util/qemu-sockets.c: Support specifying IPv4 or IPv6 in socket_dgram()

[qemu.git] / util / qemu-config.c

diff --git a/util/qemu-config.c b/util/qemu-config.c
index f6101012c02f689a3af34082e745d0f593318e7b..ba375c014892ca6e216857e1dfaadd54c60898f3 100644 (file)
--- a/util/qemu-config.c
+++ b/util/qemu-config.c
@@ -20,7 +20,7 @@ static QemuOptsList *find_list(QemuOptsList **lists, const char *group,
             break;
     }
     if (lists[i] == NULL) {
-        error_set(errp, QERR_INVALID_OPTION_GROUP, group);
+        error_setg(errp, "There is no option group '%s'", group);
     }
     return lists[i];
 }
@@ -39,6 +39,20 @@ QemuOptsList *qemu_find_opts(const char *group)
     return ret;
 }
 
+QemuOpts *qemu_find_opts_singleton(const char *group)
+{
+    QemuOptsList *list;
+    QemuOpts *opts;
+
+    list = qemu_find_opts(group);
+    assert(list);
+    opts = qemu_opts_find(list, NULL);
+    if (!opts) {
+        opts = qemu_opts_create(list, NULL, 0, &error_abort);
+    }
+    return opts;
+}
+
 static CommandLineParameterInfoList *query_option_descs(const QemuOptDesc *desc)
 {
     CommandLineParameterInfoList *param_list = NULL, *entry;
@@ -68,6 +82,10 @@ static CommandLineParameterInfoList *query_option_descs(const QemuOptDesc *desc)
             info->has_help = true;
             info->help = g_strdup(desc[i].help);
         }
+        if (desc[i].def_value_str) {
+            info->has_q_default = true;
+            info->q_default = g_strdup(desc[i].def_value_str);
+        }
 
         entry = g_malloc0(sizeof(*entry));
         entry->value = info;