* xgselect.c (xg_select): Clear file descriptors not set from rfds and wfds.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/xgselect.c b/src/xgselect.c
index d93c1bdf405..a06713458a0 100644
--- a/src/xgselect.c
+++ b/src/xgselect.c
@@ -113,11 +113,17 @@ xg_select (max_fds, rfds, wfds, efds, timeout)
               if (rfds && FD_ISSET (i, rfds)) ++retval;
               else ++our_fds;
             }
+          else if (rfds)
+            FD_CLR (i, rfds);
+
           if (have_wfds && FD_ISSET (i, &all_wfds))
             {
               if (wfds && FD_ISSET (i, wfds)) ++retval;
               else ++our_fds;
             }
+          else if (wfds)
+            FD_CLR (i, wfds);
+
           if (efds && FD_ISSET (i, efds))
             ++retval;
         }