Add specific daemons node stdin error handler

to address issue #960

utility/daemon/daemon.js

@@ -50,9 +50,9 @@ module.exports = function(RED) {
                         if (node.cr === true) { msg.payload += "\n"; }
                     }
                     node.debug("inp: "+msg.payload);
+                    lastmsg = msg;
                     if (node.child !== null && node.running) { node.child.stdin.write(msg.payload); }
                     else { node.warn(RED._("daemon.errors.notrunning")); }
-                    lastmsg = msg;
                 }
             }
         }
@@ -65,7 +65,7 @@ module.exports = function(RED) {
             }
             let args = node.args;
             if (appendArgs !== undefined && appendArgs.length > 0) {
-              args = args.concat(appendArgs);
+                args = args.concat(appendArgs);
             }
 
             try {
@@ -120,6 +120,12 @@ module.exports = function(RED) {
                     else { node.log('error: ' + err); }
                     node.status({fill:"red",shape:"ring",text:RED._("daemon.status.error")});
                 });
+
+                node.child.stdin.on('error', function (err) {
+                    if (err.errno === "EPIPE") { node.error(RED._("daemon.errors.pipeclosed"),lastmsg); }
+                    else { node.log('error: ' + err); }
+                    node.status({fill:"red",shape:"ring",text:RED._("daemon.status.error")});
+                });
             }
             catch(e) {
                 if (e.errno === "ENOENT") { node.warn(RED._("daemon.errors.notfound")); }

utility/daemon/locales/en-US/daemon.json

@@ -37,7 +37,8 @@
             "notrunning": "Command not running",
             "notfound": "Command not found",
             "notexecutable": "Command not executable",
-            "restarting": "Restarting"
+            "restarting": "Restarting",
+            "pipeclosed": "Process closed"
         }
     }
 }

utility/daemon/package.json

@@ -1,6 +1,6 @@
 {
     "name"          : "node-red-node-daemon",
-    "version"       : "0.5.0",
+    "version"       : "0.5.1",
     "description"   : "A Node-RED node that runs and monitors a long running system command.",
     "dependencies"  : {
     },