[vlc-commits] poll: deal with invalid file descriptors more like specified
Rémi Denis-Courmont
git at videolan.org
Sun Aug 17 15:29:43 CEST 2014
vlc | branch: master | Rémi Denis-Courmont <remi at remlab.net> | Sun Aug 17 16:28:36 2014 +0300| [5ac516c9c7a2acfdc5b8f9d94eb3833efa7f26cc] | committer: Rémi Denis-Courmont
poll: deal with invalid file descriptors more like specified
> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=5ac516c9c7a2acfdc5b8f9d94eb3833efa7f26cc
---
compat/poll.c | 27 ++++++++++++++++++++++++++-
1 file changed, 26 insertions(+), 1 deletion(-)
diff --git a/compat/poll.c b/compat/poll.c
index 8c37609..21e6d59 100644
--- a/compat/poll.c
+++ b/compat/poll.c
@@ -114,7 +114,32 @@ int (poll) (struct pollfd *fds, unsigned nfds, int timeout)
val = select (val + 1, rdset, wrset, exset,
(timeout >= 0) ? &tv : NULL);
if (val == -1)
- return -1;
+ {
+#ifndef _WIN32
+ if (errno != EBADF)
+#else
+ if (WSAGetLastError () != WSAENOTSOCK)
+#endif
+ return -1;
+
+ val = 0;
+
+ for (unsigned i = 0; i < nfds; i++)
+#ifndef _WIN32
+ if (fcntl (fds[i].fd, F_GETFD) == -1)
+#else
+ if (getsockopt (fds[i].fd, SOL_SOCKET, SO_REUSEADDR,
+ &(DWORD){ 0 }, &(int){ sizeof (DWORD) }) != 0)
+#endif
+ {
+ fds[i].revents = POLLNVAL;
+ val++;
+ }
+ else
+ fds[i].revents = 0;
+
+ return val ? val : -1;
+ }
for (unsigned i = 0; i < nfds; i++)
{
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