From 04176659ec1be3f0e1eb4d2de2a90af255ed29ba Mon Sep 17 00:00:00 2001
From: XANTRONIX Development <dev@xantronix.com>
Date: Wed, 5 Aug 2020 22:53:26 -0400
Subject: [PATCH] Allow changing socket ack timer with setsockopt()

Allow changing socket ack timer with patty_client_setsockopt()
---
 include/patty/ax25/sock.h | 2 ++
 include/patty/client.h    | 2 ++
 src/server.c              | 7 +++++--
 src/sock.c                | 4 ++++
 4 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/include/patty/ax25/sock.h b/include/patty/ax25/sock.h
index 68bf94f..05ebf92 100644
--- a/include/patty/ax25/sock.h
+++ b/include/patty/ax25/sock.h
@@ -130,6 +130,8 @@ void patty_ax25_sock_reset(patty_ax25_sock *sock);
 
 void patty_ax25_sock_mtu_set(patty_ax25_sock *sock, size_t mtu);
 
+void patty_ax25_sock_ack_set(patty_ax25_sock *sock, time_t ack);
+
 void patty_ax25_sock_window_set(patty_ax25_sock *sock, size_t window);
 
 void patty_ax25_sock_params_upgrade(patty_ax25_sock *sock);
diff --git a/include/patty/client.h b/include/patty/client.h
index 8a3d948..1a8bccd 100644
--- a/include/patty/client.h
+++ b/include/patty/client.h
@@ -59,6 +59,8 @@ typedef struct _patty_client_setsockopt_request {
 typedef struct _patty_client_setsockopt_params {
     size_t mtu,
            window;
+
+    time_t ack;
 } patty_client_setsockopt_params;
 
 typedef struct _patty_client_setsockopt_if {
diff --git a/src/server.c b/src/server.c
index 19ee9ac..5667fb3 100644
--- a/src/server.c
+++ b/src/server.c
@@ -599,9 +599,12 @@ static int server_setsockopt(patty_ax25_server *server,
 
             if (data.mtu)    patty_ax25_sock_mtu_set(sock,    data.mtu);
             if (data.window) patty_ax25_sock_window_set(sock, data.window);
+            if (data.ack)    patty_ax25_sock_ack_set(sock,    data.ack);
 
-            if (patty_ax25_sock_realloc_bufs(sock) < 0) {
-                goto error_realloc_bufs;
+            if (data.mtu || data.window) {
+                if (patty_ax25_sock_realloc_bufs(sock) < 0) {
+                    goto error_realloc_bufs;
+                }
             }
 
             break;
diff --git a/src/sock.c b/src/sock.c
index 0bf35c5..db6fd27 100644
--- a/src/sock.c
+++ b/src/sock.c
@@ -231,6 +231,10 @@ void patty_ax25_sock_mtu_set(patty_ax25_sock *sock, size_t mtu) {
     sock->n_maxlen_tx = mtu;
 }
 
+void patty_ax25_sock_ack_set(patty_ax25_sock *sock, time_t ack) {
+    sock->n_ack = (time_t)ack;
+}
+
 void patty_ax25_sock_window_set(patty_ax25_sock *sock, size_t window) {
     sock->n_window_tx = window;
 }