[libvirt] [PATCH] virsh: domain: Fix output of the VNC display number for domdisplay

[Peter Krempa]

Commit 9976c4b9a665f10ab0d2071954efb7f432d194eb broke the output for VNC
displays as the port number is converted to VNC display number by
subtracting 5900. This yields port 0 for the first display and thus the
output would be skipped.

Before:
 $ virsh domdisplay VM
 vnc://localhost

After:
 $ tools/virsh domdisplay VM
 vnc://localhost:0
---
 tools/virsh-domain.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c
index 54d8867..d8183ee 100644
--- a/tools/virsh-domain.c
+++ b/tools/virsh-domain.c
@@ -9392,12 +9392,6 @@ cmdDomDisplay(vshControl *ctl, const vshCmd *cmd)
         passwd = virXPathString(xpath, ctxt);
         VIR_FREE(xpath);

-        if (STREQ(scheme[iter], "vnc")) {
-            /* VNC protocol handlers take their port number as
-             * 'port' - 5900 */
-            port -= 5900;
-        }
-
         /* Build up the full URI, starting with the scheme */
         virBufferAsprintf(&buf, "%s://", scheme[iter]);

@@ -9416,8 +9410,15 @@ cmdDomDisplay(vshControl *ctl, const vshCmd *cmd)
             virBufferAsprintf(&buf, "%s", listen_addr);

         /* Add the port */
-        if (port)
+        if (port) {
+            if (STREQ(scheme[iter], "vnc")) {
+                /* VNC protocol handlers take their port number as
+                 * 'port' - 5900 */
+                port -= 5900;
+            }
+
             virBufferAsprintf(&buf, ":%d", port);
+        }

         /* TLS Port */
         if (tls_port) {
-- 
1.9.2