From: Stefan Metzmacher <metze@samba.org>
Date: Thu, 28 Feb 2013 13:44:22 +0000 (+0100)
Subject: select HUP
X-Git-Url: http://git.samba.org/?p=metze%2Fsamba%2Fwip.git;a=commitdiff_plain;h=9d49c0b583a289b3f60f8ba03945a83ea3cee953

select HUP
---

diff --git a/lib/tevent/tevent_select.c b/lib/tevent/tevent_select.c
index 9dfe70379323..9c292ed84de5 100644
--- 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;