# RE: [PATCH v5 4/4] make poll() work on platforms that can't recv() on a non-socket

1 messages from 2012-09-13 to 2012-09-13. Participants: Joachim Schmitz.
Thread: https://gitlist.dev/t/31518

## Joachim Schmitz, 2012-09-13 07:12

Subject: RE: [PATCH v5 4/4] make poll() work on platforms that can't recv() on a non-socket
Message-ID: <002601cd917f$2d3e1590$87ba40b0$@schmitz-digital.de>
URL: https://gitlist.dev/e/002601cd917f%242d3e1590%2487ba40b0%24%40schmitz-digital.de

```
This way it just got added to gnulib too.

Signed-off-by: Joachim Schmitz <jojo@schmitz-digital.de>
---
 compat/poll/poll.c | 5 +++++
 1 file changed, 4 insertions(+)

diff --git a/compat/poll/poll.c b/compat/poll/poll.c
index e4b8319..10a204e 100644
--- a/compat/poll/poll.c
+++ b/compat/poll/poll.c
@@ -306,6 +306,10 @@ compute_revents (int fd, int sought, fd_set *rfds, fd_set *wfds, fd_set *efds)
 	       || socket_errno == ECONNABORTED || socket_errno == ENETRESET)
 	happened |= POLLHUP;
 
+      /* some systems can't use recv() on non-socket, including HP NonStop */
+      else if (socket_errno == ENOTSOCK)
+	happened |= (POLLIN | POLLRDNORM) & sought;
+
       else
 	happened |= POLLERR;
     }
-- 
1.7.12

```