[Qemu-devel] [PULL 3/4] qemu-socket: set passed fd non-blocking in socket_connect()

[Luiz Capitulino <lcapitulino@redhat.com>]

From: Stefan Hajnoczi <stefanha@redhat.com>

socket_connect() sets non-blocking on TCP or UNIX domain sockets if a
callback function is passed.  Do the same for file descriptor passing,
otherwise we could unexpectedly be using a blocking file descriptor.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
---
 util/qemu-sockets.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c
index b632a74..94581aa 100644
--- a/util/qemu-sockets.c
+++ b/util/qemu-sockets.c
@@ -910,6 +910,7 @@ int socket_connect(SocketAddress *addr, Error **errp,
     case SOCKET_ADDRESS_KIND_FD:
         fd = monitor_get_fd(cur_mon, addr->fd->str, errp);
         if (callback) {
+            qemu_set_nonblock(fd);
             callback(fd, opaque);
         }
         break;
-- 
1.8.1.4