Adam Green / EthernetInterface

Deprecated fork of old network stack source from github. Please use official library instead: https://mbed.org/users/mbed_official/code/EthernetInterface/

Diff: lwip/core/tcp_out.c

Revision:
1:eadc868c2acf
Parent:
0:3b00827bb0b7
--- a/lwip/core/tcp_out.c	Sat Sep 07 21:38:42 2013 +0000
+++ b/lwip/core/tcp_out.c	Sat Oct 26 08:51:36 2013 +0000
@@ -646,6 +646,9 @@
     last_unsent->len += concat_p->tot_len;
 #if TCP_CHECKSUM_ON_COPY
     if (concat_chksummed) {
+      if (concat_chksum_swapped) {
+        concat_chksum = SWAP_BYTES_IN_WORD(concat_chksum);
+      }
       tcp_seg_add_chksum(concat_chksum, concat_chksummed, &last_unsent->chksum,
         &last_unsent->chksum_swapped);
       last_unsent->flags |= TF_SEG_DATA_CHECKSUMMED;