[libvirt] [PATCH v2 3/8] qemu_monitor_json: Move InetSocketAddress build to a separate function

[Michal Privoznik]

Currently, we are building InetSocketAddress qemu json type
within the qemuMonitorJSONNBDServerStart function. However, other
future functions may profit from the code as well. So it should
be moved into a static function.
---
 src/qemu/qemu_monitor_json.c | 53 +++++++++++++++++++++++++++-----------------
 1 file changed, 33 insertions(+), 20 deletions(-)

diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index 2b73884..b87b8b5 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -4734,36 +4734,50 @@ no_memory:
     goto cleanup;
 }
 
-int
-qemuMonitorJSONNBDServerStart(qemuMonitorPtr mon,
-                              const char *host,
-                              unsigned int port)
+static virJSONValuePtr
+qemuMonitorJSONBuildInetSocketAddress(const char *host,
+                                      const char *port)
 {
-    int ret = -1;
-    virJSONValuePtr cmd = NULL;
-    virJSONValuePtr reply = NULL;
-    virJSONValuePtr data = NULL;
     virJSONValuePtr addr = NULL;
-    char *port_str = NULL;
+    virJSONValuePtr data = NULL;
 
     if (!(data = virJSONValueNewObject()) ||
-        !(addr = virJSONValueNewObject()) ||
-        (virAsprintf(&port_str, "%u", port) < 0)) {
-        virReportOOMError();
-        goto cleanup;
-    }
+        !(addr = virJSONValueNewObject()))
+        goto error;
 
     /* port is really expected as a string here by qemu */
     if (virJSONValueObjectAppendString(data, "host", host) < 0 ||
-        virJSONValueObjectAppendString(data, "port", port_str) < 0 ||
+        virJSONValueObjectAppendString(data, "port", port) < 0 ||
         virJSONValueObjectAppendString(addr, "type", "inet") < 0 ||
-        virJSONValueObjectAppend(addr, "data", data) < 0) {
+        virJSONValueObjectAppend(addr, "data", data) < 0)
+        goto error;
+
+    return addr;
+error:
+    virReportOOMError();
+    virJSONValueFree(data);
+    virJSONValueFree(addr);
+    return NULL;
+}
+
+int
+qemuMonitorJSONNBDServerStart(qemuMonitorPtr mon,
+                              const char *host,
+                              unsigned int port)
+{
+    int ret = -1;
+    virJSONValuePtr cmd = NULL;
+    virJSONValuePtr reply = NULL;
+    virJSONValuePtr addr = NULL;
+    char *port_str = NULL;
+
+    if (virAsprintf(&port_str, "%u", port) < 0) {
         virReportOOMError();
-        goto cleanup;
+        return ret;
     }
 
-    /* From now on, @data is part of @addr */
-    data = NULL;
+    if (!(addr = qemuMonitorJSONBuildInetSocketAddress(host, port_str)))
+        return ret;
 
     if (!(cmd = qemuMonitorJSONMakeCommand("nbd-server-start",
                                            "a:addr", addr,
@@ -4786,7 +4800,6 @@ cleanup:
     virJSONValueFree(reply);
     virJSONValueFree(cmd);
     virJSONValueFree(addr);
-    virJSONValueFree(data);
     return ret;
 }
 
-- 
1.8.2.1