52 lines
1.7 KiB
Diff
52 lines
1.7 KiB
Diff
From d6a6c617a00a1595bcc56c9f1d823189ad8ba43e Mon Sep 17 00:00:00 2001
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From: Paolo Bonzini <pbonzini@redhat.com>
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Date: Wed, 10 Oct 2012 14:30:58 +0200
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Subject: [PATCH] vnc: fix "info vnc" with "-vnc ..., reverse=on"
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When reverse connection is in use, there is no active VNC server
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socket. Because of this, getsockopt(-1, ...) is attempted and
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the following error is emitted:
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$ socat TCP-LISTEN:5900,reuseaddr TCP-LISTEN:5901,reuseaddr &
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$ x86_64-softmmu/qemu-system-x86_64 -vnc localhost:5900,reverse -monitor stdio
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QEMU 1.2.50 monitor - type 'help' for more information
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(qemu) info vnc
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An undefined error has occurred
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Because however the host, family, service and auth fields are
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optional, we can just exit if there is no active server socket.
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$ x86_64-softmmu/qemu-system-x86_64 -vnc localhost:5900,reverse -monitor stdio
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QEMU 1.2.50 monitor - type 'help' for more information
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(qemu) info vnc
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Server:
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Client:
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address: 127.0.0.1:5900
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x509_dname: none
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username: none
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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(cherry picked from commit 417b0b88904fe1dd8c41bff8092dfbab0134d9cb)
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Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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---
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ui/vnc.c | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/ui/vnc.c b/ui/vnc.c
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index 18ec101..66ae930 100644
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--- a/ui/vnc.c
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+++ b/ui/vnc.c
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@@ -372,6 +372,10 @@ VncInfo *qmp_query_vnc(Error **errp)
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}
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}
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+ if (vnc_display->lsock == -1) {
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+ return info;
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+ }
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+
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if (getsockname(vnc_display->lsock, (struct sockaddr *)&sa,
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&salen) == -1) {
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error_set(errp, QERR_UNDEFINED_ERROR);
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