Improved debug messages in xfr-handler.

src/knot/server/server.c

@@ -124,7 +124,7 @@ static int server_init_iface(iface_t *new_if, conf_iface_t *cfg_if)
 	/* Initialize interface. */
 	int ret = 0;
 	int sock = 0;
-	char errbuf[128] = {0};
+	char errbuf[256] = {0};
 	int opt = 1024 * 1024;
 	int snd_opt = 1024 * 1024;
 	memset(new_if, 0, sizeof(iface_t));
@@ -153,7 +153,7 @@ static int server_init_iface(iface_t *new_if, conf_iface_t *cfg_if)
 	new_if->type[UDP_ID] = cfg_if->family;
 
 	/* Set socket options - voluntary. */
-	char ebuf[512] = {0};
+	char ebuf[256] = {0};
 	if (setsockopt(sock, SOL_SOCKET, SO_SNDBUF, &snd_opt, sizeof(snd_opt)) < 0) {
 		strerror_r(errno, ebuf, sizeof(ebuf));	
 //		log_server_warning("Failed to configure socket "

src/knot/server/xfr-handler.c

@@ -763,7 +763,14 @@ static int xfr_client_start(xfrworker_t *w, knot_ns_xfr_t *data)
 		}
 		
 		/* Free data updated in this processing. */
-		evqueue_write(nextw->q, data, sizeof(knot_ns_xfr_t));
+		ret = evqueue_write(nextw->q, data, sizeof(knot_ns_xfr_t));
+		if (ret != sizeof(knot_ns_xfr_t)) {
+			char ebuf[256] = {0};
+			strerror_r(errno, ebuf, sizeof(ebuf));
+			dbg_xfr("xfr: couldn't write request to evqueue: %s\n",
+			        ebuf)
+			return KNOTD_ERROR;
+		}
 		return KNOTD_EOK;
 	} else {
 		zd->xfr_in.wrkr = w;
@@ -872,10 +879,10 @@ static int xfr_client_start(xfrworker_t *w, knot_ns_xfr_t *data)
 	/* Start transfer. */
 	ret = data->send(data->session, &data->addr, data->wire, bufsize);
 	if (ret != bufsize) {
-		char buf[256] = {0};
-		strerror_r(errno, buf, sizeof(buf));
+		char ebuf[256] = {0};
+		strerror_r(errno, ebuf, sizeof(ebuf));
 		log_server_info("%s Failed to send query (%s).\n",
-		                data->msgpref, buf);
+		                data->msgpref, ebuf);
 		pthread_mutex_unlock(&zd->xfr_in.lock);
 		close(data->session);
 		data->session = -1;