From 196ae760522885c8a5a86f44b78570fcde5f7adb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?St=C3=A9phane=20Raimbault?= <stephane.raimbault@gmail.com>
Date: Wed, 24 Jan 2024 16:58:30 +0100
Subject: [PATCH] Free addrinfo struct on getaddrinfo() errors

---
 src/modbus-tcp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/modbus-tcp.c b/src/modbus-tcp.c
index 8389eaedf..0c571097a 100644
--- a/src/modbus-tcp.c
+++ b/src/modbus-tcp.c
@@ -403,6 +403,7 @@ static int _modbus_tcp_pi_connect(modbus_t *ctx)
         if (ctx->debug) {
             fprintf(stderr, "Error returned by getaddrinfo: %s\n", gai_strerror(rc));
         }
+        freeaddrinfo(ai_list);
         errno = ECONNREFUSED;
         return -1;
     }
@@ -628,6 +629,7 @@ int modbus_tcp_pi_listen(modbus_t *ctx, int nb_connection)
         if (ctx->debug) {
             fprintf(stderr, "Error returned by getaddrinfo: %s\n", gai_strerror(rc));
         }
+        freeaddrinfo(ai_list);
         errno = ECONNREFUSED;
         return -1;
     }