sockets: use error class to pass listen error

Add a new argument in inet_listen()/inet_listen_opts()
to pass back listen error.

Change nbd, qemu-char, vnc to use new interface.

Signed-off-by: Amos Kong <akong@redhat.com>
Reviewed-by: Orit Wasserman <owasserm@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/ui/vnc.c b/ui/vnc.c
index 3ae7704..be384a5 100644
--- a/ui/vnc.c
+++ b/ui/vnc.c
@@ -3088,7 +3088,8 @@ int vnc_display_open(DisplayState *ds, const char *display)
             pstrcpy(dpy, 256, "unix:");
             vs->lsock = unix_listen(display+5, dpy+5, 256-5);
         } else {
-            vs->lsock = inet_listen(display, dpy, 256, SOCK_STREAM, 5900);
+            vs->lsock = inet_listen(display, dpy, 256,
+                                    SOCK_STREAM, 5900, NULL);
         }
         if (-1 == vs->lsock) {
             g_free(dpy);