[PATCH 4/5] openvz: Implement domainGetHostname

[Guido Günther <agx@xxxxxxxxxxx>]

If the container doesn't have the hostname parameter set an empty string
("") is returned.
---
 src/openvz/openvz_driver.c |   28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/src/openvz/openvz_driver.c b/src/openvz/openvz_driver.c
index c9150e0..469d043 100644
--- a/src/openvz/openvz_driver.c
+++ b/src/openvz/openvz_driver.c
@@ -234,6 +234,33 @@ cleanup:
 }
 
 
+static char* openvzDomainGetHostname(virDomainPtr dom, unsigned int flags)
+{
+    char *hostname = NULL;
+
+    virCheckFlags(0, NULL);
+
+    hostname = openvzVEGetStringParam(dom, "hostname");
+    if (hostname == NULL)
+        goto cleanup;
+
+    /* vzlist prints an unset hostname as '-' */
+    if (strlen(hostname) == 1 && hostname[0] == '-') {
+        VIR_FREE(hostname);
+        hostname = strdup("");
+        if (hostname == NULL) {
+            virReportOOMError();
+            goto cleanup;
+        }
+    }
+    return hostname;
+
+cleanup:
+     VIR_FREE(hostname);
+     return NULL;
+}
+
+
 static virDomainPtr openvzDomainLookupByID(virConnectPtr conn,
                                            int id) {
     struct openvz_driver *driver = conn->privateData;
@@ -2127,6 +2154,7 @@ static virDriver openvzDriver = {
     .domainIsUpdated = openvzDomainIsUpdated, /* 0.8.6 */
     .isAlive = openvzIsAlive, /* 0.9.8 */
     .domainUpdateDeviceFlags = openvzDomainUpdateDeviceFlags, /* 0.9.13 */
+    .domainGetHostname = openvzDomainGetHostname, /* 0.9.14 */
 };
 
 int openvzRegister(void) {
-- 
1.7.10.4

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