check if server is shutting down

libxrdp/libxrdp.c

@@ -74,11 +74,20 @@ libxrdp_process_data(struct xrdp_session* session)
   int cont;
   int rv;
   int code;
+  int term;
 
+  term = 0;
   cont = 1;
   rv = 0;
-  while ((cont || !session->up_and_running) && !session->term)
+  while ((cont || !session->up_and_running) && !term)
   {
+    if (session->is_term != 0)
+    {
+      if (session->is_term())
+      {
+        term = 1;
+      }
+    }
     code = 0;
     if (xrdp_rdp_recv((struct xrdp_rdp*)session->rdp, session->s, &code) != 0)
     {
@@ -104,7 +113,7 @@ libxrdp_process_data(struct xrdp_session* session)
         {
           DEBUG(("libxrdp_process_data returned non zero"));
           cont = 0;
-          session->term = 1;
+          term = 1;
         }
         break;
       default:

libxrdp/libxrdpinc.h

@@ -98,7 +98,6 @@ struct xrdp_session
 {
   long id;
   int sck;
-  int term; /* do we need this */
   int (*callback)(long id, int msg, long param1, long param2, long param3,
                   long param4);
   void* rdp;
@@ -106,6 +105,7 @@ struct xrdp_session
   struct xrdp_client_info* client_info;
   int up_and_running;
   struct stream* s;
+  int (*is_term)(void);
 };
 
 struct xrdp_session* DEFAULT_CC

libxrdp/xrdp_tcp.c

@@ -57,6 +57,7 @@ int APP_CC
 xrdp_tcp_recv(struct xrdp_tcp* self, struct stream* s, int len)
 {
   int rcvd;
+  struct xrdp_session* session;
 
   if (self->sck_closed)
   {
@@ -64,6 +65,7 @@ xrdp_tcp_recv(struct xrdp_tcp* self, struct stream* s, int len)
     return 1;
   }
   DEBUG(("    in xrdp_tcp_recv, gota get %d bytes", len));
+  session = self->iso_layer->mcs_layer->sec_layer->rdp_layer->session;
   init_stream(s, len);
   while (len > 0)
   {
@@ -72,7 +74,17 @@ xrdp_tcp_recv(struct xrdp_tcp* self, struct stream* s, int len)
     {
       if (g_tcp_last_error_would_block(self->sck))
       {
-        g_tcp_can_recv(self->sck, 10);
+        if (!g_tcp_can_recv(self->sck, 10))
+        {
+          if (session->is_term != 0)
+          {
+            if (session->is_term())
+            {
+              DEBUG(("    out xrdp_tcp_recv, terminated"));
+              return 1;
+            }
+          }
+        }
       }
       else
       {
@@ -105,6 +117,7 @@ xrdp_tcp_send(struct xrdp_tcp* self, struct stream* s)
   int len;
   int total;
   int sent;
+  struct xrdp_session* session;
 
   if (self->sck_closed)
   {
@@ -113,6 +126,7 @@ xrdp_tcp_send(struct xrdp_tcp* self, struct stream* s)
   }
   len = s->end - s->data;
   DEBUG(("    in xrdp_tcp_send, gota send %d bytes", len));
+  session = self->iso_layer->mcs_layer->sec_layer->rdp_layer->session;
   total = 0;
   while (total < len)
   {
@@ -121,7 +135,17 @@ xrdp_tcp_send(struct xrdp_tcp* self, struct stream* s)
     {
       if (g_tcp_last_error_would_block(self->sck))
       {
-        g_tcp_can_send(self->sck, 10);
+        if (!g_tcp_can_send(self->sck, 10))
+        {
+          if (session->is_term != 0)
+          {
+            if (session->is_term())
+            {
+              DEBUG(("    out xrdp_tcp_send, terminated"));
+              return 1;
+            }
+          }
+        }
       }
       else
       {