Fix a memory leak

svn path=/trunk/; revision=20503

diff --git a/reactos/drivers/lib/oskittcp/oskittcp/tcp_output.c b/reactos/drivers/lib/oskittcp/oskittcp/tcp_output.c
index 3cefe69..5f51c92 100644 (file)
--- a/reactos/drivers/lib/oskittcp/oskittcp/tcp_output.c
+++ b/reactos/drivers/lib/oskittcp/oskittcp/tcp_output.c
@@ -69,7 +69,6 @@ extern struct mbuf *m_copypack();
 #define IS_LOOPBACK_ADDR(addr) \
   ((ntohl(addr) & IN_CLASSA_NET) == (IN_LOOPBACKNET << IN_CLASSA_NSHIFT))
 
-
 /*
  * Tcp output routine: figure out what should be sent and send it.
  */
@@ -87,6 +86,9 @@ tcp_output(tp)
        int idle, sendalot;
        struct rmxp_tao *taop;
        struct rmxp_tao tao_noncached;
+#ifdef __REACTOS__
+       struct mbuf *n;
+#endif
 
        OS_DbgPrint(OSK_MID_TRACE,("Called\n"));
 
@@ -732,6 +734,18 @@ send:
 #endif
        error = ip_output(m, tp->t_inpcb->inp_options, &tp->t_inpcb->inp_route,
                          so->so_options & SO_DONTROUTE, 0);
+#ifdef __REACTOS__
+       /* We allocated m, so we are responsible for freeing it. If the mbuf
+           contains a pointer to an external datablock, we (or rather, m_copy)
+           didn't allocate it but pointed it to the data to send. So we have
+           to cheat a little bit and keep M_FREE from freeing the external
+           data block */
+       while (NULL != m) {
+           m->m_flags &= ~M_EXT;
+           MFREE(m, n);
+           m = n;
+       }
+#endif
     }
        if (error) {
 out: