select HUP

diff --git a/lib/tevent/tevent_select.c b/lib/tevent/tevent_select.c
index 9dfe703793233de4d5bdcabc80bfae782176800c..9c292ed84de558cca74b6c525ed5b6088ff66941 100644 (file)
--- a/lib/tevent/tevent_select.c
+++ b/lib/tevent/tevent_select.c
@@ -214,8 +214,26 @@ static int select_event_loop_select(struct select_event_context *select_ev, stru
                for (fde = select_ev->ev->fd_events; fde; fde = fde->next) {
                        uint16_t flags = 0;
 
-                       if (FD_ISSET(fde->fd, &r_fds) && (fde->flags & TEVENT_FD_READ)) {
-                               flags |= TEVENT_FD_READ;
+                       if (FD_ISSET(fde->fd, &r_fds)) {
+                               int saved_errno = errno;
+                               int available = 0;
+                               int ret;
+
+                               if (fde->flags & TEVENT_FD_READ) {
+                                       flags |= TEVENT_FD_READ;
+                               }
+
+                               /* support for POLLHUP */
+                               ret = ioctl(fde->fd, FIONREAD, &available);
+                               if ((ret == -1) || (available == 0)) {
+                                       /*
+                                        * We should not report TEVENT_FD_WRITE,
+                                        * after getting EOF.
+                                        */
+                                       fde->flags &= ~TEVENT_FD_WRITE;
+                               }
+                               errno = saved_errno;
+
                        }
                        if (FD_ISSET(fde->fd, &w_fds) && (fde->flags & TEVENT_FD_WRITE)) {
                                flags |= TEVENT_FD_WRITE;