Changeset 6df418c4 in mainline for uspace/srv/net/tl/tcp/segment.c

Timestamp:

2011-10-24T04:23:23Z (13 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

6e88fea

Parents:

f343a16

Message:

Retransmission queue, detect ACK of FIN.

File:

• uspace/srv/net/tl/tcp/segment.c (modified) (1 diff)

uspace/srv/net/tl/tcp/segment.c

@@ -53 +53 @@
 }
 
+/** Create duplicate of segment.
+ *
+ * @param seg   Segment
+ * @return      Duplicate segment
+ */
+tcp_segment_t *tcp_segment_dup(tcp_segment_t *seg)
+{
+        tcp_segment_t *scopy;
+        size_t tsize;
+
+        scopy = tcp_segment_new();
+        if (scopy == NULL)
+                return NULL;
+
+        scopy->ctrl = seg->ctrl;
+        scopy->seq = seg->seq;
+        scopy->ack = seg->ack;
+        scopy->len = seg->len;
+        scopy->wnd = seg->wnd;
+        scopy->up = seg->up;
+
+        tsize = tcp_segment_text_size(seg);
+        scopy->data = calloc(tsize, 1);
+        if (scopy->data == NULL) {
+                free(scopy);
+                return NULL;
+        }
+
+        memcpy(scopy->data, seg->data, tsize);
+        scopy->dfptr = scopy->data;
+
+        return scopy;
+}
+
 /** Create a control-only segment.
  *