read_write_all/read_write_all.h> #include <ccan/read_write_all/read_write_all.h>
#include <ccan/str/hex/hex.h>
#include <common/crypto_sync.h> #include <common/crypto_sync.h>
#include <common/dev_disconnect.h> #include <common/dev_disconnect.h>
#include <common/peer_failed.h> #include <common/peer_failed.h>
@@ -184,6 +185,18 @@ static struct io_plan *handshake_success(struct io_conn *conn,
err(1, "Reading msg"); err(1, "Reading msg");
} }
static char *opt_set_secret(const char *arg, struct secret *s)
{
if (!hex_decode(arg, strlen(arg), s->data, sizeof(s->data)))
return "secret must be 64 hex digits";
return NULL;
}
static void opt_show_secret(char buf[OPT_SHOW_LEN], const struct secret *s)
{
hex_encode(s->data, sizeof(s->data), buf, OPT_SHOW_LEN);
}
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
struct io_conn *conn = tal(NULL, struct io_conn); struct io_conn *conn = tal(NULL, struct io_conn);
@@ -198,6 +211,8 @@ int main(int argc, char *argv[])
secp256k1_ctx = secp256k1_context_create(SECP256K1_CONTEXT_VERIFY | secp256k1_ctx = secp256k1_context_create(SECP256K1_CONTEXT_VERIFY |
SECP256K1_CONTEXT_SIGN); SECP256K1_CONTEXT_SIGN);
memset(&notsosecret, 0x42, sizeof(notsosecret));
opt_register_noarg("--initial-sync", opt_set_bool, &initial_sync, opt_register_noarg("--initial-sync", opt_set_bool, &initial_sync,
"Stream complete gossip history at start"); "Stream complete gossip history at start");
opt_register_arg("--max-messages", opt_set_ulongval, opt_show_ulongval, opt_register_arg("--max-messages", opt_set_ulongval, opt_show_ulongval,
@@ -205,6 +220,9 @@ int main(int argc, char *argv[])
"Terminate after reading this many messages (> 0)"); "Terminate after reading this many messages (> 0)");
opt_register_noarg("--stdin", opt_set_bool, &stream_stdin, opt_register_noarg("--stdin", opt_set_bool, &stream_stdin,
"Stream gossip messages from stdin."); "Stream gossip messages from stdin.");
opt_register_arg("--privkey", opt_set_secret, opt_show_secret,
&notsosecret,
"Secret key to use for our identity");
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",
@@ -258,7 +276,6 @@ int main(int argc, char *argv[])
if (conn->fd < 0) if (conn->fd < 0)
err(1, "Creating socket"); err(1, "Creating socket");
memset(&notsosecret, 0x42, sizeof(notsosecret));
if (!pubkey_from_secret(&notsosecret, &us)) if (!pubkey_from_secret(&notsosecret, &us))
errx(1, "Creating pubkey"); errx(1, "Creating pubkey");