From: Nathael Pajani <nathael.pajani@ed3l.fr>
Date: Sat, 16 Mar 2019 16:26:49 +0000 (+0100)
Subject: Use memcpy as data may not be word aligned
X-Git-Url: http://git.techno-innov.fr/?a=commitdiff_plain;h=db72ed31bfea37d27ec9a3465e8534b4f48b4748;p=soft%2Flpc122x%2Fcore

Use memcpy as data may not be word aligned
---

diff --git a/lib/protocols/mqtt.c b/lib/protocols/mqtt.c
index d9e9ef3..d11a809 100644
--- a/lib/protocols/mqtt.c
+++ b/lib/protocols/mqtt.c
@@ -330,7 +330,7 @@ int mqtt_unpack_publish_packet(struct mqtt_publish_pkt* pkt, uint8_t* buf, uint3
 		return -EPROTO;
 	}
 	/* Decode topic string */
-	tmp = *((uint16_t*)(buf + idx));
+	memcpy(&tmp, (buf + idx), 2);
 	topic_len = ntohs(tmp);
 	pkt->topic.name = (char*)(buf + idx + 2);
 	idx += topic_len + 2;
@@ -338,9 +338,9 @@ int mqtt_unpack_publish_packet(struct mqtt_publish_pkt* pkt, uint8_t* buf, uint3
 		return -EPROTO;
 	}
 	/* Decode packet ID */
-	tmp = *((uint16_t*)(buf + idx));
-	pkt->packet_id = ntohs(tmp);
 	idx += 2;
+		memcpy(&tmp, (buf + idx), 2);
+		pkt->packet_id = ntohs(tmp);
 	/* Get application message */
 	pkt->message_size = size - idx;
 	if (pkt->message_size != 0) {