From fbefda6103397613e9cb226c8cdea049e3fed016 Mon Sep 17 00:00:00 2001
From: XANTRONIX Development <dev@xantronix.com>
Date: Tue, 22 Sep 2020 11:45:22 -0400
Subject: [PATCH] Avoid connecting to APRS-IS via UDP

Avoid connecting to APRS-IS via UDP by filtering out getaddrinfo()
results of SOCK_DGRAM type
---
 src/aprs_is.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/aprs_is.c b/src/aprs_is.c
index 68ef330..fa4da9b 100644
--- a/src/aprs_is.c
+++ b/src/aprs_is.c
@@ -89,6 +89,10 @@ static int aprs_is_connect(patty_ax25_aprs_is *aprs,
     }
 
     for (ai=ai0; ai; ai=ai->ai_next) {
+        if (ai->ai_socktype == SOCK_DGRAM) {
+            continue;
+        }
+
         if ((aprs->fd = socket(ai->ai_family,
                                ai->ai_socktype,
                                ai->ai_protocol)) < 0) {