lnsocket

commit 496407d29ddae7db3a6bcb33e87eb73801d50a7e
parent e6e7c23a1f47325f6be592d281ac537bff49f700
Author: William Casarin <jb55@jb55.com>
Date:   Thu,  3 Mar 2022 13:05:31 -0800

lnrpc: don't allow interleaved messages

I've seen this happen on iOS, let's make sure it doesn't happen here

Diffstat:
M
rpc.c
 | 
11
++++-------

1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/rpc.c b/rpc.c
@@ -94,19 +94,16 @@ int main(int argc, const char *argv[])
 		if (!(ok = lnsocket_recv(ln, &msgtype, &buf, &len)))
 			goto done;
 
-		printf("%.*s", len - 8, buf + 8);
-
 		switch (msgtype) {
 		case COMMANDO_REPLY_TERM:
-			printf("\n");
+			printf("%.*s\n", len - 8, buf + 8);
 			goto done;
 		case COMMANDO_REPLY_CONTINUES:
+			printf("%.*s", len - 8, buf + 8);
 			continue;
 		default:
-			printf("\n");
-			fprintf(stderr, "unknown msgtype %d\n", msgtype);
-			ok = 0;
-			goto done;
+			// ignore extra interleaved messages which can happen
+			continue;
 		}
 	}