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devtools/gossipwith: add option to stream from stdin.

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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2019-04-08 09:22:19 +09:30
parent 2bd7df93c6
commit 8a2d387101
1 changed files with 16 additions and 0 deletions
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16
devtools/gossipwith.c
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@@ -14,6 +14,7 @@
#define io_write_ simple_write
#define io_read_ simple_read
#define io_close simple_close
static bool stream_stdin = false;
static struct io_plan *simple_write(struct io_conn *conn,
const void *data, size_t len,
@@ -130,6 +131,19 @@ static struct io_plan *handshake_success(struct io_conn *conn,
tal_free(sync_crypto_read(NULL, &cs, conn->fd));
/* Did they ask us to send any messages? Do so now. */
if (stream_stdin) {
beint16_t be_inlen;
while (read_all(STDIN_FILENO, &be_inlen, sizeof(be_inlen))) {
u32 msglen = be16_to_cpu(be_inlen);
u8 *msg = tal_arr(NULL, u8, msglen);
if (!read_all(STDIN_FILENO, msg, msglen))
err(1, "Only read partial message");
sync_crypto_write(&cs, conn->fd, take(msg));
}
}
while (*args) {
u8 *m = tal_hexdata(NULL, *args, strlen(*args));
if (!m)
@@ -172,6 +186,8 @@ int main(int argc, char *argv[])
opt_register_arg("--max-messages", opt_set_ulongval, opt_show_ulongval,
&max_messages,
"Terminate after reading this many messages (> 0)");
opt_register_noarg("--stdin", opt_set_bool, &stream_stdin,
"Stream gossip messages from stdin.");
opt_register_noarg("--help|-h", opt_usage_and_exit,
"id@addr[:port] [hex-msg-tosend...]\n"
"Connect to a lightning peer and relay gossip messages from it",