--- libaitmqtt/src/cliside.c	2012/04/07 21:02:48	1.1.2.2
+++ libaitmqtt/src/cliside.c	2012/05/01 01:12:16	1.1.2.3
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@openbsd-bg.org>
 *
 * $Author: misho $
-* $Id: cliside.c,v 1.1.2.2 2012/04/07 21:02:48 misho Exp $
+* $Id: cliside.c,v 1.1.2.3 2012/05/01 01:12:16 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -46,3 +46,76 @@ SUCH DAMAGE.
 #include "global.h"
 
 
+/*
+ * mqtt_cli_Open() - Open client connection to MQTT broker
+ *
+ * @addr = brokers address
+ * return: NULL error or !=NULL connected to broker
+ */
+mqtt_cli_t *
+mqtt_cli_Open(struct sockaddr *addr)
+{
+	mqtt_cli_t *cli;
+
+	if (!addr)
+		return NULL;
+
+	cli = malloc(sizeof(mqtt_cli_t));
+	if (!cli) {
+		LOGERR;
+		return NULL;
+	} else
+		memset(cli, 0, sizeof(mqtt_cli_t));
+
+	cli->sock = socket(addr->sa_family, SOCK_STREAM, IPPROTO_TCP);
+	if (cli->sock == -1) {
+		LOGERR;
+		free(cli);
+		return NULL;
+	}
+	if (connect(cli->sock, addr, addr->sa_len) == -1) {
+		LOGERR;
+		close(cli->sock);
+		free(cli);
+		return NULL;
+	}
+
+	cli->buf = mqtt_msgAlloc(USHRT_MAX);
+	if (!cli->buf) {
+		close(cli->sock);
+		free(cli);
+		return NULL;
+	}
+
+	return cli;
+}
+
+/*
+ * mqtt_cli_Close() - Close client connection
+ *
+ * @cli = connected client
+ * return: -1 error or 0 disconnected client and freed all resources
+ */
+int
+mqtt_cli_Close(mqtt_cli_t ** __restrict cli)
+{
+	int siz = 0;
+
+	if (!cli || !*cli)
+		return -1;
+
+	/* send disconnect */
+	siz = mqtt_msgDISCONNECT((*cli)->buf);
+	if (siz > -1) {
+		siz = send((*cli)->sock, (*cli)->buf->msg_base, siz, MSG_NOSIGNAL);
+		if (siz > -1)
+			shutdown((*cli)->sock, SHUT_RDWR);
+	}
+	close((*cli)->sock);
+
+	mqtt_msgFree(&(*cli)->buf, 42);
+
+	free(*cli);
+	*cli = NULL;
+	return 0;
+}