virsh: Use virXPath wrappers for vncdisplay cmd

Update the vncdisplay command to use the virXPath wrappers as well as
check if the domain is up rather than using the port set to -1 to mean
the domain is not up.

Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
This commit is contained in:
Doug Goldstein 2012-06-24 16:36:00 -05:00 committed by Peter Krempa
parent acbd4965c4
commit dcbfd57214

View File

@ -13844,12 +13844,12 @@ static bool
cmdVNCDisplay(vshControl *ctl, const vshCmd *cmd)
{
xmlDocPtr xml = NULL;
xmlXPathObjectPtr obj = NULL;
xmlXPathContextPtr ctxt = NULL;
virDomainPtr dom;
bool ret = false;
int port = 0;
char *doc;
char *doc = NULL;
char *listen_addr = NULL;
if (!vshConnectionUsability(ctl, ctl->conn))
return false;
@ -13857,38 +13857,37 @@ cmdVNCDisplay(vshControl *ctl, const vshCmd *cmd)
if (!(dom = vshCommandOptDomain(ctl, cmd, NULL)))
return false;
doc = virDomainGetXMLDesc(dom, 0);
if (!doc)
goto cleanup;
xml = virXMLParseStringCtxt(doc, _("(domain_definition)"), &ctxt);
VIR_FREE(doc);
if (!xml)
goto cleanup;
obj = xmlXPathEval(BAD_CAST "string(/domain/devices/graphics[@type='vnc']/@port)", ctxt);
if (obj == NULL || obj->type != XPATH_STRING ||
obj->stringval == NULL || obj->stringval[0] == 0) {
/* Check if the domain is active and don't rely on -1 for this */
if (!virDomainIsActive(dom)) {
vshError(ctl, _("Domain is not running"));
goto cleanup;
}
if (virStrToLong_i((const char *)obj->stringval, NULL, 10, &port) || port < 0)
goto cleanup;
xmlXPathFreeObject(obj);
obj = xmlXPathEval(BAD_CAST "string(/domain/devices/graphics[@type='vnc']/@listen)", ctxt);
if (obj == NULL || obj->type != XPATH_STRING ||
obj->stringval == NULL || obj->stringval[0] == 0 ||
STREQ((const char*)obj->stringval, "0.0.0.0")) {
if (!(doc = virDomainGetXMLDesc(dom, 0)))
goto cleanup;
if (!(xml = virXMLParseStringCtxt(doc, _("(domain_definition)"), &ctxt)))
goto cleanup;
/* Get the VNC port */
if (virXPathInt("string(/domain/devices/graphics[@type='vnc']/@port)",
ctxt, &port)) {
vshError(ctl, _("Failed to get VNC port. Is this domain using VNC?"));
goto cleanup;
}
listen_addr = virXPathString("string(/domain/devices/graphics"
"[@type='vnc']/@listen)", ctxt);
if (listen_addr == NULL || STREQ(listen_addr, "0.0.0.0"))
vshPrint(ctl, ":%d\n", port-5900);
} else {
vshPrint(ctl, "%s:%d\n", (const char *)obj->stringval, port-5900);
}
xmlXPathFreeObject(obj);
obj = NULL;
else
vshPrint(ctl, "%s:%d\n", listen_addr, port-5900);
ret = true;
cleanup:
xmlXPathFreeObject(obj);
VIR_FREE(doc);
VIR_FREE(listen_addr);
xmlXPathFreeContext(ctxt);
xmlFreeDoc(xml);
virDomainFree(dom);