Fix alignment problem on arm.

[bertos.git] / bertos / net / pocketbus.c

diff --git a/bertos/net/pocketbus.c b/bertos/net/pocketbus.c
index a9cb4727c162362e7f594a702c5853e0c350a756..61d4d2b44261432885e33fa0bb81050a5c8d7330 100644 (file)
--- a/bertos/net/pocketbus.c
+++ b/bertos/net/pocketbus.c
@@ -208,12 +208,16 @@ bool pocketbus_recv(struct PocketBusCtx *ctx, struct PocketMsg *msg)
 
                                /* Compute checksum */
                                rotating_update(ctx->buf, ctx->len, &ctx->in_cks);
-                               rotating_t recv_cks = be16_to_cpu(*((rotating_t *)(ctx->buf + ctx->len)));
+                               uint8_t cks_h = *(ctx->buf + ctx->len);
+                               uint8_t cks_l = *(ctx->buf + ctx->len + 1);
+
+                               rotating_t recv_cks = (cks_h << 8) | cks_l;
 
                                /* Checksum check */
                                if (recv_cks == ctx->in_cks)
                                {
-                                       PocketBusHdr *hdr = (PocketBusHdr *)(ctx->buf);
+                                       PocketBusHdr *hdr = (PocketBusHdr *)ctx;
+
                                        /* Check packet version */
                                        if (hdr->ver == POCKETBUS_VER)
                                        {