From 364a77ff0fbd6205826cc321d26d586ad9595123 Mon Sep 17 00:00:00 2001
From: "Daniel P. Berrange" <berrange@redhat.com>
Date: Wed, 22 Aug 2012 10:48:41 +0100
Subject: [PATCH] Add a qemuMonitorGetTargetArch() method for QMP query-target
 command

Add a new qemuMonitorGetTargetArch() method to support invocation
of the 'query-target' JSON monitor command. No HMP equivalent
is required, since this will only be present for QEMU >= 1.2

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
---
 src/qemu/qemu_monitor.c      | 21 +++++++++++++++++
 src/qemu/qemu_monitor.h      |  2 +-
 src/qemu/qemu_monitor_json.c | 45 ++++++++++++++++++++++++++++++++++++
 src/qemu/qemu_monitor_json.h |  1 +
 4 files changed, 68 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index d253a4cf65..36289d2ccc 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -3186,3 +3186,24 @@ int qemuMonitorGetObjectProps(qemuMonitorPtr mon,
 
     return qemuMonitorJSONGetObjectProps(mon, type, props);
 }
+
+
+char *qemuMonitorGetTargetArch(qemuMonitorPtr mon)
+{
+    VIR_DEBUG("mon=%p",
+              mon);
+
+    if (!mon) {
+        virReportError(VIR_ERR_INVALID_ARG, "%s",
+                       _("monitor must not be NULL"));
+        return NULL;
+    }
+
+    if (!mon->json) {
+        virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                       _("JSON monitor is required"));
+        return NULL;
+    }
+
+    return qemuMonitorJSONGetTargetArch(mon);
+}
diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h
index e65a21843e..65ea358bd5 100644
--- a/src/qemu/qemu_monitor.h
+++ b/src/qemu/qemu_monitor.h
@@ -606,7 +606,7 @@ int qemuMonitorGetObjectTypes(qemuMonitorPtr mon,
 int qemuMonitorGetObjectProps(qemuMonitorPtr mon,
                               const char *type,
                               char ***props);
-
+char *qemuMonitorGetTargetArch(qemuMonitorPtr mon);
 
 /**
  * When running two dd process and using <> redirection, we need a
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index b5f6b1aee7..43b003dc13 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -4374,3 +4374,48 @@ cleanup:
     virJSONValueFree(reply);
     return ret;
 }
+
+
+char *
+qemuMonitorJSONGetTargetArch(qemuMonitorPtr mon)
+{
+    char *ret = NULL;
+    int rv;
+    const char *arch;
+    virJSONValuePtr cmd;
+    virJSONValuePtr reply = NULL;
+    virJSONValuePtr data;
+
+    if (!(cmd = qemuMonitorJSONMakeCommand("query-target", NULL)))
+        return NULL;
+
+    rv = qemuMonitorJSONCommand(mon, cmd, &reply);
+
+    if (rv == 0)
+        rv = qemuMonitorJSONCheckError(cmd, reply);
+
+    if (rv < 0)
+        goto cleanup;
+
+    if (!(data = virJSONValueObjectGet(reply, "return"))) {
+        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+                       _("query-target reply was missing return data"));
+        goto cleanup;
+    }
+
+    if (!(arch = virJSONValueObjectGetString(data, "arch"))) {
+        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+                       _("query-target reply was missing arch data"));
+        goto cleanup;
+    }
+
+    if (!(ret = strdup(arch))) {
+        virReportOOMError();
+        goto cleanup;
+    }
+
+cleanup:
+    virJSONValueFree(cmd);
+    virJSONValueFree(reply);
+    return ret;
+}
diff --git a/src/qemu/qemu_monitor_json.h b/src/qemu/qemu_monitor_json.h
index dde02fe0e2..546b6afefd 100644
--- a/src/qemu/qemu_monitor_json.h
+++ b/src/qemu/qemu_monitor_json.h
@@ -312,5 +312,6 @@ int qemuMonitorJSONGetObjectProps(qemuMonitorPtr mon,
                                   const char *type,
                                   char ***props)
     ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3);
+char *qemuMonitorJSONGetTargetArch(qemuMonitorPtr mon);
 
 #endif /* QEMU_MONITOR_JSON_H */