From 6be087581f74bac4ebbf13a9497d63838a108d4f Mon Sep 17 00:00:00 2001
From: NeoCat <neocat@neocat.jp>
Date: Fri, 5 Aug 2022 13:19:18 +0900
Subject: [PATCH] uclient: Show error on invalid peer options specification

---
 src/apps/uclient/mainuclient.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/apps/uclient/mainuclient.c b/src/apps/uclient/mainuclient.c
index 8a824cc8..2516f4d5 100644
--- a/src/apps/uclient/mainuclient.c
+++ b/src/apps/uclient/mainuclient.c
@@ -453,6 +453,10 @@ int main(int argc, char **argv)
 	}
 
 	if (!c2c) {
+                if(!peer_address[0]) {
+                        fprintf(stderr,"Either -e peer_address or -y must be specified\n");
+                        return -1;
+                }
 
 		if (make_ioa_addr((const uint8_t*) peer_address, peer_port, &peer_addr) < 0) {
 			return -1;