From 74acc90d23fed988f5523c7dc1f72be587e34250 Mon Sep 17 00:00:00 2001
From: arendst <mhtarends@gmail.com>
Date: Tue, 26 Sep 2017 17:50:39 +0200
Subject: [PATCH] Fix yield panics

---
 sonoff/support.ino | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/sonoff/support.ino b/sonoff/support.ino
index f9269de89..3a2ba2250 100644
--- a/sonoff/support.ino
+++ b/sonoff/support.ino
@@ -17,6 +17,9 @@
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
+IPAddress syslog_host_addr;  // Syslog host IP address
+unsigned long syslog_host_refresh = 0;
+
 /*********************************************************************************************\
  * Watchdog extension (https://github.com/esp8266/Arduino/issues/1532)
 \*********************************************************************************************/
@@ -1153,8 +1156,11 @@ void syslog()
   // Destroys log_data
   char syslog_preamble[64];  // Hostname + Id
 
-  yield();  // Fix possible UDP syslog blocking
-  if (portUDP.beginPacket(sysCfg.syslog_host, sysCfg.syslog_port)) {
+  if ((static_cast<uint32_t>(syslog_host_addr) == 0) || ((millis() - syslog_host_refresh) > 60000)) {
+    WiFi.hostByName(sysCfg.syslog_host, syslog_host_addr);
+    syslog_host_refresh = millis();
+  }
+  if (portUDP.beginPacket(syslog_host_addr, sysCfg.syslog_port)) {
     snprintf_P(syslog_preamble, sizeof(syslog_preamble), PSTR("%s ESP-"), Hostname);
     memmove(log_data + strlen(syslog_preamble), log_data, sizeof(log_data) - strlen(syslog_preamble));
     log_data[sizeof(log_data) -1] = '\0';