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-rw-r--r--winsup/cygwin/fhandler_socket.cc5
1 files changed, 5 insertions, 0 deletions
diff --git a/winsup/cygwin/fhandler_socket.cc b/winsup/cygwin/fhandler_socket.cc
index 99e0d18e5..63f28fb27 100644
--- a/winsup/cygwin/fhandler_socket.cc
+++ b/winsup/cygwin/fhandler_socket.cc
@@ -1241,6 +1241,11 @@ fhandler_socket::ioctl (unsigned int cmd, void *p)
*(int *) p ? "started" : "cancelled");
set_async (*(int *) p);
break;
+ case FIONREAD:
+ res = ioctlsocket (get_socket (), FIONREAD, (unsigned long *) p);
+ if (res == SOCKET_ERROR)
+ set_winsock_errno ();
+ break;
default:
/* We must cancel WSAAsyncSelect (if any) before setting socket to
* blocking mode