From 4dbce1a0aa57e1712d6e0166b428ecdd59b44f3c Mon Sep 17 00:00:00 2001
From: Mike Black W9MDB <mdblack98@yahoo.com>
Date: Sun, 2 Oct 2022 08:06:50 -0500
Subject: [PATCH] Add setvbuf to rigctl.c and rigctld.d to overcome
 non-buffering of stderr on mingw builds. Should also speed up other OS's too
 since only 1 flush will be executed instead of 2

---
 tests/rigctl.c  | 4 ++++
 tests/rigctld.c | 5 +++++
 2 files changed, 9 insertions(+)

diff --git a/tests/rigctl.c b/tests/rigctl.c
index c90064686..8adc9c34e 100644
--- a/tests/rigctl.c
+++ b/tests/rigctl.c
@@ -151,6 +151,10 @@ int main(int argc, char *argv[])
     int ext_resp = 0;
     int i;
     char rigstartup[1024];
+    char vbuf[1024];
+
+    int err = setvbuf(stderr, vbuf, _IOFBF, sizeof(vbuf));
+    if (err) rig_debug(RIG_DEBUG_ERR, "%s: setvbuf err=%s\n", __func__, strerror(err));
 
     while (1)
     {
diff --git a/tests/rigctld.c b/tests/rigctld.c
index 364569a64..5686a2929 100644
--- a/tests/rigctld.c
+++ b/tests/rigctld.c
@@ -267,6 +267,7 @@ int main(int argc, char *argv[])
     char host[NI_MAXHOST];
     char serv[NI_MAXSERV];
     char rigstartup[1024];
+    char vbuf[1024];
 #if HAVE_SIGACTION
     struct sigaction act;
 #endif
@@ -282,6 +283,10 @@ int main(int argc, char *argv[])
 
     is_rigctld = 1;
 
+    int err = setvbuf(stderr, vbuf, _IOFBF, sizeof(vbuf));
+    if (err) rig_debug(RIG_DEBUG_ERR, "%s: setvbuf err=%s\n", __func__, strerror(err));
+
+
     while (1)
     {
         int c;