virsh: Implement managedsave-dumpxml command

Add a simple virsh command handler which makes use of the new API.

Signed-off-by: Kothapally Madhu Pavan <kmp@linux.vnet.ibm.com>

tools/virsh-domain.c

@@ -4704,6 +4704,54 @@ cmdManagedSaveRemove(vshControl *ctl, const vshCmd *cmd)
     return ret;
 }
 
+/*
+ * "managedsave-dumpxml" command
+ */
+static const vshCmdInfo info_managed_save_dumpxml[] = {
+   {.name = "help",
+    .data = N_("Domain information of managed save state file in XML")
+   },
+   {.name = "desc",
+    .data = N_("Dump XML of domain information for a managed save state file to stdout.")
+   },
+   {.name = NULL}
+};
+
+static const vshCmdOptDef opts_managed_save_dumpxml[] = {
+    VIRSH_COMMON_OPT_DOMAIN_FULL,
+    {.name = "security-info",
+     .type = VSH_OT_BOOL,
+     .help = N_("include security sensitive information in XML dump")
+    },
+    {.name = NULL}
+};
+
+static bool
+cmdManagedSaveDumpxml(vshControl *ctl, const vshCmd *cmd)
+{
+    bool ret = false;
+    virDomainPtr dom = NULL;
+    unsigned int flags = 0;
+    char *xml = NULL;
+
+    if (vshCommandOptBool(cmd, "security-info"))
+        flags |= VIR_DOMAIN_XML_SECURE;
+
+    if (!(dom = virshCommandOptDomain(ctl, cmd, NULL)))
+        goto cleanup;
+
+    if (!(xml = virDomainManagedSaveGetXMLDesc(dom, flags)))
+        goto cleanup;
+
+    vshPrint(ctl, "%s", xml);
+    ret = true;
+
+ cleanup:
+    virshDomainFree(dom);
+    VIR_FREE(xml);
+    return ret;
+}
+
 /*
  * "managedsave-define" command
  */
@@ -13958,6 +14006,12 @@ const vshCmdDef domManagementCmds[] = {
      .info = info_managedsaveremove,
      .flags = 0
     },
+    {.name = "managedsave-dumpxml",
+     .handler = cmdManagedSaveDumpxml,
+     .opts = opts_managed_save_dumpxml,
+     .info = info_managed_save_dumpxml,
+     .flags = 0
+    },
     {.name = "managedsave-define",
      .handler = cmdManagedSaveDefine,
      .opts = opts_managed_save_define,

tools/virsh.pod

@@ -1642,6 +1642,12 @@ running or paused state.  Normally, this command does not alter the
 recorded state; passing either the I<--running> or I<--paused> flag
 will allow overriding which state the B<start> should use.
 
+=item B<managedsave-dumpxml> I<domain> [I<--security-info>]
+
+Extract the domain XML that was in effect at the time the saved state
+file I<file> was created with the B<managedsave> command.  Using
+I<--security-info> will also include security sensitive information.
+
 =item B<maxvcpus> [I<type>]
 
 Provide the maximum number of virtual CPUs supported for a guest VM on